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docs: PRD rev1 review Q90 — Prettier-format the bundle, add rev0 archive README
Addresses CPS-PRD-REV1-REVIEW-Q90 findings F1 and F3 on PR #1491:

F1 (format gate): `prettier --write` on the 18 rev1 bundle documents.
Whitespace, table padding, list markers and emphasis delimiters only — a
normalized token comparison of every file before/after shows zero content
difference, so the ratified text is unchanged and no re-ratification applies.

F3 (rev0 relative links): the archived rev0 PRD stays byte-identical
(sha256 60cc2f98...36afdf verified) per GOV.1 archive-never-edit. A sibling
docs/PRDs/2026-08-26_PRD_rev0/README.md records the digest, the original
location, the owner disposition that the in-file links are intentionally
historical, and a resolution table for all 9 targets (11 occurrences), each
verified to exist. Future relocated archives ship the same README instead of
edited bytes.

F2 (test step) is investigated separately against the CI log.
2026-09-02 09:40:46 -05:00

5.2 KiB

id, status, ratified
id status ratified
SEAT.1 ratified 2026-09-01 (Jason Woltje; PRD rev1 ratification PR)

SEAT.1 — Seat identity, profile, and configuration

Instance contract (register OD-48)

File Carries
profile.json structured identity — and, post-consolidation, the full seat record (DATA.1-record-authority §consolidation)
overlay.json generated composition
seat-local AGENTS.md narrative specialization
SOUL.md persona

Seat configuration surface (WebUI page + CLI)

Control Notes
harness from enabled harnesses only (HARN.1-harness-config)
model constrained by the harness's available-models allowlist
reasoning level
work dir
authentication account from configured, active accounts allowed for that harness (AUTHN.1-auth-accounts)
overlay per-seat overlay only — never the role file (ROLE separation rule)
role binding separated section — see below

The role-binding control (gap G5)

Role Binding is the single highest-authority action in the system, principal-only under L2-D13. model is a preference. They must not share one undifferentiated form — a privilege grant must not inherit the ceremony of a dropdown. Requirements:

  • Visually and structurally separate section on the page.
  • Distinct confirmation step; re-authentication of the principal is under consideration (GOV.5-open-questions Q-S2).
  • Register OD-02/OD-03 bind the semantics: a seat has exactly one role; an active session never switches roles. A role change reconfigures the existing seat, preserves identity and history, discards ephemeral context, and starts a clean session. The surface must say so before confirming.
  • Role-transition history is recorded: old role, new role, reason, authorizer, checkpoint, activation time (register OD-04).

Role changes are therefore a different operation from harness/model/provider changes (SESS.1-session-continuity) and must not share a code path.

Seat identity and credential rules (pulled 2026-08-31 from seat-identity draft)

  • One seat = one identity = one token slot. A second copy of a token anywhere is drift and is removed without reading it.
  • Agents never mint their own tokens; provisioning, rotation, and scope changes are operator authority. Credential refusal is correct behavior — the fix is the seat's identity, never another seat's or a shared credential.
  • Fail-closed everywhere: an empty/unreadable slot is a designed state reported at launch; the credential helper refuses, records, notifies — never falls back to a shared or owner credential.
  • Git identity resolution order: explicit environment identity → configured identity → git's own answer. Identity is named on every invocation and never persisted inside a shared clone/worktree config (silent attribution rewrite). Commit author must identify the seat that did the work.
  • Tokens are compared by digest, never by value; scopes are verified from the authority's own report, never transcription.

E2 inputs (triage 2026-08-31; see GOV.2-docs-inventory)

Canonical ground truth: fleet/reference/agent-mutations.md, fleet/reference/lifecycle-transitions.md (enabled/desired_state authority), fleet/how-to/create-update-delete-agent.md, guides/fleet-local-canary.md. Pending pulls: brain docs/guides/proposed/operations/seat-identity.md (credential-resolution mechanics under the OD-48 instance contract).

Role-binding step-up ruling (Q-S2, Jason 2026-09-01)

Confirming a role-binding change requires fresh principal re-authentication no older than 10 minutes — the same step-up bar the S2 identity-lifecycle contract sets for account linking. An active session alone is insufficient; this closes the stolen-session → privilege-misdirection path through the seat surface.

Seat record consolidation ruling (Q-D1, Jason 2026-09-01)

launch.env consolidates into profile.json: one seat record. Verified: mosaic-core/lib/loader.ts seatRole() reads only the role key from a generically-parsed record, so widened files are tolerated by construction.