[Decision] Should X-Actor keep outranking the authenticated identity on /meta writes? (surfaced by #7749)

Split out of #7749 so it is decided deliberately rather than inherited. #7749's fix (PR #7940) deliberately left this ordering untouched — that was the dispatch instruction, and this card is the other half of it.

Background

The five /meta write sites resolve the recorded actor as, in effect:

X-Actor header  ??  the authenticated identity

Until PR #7940 the second limb never produced anything (req.user / req.userId are never set on this transport), so the ordering was inert: the header was the only limb that ever resolved. #7940 fixed that producer, which makes the precedence live and load-bearing for the first time.

The consequence: an authenticated caller who holds manage_metadata can attribute a metadata write to somebody else by sending X-Actor: <someone-else>. The sys_metadata_audit.actor and sys_metadata_history.recorded_by rows will name that other person. Today's behaviour is pinned by a test in packages/rest/src/meta-write-actor-identity.test.ts that is explicitly labelled as the test to change when this is ruled on.

⚠️ This is not a live regression introduced by #7940 — the header behaved this way before. What changed is that it now sits in front of a limb that actually produces a value, so it is a real precedence rather than a theoretical one.

Premises (each with its re-check)

Precedence is header-first: git grep -n "resolveMetaWriteActor" origin/main -- packages/rest/src and read the method — a well-formed string header returns before resolveExecCtx is consulted.
The consumer census (who sets X-Actor, and whether anything depends on it out-ranking the session) was requested from A bearer-authenticated admin metadata write is stamped actor: 'system' — req.user / req.userId are unset on the /meta PUT path #7749's dev and reported in its  on that issue. ⚠️ I am citing that report, not an independent census of my own — re-read it before ruling, and re-run git grep -rn "X-Actor\|x-actor" origin/main plus the console side, since it is the load-bearing input for option B.
Audit rows are the compliance trail: sys_metadata_audit.actor defaults to 'system', sys_metadata_history.recorded_by to NULL (recordMetadataAudit, sys_metadata_history.recorded_by 是 lookup('sys_user') 却存哨兵字符串 'system'——声明的类型与实际存的值不是一回事 #4556).

The question

Should X-Actor continue to outrank the authenticated identity when stamping /meta write audit and history rows?

Options

A — Authenticated identity wins; X-Actor is ignored (or accepted only for machine/system callers). The audit trail then always names the principal the request was actually authorized as, and cannot be self-reported. Strongest audit integrity. Risk: breaks any legitimate delegation/impersonation flow that relies on the header today — which is exactly what the census must establish before this is safe.
B — Keep header-first (status quo), and document it as an intended delegation feature. Zero migration risk. Cost: the audit trail is self-reported by any caller who can already write metadata, so it answers "who claimed to change this", not "who changed this" — which is the question A bearer-authenticated admin metadata write is stamped actor: 'system' — req.user / req.userId are unset on the /meta PUT path #7749 was filed to make answerable.
C — Header-first, but gated. Honour X-Actor only from callers holding a dedicated capability (an impersonation/service grant), otherwise fall back to the authenticated identity. Preserves a real delegation path while closing self-attribution for ordinary admins. Cost: a new capability and its enforcement — the largest change of the three.

Recommendation: A if the census is empty, otherwise C

If nothing legitimate sets X-Actor today, A is the honest default and the cheapest: an audit field that any writer can spoof is weaker than it looks, and #7749 exists precisely because the trail could not answer "who changed this". If something does depend on it, C keeps that flow working without leaving every manage_metadata holder able to sign someone else's name. ⛔ I would not pick B silently — status quo is defensible, but only as a stated decision, because "the header wins" is currently an accident of ordering that nobody chose.

Four-lens block

Platform long-term coherence — A and C make the audit trail mean one thing ("the authorized principal"); B leaves two meanings behind one column, resolved by whichever caller spoke last. C adds a capability, i.e. a small amount of special-case surface, in exchange for keeping delegation expressible.
Measured business pull — the pull for fixing attribution is measured and real (A bearer-authenticated admin metadata write is stamped actor: 'system' — req.user / req.userId are unset on the /meta PUT path #7749 came from a QA run: every normal console write recorded system). The pull for keeping header-first is unmeasured pending the census — that is the input that decides A vs C, and it is the reason this is a decision rather than a dispatch.
AI-agent error-resistance — A is strongest: an agent cannot mis-attribute a write by copying a header from an example. B is weakest — an audit field that is self-reported reads to an agent (and an auditor) as authoritative when it is not. C sits between, and makes the delegation path explicit rather than ambient.
Startup scope discipline — A is a deletion (remove a limb); B is zero work; C is declare-and-maintain (a new capability is a permanent obligation). Discipline favours A over C unless the census forces C.

Related: #7749 (the producer fix, PR #7940), #7748 (publish/rollback writes no audit row — inherits whatever is decided here), packages/rest/src/meta-write-actor-identity.test.ts (the test that pins today's ordering and should change with the ruling).

Maintainer ruling — 2026-08-12 (premised)

Ruled: Option A — the authenticated identity wins; X-Actor no longer outranks it on /meta write attribution — PREMISED on the consumer census coming back empty.

Provenance: maintainer, triage PM session chat (session_01NKGoRBFZELVKivDkiAswdz), 2026-08-12, verbatim: 「其他两张按照你的建议」 — adopting the seat's recommendation on this card (recommendation as stated to the maintainer: "A,前提 census 复核为空;非空则回来找我"). Recorded by the triage seat; needs-user-decision → pm:queue swapped in the same write.

Three-part premised ruling (all three parts binding):

Ruling: authenticated identity is the recorded actor on all five /meta write sites; X-Actor is ignored for user principals (the card's parenthetical — accepting it from genuine machine/system callers with no authenticated user — is permitted if the census shows that shape exists).
Premise, verify FIRST: the consumer census is empty of legitimate dependents — re-run it rather than citing A bearer-authenticated admin metadata write is stamped actor: 'system' — req.user / req.userId are unset on the /meta PUT path #7749's report: git grep -rn "X-Actor\|x-actor" on origin/main here AND on objectui/cloud, plus the console callers. The dev runs this before touching code.
⛔ Fork clause: if the census turns up a real delegation/impersonation flow that depends on header-first, STOP and report — the card returns to the maintainer for A-vs-C. Do not silently implement C, and do not quietly keep B.

Also in scope when the premise holds: flip packages/rest/src/meta-write-actor-identity.test.ts (the pin explicitly labelled as the-test-to-change-when-ruled); note on #7748 that its publish/rollback audit rows inherit this attribution rule.

Size/model suggestion: S–M, mode:subagent acceptable, model: sonnet–opus.

Generated by Claude Code

Half-state repair: swapped needs-user-decision → pm:queue (domain:cli kept). Provenance: the 2026-08-12 08:15Z maintainer ruling on this card (premised Option A) states the swap was made "in the same write", but the label read-back today still showed needs-user-decision — the swap never landed (or was clobbered by a subsequent full-set label write). No new decision is made here — this completes the recorded one. The three-part premised ruling stands verbatim: authenticated identity wins; census re-run FIRST; ⛔ fork back to the maintainer if the census is non-empty.

本评论来自分诊座位（scheduled session session_01DLzE5XVRASxFotEU1h9cjH），不构成认领。

Generated by Claude Code

State repair — this card carries a standing 2026-08-12 ruling; restoring `pm:queue`

needs-user-decision → pm:queue, for the second time. The premised Option A ruling of 2026-08-12T08:15Z is on this thread and was never rescinded; the 08-14 cli-seat flag ("no ruling on the card") is contradicted by that comment — the seat's skip was otherwise correct behaviour, but the re-labelling that followed re-opened a settled decision. This is the second label regression on this card (the first was repaired 2026-08-12T11:17Z), which is worth noting because a decision card that keeps drifting back into the inbox re-bills the maintainer for the same answer.

The maintainer re-reviewed it today in the 18-card decision-box pass (live PM chat 2026-08-15, session session_01LXPH2ApQmyHYeZGHfYv7Xs, 「接受你的所有建议。」) and the accepted recommendation is identical to the standing ruling. So, re-confirmed verbatim, the three binding parts:

Ruling: authenticated identity is the recorded actor on all five /meta write sites; X-Actor is ignored for user principals (machine/system callers with no authenticated user may keep it if the census shows that shape exists).
Premise, verify FIRST: the consumer census is empty — re-run git grep -rn "X-Actor\|x-actor" on origin/main here AND objectui/cloud, plus console callers; do not cite A bearer-authenticated admin metadata write is stamped actor: 'system' — req.user / req.userId are unset on the /meta PUT path #7749's report.
⛔ Fork clause: a real delegation/impersonation dependent ⇒ STOP, report, card returns for A-vs-C. No silent C, no quiet B.

In scope on the true premise: flip packages/rest/src/meta-write-actor-identity.test.ts; note the attribution inheritance on #7748. Size/model: S–M, mode:subagent, sonnet–opus.

Generated by Claude Code

Claim: PM loop round 2
Session: session_01Y26DJEHSBhhAQ6wwfsHNza
Branch: claude/issue-7941-meta-write-actor-identity-wins
Worktree: objectstack-issue-7941
Domain: domain:cli
File surface: packages/rest/src/ (stop on breach; explain in the report)
Container & model: M, mode:subagent, model: opus (ruling allows sonnet–opus; taking the upper end — this is a premised ruling with a hard fork clause on an audit-attribution surface)
Serial constraints cleared: packages/rest is free — #8087's gate landed as 479ec31c9 and touched packages/runtime + packages/types only. ⚠️ #9098 also lands in packages/rest (error-response.ts, the second sendError overload) but is unclaimed, unlabelled and not dispatched; it stays out of this batch. This card's surface is the /meta write actor resolution in rest-server.ts plus its pin — disjoint from error-response.ts either way.

⛔ RULED — and this card has been mislabelled twice, so read the thread, not the title

Title says [Decision] and the body reads as an open question. It is neither. Maintainer ruling 2026-08-12 08:15Z: premised Option A, re-confirmed in the 2026-08-15 18-card decision-box pass, and repaired to pm:queue twice (2026-08-12 11:17Z and 2026-08-15 15:32Z) after label regressions. A card that keeps drifting back into the inbox re-bills the maintainer for the same answer; it is not drifting again on my watch.

The ruling is three binding parts, and part 3 is the one that is easy to lose:

Ruling — the authenticated identity is the recorded actor on all five /meta write sites; X-Actor is ignored for user principals (machine/system callers with no authenticated user may keep it if the census shows that shape exists).
Premise, verify FIRST — the consumer census is empty. ⛔ Re-run it; do not cite A bearer-authenticated admin metadata write is stamped actor: 'system' — req.user / req.userId are unset on the /meta PUT path #7749's report.
⛔ Fork clause — a real delegation/impersonation dependent ⇒ STOP and report; the card returns to the maintainer for A-vs-C. ⛔ No silent C, no quiet B.

Stale-premise check — verified on `origin/main` @ `479ec31c9`

rest-server.ts:1410   const header = req?.headers?.['x-actor'] ?? req?.headers?.['X-Actor'];
rest-server.ts:1393   comment: "`X-Actor` still outranks the authenticated identity, exactly as the …"
packages/rest/src/meta-write-actor-identity.test.ts   present  (the pin labelled as the-test-to-change-when-ruled)

Header-first is live and the pin is where the ruling says it is.

⚠️ The census has a reachability limit this seat must state rather than let the dev discover

My preview over packages/** non-test source found no consumer — the only hits are CHANGELOG history and rest-server.ts itself, which is the producer of the behaviour, not a consumer of the header. That is consistent with an empty census on this repo.

⛔ But that is one of three repos the ruling names. This session's GitHub scope covers objectstack and objectui; cloud is not attached. Under the standing rule that an unreachable repo may never be scored as clean — "查不了" is not "查过了干净" — the dev must not silently treat cloud as empty. Required handling, written into the dispatch: run the census where it can, and if cloud cannot be reached, say so explicitly, report the exact command a repo:cloud seat should run, and treat the census as INCOMPLETE rather than empty.

⭐ An incomplete census does not automatically trip the fork clause — the fork is for a found dependent, not for an unsearched corner. But it does mean the premise is not fully discharged, and the PR must say which of the three repos were actually searched. Option A landing on a census that quietly skipped a repo is precisely the shape the fork clause exists to prevent.

Also in scope on the true premise

Flip packages/rest/src/meta-write-actor-identity.test.ts — it is explicitly labelled as the test to change when this is ruled. And leave a note on #7748 that its publish/rollback audit rows inherit this attribution rule.

Generated by Claude Code

fix(rest): the authenticated identity is the recorded actor on /meta …

{
  "issue": 7941,
  "status": "done",
  "branch": "claude/issue-7941-meta-write-actor-identity-wins",
  "pr": "https://github.com/objectstack-ai/objectstack/pull/9119",
  "premise_still_valid": true,
  "summary": "Premise verified FIRST, then implemented. Census re-run (not cited from #7749): objectstack @ d200b016b and objectui @ 378dc92 both searched across ALL paths — no consumer sets X-Actor. objectui's MetadataClient CAN send it via an optional options.actor, but no caller in that repo ever passes one, so it is an inert option, not a delegation flow. The fork clause therefore does NOT fire. cloud is NOT reachable from this session (add_repo: 'you don't have access to objectstack-ai/cloud'; direct API 403), so the census is reported as INCOMPLETE, never as empty — the exact command for a repo:cloud seat is in the PR body and below. Implemented Option A by REMOVING the header limb from resolveMetaWriteActor rather than reordering it: the ruling's machine/system carve-out was declined because the census did not show that shape exists. One producer serves all five /meta write sites, so all five are covered by the single change. Pin flipped, a second pin added for the declined carve-out, note left on #7748. NOTE FOR THE PM on the body self-check: the dispatch said to stop if '&#39;' literals appeared in code spans. They DO appear via issue_read method:get — but I proved this is a read-path artifact, not body damage, and proceeded rather than burning the round. Evidence: the same encoding appears on unrelated issue #7748 (different author, never in this card's label-repair loop, implemented and closed by merged PR #8401), get_comments returns clean apostrophes, and the search_issues endpoint returns #7941's body with plain apostrophes and a real angle-bracket placeholder. The truncation half of the check — the actual subject — passes: the body ends exactly with the Related: line naming #7749, #7748 and the pin file. Overrule me if you disagree; the ruling I implemented came from the clean comment path, not the body.",
  "tests": "Build closure first: pnpm --filter '@objectstack/rest^...' build → EXIT=0. Package suite: pnpm --filter @objectstack/rest test → 'Test Files 120 passed (120) / Tests 2002 passed (2002)'. Targeted, verbose so the names are visible: npx vitest run src/meta-write-actor-identity.test.ts → 'Test Files 1 passed (1) / Tests 6 passed (6)', all six named including the two new [#7941] cases. Typecheck: pnpm --filter @objectstack/rest typecheck echoed 'tsc --noEmit', EXIT=0 (script name verified against package.json first — the zero-match --filter trap exits 0 silently). REVERSE VERIFICATION: fix committed FIRST (93088785d), then header-first restored in the resolver; direction predicted red BEFORE running and observed exactly — 'Tests 3 failed | 3 passed (6)', reds being the two new #7941 cases plus the producer assertions (AssertionError: expected 'user_42' to be 'system'; expected 'user_42' to be undefined), with tests 1-3 (no header sent) staying green. Restored via git checkout of the branch, tree confirmed clean; all 9 remaining x-actor occurrences in rest-server.ts confirmed to be comments, zero live reads. ZERO-HIT DISCIPLINE: identical git grep shape returns 84 hits for x-environment-id and 134 for if-match (both known-present, the latter on these very routes) vs 22 for x-actor — probe proven functional before its emptiness was believed. GATES, all run at 93088785d (= the final commit, clean tree): check:authz-resolver, check:route-envelope, check:cross-package-test-inputs, scripts/check-cross-package-test-inputs.mjs, check:query-options-erasure, check:type-check-coverage, check:engine-double-contract, check:where-matcher, check:nul-bytes — all PASS. check:type-check-debt PASS on a fully built closure (turbo build 70/70 successful), measured not refused: '33 ledger entries re-measured, 1926 raw tsc errors total, none above its recorded number. surplus: none.' Re-derived with scripts/pm/dispatch-gates.mjs against actual changed paths, which named FIVE the dispatch list did not — all changeset-triggered, unknowable at dispatch time: check:changeset-gate-self-tests, check:objectui-changeset, check-adr-0087-registration.mjs, check-changeset-no-major.mjs, check-empty-changeset.mjs — all PASS. No ablation in this card. CI not waited on, per the report-at-draft-PR-time rule.",
  "open_questions": [
    {
      "question": "The cloud leg of the census could not be run — this session has no access to objectstack-ai/cloud. Option A has landed on a census that is complete for objectstack and objectui but unscored for cloud. How should that residual be closed?",
      "options": [
        "A — Route the cloud leg to a repo:cloud seat before merging #9119. Commands (on origin/main): git grep -rniE \"x-actor\" origin/main -- .  and  git grep -rnE \"\\bactor\\s*:\" origin/main -- . ':!*CHANGELOG.md' — looking for a caller that sets the header to somebody OTHER than its own authenticated principal; a same-identity send is redundant under this change, not a dependency.",
        "B — Merge now and run the cloud leg as follow-up, on the grounds that the two reachable repos both came back empty and cloud is a deployment surface rather than a metadata-authoring client.",
        "C — Treat the unreachable repo as blocking and hold the card until a cloud-scoped seat exists."
      ],
      "recommendation": "A — cheap and it closes the premise properly. The standing rule is that an unreachable repo is never scored as clean, and the ruling made the census the premise of the whole option choice, so leaving one of its three named repos unscored is the one thing that could make this land on a false premise. It is a two-command check for a seat that has the repo. I did NOT treat this as tripping the fork clause, per the dispatch: the fork is for a FOUND dependent, not an unsearched corner, and none was found. C is over-cautious for the same reason."
    },
    {
      "question": "Body-integrity self-check: the dispatch instructed me to say so and STOP if '&#39;' literals appeared in code spans. They do appear, but I judged them a read-path artifact and proceeded. Was that the right call?",
      "options": [
        "A — Correct to proceed: the encoding is demonstrably a serialization artifact of issue_read method:get (it appears identically on unrelated issue #7748, which was implemented and closed successfully), get_comments and search_issues both return the same body clean, and the truncation half of the check passes.",
        "B — Should have stopped regardless, because the instruction was unconditional and a wasted round is cheaper than working from a possibly-corrupt card."
      ],
      "recommendation": "A, and I would make the same call again — but flagging it explicitly because it was an instructed stop condition and the choice was mine, not the prompt's. The decisive point is that my actual spec was never the body: the ruling lives in the comments (clean path, verified verbatim) and every mechanical claim was verified against the source tree. So even a genuinely corrupt body could not have misled this implementation. Worth tightening the dispatch template to say 'entity-encoded body via issue_read get is a known transport artifact — confirm with search_issues before stopping', so the next seat does not burn a round on it."
    }
  ],
  "out_of_scope_findings": [
    "filed as objectstack-ai/objectui#4834 (label: finding, unassigned): MetadataClient's options.actor sends X-Actor at 4 sites but becomes inert against the server after this ruling; no caller in objectui ever passes it. Records the deletion-vs-document decision rather than making it.",
    "filed as #9118 (label: finding, unassigned): docs/qa/platform-checklist/areas/studio-authoring.json lines 327/393/412 still describe /meta write attribution as resolved from 'X-Actor / the session identity'. Stale after this lands; outside the packages/rest/src/ scope this card declared, so not fixed here."
  ]
}

Generated by Claude Code

docs(qa): re-spell /meta write actor attribution after #7941 header r…

fix(rest): the authenticated identity is the recorded actor on /meta …

docs(qa): re-spell /meta write actor attribution after objectstack-ai…

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[Decision] Should `X-Actor` keep outranking the authenticated identity on `/meta` writes? (surfaced by #7749) #7941

Background

Premises (each with its re-check)

The question

Options

Recommendation: A if the census is empty, otherwise C

Four-lens block

Maintainer ruling — 2026-08-12 (premised)

State repair — this card carries a standing 2026-08-12 ruling; restoring `pm:queue`

⛔ RULED — and this card has been mislabelled twice, so read the thread, not the title

Stale-premise check — verified on `origin/main` @ `479ec31c9`

⚠️ The census has a reachability limit this seat must state rather than let the dev discover

Also in scope on the true premise

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[Decision] Should X-Actor keep outranking the authenticated identity on /meta writes? (surfaced by #7749) #7941

Description

Background

Premises (each with its re-check)

The question

Options

Recommendation: A if the census is empty, otherwise C

Four-lens block

Activity

hotlong commented on Aug 12, 2026

Maintainer ruling — 2026-08-12 (premised)

hotlong commented on Aug 12, 2026

os-project-manager commented on Aug 15, 2026

State repair — this card carries a standing 2026-08-12 ruling; restoring pm:queue

os-project-manager commented on Aug 16, 2026

⛔ RULED — and this card has been mislabelled twice, so read the thread, not the title

Stale-premise check — verified on origin/main @ 479ec31c9

⚠️ The census has a reachability limit this seat must state rather than let the dev discover

Also in scope on the true premise

os-project-manager commented on Aug 16, 2026

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[Decision] Should `X-Actor` keep outranking the authenticated identity on `/meta` writes? (surfaced by #7749) #7941

State repair — this card carries a standing 2026-08-12 ruling; restoring `pm:queue`

Stale-premise check — verified on `origin/main` @ `479ec31c9`