rt repos reidentify and the shared-checkout folder paths

[m4ttheweric]

Problem

Renaming m4ttstack/rt to m4ttstack/mattstack changes the identity rt derives from the remote, and every per-repo store keys on that identity: the repo index, the worktree registry and data dir, rt.repoTracking, repos.<id> settings sections, the events cursor, eight state.db tables and herds.db. After a set-url all of it reads as empty. No tool moved state between two identities, and the shared checkout path ~/Documents/GitHub/repo-tools was hard-coded in the release and settings code.

This is Stage 2a of docs/superpowers/plans/2026-09-27-mattstack-rename-and-plugin-foldins.md. It names nothing new: the repo keeps its name until Stage 2b, and this PR ships in a release before then.

Fix

rt repos reidentify <old> <new> [--dry-run] [--json] (lib/repo-reidentify.ts)

• Moves every identity-keyed store, one report line each: kv:repo-index, data-dir, rt.repoTracking, kv:events-cursor, the eight state.db tables, herds.repo, settings:workspacePrefs.editors, and the user, machine and team repos.<id> sections. branch_cache and git_badges are dropped as regenerable caches.
• Every move re-reads after writing. A store holding rows under both identities refuses and names itself, unless both sides are equal (a crashed or re-registered move), which finishes. A throw or an unreadable store is that store's refused line; the other stores still move.
• Idempotent: a second run is already or none everywhere. Raw args go through normalizeRemote, so GitHub.com/…, .git and URL forms match.
• Runs through the daemon when one is present (inside the reconciler hold, then memo clear, watcher refresh, repo:reidentified), locally when none is; a present but silent daemon is a hard stop. A refusal exits 2 with one JSON document under --json.
• The worktree pool directory never moves; registry rows hold absolute paths.

Rename detector (lib/daemon/rename-detect.ts): after the boot identity migration settles and every 6 hours, reads each indexed repo's remote fresh from git config. When it derives a new GitHub identity, and GitHub's 301 for the old name leads to a repo whose full_name is that identity, the detector applies through the same repos:reidentify handler. Fetches time out at 10s, passes never overlap, and nothing applies after stop.

Shared checkout (lib/release/shared-checkout.ts): ~/Documents/GitHub/mattstack first, repo-tools as the fallback, in rt release, update-machine and rt settings source detection. Docs and skills name the new folder and the fallback. AGENTS.md and the rt-release skill state that the old repo name is never recreated.

Stage 1: rename redirect proof (2026-09-27)

A throwaway repo m4ttstack/rename-probe, with a release carrying appcast.xml, was renamed and then deleted.

• The asset through the old name answered 200.
• An API read through the old name answered 301 to /repositories/<id> (the numeric id, not the new name), and gh api followed it.
• A ref PATCH through the old name succeeded, so writes follow the redirect too.

Tests

• New suites: store primitives, section rename, tracking move, the orchestrator (every store, idempotence, per-store refusal, dry run, identity forms, failing and unreadable data dirs, unlistable teams), locate after reidentify, handler (memo clear, refresh on partial refusal), dispatch, command (JSON shape, refusal table, headers), detector (every no-fire case, two-hop fetch, overlap guard, stop mid-pass), shared checkout.
• bun run test: 11537 pass, 6 fail. The 6 are in commands/__tests__/flavor-takeover.test.ts and daemon-logdy-config.test.ts; this diff touches neither, and both files pass 19/0 on their own.
• bun run check, picker:check, docs:check, test:pty and scripts/repo-purity.sh are green. test:e2e: 150 pass, 1 fail (the plugin-scaffold typecheck that fails under a temp HOME on this machine's mise shim, unrelated).
• Every task had an Opus spec and quality review, and the branch had an Opus whole-branch review (ready to merge).

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📥 Commits

Reviewing files that changed from the base of the PR and between 74fdb71 and 55adfb3.

📒 Files selected for processing (38)

• AGENTS.md
• apps/chat/AGENTS.md
• apps/chat/ARCHITECTURE.md
• commands/__tests__/repos-reidentify.test.ts
• commands/release.ts
• commands/repos-reidentify.ts
• commands/settings.ts
• docs/superpowers/plans/2026-09-27-mattstack-rename-and-plugin-foldins.md
• docs/superpowers/specs/2026-09-27-mattstack-rename-and-plugin-foldins-design.md
• lib/__tests__/repo-reidentify-dispatch.test.ts
• lib/__tests__/repo-reidentify-locate.test.ts
• lib/__tests__/repo-reidentify.test.ts
• lib/__tests__/repo-tracking-move.test.ts
• lib/command-tree-def.ts
• lib/daemon.ts
• lib/daemon/__tests__/rename-detect.test.ts
• lib/daemon/__tests__/repos-reidentify-handler.test.ts
• lib/daemon/handlers/repos.ts
• lib/daemon/rename-detect.ts
• lib/module-registry.ts
• lib/release/__tests__/shared-checkout.test.ts
• lib/release/shared-checkout.ts
• lib/release/update-machine.ts
• lib/repo-reidentify-dispatch.ts
• lib/repo-reidentify.ts
• lib/repo-tracking.ts
• lib/state/__tests__/reidentify-primitives.test.ts
• lib/state/cursors-store.ts
• lib/state/reidentify.ts
• packages/rt-client/src/settings/__tests__/rename-repo-section.test.ts
• packages/rt-client/src/settings/identity.ts
• packages/rt-client/src/settings/write.ts
• skills/rt-build-dev-app/SKILL.md
• skills/rt-release/SKILL.md
• skills/rt-repo-identity/SKILL.md
• skills/rt-settings/SKILL.md
• website/docs/reference/repos/index.mdx
• website/docs/reference/repos/reidentify.mdx

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