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fix(gbrain-install): --dry-run no longer requires the network (fixes flaky bun test) - #2540

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fix(gbrain-install): --dry-run no longer requires the network (fixes flaky bun test)#2540
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Fixes the bun test non-determinism in #2536. One-line guard, plus a comment explaining why it's there.

The bug

gstack-gbrain-install --dry-run prints a plan and exits without cloning anything — but it makes a live request to github.com first:

if ! $VALIDATE_ONLY; then
  check_prereq bun ...
  check_prereq git ...
  if ! curl -s --head --max-time 10 https://github.com >/dev/null 2>&1; then
    fail "cannot reach https://github.com. Check your network and try again."
  fi
fi

The check is gated on VALIDATE_ONLY. --dry-run sets DRY_RUN. So the dry-run path hits the network for a result nothing downstream uses — both dry-run branches exit 0 before any clone.

When that curl loses a race for sockets or DNS, fail() exits 3 and a dry run reports "cannot reach https://github.com" on a machine that is online.

Direct proof, no test runner involved

60 concurrent --dry-run invocations against temp HOME/GSTACK_HOME:

Failures
before 9 / 60 (~15%), all cannot reach https://github.com
after 0 / 60

Why this made the suite flaky

The three gstack-gbrain-install D5 detect-first tests each call run(INSTALL, ['--dry-run']) and assert expect(r.status).toBe(0). A full bun test spawns many concurrent processes, the curl occasionally loses, and whichever D5 test was running goes red.

Every symptom lines up: green in isolation (16/16, repeatedly), a different one of the three failing each run, sub-second failures rather than timeouts, and the observed exit code of exactly 3.

Validation

The documented Tier 1 gate, on a clean clone:

Runs Failed
before (#2536) 7 3 (43%)
after 10 0

Ten consecutive clean runs against a 43% per-run failure rate is roughly a 0.4% coincidence.

Scope

Real installs are unchanged — they still get the fail-fast offline check rather than a hanging git clone. Only the path that never clones skips it.

I first blamed a PATH leak and proposed defaulting SAFE_PATH in the test helper. That was wrong, and I've retracted it in #2536 — it would also have broken these tests on any machine where bun lives at ~/.bun/bin, which SAFE_PATH excludes.

Not addressed here

telemetry > connects to Supabase when config exists appeared once in my first sample and looks like the same shape — a real network call inside the free suite. I haven't investigated it and make no claim about it; noting it in case it's worth a look.

Environment: macOS (Darwin 25.5.0), bun 1.3.13, clean clone at 94993f7.

🤖 Generated with Claude Code

`gstack-gbrain-install --dry-run` prints a plan and exits without cloning, but
it ran the GitHub reachability check first. The check is gated on VALIDATE_ONLY,
and --dry-run sets DRY_RUN, so every dry run made a live request to github.com
that nothing downstream needed.

When that curl lost a race for sockets or DNS it called fail(), which exits 3,
and the dry run reported "cannot reach https://github.com" on a machine that was
online. Reproducible outside any test runner: 60 concurrent --dry-run
invocations against temp HOME/GSTACK_HOME failed 9 times, ~15%. With the guard,
0 of 60.

This is what made `bun test` non-deterministic. The three
`gstack-gbrain-install D5 detect-first` tests each call --dry-run and assert
exit 0, so a full suite -- which spawns plenty of concurrent processes -- lost
whichever of them happened to be running when the curl failed. That matches
every symptom: green in isolation, a different one of the three failing each
time, sub-second failures rather than timeouts, and 3 of 7 clean-clone suite
runs red before this change.

Real installs keep the fail-fast offline check; only the path that never clones
skips it.

Validation on a clean clone: the documented Tier 1 gate run 10 times, 0
failures, against a 43% failure rate on the same clone before the change.

Refs garrytan#2536

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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garrytan added a commit that referenced this pull request Aug 17, 2026
…ls, brain-sync integrity, 31 community PRs credited (#2604)

* fix(test): host-config goldens self-provision .agents/.factory artifacts

Fixes #2532. The codex/factory golden tests read gitignored artifacts that
only gen-skill-docs.test.ts (serial tree-mutating phase) produces, so the
file failed in isolation and on clean clones (the #2536 "3 failures then 0"
symptom). beforeAll now generates a host's artifacts iff its ship SKILL.md
is missing — never overwriting existing ones, so stale artifacts still fail
the golden. The file is also classified TREE_MUTATING so its provisioning
runs in the serial window, not racing parallel readers.

Verified: full pass with .agents/ and .factory/ deleted (74/74 in isolation).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(test): exempt the live repo tree from hermetic-wiring's operator-~/.claude ban

The skill-seeding tripwire asserted every seeded symlink target must NOT
start with ~/.claude — but on the default global-git install the repo
itself lives at ~/.claude/skills/gstack, so every CORRECT symlink (which
must resolve into the live repo tree, as the very next assertion requires)
carried the banned prefix. The test could never pass on a default install:
pristine v1.64.1.0 (c118e240) fails it in any worktree under
~/.claude/skills/ and passes elsewhere (verified 2026-08-15).

Exempt targets that realpath into the resolved repo ROOT before applying
the operatorClaude ban — realpath both sides so a symlinked HOME can't
dodge the tripwire. Genuine escapes (a target under ~/.claude but outside
the repo) still fail with the escape message.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(gen-skill-docs): quote YAML inline scalars containing '...' (Bun strict parser breaks on bare ellipsis)

A bare ... inside a plain YAML scalar is a document-end marker that strict
YAML parsers (Bun.YAML among them) reject mid-scalar. catalog-trim truncation
appends '...' to any description whose lead exceeds 200 chars, so any
truncated description would generate a SKILL.md with unparseable frontmatter.
Add the ellipsis test to toYamlInlineScalar's needsQuote so such scalars are
emitted double-quoted, plus unit coverage for the quoting rules.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(gen-skill-docs): throw when a template contains {{PREAMBLE}} twice

Hardens the #2508/#2362 class: a second {{PREAMBLE}} occurrence — even a
prose mention, which is exactly how spec/SKILL.md.tmpl re-expanded the full
~12K-token preamble mid-document — now fails generation with the template
path instead of silently shipping a doubled preamble. Pure exported guard
(assertSinglePreamble) called from resolvePlaceholders, unit-tested with the
original prose-mention shape.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(test): classify catalog-trim.test.ts as tree-mutating

Discovered while landing the duplicate-{{PREAMBLE}} guard: importing
scripts/gen-skill-docs.ts executes its top-level body, which regenerates the
entire claude host (71 GENERATED files) at import time. catalog-trim.test.ts
does that import from a PARALLEL shard — the same read-during-regeneration
hazard class as #2532, invisible only because the regen is byte-identical on
a fresh tree. Move it to the serial tree-mutating window.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(test): prepush hook test builds PATH with a POSIX-only separator

`test/redact-prepush-hook.test.ts` shadows `git` with a stub by prepending a
temp dir to PATH, built as `${stubDir}:${process.env.PATH}`. On Windows the
separator is `;`, so that produces one unparseable entry, the stub is never
found, and the REAL git runs — the diff succeeds, `gitStrict` never throws, and
the hook exits 0 where the test expects 1. It fails as a wrong assertion rather
than as a portability problem, which is what made it hard to place.

Replace it with a `prependPath` helper mirroring the one already in
test/gstack-brain-context-load.test.ts, which handles both platform details:
`path.delimiter`, and a case-insensitive lookup of the existing env key —
Windows commonly spells it `Path`, and adding a second `PATH` alongside an
inherited `Path` leaves the winner up to the spawn implementation.

On POSIX the helper resolves to `{ PATH: binDir + ":" + process.env.PATH }`,
byte-identical to the expression it replaces, so behaviour there is unchanged.

Fixing the separator alone does not make the test pass on Windows, and it
cannot: the premise is that a signal-killed child yields `spawnSync`
status === null, and Windows has no equivalent (a force-killed process reports
a non-zero exit code). The stub is also a `#!/bin/sh` file named `git`, which
Windows will not execute, since process creation resolves through PATHEXT and
ignores the shebang. A Windows variant would assert the non-zero-exit branch
instead — a different branch than the test name claims — so the test is gated
with test.skipIf(process.platform === "win32"), matching
test/session-runner-timeout.test.ts and test/setup-emoji-font.test.ts.

Windows before: 14 pass, 1 fail. After: 14 pass, 1 skip, 0 fail (3 consecutive
runs). Unchanged on POSIX, where it should still run and pass — worth
confirming in CI, since I can only verify the Windows half here.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(artifacts): sync the decision store, which no allowlist glob matched

gstack-decision-log enqueues projects/<slug>/decisions.jsonl after every write,
but none of the 16 managed globs matched it, so compute_paths_to_stage rejected
every one at its "must match at least one allowlist glob" check.

The writer and the syncer disagreed silently: enabling artifacts sync backed up
learnings, plans, designs and timelines -- everything except the durable decision
ledger -- and nothing reported a miss, because a dropped path prints exactly what
a synced one does when the queue is otherwise empty.

Add the three decisions.* globs and class them artifact so they also sync in
artifacts-only mode.

The test reads the heredocs out of the script rather than executing it:
gstack-artifacts-init.test.ts drives the real script through #!/bin/bash shims and
a colon-separated PATH, so it cannot run on Windows -- the platform where the
companion slug bug bit.

* fix(windows): resolve the project slug natively when gstack-slug cannot spawn

bin/gstack-slug is a `#!/usr/bin/env bash` script with no file extension. Windows
honors neither the shebang nor PATHEXT for an explicit path, so spawnSync fails
ENOENT and resolveSlug returned its literal fallback, "unknown".

Every decision on the machine was therefore filed under
~/.gstack/projects/unknown/ -- one bucket shared by every project -- while the
bash-side Context Recovery preamble resolved the real slug, found no
decisions.active.json there, and skipped through a bare `if [ -f ... ]` with no
else.

Nothing failed. Both decision bins (log and search) missed identically, so writes
and searches stayed consistent with each other, and the only component that
resolved correctly was silent by design. Measured on one machine: 62 decisions
accumulated over 10 days and 170 skill runs, surfaced zero times.

shell:true is not the fix here, unlike #1731 -- cmd.exe cannot run a bash script
either. Nor is re-spawning through `bash`: on Windows that frequently resolves to
WSL, whose $HOME and /mnt/c paths yield a different slug AND a different cache
directory, trading one split store for another.

Instead, port gstack-slug's own three steps (cache -> git remote -> basename),
keeping its alphabet and its MSYS-form cache key so both paths agree. The
fallback is win32-gated, so POSIX behaviour is byte-identical.

Tests exercise the fallback on every platform (only the gating is win32-specific),
so POSIX CI catches a regression that would otherwise surface only on a Windows
user's disk, plus a static gate pinning the platform check.

* fix(security): guard brain-sync arithmetic against injected .brain-last-pull; sanitize _GBRAIN_HOST

Re-derived from PR #2588 under the generated-file screening rule (resolver
hunks taken; SKILL.md files regenerated, not accepted). A poisoned
.brain-last-pull could reach bash arithmetic ($(( ))) — a code-execution
vector from a writable state file; the timestamp is now validated numeric
before use. _GBRAIN_HOST from ~/.claude.json is clamped to hostname-safe
characters before echo. Ship goldens refreshed to the regenerated output.

Co-authored-by: sneakygriff <89592870+sneakygriff@users.noreply.github.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(sync): run gstack-brain-sync through bash, not cmd.exe, on Windows

The brain-sync stage failed on EVERY Windows run with "is not
recognized as an internal or external command", so /sync-gbrain always
reported ERR brain-sync among otherwise green stages.

#1731 gave these spawns shell: NEEDS_SHELL_ON_WINDOWS. That is correct
for the gbrain.cmd shim and does nothing here: shell:true routes through
cmd.exe, which resolves .cmd/.bat via PATHEXT but has no concept of a
shebang, so an extension-less bash script is rejected outright. A .cmd
shim needs a shell; a shebang script needs an interpreter. The two cases
look identical and are not.

The failure was quiet rather than loud. artifacts_sync_mode defaults to
pushing curated artifacts to git, so a Windows user's learnings piled up
uncommitted in ~/.gstack indefinitely while the sync report showed one
red line out of four.

New bashScriptInvocation() resolves Git for Windows' bash explicitly and
passes the script as argv[0]. It prefers Git bash over a bare `bash` on
PATH because WindowsApps ships a bash.exe that is the WSL launcher, which
would read C:\... as a Linux path; GSTACK_BASH overrides for unusual
installs; forward slashes because bash treats backslashes as escapes; and
it returns null when no bash exists so the stage says so plainly instead
of surfacing an unactionable spawn error.

The #1731 tripwire asserted the shape that does not work, so it now
asserts the opposite (never a raw spawnSync(brainSyncPath, ...)) and six
unit tests cover the resolver.

Verified on Windows: the stage now reports "OK brain-sync curated
artifacts pushed (4.2s)" and the artifacts repo committed + pushed on its
own. Affected-test set unchanged at 14 pre-existing failures before and
after, with 6 new passing tests.

* fix(gbrain): quote cmd.exe arguments at a single gbrain invocation seam

Fixes #2471. With shell:true on Windows, node/bun join argv into one cmd.exe
string without quoting, so a repo path with a space — the default
C:\Users\First Last\ layout — split into two arguments and every gbrain call
carrying a path silently targeted the wrong location (worst: `sources add
--path`). All gbrain CLI invocations now build their (cmd, argv, shell)
triple through gbrainInvocation(), which quotes risky arguments for cmd.exe's
re-parse (embedded quotes doubled). The four direct spawn sites in
lib/gbrain-sources.ts route through the seam; the #1731 static invariant is
upgraded for seamed files (any direct "gbrain" opener is the violation) and
kept as-is for lib/gbrain-local-status.ts. POSIX behavior unchanged
(shell:false, passthrough argv).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(brain-sync): classify queue entries, rewrite surgically, re-push stranded commits

Fixes #2549 (P0 data loss). Every drain exit previously truncated the WHOLE
queue (six `: > "$QUEUE"` sites), which (a) destroyed privacy/mode-held
entries while misattributing them as "no allowlisted changes", (b) destroyed
entries enqueued concurrently during the drain, and (c) left push-failed
commits stranded locally with nothing ever re-pushing them until unrelated
new work arrived.

Now: compute_paths_to_stage classifies every entry (stageable / retained
privacy-held / dropped skipped-invalid-unmatched-missing); rewrite_queue
re-reads the LIVE queue at mv time and removes only this drain's processed
paths (retained + concurrent appends + unparseable lines survive; atomic
tmp+mv); an unpushed-commit detector at run start re-pushes stranded local
commits (receipted fail-closed; a receipt refusal skips the retry rather
than wedging the drain; guards missing origin/<branch>; runs inside the
existing lock). Status lines carry counts; full drop paths go to a 0600
sidecar (.brain-sync-drops.json) so filenames stay out of transcripts.
--drop-queue remains the one intentional truncation.

Matrix added: privacy retention, unmatched/missing counted drops + sidecar
mode, unparseable-line preservation, surgical same-drain retention, push-fail
commit retention + detector re-delivery on an EMPTY queue, receipt-refusal
skip. 35/35 in test/brain-sync.test.ts.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(gbrain): make --full do a full code walk, not a delta one

`runCodeImport()` walked with a bare `gbrain sync --strategy code --source X`.
The strategy is right, but that walk is incremental: it only revisits files
changed since the source's checkpoint. A file missed at the ORIGINAL import is
therefore never revisited and stays out of the index indefinitely.

The reindex-code pass below cannot rescue it. It re-chunks pages that already
exist and never walks the filesystem — the same property the comment directly
above already relies on when explaining why the walk has to run first. That fix
landed one flag short: it made a fresh source get pages at all, but left
`--full` unable to discover a file the first walk skipped.

Net effect: `/sync-gbrain --full` did not perform a full walk, and re-running it
never re-detected the gap.

The failure is silent, which is what makes it expensive. Nothing errors, nothing
warns, and the verdict block still reports OK while `gbrain search` and
`gbrain code-def` answer out of a partial index. It reads as "gbrain is weak at
code questions" rather than "the index is incomplete".

Measured on two local code sources before and after this change, counting
exported functions resolvable via `gbrain code-def`: one went from 61/201 (30%)
to 180/201 (89%), importing 79 files that had no page at all; the other had
whole source files missing entirely and reached 93%. Both had been serving
search from a partial index for weeks.

Scoped to `--full` so incremental runs stay fast. `--yes` because this spawns
non-interactively and a full walk otherwise prompts to confirm import cost.

Anyone can check their own brain without applying this:

    gbrain sync --source <id> --strategy code --full --dry-run

and compare "N file(s) would be imported" against that source's page_count.
Worth knowing while doing so: the default strategy is markdown and --strategy
is per-invocation, never persisted on the source, so dropping the flag reports
strategy=markdown and a handful of files.

* fix(brain-cache): honest 'missing' instead of fabricated-empty digests on gbrain failure

A gbrain-unreachable failure in fetchRecentDecisions and fetchSalience
used to be converted into a cached 'successful' empty digest ("_No prior
skill runs recorded._" / "_No salient pages in last 14d._") that
refreshEntity stamped with last_refresh. The false negative then
survived every subsequent TTL cycle, indistinguishable from a genuine
zero-rows result. Now failure returns null, so cmdGet's existing
missing/stale-fallback machinery reports the true state — matching what
fetchGoals and fetchSimplePage already do on failure.

Also adds an Array.isArray guard in fetchRecentDecisions so a malformed
payload ({pages: {}} etc.) classifies as failure instead of crashing
refreshEntity mid-refresh; a genuinely empty pages array still renders
the honest empty digest.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(test): give the schema-mismatch rebuild test a load-proof budget

The rebuild path refreshes every per-project entity against the real gbrain
CLI; with an unreachable brain each spawn runs to its own timeout, and under
machine load the stack exceeds bun's 5s default (observed 5.2-5.4s,
identically on pre-#2587 binaries — a load flake, not a regression). 30s
budget matches the sibling brain-sync suite's convention.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(memory-ingest): parse the current Codex response_item rollout shape

Fixes #2105. Codex rollout JSONL moved to
{ type: 'response_item', payload: { type: 'message', role, content: [...] } };
the parser's legacy payload.message branch never fired on it, so every Codex
session imported as an empty shell (message_count: 0 — 243/243 sessions on
the reporting machine). Both shapes now parse; non-message response_items
(reasoning etc.) are ignored. parseTranscriptJsonl exported for direct unit
tests (CLI path unchanged — import.meta.main guard).

Note: #2104's staging-in-gitignored-tree half is already defended on main
(--include-gitignored + GIT_CEILING_DIRECTORIES, #2144, plus the #2486
reconcile guard) — verified, no change needed; it moves to the close-only
roster.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(test): refresh codex/factory ship goldens from post-#2588 regeneration

The #2588 absorb refreshed all three ship goldens, but `bun run
gen:skill-docs` regenerates the CLAUDE host only — the codex/factory goldens
were copied from artifacts rendered before the resolver change and failed
against a fresh external-host regen in the serial test phase. Re-rendered
with --host codex / --host factory and re-copied.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(make-pdf): boolean flags no longer swallow the next positional argument

Fixes #2514. The parser treated any non-flag token after a flag as its value,
so `$P generate --toc essay.md` ate essay.md as --toc's value and failed with
"missing input" — the skill's own documented usage only worked when two
boolean flags happened to be adjacent. BOOLEAN_FLAGS enumerates the no-value
flags; value flags (--watermark, --to, --title, ...) are unchanged. main()
now runs behind import.meta.main so tests import the parser directly.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(repo-mode): probe GNU stat before BSD so Git Bash stops crashing

Fixes #2195. On GNU coreutils `stat -f` SUCCEEDS (filesystem status, not a
format string), so the BSD-first fallback chain never fell over — it fed
multi-word filesystem output into the cache-age arithmetic and crashed under
set -u on Windows Git Bash. GNU `stat -c` fails cleanly on BSD/macOS, making
GNU-first deterministic on both; the mtime is numeric-validated before
arithmetic as a last line of defense.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(retro): point the prior-retros context query at files /retro actually writes

Fixes #2552's live half. The gbrain context-query glob targeted
~/.gstack/projects/<slug>/retros/*.md — a directory and extension nothing
writes — so prior-retro recall was dead on every brain-aware run. /retro
saves to .context/retros/*.json (repo-local); the query now reads that. The
issue's second defect (quoted-tilde orphan sweep) is already fixed on main —
the preamble sweeps with "$HOME/..." — verified, no change needed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(sync-gbrain): remove the capability-check page file left in the user's repo

Fixes #2503. On worktree-pinned brains `gbrain put` materializes the checked
page as _capability_check_<pid>.md in the current directory (the user's
repo), and `gbrain delete` removes the page but not the file — every
/sync-gbrain run left a stray file in the repo root. The check now deletes
the materialized file explicitly after the page delete.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(browse): warn that hover scrolls and the daemon tab persists across sessions

Fixes #2445. Both behaviors are by design but produced confidently wrong
verification output: hovering a below-the-fold element scrolls the page
before a "rest state" screenshot (exit 0, wrong section), and the daemon's
tab survives sessions so a bare `reload` can act on whatever earlier work
left open. The screenshot-evidence section now names both traps with the
concrete guards (assert window.scrollY; always goto before verifying).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(gitattributes): pin *.txt to LF

.gitattributes pins LF for every other text format in the repo (*.md,
*.tmpl, *.yml, *.yaml, *.json, *.toml, *.sh, *.ts, extensionless scripts,
even the hash-pinned diagram-render dist files). *.txt is the one text
format left unpinned.

On Windows with core.autocrlf=true, that means the two tracked .txt files
are rewritten to CRLF at checkout and then read as permanently modified:

  gstack/llms.txt                                   +174 bytes
  make-pdf/test/fixtures/combined-gate.expected.txt  +20 bytes

git status is never clean, and /gstack-upgrade's 'git stash' step saves a
phantom stash on every upgrade — one that pops back to an empty diff.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(setup): install every skill runtime asset for the Claude host

On a fresh Claude install, link_claude_skill_dirs installed only SKILL.md
(+ sections/) per skill. Every skill that reads a sibling runtime file at
.claude/skills/<name>/<file> was broken out of the box: /review stopped at
'Read .claude/skills/review/checklist.md' (file never installed), and qa's
templates/references, plan-devex-review's dx-hall-of-fame.md,
gstack-upgrade's migrations/, and careful/freeze's bin/ hooks were all
silently missing. Codex/Factory/OpenCode/Kiro installers already copied
these; the primary host never did.

Fix: a shared _link_skill_runtime_assets helper installs EVERYTHING a skill
ships next to its SKILL.md, with an explicit exclusion list (F7):
node_modules, dist, test, *.tmpl, hidden files. Exclusion-list polarity
means a newly added asset installs by default instead of being silently
dropped. Assets refresh unconditionally on re-run (rm + relink/copy), so
Windows real-dir copies pick up changes after git pull.

New free test runs the real installer functions against the live repo into
a temp skills dir with a TWO-CLASS referenced-paths assertion (ENG-OV7):
alias-relative refs (.claude/skills/<name>/<path>) must exist under the
install; repo-anchored refs (~/.claude/skills/gstack/<path>) must exist in
the tree modulo an explicit built-artifact allowlist (browse/design/
make-pdf dist + the compiled gstack-global-discover). Known-broken class-2
refs (#2250 bare bin names) are ratcheted: the test fails if they quietly
start existing without the entry being removed.

Fixes #2317
Fixes #2454

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(setup): alias skills install as rewritten copies, never symlinks

The two back-compat alias dirs — _gstack-command (root router) and
connect-chrome (→ open-gstack-browser) — symlinked the canonical SKILL.md
verbatim, so each alias re-served the canonical frontmatter name:. Claude
Code keys skills on that name and requires global uniqueness: the
connect-chrome duplicate silently shadowed /open-gstack-browser (whichever
readdir returned first won), and the _gstack-command duplicate could drop
the ENTIRE personal-skills set — every /gstack command vanished until the
user hand-deleted the alias dirs, and the next setup re-broke it.

Fix: copy-then-rewrite. A shared _install_alias_skill_md helper reads the
SOURCE SKILL.md and writes a fresh copy with name: rewritten to the alias
dir's own name (_gstack-command / connect-chrome / gstack-connect-chrome).
sed never edits in place: on Unix the old install was a symlink into the
repo, and an in-place rewrite through it would have corrupted the generated
source (eng review E2). bin/gstack-relink gets the same treatment for its
root-alias helper, and its discovery loop now skips symlinked source dirs
so the connect-chrome repo symlink can't re-mint the duplicate.

Tests assert: installed aliases are NOT symlinks, carry their own unique
names, all installed frontmatter names are globally unique, re-runs refresh
cleanly, legacy symlinked aliases are replaced not written through, and the
source files stay byte-intact.

Fixes #2511
Fixes #2201

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(setup): Windows re-runs refresh installed skills for codex/factory/opencode hosts

On Windows (Git Bash / MSYS2, no Developer Mode), _link_or_copy installs
REAL directory copies. The install guards in link_codex_skill_dirs,
link_factory_skill_dirs, link_opencode_skill_dirs, and create_agents_sidecar
only ran the copy when the target was a symlink or missing — true on the
first install, never again. Every subsequent ./setup after a git pull
reported 'gstack ready (codex).' and exited 0 while silently refreshing
nothing: users ran stale SKILL.md forever. (link_claude_skill_dirs already
handled this; the other hosts never got the treatment.)

Fix: all five guard sites bypass the symlink-or-missing check when
IS_WINDOWS=1 — _link_or_copy rm -rf's the destination first, so the real-dir
copy refreshes in place. Unix behavior is unchanged (symlinks still pass the
guard via -L and serve updates without re-copying).

The new bash-fixture test drives the REAL extracted functions through the
install → upstream change → re-run cycle under IS_WINDOWS=1 (v1 must become
v2), pins the sidecar-skip behavior, checks the Unix path stayed a symlink,
and statically asserts the bypass at all five sites so factory/opencode
can't regress. Registered in the Windows-safe curated list
(KNOWN_WINDOWS_SAFE) so it actually runs on the windows-latest CI lane —
the 'bin/' pattern hit is a fixture path segment, not a shebang spawn.

Fixes #2444

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(uninstall): remove real-directory skill installs, gated on provenance

On Windows, setup installs skills as REAL directory copies (cp -R via
_link_or_copy). gstack-uninstall's per-skill loop filtered on [ -L ], so
every copy was skipped: --force exited 0 and printed 'gstack uninstalled.'
while leaving ~52 gstack-* directories plus _gstack-command/ behind in
~/.claude/skills. The same filter also missed the standard Unix shape (real
dir + symlinked SKILL.md), which was left as a dangling-symlink husk.

Fix: the loop now handles all three install shapes. Symlink entries keep
the existing readlink check. Real dirs with a SYMLINKED SKILL.md are removed
when the link points into gstack (same semantics as setup's cleanup
helpers). Real dirs with a REAL-FILE SKILL.md — the Windows copy shape — are
removed ONLY when both provenance gates pass (F8): (a) the directory name is
in gstack's skill inventory (source dir names, frontmatter names, gstack-
prefixed variants, and the alias dirs), and (b) the SKILL.md carries the
existing generated banner '<!-- AUTO-GENERATED from' (ENG-OV10: every
pre-v1.67 copy already carries it; a NEW marker would refuse to delete
legitimate old installs, recreating the bug). Anything failing a gate is
listed to stderr and never deleted — a user's own skill that happens to
share a name with a gstack skill survives.

Tests: a fake-tree fixture covers removed/kept/listed for every shape
(including the F8 name-collision row), and a census test asserts every
installable skill's generated SKILL.md carries the banner so the gate can't
strand a bannerless skill. Registered in the Windows-safe curated list —
the copy shape is exactly what windows-latest exercises.

Fixes #2563

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(setup): wire --host cursor through the full install path

'./setup --host cursor' was accepted by the flag parser and then did
nothing: no INSTALL_CURSOR branch existed, so the script built binaries,
printed no 'ready' line, and installed zero skills — Cursor users had no
way to install gstack at all.

Full install slice, re-derived from PR #2547 by @szsunyuan onto the
current installers: generate .cursor/ skill docs (host config already
existed), create a minimal ~/.cursor/skills/gstack runtime root (root
SKILL.md + bin/lib/browse assets + review checklist pair + ETHOS.md +
supabase config — bin and lib travel together because bin scripts import
../lib), link the generated gstack-* skills, and plant the repo-local
.cursor/skills/gstack sidecar WITHOUT ever wiping the generated SKILL.md
files it shares a directory with (link-before-sidecar ordering keeps the
generation fallback alive). Auto mode detects Cursor via the cursor
binary or the ~/.cursor footprint. gstack-uninstall removes
~/.cursor/skills/gstack* and per-project .cursor/skills/gstack* — and
never rmdir's .cursor itself, where Cursor stores user rules.

Re-derivation deltas from the PR: the link guards carry the #2444
IS_WINDOWS bypass (re-runs refresh real-dir copies), lib/ and
supabase/config.sh ride along like every other runtime root, and the
hosts/cursor.ts sidecar field is omitted (HostConfig no longer carries
one — sidecar behavior lives in setup).

Fixes #1358

Co-authored-by: Yuan Sun <forrest.sun527@gmail.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(settings): include command in add-event dedup key (#2382)

Fixes #2382.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix(setup): render the gbrain :user variant to an out-dir — global installs stay git-clean

On a global-git install with gbrain, ./setup and 'gstack-config
gbrain-refresh' ran gen:skill-docs:user IN PLACE inside the install
checkout, rewriting ~16 TRACKED SKILL.md files. The checkout stayed
permanently dirty, every /gstack-upgrade 'git stash' saved a redundant
snapshot of generated content, and the growing stash list invited a 'git
stash pop' that would lay stale instruction markdown from an older gstack
over the current version — a quiet wrong-rules failure mode.

Fix, wired through machinery that already existed (gen-skill-docs
--out-dir + the symlink install layer): brain-aware SKILL.md now renders
into the untracked ~/.gstack/render/claude, and both Claude installers
serve the render when present — setup's link_claude_skill_dirs prefers
$GSTACK_HOME/render/claude/<skill>/SKILL.md, and bin/gstack-relink does
the same so a later config change can't silently flip skills back to the
blockless canonical source. setup wipes and rebuilds the render each run,
repoints installed skills after a successful render, and removes a stale
render (re-linking canonical) when gbrain is gone. gbrain-refresh renders
to the out-dir and repoints via relink; its 'this dirties the install's
git tree' caveat is retired because it no longer does.

A one-time upgrade migration (gstack-upgrade/migrations/v1.67.0.0.sh, F12)
restores the legacy dirt: unstaged modifications to SKILL.md / sections/
*.md files in the install checkout are git-checkout'd back to canonical;
anything outside that footprint (user edits, untracked files, staged work)
is left alone and reported. Idempotent, non-fatal, symlinked installs
skipped.

Tests: render-preference behavior for both installers, static pins that
every executable :user invocation carries --out-dir and the caveat text is
gone, migration fixture (restore/leave/idempotent/no-op matrix), and the
existing out-dir render test now asserts 'git status --porcelain' gains
zero new entries across a full :user render.

Fixes #2569

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(redact): close the remaining #1946 fail-opens — detection coverage + one-time consent

Two of #1946's reported gaps were still open after the v1.64 fail-closed
work (the git-error and oversized-diff paths in bin/gstack-redact-prepush
are already strict, chunked, and pinned by tests):

1. Detection fail-open: env.kv required an UPPERCASE name with an '='
   assignment, so 'api_key=…', 'apiKey: "…"', and 'password: …' — the
   most common real config shapes — produced NO finding at all. The pattern
   is now case-insensitive, accepts ':' (YAML/JSON) as well as '='
   assignment, and handles quoted JSON keys. It stays MEDIUM and
   entropy-gated per the calibration rule (a generic net that cries wolf
   gets bypassed), with pinned cases for each closed shape plus the
   placeholder/entropy negatives.

2. Install fail-open: nothing ever offered the guard, so a plain 'git
   push' scanned nothing and users believing themselves protected weren't.
   setup now asks ONCE for consent on a real interactive terminal
   (maintainer decision 6): an explicit answer is recorded to the existing
   redact_prepush_hook key and never re-asked; a timeout or non-interactive
   run changes nothing and keeps the hint-only posture. Default stays
   FALSE, and setup still never installs the hook itself — /ship owns the
   per-repo install (the wrong-repo invariant is pinned by the existing
   'setup carries the hint only' test).

Tests: per-shape pattern cases, prompt gating statics (key-absence + TTY +
timed default-N read), timeout-persists-nothing, non-interactive stays
hint-only with no key write, and recorded-answer-is-silent behavior runs.

Contributes to #1946 (the pre-push guard's fail-closed scan paths landed
in earlier releases; this closes the coverage and consent gaps it names).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(hooks): Stop hook closes dangling timeline entries — fail-open

The preamble writes event:'started' to the project timeline at every skill
start, but the matching 'completed' write lives in prose at the END of the
skill workflow — unenforceable. An interrupted session, a context blowout,
or an agent that simply stops leaked started > completed forever, and the
leak was unrepairable after the fact (observed live in #2553).

New hosts/claude/hooks/timeline-stop-hook (+ .ts, question-log-hook shim
pattern): on Claude Code's Stop event it appends event:'completed' with
outcome 'unknown' and source 'stop-hook' for every 'started' entry in the
project timeline that has no matching completion. setup registers it via
gstack-settings-hook add-event (Stop was already an accepted event) under
its own source tag, idempotently; --no-team and gstack-uninstall remove it.

FAIL-OPEN contract (F5), pinned by tests: ALWAYS exits 0 — corrupt
timeline (bad lines skipped individually, valid ones still repaired),
missing timeline, garbage/empty stdin, bun missing from PATH (the shim
'|| true's), and an over-cap timeline (10MB skip) all repair nothing and
block nothing; errors land in ~/.gstack/hook-errors.log best-effort. The
write path is append-only with a ~2s internal budget, and a second Stop is
a no-op (already-closed entries never re-close). Correlation is
project-scoped by design — the preamble's session id is shell-local, so a
concurrent same-project session's entry may close early as a traceable
source:'stop-hook' row rather than a silent leak; the header documents the
trade-off.

Fixes #2553

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* ios-qa: guard DebugBridgeTouch.m on DEBUG, not just TARGET_OS_IOS

DebugBridgeTouch.m and its header both promise the code is DEBUG-only and
never shipped:

    "Uses these private UIKit selectors (DEBUG-only; never shipped to App Store)"
    "DEBUG-only — never link in Release."

Nothing enforced it. The only guard was `#if TARGET_OS_IOS`, so a Release build
for iOS compiled the entire implementation in, private API and all.

Measured on a real app (an iOS Release build, `nm -j` on the app binary):

    DebugBridge symbols            15
    IOHIDEventCreateDigitizer       2
    AXSSetAutomationEnabled         1 symbol, 2 strings
    IOKit.framework                 4 strings

including +[DebugBridgeTouch sendTapAtPoint:inWindow:] and
_OBJC_CLASS_$_DebugBridgeTouch. That is a Guideline 2.5.1 private-API exposure
in a shippable binary, and it fails Package.swift's own stated CI invariant:

    nm -j build/Release/<binary> | grep -q DebugBridge && exit 1

WHY THE EXISTING GUARD DOES NOT COVER THIS

Package.swift documents the protection as `.when(configuration: .debug)` on the
consuming target's dependency. That works for SwiftPM consumers. It cannot be
expressed by an app that integrates DebugBridge as a local package inside an
.xcodeproj: Xcode's Filters column under Frameworks, Libraries, and Embedded
Content offers platform conditions only — iOS, macOS, visionOS — never build
configuration. So for xcodeproj consumers the documented guard silently does
nothing, which is precisely the case that was measured.

The Swift targets were already safe: all four .swift files are `#if DEBUG`
guarded and Package.swift defines DEBUG for them via swiftSettings. Only the
Objective-C target, the one that actually links private API, was unguarded.

THE FIX

1. DebugBridgeTouch.m.template now branches `#if !defined(DEBUG)` first and
   emits nothing at all in Release, falling through to the existing iOS and
   non-iOS branches only in Debug.

2. Package.swift.template declares DEBUG explicitly for the ObjC target:

       cSettings: [.define("DEBUG", .when(configuration: .debug))]

   The two Swift targets already did this. Relying on SwiftPM's implicit DEBUG
   for C-family targets is not worth betting a private-API exposure on.

VERIFIED, by compiling the generated file for iOS both ways:

    xcrun -sdk iphoneos clang -c DebugBridgeTouch.m -arch arm64 ...

    Release (no -DDEBUG)   0 DebugBridge symbols, 0 private-API symbols,   448 B
    Debug   (-DDEBUG=1)    7 DebugBridge symbols, 6 private-API symbols, 13104 B

The harness is unchanged in Debug. Release now emits an empty translation unit.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(ios-qa): bridges search front-most presented content first

A presented sheet sits AFTER the screen it covers in window.subviews, so
the elements walk emitted the covered screen first — a client taking the
first match for a label activated a control the user cannot reach, and
the agent saw a success (measured on a real app: the sheet's 'Create'
button ranked 210th behind 35+ covered-screen entries). Menus, alerts and
action sheets were worse: each gets its OWN UIWindow, so keying off
isKeyWindow missed them entirely — absent from /elements, dropped from
/screenshot, untappable via /tap.

Re-derived from PR #2397 by @IDSTUK onto the current bridge templates
(the SwiftUI tap-reliability rework had moved underneath the PR):
ScreenshotBridgeImpl gains orderedWindows(in:) (visible windows front-most
first by windowLevel then insertion order, PassThroughWindow overlays
still filtered), frontmostWindow(), and searchRoots() (per window, the
top-most presented view controller's view before the window itself).
/elements walks those roots in order through the existing shared
visited-set + budget, so overlapping roots emit each view once at its
front-most position; /tap targets frontmostWindow() for both the
accessibility-activation and synthesized-touch paths; /type and /swipe
search the roots in order; /screenshot composites every window
back-to-front at the existing 1x scale. The two now-dead private
activeScene/activeKeyWindow copies in ElementsBridgeImpl and
MutationBridgeImpl are removed.

Fixture mirror synced byte-for-byte; verified with a full
'xcodebuild build -scheme FixtureApp-Package -destination
generic/platform=iOS Simulator' (BUILD SUCCEEDED, DEBUG guard from the
previous commit included).

Co-authored-by: IDST UK <IDSTUK@users.noreply.github.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(setup-gbrain): invoke gstack-memory-ingest/gstack-gbrain-sync via bun run + .ts

/setup-gbrain's transcript-ingest steps told the agent to run
bin/gstack-memory-ingest and bin/gstack-gbrain-sync by BARE name. Neither
exists — only the .ts files ship (mode 644, no bin alias) — so the agent
dutifully reported 'script missing at install root' and the ingest/full-
sync steps dead-ended on every host (hit live under Codex; the Claude
render carries the same text).

All four template sites (probe, silent-bulk, post-answer full sync, the
preamble-hook incremental mention) and the four memory.md reference-doc
sites now use the repo's established form: 'bun run <path>/gstack-memory-
ingest.ts …' / 'bun run <path>/gstack-gbrain-sync.ts …' — matching what
sync-gbrain already does. Generated SKILL.md regenerated from the template
in the same commit.

Re-derived from PR #2409 by @SomSamantray per the wave's screening rule
(the PR edited the generated SKILL.md directly; the generated file must
come from gen:skill-docs). The contributor's structural test rides along
as-is: bare-invocation regexes with negative .ts lookahead and backslash-
continuation coverage pin every site, so the drift can't return. The
referenced-paths ratchet in test/setup-claude-skill-assets.test.ts drops
its two #2250 known-broken entries — the class-2 assertion now guards
these paths again.

Verified against #2250's site list (template lines 690/735/784-area, all
covered) plus a fresh grep: zero bare invocations remain in the template
or memory.md; the one prose mention ('gstack-memory-ingest now persists…')
is not an invocation and stays.

Fixes #2250
Fixes #2393

Co-authored-by: SomSamantray <SomSamantray@users.noreply.github.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(test): update four main-side assertions to the T3 installer contracts

Integration drift from the T3 lane: three static assertions pinned the OLD
implementation shapes that T3 legitimately replaced — the gbrain-refresh
branch no longer self-documents a reset --hard cycle (#2569 renders to an
untracked out-dir instead; the test now pins THAT), setup's regen block
renamed to the render form (re-anchored, same exit-code-propagation
invariant), and sections/ linking generalized into _link_skill_runtime_assets
(the _link_or_copy routing assertion moved into the helper). Fourth: the
uninstall neutral-target test asserted against os.tmpdir(), which reads
$TMPDIR at call time — a shard neighbor can leave it gstack-containing,
making the "neutral" symlink target match the provenance substring; the test
now falls back to a fixed neutral root and asserts neutrality explicitly.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: whitelist engine-locked at all three gbrain-usable gates (#2456)

#2194 taught the classifier to report a PGLite lock held by a live
\`gbrain serve\` as engine-locked instead of broken-config, but none of the
three "is gbrain usable?" gates accepted the new status — so the symptom
moved from a wrong error to a quieter wrong suppression: gbrain-refresh
stripped GBRAIN_CONTEXT_LOAD / GBRAIN_SAVE_RESULTS blocks out of every
generated SKILL.md after every upgrade, on the RECOMMENDED /setup-gbrain
default (PGLite + local-stdio MCP spawns gbrain serve at session start).

engine-locked is the same class as timeout (#1964): the engine is
installed and healthy, a legitimate holder has the lock. All three gates
now agree:

- bin/gstack-gbrain-detect --is-ok exits 0 on engine-locked
- bin/gstack-config gbrain-refresh case arm renders instead of suppressing
- scripts/gen-skill-docs.ts --respect-detection treats it as detected

Test mirrors the existing timeout case in
test/gbrain-detection-override.test.ts (engine-locked renders brain
blocks; the sibling no-cli case still proves suppression works).

Applies the reporter's patch + test from the issue.

Fixes #2456

Co-authored-by: Mateus Moraes <mmoraes@users.noreply.github.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: detect bearer-token thin clients via host MCP registration (#2520)

The #2051 thin-client fix keys detection on the remote_mcp marker in
~/.gbrain/config.json — but that marker is only written by the OAuth path
(gbrain init --mcp-only). Bearer-token installs (gbrain connect <url>
--token, gbrain's own recommended default for local/personal use) never
touch config.json, so they fell through to the local probe, failed against
the dead-or-absent local engine, and landed on missing-config / broken-db /
broken-config / engine-locked — silently suppressing brain blocks for a
fully-working remote brain.

New evidence source: hasRemoteOnlyGbrainMcp() reads ~/.claude.json MCP
registrations (user scope AND project scope) with the same classification
rules as gstack-gbrain-detect's tier-3 fallback. File-read only — no
subprocess, no network (a classifier network probe is the #1964 pathology).
Wired at two sites in freshClassify:

- missing-config branch: a bearer thin client may never have run a local
  init; if the host's only gbrain registration is remote-HTTP, that
  registration IS the brain → thin-client.
- post-probe-failure demotion: broken-db / broken-config / engine-locked
  reclassify to thin-client when the only gbrain registration is remote.
  A local-stdio sibling registration blocks the demotion (federation
  guard: a user running a local engine plus a remote team brain keeps
  precise local statuses). "timeout" is excluded — already usable, and
  may be a genuinely healthy slow local engine.

7 new unit tests in test/gbrain-local-status.test.ts: user-scope, project-
scope, engine-locked/broken-db demotion, federation guard, no-registration
discriminator, end-to-end --is-ok gate (35 pass total in the file).

Root-cause analysis by @d-danielsun in #2520.

Fixes #2520

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: resolve GBRAIN_HOME with gbrain's parent-dir semantics (#2521)

gstack treated GBRAIN_HOME as the config directory; gbrain's configDir()
treats it as the PARENT and always appends `.gbrain` itself (the contract
is explicit in gbrain's source: GBRAIN_HOME=/tmp/x → /tmp/x/.gbrain/
config.json). With GBRAIN_HOME set, gstack classified engine status from
a file gbrain never reads — the probe's two halves (file checks vs the
spawned `gbrain sources list`) looked at DIFFERENT installs, so any
resulting status was arbitrary: missing-config/broken-config against
healthy installs, or a thin-client marker gstack saw that gbrain itself
reported as "No brain configured".

New shared resolver `gbrainConfigDir()` in lib/gbrain-exec.ts is the
single source of truth. All seven gstack sites route through the contract:

- lib/gbrain-local-status.ts gbrainConfigPath (the classifier's file half)
- bin/gstack-gbrain-detect GBRAIN_CONFIG + readRemoteMcpUrl
- lib/gbrain-exec.ts buildGbrainEnv (the probe's DATABASE_URL seed —
  fixing only the classifier would have left the split-brain in the
  spawn half, flagged by the reporter)
- lib/gbrain-guards.ts gbrainHome (clones-dir + autopilot-lock paths)
- lib/gstack-memory-helpers.ts gbrainConfigPath (engine-tier fallback)
- bin/gstack-gbrain-install pre-doctor config check (shell)

Unit tests cover GBRAIN_HOME set (config found at $GBRAIN_HOME/.gbrain),
the old flat layout explicitly NOT read (both classifier and
buildGbrainEnv), and unset (~/.gbrain unchanged). Existing fixtures that
encoded the deviant flat layout are updated to gbrain's contract.

Root-cause analysis by @d-danielsun in #2521.

Deviation from the 3-site plan spec: the same deviant resolution existed
in four more sites (buildGbrainEnv, gbrain-guards, memory-helpers,
gbrain-install); fixing only three would have left gstack disagreeing
with itself as well as with gbrain, so the whole class moved to the
shared resolver in one change.

Fixes #2521

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: read project-scoped MCP registrations in gbrain detection (#2499)

Claude Code registers MCP servers at two scopes in ~/.claude.json: user
scope (.mcpServers) and project scope (.projects["/abs/path"].mcpServers
— what `claude mcp add` WITHOUT --scope user writes). Every gbrain
detection site read only user scope, so a correctly configured
project-scoped brain was invisible: brain-aware blocks suppressed,
remote-mode artifacts sync never recognised, and detectEndpointHash fell
through to the 'local' literal — two different project-scoped brains
hashed identically, so switching between them never invalidated the
cache, the exact scenario the function's docstring says it exists to
catch. Nothing errored; the features just quietly were not there.

Two sites fixed:

- scripts/resolvers/preamble/generate-brain-sync-block.ts: the shared
  detection block (rendered into every tier-2+ SKILL.md) now resolves the
  gbrain entry ONCE into _GBRAIN_MCP_ENTRY — user scope first, then the
  nearest-ancestor project entry for $PWD that actually carries a gbrain
  server (longest matching key with a path-boundary check: /a/repo never
  matches /a/repo2; a nested project WITHOUT gbrain doesn't shadow its
  parent's registration). _GBRAIN_MCP_TYPE and _GBRAIN_HOST extract from
  the resolved entry, so claude.json is parsed once per skill start. All
  SKILL.md files regenerated in this commit; the ship golden fixtures and
  three carve-guard skeleton caps (plan-eng-review, plan-devex-review,
  office-hours; ~1.5KB rendered growth per skill) are refreshed with
  measured values.
- bin/gstack-brain-cache detectEndpointHash: same resolution order in TS
  (user scope, else nearest-ancestor project entry by cwd, both path
  separators for Windows keys).

Tests: rendered-output tests in test/gen-skill-docs.test.ts pin the
regenerated block (static markers + a FUNCTIONAL run of the exact
rendered lines against a fixture ~/.claude.json with only a
project-scoped registration, plus an outside-cwd discriminator);
detectEndpointHash unit tests in test/brain-cache-roundtrip.test.ts cover
project-scope resolve, path-boundary, nearest-ancestor distinct hashes,
and user-scope precedence.

Root-cause analysis by @samporter-31 in #2499.

Fixes #2499

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: /sync-gbrain respects an existing valid .gbrain-source pin (#2417)

/sync-gbrain always derived a new worktree-scoped source ID, even when
the repository already carried a valid .gbrain-source pin created through
the native GBrain source workflow — silently bypassing the selected
source boundary, registering a duplicate federated source, and routing
later dream/cycle checks to the wrong source.

Now a local pin is reused when it passes the fail-closed identity checks:
the ID is syntactically valid, the source is registered, and the
registered path realpath-resolves to the current checkout (so a stale or
copied dotfile can't redirect a sync into another repo's source). A
confirmed pin is treated as user-managed — synced and attached without
add/remove, legacy migration, or federation changes. Dry-run stays
spawn-free (reads only the local marker for previews). Missing, invalid,
stale, or unreadable pins fall back to the existing generated source ID.

Absorbs PR #2417 by @exGeni (applied via git am -3; 42 tests pass in
test/gstack-gbrain-sync.test.ts including the new pin-respecting
coverage: spawn-free dry-run, symlink-equivalent registered paths,
non-dry-run sync/attach with no add/remove, dream routing, unreadable
markers, config-backed env use).

Co-authored-by: Evgenii Lopatin <e75533@gmail.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: gstack-gbrain-install --dry-run no longer requires the network (#2540)

The GitHub reachability probe (curl --head, 10s max) was gated only on
--validate-only, so a --dry-run — which prints a plan and exits without
ever cloning — could fail with exit 3 "cannot reach https://github.com"
whenever the curl lost a race for sockets/DNS. Reproducible at ~15% by
running 60 dry-runs concurrently, and the cause of intermittent red in
the D5 detect-first tests, which call this exact path.

The probe now also skips under --dry-run: requiring the network for a
plan-print buys nothing and costs a real failure mode. Real installs
still fail fast when offline rather than hanging git clone.

Absorbs PR #2540 by @CarringtonCreative (applied via git am -3;
26 tests pass across test/gbrain-detect-install.test.ts +
test/egress-receipt-wiring.test.ts).

Fixes the offline/flake half of #2536.

Co-authored-by: Carrington Dennis <carrdenn3@gmail.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat: accept 3-digit semver + package.json version sources (#2501)

Two version-source shapes failed CLOSED in a way that silently disabled
/ship's queue-collision check:

1. A --version-path / .gstack/version-path target that is a package.json
   was read as raw text: the whitespace strip turned the JSON into
   '{"name":"frontend",... which parseVersion rejected, so every read —
   local, `git show`, and rival PRs' claims through the GitHub/GitLab
   Contents APIs — fell back to 0.0.0.0 and competing claims were dropped
   as "malformed".
2. parseVersion required exactly four components, so gstack-next-version
   exited 2 on EVERY invocation in a 3-digit repo. That CLI IS the
   queue-collision check; /ship then took its documented offline path of
   naive local arithmetic, two branches cut from the same base picked the
   same version, and git merged the duplicate without a conflict.

New lib/version-source.ts holds the shared semantics so both CLIs agree
by construction: parseVersion accepts 3- or 4-digit (3 pads the micro
slot for uniform comparison), versionWidth/fmtVersion keep a 3-digit repo
3-digit through bumping and formatting, micro coerces to patch on 3-digit
repos (with a warning in the output), and extractVersion reads a .json
version-path as JSON (.version) from any byte source. gstack-version-bump
treats a package.json version-path as that repo's single source of truth
(written in place, DRIFT_* states can't arise — no second file to drift
from). Detection is by shape, not new configuration.

Scope per the wave plan's version-tooling end-state spec (decision 11,
ENG-OV1): this is the READING capability + 3-digit acceptance ONLY.
gstack's own VERSION file stays the 4-digit source of truth; nothing here
flips authority to package.json. The PR's bundled fix for the
.gstack/version-path pin being ignored by classify's base read lands
separately (#2462) — these tests drive the JSON version-path through the
explicit --version-path flag.

Re-derived from PR #2501 by @YiftahR (73 tests pass across
test/gstack-version-bump.test.ts, test/gstack-next-version.test.ts,
test/ship-version-sync.test.ts).

Fixes #2501

Co-authored-by: YR <work.yiftah.rottem@gmail.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: write/repair sync npm lockfiles' version fields (#2567)

npm records the package version twice in its lockfiles — top-level
`version` and, in lockfileVersion >= 2, `packages[""].version` (the entry
describing the root package itself) — and `npm install` keeps both in
step. gstack-version-bump write/repair updated VERSION + package.json but
left the lockfile behind, so every /ship bump in an npm repo drifted one
field per release until someone ran npm, dirtying the tree on the next
`npm install` far from the cause.

write and repair now mirror the version into package-lock.json AND
npm-shrinkwrap.json (which shares the format and, when present, is what
npm actually honors) as a pure JSON edit — no npm spawn, no
dependency-tree churn, dependency entries untouched. Per the wave plan's
version-tooling end-state spec (decision 11): synced ONLY when the file
already exists, never created (gstack itself is bun-only). A failed
manifest/lockfile write keeps the existing exit-3 half-write semantics so
classify reports DRIFT_STALE_PKG on re-run instead of hiding the drift.

Tests: 5 new cases in test/gstack-version-bump.test.ts — both lockfile
version fields synced with deps untouched, repair heals a stale lockfile,
lockfileVersion 1 (no packages map) doesn't crash, npm-shrinkwrap.json
synced without inventing a package-lock.json, malformed lockfile exits 3
loudly (26 pass total in the file).

Re-derived from PR #2568 by @ortonom under decision 11.

Fixes #2567

Co-authored-by: ortonom <3261546+ortonom@users.noreply.github.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat: subdirectory manifests + npm-valid version mirror (#2531)

Two gaps in gstack-version-bump's manifest handling, resolved to the wave
plan's version-tooling end-state spec (decision 11):

1. Subdirectory manifests. A repo whose only Node package lives in web/,
   app/, or frontend/ has no ROOT package.json, so join(cwd,
   "package.json") reported pkgExists:false and every bump silently wrote
   VERSION alone — leaving the manifest to be bumped by hand, which is
   exactly the drift this tool exists to prevent, in the one layout where
   it silently did nothing. All three subcommands now resolve the
   manifest as --package-json-path → .gstack/package-json-path →
   ./package.json (mirroring resolveVersionPath).

2. npm-valid mirror. VERSION is 4-digit MAJOR.MINOR.PATCH.MICRO; npm's
   semver is 3-component and rejects a fourth, so mirroring the raw form
   breaks `npm ci` in any repo npm actually manages. The manifest and its
   lockfiles now carry the npm-valid 3-digit translation (1.67.0.0 →
   1.67.0) via npmVersion() in lib/version-source.ts. VERSION stays the
   4-digit source of truth. classify judges drift against the TRANSLATED
   form — a correctly-synced `0.1.25` no longer reads as eternal drift
   against `0.1.25.0` — and grandfathers the pre-v1.67 1:1 four-digit
   mirror as in-sync (flagging it DRIFT_UNEXPECTED would hard-stop /ship
   on every existing repo on upgrade day; the next write migrates the
   manifest to the translated form). Lockfiles are synced beside the
   resolved manifest — including beside a pinned JSON version-path — and
   only when they already exist.

classify output gains pkgPath and expectedPkgVersion for observability;
write/repair report packageJsonPath + packageJsonVersion. The /ship Step
12 prose (ship/SKILL.md.tmpl) documents the resolution chain and the
translation; SKILL.md files regenerated and ship golden fixtures
refreshed in this commit.

Tests: subdirectory pin + --package-json-path override, translated-form
classify (FRESH/ALREADY_BUMPED, no false drift), grandfathered 1:1
mirror, genuine divergence still drifts, repair to the npm-valid form
(33 pass in test/gstack-version-bump.test.ts; 526 pass across the five
affected files including goldens and parity).

Re-derived from PR #2531 by @CarringtonCreative on top of the 3-digit/
JSON version-source work, under decision 11 (which resolves the PR's
lockfile-gated translation in favor of an unconditional npm-valid
mirror).

Co-authored-by: Carrington Dennis <carrdenn3@gmail.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat: git-based version allocator when the PR queue is unreachable (#2545)

When the host query (gh/glab) failed, gstack-next-version returned
offline:true with an EMPTY claim set, and /ship's documented fallback was
local BUMP_LEVEL arithmetic. Local arithmetic cannot see a sibling's
claim, so the fallback allocated a version another open PR already held —
observed in a downstream repo where two merged PRs both read v0.1.57.0
(and an audit found four such duplicate pairs over three weeks).

New fetchGitClaimed() degrades the QUEUE VIEW without degrading the
ALLOCATION: git already knows what the API was asked for. It reads every
remote-tracking branch's pinned version file (through extractVersion, so
JSON version-paths resolve on remote refs too and each branch's own digit
width is preserved) plus the versions already shipped in the base's last
400 commit subjects (3- or 4-digit; the cap announces itself in warnings
when it truncates). The fallback runs only when the host told us nothing
— the online path is untouched — and the output gains a load-bearing
`fallback: "git" | null` field that /ship can branch on, plus explicit
warnings for both the recovered-from-git and the nothing-found cases.

Tests: end-to-end stub-gh offline contract (fallback:'git' + a valid
version + the warning), sibling-claim discovery from remote-tracking
refs, the pick advancing past the sibling's claim, shipped-subject
scanning, JSON version-path claims on remote refs, and non-repo
degradation to a warning (45 pass in test/gstack-next-version.test.ts).

Re-derived from PR #2545 by @CarringtonCreative under the wave plan's
version-tooling end-state spec; the PR's own VERSION/CHANGELOG stamping
is stripped (release stamping happens at /ship time, not per commit).

Co-authored-by: Carrington Dennis <carrdenn3@gmail.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: version-bump honors the .gstack/version-path pin in versionRel (#2462)

cmdClassify's current-version read already resolved the
.gstack/version-path pin, but versionRel — the repo-relative path fed to
`git show origin/<base>:<path>` — was derived from the CLI flag alone
(`argVal(args, "--version-path") ?? "VERSION"`). In a pinned repo with no
explicit flag, base and current therefore read DIFFERENT files: current
from the pinned file, base from the root VERSION. On a repo with no root
VERSION, the base always read 0.0.0.0 — and the pinned-JSON handling
never engaged, so a pinned package.json was read as raw text
(currentVersion 0.0.0.0) and `write` would have overwritten the manifest
with a bare version string.

New resolveVersionRel() resolves the pin's REPO-RELATIVE form once
(flag → .gstack/version-path first line → "VERSION"); classify, write,
and repair all derive both the relative and absolute paths from it, so
base and current reads can no longer diverge. The old resolveVersionPath
(which returned an absolute path `git show` cannot use) is folded in.

Unit tests (the ENG-OV6 spec case plus write/repair coverage): pin set +
no flag → classify reads base AND current from the SAME pinned file
(plain-text sub/VERSION and pinned frontend/package.json, both against a
real git base with NO root VERSION anywhere), write updates the pinned
manifest in place without inventing a root VERSION, repair treats the
pinned JSON as single-source, and the explicit flag still overrides the
pin (38 pass in test/gstack-version-bump.test.ts).

Re-spec'd per ENG-OV6 from the report in #2462 (the originally-filed
classify-read hypothesis was already handled; the live bug was the :138
versionRel derivation). Same fix shape independently identified in
PR #2501 by @YiftahR.

Fixes #2462

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: diff-scope glob coverage, honest exit contract, dirty-tree visibility (#2526, #2455, #2299)

Three silent-skip classes in bin/gstack-diff-scope, each of which quietly
disabled scope-gated reviewers in /ship and /review:

1. Pattern gaps (#2526, #2455). `*/api/*` required a path segment BEFORE
   api/, so a root-level api/ layout (Vercel serverless, Next.js pages/api
   at root) never set SCOPE_API — 63 serverless functions in the
   reporter's payments repo, none ever classified, the API-contract
   specialist silently skipped on every payment PR (it found a CRITICAL
   when run by hand). Same for root-level migrations/. And the Rails
   data_migrate gem's db/data/ data migrations — arbitrary Ruby run
   unattended against production data — fell through to plain BACKEND, so
   the [NEVER_GATE] data-migration specialist never got the chance to
   run. Added: api/*, migrations/*, db/data/*, data_migrations/*.

2. All-false was indistinguishable from "could not look" (#2526). New
   contract: empty change set → all false exit 0; >=1 match → flags
   exit 0; changed files with ZERO matches → SCOPE_ERROR=unmatched + the
   unmatched paths as comment lines + exit 2 (a new top-level layout now
   trips loudly instead of invisibly disabling reviewers); unresolvable
   base ref (shallow CI checkout) → SCOPE_ERROR=no_base + exit 2 instead
   of a green that means "we could not look". Every output line stays a
   shell-safe assignment or comment for sourcing consumers, which
   tolerate the nonzero exit today (source ... || true / eval).

3. Uncommitted work was invisible (#2299). /ship detects scope in Step 9,
   BEFORE it commits in Step 15, so the common start-work-then-ship flow
   ran the classifier against an empty diff and skipped every reviewer.
   The change set is now the UNION of committed diff + working tree +
   untracked files. Also from #2299: the single first-match-wins case
   made the nine flags mutually exclusive (Button.test.jsx set FRONTEND
   but not TESTS; util.test.ts the opposite) — each category now gets its
   own case, with BACKEND deliberately still excluding frontend
   component/view files. And file listing is NUL-safe (git diff -z), so
   non-ASCII paths no longer defeat extension globs via octal quoting.

Deliberate behavior change (flagged in #2299): with independent flags, a
backend test file sets BACKEND and TESTS, which can trip the security
specialist's SCOPE_BACKEND gate on test-only PRs — errs toward more
review, not less.

Table-driven tests cover every glob class (root api/, nested api/,
controllers, openapi, root/nested/prisma/db-migrate/db-data migrations,
dual-category test files, auth, prompts, docs, plain classes), the
four-state exit contract, dirty-tree + untracked visibility, and the
non-ASCII path case (39 pass in test/diff-scope.test.ts).

Fixes shaped by the reporters' patches: @grant-ship-it (#2526),…
@garrytan

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Thank you — this was absorbed on main (credited in the v1.6x CHANGELOG entries; roster in PR #2604). Closing.

@garrytan garrytan closed this Aug 17, 2026
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