Commit Graph
2 Commits
Author SHA1 Message Date
Garry TanandClaude Fable 5.1 c241216637 v1.80.0.0 fix: setup survives a failed Chromium install, hooks share one state root, gstack never clobbers a skill it did not create (#2802)
* fix(freeze): hook reads the same state root /freeze writes — fails closed under GSTACK_HOME (#1459, #1509)

check-freeze.sh resolved its state dir as ${CLAUDE_PLUGIN_DATA:-$HOME/.gstack}
while every writer (/freeze, /guard, /unfreeze, /investigate) resolves through
bin/gstack-paths, GSTACK_HOME first. With GSTACK_HOME set, /freeze wrote
freeze-dir.txt under GSTACK_HOME, the hook read $HOME/.gstack, found no file,
and allowed everything — a deny-tier boundary failing open.

One resolver now: gstack_hook_state_root() in careful/bin/hook-extract.sh
(already sourced by both check-freeze.sh and check-careful.sh) implements the
exact gstack-paths chain, including the CLAUDE_PLUGIN_ROOT guard that keeps a
CLAUDE_PLUGIN_DATA leaked from another plugin from redirecting our state.
check-freeze.sh and gstack_hook_log_fire both call it; nothing spawns
gstack-paths from a hook.

Tests: the GSTACK_HOME deny regression, GSTACK_HOME-over-CLAUDE_PLUGIN_DATA
precedence, plugin-root guard both ways, and a byte-parity check against
bin/gstack-paths across six env combinations. Existing freeze tests now pass
CLAUDE_PLUGIN_ROOT like a real plugin install would.

Idea from PR #1509 (@NikhileshNanduri); implemented natively against the shared
resolver rather than a second fallback chain.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(relink): never delete or link over a skill gstack does not own (#2119)

gstack-relink runs on every ./setup. Its cleanup did `rm -rf` on any same-name
entry whose SKILL.md was a symlink, with no readlink check, and its link step
did `mkdir -p` then `ln -snf` onto any existing SKILL.md — on Linux that
replaces a user's real file with a symlink into gstack (macOS refused by
accident). setup's Windows mode-flip cleanup deleted any real dir whose name
matched a gstack skill. A personal `qa` skill, or a fork installed under
another path, was destroyed by the installer of a tool it never asked for.

Ownership is now proven, never assumed. An entry is ours when it is a symlink
resolving into INSTALL_DIR or RENDER_DIR, a real dir whose SKILL.md is such a
symlink, or a real dir carrying the .gstack-owned marker setup now writes for
Windows copy installs (legacy copies count when byte-identical to the source
or carrying gen-skill-docs' AUTO-GENERATED header). Anything else — including
an entry whose readlink fails — is foreign: left untouched, reported on
stderr, and listed in relink's summary line. The same rule replaces setup's
Windows name-match deletion; setup:1040 and gstack-uninstall:204 already
gated on readlink, so this closes the last unguarded deleter of the class.

Tests: foreign real dir in flat mode, foreign flat entry on a prefix flip,
foreign directory symlink, RENDER_DIR-targeted entry (ours), marker-carrying
copy (ours), marker-less copy (foreign); the Windows cleanup test now proves
provenance three ways and keeps the user's own same-name skill.

Idea and two regression cases from PR #2119 (@smblight); implemented on the
destination entry, not only the symlink target.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(setup): Chromium bootstrap is best-effort and bounded — skills always register (#1900, #1901, #1902, #913, #2233)

setup runs under `set -e`, and the Chromium bootstrap in section 2 sat ahead
of skill registration in section 4 with a bare `bunx playwright install
chromium`, an unbounded download, and an explicit `exit 1` after the
post-install launch probe. On an offline, proxied, or AppArmor-restricted box
the user ended with ZERO skills registered and a re-run that died at the same
line; a wedged download hung setup indefinitely.

Every browser failure now records a reason code in _PW_FAIL_REASON and setup
continues: skipped (GSTACK_SKIP_PLAYWRIGHT=1, #913), chromium-install,
chromium-install-timeout (the download is bounded by the existing
_wait_with_deadline helper, default 600s, env GSTACK_PLAYWRIGHT_INSTALL_TIMEOUT,
process tree killed via _kill_tree), chromium-install-locked (another setup
holds the lock: this one registers skills and re-probes next time instead of
exiting), windows-no-node, windows-node-modules, post-install-launch (with the
GSTACK_CHROMIUM_NO_SANDBOX=1 hint for Ubuntu 24.04's userns policy, #2157).
The daemon font refresh is skipped when Chromium is unavailable. The final
summary names the skills that need the browser (/qa, /qa-only,
/design-review, /browse, make-pdf, /pair-agent) and the fix for the recorded
reason, and logs the reason code (never a path) through gstack-telemetry-log
when telemetry is on.

Tests: static invariants over the anchor-sliced block (no exit, every reason
code, deadline helper, trap chaining, guarded refresh, summary contents) plus
an integration harness that executes the real block with a stubbed probe and
installer: install failure, hang killed at the deadline with the tree kill
recorded, non-numeric knob fallback, live lock (continues, installer not run,
lock preserved), stale lock reclaimed, post-install probe failure, and the
skip flag.

Credit @DavidMiserak (PR #1900) for the best-effort shape; re-implemented on
the current block.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* docs(designs): preserve the time-attack fork-port residual evaluation

The read-only evaluation of what remains portable from time-attack/gstack
(583 raw candidates, 415 canonical, 287 with a residual, 48 adversarially
refuted, 14 standing) lived only on a throwaway VM. This records the report,
the lite residual index, the absorbed/superseded ledger, the refuter
verdicts, and SHAS.md with the fork tip, upstream HEAD, merge-base, and a
sha256 per file, so every scheduled fix in this wave series traces to its
evidence.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* docs: file the fork-port residual deferrals and document the Chromium bootstrap knobs

TODOS.md gains the seven items the CEO and eng reviews of the fork-port
residual plan deliberately deferred (shared ownership helper, config-key
reader tripwire, "pre-existing" vocabulary, opt-in reply_language, .auth.json
writer removal, the fork-derived-change rule for CONTRIBUTING, hook slug
parity audit), each with rationale, and updates the two residual bullets for
PR #2232 and PR #2233 with their dispositions. README's Troubleshooting
section explains the best-effort Chromium bootstrap and its three knobs.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(relink): canonicalize link targets before the ownership check

Pre-landing review finding: the ownership gate compared readlink output
textually against INSTALL_DIR and RENDER_DIR, so two shapes of gstack's OWN
entries read as foreign and were left behind on a mode flip — a legacy
relative link (`gstack/qa/SKILL.md`, resolved against $PWD instead of the
link's directory) and an entry linked against the real path of a symlinked
install dir (~/.claude/skills/gstack -> checkout). Both now resolve: relative
targets anchor at the link's directory, the directory part is canonicalized
with pwd -P (the basename stays verbatim so a dangling managed target is not
misread), and both spellings of each root are accepted. Two regression tests.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(telemetry): one-shot setup events never sweep other sessions' pending markers

gstack-telemetry-log finalizes every .pending-<session> marker that is not
the caller's own as outcome:unknown and deletes it. setup's onboarding
events (_setup_welcome, _setup_playwright) have no session of their own, so
a Chromium bootstrap failure during a live skill session recorded a false
unknown for that session and removed its marker.

New --no-sweep flag skips the stale-marker pass; both setup call sites use
it (the synthetic --session-id did not prevent the sweep). Surfaced by the
Codex adversarial pass.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(hooks): partial upgrades fail closed for freeze and fall back for careful

A hook script and its sourced helper can be copied at different times. With
an older careful/bin/hook-extract.sh that lacks gstack_hook_state_root:

- check-freeze.sh now emits a deny ("fail closed, re-run ./setup or
  /unfreeze") instead of dying under set -e with no decision JSON.
- check-careful.sh falls back to ${GSTACK_HOME:-$HOME/.gstack} so project
  rules under the plain chain still load and a decision is always emitted
  (a warn hook must never break on a stale helper).

gstack_hook_state_root prints its root without a trailing newline and both
callers capture it with a printf-x sentinel, so a GSTACK_HOME ending in a
newline round-trips byte-for-byte with the writer's %q form.
gstack_hook_log_fire stays on ${GSTACK_HOME:-$HOME/.gstack}/analytics, the
same two-step chain every other analytics writer and reader uses, so the
usage log remains one file under a plugin install.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(setup): never link over, copy over, or reap a skill gstack does not own (#2119)

The relink gate alone left three destructive sites open:

- link_claude_skill_dirs runs BEFORE relink on every ./setup and used
  `ln -snf` (Linux replaces a user's real SKILL.md with a symlink into
  gstack) or, on Windows, rm -rf + cp followed by a marker that made the
  user's directory "ours" on the next flip. It and _install_alias_skill_md
  now consult _claude_entry_is_ours first and skip loudly.
- cleanup_prefixed_claude_symlinks kept a bare name-match deletion and a
  `*gstack*` substring match. Symlink arms use anchored `gstack/` segment
  patterns; the Windows real-file arm proves provenance (marker,
  byte-identity with our source, or the full two-line gen-skill-docs banner
  within the first 40 lines, never a one-line substring another generator
  could emit). cleanup_old_claude_symlinks uses the same banner rule.
- gstack-relink's fast path judged absolute targets before canonicalizing,
  so `/x/gstack/../foreign/SKILL.md` counted as ours; dot-segment targets
  now canonicalize first. Its banner rule matches setup's.

The `.gstack-owned` marker records the owning payload's realpath. Entries
skipped by setup or relink are listed in the final setup summary.

Chromium bootstrap refinements from the pre-landing review: an INT/TERM
trap kills the installer's process tree; the Windows npm chain no longer
masks an install failure; GSTACK_SKIP_PLAYWRIGHT=1 is reported as a choice
rather than a failure and sends no telemetry; the timeout knob is
normalized (0, 000, non-numeric, or more than nine digits fall back to the
600s default instead of killing on the first poll or never killing).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* docs: README Chromium note outside the CLAUDE.md fence; report banner stripped; deferrals name the four gate sites

- README: the Chromium troubleshooting paragraph sat inside the CLAUDE.md
  snippet code fence, so copy-paste put it into users' CLAUDE.md. Moved to
  the troubleshooting list.
- docs/designs/fork-port-residual-2026-09/REPORT.md: the scratch-run
  preamble banner is gone; SHAS.md re-hashed.
- TODOS: the ownership-gate deferral names the four sites and the
  marker-path idea for the fork-with-banner residual.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* docs(todos): the bootstrap block coverage gap is pinned except the quarantine helper

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(setup,relink): ownership proof has two strengths; weak proof never deletes a directory or discards a differing file

The first #2119 gate treated a byte-identical or banner-bearing real-file
SKILL.md as full ownership, so a prefix flip could rm -rf a user's directory
(their own qa skill started from a gstack SKILL.md, plus my-templates/) and
the link pass could replace their customized file with a symlink. Two
strengths now:

- STRONG: the .gstack-owned marker (we created the directory), or a
  directory holding nothing but symlinks and the marker (deleting it loses
  no data). Only strong proof removes a directory whole.
- WEAK: byte-identity with our source or the two-line gen-skill-docs banner
  on a real file. Weak proof covers that SKILL.md and our runtime-asset
  links only; a differing file is moved to
  ${GSTACK_HOME:-~/.gstack}/backups/skills/<ts>/<skill>/ before we link
  over it, and setup/relink print one summary line naming what moved.

The marker is written on every platform now (path-independent proof for
Windows copies and for checkouts whose path carries no gstack segment), but
only for a directory gstack creates: a directory we merely link into
(unclaimed, or a legacy install) never becomes deletable whole. A directory
with no SKILL.md at all is unclaimed: the link pass may add our file, the
cleanup pass has nothing to remove.

Also from the review passes: the banner check reads 8192 bytes, not 40
lines (investigate, office-hours, plan-ceo-review and design-consultation
carry the banner past line 40 and were left "foreign" on pre-marker
Windows installs); a link into a checkout named without a gstack segment
(git worktree add ../gstack-<branch>) is ours when that tree carries
setup + VERSION + bin/; relink's fast path is gone so both files
canonicalize before judging; relink's root alias (_gstack-command) is
gated and stamped like every other entry; relink reports the bare entry
name with setup's wording and setup dedupes when forwarding
(_run_relink_quiet); the summary names the browser skills as examples.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(setup): Chromium-install lock reclaim is atomic and pid-validated; abandoned locks expire; the tree kill walks /proc without pgrep

- A pid file holding "", "-1" or "0" counted as a live holder (kill -0 -1
  signals every process and succeeds), locking Chromium out for good. A pid
  must be a positive integer; anything else is stale.
- Two setups judging the same lock stale raced on rm -rf + mkdir and the
  loser deleted the winner's fresh lock. The stale dir is renamed first
  (atomic), so exactly one reclaims.
- A lock dir with no pid file (killed between mkdir and echo) was never
  reclaimed; it now expires once older than the install bound.
- _kill_tree needed pgrep; debian-slim and git-bash ship none, so the bound
  killed only the wrapper subshell and the installer kept running. Without
  pgrep the children are found by walking /proc/*/stat.
- The timeout knob is normalized in one place with one comment; the trap's
  exit 130 is the only exit the block may contain.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(freeze): an unexpected non-zero death denies via an EXIT backstop instead of exiting with no decision

set -e plus a failing pipeline (a tool on PATH exiting non-zero, a deleted
cwd) ended the deny-tier hook with no JSON, which Claude Code treats as
non-blocking: the edit outside the boundary proceeded. The EXIT trap now
prints a deny for any non-zero exit that happens before a decision was
written; every deliberate output sets _FREEZE_DECIDED first so a late
failure never prints a second object.

Tests also pin careful's state-root precedence (GSTACK_HOME over
CLAUDE_PLUGIN_DATA, plugin data when CLAUDE_PLUGIN_ROOT names gstack) and
the specific "out of date" deny for a helper without gstack_hook_state_root.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* refactor(telemetry): guard the stale-marker sweep with an if, not a break inside the loop

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* docs(todos): the ownership gate lives in six sites, and the cleanup arms inline their own chain

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* test: the two remaining linker harnesses extract the ownership helpers; the marker is the one allowed dotfile

setup-claude-skill-assets and user-render-out-dir-install slice
link_claude_skill_dirs out of setup without the helpers it now calls, so
the extracted function died with "command not found" (or, inside an if,
degraded into "foreign, skipped"). Both harnesses now carry the full helper
set and the globals. The hidden-files census allows .gstack-owned, which
the linker writes for directories it creates rather than copying from the
skill source.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(setup,relink): weak proof never costs the user a file — assets, flips, failed backups, foreign dir links, alias markers

Third review cycle on the ownership model, every item reproduced against a
fixture before the fix:

- Runtime assets (sections/, templates/, checklist.md, ...) were refreshed
  with rm -rf regardless of who owned the directory, so an unclaimed or
  weakly-owned directory lost the user's same-named real files. Real assets
  are now replaced only in a directory gstack created or strongly owns
  (marker, or SKILL.md symlink into gstack), plus the legacy Windows
  real-copy shape; elsewhere they are kept and reported. Symlinks are never
  content and are always refreshed.
- The prefix-flip cleanup deleted a customized banner-bearing SKILL.md that
  the link pass would have backed up. Both cleanups now compare the file
  against the source (raw, or with its name: line rewritten to the entry
  name, which is how alias and prefixed copies legitimately differ) and
  move a differing file to the backup root.
- A failed backup (unwritable root) returned success and the caller linked
  over the file anyway. It now fails, and the entry is left untouched and
  reported.
- A foreign DIRECTORY symlink whose target had no SKILL.md fell through to
  the "unclaimed directory" rule and was replaced by a real directory. A
  symlink that does not resolve into gstack is foreign, full stop.
- The alias installers stamped .gstack-owned into pre-existing directories;
  they now follow the same created-or-already-marked rule.
- A directory counts as "only links" only when every link resolves into
  gstack: a user's own symlink makes it mixed, so their link survives.
- The gstack-tree heuristic requires bin/gstack-relink, not just a VERSION
  file, a setup script and a bin/ directory.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(setup): lock reclaim hands a fresh lock back; a live holder past the bound is stale; /proc walk strips through the last paren

- Reclaim renamed the lock by path after judging it stale, so a second setup
  that had already reclaimed and re-created it lost its fresh lock and two
  installers ran. After the rename the moved directory's pid is re-read: a
  new live holder, or a fresh lock whose pid is not written yet, is moved
  straight back.
- A pid file whose process is alive but whose lock is older than the install
  bound is stale too (the holder is past its own deadline, or the pid was
  recycled to an unrelated long-lived process); it was locked forever.
- The /proc fallback stripped the comm field to the FIRST ") ", so a comm
  containing ") " hid a child from the kill. proc(5) says the last paren.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(freeze): mark the decision written after the helper prints, not before

If gstack_hook_decision ever failed between the flag and its output the
backstop would have stayed silent; setting the flag after the print keeps
the deny backstop armed until a decision is actually on stdout.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* chore: bump version and changelog (v1.80.0.0)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* docs: update project documentation for v1.80.0.0

README troubleshooting + manual uninstall cover the skill ownership gate
(.gstack-owned marker, ~/.gstack/backups/skills/<ts>/, foreign same-name
skills left untouched). CLAUDE.md and CONTRIBUTING carry the ownership and
best-effort Chromium bootstrap invariants for people editing setup and
gstack-relink. PROJECT_STRUCTURE gains careful/, freeze/, guard/, unfreeze/,
gstack-upgrade/, gstack-relink, and the setup/relink/hook test files.
TESTING_INTERNALS documents the anchor-sliced setup harness convention.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(setup): the final summary reports customized SKILL.md files moved to the backup root

The linker moved a weakly-proven, customized SKILL.md aside before linking
over it but never said so; only relink printed a "Moved N" line, and by the
time relink runs the file is already a symlink. The summary now names each
moved file and where it went, next to the foreign-entry report.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* test: run assembled setup harness scripts from a temp file, not `bash -c` argv (Windows MSYS2 8 KB truncation)

windows-free-tests (run 33907177851) failed in
test/setup-alias-name-uniqueness.test.ts with
  bash: -c: line 178: unexpected EOF while looking for matching `'
The harness slices functions out of `setup` and passed the joined script as
one `bash -c` argv element. The ownership gate grew that script from 6.7 KB
to 15.7 KB, and on Windows bash is an MSYS2 program: when its parent is a
non-MSYS process (bun), msys-2.0.dll's build_argv() runs any argument
containing `?*["'(){}` through globify()/glob(), which copies the pattern
into a fixed `Char patbuf[8192]` and silently stops after 8192 - MB_CUR_MAX
(8186 chars under C.UTF-8); GLOB_NOCHECK then returns the truncated text as
the argument. Character 8186 lands inside the single-quoted sed token on
line 178. Rebuilding the exact script with CI path shapes and cutting it at
8186-8190 characters reproduces the identical message locally; cmd.exe's
8191-UTF-16 cap and CreateProcess's 32767 do not fit the evidence.

Fix: test/helpers/bash-script.ts writes the script to a temp file and runs
`bash <path>` — a short glob-free argument that never enters globify. Every
setup harness that assembled a script for `bash -c` (11 files, 22 sites)
uses it; timeouts and env are preserved verbatim, spawn/timeout errors are
appended to stderr, temp cleanup is best-effort. `spawnSync('bash',
[<Windows absolute path>])` already passes on windows-latest in setup-help,
uninstall-windows-copies and the migration tests. The Windows-curated list
is byte-identical before and after.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* docs(test-free-shards): the rerun-refresh harness spawns bash <tempfile> via test/helpers/bash-script.ts, not bash -c

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-05 14:45:28 -07:00
ad8400543c v1.69.0.0 fix: the silent-failure wave — 6 fixes, 5 community PRs absorbed, tracker closed with receipts (#2666)
* test(wireup): make gbrain-missing PATH fixture hermetic

The gbrain-missing test appended the host PATH (and a hardcoded /opt/homebrew/bin) to the fixture PATH, so on any machine with a real gbrain installed the 'missing' case saw it, exited 0 instead of 2, and could never fail where the bug exists — a false green for a whole machine class. The fixture now keeps only root-owned OS dirs on the child PATH, and a new determinism check plants a host-like gbrain to prove it is unreachable.

Absorbed from PR #2615 with authorship preserved; the PR-thread liveness screenshot (docs/images/gstack-pr-liveness-2255.png) is dropped — referenced by nothing in the tree.

Fixes #2255

Co-authored-by: CommandCodeBot <noreply@commandcode.ai>

* fix(evidence): stop bun's dotenv autoload from reaching the spawned command

`bin/gstack-evidence` has a `#!/usr/bin/env bun` shebang, and bun AUTO-LOADS
`.env`, `.env.<NODE_ENV>` and `.env.local` from the cwd into `process.env`. The
wrapper then spawned the command with no `env` override, so every command run
through it inherited those variables — and a repo `.env.local` routinely holds
production credentials.

Two things go wrong, and the second is worse than the leak:

1. Secrets reach a child that would not otherwise have them. `npm test` run by
   hand in the same shell sees none of them; the same command through the wrapper
   sees all of them.
2. THE COMMAND UNDER TEST BEHAVES DIFFERENTLY, so the ledger certifies a run that
   is not the run CI performs. Observed in a Next.js repo on 2026-08-20: four
   tests failed 4/4 through the wrapper and passed 5/5 without it, because app
   code branched on env vars only the wrapper supplied. Nearly an hour went into
   chasing a "flake" that was the measuring instrument. The wrapper exists to
   record trustworthy evidence, so silently altering the environment defeats its
   purpose.

The fix builds the child env from `process.env` minus the keys bun injected, and
detection is exact rather than heuristic: verified on bun 1.3.11, a dotenv file
does NOT override a variable the shell already exported (the shell's value wins).
So a key whose live value equals the dotenv file's value was injected by bun, and
dropping it restores the environment the user's own shell would have given the
command. A key whose live value differs is genuinely the caller's and survives.

`BUN_DOTENV_FILES()` mirrors bun's precedence, including that `.env.local` is
skipped when NODE_ENV is "test" — scrubbing a key bun never loaded would strip a
variable the caller legitimately provided.

Escape hatch: GSTACK_EVIDENCE_KEEP_DOTENV=1 keeps the old behaviour. When keys are
scrubbed the wrapper warns with the KEY NAMES ONLY, so the diagnostic cannot
become the leak it prevents.

Tests: 6 cases, mutation-verified — removing `env: spawnEnv` reddens exactly the
two leak tests and restoring it gives 30/30. Every leak test asserts the scrub
warning fired, because `bun test` sets NODE_ENV=test and the first version of
these tests passed vacuously against a `.env.local` bun had never loaded.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Absorbed from PR #2652 with authorship preserved. Wave additions: a doc-comment on the ${VAR}-expansion limitation (bun expands refs, the reader compares raw text — those keys are left in the child env, failing open) and a regression pin for the unreadable-.env fail-open path with a functional DAC-override skip guard.

Fixes #2624

* fix(setup): reap dangling skill dirs when the payload is gone

cleanup_old_claude_symlinks derived its work list from the payload directory, so when the payload was gone — precisely when orphans exist — the glob matched nothing and the loop never ran; the -f guard also followed symlinks, hiding dangling SKILL.md links even with a payload present. The cleanup now scans the DESTINATION skills dir (-e/-L, so dangling symlinks are visible) and anchors SKILL.md provenance to path segments (gstack/*, */gstack/*, */.gstack/render/claude/*) instead of a bare *gstack* substring that would eat a user skill under ~/tools/gstack-fork/. The Windows real-file arm stays payload-gated: a real file has no provable owner.

Absorbed from PR #2634 (2 commits squashed) with authorship preserved. The symmetric cleanup_prefixed_claude_symlinks hole is filed as a TODOS.md residual in this wave.

Fixes #2204

* fix(redact): tolerate EEXIST from recursive mkdir in install-prepush-hook on bun/Windows (#2635)

fs.mkdirSync(dir, { recursive: true }) is a no-op on an existing directory
in Node, but bun on Windows throws EEXIST - crashing hook install on any
repo whose .git/hooks already existed, leaving the repo unprotected.

Add lib/fs-utils.ts mkdirpSync: swallow EEXIST only when statSync confirms
the path is an existing directory; a regular file occupying the path, a
stat failure, or any other errno still rethrows. Use it in
installPrepushHook().

The regression test emulates the Windows bun fs semantics via a
bun --preload fixture, so the exact crash path runs (and fails on the old
code) on any platform, including CI Linux.

Absorbed from PR #2641 with authorship preserved.

Fixes #2635

* fix(bin): route remaining Windows-reachable mkdirSync sites through mkdirpSync

Sweep follow-up to #2641's lib/fs-utils.ts helper: bun on Windows throws EEXIST from a recursive mkdir on an existing dir, so every unguarded recursive mkdirSync on a Windows-reachable path is a latent crash. Converted: bin/gstack-decision-log (unguarded, runs on every decision log — the second call on any machine hits the pre-existing projects dir), bin/gstack-evidence logsDir + ledger dir sites, and bin/gstack-redact-prepush's skip-log site (already try-wrapped, so its failure mode was a silent skip-log loss rather than a crash — the fix makes the log survive). The ~15 remaining gbrain/mac-lane sites are deliberately left alone.

Regression: fs-utils.test.ts drives gstack-decision-log twice, the second run under the bun-Windows EEXIST preload fixture — the pre-sweep code exits 1 with EEXIST there; verified red against v1.68.3.0.

* fix(setup-gbrain): warn about the ZeroEntropy sunset before Sept 4

ZeroEntropy was acquired by Notion and sunsets its hosted API on September 4, 2026. A gbrain configured with the zeroentropyai embedding recipe keeps importing pages after that date but embedding silently fails — pages land structurally with no semantic search, this repo's tracker P1 (TODOS.md NEXT PRIORITY). Nothing in gstack ever recommended ZeroEntropy (the dependency is gbrain-internal), so the gstack side is detection + advisory: the wireup helper warns when ~/.gbrain/config.json names the recipe (fail-open grep — a missing, unreadable, or other-provider config stays silent and never blocks a working setup), the setup-gbrain provider-default comments say never to select the legacy recipe for a new brain, and USING_GBRAIN_WITH_GSTACK.md gains a troubleshooting entry. The gbrain-side provider migration stays open upstream.

Refs #2365

* fix(gbrain-source-wireup): first sync targets the registered source, not --repo

The wireup registered a federated source by id, then ran 'gbrain sync --repo $WORKTREE' — which resolves against the brain's DEFAULT source and (on gbrain 0.46.x) rewrites that source's local_path anchor to our worktree. Net effect: the user's primary knowledge source silently repointed at the gstack brain worktree while the just-registered source got zero pages, and pages_synced still reported success. The sync now targets the registered id ('gbrain sync --source $id', the same form the repo's own troubleshooting documents). Because the script's stated floor is gbrain >= 0.18.0 and nothing proves --source exists there, support is probed via 'gbrain sync --help' first: an older gbrain keeps the wrong-but-working --repo call with an upgrade warning instead of converting it into a hard failure. The probe sits after the GSTACK_BRAIN_NO_SYNC early-exit and is unreachable in --probe mode.

Regression tests (fail on v1.68.3.0): a no-skip sync case asserting the call log shows 'sync --source gstack-brain-<id>' and never 'sync --repo', and an old-gbrain fallback case (fake sync --help without --source) asserting --repo plus the upgrade warning.

Fixes #2662

* fix(setup): --host slate exits informatively instead of silently installing nothing

slate passed --host validation (added to the accept-list in v1.64.1.0) but never got a dispatch arm, and the all-INSTALL_*-zero fallback lives inside the auto branch — so './setup --host slate' configured nothing and exited 0, a silent no-op strictly worse than the original hard rejection. slate is now an informational arm (per docs/designs/SLATE_HOST.md it is blocked on the host-config refactor; Slate reads .claude/skills as a compatibility fallback, so the arm points at './setup --host claude'), and a defensive guard after the dispatch chain errors loudly (naming the host, the missing arm, and the valid targets, exit 1) if a future host is ever accepted without being wired.

Regression tests (fail on v1.68.3.0): a dispatch-arm ratchet asserting every accept-listed install target has a matching dispatch branch — the exact drift class; a registry cross-check deriving both sides from hosts/index.ts and setup's case arms; a behavioral slate probe (exit 0, points at --host claude, never reaches the installer — on unfixed code it fell through into the installer); and a static pin on the guard's shape.

Fixes #2361

* fix(make-pdf): resolve the sibling browse binary from execPath, not argv[0]

In a bun-compiled binary process.argv[0] is the raw invocation string — often relative ('./pdf', 'pdf') — so dirname(argv[0]) yielded '.' and the sibling candidates (../browse/dist/browse etc.) resolved against the CWD instead of the install dir. Resolution was cwd-dependent: correct-by-luck when the fallbacks rescued it, wrong when a cwd-relative path matched. process.execPath is always the absolute binary path. The resolution step takes an injectable selfPath (defaulted) because under bun test the process path is the bun runtime and the compiled-binary shapes are otherwise unreachable.

The issue's other half — pdf setup failing on newtab('about:blank') — was already fixed on main in v1.64.0.0 (browse/src/url-validation.ts exact-match allows about:blank; its comment names this exact smoke). This commit closes what remains.

Regression tests (the sibling-via-selfPath case fails on v1.68.3.0 — pre-fix code ignores the seam and either resolves the global install or throws): sibling resolution from an install-shaped tree, and a decoy-browse-DIRECTORY case pinning that a directory never wins resolution.

Fixes #2156

* fix(memory-ingest): store the normalized git_remote so unattributed pages hit the policy filter

buildTranscriptPage wrote the normalized '_unattributed' sentinel into the page FRONTMATTER but stored the raw resolved remote ('' when unresolvable) on the page object. The policy filter fast-paths !p.git_remote, so under --include-unattributed an explicit '_unattributed → deny' (or read-only) policy never applied to exactly the pages it names — they ingested unpoliced. The stored value now matches the frontmatter.

Regression test (fails on v1.68.3.0): seeds the REAL bin/gstack-gbrain-repo-policy store with '_unattributed → deny' through its own set verb, ingests an unresolvable-remote session with --include-unattributed, and asserts nothing reaches gbrain — pre-fix the '' remote bypassed the filter and the import ran. A fake echoing tiers would pass on both sides of the fix; the real helper prints 'none' for unknown keys, so only a genuinely applied deny distinguishes the two.

Fixes #2353

* fix(land-and-deploy): MERGED recovery reconciles and reports remote-branch cleanup

Step 4's merge commands carry --delete-branch, and the success path tells the user 'The branch has been cleaned up.' When gh exits non-zero AFTER GitHub already merged (routine in worktree layouts: gh's local cleanup runs git checkout <base> and fails), the §4a-postfail MERGED recovery re-established everything EXCEPT the branch deletion — and said nothing about it, so the discrepancy was invisible. The MERGED path now reconciles: git ls-remote --heads distinguishes branch-already-gone (exit 0, empty → 'already cleaned up', idempotent on re-runs) from branch-survived (offer confirm-first deletion, matching the section's worktree posture; -d not -D for any local branch) from check-itself-failed (non-zero exit → 'couldn't verify', skip the offer — never read a failed check as a clean branch).

Template + regenerated SKILL.md + test extensions land in one commit (the md-sync assertion goes red otherwise). Regression assertions (fail on v1.68.3.0: no delete-branch reconciliation existed in test/ at all) pin the ls-remote check, the confirm-first delete, and the absent-vs-failed distinction.

Fixes #2656

* fix(scripts): stop heredoc bodies deadlocking under Homebrew bash

`./setup --help` can hang forever on macOS, printing nothing, with no way
to tell it apart from a slow install. Eleven scripts carry the same
latent hang, `setup` itself being the one every user hits first.

bash 5.2+ delivers a heredoc body of 64KiB or less through a pipe: the
forked child writes the entire body before exec, and nothing reads the
other end until the command starts. Under macOS pipe-KVA pressure the
kernel hands a fresh pipe a 512-byte buffer instead of the usual 16-64KiB,
so any body of 512 bytes or more blocks write() permanently. The capacity
check bash would need to notice (F_GETPIPE_SZ) is Linux-only, so it never
fires here. It is pressure-dependent, which is why it reads as "worked on
my machine" — the same script runs fine all day and then wedges.

Homebrew bash is what `#!/usr/bin/env bash` resolves to on a Mac with brew
on PATH, which is most of them. Apple's /bin/bash 3.2 predates the pipe
path and is unaffected, so the bug is invisible to anyone testing with the
system shell.

The fix is `BASH_COMPAT=50` in each affected script, which restores the
pre-5.2 tempfile path:

    $ bash -c 'probe() { [ -p /dev/stdin ] && echo PIPE || echo TEMPFILE; }
               probe <<EOF
    $(printf "x%.0s" $(seq 1 1000))
    EOF'
    PIPE
    $ BASH_COMPAT=50 bash -c '...same...'
    TEMPFILE

- Not a `#!/bin/bash` shebang swap: that pins the script to whatever bash
  lives at /bin (3.2 on macOS, absent on some Linux distributions) and is
  bypassed entirely by `bash script.sh` call sites. The variable survives
  both.
- Not exported, so child processes keep their own compat level.
- Placed below any `--help` sed range that reads $0, so usage output is
  unchanged (verified on all eleven).
- Every guarded script is bash-3.2-clean — no associative arrays, case
  conversion, or mapfile — so compat level 50 costs them nothing.

test/heredoc-pipe-deadlock.test.ts scans every tracked shell script for a
heredoc body in the 512B-64KiB window and fails without the guard, and
proves the mechanism at runtime on bash 5.2+ by asserting the body moves
from PIPE to TEMPFILE. On older bash the runtime half is skipped, since
the pipe path does not exist there.

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

Absorbed from PR #2640 with authorship preserved. Wave adaptations: the pipe-probe test skips on minimal-/dev environments without /dev/stdin (it would report OTHER for an unobservable fd), and one caveat verified during review: on bash 4.3/4.4 (e.g. Git Bash), assigning BASH_COMPAT=50 prints a non-fatal 'invalid value' warning to stderr — those bashes are already on tempfiles, so the guard is a no-op there; windows-setup-e2e exercises this empirically.

* docs: TODOS.md v1.69 wave close-out

Move the slate P4 entry and the ZeroEntropy P1's gstack-side half to Completed (v1.69.0.0); reframe the ZeroEntropy NEXT PRIORITY entry around the remaining gbrain-side work; file the wave's four residuals with rationale — the prefixed-cleanup symmetric conversion, the #2163 legacy-slug checkpoint heal, the invited #2657 --reconcile contribution, and the table-driven setup host dispatch behind the new cross-check ratchet.

* chore: bump version and changelog (v1.69.0.0)

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

---------

Co-authored-by: Som Samantray <som.samantray@gmail.com>
Co-authored-by: CommandCodeBot <noreply@commandcode.ai>
Co-authored-by: Connex Client Access <paul@paulkortman.com>
Co-authored-by: y$un_ <forrest.sun527@gmail.com>
Co-authored-by: Lockyer <135391289+Lockyer228@users.noreply.github.com>
Co-authored-by: Benjamin D. Smith <benjamin.smith@binarysword.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-08-24 08:55:58 -07:00