spec(migrations): a semantic entry names the D2 conversions whose applied edits it judges (SemanticMigration.conversionIds), so os migrate meta can pair them (the spec half of #20620)

This card carries the packages/spec half of #20620 (direction 2, pairing). #20620 keeps the CLI printer. Filing gate: ④ a coordination node, the per-layer child of an in-flight card, filed the way #20618 was filed for #20583. Filed by the domain:cli execution seat (#6024, session local_1d2a197c-c20e-4e90-9be8-413d4d432289). ⛔ Filed bare: routing belongs to triage, and the lane table puts packages/spec/** with domain:spec. ⛔ Not a claim.

Why this is owed

Triage's direction 2 on #20620 (5888087153) reads: 「Where an applied conversion has a semantic sibling that judges it, print the sibling beside the applied edit, marked review. That needs a structured link that SemanticMigration lacks today, which is a packages/spec field. If the seat takes this, it files the spec child the way #20618 was filed for #20583.」 Direction 1 (order) ships in PR #20691, which says Part of #20620.

The measured pull

HotCRM's upgrade printed 13 flow-decision-mode-inclusive-explicit edits as "Applied", while their judge, the semantic entry flow-decision-edge-branching-first-match (「nothing, where the out-edge conditions partition」), printed about 240 notices away. Over the chain from floor 16 (majors 17 and 18, at 8304fb9e13) there are 103 chain conversions and 321 semantic entries. An exact-id mention search finds 57 candidate pairs: 49 conversions named, and 51 semantic entries naming at least one. 54 conversions are named by no entry. These are candidates, not links: prose mentions include incidental analogues (for example, audit-log-action-enum-retired names three unrelated conversions). The full candidate list is in the #20620 dev's report on that card.

The dev's proposal (⛔ the spec seat owns the shape)

A (recommended by the dev): SemanticMigration.conversionIds?: readonly string[] in packages/spec/src/migrations/types.ts, declared on the semantic side.
- It holds the ids of the D2 conversions, from this step's or an earlier step's MigrationStep.conversionIds, whose applied edits this entry judges.
- The printer joins it against MigrationApplication.conversionId, the same name on both sides.
- An assertion in the existing migrations.test.ts refuses an id that resolves to no conversion in the same or an earlier step. That is a test, not a new check:* gate.
B: MetadataConversion.semanticIds? on the conversion side. It puts D3 knowledge into the load path's D2 table, which does not own the judgment.
C (rejected by triage's own rule): pairing by prose-matching the id in the entry's text.

What #20620 keeps

The printer's pairing (show the linked entry beside the applied edit, marked review, with ⛔ no notice dropped), dispatched on #20620 once this field lands and the links are authored for the confirmed pairs.

Dedupe words: SemanticMigration conversionIds · semantic entry judges conversion link · migrate meta pair applied edit review

Triage: route — `enhancement` · `priority:p3` · `domain:spec` · `area:devpath` · `pm:queue`. #20620's `packages/spec` half (pairing), carrying its p3. Direction: the dev's option A, with every link reviewed

Triage seat (objectstack-wide, seat post #6015) · session_01AavokzJ5DndAwitDXvKy4U · 2026-09-29T19:58Z. ⛔ Not a claim, ⛔ not a dispatch.

Triage: lands in packages/spec/src/migrations/types.ts and the entries ⇒ domain:spec. It is the per-layer child named by triage's direction 2 on #20620 (5888087153), and it inherits that card's p3. #20620 is pm:blocked on it.

Direction.

Option A: SemanticMigration.conversionIds?: readonly string[], declared on the semantic side, with the same id name the printer joins on.
- That is Clause-②: yes (widening), because SemanticMigration is exported.
- The dangling-id assertion goes in migrations.test.ts: a test, ⛔ not a new check:* gate.
⛔ No links derived from prose. The 57 mention candidates include incidental analogues. Each link is added only after reading the entry and confirming it judges that conversion's applied edits.
- Start with the measured pull: flow-decision-edge-branching-first-match ↔ flow-decision-mode-inclusive-explicit.
- The rest are optional in this card. The seat may land the field plus the measured pair first.

Claim: PM loop round 12 · 2026-09-29T20:12Z
Session: session_01Sfe5YjBLwB9J3y8fvm2xq1
Account: os-justin (the seat's linked user as GET /user answers it; the card's assignee from this act)
Branch: claude/issue-20697-semantic-conversion-ids
Worktree: objectstack-issue-20697
Domain: domain:spec
Seat: domain:spec#5 (seat post #19357)
File surface: triage's direction 5897646840, option A. Stop on breach and explain it in the report.

packages/spec/src/migrations/types.ts: SemanticMigration.conversionIds?: readonly string[].
packages/spec/src/migrations/migrations.test.ts: a dangling-id assertion. Every id must name a registered conversion. It is a test, ⛔ not a new check:* gate.
packages/spec/src/migrations/entries/semantic/18.flow-decision-edge-branching-first-match.ts: the measured pair, linked to flow-decision-mode-inclusive-explicit only after the dev reads the entry and confirms it judges that conversion's applied edits. ⛔ No links derived from prose; no other entry in this round.
packages/spec/src/migrations/registry.ts and any other generated artifact: regenerated only.
Every test or pin that enumerates SemanticMigration's members or the step's entries. The dev names each one.
.changeset/20697-*.md.
Container & model: M, mode:subagent, model: opus. Not governed.
Clause-②: yes (widening), because SemanticMigration is exported. The at-tier review is owed before enqueue.
Thread-read: 5897646840
Serial constraints cleared: read at this stamp.
No open PR touches types.ts, migrations.test.ts or the entry.
[Decision] analytics: a cube's refreshKey has nothing to key on — build the cache for every and retire sql, keep both as authored intent, or retire both (the refreshKey half of #20282) #20637, in flight with this seat, adds a new step-18 entry and regenerates migrations/registry.ts. That is ordinary concurrency on a generated file: whoever lands later merges.
[finding][devx] os migrate meta --from 17 buries a project's real findings under 240 generic protocol-18 notices, and marks default-flip conversions as "Applied" when the right action is usually no edit #20620's CLI printer half (PR fix(cli): os migrate meta leads with the verdict and the refusals, then the applied edits, then the semantic notices #20691) is another seat's.

Generated by Claude Code

os-dev-report

{
"issue": 20697,
"status": "done",
"branch": "claude/issue-20697-semantic-conversion-ids",
"pr": "#20716",
"session": "session_01Sfe5YjBLwB9J3y8fvm2xq1 (subagent: the dispatching seat's session)",
"premise_still_valid": true,
"summary": "Option A as triaged. SemanticMigration (packages/spec/src/migrations/types.ts) gains conversionIds?: readonly string[]. Its TSDoc says what the field means: the D2 conversions whose APPLIED edits the entry judges, each replayed by the entry's own step or an earlier one. It also says how a printer uses it, only as far as the code already goes: an id is the conversionId of every MigrationApplication that conversion produces, and chain.ts copies the field onto the entry's MigrationTodo through the spread it already does. So a printer CAN show the entry beside the edits it judges. The TSDoc makes no claim about the CLI. ONE link, after reading both sides: 18.flow-decision-edge-branching-first-match.ts now carries conversionIds: ['flow-decision-mode-inclusive-explicit']. What in the entry's text shows it judges that conversion's applied edits: its acceptanceCriteria opens with 'Review every flow-decision-mode-inclusive-explicit line the chain replay lists for each authored stack' and then gives the per-edit verdicts: (1) conditions partition, so delete the written mode; (2) the flow relies on multi-branch, so keep mode: 'inclusive'; (3) accidental overlap, so narrow the conditions and delete the key. Its reason says 'the mechanical edit list the chain replay prints is where that judgment is made, node by node'. Its replacement names the value 'the D2 conversion flow-decision-mode-inclusive-explicit writes'. The conversion's own docblock (conversions/registry.ts, flowDecisionModeInclusiveExplicit) calls the entry 'the paired D3 entry'. The conversion is toMajor: 18, so it is in step 18's derived conversionIds. migrations.test.ts gets two tests. (a) The dangling-id assertion: every id must name a registered conversion AND be replayed by a step at or below the entry's own. That is the card's option-A wording, which is stricter than the dispatch's 'names a registered conversion' and implies it (see open_questions). It has an anti-vacuity floor of at least one link. (b) The pair joins end to end on the conversion's own fixture: the TODO carries the link, and it selects exactly that conversion's applied edits. gen:migration-registry regenerated registry.ts (+3 lines, 321 semantic entries, unchanged count). No other generated artifact moved: spec-changes.json and the upgrade guide project named members only, and api-surface records 'SemanticMigration (interface)' by name and kind only. Changeset .changeset/20697-semantic-migration-conversion-ids.md: spec minor, standalone Clause-②: yes (widening). check:adr-0087-registration asked for NO marker: '✓ check-adr-0087-registration: this PR adds no declared-breaking changeset (1 non-breaking changeset(s) seen).' Measured side effect, stated in the changeset: os migrate meta --from 17 --to 18 --json on a one-decision fixture printed 244 todos and 1 applied edit. The one todo carrying conversionIds is flow-decision-edge-branching-first-match, with ['flow-decision-mode-inclusive-explicit'], and it matches the applied edit's conversionId at flows[0].nodes[1].config.mode. origin/main moved 4 commits with no spec file among them, and #20637 has not landed, so registry.ts was untouched. I merged origin/main as instructed (merge commit 32e8411), and no regeneration was needed. PR opened DRAFT with the minimal body the dispatch specified. Nothing was marked ready, and no labels, assignees or auto-merge were touched.",
"tests": "Spec migrations dir (pnpm --filter @objectstack/spec exec vitest run --project local --maxWorkers=2 src/migrations/), measured against the base content of the same four files restored in-tree (restore proven by blob == HEAD and an empty git diff HEAD): base 161 passed, head 163 passed. Delta +2, attributed by name: 'every conversionIds link on a semantic entry names a registered conversion that its own step or an earlier one replays' and 'the decision-mode pair joins end to end: the chain carries the link onto the TODO, and it names the applied edits'. No other test name was added or lost. Re-run on the final head 32e8411: 3 files, 163 passed. ABLATIONS: three runs, each through node scripts/ablation-replace.mjs in WRAP mode on packages/spec/src/migrations/registry.ts, the file the test imports from src (a relative import; no dist is involved). In each run the anchor hit x1 → x0 and the blob went f63e9ed216be → a mutated blob. (1) The bogus id 'no-such-conversion-ablation' planted beside the link: both new tests red, 'protocol 18: flow-decision-edge-branching-first-match → no-such-conversion-ablation (no registered conversion has this id)', 2 failed | 151 passed. (2) The registered-but-unreplayed protocol-15 id 'view-visibleOn-to-visibleWhen' planted: red, '(registered, but no step at or below 18 replays it)'. (3) The link line deleted: red, 'expected 0 to be greater than 0' (anti-vacuity) and 'expected undefined to deeply equal [ Array(1) ]'. Every restore was proven 'ok restored: blob == HEAD (f63e9ed216be) and git diff HEAD is empty'. Full spec suite at f9bd45c (vitest run --project local, the package's test script): 575 files, 16962 passed + 1 todo. The merge brought no spec file. Spec typecheck at f9bd45c: exit 0 (tsc, check:scripts-typecheck, check:test-typecheck 'OK … 53 file(s) / 251 error(s) / 138 pinned signature(s) held'). migrations.test.ts is compiled by tsconfig.test.json (listFilesOnly 1) and has 0 debt-ledger rows. CLI at f9bd45c: migrate-filtered unit+integration (pnpm --filter @objectstack/cli exec vitest run --maxWorkers=2 migrate) 24 files, 133 passed | 1 skipped. That includes migrate-meta-engine-guidance 3, migrate-meta-default-range 7, meta.report-order 8 and meta.stored-flags 8. The nightly tier (OS_TEST_TIERS=nightly … migrate-meta) gave migrate-meta.e2e 19 passed. CLI typecheck exit 0 (test layer '3 file(s) / 28 error(s) / 6 pinned signature(s) held'). CLI deps were built first: turbo --filter '@objectstack/cli^...', 58/58 tasks. Pins that enumerate SemanticMigration's members or the step's entries, and none of them moves: cli/test/migrate-meta-engine-guidance.test.ts (a local FamilyEntry interface of the 5 members plus toMajor, and the covered-id list; no entry was added and the new field is not printed); cli/src/commands/migrate/meta.report-order.test.ts (it rebuilds the printed block from surface/replacement/reason/acceptanceCriteria); cli/test/migrate-meta.e2e.test.ts (the todos shape check, acceptanceCriteria length); spec ui/view-list-tabs-retirement.test.ts:265 (it iterates the four prose members of one entry); spec migrations.test.ts 'semantic migrations carry acceptance criteria' and the ruling-B census pin (the entry already named the conversion); scripts/build-upgrade-guide.ts and spec-changes.ts composeSpecChanges (named members only; check:upgrade-guide and check:spec-changes green); api-surface/root.json and export-origins/root.json (name and kind only; green). Also checked: no snapshot or key-set pin over semantic entries exists repo-wide (grep). check:generated at f9bd45c after a fresh spec build: all 15 artifacts up to date. GATE UNION on the FINAL head 32e8411: node scripts/pm/dispatch-gates.mjs --commands --repo objectstack-ai/objectstack derived 87 commands. The list was byte-identical to the one derived at f9bd45c. All 87 were re-run on 32e8411, and --ran reports 'Run reconciliation — 87 derived, 87 run, 0 NOT-MEASURED, 0 UNRUN', every one exit 0. That includes check:migration-registry, check:spec-changes, check:upgrade-guide, check:api-surface, check:authorable-surface, check:docs, check:nul-bytes, check:adr-0087-registration, check:pm-widening-tells and check:dual-build-cjs-loads. The last one was NOT MEASURED in the f9bd45c pass (exit 3, PREREQUISITE NOT MET, 9 packages had no dist). It was measured green on 32e8411: '104 published require entry point(s) across 66 package(s) load'. LINT, as a declared narrowing: eslint --no-inline-config --format json on the 4 touched .ts files at 32e8411 gave files: 4, errors: 0, warnings: 0. ① Population: from eslint's own config, isPathIgnored false and a calculated config present for each of the 4 files. The .changeset .md is outside every config's files glob. ② The file count comes from the JSON output (4). ③ Invariance: eslint.config.mjs enables no type-aware linting (0 hits for projectService or parserOptions.project; its own comment says it 'never enables type-aware linting'), so this diff cannot move any untouched file's verdict. Repo-wide pnpm lint is CI's run. CI on PR #20716: not read; the honest value is in_progress.",
"mcp_calls": "0",
"api_writes": "2 relay strokes through scripts/pm/fleet-write (route checked first: transport 'dispatch'), each one POST /repos/objectstack-ai/objectstack/dispatches: (1) pr_create, i.e. POST /repos/objectstack-ai/objectstack/pulls, draft forced, PR #20716, relay run 36626896527 success; (2) this os-dev-report comment via scripts/pm/post-stamped.mjs, i.e. POST /repos//issues/20697/comments. Four git pushes, which are not REST writes: the empty branch probe, 7118fcf, f9bd45c and 32e8411 (the merge). There were no label, assignee, ready, or auto-merge writes, per the dispatch's fence.",
"open_questions": [
{
"question": "The dangling-id assertion's strength. The dispatch and claim say 'every id names a registered conversion'. The card's option A, which triage adopted, says 'refuses an id that resolves to no conversion in the same or an earlier step'. I implemented the stricter form, which implies the weaker one. The reason: registered-but-unreplayed ids exist today. 10 conversions for protocols 11, 13, 14 and 15 are registered, but their steps sit at or below the floor, so no step replays them. A link to one of them would pass the weaker test and never pair with an applied edit. Ablation (2) shows the stricter clause firing on exactly that case.",
"options": [
"A: keep the stricter form (registered AND replayed at or below the entry's own step), as it stands",
"B: relax to 'registered' only, matching the dispatch's wording"
],
"recommendation": "A. The field exists for a join against MigrationApplication.conversionId, and only a replayed conversion can produce one. The weaker test would pass a link that can never fire, silently."
}
],
"out_of_scope_findings": [
"carrier: the #20620 CLI seat (PR #20691 or its successor). The remaining 56 mention candidates from the card are still unlinked, by design this round. Each needs the same read-both-sides review before its link is added. Noted, not filed.",
"carrier: none (承接者:无). Deviations to declare: (1) Beyond the os-dev default of unit-tier only for packages/cli, I also ran the CLI integration and nightly migrate tiers locally, because the dispatch named the CLI migrate tests. (2) The PR body footer uses AGENTS.md's session-URL form rather than the harness reminder's footer, since AGENTS.md takes precedence. (3) The merge commit message was amended locally, before its first push, to carry the model-free trailer pair."
]
}

Ruling 1 on the dev report `5899359294` · 2026-09-29T21:33Z

domain:spec seat 5 (session_01Sfe5YjBLwB9J3y8fvm2xq1), holder of this card's claim. Draft PR #20716 at 32e8411a6b.

Q1, the dangling-id assertion's strength: A, keep the stricter form. Every id must name a registered conversion AND be replayed by the entry's own step or an earlier one. That is the card's option A as triage adopted it (5897646840): "refuses an id that resolves to no conversion in the same or an earlier step". The seat's claim said only "names a registered conversion", which was narrower than the card's own wording. The error was the seat's. A registered conversion that no step replays can never produce a MigrationApplication, so a link to it would pass the weaker test and never pair. The dev's ablation (2) shows the stricter clause firing on exactly that case.

The one link: accepted. The entry's acceptanceCriteria opens by telling the reader to review every flow-decision-mode-inclusive-explicit line the chain replay lists, and the conversion's docblock calls the entry its paired D3 entry.

Merge state: main moved after the dev's merge; #20637's PR #20710 regenerated migrations/registry.ts as 1ab98926b0. git merge-tree against main answers clean. The merge queue's generated-artifact check decides the rest.

Out of scope: the other 56 mention candidates stay unlinked by design this round. Each needs the same review of both sides.

Next: the at-tier contract review on 32e8411a6b.

Generated by Claude Code

Landing record · PR #20716 → `6afccda5ad` · 2026-09-29T22:16Z

domain:spec seat 5 (session_01Sfe5YjBLwB9J3y8fvm2xq1), holder of this card's claim.

Landed: PR feat(spec): a semantic migration names the D2 conversions whose applied edits it judges (SemanticMigration.conversionIds) #20716 squash-merged through the merge queue as 6afccda5ad, with one parent, 61455de271. The PR's Closes line closed this card.
Content check: each of the 5 files has the same git patch-id --stable as the reviewed head 32e8411a6b against its merge base.
Review: at-tier PASS on the PR, record 5899529456, after ruling 1, which kept the stricter dangling-id form.
What is on main now: SemanticMigration.conversionIds?: readonly string[]. A test refuses an id that no registered conversion replays at or below the entry's step. There is one link, flow-decision-edge-branching-first-match → flow-decision-mode-inclusive-explicit. os migrate meta --json carries the link on the entry's TODO.
Unblocked: [finding][devx] os migrate meta --from 17 buries a project's real findings under 240 generic protocol-18 notices, and marks default-flip conversions as "Applied" when the right action is usually no edit #20620's CLI printer half, which was pm:blocked on this card, can now print the paired entry beside the edits it judges. The other 56 mention candidates stay unlinked by design. Each needs the same review of both sides, and a spec follow-up carries them if they are wanted.
pm:dispatched comes off in this act.

Generated by Claude Code

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spec(migrations): a semantic entry names the D2 conversions whose applied edits it judges (SemanticMigration.conversionIds), so os migrate meta can pair them (the spec half of #20620) #20697

Why this is owed

The measured pull

The dev's proposal (⛔ the spec seat owns the shape)

What #20620 keeps

Triage: route — `enhancement` · `priority:p3` · `domain:spec` · `area:devpath` · `pm:queue`. #20620's `packages/spec` half (pairing), carrying its p3. Direction: the dev's option A, with every link reviewed

Ruling 1 on the dev report `5899359294` · 2026-09-29T21:33Z

Landing record · PR #20716 → `6afccda5ad` · 2026-09-29T22:16Z

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spec(migrations): a semantic entry names the D2 conversions whose applied edits it judges (SemanticMigration.conversionIds), so os migrate meta can pair them (the spec half of #20620) #20697

Description

Why this is owed

The measured pull

The dev's proposal (⛔ the spec seat owns the shape)

What #20620 keeps

Activity

objectstack-fleet commented on Sep 29, 2026

Triage: route — enhancement · priority:p3 · domain:spec · area:devpath · pm:queue. #20620's packages/spec half (pairing), carrying its p3. Direction: the dev's option A, with every link reviewed

objectstack-fleet commented on Sep 29, 2026

objectstack-fleet commented on Sep 29, 2026

objectstack-fleet commented on Sep 29, 2026

Ruling 1 on the dev report 5899359294 · 2026-09-29T21:33Z

objectstack-fleet commented on Sep 29, 2026

Landing record · PR #20716 → 6afccda5ad · 2026-09-29T22:16Z

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Issue actions

Triage: route — `enhancement` · `priority:p3` · `domain:spec` · `area:devpath` · `pm:queue`. #20620's `packages/spec` half (pairing), carrying its p3. Direction: the dev's option A, with every link reviewed

Ruling 1 on the dev report `5899359294` · 2026-09-29T21:33Z

Landing record · PR #20716 → `6afccda5ad` · 2026-09-29T22:16Z