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session-history/dev-claude-plugin/0038/SESSION-0038.0-TRANSCRIPT-2026-06-09T23-46--2026-06-10T00-03.md
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# Session 0038.0 — Transcript
> App: dev-claude-plugin
> Start: 2026-06-09T23-46 (PST)
> End: 2026-06-10T00-03 (PST)
> Type: planning-and-executing
> Status: **FINALIZED**
## Launch prompt
```
/goal Address gitea issue #39 - fix it in this session and close it once the fix is verified
```
Issue #39 (plugin tracker, `type/feature` `priority/P1`): *"Stamp Claude
session_id into --INPROGRESS placeholders; match it in SessionEnd/Stop hooks"* —
concurrency-safe session bookkeeping so each hook only acts on the placeholder
its own session owns.
## Pre-state
- Branch at open: `fix/capture-finalize-skip-memory` (the canonical checkout was
owned by a concurrent session); `origin/main` at `4f57d2a` (v0.28.0).
- Three sessions in flight against `dev-claude-plugin` this evening, one
remediation wave from **capture session 0035**'s plugin source review:
0035 (capture — filed #38/#39), 0037 (fixed #38 → 0.28.1), this session
0038 (fixed #39).
## Arc
1. **Gate + claim.** Classified the prompt as planning-and-executing; invoked
`wgl-planning-and-executing`. Peeked (dry-run) — session 0035 in flight; a
concurrent claim grabbed 0037 mid-flight so I converged to **0038**.
2. **Scoped the issue.** Fetched #39 from the tracker — a real concurrency bug:
both placeholder-consuming hooks (`session-end-finalize-guard`,
`finalize-on-goal`) select the placeholder by recency (`find … | sort |
tail -1`) instead of identity, so concurrent sessions cross-contaminate.
3. **Isolation decision.** 0035 (capture) was writing the shared checkout's
working tree (untracked `issues/*.md` drafts), so per §5.4 + feedback #30 I
worked in an isolated worktree `.worktrees/issue-39` off `origin/main` and
never touched 0035's drafts.
4. **Linchpin verification.** Confirmed `CLAUDE_CODE_SESSION_ID` is exposed to
Bash AND equals both the hook input `.session_id` and the transcript filename
(`<id>.jsonl`). So a claim-time env stamp matches what the hooks see — no
init-skill plumbing needed (resolved the issue's open design question the
simplest way).
5. **TDD.** Wrote `test-session-id-ownership.sh` first (RED, 7 fail) covering:
the selection helper's rule, the claim stamp end-to-end against a throwaway
`file://` bare remote, and both hooks' ownership behavior against a stubbed
`CLAUDE_PLUGIN_ROOT` (fake resolver + fake publish that records calls — no
network). Implemented to GREEN (12/12).
6. **Implementation.**
- `claim-session-id.sh``--session-id` flag defaulting to
`$CLAUDE_CODE_SESSION_ID`; writes `> Claude-Session: <id>` header; stampless
when absent (legacy-compatible).
- NEW `select-owned-placeholder.sh` — rule: identity match → else newest
**stampless** (legacy fallback) → else nothing (owns none).
- Both hooks read `.session_id` and select via the helper;
`finalize-on-goal` also recovers the id from the transcript basename.
- Docs led the automation (§4.1): SESSION-PROTOCOL.md "Session ownership by
stamp", finalize-core.md, CLAUDE.md hook bullets. Bumped 0.28.0 → 0.29.0.
7. **Ship — with a rebase detour.** PR #53 came back `mergeable:false`: PR #52
(0.28.1, the 0037/#38 fix) had landed on main, touching the same
`hooks/finalize-on-goal` + `plugin.json`. Rebased onto `origin/main` — the
hook auto-merged cleanly (both #52's `stop_hook_active`/fail-open guards and
my session_id changes coexist), only `plugin.json`'s version needed manual
resolution (→ 0.29.0). Re-ran tests green.
8. **Force-push denied** by the environment → pushed the rebased commit to a
fresh branch `fix/issue-39-session-id-stamp-rebased`, opened **PR #54**
(`mergeable:true`), closed stale **#53**. Merged #54 via the Gitea API
(merge-commit, delete-branch). **Issue #39 auto-closed via `Closes #39`**;
merge `e4441f6` on main. Cleaned up the worktree + local branches.
## Cut state
- **Shipped:** plugin **v0.29.0** on `origin/main` (`e4441f6`). Issue **#39
CLOSED**. PR **#54** merged; stale **#53** closed; both branches deleted.
- **Tests:** `skills/wgl-session-common/scripts/test-session-id-ownership.sh`
12/12 green; no network touched.
- **No plan artifact** to archive (focused bugfix executed via TDD without a
separate written plan) → `submit-plan.sh` skipped, per the addendum.
- **No §9 pipeline stage** — plugin/meta change, no deployable UI app; ships via
operator re-install.
## Operator plate
- **Re-install needed to make 0.29.0 + the stamp/matching live.** Until then,
in-flight placeholders (0035/0037/0038) are stampless, so the hooks use the
legacy newest-wins fallback (by design, during the transition).
- The other concurrent sessions (0035 capture, possibly others) still own the
canonical checkout and their untracked `issues/*.md` drafts — left untouched.
## Deferred decisions
_None — the design question (where the session id comes from) was resolved
deterministically by verifying `CLAUDE_CODE_SESSION_ID` equals the hook
`.session_id`, and the stampless-fallback choice is documented in
SESSION-PROTOCOL.md. No low-confidence calls needed operator input._
## Next-session prompt
```
/goal Patchwatch rfc-app remediation — long-parked at a depth decision
(deployment pin 0.46.1 lags main ~5 versions; vitest dev-only; tqdm/idna
transitive floor-pins). See flotilla-core/0003 + project memory.
```
This session was an explicit `/goal #39` interrupt and did **not** consume the
parked Patchwatch goal.