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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.
diff --git a/dev-claude-plugin/0038/SESSION-0038.0-TRANSCRIPT-2026-06-09T23-46--INPROGRESS.md b/dev-claude-plugin/0038/SESSION-0038.0-TRANSCRIPT-2026-06-09T23-46--INPROGRESS.md
deleted file mode 100644
index 9485bcd..0000000
--- a/dev-claude-plugin/0038/SESSION-0038.0-TRANSCRIPT-2026-06-09T23-46--INPROGRESS.md
+++ /dev/null
@@ -1,27 +0,0 @@
-# Session 0038.0 — Transcript
-
-> App: dev-claude-plugin
-> Start: 2026-06-09T23-46 (PST)
-> Type: planning-and-executing
-> Status: **PLACEHOLDER — claimed at session start; finalized at session end.**
->
-> This file reserves session ID 0038 for dev-claude-plugin. The driver replaces this
-> body with the full transcript and renames the file to its final
-> SESSION-0038.0-TRANSCRIPT-2026-06-09T23-46--<end>.md form at session end.
-
-## 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 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.
-
-```
-
-## Deferred decisions
-
-_Autonomous-mode low-confidence calls the driver made and would have
-liked operator input on. Appended as the session runs; surfaced at
-finalize. Empty if none._