Merge remote-tracking branch 'origin/main' into gsta-155-autoplan-carry

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

# Conflicts:
#	CHANGELOG.md

docs/PROJECT_STRUCTURE.md

@@ -92,6 +92,7 @@ gstack/
 │   ├── test/        # Integration tests
 │   └── dist/        # Compiled binary
 ├── agents-digest/   # Committed 2KB instruction-tier rules digest (gstack-AGENTS.md) for rules-reading hosts
+├── modules/         # loadouts.json (+ loadouts.schema.json): model rungs, pinned modules and named loadouts; read by scripts/modules.ts, rendered by bin/gstack-modules (docs/loadouts.md)
 ├── extension/       # Chrome extension (side panel + activity feed + CSS inspector)
 ├── lib/             # Shared libraries (aside-render.ts = local-HTML rendering, Aside first, engine fallback; design-catalog.ts = the typed design anti-pattern catalog every design skill renders from; design-lint/ = the static and render tiers behind bin/gstack-design-lint, ported from hallmark's sloplint; design-detect-contract.ts = detector sentinel vocabulary; design-md.ts = open DESIGN.md reader/writer; dom-dump-script.ts + generated dom-dump.js = rendered-DOM dump for the detector; review-evidence.ts = review-start receipt binding, computed freshness and shared-code snapshot eligibility; frontend-scope.ts; claude-bin.ts, error-handling.ts, worktree.ts, egress-receipt.ts, context-bill.ts, redact-engine.ts, tracker-guard.ts, version-source.ts, code-intelligence/)
 │   └── diagram-render/  # Vendored mermaid + excalidraw runtimes, built into one offline bundle the renderer loads

docs/TESTING_INTERNALS.md

@@ -783,6 +783,14 @@ once, plus cleanup. Each still has 120 seconds of model work. Its 17 workflow
 judges own their deadline and abort signal, with five seconds for terminal
 recording inside a ten-second Bun grace; the other 11 retain their existing
 120-second Bun timeout. Late responses cannot create records or cache passes.
+When a judge's abort signal cancels its request, `callJudge`
+(`test/helpers/llm-judge.ts`) prints one `llm-judge-aborted` JSON line to
+stderr: elapsed time, wrapper `attempts` and `retryWaitsMs` (429 waits),
+`httpRequests` and `httpStatuses` (so SDK retries show), `connectedMs`,
+`firstEventMs` and `lastEventMs`, the open `block` type, `thinkingChars` and
+`textChars`, `messageId`, `requestId` and the `reason` (at most 200
+characters). It holds counts and ids only, never content, and changes no
+request, score or verdict.
 
 The ship documentation file reserves 4,920 seconds for four 600-second cases and
 eight 300-second fault cases, run once, plus cleanup; in CI each case runs as its

docs/captain.md

@@ -234,6 +234,14 @@ a push included. The sequence that works unattended on Capy:
 10. After the slot call, the stamp commit keeps the pin's receipt; re-READY with the same
     receipt, no second /ship.
 
+When the base moves under a reviewed branch, merge it in; never rebase. A merge that
+leaves the product diff unchanged carries the receipt with `gstack-ship-receipt carry`
+(pregate at HEAD, no review rerun), and a merge whose resolution changed product code
+needs a fresh /ship. A rebase carries only onto a tree the receipt already covers with
+the same product diff; any other rebase is a full /ship
+([ship-policy.md](ship-policy.md#receipt-carry)). A controller never asks a lane to
+rebase a reviewed branch.
+
 ## Merge trains
 
 gstack's queue tool drives trains when the repository's `.gstack/ship-policy.json` carries

docs/capy-install.md

@@ -155,7 +155,16 @@ and `/proc` start time; elsewhere `ps -o lstart`), because a pid is reused after
 a reboot or a machine wake. `bin/gstack-upgrade`, and so the session-start
 self-upgrade, refuses with [UPGRADE_BUSY](troubleshooting.md#upgrade-busy)
 while a lease held by a live process outside its own chain exists, naming each
-holder as `pid <p> (<age>m <command>)`. The team-mode SessionStart hook
+holder as `pid <p> (<age>m <command>)`. The install-mode self-upgrade also
+defers while its own chain holds a live lease under 120 minutes old. An install
+run from inside a workflow (/ship's docs step running `install.sh --for
+document-release`, #3571) prints `SELF_UPGRADE: skipped (a gstack run in this
+session holds a workflow lease on this installation: ... (UPGRADE_BUSY))`,
+leaves the checkout where the run started and stays ok with `behind=`. Each
+`gstack-skill-start` renews the lease. On Capy the leased pid is the machine's
+long-lived `capy-server`, so the deferral ends when the lease turns 120
+minutes old, not when the process exits; `bin/gstack-upgrade` run by hand
+moves the checkout sooner. The team-mode SessionStart hook
 (`bin/gstack-session-update`) honors the same leases: it logs
 `SKIP leased pid=<p>/<age>m` to `analytics/session-update.log` and tries again at
 the next session start, without writing its hourly throttle stamp. A lease whose

docs/loadouts.md

@@ -0,0 +1,40 @@
+# Module loadouts
+
+gstack can render a smaller or larger set of its instructions for a given model. Each toggleable piece is a **module** with an id. A **loadout** is a named set of modules, and `modules/loadouts.json` maps each model **rung** to a loadout. Today every rung loads `full`, which is the same render gstack has always shipped. A loadout changes only when the shared skill eval (GSTA-2) measures a smaller one that matches `full` within its preregistered margin.
+
+Install-time model detection, which picks a loadout for the model you run, ships with the first loadout that is not `full`. Until then, loadouts are an eval tool: `bin/gstack-modules render` produces any loadout as a byte-exact tree with a lock file.
+
+## Terms
+
+| Term | Meaning |
+|---|---|
+| Module | One of four kinds. `skill:<dir>` is a whole skill. `section:<skill>/<id>` is one entry of `<skill>/sections/manifest.json`. `overlay:<name>` is one `model-overlays/<name>.md`; excluding a base overlay also removes the base's text from every overlay that inherits it; the inheriting overlay's own text stays. `preamble:<id>` is one piece of the shared preamble (`PREAMBLE_PIECES` in `scripts/resolvers/preamble.ts`). |
+| Pinned | A module no loadout can remove where `full` renders it: the start command, plan-mode rules, the question format, completion status, the unattended profile, /ship's review army and adversarial pass, the router and `/gstack-upgrade`. A skill's `preamble-tier` still applies, so a tier-1 skill has no question-format section in any loadout. |
+| Rung | How much scaffolding a model gets: `frontier`, `strong`, `mid`, `light`, or `unknown`. Model ids are matched after lowercasing and stripping a `provider/` prefix (`anthropic/claude-haiku-5-5` is `mid`). Rungs are separate from the frontier/smart tiers in `lib/model-catalog.ts`, which choose which model runs a role. |
+| Loadout | `{ base, exclude, include, preamble_tier_max, note }`. `full` (include `*`) is always present. An unknown model gets `default.unknown`, which is `full`. |
+
+## Commands
+
+```bash
+bin/gstack-modules list [--json] [--pinned]   # every module id, kind, source, pin, source bytes and sha256
+bin/gstack-modules validate                   # check modules/loadouts.json against the catalog
+bin/gstack-modules render --host claude --loadout full --out-dir ~/arms/control
+bin/gstack-modules render --host claude \
+  --modules 'full,-section:office-hours/second-opinion,-section:office-hours/visual-design' \
+  --out-dir ~/arms/oh-lean
+```
+
+`render` writes the whole host tree into a staging directory beside `--out-dir`. It checks that no rendered file still points at an excluded module, writes `loadout.lock.json` last (loadout name or `adhoc`, the normalized spec and its sha256, host, model, every excluded id, and the sha256 and byte count of every file), then swaps the result into place. A failure leaves an earlier render at `--out-dir` untouched. Claude section links name `--out-dir`, so point the eval harness at that directory. Pass the same `--model`, `--install-root` and `--plan-mode` the install under test uses, so the arms differ only by the modules. Codex renders default to the host's generic `gpt` overlay, while `./setup` uses `gpt-6-astra`.
+
+`bun run gen:skill-docs --loadout <name> --out-dir <dir>` and `--modules <spec> --out-dir <dir>` apply the same filter to a generation run without the staging, dangling-reference check or lock file; a selection with exclusions and no `--out-dir` is refused with `MODULE_SPEC_INVALID`, because the committed tree is always the `full` render. A non-`full` render adds `<!-- loadout: <name> -->` to each SKILL.md header.
+
+## Building an eval arm
+
+1. Render the control with `--loadout full` and each arm with `--modules full,-<id>,…`. Every refusal names its code and fix ([troubleshooting](troubleshooting.md#module-loadouts-gstack-modules)).
+2. Preregister the lock files' `spec_sha256` and per-file sha256 values with the eval.
+3. Excluding a section removes its STOP pointer, its Section-index row and its file. The step becomes `> Not loaded in the <loadout> loadout: skip <trigger>. Do not offer it, and treat it as not run.` Skeleton text that belongs to the section, such as office-hours' Phase 3.5 offer, sits inside `{{IF_SECTION:<id>}}…{{/IF_SECTION}}` in the template and goes with it.
+4. The autoplan runner (`gstack-autoplan`) reads review methodology from the source tree, not from a rendered loadout, so autoplan-runner arms always measure `full` methodology.
+
+## Changing a loadout
+
+Add or edit an entry under `loadouts` and cite the GSTA-2 run (preregistration, margin, per-rung result) in its `note` and in the PR body. A model-specific loadout that wins a preregistered comparison is allowed even if it breaks the expected nesting (light ⊇ mid ⊇ strong). Committed SKILL.md files are always the `full` render, so the parity suite, the SKILL.md size guard, the size ledger and the catalog and context budgets keep measuring `full`.

docs/pregate.md

@@ -146,7 +146,12 @@ Two stages with separate clocks, both printed:
 ~2.5 s for `regen` and under 200 ms for each of the others):
 
 - `regen`: every registry entry whose inputs or outputs are touched is fresh
-  (`gstack-regen check` in a scratch worktree).
+  (`gstack-regen check` in a scratch worktree). A fresh entry with touched
+  outputs then runs once more with those outputs deleted; the ones the command
+  recreates byte-identically are the check's `proven` paths, which
+  `gstack-ship-receipt carry` reads. The verdict comes from the first run: an
+  output the second run does not recreate, or a second run that fails, is
+  simply not proven.
 - `secrets`: `gstack-redact` over the branch's added lines (merge-base to the
   working tree, untracked files included). HIGH, or MEDIUM in the `secret`
   category, fails; other MEDIUM findings warn. Cannot be downgraded.
@@ -763,11 +768,13 @@ with a timing flake: never raise the bound.
 
 ```json
 { "sealed": {
-    "paths": ["heldout/**"],
+    "paths": ["heldout/**", "**/sealed/**"],
     "transcripts": ["runs/**/transcript*.jsonl"],
+    "allow_paths": ["**/sealed/*/MANIFEST.json", "**/protected/MANIFEST.json"],
     "answer_markers": ["SEALED ANSWER:"],
     "seed_patterns": ["shuffle_seed=\\d+"],
-    "local_paths": true } }
+    "local_paths": true,
+    "case_insensitive": true } }
 ```
 
 A repo with a `sealed` key gets a configured local check against accidental
@@ -787,8 +794,38 @@ gstack-pregate sealed [--range <a..b>] [--remote origin] [--base <branch>] [--js
   in a later commit); `sealed.answer`, `sealed.seed` and `sealed.local_path`
   (`/home/<user>/`, `/Users/<user>/`, `C:\Users\<user>\`) check each commit's added
   lines. Findings print rule, `file[:line]` and commit, never the text.
+- **Globs.** `paths`, `transcripts` and `allow_paths` match the whole
+  repo-relative path from the repository root. `*` and `?` stay inside one
+  path segment; `**/` spans zero or more directories; a `**` not followed by
+  `/` matches across directories (`heldout/**` covers every depth under
+  `heldout/`); `[` and `{` are literal. So `sealed/**` misses `tasks/x/sealed/a.json`:
+  to guard a `sealed/` directory wherever it sits, write `**/sealed/**`.
+- **Case.** Matching is case-sensitive. `case_insensitive: true` folds case
+  for `paths` and `transcripts` only, so `**/heldout/**` also catches
+  `HELDOUT/` and `HeldOut/`. Separator and spelling variants (`hold-out/`,
+  `held_out/`, `heldout-v2/`) are not folded: list each as its own glob.
+  The effective value is the base branch's OR the pushed one (it only tightens).
+- **Exceptions.** `allow_paths` exempts publishable files that sit next to
+  sealed data (a `MANIFEST.json` of hashes and counts) from `sealed.path` and
+  `sealed.transcript`, applied after the deny globs and before waivers. They
+  are read from the destination base branch only: an exception a push adds
+  takes effect once it lands on the base branch, so a branch can never widen
+  its own. They never fold case. An entry whose file name contains `**`, or
+  is only wildcards before its extension (`**`, `sealed/*`, `**/*.json`,
+  `sealed/**.json`), is refused; a partial wildcard such as `MANIFEST*.json`
+  is accepted and matches every file it spells, so name the file. An exempt file is checked by the
+  text rules only, so configure `answer_markers` when you exempt files next to
+  sealed data. Each exempt path is listed on every push (`exempt <rule>
+  <file> commit <sha> (sealed.allow_paths <glob>)`) and counted as
+  `exempt=<n>` on the `SEALED:` line.
+- **Version skew.** A gstack older than the release whose CHANGELOG adds
+  `sealed.allow_paths` refuses `allow_paths` and `case_insensitive` as
+  unknown keys, so every push and `gstack-pregate run` in the repository
+  fail on that machine. Raise `min_gstack_version` in
+  `.gstack/ship-policy.json` to that release before landing either key.
 - **Policy.** The union of the destination base branch's `sealed` and the
-  pushed commit's: a push can tighten it, never relax it. A malformed or
+  pushed commit's: a push can tighten it, never relax it (`allow_paths` come
+  from the base branch alone, and a pushed deny glob cannot override one). A malformed or
   unreadable policy refuses. Waivers come only from the base branch's
   `.gstack/sealed-allow.tsv` (`rule<TAB>path<TAB>sha<TAB>reason`) and are
   listed on every push.

docs/review-policy.md

@@ -128,26 +128,75 @@ applies no edits is its exit too.
 <a id="review-depth"></a>
 ## Review depth by diff class
 
-`gstack-review-plan --base <base>` classifies the diff and prints the reviewers
-the next step dispatches (`REVIEW_CLASS:`, `REVIEW_PLAN:`, one `DISPATCH:` per
-reviewer with its effort, one `SKIP:` per reviewer left out, `--json`). A mixed
-diff takes its most restrictive class; a `gstack-diff-scope` error fails closed
-to code, and code with the gate scan unavailable fails closed to gate.
+`gstack-review-plan --base <base>` classifies the diff, picks a **depth** and prints
+the reviewers the next step dispatches: `REVIEW_CLASS:`, `REVIEW_DEPTH: <d>
+runtime_lines=<n> rules=<hash> reasons=<…> codes=<…>`, `GATE_SCAN: tagged=<n>|unavailable
+head=<sha>`, one `DEPTH_ERROR:` per input that failed closed, one `DISPATCH:` per reviewer
+with its effort and a shell-quoted `DIFF_CMD:` (plus `DIFF_EXCLUDE: <name> none` when it
+reads everything), one `SKIP:` per reviewer left out, and `--json` with the same fields.
+A plan that fails closed to full exits 0; a diff git cannot list exits 1.
 
-| Class | What it is | Pass 1 dispatches |
+**Classes** are unchanged. A mixed diff takes its most restrictive class: **docs**
+(markdown no agent or gate reads), **tests** (test files and fixtures), **code**
+(everything else, including every `SKILL.md` and template, markdown in a skill
+directory, `*/sections/**`, `scripts/resolvers/**`, rule docs, checklists and bins) and
+**gate** (code plus auth or migration scope, a hunk the gate scan tags, a deleted code
+or test path, CI workflows, credential, state-root and the paths below).
+
+**Runtime lines** are the changed lines of code-class paths, minus outputs the base
+commit's `.gstack/generated.json` registers. Docs, tests and release metadata are never
+runtime; a `.tmpl` edit plus its regenerated `SKILL.md` counts the template once.
+
+| Depth | When | Pass 1 dispatches |
 |---|---|---|
-| **docs** | markdown no agent or gate reads: README, CHANGELOG, TODOS, how-to and explanation docs | the parent's core checklist only |
-| **tests** | test files and fixtures only | core plus the testing specialist |
-| **code** | everything else, including every `SKILL.md` and template, any markdown in a skill directory, `*/sections/**`, `scripts/resolvers/**`, `docs/*-policy.md`, `docs/captain.md`, `docs/unattended.md`, `docs/pregate.md`, checklists, specialists and bins | specialists by scope (as before), the native adversarial pass, the outside voice; the Red Team past 200 lines or after a CRITICAL |
-| **gate** | code plus auth or migration scope, a hunk the gate scan tags (an RH rule: a relaxed threshold, a skipped test), a deleted code file, CI workflows, credential or state-root paths | code's set, plus the Red Team always, at full effort, and no hit-rate gating |
+| **light**, runtime 0 | docs and tests only, or only registered outputs | the core checklist only; the outside voice when the diff publishes numbers |
+| **light**, runtime 1–50 | `SMALL_DIFF_LINES` or fewer runtime lines | core, one **batched** specialist (testing, maintainability and security checklists, the specialists scope selects and the Red Team prompt in one context), the native adversarial pass (kept: backtest inconclusive, GSTA-147 D5) and the outside voice on numbers |
+| **standard** | more than 50 runtime lines | the code set with every threshold (specialists at 50, simplification at 100, Red Team at 200) read on runtime lines; specialists leave docs and registered outputs out of their diff, and every specialist but Testing leaves tests out too; adversarial and outside voice read everything |
+| **full** | gate class, or any classifier error | the gate set, unchanged: every reviewer on the whole diff, the Red Team always, no hit-rate gating |
 
-**Numbers keep the outside voice.** On a docs or tests diff the outside voice is
-skipped unless the diff publishes numeric claims: `gstack-review-plan` scans the
-added lines of every path for percentages, money, multipliers, durations, token
-or credit counts and score, rate or speed claims (`NUMBERS: yes`), and a
-claim always dispatches it. The claims' fingerprint (`fingerprint=`) is passed
-back as `--reviewed-numbers`; when a later fix changes a claim, only the
-outside voice reruns, on the numbers.
+A fixed blocking finding, a CRITICAL or an open blocker raises a light diff to
+standard for the next step (`step=standard`): its specialists read at least 50 lines
+and the Red Team runs, so a raise never dispatches less than light did. A fix-check
+is the same at every depth.
+
+**Fail closed.** Each of these makes the depth full and is listed in `errors[]` with
+the input it could not read, a sanitized cause and the repair: a `gstack-diff-scope`
+error, a gate scan that is unavailable, a base registry that cannot be read or is
+invalid (`REGEN_REGISTRY_INVALID` or `REGEN_CONTAINMENT` in `codes=`), a numstat git
+could not produce, and a binary code-class path (it is never counted as 0 lines).
+
+**The registry rule.** Only the base commit's registry counts (the merge base's
+`origin/<base>` commit for live /ship and the current base ref's commit for the queue: `origin/<base>` in `ready`, `<remote>/<base>` in `train build`), and only
+entries with a `command`, which pregate's regen check proves for that tree. An entry
+added on the branch never excludes anything; `command: null` entries, vendored code
+and lockfiles stay runtime. To adopt it, commit an entry like this on the base branch:
+
+```json
+{
+  "$schema": "https://github.com/garrytan/gstack/docs/pregate.md#generated-v1",
+  "entries": [
+    { "id": "skill-docs", "command": "bun run gen:skill-docs --host all", "outputs": ["*/SKILL.md", "*/sections/*.md"], "inputs": ["*/SKILL.md.tmpl", "*/sections/*.tmpl"] }
+  ]
+}
+```
+
+**Gate paths for the machinery itself.** An edit to `lib/review-depth.ts`,
+`lib/review-collect.ts`, `bin/gstack-review-plan`, `lib/review-scope.ts`,
+`lib/ship-queue*.ts`, `lib/regen.ts`, `.gstack/generated.json`,
+`ship/sections/review-army.md.tmpl`, `ship/sections/adversarial.md.tmpl` or
+`scripts/resolvers/review-army.ts` is gate class: changing how much review runs gets
+the most review. `rules=` (`DEPTH_RULES`) hashes the deciding constants and patterns,
+not file bytes, so a comment edit keeps it.
+
+**`--depth-floor standard|full`** (a /ship prompt flag, passed to every plan run)
+raises the depth and never lowers it.
+
+**Numbers keep the outside voice.** At light depth the outside voice runs only when
+the diff publishes numeric claims: `gstack-review-plan` scans the added lines of
+prose and data files for percentages, money, multipliers, durations, token or credit
+counts and score, rate or speed claims (`NUMBERS: yes`). The claims' fingerprint
+(`fingerprint=`) is passed back as `--reviewed-numbers`; when a later fix changes a
+claim, only the outside voice reruns, on the numbers. It always reads the whole diff.
 
 **The adversarial and outside voices run once per invocation** (Step 11, on the
 final tree), as the last full-pass plan lists them; after they ran, decision 2
@@ -166,6 +215,15 @@ default. `gstack-config set review_effort_tiers off` (or `--no-tiers`) runs
 the audits and watchers at the host default too
 ([model-policy.md](model-policy.md#reasoning-effort)).
 
+### Behavior changes
+
+- A tests-only diff (runtime 0) no longer dispatches the Testing specialist: the
+  core checklist and the gate scan review it.
+- Light no longer runs a separate Red Team: the batched specialist carries its
+  prompt. At runtime 0 light runs no adversarial pass either.
+- Standard reads thresholds on runtime lines, not the whole diff, so a test-heavy
+  diff with few runtime lines dispatches fewer specialists.
+
 ## What the receipt records
 
 `gstack-review-scope summary --since <REVIEW_SINCE>` reads this invocation's
@@ -190,6 +248,13 @@ specialist stats they record). The summary line appends `fix_checks=`,
 `dispatches=` and `est_input_tokens=` only when they were recorded, so an old
 loop prints the old line.
 
+Beside the counters, `write` records `review_depth` (the depth, runtime lines,
+rules hash, base and registry commits, and the gate scan bound to the head) and
+the queue refuses a receipt below the depth its head needs
+([ship-policy.md#ship-receipt](ship-policy.md#ship-receipt)). A stop the owner
+accepted after a fix-check edit goes in `review_loop_exception`, never in prose
+under `REVIEW_LOOP:`.
+
 The receipt's summary line prints `passes=<n> blocking_found=<k> deferred=<m>`,
 which is what a scorecard tracks (target: a median of 1 pass per PR). A
 receipt carried across a base merge or a test-only fix
@@ -268,9 +333,10 @@ trailers, appended }`.
 
 ## Where this is enforced
 
-- `scripts/resolvers/review-army.ts`: the floor and `NO FINDINGS` in every specialist and Red Team prompt (rendered into `review/sections/review-army.md` and `ship/sections/review-army.md`), and the lead judgment's "On record" line that turns a [ruled class](#rulings-below-the-floor) into a note; in `/ship` every specialist and Red Team prompt it renders carries its diff base as a literal sha the parent writes in (`DIFF_BASE=<diff-base>`: the merge base on pass 1, `RANGE_BASE` from pass 2 on), because a reviewer is its own process and never sees the parent's shell variables; the fan-out batches above.
-- `ship/sections/review-army.md` Step 9: passes, `RANGE_BASE`, classify, defer, render, the cap check before any edit, the Step 11 late-defer row, scratch files under `.gstack/tmp/`, the cap decisions; `ship/sections/adversarial.md` Step 11: the outside voice reads the same range and scopes queued fixes the same way.
-- `lib/review-depth.ts`, `bin/gstack-review-plan`: the diff class, the transition table, the numeric-claim scan and each role's effort tier (`test/review-depth.test.ts`, `test/review-plan-cli.test.ts`).
+- `scripts/resolvers/review-army.ts`: the floor and `NO FINDINGS` in every specialist and Red Team prompt (rendered into `review/sections/review-army.md` and `ship/sections/review-army.md`), and the lead judgment's "On record" line that turns a [ruled class](#rulings-below-the-floor) into a note; in `/ship` every specialist and Red Team prompt it renders carries its diff base as a literal sha the parent writes in (`DIFF_BASE=<diff-base>`: the merge base on pass 1, `RANGE_BASE` from pass 2 on) beside its plan's `DIFF_CMD` excludes, because a reviewer is its own process and never sees the parent's shell variables; the fan-out batches above.
+- `ship/sections/review-army.md` Step 9: the plan's `REVIEW_DEPTH`, `GATE_SCAN` and `--depth-floor` on every run, the depth fields of the review-log row, passes, `RANGE_BASE`, classify, defer, render, the cap check before any edit, the Step 11 late-defer row, scratch files under `.gstack/tmp/`, the cap decisions; `ship/sections/adversarial.md` Step 11: the outside voice reads the same range and scopes queued fixes the same way.
+- `lib/review-depth.ts`, `bin/gstack-review-plan`: the diff class, the depth (`depthFor`, `DEPTH_RULES`, `depthOfCommitInput`), each dispatch's `exclude` pathspecs and `DIFF_CMD`, the transition table, the numeric-claim scan and each role's effort tier (`test/review-depth.test.ts`, `test/review-plan-cli.test.ts`).
+- `lib/review-collect.ts`: `collectCommit` (git objects only, from any checkout) and `collectLive` (the working tree), per-path lines and the base commit's registry (`test/review-collect.test.ts`).
 - `lib/review-scope.ts`, `bin/gstack-review-scope`: `classify`, `defer`, `render`, `summary` (with `fix_checks`, `dispatches`, `est_input_tokens`); refusals are `REVIEW_SCOPE_INPUT` and `REVIEW_SCOPE_RANGE` ([troubleshooting.md](troubleshooting.md#review-scope-input)).
 - `lib/ship-policy.ts`: the `review_scope` key and its `ship: review_scope …` consequence line.
 - `review/checklist.md`: `prereg-with-results` under Gate Integrity and `test-keyboard-count-loop` under Pass 2; `bin/gstack-coauthor-trailers` for the contributor-credit trailers of a port.

docs/ship-policy.md

@@ -221,8 +221,11 @@ It refuses (`QUEUE_NOT_READY`) when the working tree has tracked edits, HEAD
 is not the PR's pushed head, CI at that exact head is not green, or the pregate
 result is not a current pass, and (`QUEUE_RECEIPT_MISSING`,
 `QUEUE_RECEIPT_STALE`) when the PR body carries no /ship receipt for that
-head: /ship runs before every READY ([details](#ship-before-ready)). Send the
-block as printed.
+head: /ship runs before every READY ([details](#ship-before-ready)). It also
+refuses `QUEUE_RECEIPT_DEPTH_RAISED` when the receipt's review depth is below
+what the head needs and `QUEUE_RECEIPT_EXCEPTION_INVALID` when an owner
+exception the receipt records does not stand ([the ship receipt](#ship-receipt)).
+Send the block as printed.
 
 **2. Lane behind another PR: gate ahead.** Gate the tree the queue will have
 once the predecessor lands, while it is still open:
@@ -370,12 +373,17 @@ slot. The queue enforces this at every step from the PR body alone:
 - `ready` refuses with `QUEUE_RECEIPT_MISSING` when the body has no valid
   receipt and with `QUEUE_RECEIPT_STALE` when the receipt's `head` is not the
   head being READY'd (or its `pr` is another PR); the informational
-  `SHIP_RECEIPT:` line still prints. There is no flag around it.
+  `SHIP_RECEIPT:` line still prints. It refuses `QUEUE_RECEIPT_DEPTH_RAISED`
+  (with a `REVIEW_DEPTH:` line) when the receipt records a review depth below
+  what the head needs, and `QUEUE_RECEIPT_EXCEPTION_INVALID` when an owner
+  exception it records does not stand ([the ship receipt](#ship-receipt)).
+  There is no flag around it.
 - `train build` refuses a pin whose PR has no current receipt with the same
   codes, naming the PR, before anything is written, pushed or dispatched,
   `--dry-run` included.
-- `verify --train` refuses the slot with the same codes before printing
-  `MERGE_CONDITION`.
+- `verify --train` refuses the slot with `QUEUE_RECEIPT_MISSING` or
+  `QUEUE_RECEIPT_STALE` before printing `MERGE_CONDITION`; it does not
+  recompute the review depth.
 
 **The stamp keeps the pin's receipt.** The slot's stamp commit changes only
 stamp files (and, from slot 2 on, merges main into the pin), so no /ship runs
@@ -478,6 +486,9 @@ its record. Refusals, all before any spend: `QUEUE_TRAIN_UNTRUSTED` (a fork
 head), `QUEUE_TRAIN_MOVED` (a head moved from its pin),
 `QUEUE_RECEIPT_MISSING` and `QUEUE_RECEIPT_STALE` (the PR body has no /ship
 receipt for the pin; see [/ship before READY](#ship-before-ready)),
+`QUEUE_RECEIPT_DEPTH_RAISED` and `QUEUE_RECEIPT_EXCEPTION_INVALID` (the
+receipt's review depth is below what the pin needs, or an owner exception it
+records does not stand; see [the ship receipt](#ship-receipt)),
 `QUEUE_NOT_READY` (no READY receipt at that head), `QUEUE_TRAIN_CONFLICT` (the printed
 `QUEUE_TRAIN_CONFLICT: train <id> stopped at #<pr> (conflicts: <files>) after
 merging #<a>,#<b>; nothing dispatched, no branch pushed; fix: …` line names
@@ -777,7 +788,9 @@ written by the pr-body section of `/ship` after the body is composed.
 
 The ```` ```gstack-ship-receipt ```` block is the handoff record: identifiers
 first (`pr`, `head`, `version`, `base`), then the evidence (`gate`, `ci`,
-`pregate`, `issues`, `approval`, `docs`, `review_loop`, `carry`), validated
+`head_tree`, `product_patch_id`, `gstack_version`, `review_depth`, `pregate`,
+`issues`, `approval`, `docs`, `review_loop`, `review_loop_exception`, `carry`),
+validated
 against the `ship-receipt` schema (`gstack-artifact schema ship-receipt`) and
 read back by `gstack-ship-receipt read`, `result`, `carry` and the queue.
 
@@ -812,6 +825,46 @@ unreadable base policy is `POLICY_SOURCE_UNAVAILABLE`); one
 (`absent/<max> over` for a path the tree lacks), exit 1 on any `over`, whose
 repair is trimming the file, never raising the cap in the same PR.
 
+**`review_depth` and `gstack_version`.** `write` records the gstack that
+wrote the receipt and the review depth at the checked-out head
+([review-policy.md#review-depth](review-policy.md#review-depth)):
+`{ depth, class, runtime_lines, rules, base, registry, gate_scan: { tagged, head }, reasons }`,
+computed from git objects for the range against `origin/<base>`
+(`gstack-diff-scope <base> --head <sha>` for the scope signals), with the gate
+scan run on that head. `--head` must be the checked-out HEAD
+(`RECEIPT_INVALID` otherwise), so the record and `head_tree` describe the
+tree the review read; tracked edits in the checkout make the scan unavailable,
+which records `full`. `gstack-ship-queue ready` and `train build` recompute
+the depth the head needs from the same range and scope and print `REVIEW_DEPTH: receipt=<d> required=<d>
+runtime_lines=<n> class=<c> reasons=<…> inputs=base@<sha>,registry@<sha>,gate_scan@<sha|missing>`;
+a recorded gate scan counts only when its `head` is the full bound commit,
+otherwise the scan is unavailable and the head needs `full`. A receipt below the required
+depth, or one whose writer records `gstack_version` but no `review_depth`, is
+[`QUEUE_RECEIPT_DEPTH_RAISED`](troubleshooting.md#queue-receipt-depth-raised):
+the receipt is left unchanged and the fix is /ship on that head. A receipt with
+neither field predates depth receipts and is accepted as legacy. A carry
+recomputes the depth at the new head, rebinds the gate scan, and refuses when
+the new head needs a deeper review than the receipt records (a test change that
+skips a test raises the diff to gate class), when `--head` is not the
+checked-out HEAD, when the receipt records `gstack_version` without
+`review_depth`, or when an owner exception no longer stands, each as
+[`RECEIPT_CARRY_REFUSED`](troubleshooting.md#receipt-carry-refused).
+
+**`review_loop_exception`.** The owner's acceptance of a stop after a
+fix-check edit under frozen scope (#3559), from `write --review-loop-exception
+<json|@file>`: `{ accepted_by, date, via, reason, fix_check: { head, findings[, files] } }`.
+It needs `--review-loop` with `fix_checks` of 1 or more, a `fix_check.head`
+that is the receipt head or its ancestor, and, with `--body`, the line
+`Review-loop exception: accepted by <owner> <date> via <ref>: <reason> (fix-check at <sha12>, <n> findings)`
+word for word; otherwise
+[`REVIEW_LOOP_EXCEPTION_INVALID`](troubleshooting.md#review-loop-exception-invalid)
+and nothing is written. The queue checks both owner exceptions the same way
+before READY and train build: the record must parse, the body must still
+carry its line, and the fix-check head must be the bound head or its ancestor
+(after a carry across rewritten history the old fix-check commit is off the
+branch, so that check is skipped), or the receipt is
+[`QUEUE_RECEIPT_EXCEPTION_INVALID`](troubleshooting.md#queue-receipt-exception-invalid).
+
 **Prose against the receipt.** `gstack-ship-receipt read --pr <n> --check-prose`
 (or `--body <file>`) compares every counter the body quotes with the receipt's
 integers under `review_loop`, `gate` and `ci`: `passes=2`, `passes: 2` and
@@ -891,6 +944,16 @@ line, and the codes a refusal ends with are
 <a id="receipt-carry"></a>
 ## Carrying a receipt across a base merge or a test-only fix
 
+**Merge main into a reviewed branch; never rebase it.** What happens to the
+receipt when the base moves:
+
+| What changed since /ship | The receipt |
+|---|---|
+| a merge of the base, product diff unchanged (tests, release metadata, registered outputs the pregate's regen check proved) | carries; no review reruns |
+| a merge of the base whose resolution changed product code | a fresh /ship (`RECEIPT_CARRY_PRODUCT_CHANGED`) |
+| a rebase or force-push onto a tree the receipt covers, product diff against the new base unchanged | carries (`carry.ancestry: rewritten`) |
+| any other rebase or force-push | a fresh /ship (`RECEIPT_CARRY_TREE_MISMATCH`) |
+
 Since the release that added `review_scope`. A `/ship` receipt names the head it
 reviewed, so a conflict-only merge of the base or a test-only fix used to
 invalidate it and cost a full re-run on identical product code.
@@ -921,11 +984,22 @@ newer tentative one the stamp moved (a `*_KEY_VERSION` written as the next
 minor, #3512; a version older than the old one or of another width is a hand
 edit). A logic change in a
 stamped source file is product. Lockfiles are product unless the policy names
-them. A base merge contributes no product
-change of its own. A receipt carried twice keeps the reviewed head as
+them. An output of an entry with a `command` in origin/<base>'s
+`.gstack/generated.json` is `generated`, not product, only when the
+`--pregate` result passed for HEAD lists it under the `regen` check's
+`proven` paths (the check deleted the touched output in its scratch worktree
+and the command recreated it byte-identically) and that check ran the same
+registry, origin/<base> at the commit the carry reads. A file that matches an
+output glob but that the command never writes is not proven. Without that
+evidence, or for an entry with no command or one only the branch registers,
+the output is product (U1 on gstack-evals paid a
+full rerun because a merge changed its generated index's diff). A base merge
+contributes no product change of its own. A receipt carried twice keeps the reviewed head as
 `carry.from` and adds up the merges and paths. The carried receipt records
 `carry: { from, reason, product_patch_id, changed_paths, merge_commits,
-range_diff, covers, reruns }` with the `git range-diff` evidence, prints
+range_diff, covers, reruns, ancestry, trees }` (`ancestry` is `linear`
+along the receipt's own history, `rewritten` once any hop was a rebase;
+`trees` lists the earlier covered trees) with the `git range-diff` evidence, prints
 `CARRY: carried from <old> to <new> (<reason>)` and the `GSTACK_RESULT:
 skill=ship status=complete` line, and its summary line ends with
 `carried_from=<old12>`. `CARRY: current` means the receipt already names HEAD;
@@ -933,10 +1007,25 @@ skill=ship status=complete` line, and its summary line ends with
 
 A changed product path, or a product patch-id that differs, is
 [`RECEIPT_CARRY_PRODUCT_CHANGED`](troubleshooting.md#receipt-carry-product-changed)
-(exit 3; the refusal names the paths), and a receipt whose head is not in HEAD's
-history (a rebase or force-push) or a working tree with uncommitted changes is
-[`RECEIPT_CARRY_REFUSED`](troubleshooting.md#receipt-carry-refused): run `/ship`
-on the new head. The queue's `ready`, `train build` and `verify --train` read the
+(exit 3; the refusal names the paths), and a working tree with uncommitted
+changes is [`RECEIPT_CARRY_REFUSED`](troubleshooting.md#receipt-carry-refused).
+
+**Rewritten history.** `write` records `head_tree` (the reviewed head's tree)
+and `product_patch_id` (its product patch against the base), and every carry
+rebinds both to the new head and keeps the earlier trees in `carry.trees`.
+When the receipt's head is no longer in HEAD's history, the carry follows only
+when HEAD's tree is one of those trees and HEAD's product patch-id against the
+current base equals the recorded one; it records `carry.ancestry: rewritten`
+and `range_diff: tree-equal`, and needs neither the old commit nor its
+history, so a fresh clone carries too. The tree alone is not enough: a stacked
+branch rebased onto main after its base closed unmerged keeps its tree while
+its diff grows by the base's code, and that is `RECEIPT_CARRY_PRODUCT_CHANGED`.
+Any other tree is
+[`RECEIPT_CARRY_TREE_MISMATCH`](troubleshooting.md#receipt-carry-tree-mismatch),
+which names HEAD's tree and the covered trees. A receipt from before
+`head_tree` existed, whose head is not in this clone, is
+`RECEIPT_CARRY_REFUSED`: run `/ship` on the new head. A refusal never
+rewrites the body. The queue's `ready`, `train build` and `verify --train` read the
 carried receipt like any other.
 
 **Delta /ship: eligibility, then checks, then publication.** `/ship` Step 1 runs
@@ -995,7 +1084,7 @@ or the order moved, the result is `QUEUE_STALE` (exit 3) with the exact
 Stages, each journaled in `.gstack/tmp/restamp-journal.json`:
 
 0. **restamp_command** (only when the policy sets it): the repo's own restamp, see [restamp_command](#restamp-command).
-1. **version**: `gstack-version-bump write --version <X>` in the staging worktree (VERSION, the manifest, npm lockfiles); skipped when `restamp_command` owns the version.
+1. **version**: `gstack-version-bump write --version <X>` in the staging worktree (VERSION, the manifest, npm lockfiles); skipped when `restamp_command` owns the version. The manifest gets the npm-valid three-part form, except when the policy lists it in `stamp_paths` or `stamp_files` and its copy at the base holds four parts (gbrain's convention): then it keeps the full version (`--manifest-form full`) and the stage detail says so.
 2. **release_tool**: the policy command, under the contract below.
 3. **changelog**: the PR's `[Unreleased]` or old-version section moves to the top under `<X>`, above its predecessor's entry. A duplicate heading the PR introduces (`CHANGELOG_DUPLICATE_HEADING`: the headings are counted against the base's CHANGELOG at `origin/<base>` and at the fork point, so a version the base already heads twice passes as long as the PR adds no further copy) and a top entry that is not `<X>` (`CHANGELOG_TOP_MISMATCH`) are errors; the section being re-headed itself may exist only once.
 4. **stamp_paths**: exact `(was X)`, `since: X` and `vX` rewrites, plus every `stamp_patterns` template, within `stamp_paths` and `stamp_files`. A quote around X in the first two forms is part of the form and is kept as written: `since: 'X'`, `since: "X"`, `(was 'X')` and `(was "X")` move like the bare ones (the shape of a quoted source row such as gbrain's `{ since: '0.60.468.0', … }`), an opened quote must close right after X (`since: '1.2.3-beta'` and `since: '1.2.3"` are not the form, in the writer and in the tree receipt alike), and `vX` already accepts a quote before the `v`. Which X moves is decided by provenance. The branch's own tentative stamp (its VERSION when it moved past base) and `--was <X>`, when given, are each rewritten on every line of every stamp file. Beyond that, only lines the branch itself added are read, by their position in the file (`git diff --unified=0` from the fork point), so a base line with the same text, or a CRLF checkout whose diff is LF-normalized, is told apart: a stamp-form mention there of a version newer than the version at the branch's fork point is a tentative stamp and moves (this is what finds a quoted row after a lost slot and a merge of the base, since the base's release is newer than the fork point), and when the branch has no stamp of its own because its VERSION equals the base's and its fork point is the base itself (a branch rebased onto the base after it reached X, or one never stamped) a mention of the base version on a line it added is its stale stamp and moves too, while the same version on a line the base already carries is the base's release and stays. The stage detail names both counts per file (`VERSION equals base X, so X moved only on lines this branch added and stayed on the base's own lines (<file>: N moved, M kept)`), so the stamp commit shows which lines moved and why. A line the base added since the fork point is the base's even when that diff shows it (a merge of the base on the branch, committed or still staged, brings every line the base added since the fork into the diff from the fork point, main's own release keys included): it is left out, the detail says `N line(s) the base added since the fork point are the base's, not this branch's, and stay (<file>: N)`, and a base diff git cannot run refuses the stage (`POLICY_SOURCE_UNAVAILABLE`, `cannot diff <since>..<base> for the stamp_paths stage`) rather than reading as an empty set that would move the base's lines again. The rule reads line ownership, not meaning: a branch-added line inside `stamp_paths` that means the base's own release in a stamp form (`Requires vX or later` written on a branch forked at X) moves with it, which the `--dry-run` diff and the per-file counts show before anything is written; write such a reference outside a stamp form, or keep that file out of `stamp_paths`. `--was X` is the opposite tool: it rewrites X everywhere, the base's own lines included, and re-heads the CHANGELOG section `## [X]`. Only the repo's own version width counts, so a 3-digit dependency pin in a 4-digit repo is never a candidate.

docs/troubleshooting.md

@@ -1566,11 +1566,19 @@ process has exited never blocks, and neither does a stale one: each lease
 records its process's start identity, so a pid reused after a reboot or a
 machine wake (GBRA-105's lease named pid 379, which had become dbus-daemon)
 is reclaimed instead of blocking. The upgrader's own session (the pid chain it
-runs under) never counts.
+runs under) never counts for `bin/gstack-upgrade` run by hand. A Capy install
+in install mode (`bin/gstack-capy-session`) counts it while that lease is under
+120 minutes old: an install run from inside a workflow that holds the lease
+(/ship's docs step, #3571) prints `SELF_UPGRADE: skipped (a gstack run in this
+session holds a workflow lease on this installation: pid <p> (<age>m
+<command>), so the upgrade waits until the lease is 120 minutes old; fix:
+<checkout>/bin/gstack-upgrade once the run ends (UPGRADE_BUSY))` and leaves the
+checkout where the run started. Each `gstack-skill-start` renews the lease.
 
 **Fix.** Wait for those sessions to finish (`bin/gstack-lease list` shows
 every lease with its age and `alive|dead|stale`; a holder is named as
-`pid <p> (<age>m <command>)`), then re-run `bin/gstack-upgrade`.
+`pid <p> (<age>m <command>)`), then re-run `bin/gstack-upgrade`. For the
+session's own run, run the printed `bin/gstack-upgrade` after the run ends.
 When you know they are idle, `GSTACK_UPGRADE_FORCE=1 bin/gstack-upgrade`
 proceeds. At a Capy session start the same refusal appears as
 `SELF_UPGRADE: skipped (live gstack sessions hold this installation: ...)`,
@@ -2393,6 +2401,14 @@ and an E.164 `+14155551234` still report, so the finding means the id stands
 without a run word (`the id is 40269992077`, `40269992077 failed`) or follows
 a word that is not one (`see 40323989742`).
 
+Separately, the scanner skips a bare number that is exactly a power of two
+from 2^30 through 2^49, one less than such a power, or one of eleven 32-bit
+hash and PRNG constants (Knuth's multiplicative hash, the golden-ratio
+constant, the glibc and Numerical Recipes LCGs, FNV-1a, MurmurHash2 and 3, the
+MT19937 seeder and the largest 32-bit prime; `isNumericConstant` in
+`lib/redact-patterns.ts`). Only the exact digits with no separator are exempt:
+the same digits with a `+`, spaces, dashes, dots or parentheses still report.
+
 **Fix.** Write the id next to a run word (`run 40269992077`) or as an
 `/actions/runs/` link. For anything else, rerun with `--confirm <token>`
 using the `TOKEN:` line the refusal printed; MEDIUM findings do not block
@@ -2433,6 +2449,15 @@ An address only another remote knows still reports. If the hook also printed
 `existing-email suppression was limited for this push`, it could not read the
 history in 5 seconds, so known authors may be listed too.
 
+A filename with an `@` in the package@version style is not an address and
+never reports: the part after the `@` is a version or tag (one dotless label
+or a dotted version, never a domain name) followed by file extensions no
+top-level domain uses, or a dotted all-digit version followed by
+an extension that doubles as a top-level domain (`looksLikeAtFilename` in
+`lib/redact-patterns.ts`). A file named after a real address, an address at an
+all-digit domain and an address whose top-level domain doubles as a file
+extension still report.
+
 **Fix.** Remove the address, or allow it for this repo:
 `git config --add gstack.redact.allowEmail <address>`. If it is your own
 address, check `git config user.email`. The allowlist only covers `pii.email`;
@@ -2905,10 +2930,12 @@ for an older PR, write it once by hand with the same command.
 ### `RECEIPT_INVALID`
 
 **Meaning.** The block exists but does not validate against the `ship-receipt`
-schema (`gstack-artifact schema ship-receipt`).
+schema (`gstack-artifact schema ship-receipt`). `gstack-ship-receipt write`
+also refuses with this code, and writes nothing, when `--head` is not the
+checked-out HEAD: the receipt binds the tree the review read.
 
 **Fix.** Regenerate it with `gstack-ship-receipt write`; never hand-edit the
-block.
+block. For the `--head` refusal, check out that commit and write there.
 <a id="execution-unknown"></a>
 ### `EXECUTION_UNKNOWN`
 
@@ -3155,7 +3182,10 @@ cannot be downgraded; every other check id in `warn` is honoured only from the
 base branch's copy or the user-owned file. For the user-owned file, edit it
 directly at the path the message names. A user file inside the repository, or
 reached through a symlink into it, is ignored rather than read (`--explain`
-names it).
+names it). An unknown `sealed` key that a newer gstack defines (such as
+`allow_paths` or `case_insensitive`) means this machine's gstack is older than
+the policy: upgrade gstack here, and raise `min_gstack_version` in the
+repository's `.gstack/ship-policy.json` before landing such a key.
 
 <a id="pregate-secrets"></a>
 ### `PREGATE_SECRETS`
@@ -3661,7 +3691,11 @@ finding: rule, `file[:line]`, commit. They never print the matched text.
 
 **Fix.** Remove the output from every published commit before the branch
 reaches the public repository (a later commit that deletes it still publishes
-it). A reviewed false positive gets one line in the base branch's
+it). A publishable file kept next to sealed data (a `MANIFEST.json` of hashes
+and counts) can be exempted from the path rules with a `sealed.allow_paths`
+glob in the base branch's `.gstack/pregate.json`; the text rules still read it
+([docs/pregate.md#sealed](pregate.md#sealed)). A reviewed false positive gets
+one line in the base branch's
 `.gstack/sealed-allow.tsv`: `rule<TAB>path<TAB>sha<TAB>reason`. A private
 destination sets `"visibility": "private"` under `sealed` in the base branch's
 `.gstack/pregate.json`. Capy's pull-request tool may not run local hooks, so
@@ -4439,6 +4473,39 @@ written for the pinned head is the binding one and `verify --train` accepts it.
 `gstack-ship-queue ready --pr <n> --screen|--no-screen`. A lane never stamps
 to fix this: the stamp comes only when the slot is called.
 
+<a id="queue-receipt-depth-raised"></a>
+### `QUEUE_RECEIPT_DEPTH_RAISED`
+
+**Meaning.** `ready` or `train build` recomputed the review depth the head
+needs from git (the range against the base ref, `origin/<base>` in `ready`
+and `<remote>/<base>` in `train build`, the base commit's
+generated-output registry, and the receipt's gate scan when it names this
+head) and the receipt's `review_depth.depth` is below it, or the receipt comes
+from a gstack that records `gstack_version` but carries no `review_depth`. The
+`REVIEW_DEPTH:` line prints the receipt's depth, the required depth, runtime
+lines, the class, the reasons and the inputs (`base@`, `registry@`,
+`gate_scan@` or `missing`). A gate scan recorded for another head counts as
+missing, which makes the head need `full`. The receipt is unchanged.
+
+**Fix.** Run /ship on the head the READY names; it reviews at the depth
+`gstack-review-plan` plans for that head and writes a receipt that records it.
+Never edit `review_depth` by hand ([review-policy.md](review-policy.md#review-depth)).
+
+<a id="queue-receipt-exception-invalid"></a>
+### `QUEUE_RECEIPT_EXCEPTION_INVALID`
+
+**Meaning.** The receipt records an owner exception (`docs.exception` or
+`review_loop_exception`) that the queue cannot accept: the record does not
+parse, a review-loop exception names no fix-check (`review_loop.fix_checks`
+is 0 or missing), its `fix_check.head` is neither the bound head nor an
+ancestor of it (not checked after a carry across rewritten history), or the PR
+body no longer carries the exception's line word for word
+(`Documentation exception: …` or `Review-loop exception: …`).
+
+**Fix.** Restore the line in the PR body exactly as `write` printed it, or run
+/ship again and record the owner's acceptance with `--docs` or
+`--review-loop-exception` ([ship-policy.md](ship-policy.md#ship-receipt)).
+
 <a id="queue-screen-stale-ref"></a>
 ### `QUEUE_SCREEN_STALE_REF`
 
@@ -4699,29 +4766,70 @@ rebased; /ship's own rule is to merge the base in, never rebase a reviewed head.
 ### `RECEIPT_CARRY_REFUSED`
 
 **Meaning.** `gstack-ship-receipt carry` could not carry the PR's /ship receipt
-to HEAD: the PR body has no valid receipt, the receipt's head is not an ancestor
-of HEAD (a rebase or force-push dropped it), the working tree has uncommitted
-or untracked changes (a carry certifies a commit, never a tree that differs from
-it), or git could not compare the two product diffs or read the working tree's
-status. The receipt in the body is unchanged and still names the old head, so
-`gstack-ship-queue ready` refuses `QUEUE_RECEIPT_STALE`.
+to HEAD: the PR body has no valid receipt, the working tree has uncommitted or
+untracked changes (a carry certifies a commit, never a tree that differs from
+it), the receipt's head left HEAD's history and the receipt records no tree to
+compare (a receipt written before `head_tree`, whose head is not in this
+clone), or git could not compare the two product diffs or read the working
+tree's status. It also refuses when an owner exception the receipt records
+no longer stands, and, for a receipt from a gstack that records review
+depth, when HEAD needs a deeper review than the receipt records, `--head` is
+not the checked-out HEAD, or the receipt records `gstack_version` without
+`review_depth` ([ship-policy.md](ship-policy.md#ship-receipt)). The receipt in
+the body is unchanged and still names the old head, so `gstack-ship-queue
+ready` refuses `QUEUE_RECEIPT_STALE`.
 
-**Fix.** Keep the reviewed head in HEAD's history (merge the base in instead of
-rebasing), commit or stash every working-tree change, then rerun
+**Fix.** Commit or stash every working-tree change, then rerun
 `gstack-ship-receipt carry --pr <n>` at the new head. When the history is
-already rewritten, run /ship on the new head.
+already rewritten and the receipt predates `head_tree`, run /ship on the new
+head; next time merge the base in instead of rebasing. For a depth or
+exception refusal, run /ship on the new head (or check out `--head` and carry
+there).
+
+<a id="review-loop-exception-invalid"></a>
+### `REVIEW_LOOP_EXCEPTION_INVALID`
+
+**Meaning.** `gstack-ship-receipt write --review-loop-exception` refused the
+record and wrote nothing: it is not `{ accepted_by, date, via, reason,
+fix_check: { head, findings[, files] } }`, `--review-loop` is missing or counts
+no fix-check, `fix_check.head` is neither the receipt head nor its ancestor,
+or the `--body` file lacks the `Review-loop exception: …` line.
+
+**Fix.** Record the owner's exact words and the fix-check the stop followed,
+pass the `gstack-review-scope summary` file as `--review-loop`, put the printed
+line in the PR body, and write again
+([ship-policy.md](ship-policy.md#ship-receipt)).
+
+<a id="receipt-carry-tree-mismatch"></a>
+### `RECEIPT_CARRY_TREE_MISMATCH`
+
+**Meaning.** The branch was rebased or force-pushed after /ship, so the
+receipt's head is no longer in HEAD's history, and HEAD's tree is not a tree
+the receipt covers (its `head_tree` or a tree in `carry.trees`). No review saw
+this code. The refusal names HEAD's tree and the covered trees; the body is
+unchanged.
+
+**Fix.** Run /ship on the new head. A rebase carries only onto a reviewed tree
+whose product diff against the new base is unchanged; merging the base in
+instead keeps every later carry available
+([ship-policy.md](ship-policy.md#receipt-carry)).
 
 <a id="receipt-carry-product-changed"></a>
 ### `RECEIPT_CARRY_PRODUCT_CHANGED`
 
 **Meaning.** Between the receipt's head and HEAD the product diff against the
-base changed: at least one path that is neither a test, release metadata nor
-part of the base merge has a different patch than the reviewed head had. The
-reviewed verdict does not cover HEAD, so the receipt is not carried. The
-refusal names the changed product paths.
+base changed: at least one path that is neither a test, release metadata, a
+registered output the pregate's regen check proved (listed under `proven`,
+checked against the same base registry), nor part of the base merge has
+a different patch than the reviewed head had. After a rebase it means HEAD has
+the reviewed tree but the base moved under it, so the diff a reviewer would see
+is not the reviewed one. The reviewed verdict does not cover HEAD, so the
+receipt is not carried. The refusal names the changed product paths.
 
 **Fix.** Run /ship on the new head. The receipt carries only across a
-conflict-only base merge, a test-only change or release metadata, which the
+conflict-only base merge, a test-only change, release metadata, a registered
+output the pregate's regen check proved, or a rebase onto a covered tree with
+the recorded product diff, which the
 `carry` object in the carried receipt records with the product patch-id and
 the range-diff evidence ([unattended.md](unattended.md#the-terminal-line)).
 
@@ -5146,3 +5254,47 @@ QM's admin API refused or did not answer. gstack lists packs before it creates o
 
 QM registration does not work yet. QM's skill-pack import clones the whole repository and reads every file before it picks the skills, and by default it refuses a pack over 32 MiB or 5,000 files. The gstack repository is larger (about 73 MiB in 4,300 files), so gstack checks the size first and sends nothing. When QM itself refuses (a QM with other limits), the pack it created stays in the org without skills: `gstack-harness unregister qm --remote` archives it. Meanwhile, give a QM agent gstack by pasting the output of `gstack-harness register generic --print` into its instructions.
 
+
+## Module loadouts (gstack-modules)
+
+These codes come from `bin/gstack-modules` and `gen-skill-docs --loadout/--modules` (guide: [loadouts.md](loadouts.md)). Each one exits 2 before anything is written, and none falls back to the `full` loadout: an eval arm that silently rendered `full` would measure the control.
+
+<a id="loadouts-invalid"></a>
+### `LOADOUTS_INVALID: modules/loadouts.json …`
+
+**Meaning.** `modules/loadouts.json` is unreadable, or names a module, base loadout, rung or default that does not exist, excludes a pinned module, or maps one model id to two rungs. **Fix.** Correct the named entries, then run `bin/gstack-modules validate` until it prints `LOADOUTS: ok`; `git checkout -- modules/loadouts.json` restores the committed file.
+
+<a id="loadout-unknown"></a>
+### `LOADOUT_UNKNOWN: "<name>" is not a loadout (valid: …)`
+
+**Meaning.** `--loadout` or the first token of `--modules` names no loadout in `modules/loadouts.json`. **Fix.** Use a name from the `valid:` list (`bin/gstack-modules list` prints them); `full` is always present.
+
+<a id="module-spec-invalid"></a>
+### `MODULE_SPEC_INVALID: …`
+
+**Meaning.** A `--modules` token is not `-<module id>` or `+<module id>`, both `--loadout` and `--modules` were given, `gen:skill-docs` got a selection with exclusions but no `--out-dir`, or a render flag is missing or malformed. **Fix.** Write the spec as `<loadout>,-<id>,+<id>` (for example `full,-section:office-hours/second-opinion`) and pass the flags `bin/gstack-modules --help` lists.
+
+<a id="module-unknown"></a>
+### `MODULE_UNKNOWN: "<id>" is not a module`
+
+**Meaning.** The id names no skill, section, overlay or preamble piece. **Fix.** Copy the id from `bin/gstack-modules list`.
+
+<a id="module-pinned"></a>
+### `MODULE_PINNED: <id> is pinned and can never be excluded`
+
+**Meaning.** The spec removes a module the safety contract needs: the start command (`preamble:bash`), plan-mode rules, the question format, completion status, the unattended profile, /ship's review gates, the router or `/gstack-upgrade`. **Fix.** Drop `-<id>` from the spec; `bin/gstack-modules list --pinned` prints every pinned id.
+
+<a id="module-exclusion-unsafe"></a>
+### `MODULE_EXCLUSION_UNSAFE: <id>: referenced by <file>:<line>`
+
+**Meaning.** The rendered tree still points at a module the loadout left out, so an agent following it would read a file that is not there. **Fix.** Exclude the referencing module as well, or wrap the referencing skeleton text in `{{IF_SECTION:<id>}}…{{/IF_SECTION}}` in its template (the text renders unchanged when the section loads). Nothing was published; rerun after the change.
+
+<a id="render-failed"></a>
+### `RENDER_FAILED: gen-skill-docs failed: …`
+
+**Meaning.** Generation itself failed for this loadout (an unresolved placeholder, an oversized skill, a missing section). **Fix.** Fix the named template or module and rerun. The staging directory was removed and `--out-dir` is unchanged.
+
+<a id="render-dest-not-owned"></a>
+### `RENDER_DEST_NOT_OWNED: <dir> exists and holds no loadout.lock.json`
+
+**Meaning.** `--out-dir` is a non-empty directory that an earlier `gstack-modules render` did not write, so replacing it could delete someone's files. **Fix.** Pass a new or empty directory, or the directory of an earlier render.

docs/unattended.md

@@ -225,9 +225,10 @@ and reruns carry with `--pregate .gstack/tmp/pregate.json`. `CARRY: carried from
 now names HEAD with a `carry` object holding the `git range-diff` evidence, and
 `ship-run.json` gains `carried_from` and `carry_reason`; the `review_loop`
 counters are kept, because the reviewed product diff is unchanged. `CARRY:
-current` means nothing moved. `CARRY: refused (RECEIPT_CARRY_PRODUCT_CHANGED)`
-or `(RECEIPT_CARRY_REFUSED)` with the refused result line means the product
-diff changed or the reviewed head left HEAD's history, so /ship runs again;
+current` means nothing moved. `CARRY: refused (RECEIPT_CARRY_PRODUCT_CHANGED)`,
+`(RECEIPT_CARRY_TREE_MISMATCH)` or `(RECEIPT_CARRY_REFUSED)` with the refused
+result line means the product diff changed, or history was rewritten onto a
+tree no review saw, so /ship runs again;
 `(RECEIPT_GIT_TOO_OLD)` means the machine's git predates 2.39 and cannot run
 `patch-id --verbatim` ([ship-policy.md](ship-policy.md#receipt-carry)).