# Session 0016.0 — Transcript

> App: dev-claude-plugin
> Start: 2026-06-05T12-45 (PST) · End: 2026-06-05T17-45 (PST)
> Type: coding
> Goal: Auto-trigger (or offer) `wgl-session-finalize` when a `/goal` is achieved; persist a next-`/goal` to memory; explicit resume.
> Outcome: Shipped plugin **0.15.0** — new `finalize-on-goal` Stop hook + the `/goal next` resume. Merged via PR #9 (`f406d8a`).

## Plan

1. Classify + open the session (coding) and claim the transcript ID.
2. Brainstorm the design (it has a real feasibility unknown).
3. Decide: trigger behavior (mode-governed), mechanism (one Stop hook), resume (explicit).
4. De-risk the load-bearing unknown — how a `/goal` achievement is detectable.
5. Implement: Stop hook + finalize-core policy + memory field + gate/init resume + version/docs.
6. Verify, branch→PR→merge (autonomous), finalize.

## Pre-session state

Clean `main` at `70bf3e9`, source 0.14.0 (installed cache also 0.14.0 — operator had
re-installed since the 0.13.0 era recorded in memory). No in-flight sessions. The
plugin already had exactly one hook (the SessionStart session gate); `/goal` appeared
in the skills only as a *string* the init/finalize skills emit for the operator to
paste — the actual `/goal` command and its "Goal achieved" signal are harness-level.

## Turn-by-turn arc

- **Gate + claim.** Classified the request as a coding session on the plugin itself,
  invoked `wgl-session-coding-init`, peeked (dry-run: nothing in flight) and claimed
  **0016**. Confirmed clean pushed `main`; noted source = cache = 0.14.0.
- **Brainstorming.** Established the feasibility picture via the claude-code-guide
  agent: `/goal` is a real built-in that loops across turns and records an "achieved"
  entry on completion; there is **no GoalAchieved hook**; the `Stop` hook (every
  turn-end) and `UserPromptSubmit` (can block) are the levers; **hooks can't invoke a
  skill** — they inject context / block; **mode is not persisted** so a hook can't
  read yolo/careful.
- **Decision 1 — trigger:** operator chose **mode-governed** (yolo → auto-finalize;
  careful → offer on next prompt). Since mode isn't readable by a hook, the hook is
  mode-blind and the *agent* branches.
- **Decision 2 — mechanism:** operator chose **one Stop hook** (deterministic detect +
  sentinel + neutral nudge; agent branches; careful offer surfaces at goal-time then
  waits).
- **Operator refinement on resume (#4):** resume-from-memory must be **explicit** —
  `/goal next` (gate) and `/wgl-session-coding-init next goal` (bookend) read a stored
  field; a normal init starts some other session; anything else → normal auto-detect.
  Honesty caveat recorded: bare `/goal` is the built-in's status command and may not be
  interceptable; `/goal next` is the dependable trigger.
- **De-risking detection (the crux).** The goal-achieved format is undocumented and the
  Stop input carries no goal field; no `/goal` had ever been used locally to sample, and
  a loose regex would false-positive on prose (this very session discusses "goal_status").
  Recovered the authoritative shape from the CLI **binary**
  (`~/.local/share/claude/versions/2.1.165`, Mach-O): goal events are `goal_status`
  **attachments**, **achieved = `met:true && !sentinel`** (the predicate the binary's own
  reverse-scan uses). Detection keys on the JSON *object structure* → prose-proof.
- **Implementation.** Wrote `hooks/finalize-on-goal` (fail-open throughout; `grep`
  pre-gate; `resolve-app.py`; `--INPROGRESS` placeholder gate; sentinel count;
  block-reason nudge), registered it as a second `Stop` entry in `hooks.json`. Added the
  finalize-core "Entering finalize when a `/goal` completes" policy + Step 6
  `**Next /goal:**` persistence; `publish-transcript.sh` sentinel cleanup; the gate's
  `/goal next` branch; coding-init Step 7a; version 0.15.0; CLAUDE.md/README.
- **Verification.** Ephemeral harness (`/tmp/wgl-fog-test.sh`): genuine achievement among
  `met:false`/`sentinel`/prose decoys → count **1**; prose-only → **0**; full hook emits
  the block once, sentinel suppresses re-fire, prose-only and no-placeholder stay silent.
  `jq empty` (both JSON), `bash -n` (both scripts), no trailing inline CLI comments.
- **Land.** Spec committed (`fc969a7`), implementation committed (`566c586`) on
  `feat/finalize-on-goal`; pushed; PR **#9** opened and **merged** (`f406d8a`) via the
  Gitea API (no gh/tea); branch deleted; local `main` fast-forwarded.

## Cut state (end of session)

| Repo | Branch→main | Commits / PR | State |
| --- | --- | --- | --- |
| wiggleverse-dev-claude-plugin | `feat/finalize-on-goal` → `main` | design `fc969a7`, impl `566c586`, merge `f406d8a` (PR #9) | Merged, branch deleted, `main` clean & pushed |

Source now **0.15.0**; installed cache still **0.14.0** (lags until re-install). No open
PRs, no dirty tree, no unpushed commits. Deferred decisions: none (every call decided
jointly via `AskUserQuestion`).

## What lands on the operator's plate

- **Re-install** to make 0.15.0 live: `/plugin marketplace update` + `/plugin install`.
  The new Stop hook activates only on the **next new session**.
- **Detection is best-effort / fail-open.** If a Claude Code upgrade changes the
  `goal_status` shape the hook silently stops nudging (degrades to manual finalize);
  re-confirm against a real `/goal` run or the CLI binary and update the `jq`.
- Bare `/goal` resume is best-effort; `/goal next` is dependable.

## Prompt the operator can paste into the next session

```
/goal Re-install plugin 0.15.0, then verify finalize-on-goal end-to-end live: in a tracked session run a throwaway /goal that completes, confirm the Stop hook nudges wgl-session-finalize (yolo auto / careful offer), and confirm `/goal next` resumes the stored Next /goal from this repo's memory.
```