Network Working Group K. McGuinness Internet-Draft Independent Intended status: Informational 22 August 2026 Expires: 23 February 2027 An Architecture for Mission-Bound Authorization draft-mcguinness-mission-architecture-latest Abstract A Mission is a durable, approval-backed governance object for authorization: the approved task, with a lifecycle, that authority is derived for, bound to, and gated on. It is not a new way to express authority. Read as one system, the Mission model defines a delegated-authority layer: authentication says who is acting, and entitlement governance says what a principal may hold; this layer governs the approved task itself. It exists because the authority an Approver consents to is a capability envelope, not a task script, and the gap between that envelope and what a run actually does is where agent risk lives; the family's mechanisms exist to narrow that gap. This document is the structural view: the object and its invariants, a Mission's life end to end, the roles and substrate, the verb spine the profiles form, the deployment patterns, the assurance levels a deployment claims, and the requirements the family answers. It is Informational: it defines no protocol, object, or requirement, and every mechanism it names is defined by the profile it points to. About This Document This note is to be removed before publishing as an RFC. The latest revision of this draft can be found at https://mcguinness.github.io/mission-bound-authorization/draft- mcguinness-mission-architecture.html. Status information for this document may be found at https://datatracker.ietf.org/doc/draft- mcguinness-mission-architecture/. Source for this draft and an issue tracker can be found at https://github.com/mcguinness/mission-bound-authorization. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on 23 February 2027. Copyright Notice Copyright (c) 2026 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/ license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Table of Contents 1. Introduction 1.1. Map of This Document 2. Status: An Informational Architecture 3. Conventions and Terminology 4. The Mission 4.1. The Capability Envelope 4.2. A Mission's Life 5. Non-Goals 6. The Mission Verbs 6.1. Propose 6.2. Approve and Record 6.3. Govern 6.4. Enforce Each Action 6.5. Run and Wind Down 6.6. Delegate 6.7. Project 6.8. Continue 6.9. Prove 6.10. Analyze 7. The Reference Architecture 7.1. The Five Packages 8. Mission Invariants 8.1. The Ontology Contract 9. Mission Roles and Components 9.1. The Actor Chain 9.2. Three Objects, Three Lifecycles 9.3. Swarm Execution: Multiplication, Not Delegation 10. The Mission Substrate 10.1. The Primitives, at a Glance 10.2. Token Classes 10.3. The Mission-Bound Credential 10.4. Approval Fidelity 10.5. The Validity Model 10.6. The Binding Checklist 10.7. Error Surfaces 11. The Authority Derivation Boundary 12. Mission Deployment Patterns 12.1. Binding Security Architectures 12.2. Entry Ramps by Estate 12.3. Comparison to a Conventional Stack 12.4. A Worked Composition 13. Mission Assurance Levels 13.1. Composed Kill-Switch Reality 13.2. Assurance Claims 13.3. Mission Binding Properties 14. The Mission Deployment Profile 15. Prevention, Detection, and Residue 15.1. The Containment Matrix 16. Mission Requirements 16.1. Context and Intent 16.2. Consent and Approval 16.3. Lifecycle 16.4. Delegated, Projected, and Enforced Execution 17. Mission Document Map 18. Security Considerations 19. Privacy Considerations 20. IANA Considerations 21. Informative References Acknowledgments Author's Address 1. Introduction A Mission is a durable governance object created by an explicit approval event: the approved task, with a lifecycle. In the authority-bearing bindings, authority for the task is derived for the Mission, bound to it, and gated on its state. In AAuth, the Mission Context instead governs resource decisions at the PS without becoming their authority language. The Mission is not a new way to express authority: Rich Authorization Requests [RFC9396] and kindred mechanisms express authority, and the Mission is the approved task that authority serves. The object fills a gap current practice pays for daily: an estate that cannot size authority to a task compensates with read-only scoping, a human executing every write, or permanently fenced pilots, and the Mission is the representation those controls substitute for. The model is deliberately decomposed: the OAuth binding (the "issuance profile" to its OAuth companions, [I-D.draft-mcguinness-oauth-mission]) defines the object and its OAuth 2.0 [RFC6749] realization, a standalone binding hosts the same object without changing an existing Authorization Server ([I-D.draft-mcguinness-mission-authority-server]), an AAuth binding maps the shared approval, reference, lifecycle-gate, and log capabilities onto that protocol's native Mission Context without importing the OAuth Authority Set ([I-D.draft-mcguinness-mission-aauth]), and optional companions layer approval, lifecycle, enforcement, runtime, delegation, and proof capabilities on top. The decomposition keeps each interface small but spreads the structure across many documents and several bindings; this document is the single structural view. The bindings are peers of one another. OAuth is the family's first- authored binding, and OAuth 2.0 is the substrate with the most deployed infrastructure; that is a deployment fact, not a maturity ranking, and no production Mission deployment is known today on any binding. Adopting Missions on OAuth requires the changes the OAuth binding defines. Peer standing implies neither identical capabilities nor identical adoption cost: AAuth, natively contextual, adds no new wire members, and each binding's Mission Substrate Statement declares what it supplies. Read as one system, the family defines a *delegated-authority layer* with OAuth 2.0, the standalone Mission Authority Server, and (as an experimental sketch) UMA 2.0 as authority-bearing bindings. AAuth composes at the shared Mission Context layer: approval, stable reference, lifecycle gating where the PS is on path, and governance history (Section 4). It defines no protocol, no object, and no requirement. It is a map, not the territory: every mechanism named points at the profile that normatively defines it, and where this document and a profile appear to differ, the profile governs. 1.1. Map of This Document Part order follows a reader's needs: the model first (the Mission and its life, Section 4; what the family does not do, Section 5), then the verb spine that organizes every mechanism (Section 6), the reference shapes deployments take (Section 7), the semantic ground rules (Section 8), the components and identity model (Section 9), the binding-neutral substrate summary (Section 10) with the derivation boundary behind it (Section 11), and the deployment layer: patterns and entry ramps (Section 12), assurance levels and binding properties (Section 13), the Deployment Profile (Section 14), and the prevention-detection and containment matrices (Section 15). The requirements the family answers are Section 16; Section 17 locates every document; DRAFTS.md in the repository is the full catalog. 2. Status: An Informational Architecture This document is Informational. It establishes no conformance class and defines no new mechanism, claim, or wire format. Its boundary with the Mission Security Model ([I-D.draft-mcguinness-mission-security-model]) is deliberate: this document describes components, interfaces, and data flows; the security model describes the trusted base and how each component's compromise degrades the guarantees. Each profile's own Security Considerations remain normative over both. 3. Conventions and Terminology Where this document uses words like "must" or "should," they carry their ordinary English meaning and describe what a referenced profile establishes, not a requirement this document places. Mission-model terms are used as the OAuth binding defines them ([I-D.draft-mcguinness-oauth-mission]), the family's first-authored realization; the substrate contract ([I-D.draft-mcguinness-mission-substrate]) carries the binding- neutral kernel forms. Policy Enforcement Point (PEP), Policy Decision Point (PDP), and consequential action are the runtime profile's ([I-D.draft-mcguinness-mission-runtime]); Mission Authority Server (MAS) is defined by [I-D.draft-mcguinness-mission-authority-server]; the AAuth binding is defined by [I-D.draft-mcguinness-mission-aauth]. 4. The Mission OAuth 2.0 issues access tokens for individual resource requests; it has no durable, approved artifact for the larger task a client pursues on a user's behalf. That matters for AI agents: given a mission (book the trip, reconcile the ledger), an agent takes many actions across many resources over a long time, spawning sub-agents and surviving restarts, and independently issued tokens cannot express the approved task, its boundary, or its end (the OAuth binding's Introduction). The family separates the task from the authority, and the authorization flow separates four objects: the Intent (proposed work, inert until approved), the Mission (the approved, governed work), the Authority derived for it, and each Action that uses it, with lifecycle cutting through the last three. The Mission is the approved task, with a lifecycle. In the OAuth model, the Authority Set is the concrete authority (resources, actions, constraints) derived for it. A Mission is not another authorization_details type: it is the durable, approval-backed object an Authority Set is derived for and gated by (the OAuth binding's Why a New Object section). A client proposes a Mission Intent, and MAY propose concrete authority alongside it; the Mission Issuer derives an Authority Set; an approval event commits them and creates the Mission. In the OAuth binding, the commitment is the integrity anchors: intent_hash over the approved Mission Intent, authority_hash over the consented Authority Set, and, where the client submitted an authority proposal, proposal_hash over the submitted authorization_details array, each computed over a domain-separated, issuer-bound envelope with fixed canonicalization, so an auditor can reproduce each digest from the record alone (the OAuth binding's Mission Approval, Integrity Anchors, and Canonicalization Rules sections). The record is immutable except for its state (the Mission Record section). The Mission lifecycle states are active, revoked, and expired, and only active permits issuance or continued reliance. A non-active state stops new derivation at once; authority already issued ends at the earliest of delivered revocation, a runtime or state-aware re- check, or the credential's own expiry (Section 10.5). Companions add states (suspended, completed, superseded, cascaded), and one rule keeps that safe without a registry: a consumer treats every state other than the exact value active, including one it does not recognize, as non-active, so an unrecognized state fails safe (the OAuth binding's Mission Lifecycle and Gating section). AAuth realizes the separation differently. Its exact-byte s256 commits the private approved mission blob, and {approver, s256} is the stable reference. The PS applies contextual governance using that blob and the ordered mission log; scopes, resource tokens, Resource and Access Server policy, and optionally R3 carry deterministic resource authorization. AAuth does not add the OAuth Authority Set or its two anchors, and its native lifecycle remains exactly active or terminated. The Mission model is the beginning of a distinct layer. Authentication and token issuance answer who is acting and what a single credential carries; governance of standing entitlements answers what a principal should hold over time. Neither governs the approved task a delegate performs on a principal's behalf: its bounded authority, its lifecycle, the per-action check, and the evidence that binds back to it. That is the delegated-authority layer this family defines, composing with the layers below rather than replacing them, and the Mission Authority Server ([I-D.draft-mcguinness-mission-authority-server]) is its binding-independent control plane across an estate, whichever party issues a given token. The control-plane vocabulary is exact, not loose: * the issuer side holds desired state (the record, its authority, its lifecycle and state version), reconciles it (gating, the ceiling review, evidence reconciliation), and distributes bounded authority (policy views, status, the management surface); * tokens and the PEP/PDP boundary are the layer's data plane; and * Status and Signals are the channel between the two. The plane the layer governs is authority, never operations: how an agent runs stays with the harness and the orchestrator. 4.1. The Capability Envelope One tension organizes the whole family. A Mission commits its authority and intent once, at approval, but an agent's work is open- ended: the actions a task will take are not known when it is approved. "Reconcile Q3 invoices" must authorize reading any invoice and posting any adjustment under the cap, because the specific ones cannot be enumerated in advance. So the Authority Set an Approver consents to is a *capability envelope, not a task specification*, and the gap between that envelope and what a given run actually does is where agent risk lives. The family's mechanisms are levers that narrow that gap: * constraint-bounding and the subset rule shrink the envelope at issuance; * runtime enforcement checks each action against it at the point of use; * action-bound approval re-consents the highest-consequence actions with their concrete parameters; * progressive authorization trades many increment approvals for one bounded ceiling; * metering caps cumulative consumption; and * completion retires authority as the task finishes. No single lever closes the gap; a deployment composes the ones its risk warrants (Section 13), and the verbs of Section 6 organize the levers by the question each answers. What approval commits is broader than the structured Authority Set alone: it also commits the rendered intent context (goal, constraints, and, where it differs, the requested ceiling), the effective expires_at, and the rendered controls bounds ([I-D.draft-mcguinness-oauth-mission]). Concrete request values, current consumption, and action sequencing are decision-time facts, evaluated later by runtime policy, metering, or action-bound (transaction) approval; core does not require them to be re-rendered to the original Approver, though action-bound approval may re-render exactly that. The lifecycle control gates new derivation from the envelope; a credential already materialized under it keeps running to its own bound. The two halves compose but do not substitute: an envelope real at approval time can still admit, at decision time, an effect the Approver never saw rendered in that form. The levers share one strategy: they convert semantic risk into structural signals. A policy decision point is never asked to judge whether content is harmful; provenance (the harness taint context), composition (the quarantine pattern), egress enumeration and volume bounds, separation of duty, and re-consent turn that question into facts a decision can gate on. A content evaluator a deployment adds composes as Resource policy at the decision point and only ever narrows. The stance beneath the levers is *survivable incorrectness*: the agent is probabilistic, so the family never bets on the model being right and builds so that wrong is survivable, on two arms. The action arm is this envelope and its levers, wire-backed, with in- flight work unwinding through recorded reversibility classes ([I-D.draft-mcguinness-mission-orchestration]). The input arm is *least exposure*: everything the agent sees can steer it and everything it holds can leak, so a Mission budgets disclosure as well as authority, and mediated custody generalizes from credentials to context. The arms differ in maturity, and the difference is stated rather than blurred: the exposure arm's enforceable edges are the harness taint rule, egress mediation, and catalog filtering ([I-D.draft-mcguinness-mission-harness], [I-D.draft-mcguinness-mission-runtime], [I-D.draft-mcguinness-mission-authzen]), while its interior, retrieval, memory, and context assembly scoped to the Mission, has no interoperable form yet and is deployment discipline, declared in the Deployment Profile (Section 14) rather than claimed. The envelope meets its hardest case in the open world. The OAuth model starts with authority client-proposed and enumerated at approval; an agent that discovers resources at encounter time breaks that premise, and some authorization mechanisms invert it: the resource declares its own operations and consequences. Who owns meaning, and how it reaches derivation, consent, and enforcement, is stated once as the ontology contract (Section 8.1). Where the OAuth discovery profile consumes a self-declaration, the declaration's digest is committed with the binding evidence: an additional commitment beside the Mission's integrity anchors, recording what the resource claimed to be at the moment authority bound to it. The rest of the encounter, its routing through drawdown, catalog binding, projection, or fresh approval, and its identity pinning and floors, is the discovery companion's contract ([I-D.draft-mcguinness-mission-discovery]). AAuth can use R3 for resource-owned deterministic semantics without placing that declaration or such an additional commitment in the private mission blob. 4.2. A Mission's Life The structure is easiest to see by following one Mission end to end under the OAuth binding: an operator gives an agent the task "reconcile Q3 invoices." 1. *Propose.* The client shapes the request into a structured Mission Intent, untrusted by construction, and submits it in a Pushed Authorization Request [RFC9126], optionally proposing concrete authority on the standard authorization_details parameter alongside it ([I-D.draft-mcguinness-mission-shaping]; the OAuth binding). 2. *Approve and record.* The Authorization Server derives an Authority Set (read invoices, post adjustments under a cap), discloses it, and the Approver approves. The approval event commits intent_hash, authority_hash, and, where a proposal was submitted, proposal_hash, and creates the Mission, active with an expiry; Consent Evidence commits what was shown ([I-D.draft-mcguinness-oauth-mission-consent-evidence]). 3. *Issue.* Tokens are derived under the subset rule, carry the mission claim, and derivation and refresh are refused once the Mission leaves active (the OAuth binding). 4. *Enforce.* Before each consequential action (posting an adjustment), the PEP obtains a PDP permit bound to the action's concrete parameters and to current Mission state ([I-D.draft-mcguinness-mission-runtime], [I-D.draft-mcguinness-mission-authzen]). 5. *Delegate.* A sub-agent that verifies ledger entries receives a child Mission with strictly narrower authority and lineage ([I-D.draft-mcguinness-oauth-mission-child-delegation]). 6. *Govern.* Consumers observe state through Status and Signals; growth requires an approved successor ([I-D.draft-mcguinness-oauth-mission-expansion]), and entries retire as their work completes ([I-D.draft-mcguinness-oauth-mission-status]). 7. *Stop.* Revocation or expiry turns every gate at once: issuance refuses, the PDP denies, the harness pauses bound sessions and queues, and the orchestrator unwinds in-flight work ([I-D.draft-mcguinness-mission-harness], [I-D.draft-mcguinness-mission-orchestration]). 8. *Prove.* The record, anchors, evidence, and receipts let an auditor reconstruct what was approved, shown, decided, and done, and a Mandate carries the committed facts to parties outside the deployment ([I-D.draft-mcguinness-mission-mandate], [I-D.draft-mcguinness-mission-audit]). The approval-to-permit path in sequence: Approver Agent AS PEP/PDP RS | | | | | | | 1 Mission | | | | | Intent (PAR) | | | | |---------------->| | | | 2 disclose and approve | | | |<--------------------------->| | | | | Mission active:| | | | | intent_hash, | | | | | authority_hash | | | | | 3 Mission-bound | | | | | token | | | | |<----------------| | | | | 4 action, token, parameters | | | |------------------------------>| | | | | 5 state and | | | | | authority | | | | |<----------->| | | | | | 6 permit, | | | | | evidence | | | 7 permitted action executes |----------->| Under the standalone binding the same life runs with ordinary tokens and the Mission Join in place of step 3's claim carriage (Section 12). Under the AAuth binding, the Person Server instead governs the native Mission Context through propose, clarify, approve, and the mission log; it does not emulate the AS's Authority Set, integrity anchors, PDP permits, Child Missions, or portable evidence (Section 4). 5. Non-Goals The model's boundary is deliberate. The family does not define: * *A new authority format, or a new grant protocol.* Rich Authorization Requests [RFC9396] and kindred mechanisms already fill the authority-expression role; the family leaves that to them (Section 4). The same restraint holds against GNAP and the capability-system lineage (macaroons, Biscuit, UCAN, object- capability narrowing): this family composes with deployed grant protocols and attenuation primitives rather than introducing a competing one of its own; the OAuth binding states the comparison ([I-D.draft-mcguinness-oauth-mission]). * *A policy language.* The PDP evaluates the Mission's Authority Set, constraints, and state; how a deployment authors policy beyond them is local ([I-D.draft-mcguinness-mission-runtime]). * *Entitlement governance.* What standing access a principal should hold over time belongs to existing governance layers; the delegated-authority layer composes with them (Section 4). * *Agent identity and deployment governance.* Who the agent is, its concrete instance, and its approved behavioral version belong to the deployment's agent IAM and change governance; the family authenticates against and consumes those facts without defining them (Section 9.2). * *An agent framework.* The harness constrains the execution environment's relationship to Mission state; it does not say how an agent plans, reasons, or calls tools ([I-D.draft-mcguinness-mission-harness]). * *Semantic derivation.* Whether a derived Authority Set is the right reading of the task is committed and auditable, not standardized (Section 11). * *Agent trustworthiness.* The family bounds what a compromised or injected agent can do; it does not make the agent trustworthy ([I-D.draft-mcguinness-mission-security-model]). 6. The Mission Verbs The family organizes along a verb spine: each verb answers one question, sits on one trust boundary, and is owned by named documents; the levers of Section 4.1 sort onto this spine by the question each answers. propose OAuth Intent Shaping or AAuth native proposal (client or agent side, untrusted) | approve Mission control point: the OAuth AS, Mission and record Authority Server, or AAuth Person Server contextual-governance binding (+ Consent Evidence, Deferred Approval) | the Mission: durable approved context and lifecycle; authority anchors where defined | govern Status (pull), Signals (push), Expansion (widen), Completion (retire) | enforce Runtime contract -> AuthZEN binding: each action a PDP permit before every consequential action | run and Harness (continuity is not authority), wind down Orchestration (unwind in-flight work) delegate Child Delegation, Offline Attenuation project Cross-Domain Projection (a Mission honored in another trust domain) continue Mission Continuation (authorization continuity over ICA, async delegation, and cross-domain transports) prove Consent Evidence, Mandate, Audit analyze Security Model (the trusted base) 6.1. Propose The question: how does a user's request become a candidate approved task? In OAuth, the boundary is the client side and Intent Shaping produces an untrusted Mission Intent ([I-D.draft-mcguinness-mission-shaping]), entering through Pushed Authorization Requests [RFC9126] or the MAS submission endpoint. In AAuth, the agent sends the native description and requested tools to the Person Server's mission endpoint. The AAuth binding defines no Mission Intent or dependency on the shaping profile. 6.2. Approve and Record The question: how does a proposed task become an approved, committed Mission? The boundary is the binding's control point; the approval event is where trust is created. Owners: the five bindings ([I-D.draft-mcguinness-oauth-mission], [I-D.draft-mcguinness-mission-authority-server], [I-D.draft-mcguinness-mission-aauth], [I-D.draft-mcguinness-mission-uma], [I-D.draft-mcguinness-mission-gnap]), Consent Evidence ([I-D.draft-mcguinness-oauth-mission-consent-evidence]) committing the disclosure shown to the Approver, and Deferred Approval ([I-D.draft-mcguinness-oauth-mission-approval]), the OAuth binding's asynchronous path, with an experimental companion adding an in-review narrowing negotiation; the standalone and AAuth bindings are natively asynchronous. AAuth's baseline approval commits its exact mission blob, not the family Consent Evidence object. Where the experimental progressive authorization companion is used, the initial approval also consents an authority ceiling for later staged widening ([I-D.draft-mcguinness-oauth-mission-progressive]). Who holds the deciding side is a spectrum, not a species: the approval event requires an accountable principal deciding against committed inputs before any authority exists, and the proposer is never the approver. A deterministic, versioned policy can approve at machine speed within a ceiling a human consented to (the OAuth binding's policy_drawdown and template authorization bases, Section 8): policy approves the instance because a human approved the policy or the template, with policy_version keeping that chain re- checkable, while a model's generated judgment is never the sole authority for granting or widening: a generated approver reading attacker-influenced proposals is itself an injection surface. The high-consequence classes stay on a fresh human decision, per the progressive profile's prohibited set ([I-D.draft-mcguinness-oauth-mission-progressive]). 6.3. Govern The question: how do consumers observe Mission state, and how does authority grow or retire mid-task? The boundary: between the issuer and every consumer relying on state. Owners: Status, the signed pull surface with a lifecycle endpoint and per-entry completion discharge ([I-D.draft-mcguinness-oauth-mission-status]); Signals, the push complement ([I-D.draft-mcguinness-oauth-mission-signals]); Expansion, widening only via an approved successor ([I-D.draft-mcguinness-oauth-mission-expansion]); Containment, event- triggered monotonic narrowing of a live Mission's effective authority ([I-D.draft-mcguinness-oauth-mission-containment]); Management, fleet enumeration and bulk lifecycle for operators ([I-D.draft-mcguinness-oauth-mission-management]); and Discovery, experimental, binding encountered resources within a pre-consented ceiling ([I-D.draft-mcguinness-mission-discovery]). The AAuth binding carries this verb natively: its management companion for status, termination, and delegation-tree queries ([I-D.draft-mcguinness-mission-aauth-management]); the approved lifetime bound is AAuth's own expires_at, profiled by the expiry document ([I-D.draft-mcguinness-aauth-mission-expiry]). 6.4. Enforce Each Action The question: is this specific action, with these parameters, permitted under this Mission now? The boundary: the last controllable point between agent and resource. Owners: the runtime profile, the decision contract with parameter binding, custody, and fail-closed behavior ([I-D.draft-mcguinness-mission-runtime]); its AuthZEN binding, the concrete decision API ([I-D.draft-mcguinness-mission-authzen]); the runtime evidence companion, the Decision Evidence, Execution Evidence, and Refusal Record objects ([I-D.draft-mcguinness-mission-runtime-evidence]). Its decision composes conjunctively with the structural plane above: Effective Authority Set membership, every applicable cumulative- consumption or stateful operational gate, and a required action-bound approval are each independently necessary, and none grants, widens, or restores another ([I-D.draft-mcguinness-mission-runtime], Section "The Runtime Decision"). 6.5. Run and Wind Down The question: how does governed work start, persist, pause, and unwind when Mission state changes? The boundary: the operator's execution environment around the agent. Owners: the harness, binding session continuity to Mission state ([I-D.draft-mcguinness-mission-harness]); Orchestration, unwinding in-flight work through reversibility classes and recorded unwind plans ([I-D.draft-mcguinness-mission-orchestration]). 6.6. Delegate The question: how does authority reach a sub-agent without widening? The boundary: between principals acting under one approval. Owners: Child Delegation, child Missions with lineage, strict-subset authority, and cascade revocation ([I-D.draft-mcguinness-oauth-mission-child-delegation]); Offline Attenuation, narrower Mission-bound tokens minted off the issuer's hot path ([I-D.draft-mcguinness-oauth-mission-attenuation]). Offline attenuation requires the runtime enforcement layer: its kill switch is the runtime state re-check. Both build on the actor chain of the OAuth binding's Delegation Within a Mission section. The chooser: the OAuth binding's token-exchange delegation for an execution hop living and dying with the parent's lifecycle; a Child Mission when the delegate needs its own lifecycle, approval, or audit identity; attenuation, experimental, only where offline minting is the constraint. AAuth delegates natively: a parent-mediated sub-agent under parent_agent, distinct from the call chain of a service hop, with no Authority Set machinery imported ([I-D.draft-mcguinness-mission-aauth]). 6.7. Project The question: how is one Mission honored in another trust domain? The boundary: a trust boundary the origin does not control, where the verifier holds no session with the issuer. Owner: Cross-Domain Projection, a single-hop grant that carries the Mission's identifier, issuer, and authority hash into a partner domain unchanged, where a Resource AS mints a local token bounded by the projected authority ([I-D.draft-mcguinness-oauth-mission-cross-domain]). Projection preserves authority across the boundary rather than narrowing it to a sub-actor, which is why it is a distinct verb from Delegate; downstream revocation latency is the local token lifetime. 6.8. Continue The question: how does a Mission's authorization continue, under the same approval and constraints, when the acting identity must be re- established at each hop or after the original credential is gone? The boundary: the seam between authorization continuity, which the Mission owns, and identity continuity, which a transport carries. Owner: Mission Continuation ([I-D.draft-mcguinness-oauth-mission-continuation]), the authorization-continuity profile, which keeps three easily conflated things apart. Identity continuity, who is acting and how that identity legitimately continues, rides a transport rather than this profile: Identity Continuation ([I-D.draft-mcguinness-oauth-id-continuation-assertion]) for a short- lived, sender-constrained hop within a domain; async delegation ([I-D.draft-zhu-oauth-async-delegation]) for a long-running, disconnected task; and the cross-domain grant ([I-D.draft-mcguinness-oauth-mission-cross-domain]) across a trust boundary. Authorization continuity, what work remains authorized under which constraints on whose approval, is the Mission's: every continued grant derives a subset of the Mission's Authority Set, is state-gated at issuance, is bounded by the Mission's expiry, and ends when the Mission goes terminal. Execution-time evidence records, against the Mission, what was done at each continued hop. The load- bearing invariant is that a continuation handle grants nothing: it names an accepted hop, and every continued grant re-passes the Mission's active gate, so continuity is never authority, the rule the harness already applies to session continuity ([I-D.draft-mcguinness-mission-harness]). Continue is therefore distinct from Delegate, which narrows authority to a sub-actor, and it uses the Project verb's cross-domain grant as one transport rather than replacing it. 6.9. Prove The question: what can a party outside the deployment verify about what was approved and done? The boundary: across trust domains and time; the verifier holds no session with the issuer. Owners: Consent Evidence ([I-D.draft-mcguinness-oauth-mission-consent-evidence]); the Mandate, a signed, portable statement that authorizes nothing ([I-D.draft-mcguinness-mission-mandate]); the Mission Receipt, portable evidence of an action taken under a Mission ([I-D.draft-mcguinness-mission-runtime]); Audit Transparency, the append-only evidence log ([I-D.draft-mcguinness-mission-audit]). 6.10. Analyze The question: which components must be trusted, and what does each one's compromise cost? The boundary: the whole system. Owner: the Mission Security Model ([I-D.draft-mcguinness-mission-security-model]). 7. The Reference Architecture The family is a menu, but a reader should meet it as a meal. Four stacks, each containing the previous, are the shapes deployments actually take, and the second is the reference: *Protocol core*: the OAuth issuance binding alone, the realization these stacks are expressed in (chosen for OAuth 2.0's deployed infrastructure): the standardizable primitive (approved, anchored, state-gated Missions), Mission-substrate conformance (Section 16), no per-action control (Baseline Issuance, Section 13). The stacks are this OAuth realization throughout; a peer binding realizes the levels per its own document, and peer standing does not imply identical rungs or capabilities. *Reference security architecture*: core plus runtime enforcement, its AuthZEN binding, and a freshness source (the Runtime-Enforced level, Section 13). This is the architecture this document means when it says a Mission is enforced, and the one an evaluation should picture by default. It presumes an authority-bearing binding; under AAuth the analogous per-action control is the Person Server's contextual gate on PS-mediated paths ([I-D.draft-mcguinness-mission-aauth]). *Recommended agent architecture*: the reference architecture plus Consent Evidence and the harness (the Governed Agent level): what a deployment running autonomous AI agents should build. *High-assurance architecture*: the recommended architecture plus mediated custody, no unmediated path, action-bound approval, active freshness, and agent-isolated approval rendering (the High- Assurance Agent level). 7.1. The Five Packages Independent of how the drafts are cut for standardization, the system decomposes into five architecture packages; the document map (Section 17) names every draft, and each belongs to one package: 1. *Mission Control*: the object, approval (including deferred and revision), lifecycle, status and signals, expansion, completion, management. 2. *Authority Distribution*: the four issuer bindings, the issuance grant, cross-domain projection, child delegation, offline attenuation. 3. *Runtime Enforcement*: the runtime contract, the AuthZEN binding, parameter binding, custody, metering. 4. *Agent Execution Governance*: the harness, orchestration, shaping, discovery. 5. *Evidence and Accountability*: consent evidence, the Mandate, audit transparency, and the decision and execution evidence the runtime package produces. A product architect deploys packages; a standards reviewer reads drafts; the two views name the same system. 8. Mission Invariants The following seven invariants define the family's portable-authority model and are stated normatively by their home documents. They apply to the OAuth binding and to companions and bindings that explicitly adopt the corresponding Authority Set capabilities. A change that would break one in those bindings is a change to that model, not to a profile. The AAuth binding adopts the context-level invariants: durable approval, stable attribution, exact-byte integrity, an active-state gate at the PS, and termination. It does not adopt the OAuth Authority Set, the OAuth integrity anchors, or universal subset derivation. AAuth resource authority is decided afresh in the vocabulary and policy of each Resource or Access Server, with contextual PS governance when the PS is on path. *Authority serves an approved task*: No Mission-bound authority exists except by derivation for a Mission, and a Mission is created only when rooted in an approved authorization basis that commits intent_hash and authority_hash (the OAuth binding). Fields an agent can influence shape authority only through the pre-approval derivation the Approver consents to; once the Mission is approved they are inert and never derive, widen, or gate authority. *Only active permits*: Issuance, refresh, and reliance require the exact state active; every other state, including an unrecognized one, fails safe (the OAuth binding's Mission Lifecycle and Gating section). In AAuth, only PS operations and the PS-asserted and federated authorization paths are structurally gated; identity- based and resource-managed decisions do not pass through the PS. On the gated paths the gate covers requests whose resource token carries the validated Mission Reference; a stripped reference yields a missionless request, bounded by the binding's downgrade rules ([I-D.draft-mcguinness-mission-aauth]). *Authority only narrows*: Derived tokens, delegated child Missions, attenuated tokens, and cross-domain projections carry subsets; widening exists only as an approved successor: a fresh approval ([I-D.draft-mcguinness-oauth-mission-expansion]), or policy drawdown within a ceiling a human pre-consented ([I-D.draft-mcguinness-oauth-mission-progressive]). *Revocation is possession-independent*: A Mission ends by a state change at its issuer, not by finding and destroying credentials; outstanding credentials meet the issuance gate, the runtime re- check, or their own expiry, whichever comes first (Section 10.5). *Attribution is carried, never inferred*: Each role in the actor chain travels in its own construct, and the evidence layer records them together; no role is derived from another (Section 9.1). This invariant scopes the actor chain. The credential-to-Mission association is itself a carried fact only where a binding carries the mission claim; under the standalone binding the PDP's join establishes it by inference, bounded by that binding's join assurance (Section 12). *Enforcement fails closed; inert surfaces fail safe*: A PDP that cannot establish state or authority within the published staleness bound denies, and a consumer that cannot refresh state treats its cache as unreliable rather than as permission ([I-D.draft-mcguinness-mission-runtime]). *Anchors commit; they do not prove semantics*: The integrity anchors prove what was approved and committed, not that the derivation was the right reading of the task (Section 11). AAuth's corresponding integrity property is the s256 commitment over exact mission-blob bytes, not the OAuth integrity anchors. Read against "approved" in the first invariant, the OAuth binding fully defines one authorization basis, direct, a human's own approval. It provides the extension point, an authorization-basis type string, that companion profiles use to define others: template, a dispatch drawing on a ceiling the human consented to once, and policy_drawdown, a child instance a policy adjudicates within a bound the parent's human already consented to. This is never an eighth invariant: every value of the basis, defined by the OAuth binding or by a companion, fixes the same accountable human as consent_principal; they differ only in what activated this instance and what root that activation traces to (the OAuth binding). Read as shared capabilities rather than universal wire semantics, the bindings carry durability, attribution, and termination. Narrowing and containment require a structured-authority capability and are not baseline AAuth Mission Context properties. Read on the artifact plane, the same invariants forbid authority from riding a work product an agent produces: no authority is acquired by information propagation alone, and a work product crossing into a Mission is input that the receiving Mission re-evaluates under its own Authority Set. This is a reading of the invariants above, not an eighth invariant; carrying that boundary through non-transitive Mission-to-Mission handoff is the Mission Work Products companion's role ([I-D.draft-mcguinness-oauth-mission-work-products]). The OAuth binding states that rule in its "Authority Does Not Propagate With Information" section ([I-D.draft-mcguinness-oauth-mission]); that section, not this summary, is the normative text this passage tracks. Read under composition, the invariants bound one Mission's own Authority Set; they do not by themselves bound the aggregate surface a delegation tree, a cross-domain hop, or a chain of child generations reaches together. Delegation depth resets at each cross- domain hop and at each child generation, and a child's own derivation cap is independent of its parent's, so the authorized surface a body of work can reach can exceed what any single approval appears to bound. This is again a reading of the invariants above, not an eighth invariant; disclosing the composed bound at the consent surface is the cross-domain and child-delegation profiles' role ([I-D.draft-mcguinness-oauth-mission-cross-domain], [I-D.draft-mcguinness-oauth-mission-child-delegation]), and bounding aggregate consumption is the metering profile's ([I-D.draft-mcguinness-mission-metering]). The OAuth binding states the same composition property in its "Composition and the Effective Ceiling" section ([I-D.draft-mcguinness-oauth-mission]); that section, not this summary, is the normative text this passage tracks. 8.1. The Ontology Contract The derivation boundary (Section 11, later in this document) settles who commits authority; this section settles who owns what an operation means. The ownership statement is one sentence: the resource owns the ontology, its operations, its constraint semantics, and their consequences, while derivation, consent rendering, and enforcement consume that meaning without owning it, and no layer invents meaning it does not own. The consuming contract is equally short: meaning binds at approval, is enforced at the point of use, and any translation between the resource's vocabulary and another party's is trusted, verified, or separately approved, never a place where authority widens (Section 10.4). One boundary is shared by agreement: the resource owns its operation semantics and consequences, while the family owns the registered cross-resource constraint vocabulary, which a resource explicitly advertises and adopts before it binds ([I-D.draft-mcguinness-oauth-mission]). Resource-owned meaning reaches the three consuming layers through five mechanisms, each normative in its own home and composing as one contract: Common Constraints: The registered constraint vocabulary every conforming party evaluates identically, with the mission_constraints_supported protected-resource metadata member advertising which constraints a resource enforces. Home: the issuance profile ([I-D.draft-mcguinness-oauth-mission]). Capability-source binding: Catalog-sourced capability definitions (an MCP tool, an OpenAPI operation) content-digested at derivation and refused on drift at decision time, so the meaning authority bound to is the meaning enforced. Home: the capability-binding companion ([I-D.draft-mcguinness-mission-capability-binding]). Operation Profiles: The per-operation statement of normalization and binding rules, carrying resource-declared operation semantics such as idempotency, reversibility, and lease requirements into parameter binding. Home: the runtime profile ([I-D.draft-mcguinness-mission-runtime]). The encounter contract: What is submitted, adjudicated, and recorded when an agent meets a resource the approval could not enumerate, so meaning that arrives late still binds before use. Home: the discovery companion ([I-D.draft-mcguinness-mission-discovery]). Resource-Declared Semantics: The full inversion: the resource publishes its operations, their human meaning, and their consequences. Under the OAuth discovery composition, the declaration can be content-addressed by r3_s256 as an additional commitment beside the Mission's integrity anchors; the declared operations become candidate vocabulary that derivation narrows against. AAuth can instead use R3 as a resource-owned deterministic authorization vocabulary while the private mission blob remains contextual PS governance. R3 content addressing is not a baseline AAuth mission anchor. Home: the discovery and R3 compositions, informative. Behind the five mechanisms sits one direction axis, and the direction is chosen per encounter, not fixed by binding. The family inherits OAuth's client-proposed default: the client names the authority it wants and the resource's meaning arrives through metadata, catalogs, and profiles (Section 4.1). Resource-Declared Semantics is the inversion, where the resource speaks first. Where a structured- authority binding commits that meaning at approval, it is enforced at use and translation never widens. Under the OAuth binding the resource-declared direction runs entirely through seams the family already has: the encounter contract routes the declaration ([I-D.draft-mcguinness-mission-discovery]), narrowing-mode derivation consumes the declared operations as candidate vocabulary ([I-D.draft-mcguinness-oauth-mission]), consent composes the resource-authored material, and the declaration's digest rides the derived authority (the progressive companion's resource_declaration_digest, [I-D.draft-mcguinness-oauth-mission-progressive]). In AAuth, R3 can describe deterministic resource authorization independently of mission approval; the PS considers the resource request and mission context without turning the R3 declaration into a Mission Authority Set. Proposed RAR-type metadata ([I-D.draft-zehavi-oauth-rar-metadata]), a resource publishing the authorization_details types and fields it understands, is the OAuth- native descriptive surface the direction builds on. Both directions close the same loop: the meaning source's digest becomes part of the derived authority. A catalog-sourced capability pins its source_digest; a resource declaration pins r3_s256; in each case the Authority Set carries the version of the meaning it was derived under, and the point of use compares against the meaning in force. Meaning is not consulted at approval and assumed at enforcement; it is committed at approval and re-verified at use. The contract's failure mode is already normative in each home: a consumer that cannot resolve an operation's meaning, a constraint it cannot evaluate, a drifted capability definition, an unrecognized declaration, refuses rather than guesses. Meaning, like state, fails closed. The contract has a dual, and the two statements carry equal force. The resource owns what an action means; the Mission owns why it is happening and where the undertaking stands, and that context exists nowhere else in the stack. A resource evaluates each request at perfect local resolution and zero task resolution: it can price every consequence its ontology names and cannot see the undertaking the request belongs to. This is the context asymmetry, and a risk decision composes both sides of it: semantics without purpose prices every delete the same, and purpose without semantics cannot read the call. "Delete database" in isolation is indistinguishable from catastrophe. "Delete database" inside an approved migration whose copy steps already completed is a priced, checkable step. The only place that judgment is possible is where Decision and Execution Evidence join on the Mission's identity, because that join is the undertaking's recorded history and no resource-local view contains it. The runtime profile names the mechanism: sequence-aware evaluation over the undertaking's history is an optional decision input, guarded so that history informs a decision and never widens one ([I-D.draft-mcguinness-mission-runtime]). 9. Mission Roles and Components For each component: what it does, what it holds, and which document specifies it. What its compromise costs is the security model's subject ([I-D.draft-mcguinness-mission-security-model]). Agent (client): Proposes the Mission Intent and executes the task; in the OAuth binding it holds derived Mission-bound tokens; outside the trusted base and assumed compromisable ([I-D.draft-mcguinness-oauth-mission]). A deployment may authenticate concrete agent instances under the client-instance-assertion profile and its AI-agent profile ([I-D.draft-mcguinness-oauth-client-instance-assertion], [I-D.draft-mcguinness-oauth-ai-agent-instance]), which sharpens delegation chains, joins, and evidence attribution to instance granularity without touching the Mission model. Attestation-based client authentication and SPIFFE ([I-D.draft-ietf-oauth-attestation-based-client-auth], [I-D.draft-ietf-oauth-spiffe-client-auth]) can supply client- instance authentication and workload credentials beneath these profiles; they do not define the Mission actor, delegation, intent, lifecycle, or evidence semantics defined here. Subject: The user or system on whose behalf the Mission is approved, an (iss, sub) pair recorded immutably at approval (the OAuth binding). AAuth keeps the person's relationship and context at the PS and does not add this OAuth Subject tuple to the mission blob. Approver: The single accountable principal who approves the Mission; equal to the Subject for self-approval (the OAuth binding's Single Accountable Approver section). In AAuth, the wire approver value names the PS, not a portable person identifier; the person reviews and approves through that PS. Mission Issuer: Validates the Mission Intent, runs the approval event, records the Mission, and owns its state. The authority- bearing bindings host it: * OAuth Authorization Server: every derived token carries the mission claim, and issuance and refresh are gated on Mission state ([I-D.draft-mcguinness-oauth-mission]). * Mission Authority Server: the same record, anchors, and lifecycle without issuing tokens; the PDP joins ordinary credentials to the Mission at the point of use ([I-D.draft-mcguinness-mission-authority-server]). * UMA 2.0 Authorization Server (experimental sketch): the pushed Mission Intent rides UMA claims pushing, the resource owner's decision fills UMA's authorization assessment, and RPT issuance is gated on state ([I-D.draft-mcguinness-mission-uma]). The OAuth and standalone authority-bearing bindings also serve audience-scoped policy views, the authority-distribution artifact the runtime and MAS profiles define ([I-D.draft-mcguinness-mission-runtime], [I-D.draft-mcguinness-mission-authority-server]). The AAuth binding does not define such a view from the mission blob; deterministic resource authorization remains in scopes, resource tokens, Resource and Access Server policy, and optionally R3. AAuth Person Server: The controlling authority for the native Mission Context rather than an OAuth-style Mission Issuer. The mission blob is committed by AAuth's s256, and the PS gates PS- asserted issuance and federated brokering. It does not gate direct identity-based or resource-managed decisions ([I-D.draft-mcguinness-mission-aauth]). Resource Server: The protected resource. In the OAuth binding it enforces statelessly from the token and can check the mission claim (the OAuth binding's Resource Server Enforcement section); in the standalone binding the token carries no Mission signal, and Mission properties reach it only through the enforcement path. PEP and PDP: The PEP sits at the last controllable boundary before an action and obtains a permit for each consequential action; under mediated custody it, not the agent, holds the sender- constraint key. The PDP evaluates the action against the Mission's authority, constraints, actor chain, and current state, and fails closed ([I-D.draft-mcguinness-mission-runtime], [I-D.draft-mcguinness-mission-authzen]); in the standalone binding it also verifies the subject and client join (the MAS's Mission Join section). Agent harness: Hosts the agent; binds sessions, task graphs, queues, cached tool connections, and sub-agent handles to Mission state; establishes the environment with no unmediated path to mediated actions ([I-D.draft-mcguinness-mission-harness]). Orchestrator: Assigns each workflow step a reversibility class, records an unwind plan before dispatch, and compensates in-flight work when a Mission stops ([I-D.draft-mcguinness-mission-orchestration]). Transparency Service: An append-only SCITT log [RFC9943] that registers Mission evidence as Signed Statements and issues receipts verifiable offline ([I-D.draft-mcguinness-mission-audit]). Verifiers: Parties outside the deployment that check Mission facts without a token exchange: Mandate verifiers confirm what was approved ([I-D.draft-mcguinness-mission-mandate]); evidence consumers check consent, decision, and execution evidence against the anchors and receipts ([I-D.draft-mcguinness-oauth-mission-consent-evidence], [I-D.draft-mcguinness-mission-authzen]). The bindings converge on shared Mission Context capabilities, while authority carriage and enforcement remain binding-dependent: Subject Approver \ | \ approval event \ | +-------------------------------------------------------------+ | Mission Control Point | | +------------+ +------------+ +------------+ +------------+ | | | OAuth AS: | | Standalone | | AAuth PS: | | UMA 2.0 AS | | | | Mission- | | MAS: no | | Mission | | (sketch): | | | | bound | | tokens; | | Context; | | pushed | | | | tokens | | the PDP | | PS paths | | Intent; | | | | gated on | | joins to | | gated | | RPTs gated | | | | state | | Mission | | | | on state | | | +------------+ +------------+ +------------+ +------------+ | +-------|--------------|--------------|--------------|--------+ v v v v durable approved context and lifecycle; Authority Set and anchors where the binding defines them | | binding-specific state, context, | and authority surfaces v Agent ------> PEP ----------> PDP (harness, | <- permit - orchestrator) v Resource Server Grouped as planes rather than parts, the same components form the delegated-authority layer of Section 4, with the evidence surface crossing all of them: control Mission control point (OAuth AS | MAS | AAuth PS): approved context, lifecycle and gating; anchors and authority distribution where defined | ^ | state, authority | evidence v | enforcement PEP and PDP: a permit per consequential action, parameter binding, custody | ^ | mediated actions | outcomes v | execution harness, agent, orchestrator: sessions, sub-agents, queues, unwinding evidence Consent Evidence, decision and execution (crossing) evidence, Mission Receipts, the Mandate, audit transparency 9.1. The Actor Chain One material action splits across these roles, and the family keeps each distinct and attributable rather than collapsing them into one "agent" identity. The identifiers below are shown in the OAuth binding's instantiation; each binding carries the same distinctions in its own vocabulary, AAuth natively with its agent identifier, the Person at the PS, parent_agent for a parent-mediated sub-agent, and the call chain for a service hop ([I-D.draft-mcguinness-mission-aauth]): Principal: the Subject, the token sub (the OAuth binding). Accountable approver: the Approver, committed at the approval event (the OAuth binding). Intent generator: the shaper, with Shaping Evidence recording what it emitted ([I-D.draft-mcguinness-mission-shaping]). Authorizer: the Mission Issuer at issuance (the OAuth binding); the PDP per action ([I-D.draft-mcguinness-mission-runtime]). Approved agent: the OAuth client, client_id on every derived token (the OAuth binding). Executing delegate: the outermost act actor (the OAuth binding's Delegation section). Credential holder: the mediating PEP under mediated custody ([I-D.draft-mcguinness-mission-runtime]). Capability executor: the executor of the capability source binding ([I-D.draft-mcguinness-mission-capability-binding]). Downstream identity: the audience-scoped token and the cross-domain local subject ([I-D.draft-mcguinness-oauth-mission-cross-domain]). Attribution survives because no role is inferred from another: each is carried by its own construct, and the evidence layer records them together, in runtime evidence and the Mission Receipt ([I-D.draft-mcguinness-mission-runtime]), Consent Evidence, and the audit feed. The chain is actor lineage, not authority lineage. An act chain records who acted through whom; it does not carry what task was approved, how authority narrowed at each derivation, whether the task remains active, or which parameter constraints bind. Those travel in the Mission's own constructs: the anchors, the Authority Set, the lifecycle state, and Child Mission lineage ([I-D.draft-mcguinness-oauth-mission-child-delegation]). Reading an actor chain as authorization provenance is the gap the Mission's lineage exists to close. 9.2. Three Objects, Three Lifecycles Separately from the authorization flow's four objects (Section 4), a deployment that runs agents under both an agent identity system and this family governs three independently lifecycle-bearing objects. Each has its own owner, lifecycle, and revocation, and the model stays clean only while none absorbs another's job: Agent identity (who is acting): The logical agent and, where the instance profiles are deployed, the concrete instance (Section 9). Owned by the deployment's agent IAM, a registry or directory outside this family, and consumed as the client_id, the instance assertion, and verified instance claims. Agent Deployment (what is running): The approved behavioral version of the agent: its code, model, system prompt, tool allowlist, data scope, and runtime configuration. Owned by the deployment's change governance; a change to any of these is a new Agent Deployment, and which changes require re-approving standing Missions is policy that governance records. A Mission may be pinned to a named Agent Deployment where the deployment defines that control. This object is distinct from the Mission Deployment Profile (Section 14), which is the estate's published claims manifest, not a property of an agent. Mission (why the authority exists): This family's object: the approved task, its lifecycle, and, where the binding derives one, its Authority Set. An agent registry is a complementary dependency, not part of the Mission system; an A2A AgentCard directory ([A2A]) is one example source. Discovery contents are not authority for workload identity, authorization, or effective capabilities: a deployment applies local admission policy and independently verifies the relevant credential, resource metadata, and capability evidence. Where one exists, the Mission Issuer and the PDP consume a small, stable slice of it: * the agent identifier and its owner, * current status and revocation state, * the approved Agent Deployment, * eligibility bounds (what the registry permits the agent to be approved for, a derivation input, never a grant), and * risk tier. Registry state is a state source like any other: the consuming decision point treats it under the runtime profile's freshness discipline, with a declared staleness bound, failing closed when it cannot be established ([I-D.draft-mcguinness-mission-runtime]). Authorization composes conjunctively across the three lifecycles: a decision may depend on agent state, Mission state, and credential validity, and each gates independently. A valid credential never overrides a revoked agent or a non-active Mission, and a live agent under an active Mission still fails on an expired credential. The assurance levels add binding strength in the same order a deployment adds it: authority is issued to an authenticated client; instance assertion pins the concrete instance; sender-constraint keys pin possession; attested runtimes pin the execution environment; and an Agent Deployment pin holds the behavioral version (Section 13). The division of labor with agent IAM is one sentence: agent identity preserves who is acting, and the Mission preserves why their authority exists. The registry and workload identity authenticate an approved agent instance; the Mission and its derived Authority Set say what sanctioned work that instance carries; per-hop credentials narrow; the runtime layer enforces each action and parameter; and the evidence layer joins what was approved, decided, and done. 9.3. Swarm Execution: Multiplication, Not Delegation One composition of the three objects recurs often enough to name. A Mission pinned to an Agent Deployment through the OAuth binding's controls.agent_deployment ([I-D.draft-mcguinness-oauth-mission]), executed concurrently by N attested instances of that Deployment, is multiplication, not delegation: no act hop, no Child Mission, no attenuation chain, because authority never moves between principals. Late binding is attestation: an instance joins the work by authenticating as the pinned Deployment under the instance profiles ([I-D.draft-mcguinness-oauth-client-instance-assertion], [I-D.draft-mcguinness-oauth-ai-agent-instance]), not by receiving a credential from a peer. The invariant is class-grain authorization, instance-grain attribution: the class, the Agent Deployment projected as client_id, is an authorization subject, never an attribution subject, and attribution stays per-instance through the instance substrate, which forbids a sender-constraint key shared across a client's instances. The OAuth binding's controls.max_derivations is the explicit fan-out ceiling, and consumption bounds attach at Mission grain, so a swarm shares one budget ([I-D.draft-mcguinness-mission-metering]). The decision ladder: * The same principal exercising the same authority concurrently is the swarm: more attested instances of the pinned Deployment deriving under one Mission, no new construct. * A different principal acting inline is a delegated token with an act hop (the OAuth binding's Delegation Within a Mission section). * A durable sub-agent needing its own lifecycle, approval, or audit identity is a Child Mission ([I-D.draft-mcguinness-oauth-mission-child-delegation]). * Offline narrowing is attenuation ([I-D.draft-mcguinness-oauth-mission-attenuation]). 10. The Mission Substrate The binding-neutral contract is Mission Substrate Requirements ([I-D.draft-mcguinness-mission-substrate]): a contextual-governance kernel every binding provides (native reference and controller, actor binding, approved context, approval event, governance gate, bounded reliance, context propagation, and an ordered governance record) and eight optional capabilities each binding claims through its Mission Substrate Statement (Lifecycle-Gated Authorization, State-Observable, Structured Authority, Monotonic Derivation, Credential-Bound, Authorized Context Correlation, Independently Verifiable, and Portable Evidence). The bindings declare what they provide, each in its Mission Substrate Statement. The companion profiles named without "oauth" are defined against the binding-neutral contract and declare what they consume, each in a Mission Substrate section of its own; the runtime profile is the exemplar of that consumption declaration ([I-D.draft-mcguinness-mission-runtime]), and the remaining consumers align progressively. Where a companion consumes a concrete representation, it is today the OAuth binding's, the realization the family was first authored against; vocabulary ownership migrates to the substrate contract by touch ([I-D.draft-mcguinness-mission-substrate]). The remainder of this section documents that instantiation: eight primitives, each with its normative home and its consumers. Every sentence mirrors a rule the named profile states normatively. None of these OAuth-binding representations or stronger semantics is required verbatim by the binding-neutral kernel, although several instantiate mandatory kernel functions: the identifier and issuer realize the Mission Reference and Controller, the lifecycle realizes the governance gate, token validity participates in bounded reliance, and the audit horizon participates in the governance record. 10.1. The Primitives, at a Glance +==============+==================+==================+==============+ |Primitive |The OAuth | Normative home |Consumed by | | |realization | | | +==============+==================+==================+==============+ |Mission |An opaque, non- | The OAuth |Every | |Identifier and|reused identifier | binding: Mission |companion: | |Issuer |with at least 128 | Record, Mission |decisions, | | |bits of entropy | Identifier |evidence, | | |and no semantic | Format |harness | | |content, plus the | |bindings, the | | |issuer URL; | |state | | |together they | |surfaces, the | | |name exactly one | |audit | | |Mission. The | |statement | | |kernel requires | |subject, the | | |stability, non- | |Mandate | | |reassignment, and | | | | |unguessability, | | | | |not this syntax | | | +--------------+------------------+------------------+--------------+ |Lifecycle |The states of | The OAuth |Runtime per- | |state space |Section 4, open | binding (state |class re-check| | |to companion- | space, only- |(fail closed | | |defined states, | active); the |on staleness),| | |with the only- | status and |harness pause,| | |active rule, | runtime profiles |suppress, and | | |fail-safe | (freshness); |terminate, the| | |unrecognized | Status and |orchestrator's| | |states, and a | Signals |unwind | | |freshness source | (observation) |trigger, the | | |with a stated | |Mandate (state| | |staleness bound | |as of minting)| +--------------+------------------+------------------+--------------+ |Authority Set |Authorization- | The OAuth |Runtime and | |representation|details entries | binding: Mission |the AuthZEN | | |([RFC9396]), each | Authority, |binding, the | | |naming resource, | Subset Rule, |MAS, Expansion| | |actions, and | Common |and | | |constraints, | Constraints |Completion, | | |under the subset | |Child | | |rule (derived or | |Delegation and| | |delegated | |Offline | | |authority is | |Attenuation, | | |never broader) | |Consent | | |and the Common | |Evidence, the | | |Constraints | |Mandate | | |vocabulary | | | | |(registered names | | | | |with fixed subset | | | | |and intersection | | | | |rules) | | | +--------------+------------------+------------------+--------------+ |Integrity- |A committed | The OAuth |Consent | |anchor |object hashed | binding: |Evidence, | |envelope |over a typ- | Integrity |Shaping, the | | |domain-separated, | Anchors, |runtime layer | | |issuer-bound | Canonicalization |and AuthZEN | | |envelope with | Rules, |binding | | |fixed | Extensibility |(mission- | | |canonicalization | |policy-view), | | |and an algorithm- | |Orchestration,| | |prefixed encoding | |the Mandate, | | |a verifier | |Audit | | |recognizes or | |Transparency | | |rejects (unknown | | | | |prefixes refuse; | | | | |no downgrade); | | | | |the typ space is | | | | |the extension | | | | |point | | | +--------------+------------------+------------------+--------------+ |Issuer key |Signing keys | The OAuth |Verifiers of | |material |resolvable from | binding: Signing |Mission-bound | | |issuer; across a | and Key Rotation |credentials, | | |rotation each key | |Consent | | |identifier stays | |Evidence, the | | |resolvable while | |Mandate, the | | |artifacts signed | |signed state | | |under it remain | |surfaces, | | |within the audit | |Audit | | |horizon | |Transparency | +--------------+------------------+------------------+--------------+ |Audit horizon |The deployment- | The OAuth |Consent and | | |declared | binding: Mission |runtime | | |retention window: | Record |evidence and | | |at least the | |Audit | | |Mission's | |Transparency | | |lifetime plus a | |(retention), | | |declared post- | |the MAS | | |terminal period | |(record | | | | |retention), | | | | |the security | | | | |model's | | | | |retention | | | | |analysis | +--------------+------------------+------------------+--------------+ Table 1: Substrate primitives in their OAuth realization The anchors in the envelope row are *commitment anchors*, not enforcement proofs (Section 11): a narrowed-token Resource Server enforces the authority it receives rather than reconstructing authority from a hash of a full set it does not hold ([I-D.draft-mcguinness-mission-security-model]). 10.2. Token Classes "Mission-bound" is a specific claim. This document names three token shapes descriptively, so a weak one is not read as the strong one; the names below are this document's own, and the properties the strong class requires are the OAuth binding's: * a *Mission-referenced token* carries a Mission identifier only; * a *Mission-derived token* carries authority derived from an active Mission; and * a *Mission-bound token* is Mission-derived and additionally active-state gated, subset-constrained, and refresh-gated: in the contract's vocabulary, a credential covered by the binding's Lifecycle-Gated Authorization, Monotonic Derivation, and Credential-Bound claims, which the OAuth binding's conformance rule requires of the OAuth binding. Only the third earns the term: a mission claim alone is a reference, not Mission-bound authorization. The family reserves "Mission-bound" for that class, and a binding earns it through the capability claims of its Mission Substrate Statement, not by protocol lineage. 10.3. The Mission-Bound Credential A credential carrying the mission claim (id, issuer, authority_hash) and Mission-derived authorization details, issued only while the Mission is active. Home: the OAuth binding's Mission-Bound Access Tokens and The Mission Claim sections. This is the binding-dependent primitive, and it is exactly where the bindings split. The OAuth binding provides it. The standalone binding does not: the MAS's Mission Substrate section states that a MAS provides neither this credential nor issuance gating ([I-D.draft-mcguinness-mission-authority-server]). An AAuth auth token can carry the native {approver, s256} mission reference, but it does not carry the OAuth authority_hash or Mission-derived authorization details and therefore is Mission-referenced, not a Mission-bound credential in the strong sense defined above ([I-D.draft-mcguinness-mission-aauth]). For profiles that compose with it, the seam is the runtime profile's Mission binding establishment step ([I-D.draft-mcguinness-mission-runtime]): the credential carries the Mission reference where the binding provides one, and a binding without it supplies an externally established reference, verified under a join the binding defines, which the MAS profiles as its Mission Join. Offline Attenuation attenuates this credential and the token-carriage aspects of delegation ride it, so both require it; the companions that need a credential-to-Mission association (the runtime layer and the harness) route through the binding establishment step, which is what makes the standalone binding possible. The issuance-grant companion ([I-D.draft-mcguinness-oauth-mission-issuance-grant]) composes the two: the standalone Mission Issuer mints a Mission Issuance Grant that a consuming Authorization Server redeems for Mission-bound tokens, providing this primitive compositely. 10.4. Approval Fidelity For the portable-authority bindings, the approval event authenticates the Approver, establishes the Subject, derives and renders the Authority Set for consent, computes the anchors over the consented set, the approved Intent, and, where one was submitted, the authority proposal, and creates the record in active atomically with the decision. AAuth approval has different fidelity: the native propose, clarify, and approve interaction authenticates the parties, returns the approved mission blob and exact-byte s256 commitment, and creates an active Mission Context. It does not render or commit an OAuth Authority Set. Home: the OAuth binding's Mission Approval section. Consumed by Consent Evidence, which binds to this event, and by every downstream guarantee that assumes the anchors, the gating, and the record. 10.5. The Validity Model Five validity horizons govern reliance, each with its own setter, checker, and consequence; implementations most often err by conflating them: Token exp: set by the credential issuer and checked by every consumer of the token. In the OAuth binding it is capped by the Mission's expires_at. Past it the credential is dead and obtaining a new credential re-enters whatever issuance gate the binding and access mode provide. Mission state, and expires_at where defined: set by the controlling authority and checked at the binding's declared control points. In OAuth, the issuance gate, PDP, and state consumers enforce it. In AAuth, the PS enforces active or terminated at PS endpoints and on PS-asserted and federated paths; direct identity-based and resource-managed decisions have no PS state gate. fresh_until: set by the status responder; checked by status consumers. Past it a cached state report may not be relied on and is re-fetched. Permit window: set by the PDP; checked by the executing PEP. Past it the permit is void and a new decision is required. Action-approval freshness: set by the approval surface; checked by the PDP. Past it an action-bound approval no longer authorizes the action it named. The horizons compose by minimum: reliance at any moment requires every applicable horizon to be open, and no horizon substitutes for another. The horizons also give the deployment its freshness dial, and the TTL-only end of that dial is a first-class posture, not a fallback. A deployment that relies on lifetimes alone verifies with local cryptography and a clock: no state source, no freshness discipline, no availability coupling, and a worst-case exposure equal to the lifetime by construction. Where every fresh credential crosses a Mission-state decision point, this realizes the *lifecycle-gated* capability with reliance bounded by credential lifetime alone ([I-D.draft-mcguinness-mission-substrate]). It is not a property of every access mode: AAuth's PS-asserted and federated paths have that gate, while its direct modes do not. That posture is the right choice at action grain, where an artifact lives seconds to minutes and no revocation can land inside its window, and for short missions; the family's own short-lived artifacts (the permit, the cross-domain grant, the Join Assertion) already sit at this end. What a lifetime cannot do is suspend, complete, or kill now, which is the task-grain residue the Mission's state carries and which the *state-observable* capability reaches: an authenticated freshness source with a stated staleness bound, a named substrate capability a binding MAY provide beyond the kernel's bounded-reliance floor ([I-D.draft-mcguinness-mission-substrate]), and the one runtime enforcement requires ([I-D.draft-mcguinness-mission-runtime]). The two ends are one mechanism seen from opposite sides: a lifetime relocates the freshness check from the verification path to the issuance path, so every re-issuance is the policy re-check, which is the family's gates-new-derivation-only rule in its other reading. A deployment states where it sits on the dial through its bounded- revocation claim (Section 13.2): a TTL-only posture claims the lifetime as its bound only for paths whose re-issuance is gated, with no state-observable overlay. The runtime profile prices each position, source by source, in its state and freshness section ([I-D.draft-mcguinness-mission-runtime]). 10.6. The Binding Checklist For a new binding this checklist is now normatively stated by Mission Substrate Requirements ([I-D.draft-mcguinness-mission-substrate]); this section remains the informative summary, and the existing bindings remain authoritative for themselves. Another mission-based protocol supplies a Mission Context when it maps the following native capabilities explicitly: * a stable reference and controlling authority; * binding to the acting actor; * immutable approved context, or a verifiable commitment to it; * an explicit approval event; * an active-state gate at declared control points; * a stated reliance bound on every governed decision and artifact; * context propagation or decision correlation; and * an ordered governance or audit record. Structured authority, monotonic derivation, credential carriage, state observability, independent verification, and portable evidence are optional facets. A binding composes only the profiles whose required facets it provides. AAuth supplies the Mission Context capabilities in its own idiom but not a portable Authority Set or universal subset rule. The per-profile Mission Substrate sections remain the authoritative per-consumer statements of this interface. 10.7. Error Surfaces The OAuth and MAS profiles use three error surfaces, each owned once. OAuth endpoints return OAuth error codes, owned by the OAuth binding ([I-D.draft-mcguinness-oauth-mission]). Lifecycle surfaces, including management, return the status profile's JSON error body (error, error_description, nonce) ([I-D.draft-mcguinness-oauth-mission-status], [I-D.draft-mcguinness-oauth-mission-management]). MAS-native surfaces return the MAS error object, which adds error_reason and omits the nonce ([I-D.draft-mcguinness-mission-authority-server]). AuthZEN denial reasons are not a fourth surface: they ride the decision response ([I-D.draft-mcguinness-mission-authzen]). Where the same symbol exists as both an OAuth error code and a wire-body symbol (invalid_request), the envelope it arrives in disambiguates. The AAuth binding retains AAuth's own error surface. Its native management companion returns application/problem+json, preserves the base AAuth mission_terminated error on ordinary PS operations, and makes an absent reference indistinguishable from one the caller is not authorized to observe ([I-D.draft-mcguinness-mission-aauth-management]). Registration posture is likewise deliberate per artifact class: OAuth-facing parameters and media types register with IANA, evidence media types defer registration until cross-domain interoperability demands it, and each profile states which posture it takes. 11. The Authority Derivation Boundary Deriving the Authority Set from the Mission Intent is the semantic heart of the model and the one step the family deliberately does not standardize. The consequence is a trust boundary worth stating plainly: interoperability begins at the committed result, not at the Intent. A Mission Intent has no portable semantics; two conforming Authorization Servers can derive different Authority Sets from the same Intent, and audit can establish what was derived (against intent_hash and policy_version), never whether it was the right reading of the task. A deployment whose partners must reason about its derivations can publish a derivation policy identifier and test fixtures that pin Intent-to-Authority-Set outcomes, making the local policy reviewable even though it does not travel. Narrowing mode ([I-D.draft-mcguinness-oauth-mission]) is the checkable path: where the client supplies candidate authority, derivation is a subset of it and reproducible, which is the closest the family comes to portable derivation. The ceiling the derivation narrows against is itself a composition, not a single object. The derived Authority Set sits inside every bound on the task: the issuer's derivation policy, the ceiling of the Mission's established authority source (a delegating person's own authority, a workload's provisioned authority, or governed organizational policy: approval activates authority the source already holds and grants nothing beyond it, and the Approver needs authority to activate the source, not personal possession of its permissions), and, at enforcement time, the resource owner's and deployment's live policy at the decision point. The derivation step intersects the first two and commits the result; the runtime contract re-checks the rest on every action, which is why a permit is never implied by the Authority Set alone. A deployment adding further sources (a tenant boundary, an environment-specific floor) adds them as derivation-policy inputs or as decision-point policy, never as agent-negotiated widening. The derivation modes rank by how portable their result is: +==========================+=================================+ | Derivation mode | Portability status | +==========================+=================================+ | Client proposes concrete | Interoperable default | | authority; AS narrows | | +--------------------------+---------------------------------+ | AS derives from | Profile-specific | | structured Intent fields | | +--------------------------+---------------------------------+ | AS derives from free | Local, non-portable unless | | text | profiled | +--------------------------+---------------------------------+ | LLM-assisted derivation | Advisory unless a deterministic | | | policy commits the output | +--------------------------+---------------------------------+ Table 2 A deployment seeking interoperable authority uses the first; free- text and model-assisted derivation are local policy unless a profile pins them with a published policy identifier, version, and test fixtures. 12. Mission Deployment Patterns 12.1. Binding Security Architectures The bindings share Mission Context capabilities but are not one security system: each has its own authority representation, trust assumptions, cutoff behavior, and failure modes, and a deployment names its architecture, not only its binding. Three patterns cover the bindings: * *credential-carried authority*: the credential names the Mission, carries derived authority, and issuance is gated (the OAuth AS and UMA AS); * *PDP-joined*: credentials are ordinary and a join establishes the association at the decision point (the standalone MAS); and * *context-carried*: AAuth carries its native {approver, s256} reference while authority remains in resource scopes and policy. The PS gates PS-asserted and federated authorization, while direct identity-based and resource-managed decisions bypass the PS. The differences that decide a design: +==============+=========+==========+==============+================+ | Property |OAuth AS |MAS | AAuth PS | UMA AS | | | | | | (sketch) | +==============+=========+==========+==============+================+ | Credential |yes |no | native | yes (claim or | | carries the |(mission | | reference | introspection) | | Mission |claim) | | where | | | | | | supported | | +--------------+---------+----------+--------------+----------------+ | Issuance |yes |no (the | PS-asserted | yes | | gated on | |issuance | and | | | state | |grant | federated | | | | |restores | only | | | | |it per | | | | | |consuming | | | | | |AS) | | | +--------------+---------+----------+--------------+----------------+ | Runtime PDP |no |yes | required | no (per-use | | required for |(issuance|(runtime | for direct | introspection | | a kill |gate |is the | modes; PS- | cuts off) | | switch |exists; |only | path | | | |runtime |cutoff) | issuance | | | |tightens)| | has a | | | | | | bounded | | | | | | cutoff | | +--------------+---------+----------+--------------+----------------+ | Join |no |yes | no when the | no | | ambiguity | |(bounded | native | | | possible | |by join | reference | | | | |assurance)| is | | | | | | preserved; | | | | | | it can be | | | | | | ignored in | | | | | | direct | | | | | | modes | | +--------------+---------+----------+--------------+----------------+ | Revocation |token |runtime | auth-token | next | | latency |lifetime,|and status| lifetime on | introspection | | source |status, |only | PS paths; | | | |or | | no Mission | | | |runtime | | cutoff on | | | | | | direct | | | | | | paths | | +--------------+---------+----------+--------------+----------------+ | Offline |partial |limited | reference | JWT RPTs | | Mission |(claims |(join | integrity | partial; | | verification |verify; |assertion)| only; blob | opaque RPTs | | |state | | is private | none | | |does not)| | | | +--------------+---------+----------+--------------+----------------+ Table 3 The table is the one-page answer to a question the object-level framing invites: a MAS deployment does not provide AS-native semantics because both hold the same Mission, and a reader comparing deployments compares architectures first. The OAuth binding stacks two independent chokepoints. Issuance gating acts at the token layer: a revoked or expired Mission stops all further derivation and refresh, and short-lived tokens age out. Runtime enforcement acts at the action layer: each consequential action is re-checked against current state at the point of use. Issuance gating plus runtime enforcement is strictly stronger than either alone: a gap in PEP coverage is still bounded at the token layer, and an outstanding token is still stopped at the action layer. The AAuth binding has a narrower structural chokepoint. The Person Server refuses new PS-asserted issuance or federated brokering for a terminated Mission Context, bounding those paths by auth-token lifetime. Identity-based and resource-managed decisions do not cross that chokepoint. The AAuth binding defines no generic family runtime composition or independently resource-verifiable Authority Set ([I-D.draft-mcguinness-mission-aauth]). Per-action enforcement is budgeted, not blanket: only consequential actions are gated, the common-case decision is a local evaluation against a materialized policy view whose network cost is paid per freshness window, and only the high-consequence classes are required by the runtime profile to hold a synchronous gate (the runtime profile's deployment considerations, [I-D.draft-mcguinness-mission-runtime]). The composition is an overlay, not a substrate swap: a deployment mediates the paths where the high-consequence classes live and lets every other resource ride lifetime-bounded reliance (Section 13), token lifetimes sized to the tolerated staleness, with no state evaluation at the resource. The standalone mode trades the token-layer kill switch for zero Authorization Server changes. A MAS creates, approves, and serves Missions while tokens remain ordinary; the PDP joins credentials to Missions, and the MAS is the freshness source. The cost is structural: no mission claim travels, revoking a Mission stops nothing at the token layer, and enforcement rests entirely on PEP coverage, so a token exercised outside that coverage is ungoverned (the MAS's Limitations section). The path to a token- layer chokepoint is the OAuth binding, where the estate's AS can change; the record, anchors, and lifecycle carry over unchanged. That is a move between peer architectures, not an upgrade from a lesser one: the MAS remains a peer binding, not a staging area (its own document's framing). Between the two sits the issuance join ([I-D.draft-mcguinness-oauth-mission-issuance-grant]): the MAS remains the Mission Issuer while estate Authorization Servers redeem Mission Issuance Grants for Mission-bound, state-gated tokens, restoring the token-layer chokepoint without moving approval. 12.2. Entry Ramps by Estate Which chokepoint a deployment builds first is decided by the estate it already runs, not by preference. The OAuth binding's issuance ramp assumes an Authorization Server that supports pushed authorization requests, rich authorization requests, and JWT access tokens; the standalone ramp assumes none of that and trades it for PEP coverage. By starting condition: +=============+==========+=====================================================+ |Estate |Entry ramp|Day-one delta | |starting | | | |condition | | | +=============+==========+=====================================================+ |AS |The OAuth |AS adds intent intake, derivation, approval, record, | |changeable; |binding |and gating; scope-only Resource Servers and clients | |PAR, RAR, and| |continue unchanged | |JWT access | | | |tokens in | | | |place | | | +-------------+----------+-----------------------------------------------------+ |AS |MAS first;|A MAS beside the AS; nothing else changes | |changeable; |the OAuth | | |RAR absent or|binding | | |tokens opaque|once the | | | |AS gains | | | |the token | | | |plane (a | | | |peer move,| | | |not an | | | |upgrade) | | +-------------+----------+-----------------------------------------------------+ |AS cannot |Standalone|Records and approvals first; enforcement arrives with| |change |MAS, phase|PEP/PDP coverage | |(shared, |by phase | | |third-party, | | | |SaaS) | | | +-------------+----------+-----------------------------------------------------+ |Many |MAS as |Each AS adds grant redemption only | |Authorization|estate |([I-D.draft-mcguinness-oauth-mission-issuance-grant])| |Servers, one |control | | |governance |plane; | | |point |issuance | | | |join per | | | |consuming | | | |AS | | +-------------+----------+-----------------------------------------------------+ |No PEP/PDP |The OAuth |Lifetime-bounded reliance (short tokens, gated | |over |binding |refresh); the runtime overlay added later, where the | |consequential|where the |high-consequence classes live | |paths |AS allows;| | | |runtime | | | |layer next| | +-------------+----------+-----------------------------------------------------+ Table 4 Every row shares the record, anchors, and lifecycle, so a ramp is an entry point, not a fork: Missions carry unchanged from any row to the rows a deployment adopts later. One ramp cuts across the rows: the *short mission*. A Mission whose expires_at sits minutes out, run in records mode with lifetime- bounded reliance, is a durable approval record with TTL-grade operational cost: audit, anchors, and bounded exposure with no state surface anywhere (Section 10.5). A deployment can adopt the family this way first, per task, and add state surfaces only where missions grow long enough to need suspend, complete, or kill-now. In sequence, the standalone mode runs submit, poll, approve, join, permit: Client MAS Approver PEP/PDP | | | | | 1 submit Intent | | | |------------------->| | | | 2 202 pending | | | |<-------------------| | | | | 3 disclose | | | |----------------->| | | | 4 approve | | | |<-----------------| | | | Mission active | | | 5 poll | | | |------------------->| | | | 6 approved, | | | | mission_id | | | |<-------------------| | | | 7 action, token, | | | | Mission ref | | | |--------------------------------------------------->| | | 8 signed status: | | | | active | | | |<------------------------------| | |------------------------------>| | | | 9 join; | | | | evaluate | | 10 permit | | | |<---------------------------------------------------| The token in step 7 is an ordinary OAuth token from the unchanged AS; steps 8 through 10 are the Mission Join and the runtime decision (the MAS's Mission Join section), and the MAS's staged walkthrough of the same flow is its end-to-end appendix ([I-D.draft-mcguinness-mission-authority-server]). The quarantine pattern removes a leg of the injection-to-exfiltration chain instead of gating it: no single Mission ever holds untrusted input and an egress path at once. * Work that ingests untrusted content runs under a Mission with no external-communication or external-commitment authority. * Work that communicates externally runs under a separate Mission whose inputs are the quarantined product. * The crossing between them, a human review or a deterministic transformation, is recorded as evidence, under the harness taint policy ([I-D.draft-mcguinness-mission-harness]) and, where claimed, the runtime profile's trifecta containment ([I-D.draft-mcguinness-mission-runtime]). The quarantine pattern is the deployment-shaped case of a general rule that holds for every work product one Mission passes to another. A work product crossing into a receiving Mission is input, not authority: the receiving Mission re-evaluates any proposed action under its own Authority Set, and the producing Mission's authority does not transfer through the artifact by copying, referencing, embedding, or communicating it. The Mission Work Products companion ([I-D.draft-mcguinness-oauth-mission-work-products]) is the normative home of this rule and defines the provenance object that attributes an artifact without granting anything. Ingesting a work product is an added conjunctive gate at the receiving Mission's boundary: it composes with the three objects' independent gates and does not nest inside them, so Actor, Agent Deployment, and Mission stay a gating pipeline, not a containment hierarchy (Section 9.2). Where the separation must hold within one Mission, the metering profile's exclusivity control ([I-D.draft-mcguinness-mission-metering]) latches read-and-egress apart under a single approval. The *standing-agent pattern* governs the agent whose work never ends. The agent stands; the authority cycles: the standing thing is a charter, a Mission with a consented authority ceiling and drawdown policy ([I-D.draft-mcguinness-oauth-mission-progressive], experimental), and the working thing is the bounded Mission each unit of work draws under it, as an in-ceiling successor or a policy- approved Child Mission ([I-D.draft-mcguinness-oauth-mission-child-delegation]), each expiring and discharging as its unit completes ([I-D.draft-mcguinness-oauth-mission-status]). The progressive profile's prohibited set keeps the high-consequence classes on a fresh human approval inside the ceiling, and its Ceiling Review bounds the chain in time with an evidence-rendering renewal. Without the progressive profile the same pattern runs as ordinary, freshly approved unit Missions with deferred approval ([I-D.draft-mcguinness-oauth-mission-approval]) absorbing the volume: the experimental profile changes the unit economics, not the governance shape. 12.3. Comparison to a Conventional Stack A skeptical reading of this family asks why Rich Authorization Requests [RFC9396], short-lived tokens, and an AuthZEN PDP holding policy and session state server-side would not suffice. Steelmanned first: RAR supplies structured authorization data an Authorization Server renders into an itemized approval experience; RAR itself guarantees neither approval fidelity nor a consent UI. A short token lifetime bounds revocation only when every issuance, refresh, and exchange path re-evaluates current grant or session state; absent that discipline a fresh short token keeps issuing against stale state regardless of lifetime, the dependency the Validity Model already states (Section 10.5). AuthZEN specifies a decision API, not a global PDP, a durable session store, complete PEP placement, or a state model; a deployment supplies those properties in either design. Inside one administrative domain, a conventional stack (structured request data, an Authorization Server's consent or grant record, short credentials, and a stateful PDP) implements durable task state, fan-out joins, persistent narrowing, and audit locally. Five places mark where that local composition meets what this family standardizes: 1. *Durable task semantics across tokens and restarts.* OAuth grants, refresh families, or PDP records can outlive a token. Mission standardizes an independently addressable, lifecycle- bearing approved task with anchors consistently interpreted by the Authorization Server, PDP, agents, audiences, and evidence producers (the OAuth binding's Why a New Object and Relationship to Other Authorization Objects sections, [I-D.draft-mcguinness-oauth-mission]); it does not make persistence newly possible. 2. *Multi-credential, multi-actor join.* A deployment can invent a transaction, grant, or workflow identifier shared across credentials. Mission gives that join stable approved-task semantics, binds it to authority, and carries it through delegation and fan-out outside one private PDP schema (Section 9.3). 3. *A second trust domain.* A partner can call the origin PDP, share state, or federate policy. The trade is synchronous coupling, availability, and disclosure. Cross-Domain Projection offers bounded local credentials and common anchors while accepting local-token revocation latency (the Project verb). It is a portability choice, not the only possible design. 4. *Approval as a first-class record.* A local consent or grant database plus versioned decision logs can preserve what was approved. Mission's value is a standardized immutable snapshot, integrity anchors, and one reference portable evidence can cite (the OAuth binding's Why a New Object section, [I-D.draft-mcguinness-oauth-mission]; the Prove verb). 5. *Persistent narrowing.* A stateful Authorization Server or PDP can store reduced entitlements and consult them at issuance. Mission standardizes monotonic subset semantics across issuance, delegation, attenuation, and cross-domain projections, auditable across components (Section 8). +=============+================+===================+===============+ | Requirement | Conventional | Mission | Illustrative | | | OAuth+PDP | standardization | added Mission | | | realization | | cost | +=============+================+===================+===============+ | Durable | Grants, | An addressable, | Durable- | | task | refresh | lifecycle-bearing | object and | | semantics | families, or | approved task | lifecycle | | | PDP records | with anchors | storage | | | outlive the | consistently | | | | token | interpreted | | | | | across components | | +-------------+----------------+-------------------+---------------+ | Multi- | A deployment- | A stable | New claims | | credential | invented | approved-task | and endpoints | | join | transaction, | reference bound | | | | grant, or | to authority, | | | | workflow | carried through | | | | identifier | delegation and | | | | | fan-out | | +-------------+----------------+-------------------+---------------+ | Second | The partner | Bounded local | State | | trust | calls the | credentials and | consistency | | domain | origin PDP, | common anchors | and | | | shares state, | carried by | distribution; | | | or federates | projection | privacy and | | | policy | | correlation | | | | | surface | +-------------+----------------+-------------------+---------------+ | Approval as | A consent or | A standardized | Evidence | | a record | grant database | immutable | operations | | | plus versioned | snapshot with | | | | decision logs | integrity anchors | | | | | and one portable | | | | | reference | | +-------------+----------------+-------------------+---------------+ | Persistent | A stateful | Monotonic subset | AS or MAS | | narrowing | Authorization | semantics | integration; | | | Server or PDP | enforced across | ecosystem | | | stores reduced | issuance, | adoption | | | entitlements | delegation, | | | | and consults | attenuation, and | | | | them at | cross-domain | | | | issuance | projections | | +-------------+----------------+-------------------+---------------+ Table 5 Past these crossovers, a conventional deployment often accumulates a durable task record, a stable join key, lifecycle checks, narrowing rules, and audit correlations. Mission standardizes that recurring shape across bindings and trust domains; it does not claim local policy systems cannot implement equivalent outcomes. 12.4. A Worked Composition This non-normative example composes an Action-Enforced deployment from four providers, none of which is the OAuth binding, to show that the substrate contract ([I-D.draft-mcguinness-mission-substrate]) carries the weight: an AAuth agent acts under a PS-governed Mission and calls a payment API whose authority vocabulary is owned by the resource. Four components publish provider claims: +============+=======================+=========================+ | Provider | Capability supplied | Scope | +============+=======================+=========================+ | AAuth | Contextual-governance | PS permission decisions | | Person | kernel; Lifecycle- | and PS-brokered | | Server | Gated Authorization | issuance | +------------+-----------------------+-------------------------+ | AAuth | State-Observable | The payment PDP, | | Mission | | maximum staleness five | | Management | | seconds | +------------+-----------------------+-------------------------+ | Payment | Structured Authority | Payment API actions and | | policy | | constraints under the | | adapter | | payment policy's own | | | | versioned vocabulary | +------------+-----------------------+-------------------------+ | Payment | Authorized Context | The schedule_payment | | gateway | Correlation | and release_payment | | PEP/PDP | | routes | +------------+-----------------------+-------------------------+ Table 6: Provider claims in the worked composition Action-time enforcement and decision evidence are supplied by the runtime profile and its evidence companion at the gateway ([I-D.draft-mcguinness-mission-runtime]); they consume the capability claims above as decision inputs. The AAuth rows come from the binding's own published Mission Substrate Statement: the lifecycle claim from the base Statement, and the state claim under its Mission Management activation condition, each with the Statement's temporal and failure elements ([I-D.draft-mcguinness-mission-aauth]). The payment policy adapter's and the gateway's claims remain the deployment's own, stated as deployment-local provider claims; nothing here implies every provider claim becomes binding-owned. The deployment declaration names the four providers, the two routes, and the consequence class; no machine-readable declaration format is defined (the Mission Deployment Profile's schema remains reserved future work, Section 14), and the declaration is ordinary deployment documentation. The deployment runs PS-asserted access. Every resource token the gateway accepts is PS-issued or PS-brokered and carries the signed mission_s256 reference, the protected propagation path; identity- based and resource-managed access are out of scope here, because those paths are not PS-gated and may ignore the reference. The gateway's join validates the carrying artifact's issuer (the Person Server), its audience (the payment API), the actor binding (the agent's key, proven on the request), and the request binding, before joining the PS evidence, the Actor proof, the request, and the adapter's output; the join is scoped to the two named routes with a lifetime no longer than the state observation's declared freshness, and a missing or conflicting input fails closed. The composition succeeds with these results and limits: +=============+============+==================================+ | Requirement | Provider | Result and material limit | +=============+============+==================================+ | Kernel | AAuth | Satisfied; native private | | | Person | Mission context and lifecycle | | | Server | | +-------------+------------+----------------------------------+ | Current | AAuth | Satisfied; five-second staleness | | state | Mission | within the profile's declared | | | Management | maximum | +-------------+------------+----------------------------------+ | Structured | Payment | Satisfied only inside the | | authority | policy | payment vocabulary; no cross- | | | adapter | resource claim | +-------------+------------+----------------------------------+ | Authorized | Payment | Satisfied; the gateway validates | | join | gateway | PS provenance, Actor proof, the | | | | request, and the adapter's | | | | output before joining them | +-------------+------------+----------------------------------+ | Action-time | Runtime | Satisfied for the two named | | enforcement | profile at | routes; direct payment-API | | | the | routes are prohibited or | | | gateway | declared uncovered | +-------------+------------+----------------------------------+ | Evidence | Evidence | Satisfied through the decision; | | | companion | approval-to-effect completeness | | | at the | additionally requires execution | | | gateway | evidence | +-------------+------------+----------------------------------+ Table 7: Composition result Two classifications make the example honest. The payment authority's fresh decision is decide_anew in the substrate's transition classification, never an attenuation of AAuth authority across vocabularies; and the AAuth Mission context never becomes a Rich Authorization Request object. AAuth supplies work continuity, the payment authority decides permission in its own vocabulary, and the gateway is the scoped joining and enforcement authority. The same composition fails when any of the following holds: the state source is disabled with no equivalent fresh local read; the adapter publishes descriptive strings rather than machine-evaluable semantics; the gateway accepts a Mission reference from the agent without validated provenance (context splicing); the state source's staleness exceeds the declared maximum; a direct route bypasses the gateway; the gateway accepts the reference on an identity-based or resource-managed request; or the payment-vocabulary claim is generalized to another resource's vocabulary. 13. Mission Assurance Levels Two questions get asked of a Mission deployment: what to deploy for a goal, and what guarantee it has earned. They share one progression, so this document states a single set of levels, each carrying both facets, the document set and the proof obligations, and names them so a deployment, a procurement, or a review can cite one level. The levels are guidance, not a conformance class; every companion is optional and states its own scoped conformance. Because the family's strongest properties are deployment properties, not protocol properties (complete PEP placement, a trusted freshness source, and credential custody are things a deployment does, not things a token proves), a level is a claim, verifiable in the sense the runtime profile fixes ([I-D.draft-mcguinness-mission-runtime]), not a label: a deployment states the highest level it has earned in its Enforcement Scope Statement, and a consumer treats an unstated or unproven level as not claimed. The levels build on one another: a deployment adopts recording and governing the approved task (Baseline Issuance), then per-action enforcement (Runtime-Enforced), then full agent safety (Governed and High-Assurance Agent), advancing to the level its risk warrants and stopping there. A level is a dependency bundle: which documents a deployment runs, in adoption order. What a deployment can prove is the orthogonal claims axis (Section 13.2), and the proof obligations noted with each level below are the claims that become available at that level, not properties the level name itself asserts; the claims, not the level, are what a relying party compares. The levels are one axis; the *binding* is an orthogonal one. The authority-bearing bindings name their level separately from their binding. An AAuth deployment instead reports the Mission Context capabilities and resource access modes it actually uses; selecting the AAuth binding does not by itself satisfy structured-authority, subset, portable-evidence, or runtime proof obligations. The standalone MAS binding is the case that matters most: it provides the Mission record, lifecycle, and authority but no Mission-bound credential and no issuance gating, so under it the kill switch is the runtime layer alone, not the token gate, and a deployment states that. Binding is not a level. The AAuth distinction is access-mode dependent: PS-asserted and federated access have a PS lifecycle gate for new authorization; identity-based and resource-managed access do not. Its native auth token is Mission-referenced, not the strong Mission-bound credential defined by the OAuth binding. The levels, cumulative: *Baseline Issuance*: the approved, anchored Mission record and its lifecycle: authority derived and committed at the approval event with the integrity anchors (the OAuth binding). Where a structured-authority binding issues Mission-bound credentials, issuance is bounded by the subset rule and gated on Mission state, which grants task-bound, auditable authority and a possession-independent kill switch at the issuance gate; it grants no per-action control, and outstanding tokens run to their own expiry. Sized deliberately, that expiry is the level's revocation bound: *lifetime-bounded reliance*, access-token lifetimes no longer than the deployment's tolerated staleness ([I-D.draft-mcguinness-oauth-mission-status]), gives a quantified cutoff, revocation within one token lifetime, with no Resource Server changes and no status traffic; expiry is a state check performed by the clock. Revocation latency is a number, not a level: what the higher levels add is per-action enforcement, parameter binding, and evidence, not a faster clock. Under a binding without credential-carried authority (the standalone MAS), Baseline grants governance and audit; no kill switch of any kind exists until a freshness surface (the half- step) and runtime enforcement (the next level) arrive, and a deployment states that; the issuance join ([I-D.draft-mcguinness-oauth-mission-issuance-grant]) restores gated issuance at each consuming Authorization Server, and Baseline with it. The nearest AAuth comparison, stated as capabilities rather than a level: native approval, exact-byte commitment, active or terminated state, and the ordered mission log. The possession- independent issuance cutoff applies only to PS-asserted and federated requests whose resource token carries the validated Mission Reference; no Authority Set or subset proof is implied. Proof obligations: the anchored approval and, where credentials are issued, the subset rule. A deployment that adds only a freshness surface, Mission Status or introspection with a published staleness bound ([I-D.draft-mcguinness-oauth-mission-status]), gains state-aware reliance, a revocation cutoff within that bound, without per- action enforcement: a half-step into the next level, not a level of its own. A deployment demonstrates Baseline Issuance with the following minimum test set, scoped by the capabilities its Mission Substrate Statement claims, so a standalone MAS is never asked to prove a credential behavior it does not claim. The executable realization is planned in the family's conformance suite; no executable rows exist yet. Kernel, every Baseline deployment: 1. approval creates an active Mission; 2. an authenticated terminal transition takes effect in the Controller's own subsequent decisions; and 3. the observed residual after a transition does not exceed the published reliance bound. Credential-Bound, where claimed: 1. no credential outlives the Mission's effective expiry; and 2. a credential from another Mission cannot be substituted (the reference and its Controller namespace bind together). Lifecycle-Gated Authorization, where claimed and limited to the operations named in the claim: 1. an active Mission yields a positive result for a claimed operation within policy; 2. a terminal transition prevents every claimed operation; and 3. for every lifecycle-gated operation in the claimed scope, unavailable, invalid, stale, or unknown state prevents a positive result (the forward-compatibility rule: only active permits reliance, and lost state never fails open). The OAuth binding additionally demonstrates: 1. refresh while the Mission is active succeeds within policy and is refused after a terminal transition; and 2. a bare client-supplied Mission identifier creates no binding: the grant, never the identifier, determines the Mission. *Runtime-Enforced*: adds a PEP/PDP decision on every consequential action, a trusted state source with a published staleness bound, parameter binding, and runtime evidence ([I-D.draft-mcguinness-mission-runtime] and its AuthZEN binding). Grants per-action enforcement and revocation bounded, for gated classes, by the staleness bound plus the permit window plus the class's execution bound, and by token lifetime for ungated paths. This is the smallest deployment that turns a Mission from governed issuance into action-time defense, and every normative dependency it needs is ratified; it is a substantial build, not a wedge, and a deployment sizes the effort from the runtime profile's conformance section rather than from this level's one-line summary. Proof obligations: PEP-placement completeness and the declared freshness source and bound. Documents: Baseline plus runtime, its AuthZEN binding, and a freshness source. *Governed Agent* (recommended for AI agents): adds Consent Evidence and the harness, growing with Child Delegation, Expansion, Orchestration, and Discovery (experimental, with Progressive) as needed. Grants consent-rendering evidence and session-continuity discipline. Documents: Runtime-Enforced plus consent-evidence and the harness. *High-Assurance Agent*: adds the guarantees that resist a compromised agent. Two named claims live at this level, each with proof obligations the runtime profile fixes. *Agent-compromise-resistant enforcement*: mediated (gateway) credential custody, a declared-and-audited path scope, action- bound approval for the high-consequence classes, an active- freshness state source, and approval disclosures rendered by a component isolated from the agent, so a compromised agent cannot unilaterally take a high-consequence action for which it does not hold a mediated credential. *Trifecta containment*: least exposure, the harness taint rule enforced as a mandatory requirement of the harness profile, with pre-consented egress to Approver-named destinations as its one carve-out, and full mediation of the external-communication and external-commitment classes with the egress-channel enumeration, so an injected agent cannot egress on the strength of untrusted content alone. These are named high bars, never implied by basic adoption; a deployment can bind its Enforcement Scope Statement to execution- environment attestation so a claim is technical rather than organizational ([I-D.draft-mcguinness-mission-runtime], [I-D.draft-mcguinness-mission-harness]). Read as an adoption ladder, each level makes a broader class of agent work defensible to grant. The mapping is informative: the action classes are the runtime profile's ([I-D.draft-mcguinness-mission-runtime]), resource policy remains authoritative for its own objects, and what a level grants varies with the binding; the Mission Deployment Profile (Section 14) is where a deployment states its own mediated_action_classes and exclusions. +==================+===========================================+ | Level | What a deployment can defensibly grant | +==================+===========================================+ | Baseline | Consequential reads that are attributable | | Issuance | and killable at the issuance gate: the | | | governed pilot | +------------------+-------------------------------------------+ | Runtime-Enforced | Consequential writes inside approved | | | bounds, reversible under the deployment's | | | own authority | +------------------+-------------------------------------------+ | Governed Agent | Unattended operation and delegation, with | | | approval evidence behind every grant | +------------------+-------------------------------------------+ | High-Assurance | The high-consequence classes | | Agent | ([I-D.draft-mcguinness-mission-runtime]), | | | under mediated custody and action-bound | | | approval | +------------------+-------------------------------------------+ Table 8 Every level above Baseline Issuance also carries the cross-cutting obligations its mechanisms imply: * operation-profile normalization where duration or parameter digests are metered ([I-D.draft-mcguinness-mission-metering], [I-D.draft-mcguinness-mission-authzen]); * evidence retention for the audit horizon; and * a registration schedule where audit transparency is run ([I-D.draft-mcguinness-mission-audit]). The evidence levels are accountability, not prevention: they make what was recorded tamper-evident, not what was perceived true or what was never recorded present. 13.1. Composed Kill-Switch Reality "Baseline" and "Runtime-Enforced" name two different things that share spelling. Above, they name a level a deployment adopts. The containment profile uses the same two words for a property a consumer obtains per action class ([I-D.draft-mcguinness-oauth-mission-containment], Section "Containment Properties"). The two are not 1:1: a Runtime- Enforced deployment can still provide only the Baseline property for a class its Enforcement Scope Statement leaves lifecycle-gated-only, because the property requires a state-observable substrate per class, not per deployment ([I-D.draft-mcguinness-mission-runtime]). The table below names the property in its own column, apart from the rung; a row can carry a Runtime-Enforced rung and a Baseline property together without contradiction. The table composes a deployment that runs the containment profile with a rung and a binding. A rung and a binding alone confer neither containment property: containment is an overlay a deployment separately adopts ([I-D.draft-mcguinness-oauth-mission-containment]). "Stops at commit" names what a contain transition's own state-version commit reaches immediately ([I-D.draft-mcguinness-oauth-mission-containment], Section "The Contain Transition"); "runs to its own bound" names the residual the transition does not reach. Every cell is informative and carries no RFC 2119 language of its own; the cited normative profile controls wherever a cell and its citation appear to differ. +========+============+=====================================================+==================================================+=====================================================+ |Rung |Binding |Property |Stops at commit |Runs to its own bound | +========+============+=====================================================+==================================================+=====================================================+ |Baseline|OAuth |Baseline, a new-derivation kill |New derivation, delegation, cross-domain |Tokens already issued, to exp; a cross-domain | |Issuance|binding, |([I-D.draft-mcguinness-oauth-mission-containment], |projection, and offline attenuation roots minted |projection grant already redeemed and an offline | | |structured- |Section "Containment Properties") |after the transition |attenuation root already minted before the | | |authority | |([I-D.draft-mcguinness-oauth-mission-containment],|transition, each to its own lifetime or del_max_depth| | | | |Section "Derivation Gating") |([I-D.draft-mcguinness-oauth-mission-containment], | | | | | |Section "The Materialized-Capability Residual"); a | | | | | |consequential read under the token-lifetime default, | | | | | |the same bound | | | | | |([I-D.draft-mcguinness-mission-runtime]) | +--------+------------+-----------------------------------------------------+--------------------------------------------------+-----------------------------------------------------+ |Baseline|Standalone |Neither; the runtime layer is the only cutoff, and it|Nothing at the resource; the transition commits |Every action, to whatever native credential, session,| |Issuance|MAS, no |is absent at this rung |and is visible on the Mission Status Response and |or resource-local bound the resource enforces on its | | |credential- | |the introspection projection |own, if any, until a freshness half-step arrives or | | |carried | |([I-D.draft-mcguinness-oauth-mission-containment],|the issuance join restores a gate | | |authority | |Section "Visibility") |([I-D.draft-mcguinness-oauth-mission-issuance-grant])| +--------+------------+-----------------------------------------------------+--------------------------------------------------+-----------------------------------------------------+ |Runtime-|Any binding,|Runtime-Enforced for that class |The contained capability, denied at the class's |Ungated paths, bounded by token lifetime alone | |Enforced|a class |([I-D.draft-mcguinness-oauth-mission-containment], |next gated action once the source reflects the | | | |using a |Section "Containment Properties"): full Status or |overlay, within the staleness bound plus the | | | |containment-|introspection carrying containment_version, or |permit window plus the class's execution bound | | | |aware state |Signals carrying the overlay change; a fresh |([I-D.draft-mcguinness-mission-runtime]) | | | |source |derivation narrows what it mints and can shorten the | | | | |within its |residual, but it checks nothing at action time, so it| | | | |published |carries Baseline, not Runtime-Enforced | | | | |bound |([I-D.draft-mcguinness-oauth-mission-containment], | | | | | |Section "Containment Properties"); a class checked | | | | | |only against an active-but-not-containment-aware | | | | | |source, gated only by fresh derivation, or left | | | | | |lifecycle-gated-only, gets Baseline only regardless | | | | | |of rung ([I-D.draft-mcguinness-mission-runtime]) | | | +--------+------------+-----------------------------------------------------+--------------------------------------------------+-----------------------------------------------------+ |Baseline|MAS as |Baseline, from Derivation Gating at the Mission |New grant minting only: the Mission Issuer's |An outstanding grant redeems once, to its own maximum| |Issuance|estate |Issuer |Derivation Gating evaluates the Effective |lifetime of 300 seconds, at any consuming AS whose | | |control |([I-D.draft-mcguinness-oauth-mission-containment], |Authority Set, so a grant minted after the |redemption check is active-only rather than | | |plane, |Section "Derivation Gating"); the consuming AS's |transition excludes contained authority |containment-aware | | |issuance |redemption and refresh checks are the issuance |([I-D.draft-mcguinness-oauth-mission-containment],|([I-D.draft-mcguinness-oauth-mission-issuance-grant],| | |join at each|profile's ordinary active gate, not containment-aware|Section "Derivation Gating") |Section "Redemption") | | |consuming AS|on their own, since a contained Mission stays active,| | | | | |unless the consuming AS separately retrieves and | | | | | |applies the containment overlay or current Effective | | | | | |Authority Set | | | | | |([I-D.draft-mcguinness-oauth-mission-issuance-grant],| | | | | |Section "Redemption") | | | +--------+------------+-----------------------------------------------------+--------------------------------------------------+-----------------------------------------------------+ Table 9 None of this closes the conforming Baseline residual on a path or for a class no containment-aware action-time gate reaches. For a class a Runtime-Enforced action-time gate reaches instead, a pre-transition credential does not run to its own bound at all. The binding determines the artifact and its cutoff where the residual does persist: an ungated standalone-MAS path, for instance, runs to whatever native credential, session, or resource-local bound the resource enforces on its own, if any, or to none, not to a token lifetime. What changes row to row is which gate, if any, reaches a class before its own bound, and how tight that bound is. 13.2. Assurance Claims The levels are the adoption ladder: what a deployment has built, in the order deployments build it. What a deployment can prove is an orthogonal axis, claimed as named *assurance claims*, each with a proof obligation an existing profile fixes, and listed in the Deployment Profile (Section 14) rather than implied by a level: * *Approved-record integrity*: the anchors reproduce from the record alone (the OAuth binding's integrity anchors). * *Bounded revocation latency*: the published staleness bound plus the permit window and the class's execution bound ([I-D.draft-mcguinness-mission-runtime]). * *Action-time enforcement*: PEP coverage for the Enforcement Scope Statement's mediated set, and nothing outside it. * *Parameter-bound enforcement*: permits bound to concrete parameters for the classes claimed. * *Transaction-grade execution*: the runtime profile's transaction- assurance tier machinery (single-use permits, leases, outcome reconciliation) for the classes claimed ([I-D.draft-mcguinness-mission-runtime]). * *Compromise-resistant custody* and *trifecta containment*: the two named High-Assurance claims, unchanged (Section 13). Two deployments at the same level under different bindings can hold different claims; the MAS modes are the worked case ([I-D.draft-mcguinness-mission-authority-server]). The claims, not the level, are what a relying party compares. 13.3. Mission Binding Properties Whether an operation is bound to a Mission is not one question but three independent ones: who selected and attached the Mission to this work item (attachment provenance), whether the acting credential's authority was issued and bounded for the Mission (credential binding), and whether one authenticated permit covers these exact operation inputs (action binding). The dimensions are independent: a native Mission-bound token has strong credential binding with no harness in sight, a trusted harness attributes work items precisely while the credential is an ordinary bearer token, and an action-bound permit can exist over either. No single ladder orders them, so the family names the properties directly, as a vector, and a deployment claims the combination each path actually has. +===========+=============+==================================================+ |Property |Meaning |Minimum proof | +===========+=============+==================================================+ |mission- |A Mission |The canonical (issuer, mission id) pair; grants | |reference- |tuple was |nothing and makes no security claim | |selected |supplied for | | | |routing and | | | |selection | | +-----------+-------------+--------------------------------------------------+ |work-item- |A trusted |An authenticated attacher, a tamper-resistant | |bound |component |work-item identifier, and stated inheritance and | | |bound that |retry rules | | |tuple to this| | | |session, | | | |queue, or | | | |task item | | +-----------+-------------+--------------------------------------------------+ |credential-|The presented|A mapping join or Mission Join Assertion | |correlated |credential is|([I-D.draft-mcguinness-mission-authority-server]),| | |correlated to|with its stated ceiling | | |the Mission's| | | |parties | | +-----------+-------------+--------------------------------------------------+ |credential-|The |The six equivalence properties below | |mission- |credential's | | |bound |authority was| | | |issued or | | | |derived for | | | |the Mission | | +-----------+-------------+--------------------------------------------------+ |presenter- |The presenter|Issuance-time key targeting (cnf or an equivalent | |key-bound |proves |confirmation) plus presentation-time proof of | | |possession of|possession | | |the key the | | | |credential is| | | |constrained | | | |to | | +-----------+-------------+--------------------------------------------------+ |instance- |The concrete |presenter-key-bound plus the instance requirements| |bound |acting |below | | |instance is | | | |identified | | | |and holds the| | | |bound key | | +-----------+-------------+--------------------------------------------------+ |action- |An |One of the two proof forms below | |bound |authenticated| | | |permit | | | |authorizes | | | |one | | | |operation, | | | |resource, and| | | |input | | | |projection | | +-----------+-------------+--------------------------------------------------+ Table 10: Mission binding properties The properties are claimed per covered Authorization Server, resource, and action path, never as a product-wide maximum: a mixed estate claims what each path has, and a weaker path never inherits a stronger path's claim from the deployment's name. Where policy requires a property on a path, its absence denies; nothing falls back silently to a weaker binding. *Credential-mission-bound* is defined by equivalence, not by one artifact. For the covered path the credential establishes all of: 1. a trusted issuer authorized to issue for the Mission; 2. the canonical (mission.issuer, mission.id) pair and the recorded authority_hash; 3. an issued authority projection no broader than the Mission's Authority Set for the target audience; 4. the mapped subject, the requesting client_id, and actor or delegation context where applicable; 5. bounded lifetime plus active-state issuance and refresh gates; and 6. an auditable derivation link to the Mission authorization: an Issuance Grant jti ([I-D.draft-mcguinness-oauth-mission-issuance-grant]), a native issuance record ([I-D.draft-mcguinness-oauth-mission]), a cross- domain projection's provenance ([I-D.draft-mcguinness-oauth-mission-cross-domain]), or an equivalently specified artifact. Sender constraint is deliberately not among them: issuance-time key targeting and presentation-time proof are presenter-key-bound, a separate property, so a path that needs possession requires the composition rather than reading it into the equivalence. That is also what the mechanisms support: the OAuth binding's tokens SHOULD be sender-constrained and the generic Issuance Grant's cnf is OPTIONAL, so native issuance, the Mission Issuance Grant, and a conforming cross-domain exchange satisfy this one property, and supply presenter-key-bound exactly where their confirmation binding is actually in force. A Mission Join Assertion fails properties 3, 5, and 6 by design, which is what separates correlation from issuance. *Presenter-key-bound* is possession and nothing more: the credential names a confirmation key at issuance, and the presenter proves possession at use, with DPoP or mutual TLS. It does not identify which concrete agent process or workload holds the key. *Instance-bound* requires all of: an authenticated instance identifier; a verified binding from that identity to the confirmation key; current proof of possession; and no key sharing across instances. End-to-end sender constraint alone establishes presenter- key-bound, never this property. *Action-bound* requires an authenticated permit binding the Mission, the action and resource, and the normalized parameters or complete request projection, under the permit's validity and use controls, in one of two proof forms: * *portable permit*: an audience-restricted, presenter- or sender- bound artifact, verified where it is presented; the transaction token of [I-D.draft-mcguinness-oauth-mission-transaction-authorization] is the family's discharge; or * *channel-bound permit*: a permit bound to the mutually authenticated requesting and executing parties and enforced on that same channel, with request cache-key equality, its validity window, and the applicable use controls; the runtime permit of the AuthZEN binding ([I-D.draft-mcguinness-mission-authzen]) discharges it under exactly those conditions. A parameter binding alone makes a response neither form, and an evaluation identifier alone is a correlator, never the property: it qualifies only where dereferencing it through an authenticated, audience-bound, freshness- and use-controlled permit store yields one of the two forms above, complete. Deployments claim compositions, and a claimed composition requires every member property: * *harness-attributed*: work-item-bound, under the attacher and inheritance rules the harness states ([I-D.draft-mcguinness-mission-harness]); * *mission-credential-bound*: credential-mission-bound plus presenter-key-bound, end to end; instance-bound strengthens the claim where an instance identity exists and is verified; and * *runtime-action-bound*: authoritative Mission establishment plus action-bound. A work-item-attribution composition is deliberately absent. work- item-bound and action-bound holding together does not prove the permitted action came from that work item: concurrent items under one Mission still substitute. The composition becomes definable only when a verified cross-link exists, the action permit or its authenticated request context binding the same tamper-resistant work- item identifier the harness recorded; no family carrier supplies that today, so a deployment claims the two properties separately and nothing more. The mechanism mapping is conservative: a propagated Mission-Reference is selection only; a mapping join is credential-correlated, with its equivalence-class ambiguity; a Mission Join Assertion is a stronger, token- and key-specific credential-correlated, still never issuance; a trusted harness supplies work-item-bound where its attacher requirements hold; a native or issuance-grant-derived token is credential-mission-bound, and presenter-key-bound where its confirmation binding is in force end to end; an authenticated client- instance assertion with a verified key binding is what makes a path instance-bound; a verified transaction token is the portable action- bound form, and an AuthZEN runtime permit is the channel-bound form under that binding's conditions. The property names above are stable identifiers, and a claim is a per-path declaration, not prose: each claimed property or composition names the covered issuer, resource, and action-class paths. The Enforcement Scope Statement carries the per-path declarations for the enforcement-adjacent properties, and the Mission Deployment Profile (Section 14) composes them; a binding's Statement declares what the binding can supply, which is never itself a deployment claim. An unknown property identifier, an undeclared path, or an unstated property is not claimed, and a consumer treats it as not held; nothing downgrades silently. Schema-level claim identifiers and validation rules remain the Deployment Profile's own future work. Binding properties and the assurance claims above compose rather than repeat: a binding property says whose Mission a path's work and credentials are bound to; an assurance claim says what the deployment's enforcement proves. Credential-level and action-level binding likewise compose rather than substitute. 14. The Mission Deployment Profile The Mission Assurance Levels (Section 13) name what to deploy, and the assurance claims (Section 13.2) name what may be proven; a claim is only checkable if a deployment states, concretely, what it enforces and what it leaves outside the boundary. The *Mission Deployment Profile* is that system-level artifact: the published composition of the per-layer statements the profiles themselves demand (the runtime profile's Enforcement Scope Statement, the harness environment statement, the MAS mapping contract, the Resource Server coverage split, the transparency-service topology and schedule, and the progressive profile's bounds and ceiling-review cadence, each where its profile is run), composed into one object an auditor, a procurement, or a security review can read. It is one artifact, not a second one: each fact's owning profile governs its meaning and normative force, and this document fixes no serialization. A machine-readable manifest schema, with stable claim identifiers and validation rules, is deferred family work; until it exists, the shape below is illustrative and the per-profile statements are the checkable form. Its distinguishing field is residual_risks: the profile is not credible unless it states, in the same object as its guarantees, what it does not cover. An illustrative shape: { "profile": "mission-governed-agent-runtime", "assurance_level": "high-assurance-agent", "mission_issuer": "https://as.example.com", "state_sources": [ { "type": "status_endpoint", "max_staleness_seconds": 30 } ], "issuance": { "binding": "oauth-core", "mission_claim_required": true, "refresh_gated_on_active_state": true }, "runtime": { "pdp": "authzen", "pep_locations": ["tool-gateway", "browser-action-proxy"], "mediated_action_classes": [ "irreversible_action", "external_commitment", "external_communication", "privileged_administration" ], "action_bound_approval_classes": [ "irreversible_action", "privileged_administration" ], "unmediated_exclusions": [ "internal_reasoning", "local_cache_read" ] }, "credential_custody": { "held_by": "pep", "sender_constrained": true, "key_generated_in_pep": true, "agent_receives_bearer_token": false }, "key_custody": [ { "key_class": "issuer_signing", "artifact_classes": ["mission_tokens"], "kid_selector": "issuer-token-2026", "holder": "hsm_or_kms", "exportable": false, "generation": "dual_controlled", "signing_use_controls": "online_token_signing", "compromise_recovery_ref": "https://ops.example.com/procedures/issuer-key-compromise" }, { "key_class": "issuer_signing", "artifact_classes": ["registered_evidence", "portable_artifacts"], "kid_selector": "issuer-evidence-2026", "holder": "hsm_or_kms", "exportable": false, "generation": "dual_controlled", "signing_use_controls": "low_volume_high_value_signing", "compromise_recovery_ref": "https://ops.example.com/procedures/issuer-key-compromise" }, { "key_class": "mediating_pep_custody", "artifact_classes": ["sender_constraint_proof"], "kid_selector": "pep-dpop-2026", "holder": "software", "exportable": false, "generation": "generated_in_pep", "signing_use_controls": "per_session_sender_constraint", "compromise_recovery_ref": "https://ops.example.com/procedures/pep-key-rotation", "attestation_ref": "https://attest.example.com/pep/2026" } ], "approval_rendering": { "rendered_by": "agent-isolated-component" }, "harness": { "subagent_inheritance": "explicit_delegation_only", "resume_requires_active_state": true, "cached_credentials_revalidated": true, "secondary_egress_enumerated": true }, "exposure": { "taint_rule": "enforced", "egress_channels_enumerated": true }, "standing_charters": { "ceiling_review_cadence_days": 90, "per_drawdown_bound": "single_entry_delta", "drawdown_rate_bound_per_chain_per_hour": 60 }, "resource_servers": { "authorization_details_enforcing": ["https://erp.example.com"], "scope_projection_only": ["https://mail.example.com"], "constraint_enforcement_for_scope_only": "runtime_pep" }, "evidence": { "decision_evidence": true, "execution_evidence": true, "retention_days": 365, "field_classification": "evidence-schema-v2", "evidence_access_audited": true, "erasure_policy": "erasure-records", "transparency": { "service_operator": "third_party", "monitor": "sec-ops", "registration_time_bound_seconds": 3600 } }, "residual_risks": [ "unmediated local reasoning is outside enforcement", "revocation latency up to 30 seconds", "PEP compromise is not prevented", "per-entry constraints reach scope-only resources only via the PEP", "long-term memory and provider model context are not Mission-scoped exposure points" ] } The evidence member carries the deployment's evidence-handling posture beside its guarantees: the field-classification scheme its records use, whether access to Mission evidence is itself audited, and the erasure policy that pairs retention with deletion accountability ([I-D.draft-mcguinness-mission-audit]). The key_custody member declares, as a list keyed by key and application rather than one row per key class, the custody a deployment states for each signing key it operates: the key class (the five classes [I-D.draft-mcguinness-mission-security-model] enumerates: issuer signing, evidence signing, agent sender- constraint, mediating-PEP custody, attenuation roots), the artifact classes or kid selector the entry covers (core recommends segmenting issuer signing keys by artifact class under distinct kid values within one jwks_uri, [I-D.draft-mcguinness-oauth-mission]), the holder, whether the key is exportable, its generation and signing-use controls, a reference to its documented compromise-recovery procedure, and any attestation or verifier reference for that key. software and hsm_or_kms are example holder values, a mechanism family rather than an assurance grade; this document defines neither as a normative custody-grade enum and fixes no validation rule for either. key_custody makes the trusted-base key-custody statement [I-D.draft-mcguinness-mission-security-model] already requires legible in the Deployment Profile; it does not make that statement checked. Custody assurance stays open until a normative reader or verifier for this declaration exists. Two deployments that both "support Mission" but publish different Deployment Profiles provide different security properties, and the profile is what makes that difference legible. A deployment claiming a level (Section 13) states it here and lists the residuals that level leaves. 15. Prevention, Detection, and Residue Each layer earns a specific property and leaves a specific residue. Stated as a table so a claim cannot be read as more than it is: +==============+=====================+============+==============+ | Mechanism | Prevents | Detects | Does not | | | | | solve | +==============+=====================+============+==============+ | Core | over-issuance | the | action-time | | issuance | beyond the approved | approved | misuse | | | authority; issuance | authority | within scope | | | after revocation or | (anchored) | | | | expiry | | | +--------------+---------------------+------------+--------------+ | Runtime | an unauthorized | each PDP/ | actions on | | enforcement | action on a | PEP | an | | | mediated path | decision | unmediated | | | | (evidence) | path | +--------------+---------------------+------------+--------------+ | Consent | silent divergence | the | whether a | | Evidence | between what was | rendered | human | | | shown and what was | disclosure | perceived or | | | committed | | understood | | | | | it | +--------------+---------------------+------------+--------------+ | Audit | undetectable log | the | a producer | | Transparency | tampering or | evidence | logging a | | | omission (under | timeline | false record | | | expected | | | | | registration) | | | +--------------+---------------------+------------+--------------+ | Mandate | reliance on | portable | authority | | | unverifiable | Mission | (it grants | | | committed facts | facts | none) | +--------------+---------------------+------------+--------------+ Table 11 The pattern is uniform: the family commits and checks what a party was shown, decided, or did; it does not make the human attentive, the producer honest, or the unmediated path disappear. Those are the residues the Mission Assurance Levels (Section 13) and the security model make a deployment state rather than assume, and the exposure arm (Section 4.1) carries the same honesty in the other direction. 15.1. The Containment Matrix Mission termination is one control in a larger containment surface. Each kill has a different blast radius, and an incident responder needs the whole matrix: +==========+=============+=======================================================+ |Control |Stops |Home | +==========+=============+=======================================================+ |Capability|one |the issuer-held containment overlay | |kill |capability |([I-D.draft-mcguinness-oauth-mission-containment]) | | |within one | | | |Mission, with| | | |the body of | | | |work still | | | |running | | +----------+-------------+-------------------------------------------------------+ |Mission |one body of |the OAuth binding's revocation; cascades to Child | |kill |work: new |Missions | | |derivation at|([I-D.draft-mcguinness-oauth-mission-child-delegation])| | |once, and | | | |residual | | | |credentials | | | |at the | | | |earliest of | | | |revocation, | | | |re-check, or | | | |their own | | | |expiry | | | |(Section | | | |10.5) | | +----------+-------------+-------------------------------------------------------+ |Agent kill|all work by |the deployment's agent IAM (Section 9.2) | | |one agent, | | | |across its | | | |Missions | | +----------+-------------+-------------------------------------------------------+ |Agent |every |the deployment's change governance (Section 9.2) | |Deployment|instance | | |kill |running a | | | |compromised | | | |version | | +----------+-------------+-------------------------------------------------------+ |Credential|credentials |the binding's substrate, where it supports revocation; | |kill |already |otherwise expiry (Section 10.5) | | |issued | | +----------+-------------+-------------------------------------------------------+ |Workload |the running |the platform | |kill |compute | | | |itself | | +----------+-------------+-------------------------------------------------------+ |Egress |the |gateway and network controls | |kill |communication| | | |path | | +----------+-------------+-------------------------------------------------------+ Table 12 Mission termination participates in incident response; it does not replace it. Revoking the Mission stops issuance at once and stops mediated actions within the staleness bound (Section 10.5), but it terminates no process and closes no network path. The converse holds too: killing a workload leaves the Mission active and its authority derivable to a replacement instance unless the Mission is also revoked. Capability kill claims one of two properties, and which one tracks the deployment's assurance level ([I-D.draft-mcguinness-oauth-mission-containment]): at Baseline Issuance, a new-derivation kill, gating derivations minted after the transition and propagating to Child Missions justified by the contained entry, while a cross-domain grant already redeemed or an offline attenuation root already minted before the transition keeps its own bounded lifetime, exactly as the credential-kill row's residual does; at Runtime-Enforced and above, an action-time kill that additionally reaches a token issued before the transition, bounded by the state source's staleness plus the permit and execution windows. A deployment's incident runbook names which of these controls exist, who may pull each, and which capability-kill property its own assurance level claims. 16. Mission Requirements The requirements the family answers are stated implementation- neutrally; each names its answering documents by short form (Section 17). They stand on their own as a checklist, but conformance is capability- layered rather than measured by resemblance to the OAuth wire model ([I-D.draft-mcguinness-mission-substrate]). A design provides the shared *Mission Context* capabilities when the first four properties, a compact restatement of the substrate contract's kernel ([I-D.draft-mcguinness-mission-substrate]), hold: 1. *An approved task context*: the task is durable and explicitly approved rather than only a session or token. 2. *Stable binding and integrity*: a native reference binds the controlling authority, acting actor, and immutable approved context, or a verifiable commitment to that context, and propagation or correlation rules carry the reference across parties without conferring authority. 3. *Lifecycle gate with a reliance bound*: only an active context supports new governed decisions at the binding's declared control point, and no decision or artifact outlives both its stated bound and the transition that ends the context. 4. *Governance history*: decisions and interactions are correlated to the stable reference in an ordered audit or governance record. A design additionally provides *structured-authority* capabilities when two more properties hold: 1. *Deterministic authority representation*: credentials or decisions carry authority that an identified enforcement point can evaluate. 2. *Monotonic derivation*: derived and delegated authority only narrows, and widening requires a fresh approval or a drawdown already bounded by an approved ceiling. A design provides *Runtime-Enforced Mission* capabilities when two further properties hold: 1. *Per-action runtime enforcement*: consequential actions are checkable against the object at the point of use. 2. *Evidence that joins*: what was approved, shown, decided, and done is reconstructible from evidence joined on the object's identity. AAuth supplies the first four natively (its expires_at member carries the reliance bound), with its lifecycle gate scoped to PS endpoints and PS-mediated paths carrying the validated reference. The OAuth binding supplies the structured-authority layer as well. Runtime and portable evidence remain separately claimed capabilities; the requirements below unpack the family mechanisms without implying every binding implements every one. 16.1. Context and Intent * *R1*: The task an agent pursues is a durable, structured, approved object (oauth-mission; mission-authority-server). * *R2*: The task and its derived authority are integrity-committed at approval, reproducible from the record alone (oauth-mission). * *R3*: Task proposals are untrusted input: fields the agent can influence never derive, widen, or gate authority (oauth-mission; mission-shaping). 16.2. Consent and Approval * *R4*: The derived authority is disclosed to the Approver before it takes effect, and the approval covers it (oauth-mission). * *R5*: A single accountable Approver is recorded immutably on the object (oauth-mission). * *R6*: What was shown at approval is committed and reconstructible by an auditor (oauth-mission-consent-evidence). * *R7*: Approval can be asynchronous, and any in-review negotiation only narrows (oauth-mission-approval; the experimental oauth- mission-approval-revision). 16.3. Lifecycle * *R8*: Reliance is gated on task state: only active permits it, and unrecognized states fail safe (oauth-mission). * *R9*: Revocation is independent of credential possession, and state changes propagate by pull or push (oauth-mission; oauth- mission-status; oauth-mission-signals). * *R10*: A task can be suspended and resumed without being terminated (oauth-mission-status). * *R11*: Authority widens only through a fresh approval that creates a successor (oauth-mission-expansion). * *R12*: Authority retires per entry when the work an entry served is done (oauth-mission-status). 16.4. Delegated, Projected, and Enforced Execution * *R13*: Derived and delegated authority only narrows (oauth- mission; oauth-mission-attenuation). * *R14*: Sub-agents receive authority by explicit delegation with lineage, fan-out control, and cascade revocation, never by session ancestry (oauth-mission-child-delegation). * *R15*: Each consequential action is checked at the point of use, the permit bound to the concrete parameters (mission-runtime; mission-authzen). * *R16*: When a task stops, governed work stops with it and in- flight work unwinds safely (mission-harness; mission- orchestration). * *R17*: Task evidence is tamper-evident and verifiable outside the deployment (mission-audit; mission-mandate). * *R18*: A Mission's committed facts and authority are honorable in another trust domain without widening, and verification needs no session with the issuer (oauth-mission-cross-domain; mission- mandate). * *R19*: Delegation history follows authorization continuity, never organizational topology. A Child Mission, an Expansion successor, or any fresh approval starts a new approval basis and actor chain; topology alone neither restarts nor extends one. Representation is profile-specific: issuer-mediated delegation nests act; holder- mediated attenuation reconstructs history from per-hop actors; and cross-domain projection carries no upstream act chain, so any destination-domain chain begins locally. Actor identity is attribution and policy input; it does not itself grant or prove authority (oauth-mission; oauth-mission-child-delegation; oauth- mission-expansion; oauth-mission-attenuation; oauth-mission-cross- domain). 17. Mission Document Map One row per document, grouped as the family groups them; the short form drops the draft-mcguinness- prefix, and the repository's DRAFTS.md is the full catalog with maturity and adoption metadata. The naming encodes a boundary: profiles extending the Authorization Server's own surfaces keep "oauth" in their names; profiles defined against the substrate of Section 10 are named without it. This document is named without it because the architecture is substrate- neutral by construction. Maturity is a dependency boundary. A Standards-Track profile never depends normatively on an experimental one: the experimental profiles extend the stable interface only through its declared seams, the controls extension of the OAuth binding and the coordinated-extension rules of the evidence objects, and a Standards-Track document cites them informatively at most. An experimental profile that stabilizes crosses the boundary by reclassification, not by a stable document absorbing a dependency. Within Lifecycle, Status is the OAuth lifecycle suite's root document, with Signals (the push channel) and Management (the operator plane) as its satellites; AAuth keeps its native two-state lifecycle, served by mission-aauth-management, with the expiry bound profiled by aauth-mission-expiry. *Architecture mappings:* +=============+================================================+ | Document | Role | +=============+================================================+ | mission-aam | Experimental sketch. Cloudflare's Agent | | | Access Model realized on the family: the six | | | AAM components map onto issuance, the PDP, the | | | mediated harness, Containment, Mission | | | Templates, and the evidence join, and the | | | grant review loop is deliberately not adopted. | | | It defines no binding and no new mechanism. | +-------------+------------------------------------------------+ Table 13 *The substrate and the bindings:* +==============================+====================================+ | Document | Role | +==============================+====================================+ | oauth-mission | The OAuth binding, its OAuth | | | companions' issuance profile: | | | the OAuth realization of the | | | Mission, the approval event | | | and anchors, the mission | | | claim, the subset rule, state- | | | gated issuance. | +------------------------------+------------------------------------+ | mission-authority-server | The standalone Mission Issuer | | | and the PDP join of ordinary | | | credentials to Missions. | +------------------------------+------------------------------------+ | oauth-mission-issuance-grant | The issuance join: MAS-minted | | | grants an estate Authorization | | | Server redeems at its token | | | endpoint for Mission-bound, | | | state-gated tokens. | +------------------------------+------------------------------------+ | mission-aauth | The AAuth Mission Context | | | binding: the Person Server as | | | controlling authority, the | | | exact-byte mission blob under | | | AAuth's s256 commitment, | | | native {approver, s256} | | | propagation, and active-state | | | gating on PS endpoints and the | | | PS-asserted and federated | | | paths. It defines no OAuth | | | Authority Set or additional | | | AAuth wire members. | +------------------------------+------------------------------------+ | mission-uma | Experimental sketch. The UMA | | | 2.0 binding: the pushed | | | Mission Intent rides claims | | | pushing, the resource owner's | | | decision fills UMA's | | | authorization assessment, the | | | RPT is the Mission-bound | | | credential, and the PCT is | | | continuity that is never | | | authority; the first binding | | | authored against the substrate | | | contract. | +------------------------------+------------------------------------+ | mission-gnap | Experimental sketch. The GNAP | | | binding: the Mission Intent | | | rides a registered grant | | | request member, interaction or | | | a companion-supplied standing | | | basis is the approval event, | | | grant modification splits into | | | in-Mission drawdown and | | | Approver-routed expansion, and | | | the continuation access token | | | is continuity that is never | | | authority; the second binding | | | authored against the substrate | | | contract. | +------------------------------+------------------------------------+ | mission-substrate | The binding-neutral kernel | | | contract: normative on any | | | further binding, conformed to | | | by the existing bindings | | | through their published | | | Substrate Statements, with | | | vocabulary ownership migrating | | | to it by touch. | +------------------------------+------------------------------------+ Table 14 *Approval time:* +=================================+=================================+ | Document | Role | +=================================+=================================+ | mission-shaping | Client-side shaping of a | | | user's request into a | | | candidate Mission Intent, as | | | untrusted proposal. | +---------------------------------+---------------------------------+ | oauth-mission-consent-evidence | The consent_rendering_hash | | | anchor and signed evidence of | | | what the Approver was shown, | | | with the translation floor and | | | Disclosure Interrogation that | | | keep the approval surface | | | readable and questionable. | +---------------------------------+---------------------------------+ | oauth-mission-approval | Asynchronous approval over the | | | deferred substrate. | +---------------------------------+---------------------------------+ | mission-approval-governance | The Approval Governance | | | Record: authenticated, event- | | | bound, policy-authorized | | | assertions standing behind an | | | approval decision, committed | | | atomically with Mission | | | activation and immutable once | | | signed. | +---------------------------------+---------------------------------+ | oauth-mission-approval-revision | Experimental: in-review | | | narrowing revision of a | | | deferred proposal. | +---------------------------------+---------------------------------+ | oauth-mission-template | Experimental: one consent to a | | | task template's ceiling; each | | | dispatch instantiates an | | | ordinary Mission from it by | | | policy, at machine speed, | | | bounded by its own derived | | | Authority Set and never | | | exceeding the ceiling. | +---------------------------------+---------------------------------+ Table 15 *Lifecycle:* +===========================+======================================+ | Document | Role | +===========================+======================================+ | oauth-mission-status | The signed pull surface and the | | | lifecycle endpoint, with suspended | | | and completed, and per-entry | | | discharge via the terminal_when | | | constraint. | +---------------------------+--------------------------------------+ | oauth-mission-signals | A signed event per lifecycle | | | transition, push or poll. | +---------------------------+--------------------------------------+ | oauth-mission-expansion | Widening through an approved | | | successor Mission. | +---------------------------+--------------------------------------+ | oauth-mission-containment | Event-triggered, monotonic narrowing | | | of a live Mission's effective | | | authority, with restoration only | | | through an approved successor. | +---------------------------+--------------------------------------+ | oauth-mission-progressive | Experimental: policy-adjudicated | | | expansion within a pre-consented | | | ceiling. | +---------------------------+--------------------------------------+ | mission-discovery | Experimental: the open-world | | | encounter as a governed operation: | | | identity pinning, ceiling and | | | contextual adjudication with the | | | lying-resource and tainted-session | | | floors, Discovery Evidence. | +---------------------------+--------------------------------------+ | oauth-mission-management | Fleet enumeration and bulk lifecycle | | | operations for operators and | | | incident response; dry-run-first, | | | per-Mission semantics. | +---------------------------+--------------------------------------+ | mission-aauth-management | AAuth-native status, permanent | | | termination, optional expiry, and | | | delegation-tree queries at the | | | Person Server, keyed only by | | | {approver, s256} and preserving | | | AAuth's active and terminated | | | states. | +---------------------------+--------------------------------------+ | aauth-mission-expiry | Profile of AAuth's expires_at | | | mission lifetime bound (RFC 3339 | | | precision, skew documentation, | | | prompt termination). The base | | | protocol enforces the bound on every | | | Person Server decision path and caps | | | every token carrying mission_s256; | | | the AAuth binding requires the | | | member on every mission. | +---------------------------+--------------------------------------+ Table 16 *Cross-domain projection and continuity:* +====================================+==============================+ | Document | Role | +====================================+==============================+ | oauth-mission-cross-domain | Single-hop projection of | | | a Mission to another | | | trust domain via the | | | cross-domain grant. | +------------------------------------+------------------------------+ | oauth-mission-cross-org-delegation | Recursive cross- | | | organizational delegation | | | as a profile of offline | | | attenuation: the chain is | | | the portable authority | | | proof, each hop names its | | | own actor under the | | | identity-binding rule, | | | and projection turns a | | | verified chain into a | | | local token. | +------------------------------------+------------------------------+ | oauth-mission-continuation | The authorization- | | | continuity profile: a | | | Mission continues its | | | authorization over | | | identity-continuity | | | transports (Identity | | | Continuation, async | | | delegation, cross- | | | domain), state-gated, | | | with the invariant that a | | | continuation handle | | | grants nothing. | +------------------------------------+------------------------------+ | oauth-id-continuation-assertion | A continuation transport: | | | a short-lived token- | | | exchange subject token | | | yielding an ID-JAG for an | | | intra-domain hop, bound | | | to a Mission's | | | authorization by mission- | | | continuation. | +------------------------------------+------------------------------+ Table 17 *Runtime enforcement:* +=========================================+========================+ | Document | Role | +=========================================+========================+ | mission-runtime | The per-action | | | decision contract: | | | parameter binding, | | | custody, fail-closed | | | behavior. | +-----------------------------------------+------------------------+ | mission-authzen | The concrete decision- | | | API binding: the | | | AuthZEN request and | | | response mapping and | | | the denial | | | classification. | +-----------------------------------------+------------------------+ | mission-runtime-evidence | The binding-neutral | | | Decision Evidence, | | | Execution Evidence, | | | and Refusal Record | | | objects a decision-API | | | binding's PDP and PEP | | | emit, their integrity | | | envelope, and | | | retention. | +-----------------------------------------+------------------------+ | mission-metering | Experimental: | | | cumulative consumption | | | bounds and the | | | metering that enforces | | | them. | +-----------------------------------------+------------------------+ | oauth-mission-transaction-authorization | Experimental: the | | | transaction | | | authorization | | | challenge profiled for | | | the cross-domain case, | | | minting a single-use | | | action-bound token | | | after a fresh decision | | | with a governed | | | approval as input. | +-----------------------------------------+------------------------+ Table 18 *Agent runtime:* +============================+===================================+ | Document | Role | +============================+===================================+ | mission-harness | Binding sessions, queues, and | | | sub-agent handles to Mission | | | state; the mediated environment. | +----------------------------+-----------------------------------+ | mission-capability-binding | Binds an approved catalog-sourced | | | entry (an MCP tool, an OpenAPI | | | operation) to its capability | | | source at derivation and refuses | | | on drift at decision time, with | | | the AuthZEN MCP profile's (COAZ) | | | mapping for MCP deployments. | +----------------------------+-----------------------------------+ | mission-orchestration | Experimental: reversibility | | | classes, unwind plans, and | | | compensation after a stop. | +----------------------------+-----------------------------------+ Table 19 *Sub-agents:* +================================+================================+ | Document | Role | +================================+================================+ | oauth-mission-child-delegation | Child Missions with lineage, | | | strict-subset authority, | | | cascade revocation. | +--------------------------------+--------------------------------+ | oauth-mission-attenuation | Experimental: narrower | | | Mission-bound tokens minted | | | offline; the kill switch | | | preserved by runtime re-check. | +--------------------------------+--------------------------------+ Table 20 *Proof and portability:* +=================+==============================================+ | Document | Role | +=================+==============================================+ | mission-mandate | A signed, portable statement of a Mission's | | | committed facts; evidence, not a credential. | +-----------------+----------------------------------------------+ | mission-audit | Registration of Mission evidence in a SCITT | | | Transparency Service; receipts verifiable | | | offline. | +-----------------+----------------------------------------------+ Table 21 *Security model:* +=============================+=====================================+ | Document | Role | +=============================+=====================================+ | oauth-mission-work-products | Experimental: work-product | | | provenance, attribution and | | | not authority, and the non- | | | transitive Mission-to-Mission | | | handoff rule; a work product | | | crossing into a Mission is | | | input, re-evaluated under the | | | receiver's Authority Set. | +-----------------------------+-------------------------------------+ | mission-security-model | The trusted base in one view: | | | what each component must | | | achieve and what its | | | compromise costs. | +-----------------------------+-------------------------------------+ Table 22 18. Security Considerations This document introduces no mechanism and therefore no new security considerations. The consolidated trusted base and compromise analysis are the Mission Security Model's ([I-D.draft-mcguinness-mission-security-model]), and each profile's own Security Considerations remain normative. 19. Privacy Considerations The privacy properties of the Mission record and the Mission Intent are the OAuth binding's ([I-D.draft-mcguinness-oauth-mission]) and each adopted profile's; this document describes them and adds no data element of its own. The OAuth binding's Privacy Considerations cover Mission Identifier correlation, token payload disclosure, and Intent retention, with the audit profile's erasure record as the transparency-side mechanism ([I-D.draft-mcguinness-mission-audit]). The status profile's anti-oracle property bounds what its status surfaces disclose ([I-D.draft-mcguinness-oauth-mission-status]). The AAuth binding's privacy posture is its own ([I-D.draft-mcguinness-mission-aauth]): the private mission blob never leaves the agent and the Person Server, the stable {approver, s256} reference is a correlation handle across every resource that sees it, and the mission log concentrates a detailed activity history at the Person Server, with the binding's minimization and retention duties applying there. 20. IANA Considerations This document makes no IANA request. 21. Informative References [A2A] A2A Project, "Agent2Agent (A2A) Protocol Specification, Version 1.0", 2026, . [I-D.draft-ietf-oauth-attestation-based-client-auth] Looker, T., Bastian, P., and C. Bormann, "OAuth 2.0 Attestation-Based Client Authentication", Work in Progress, Internet-Draft, draft-ietf-oauth-attestation- based-client-auth-10, 6 July 2026, . [I-D.draft-ietf-oauth-spiffe-client-auth] Schwenkschuster, A., Kasselman, P., Rose, S., Thorgersen, S., and N. Cam-Winget, "OAuth SPIFFE Client Authentication", Work in Progress, Internet-Draft, draft- ietf-oauth-spiffe-client-auth-02, 15 June 2026, . [I-D.draft-mcguinness-aauth-mission-expiry] McGuinness, K., "AAuth Mission Expiry", 2026, . [I-D.draft-mcguinness-mission-aauth] McGuinness, K., "Mission Context Binding for AAuth", 2026, . [I-D.draft-mcguinness-mission-aauth-management] McGuinness, K., "AAuth Mission Management", 2026, . [I-D.draft-mcguinness-mission-audit] McGuinness, K., "Mission Audit Transparency", 2026, . [I-D.draft-mcguinness-mission-authority-server] McGuinness, K., "Mission Authority Server", 2026, . [I-D.draft-mcguinness-mission-authzen] McGuinness, K., "Mission-Bound Runtime Enforcement: AuthZEN Profile", 2026, . [I-D.draft-mcguinness-mission-capability-binding] McGuinness, K., "Mission Capability Binding", 2026, . [I-D.draft-mcguinness-mission-discovery] McGuinness, K., "Mission Open-World Discovery", 2026, . [I-D.draft-mcguinness-mission-gnap] McGuinness, K., "Mission-Bound Authorization for GNAP", 2026, . [I-D.draft-mcguinness-mission-harness] McGuinness, K., "Mission-Aware Agent Harnesses", 2026, . [I-D.draft-mcguinness-mission-mandate] McGuinness, K., "Mission Mandate", 2026, . [I-D.draft-mcguinness-mission-metering] McGuinness, K., "Mission Consumption Metering", 2026, . [I-D.draft-mcguinness-mission-orchestration] McGuinness, K., "Mission Orchestration and Unwinding", 2026, . [I-D.draft-mcguinness-mission-runtime] McGuinness, K., "Mission-Bound Runtime Enforcement", 2026, . [I-D.draft-mcguinness-mission-runtime-evidence] McGuinness, K., "Mission Runtime Evidence", 2026, . [I-D.draft-mcguinness-mission-security-model] McGuinness, K., "Mission Security Model", 2026, . [I-D.draft-mcguinness-mission-shaping] McGuinness, K., "Mission Intent Shaping", 2026, . [I-D.draft-mcguinness-mission-substrate] McGuinness, K., "Mission Substrate Requirements", 2026, . [I-D.draft-mcguinness-mission-uma] McGuinness, K., "Mission-Bound Authorization for UMA 2.0", 2026, . [I-D.draft-mcguinness-oauth-ai-agent-instance] McGuinness, K., "OAuth 2.0 AI Agent Instance Profile", Work in Progress, Internet-Draft, draft-mcguinness-oauth- ai-agent-instance-00, 4 July 2026, . [I-D.draft-mcguinness-oauth-client-instance-assertion] McGuinness, K., "OAuth 2.0 Client Instance Assertion", Work in Progress, Internet-Draft, draft-mcguinness-oauth- client-instance-assertion-01, 24 June 2026, . [I-D.draft-mcguinness-oauth-id-continuation-assertion] McGuinness, K., "Identity Continuation Assertion for OAuth 2.0 Token Exchange", 2026, . [I-D.draft-mcguinness-oauth-mission] McGuinness, K., "Mission-Bound Authorization for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-approval] McGuinness, K., "Mission Deferred Approval for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-attenuation] McGuinness, K., "Mission Offline Attenuation for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-child-delegation] McGuinness, K., "Mission Child Delegation for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-consent-evidence] McGuinness, K., "Mission Consent Evidence for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-containment] McGuinness, K., "Mission Containment for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-continuation] McGuinness, K., "Mission Continuation: Authorization Continuity for Mission-Bound Authorization", 2026, . [I-D.draft-mcguinness-oauth-mission-cross-domain] McGuinness, K., "Mission Cross-Domain Projection for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-expansion] McGuinness, K., "Mission Expansion for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-issuance-grant] McGuinness, K., "Mission Issuance Grant for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-management] McGuinness, K., "Mission Management for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-progressive] McGuinness, K., "Mission Progressive Authorization for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-signals] McGuinness, K., "Mission Lifecycle Signals for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-status] McGuinness, K., "Mission Status and Lifecycle for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-transaction-authorization] McGuinness, K., "Mission Transaction Authorization Profile for OAuth 2.0", 2026, . [I-D.draft-mcguinness-oauth-mission-work-products] McGuinness, K., "Mission Work Products", 2026, . [I-D.draft-zehavi-oauth-rar-metadata] Zehavi, Y., "OAuth 2.0 RAR Metadata and Error Remediation", Work in Progress, Internet-Draft, draft- zehavi-oauth-rar-metadata-06, 9 August 2026, . [I-D.draft-zhu-oauth-async-delegation] Zhu, L. and Z. Berg, "Delegated Refresh Tokens for OAuth 2.0 Token Exchange", Work in Progress, Internet-Draft, draft-zhu-oauth-async-delegation-05, 3 August 2026, . [RFC6749] Hardt, D., Ed., "The OAuth 2.0 Authorization Framework", RFC 6749, DOI 10.17487/RFC6749, October 2012, . [RFC8693] Jones, M., Nadalin, A., Campbell, B., Ed., Bradley, J., and C. Mortimore, "OAuth 2.0 Token Exchange", RFC 8693, DOI 10.17487/RFC8693, January 2020, . [RFC9126] Lodderstedt, T., Campbell, B., Sakimura, N., Tonge, D., and F. Skokan, "OAuth 2.0 Pushed Authorization Requests", RFC 9126, DOI 10.17487/RFC9126, September 2021, . [RFC9396] Lodderstedt, T., Richer, J., and B. Campbell, "OAuth 2.0 Rich Authorization Requests", RFC 9396, DOI 10.17487/RFC9396, May 2023, . [RFC9943] Birkholz, H., Delignat-Lavaud, A., Fournet, C., Deshpande, Y., and S. Lasker, "An Architecture for Trustworthy and Transparent Digital Supply Chains", RFC 9943, DOI 10.17487/RFC9943, June 2026, . Acknowledgments This document is part of the Mission-Bound Authorization work and maps the structure that its profiles establish individually. Author's Address Karl McGuinness Independent Email: public@karlmcguinness.com