feat(metrics): FSM touch ledger — every transition records which item it acted on, landings first-class

.gitignore

@@ -80,6 +80,10 @@
 # Per-run pipeline metrics (accumulates across trace rotation; committed periodically):
 !/metrics/
 !/metrics/runs.jsonl
+# The FSM touch ledger: every mutating transition appends which item it acted on, whoever
+# invoked it (runs stamp FSM_TOUCH_ACTOR/FSM_TOUCH_RUN_ID; interactive sessions append bare).
+# Written in place here and committed by the refresh tick, like metrics/runs.jsonl:
+!/fsm-touches.jsonl
 # FSM-conformance snapshot (`pr-review-report human-queue --json`, overwritten each refresh);
 # the rain-org-health dashboard fetches it at runtime from the raw URL — no site redeploy:
 !/human-queue.json

README.md

@@ -2959,6 +2959,92 @@ data-only and never usage-gated — the one committer still awake during a pause
 which is exactly when skip rows are written and nothing else runs. A skip row is
 therefore visible to the dashboard within about an hour of its gated tick.
 
+### Which FSM items were touched — `fsm-touches.jsonl` and `touched`
+
+Per-item token attribution needs every actor's transitions to say which item
+they acted on, at the moment they act. That record is the **touch ledger**:
+`fsm-touches.jsonl` in the install dir, one JSON line per successful mutating
+transition, appended by the transition itself inside `pr-review-report` —
+whoever invoked it. The refresh tick commits it beside `metrics/runs.jsonl`.
+
+```json
+{"ts":"2026-08-12T15:04:05Z","actor":"vetter-run","runId":"20260812T150004Z","repo":"org/name","number":123,"kind":"pr","action":"record-verdict","verb":"needs-work"}
+```
+
+- `actor` is typed: `producer-run` / `vetter-run` (stamped by the runners via
+  `FSM_TOUCH_ACTOR` + `FSM_TOUCH_RUN_ID`) or `interactive` (nothing exported —
+  the honest default, never a guess). Cron records join to their
+  `metrics/runs.jsonl` row by `runId`; interactive records carry no `runId` and
+  their spend side is **absent**, never estimated — the touch still exists,
+  which is the half a join cannot invent after the fact.
+- `action` is the transition's own name (`record-verdict`,
+  `record-close-candidate-verdict`, `open-pr`, `push`, `flag-state`,
+  `flag-close-candidate`, `send-back`, `clear-blocked-on`, `human-rule`,
+  `human-rule-issue`, `human-close`, `repair-qa-block`, `weaken-closes`,
+  `deploy`, `design-doctor-route`, `retire-blocked-infra`); `verb` carries the
+  fan-out where one subcommand rules several ways (a verdict, a ruling, a
+  flagged label). The `-gh` suffixed actions are the LOOSE paths — mutations
+  that ran through bare gh instead of a transition — recorded by the
+  `ledger-gh` PostToolUse hook from gh's own evidence, distinguishable by
+  construction from the tool's own records: `open-pr-gh` (the create
+  `require-qa-block` gates), and the landing verbs `merge-pr-gh` /
+  `close-pr-gh` / `close-issue-gh`. A dry-run or refused transition appends
+  nothing.
+- **Landings are first-class actions.** The FSM should always move through the
+  tooling, and a landing must be sayable as a landing: `human-close` with verb
+  `close` is the tool-mediated terminal edge, and `merge-pr-gh` /
+  `close-pr-gh` / `close-issue-gh` are the bare-gh landings the hook records.
+  Landed-history derives from THESE records plus the doctor's sweep (a merged
+  or closed item still wearing FSM labels is found, cleaned, and recorded) —
+  so a landing bucketed as a generic mutation would be a landing the derived
+  history cannot see. Coverage honesty: a bare `gh pr merge` that names its
+  subject only through the cwd's repo (no `-R`, no url) records nothing —
+  absence, never a guess — and the doctor's sweep is the backstop that finds
+  what the hook could not attribute.
+- Appending is best-effort: an unwritable ledger is one stderr warning and a
+  completed transition. The metric never fails the pipeline it measures.
+
+`run-metrics` folds the ledger's records for its `runId` onto the row as
+`touched` — one entry per distinct (repo, number, kind, action, verb) with a
+`count`, `[]` for a run that touched nothing — and labels the row
+`touchedSource: "ledger"`. Rows rebuilt by `backfill-metrics` from a retained
+trace get `touchedSource: "trace"`: exact for the typed MCP transitions (call
+input / result, non-error result required), silently absent for Bash-invoked
+CLI transitions, because parsing shell strings out of traces invents work
+items (#175) — measured, not assumed. Rows with neither ledger nor trace carry
+no `touched` at all: absence, never a zero.
+
+Each `agents[]` row additionally carries its own `touched` (same shape),
+derived from the trace by `parent_tool_use_id` — the same key spend is grouped
+by, so a touch can be joined to the tokens of the actor that made it.
+`human_close` is absent from trace-derived touches (its `subject` input does
+not carry which population the ref resolved to; the ledger record does).
+
+**Rework lineage — `reworkOf`.** Delivery cost includes bugs and rework, not
+just the spend up to a first merge — so a touch record may carry an optional
+typed causal parent:
+
+```json
+"reworkOf": {"repo":"org/name","number":41,"kind":"pr"}
+```
+
+the previously LANDED item whose shipped defect the touched item reworks.
+Capture is at-source at diagnosis time: whoever files the fix knows the causal
+item then, and passes it typed (`open_pr`'s `rework_of` + `rework_of_kind`
+arguments — the fix-PR filing path, the one place the tool surface currently
+takes it). Absent means the actor named no causal item — it is **never**
+inferred post-hoc by blame or bisect heuristics. Coverage honesty: today only
+`open_pr` can populate it; every other action (`record-verdict`, `flag-*`,
+`human-*`, `push`, `open-pr-gh`, …) records without lineage, and issues filed
+outside the tool surface (audit outputs via `gh issue create`) carry none
+until filing moves behind a subcommand.
+
+What the field makes computable (the schema's contract, not something this
+binary computes): **delivered cost of item X = X's own lifetime touches + the
+touches of every item in rework chains rooted at X, transitively** — follow
+`reworkOf` edges backwards from each fix to the landed item that shipped the
+defect, and charge the fix's spend to that root.
+
 ### Live token spend — and the one number that is not knowable
 
 `run-metrics` reads tokens from the terminal `result` event, so a killed run

TRANSITIONS.md

@@ -43,6 +43,7 @@ transition functions:
 | `open_pr` (MCP)                                                                 | the PRODUCER'S OUTPUT EDGE: open the PR for a pushed branch, assigned, with a typed `closes` linkage and a body `carries_qa_block` has already accepted — and a RESULT carrying the PR number, so the trace holds `{agent, repo, issue, PR}` as typed data                                                                                                                                                                                                                                                                                                                                                                                                |
 | `push` (MCP)                                                                    | the PRODUCER'S REWORK EDGE: fast-forward a work clone's branch onto origin — no force spelling is expressible — and RECORD the PR whose head it moved, named only when an open PR on that branch is at exactly the commit just pushed                                                                                                                                                                                                                                                                                                                                                                                                                     |
 | `work-tokens <metrics/runs.jsonl> [--json]`                                     | TOKENS TO LAND WORK: per-actor spend joined to the work items `open_pr` and `push` recorded, bucketed landed / delivered-awaiting-human / churn. Only churn is waste; an actor with no typed item is churn and nothing is inferred from a label or a branch name. The main loop carries items but no per-item cost                                                                                                                                                                                                                                                                                                                                        |
+| `ledger-gh`                                                                     | the touch-ledger RECORDER for the loose gh paths: a PostToolUse `Bash` hook that reads gh's own evidence and appends the touch the bypassed tool would have written — the `open-pr-gh` create `require-qa-block` gates but cannot record, and the LANDING verbs the interactive population still performs bare (`merge-pr-gh`, `close-pr-gh`, `close-issue-gh`), typed as landings because landed-history derives from these records. Always exit 0 — a recorder never wedges the session it observes. Wiring: the user `settings.json`, beside `require-qa-block`                                                                                              |
 | `repair-qa-block <owner/repo> <n> --block-file <path>`                          | the RETROFIT of the same rule on an ALREADY-open PR: appends the §8 block to the body, every other byte identical, validated with `require-qa-block`'s predicate                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
 | `weaken-closes <owner/repo> <n> <issue>`                                        | the LINKAGE repair a linkage `needs-work` names: `Closes #issue` → `Refs #issue`, every other byte identical, `## QA` untouched, DIRECTION-LOCKED so it can only ever remove a closing reference                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
 | `mcp [--profile vetter\|producer\|human]`                                       | serve a role's transitions over MCP (stdio) — the FSM as a tool surface, not as prose                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |