chore: release v0.12.0

[REPPL]

Release v0.12.0, cut by autonomous run A. When this merges, the tagging workflow reads the dated section and tags v0.12.0.

This is a breaking release. Two things stop working, and docs/how-to/upgrade-to-v0.12.0.md lists every replacement:

• The build loop says stage, not step, for what a lane goes through. The JSON fields performed, step, refusal.step and lane.step become performed_stage, stage, refusal.stage and lane.stage. The run state file moves to schema version 8: a run begun on v0.11.1 is read as it stands and rewritten at version 8 by its next step, which an older abcd cannot read, so finish a run with the abcd that will keep driving it.
• The command spellings kept for one release are gone. abcd ahoy dry-run, abcd ahoy identity-check, abcd version, abcd docs lint and abcd site check exit 2 as unknown commands; use abcd ahoy --dry-run, abcd ahoy --identity, abcd --version (and abcd update --check), abcd lint docs and abcd lint site. Bare abcd identity and bare abcd ahoy remote list their sub-verbs and exit 0.

What ships, eleven intents, all additive:

• A role can run through a command-line harness, with a receipt for every fallback to the host (itd-2609201916056194).
• An OpenAI-compatible API adapter, allowlist-only, with no network call unless a provider is configured (itd-2609081951381895).
• One credential store for every external key, abcd ahoy credential (itd-2609221017023290).
• The status board shows Now, Next and Later (itd-2609212103568351).
• An intent can name the release it must land by (itd-2609212103572513).
• A cut release gets a retrospective, abcd reflect (itd-24).
• A coherence pre-pass before the planning interview, abcd intent prepass (itd-42).
• The brief must describe what ships: abcd docs fidelity gates the spec close and the cut (itd-60).
• A dependency bump inside a declared bound can be re-authored without a person (itd-2609221842494980).
• Session URLs and tool footers are kept out of committed text and the build loop's posts (itd-152).
• abcd names the product thinker or the technical facilitator, never an unnamed role (itd-2609212137129937).

launch ship derived v0.12.0 (impact breaking) from 281 records that reached a terminal folder since v0.11.1: the eleven intents and 270 resolved or declined issues (171 fixes, nineteen additive, three breaking, 77 internal and outside the changelog). The release guard found the five removed spellings and the records declare them; the findings guard passed with the one major carried past v0.11.1 on its recorded deferral.

The branch is eight commits on main a76d7f5:

• 4b8ff2a, the user-facing pages brought current for the docs-currency findings and the cross-check's three user-facing findings: the upgrade guide's schema version, the build and ahoy pages, drain's argument, update and version on what reaches the network, prepare-this-repo's decision ids, the README status block, and two CLI help sentences, pinned by tests.
• e8d5d00, 4d634c4 and c8ddb04, the guard brief chapter brought current after three docs-review holds; the review of c8ddb04 is PROMOTE. One brief sentence was applied from the reviewer's draft and is flagged for the product thinker's review in .abcd/work/brief-review-flags.json.
• fecdbed, the content commit. The release-changelog composer wrote the prose and the binary checked it cites exactly the cut before writing the dated CHANGELOG section and the RELEASE.md page. The marketplace entry pins the v0.12.0 plugin archive by digest.
• 828ca62, the semantic-gate receipts for fecdbed, both at tier full over the first roll b89784c4, which differs from the content commit only by the four commits above and the re-cut CHANGELOG:
  • docs-currency-reviewer (Fable 5.1) found 24. The four major ones are fixed, eleven in all; the thirteen minors and nitpicks are captured as one documentation record.
  • The brief-surface cross-check (the manifest's 45 checkers, Opus 5.5) found 129, all real on an independent classification (Fable 5.1). The three user-facing findings and every finding on the guard chapter are fixed; the rest have a disposition each.
• 175f22f, the records commit.
  • Four minor records to fix in the first lane after the tag: a capture refusal that leaves its lock file behind (iss-2609302305500526), the appendix generator calling /abcd:version host-delegated (iss-2609302306003610), the guard's trailing-dot fold that its comment promises for ../. (iss-2609302306019245), and docs fidelity record and --apply disagreeing on a verdict's chapter shape (iss-2609302306153318). The docs-currency minors are iss-2609302306281487.
  • Bare ahoy remote exiting 0 is the stated breaking change, not a defect; it and the rest of the design-record drift go to the systematic brief pass iss-2609091956001547.
  • The DECISIONS entry carries the run's agenda line, approve the publish step, under ruling A2 of the product thinker's interview and the releases ruling of 2026-09-25T08:04:52Z.
• ce32617, the guard chapter's JSON sentence reworded so its prose names no verb or flag, which the brief's shape test keeps to the generated appendix; the claims are unchanged.

Local proof: go run ./cmd/record-lint --release-gate fecdbed575f9e8e2cb0b875491d9aa48e8dfa0f9 --require-gate docs-currency-reviewer --require-gate iss35-brief-surface-crosscheck exits 0, launch receipts passes, lint docs --release-gate exits 0, and launch archive --verify --tag v0.12.0 --repository intentdriven/abcd reproduces the committed pin.

Refs: iss-2609302305500526
Refs: iss-2609302306003610
Refs: iss-2609302306019245
Refs: iss-2609302306153318
Refs: iss-2609302306281487
Refs: iss-2609091956001547
Assisted-by: Claude:claude-fable-5-1
Assisted-by: Claude:claude-opus-5-5