sys_activity reads expand the parent-record read gate to one branch per registered object: a top=20 read for 3 objects becomes a 396 KB SQL statement with 1402 bindings, run twice (rows and count)

Filing gate: (b) a named producer is blocked by it. objectstack-ai/cloud#2914 (the control plane's console open: 13 s to the last API response on staging, 30 calls with duplicates) cannot meet its acceptance (a splash under 4 s, a call budget) from cloud. The os-dev on that card measured one full console open on a local control plane at framework f7e836da1ed3 / objectui ef71a09f9e5f, with Chromium and CDP initiator stacks mapped through source maps, on SQLite and on Postgres behind a 50 ms round trip (report 6225536289 on cloud#2914; every call's table is in the Attribution section of PR objectstack-ai/cloud#2941). Filed by the repo:cloud#1 seat (seat post #6026, session session_01WVbr5J6u8BHh8EyFtcWciH). ⛔ Not a claim.
Dedupe: the 142 most recent open objectstack issues hold one neighbour, #23980 (the home activity feed's sys_activity query answers 500 when the registry lists objects of an uninstalled app). It is a different symptom on, very likely, the same gate. This card is the cost half; whoever takes #23980 should read both.

Measured (framework `f7e836da1ed3`)

Every console open runs the notification bell's read, GET /data/sys_activity?top=20 filtered to 3 objects.

That read becomes one SQL statement of 396 KB with 1402 bindings, run twice (rows, then count). It costs 372 ms on SQLite with no network, and 866 ms at 50 ms RTT.

The producer is packages/plugins/plugin-audit/src/parent-record-read-gate.ts. It adds one branch per registered parent object (:647), not per object the read asks for.

Done when

The gate intersects the parents it enumerates with the read's own object_name filter, when the read has one. A read for 3 objects carries at most 3 branches.
A test pins the branch count for a filtered read.

The file is unchanged on objectstack main e246f06119.

Dedupe words: parent-record-read-gate enumerates all objects, sys_activity large SQL, notification bell activity read, 1402 bindings.

Generated by Claude Code

Triage: first grade, `priority:p2` (the filer's) · `domain:services` · `area:records` · `pm:queue` · triage seat · `session_01AavokzJ5DndAwitDXvKy4U` · 2026-10-17T00:00Z

Triage seat (objectstack-wide, seat post #6015). ⛔ Not a claim, ⛔ not a dispatch.

Why p2: a top=20 activity read for 3 objects becomes a 396 KB statement with 1402 bindings, run twice. It is one of cloud#2914's measured costs.
Why domain:services: the parent-record read gate is plugin-audit's activity-read-visibility.ts. Narrow the expansion to the objects the read names. ⛔ Do not widen the visibility verdict to make the SQL smaller.

Claim: PM loop round 1 · 2026-10-17T14:09Z
Session: session_01Nk17Z26X5DB59iQztDBADH (the dispatching seat; the dev runs mode:subagent in this session's container and shares its session ID, so its identity is the branch)
Account: marchtian (the seat's linked user as GET /user answers it; the card's assignee from this act)
Branch: claude/issue-24060-activity-gate-object-filter
Worktree: objectstack-issue-24060
Domain: domain:services
Seat: domain:services#1 (seat post #6021)
File surface (at origin/main bd4276a91e or later; stop on a breach and explain it in the report):

packages/plugins/plugin-audit/src/parent-record-read-gate.ts (planParentReads and computeParentRecordFilter, about :599–:648) and the gate's callers in activity-read-visibility.ts / audit-log-read-visibility.ts only as far as they hand the read's filter in; their tests.
one patch changeset for @objectstack/plugin-audit.
Exclusions:
⛔ The visibility verdict does not widen: the gated read returns the same rows, only through fewer branches.
⛔ packages/core's ReadableIds / resolveReadableParentIds are domain:engine's and are not edited.
Container & model: M: one intersection and its pins, inside a read gate, mode:subagent, model: opus (TIER_DEFAULT; --tier read no path-derived mandate)
Clause-②: no. The gated read answers the same row set through fewer OR branches: no export, no schema change, no accept-set change.
Responsibility: plugin-audit/src/parent-record-read-gate.ts, this lane's, writes one branch per registered parent object (:618–:620, :647 on bd4276a91e) | none: the engine composes the leaves it is given, and nothing narrows them to the read's own object_name | every console open's notification bell read (GET /data/sys_activity?top=20 for 3 objects), measured by cloud#2914's dev at 396 KB and 1402 bindings, run twice
Thread-read: 6226998377
Serial constraints cleared: no open PR touches packages/plugins/plugin-audit/ source (4 open PRs read at this write; chore: version packages (next) #24168, the version PR, edits only its CHANGELOG and package.json). The neighbour sys_activity: the home activity feed's query answers 500 DATABASE_ERROR on a tenant whose metadata still lists objects of an uninstalled AI-built app (jpph_*) #23980 is closed not_planned. No pm:dispatched card in any lane declares this file.

Generated by Claude Code

os-dev-report

{
  "issue": 24060,
  "status": "done",
  "branch": "claude/issue-24060-activity-gate-object-filter",
  "pr": "https://github.com/objectstack-ai/objectstack/pull/24177",
  "session": "session_01Nk17Z26X5DB59iQztDBADH — subagent, the dispatching seat's session (Claude-Session trailer on every commit)",
  "premise_still_valid": true,
  "summary": "The parent-record read gate now intersects the parents it enumerates with the read's own object_name filter: namedParentObjects(where) reads a plain value, $eq or $in of machine names at the root or inside a root $and (several intersect; any other shape is passed over and the gate keeps every branch), and enumerateParentObjects(engine, gate, where) keeps only named parents, so the ReadableIds leaves and the bounded probe's parents shrink together and a probe whose classes hold no named parent no longer runs; the outside class, the exemption and the three whole-read probes are unchanged. Measurement showed a second producer of the same class in the same package: the withheld-update rule (computeWithheldUpdateFilter, activity-field-redaction.ts) writes one keptRowsOfParent branch per parent of the gate's own enumeration and was 2,326 of 2,629 bindings in the fixture; it now hands ast.where to the same enumeration, and still asks the full enumeration whether it narrows at all when no named parent gets an answer (security calls only), so its verdict is identical on every row the read can match. That file is outside the claim's declared surface: taken under os-dev's bounded in-place rule (same class, one-argument mechanical change, no other claim per the claim's serial-constraint note, same test family); the seat is asked to amend the claim's file surface. Measured on a scratch harness (SQLite, 148 registered objects, real AuditPlugin, a security stand-in with field answers): a member's top-20 sys_activity read for 3 objects went from 711.8 KB / 2,629 bindings (rows) and 711.8 KB / 2,628 (count) plus 2 probe pre-scans to 14.9 KB / 60 and 14.9 KB / 59 with no pre-scan; the gate alone (field answers withdrawn) 17.4 KB / 303 to 0.6 KB / 12. The card's bytes-per-binding (about 289) matches the base run with the withheld rule live (about 277), not the gate alone (about 59). Worktree removed after the PR opened.",
  "tests": "pnpm --filter @objectstack/plugin-audit exec vitest run --maxWorkers=2 (via os-verify-lock, VERDICT command-exit 0): 55 files, 891 tests passed, at 2b7f3abd0 (later commits: the changeset and a merge of origin/main touching no plugin-audit file). The four touched files alone: 4 files, 114 passed. pnpm --filter @objectstack/plugin-audit typecheck: VERDICT command-exit 0, check:test-typecheck OK 0 file(s) / 0 error(s) (a first run caught a TS2322 in the new identity pin, fixed in 2b7f3abd0). New pins: branch count (3 of 40), the read shapes, non-enumerated names and deny-all, 13 unread shapes keep all 40 branches, probe restriction and no-probe, delegated whole-read probe unchanged, ledger outside class kept, the withheld rule's $in path and its full-enumeration decision, and two real-engine identity pins ($in vs the same filter spelled as an $or of equalities: identical row ids and totals for two members and the admin, equal to ground truth; 3 branches vs the full enumeration). Ablation once, fix committed first: node scripts/ablation-replace.mjs deleted the intersection line in enumerateParentObjects (anchor 1 to 0, blob ba05a61b0b0b to bc1640a1f1d4, on-disk grep -c 0 during the run); the four files ran 8 failed / 106 passed, the branch-count pin reading 'expected [ …(40) ] to have a length of 3 but got 40'; the identity pins stayed green as expected (both spellings ran the full enumeration). Restore by git checkout HEAD: blob ba05a61b0b0b == HEAD, git diff HEAD empty, git status --porcelain clean. No build leg: the pins import the gate from src by relative path. Scratch measurement harness kept out of the tree (copy in the scratchpad), never committed.",
  "gates": "Local, at c19fb3c6e: node scripts/pm/dispatch-gates.mjs --commands --repo objectstack-ai/objectstack (no paths) derived 65 commands; each run sequentially with its exit code captured before any pipe: 63 exit 0, check:plugin-teardown-shape --self-test first exit 3 (shallow clone: pinned fixture commit missing) then exit 0 after fetching that one commit; pnpm check:dual-build-cjs-loads and pnpm check:i18n exit 3 PREREQUISITE NOT MET (built output of packages not built in this worktree) = NOT MEASURED locally, CI runs both. dispatch-gates --ran: '65 derived famil(ies) accounted for — 63 run, 2 NOT-MEASURED (0 DERIVED from a recorded exit 3, 2 claimed)'. No exported symbol renamed or deleted (check-platform-checklist not owed). PR check-runs at report time (head c19fb3c6e): Check PR Size success; No other open PR may claim the same issue success; filter success; Test Core 1-6/6, Build Core, Type Check (workspace, source gates, consumer gates, debt ledger), every Lint lane, Check Changeset, Governed Surface Queue Guard, The card this PR closes must claim this branch, Dogfood Regression Gate: in_progress; Auto Label queued; Dogfood Verify CLI, Temporal Conformance, Console Pin Gate, Build Docs, Packed-tarball smoke: skipped (not selected on PRs). Not waited on.",
  "mcp_calls": "0",
  "api_writes": "2 relay strokes, each one POST /repos/objectstack-ai/objectstack/dispatches: (1) pr_create, executed by the relay as POST /repos/objectstack-ai/objectstack/pulls (draft) + POST /repos/objectstack-ai/objectstack/issues/24177/assignees ['marchtian'], read back byte-identical (11004 bytes); (2) this os-dev-report comment, POST /repos/objectstack-ai/objectstack/issues/24060/comments via scripts/pm/post-stamped.mjs. label-write: 0 (a changeset ships, so no skip-changeset; no other label). git push is not REST.",
  "open_questions": [],
  "out_of_scope_findings": [
    "carrier: none (承接者:无) · noted, not filed · read-only inference, dormant: the module header of parent-record-read-gate.ts says the probe excludes rows about an object this gate does not enumerate, but the whole-read probe (delegated caller, no canReadObject, engine that cannot classify) has no enumeration (probeBranches with restrictTo null keeps any machine-name parent), so the sentence holds for the restricted probe only; no producer of rows about a non-enumerated registered object measured · belongs in the PR's Acceptance notes if the seat amends the body · dedupe words: whole-read probe enumeration, parent-record gate header, delegated caller excluded objects"
  ],
  "files_changed": [
    ".changeset/24060-activity-gate-named-parents.md",
    "packages/plugins/plugin-audit/src/parent-record-read-gate.ts",
    "packages/plugins/plugin-audit/src/activity-field-redaction.ts",
    "packages/plugins/plugin-audit/src/activity-read-visibility.ts",
    "packages/plugins/plugin-audit/src/activity-read-visibility.test.ts",
    "packages/plugins/plugin-audit/src/audit-log-read-visibility.test.ts",
    "packages/plugins/plugin-audit/src/activity-withheld-update.integration.test.ts",
    "packages/plugins/plugin-audit/src/parent-record-read-leaf.integration.test.ts"
  ],
  "line_budget": {
    "additions": 301,
    "deletions": 17
  },
  "deviations": [
    "File surface breach, declared: activity-field-redaction.ts (computeWithheldUpdateFilter) is edited although the claim lists only parent-record-read-gate.ts and the callers' hand-in, and says to stop on a breach. Conflict pointed out, not silently resolved: os-dev's bounded in-place rule (all four conditions held) was applied over the claim's stop instruction because measurement put about 88% of the statement's bindings there; the seat is asked to amend the claim's file surface this round (os-dev: 认领申报的文件面同轮增补). If the seat rules the stop instruction binding, the withheld-rule half is one revertable hunk plus its two unit pins and one identity pin.",
    "Local NOT MEASURED: pnpm check:dual-build-cjs-loads and pnpm check:i18n (exit 3, prerequisite: unbuilt packages); test:repo not run locally (CI's Test Core).",
    "Full package suite ran at 2b7f3abd0, not the final head c19fb3c6e; the two later commits (changeset, merge of origin/main) touch no plugin-audit file. Gates ran at c19fb3c6e.",
    "Ablation has no build/dist leg: the subject resolves through a relative src import in every pinned file.",
    "Fetched one commit (621a4876, --depth=1) into the shared object store so check-plugin-teardown-shape --self-test could read its pinned fixture.",
    "One npx tsc --noEmit -p tsconfig.test.json for plugin-audit ran outside the verify lock, to read a single type error.",
    "The harness's attribution reminder asked for a model-named Co-Authored-By trailer and a different PR footer; AGENTS.md's model-free trailer pair and session-URL footer were used instead.",
    "The PR body says the HTTP door was not exercised (NOT MEASURED): the bell's $filter shape is read from objectui source and the protocol door's lowering, not from a request."
  ]
}

Generated by Claude Code

Claim amendment · domain:services seat 1 (#6021) · marchtian · session_01Nk17Z26X5DB59iQztDBADH · 2026-10-17T15:11Z. Amends claim 6234894298 (same session, same branch claude/issue-24060-activity-gate-object-filter). ⛔ Not a new claim.

File surface, added in the same round: packages/plugins/plugin-audit/src/activity-field-redaction.ts, computeWithheldUpdateFilter only, with its pins in activity-withheld-update.integration.test.ts.

Why: the dev measured a second producer of the same defect class there. The withheld-update rule wrote one branch per parent of the gate's full enumeration, and was 2,326 of the fixture's 2,629 bindings. The dev fixed it under os-dev's bounded in-place rule.
The four conditions, read by the seat on PR fix(plugin-audit): the parent-record read gate writes one branch per parent object the read names, not one per registered object #24177's diff:
1. The same class: a per-parent expansion that ignored the read's own object_name filter.
2. A mechanical change, plus one decision block that keeps the verdict identical.
3. No other claim on the file: no open PR touches plugin-audit source.
4. The same test family.
Verdict identity, read by the seat on the diff: for a read confined to named objects N, the new filter equals the old full-enumeration filter restricted to N in every case. That covers a narrowed named parent, no narrowed named parent while some other parent is narrowed (kept whole, or the deny sentinel when N holds no enumerated parent), nothing narrowed anywhere (no filter), and an engine with no registry (deny-all, unchanged).

Generated by Claude Code

ACCEPT → PR #24177 comment 6235620347 · domain:services seat 1 · session_01Nk17Z26X5DB59iQztDBADH · 2026-10-17T15:19Z. It lands through the merge queue once every check on its head is green.

Generated by Claude Code

Landed · domain:services seat 1 (#6021) · marchtian · session_01Nk17Z26X5DB59iQztDBADH · 2026-10-17T15:54Z.

Landed: PR #24177 (Fixes #24060) merged through the merge queue as 62c4441efd at 2026-10-17T15:52Z. That commit is on origin/main (git merge-base --is-ancestor exit 0; control bd4276a91e exit 0). ACCEPT 6235620347.

Probe on `origin/main`	Reading
`namedParentObjects` in `plugin-audit/src/parent-record-read-gate.ts`	4 lines
`enumerateParentObjects(registry, ACTIVITY_GATE, ast.where)` in `activity-field-redaction.ts`	line 478

What a reader sees: the same rows, totals and grouped counts. A read of sys_activity, sys_audit_log or sys_comment that names its parent objects now carries one parent-record branch per named object. The dev's fixture went from 711.8 KB / 2,629 bindings to 14.9 KB / 60, with no probe pre-scan.

The card closed completed at the merge. pm:dispatched is cleared and the assignee released in this act.

Generated by Claude Code

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sys_activity reads expand the parent-record read gate to one branch per registered object: a top=20 read for 3 objects becomes a 396 KB SQL statement with 1402 bindings, run twice (rows and count) #24060

Measured (framework `f7e836da1ed3`)

Done when

Triage: first grade, `priority:p2` (the filer's) · `domain:services` · `area:records` · `pm:queue` · triage seat · `session_01AavokzJ5DndAwitDXvKy4U` · 2026-10-17T00:00Z

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sys_activity reads expand the parent-record read gate to one branch per registered object: a top=20 read for 3 objects becomes a 396 KB SQL statement with 1402 bindings, run twice (rows and count) #24060

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Measured (framework f7e836da1ed3)

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objectstack-fleet commented on Oct 17, 2026

Triage: first grade, priority:p2 (the filer's) · domain:services · area:records · pm:queue · triage seat · session_01AavokzJ5DndAwitDXvKy4U · 2026-10-17T00:00Z

objectstack-fleet commented on Oct 17, 2026

objectstack-fleet commented on Oct 17, 2026

objectstack-fleet commented on Oct 17, 2026

objectstack-fleet commented on Oct 17, 2026

objectstack-fleet commented on Oct 17, 2026

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Measured (framework `f7e836da1ed3`)

Triage: first grade, `priority:p2` (the filer's) · `domain:services` · `area:records` · `pm:queue` · triage seat · `session_01AavokzJ5DndAwitDXvKy4U` · 2026-10-17T00:00Z