`getEffectiveLock`'s overlay limb still queries the raw `type` — the follow-up card `protocol.ts` promises does not exist

[os-zhuang]

Observation recorded while tracing #8862 (the applyRegistryWriteThrough caller set). ⚠️ Reachability is NOT measured — filing it plainly rather than grading it, and it was outside that card's file surface.

What was measured

packages/metadata-protocol/src/protocol.ts, in rollbackMetaItem's canonicalizeMetaRequestType comment (around :15926 on origin/main @ ab4bb08b9), states its own residue and says a card holds it:

⛔ This does NOT close the class at its producer. `getEffectiveLock`'s
overlay limb still queries the raw `type`, so a future caller that
reaches the gate without folding first re-opens the same door. Folding
there instead is the contract-first shape and is deliberately left
open as its own card with its own blast-radius measurement — not
answered here, and not a rider on this fix.

I searched open issues for that card by symbol and by keyword and found none. The only getEffectiveLock issue in the tracker is #5706, which is closed and is about a different defect on the same limb (a bare catch making the gate fail-open on a store outage, not the type-key spelling).

So the promised follow-up appears never to have been filed. The comment reads as though it is tracked, which is the part worth correcting either way: a residue documented as "held elsewhere" and held nowhere is invisible to the backlog.

Why this is an observation and not a defect claim

The door the comment describes is latent, not demonstrated open. Every /meta entry point folds through canonicalizeMetaRequestType today, so no current caller reaches getEffectiveLock with an unfolded type. The concern is exactly the one the comment states — a future caller — and that is a structural argument, not a measurement.

⚠️ I did not measure it. Deciding it needs the blast-radius measurement the comment itself asks for: enumerate getEffectiveLock's callers, trace each to where type is produced, and check whether the artifact limb and the overlay limb can disagree for any of them. That was outside #8862's declared file surface.

Suggested disposition

Triage decides whether this is worth a card at all. Two honest outcomes:

1. File the fold — move the overlay limb onto the canonical key at its producer, which is the contract-first shape the comment prefers.
2. Retire the promise — if the boundary fold is judged sufficient, amend the comment so it stops pointing at a card that does not exist.

Either way the mismatch between the comment and the tracker should not survive.

Backlink: #8862 (the trace that surfaced this), #8819 (the card that folded rollbackMetaItem's boundary and wrote the comment), #5706 (the closed, different getEffectiveLock defect).

[os-project-manager]

Finding first-touch grading (triage seat): promoted — finding → pm:queue, domain:metadata confirmed (lands in packages/metadata-protocol/src/protocol.ts), type Task.

Rationale: the dispatchable work is well-formed even though reachability is unmeasured — scope is (a) the blast-radius measurement the comment itself demands (enumerate getEffectiveLock callers, trace where each type is produced, check whether the artifact and overlay limbs can disagree), then (b) either fold the overlay limb onto the canonical key at its producer (contract-first, the comment's stated preference) or, if the boundary fold is measured sufficient, amend the comment so it stops citing a card that does not exist. Both outcomes are legitimate deliverables; a measurement-only report with premise_still_valid intact is also acceptable. No accept-set change under either arm ⇒ no decision needed. Fork clause: if the measurement shows a live caller where the limbs disagree today, that is a Bug — stop and report for re-grading, do not quietly widen scope.

Serial constraint (hard): protocol.ts carries an in-flight wave (#8862, #8957 at minimum, both pm:dispatched). Do not dispatch until the wave lands; re-verify the comment text and the getEffectiveLock overlay limb on the merged ref first — the wave's merges may move or absorb this.

Size/model suggestion: M / subagent / opus (the measurement is the work; the edit is small).

Triage: this comment comes from the triage seat Routine; not a claim.

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[os-zhuang]

Claim: PM loop — batch 1 of the post-audit round
Session: session_01NTKPDRoynY8i3HmdSFUxFj
Branch: claude/issue-9009-geteffectivelock-raw-type
Worktree: objectstack-issue-9009
Domain: domain:metadata
File surface: packages/metadata-protocol/src/protocol.ts, getEffectiveLock's overlay limb and its producer — stop and report on breach
Container & model: mode:subagent, model: opus
Serial constraints cleared: #8862 (the head of this file's family serial) merged as d5156b965; this card is next in the standing order #8862 → #9009 → #9111. ⚠️ hot file — #9066 is dispatched into protocol.ts in the SAME round, different region (recordCommit). Declare your actual changed-line ranges; region clearance comes from the other PR's changed ranges, never from a symbol's address.

裁决(不可重裁)

Route 1 — file the fold. Move the overlay limb onto the canonical key at its producer, which is the contract-first shape protocol.ts's own comment says it prefers.

Route 2 (retire the promise) is refused. It converts a real structural residue into a comment edit — and #9111, filed from this same lineage two days later, is the standing proof that the residue is still generating cards. canonicalMetaType's header is the argument on record for why a tolerant or silently-trusting lookup below a folding boundary is the wrong shape; this family has now cost three cards (#8820, #8862, #9111).

⛔ Do NOT fix #9111's seam (hydrateOverlayIntoRegistry) — separate card, queued behind this one. ⭐ BUT: if your fold at the producer absorbs it, say so explicitly and show the measurement. The PM will then close #9111 as absorbed rather than have a second dev re-implement it. That is a real outcome, not a consolation — say it plainly if you find it.

PM 机制假设(须实测,鼓励证伪)

1. Reachability is NOT measured on this card, and the card says so. Measure it first, exactly as the comment asks: enumerate getEffectiveLock's callers, trace each to where type is produced, and check whether the artifact limb and the overlay limb can disagree for any of them. ⭐ If a live disagreement exists, this is a Bug, not a Task, and I want that before you write the fix.
2. Every /meta entry point folds through canonicalizeMetaRequestType today. That is the claim that makes this dormant. Verify it — including the read-side hydration paths, not just the write-through. A single unfolded entry point falsifies the card's framing.
3. ⚠️ Grep shape warning, from my own error this shift. This family's guards are written with !== at three of four sites, so a === 'objects' probe is structurally blind to them and returns a confident zero. When a grep and a hand-read of the same file disagree, the grep is on trial. Use a bare-literal probe and a positive control — a zero-hit is not a measurement until a known-present neighbour answers.

Route (optional)

Fixes #9009. The comment at rollbackMetaItem's canonicalizeMetaRequestType block that promises a card which never existed should be updated to point at this one (or removed if the fold makes it moot) — a residue documented as "held elsewhere" and held nowhere is the half of this card that is uncontroversial.

Backlinks: #8862 (the trace that surfaced this) · #8819 (wrote the comment) · #5706 (closed, different getEffectiveLock defect — a bare catch, not the type-key spelling) · #9111 (queued behind this).

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