mirror of https://github.com/garrytan/gstack.git
008dd65b1f
* fix(hooks): nest freeze/careful permissionDecision under hookSpecificOutput Claude Code ignores a top-level permissionDecision, so the /freeze deny and /careful ask guards silently allowed everything. Nest both under hookSpecificOutput with permissionDecisionReason, update the shape-blind tests to pin the nested form, and document the constraint in both skill templates (regen included). Closes half of #1459 (freeze enforcement chain). Contributed by @jawadakram20 (PR #2331; team-init hunk deferred to the dedicated team-init fix). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(team-init): required-mode hook blocks with nested schema + exit 2 The generated check-gstack.sh emitted a flat permissionDecision payload and exited 0, which Claude Code ignores — required mode enforced nothing. The generated hook now nests the deny under hookSpecificOutput and exits 2 so the block holds even if the JSON schema drifts again. Adds a temp-repo regression test that runs the generated hook under both installed and missing-gstack homes. Fixes #2413, #2296. Contributed by @Masashi-Ono0611 (PR #2423). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(careful): close three check-careful bypasses via real JSON extraction The grep-based command extractor stopped at the first escaped quote, so any quoted argument truncated the command before the pattern checks ran — `git commit -m "wip" && rm -rf /` was silently allowed. Replace it with a python3/node JSON parse that fails CLOSED on unreadable payloads, add an IFS/base64-to-shell obfuscation tripwire, and stop multi-line commands from riding the single-line safe-exception whitelist (line-based grep would have approved `rm -rf /` when a later line matched node_modules — a hazard the real newline decoding exposed). Contributed by @wtamminga (PR #2426; the -R hunk was dropped — it landed in v1.61.0.0 — and output shapes updated to the nested hookSpecificOutput form). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(review,autoplan): require explicit run_in_background: false on specialist agents Claude Code v2.1.198 made subagents run in the background by default, which inverted the old "do not use the flag" guidance: review-army specialists and autoplan dual voices silently launched in the background and the merge step could proceed before they completed — regressing the #497 fix. The generated guidance now instructs an explicit run_in_background: false, and a static tripwire fails the free suite if the inert inverted phrasing ever returns to any generated SKILL.md. Fixes #2440. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(investigate): anchor the scope-lock freeze hook on $HOME, not CLAUDE_SKILL_DIR The investigate skill's PreToolUse hooks and Scope Lock probe resolved check-freeze.sh via ${CLAUDE_SKILL_DIR}, which does not exist when frontmatter hooks run — the || exit 0 tail then failed open, so the debug scope boundary silently never engaged (#1871 follow-up). Anchor all four sites on $HOME/.claude/skills/gstack/ like careful/freeze, and add a static test asserting no frontmatter command: line in the guard-family skills ever references CLAUDE_SKILL_DIR again. Fixes #2469; closes the last live half of #1459 together with the freeze/careful hookSpecificOutput fix. The broader portable-install-root rewrite stays #1882 (its own focused PR per the TODOS.md decision). Reported with a fix by @maxpetrusenkoagent (PR #1873; absorbed narrowly — the cwd-walk rewrite belongs to #1882). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(redact): scan large diffs in line-aligned slices; stop digit-UUIDs matching as cards/phones The prepush guard blocked any push whose added lines exceeded the engine's 1 MiB cap with engine.input_too_large — a size error naming no credential — which trains people onto GSTACK_REDACT_PREPUSH=skip. Scan in 768 KiB line-aligned slices instead (no pattern is multi-line, so a boundary cannot bisect a secret); a single oversized line still goes to the engine intact and fails closed. Also suppress card/phone matches whose span sits ENTIRELY inside a UUID — digit-only UUID fixtures were 14 of 21 MEDIUM findings on an ordinary branch, the noise level that stops people reading MEDIUM at all. Fixes #2304. Contributed by @luckywenapere (PR #2543). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * feat(redact): block Google OAuth client secrets and Telegram bot tokens at HIGH GOCSPX-prefixed client secrets and <bot_id>:<35-char> Telegram tokens are never-publishable credential shapes with unambiguous formats — both now block at HIGH like the other live-format credentials. Contributed by @francis-eye (PR #2357). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(redact-prepush): resolve the real push base instead of EMPTY_TREE whole-repo scans When the remote default branch is not main/master (or origin/HEAD is unset), the merge-base guess failed and the hook fell back to scanning the ENTIRE repository as added lines — re-attributing long-pushed secrets to the current push and, on any real repo, tripping the engine byte cap so the push blocked having scanned nothing. Derive the base from commits reachable from no remote-tracking branch, keep the empty-tree path only for genuinely fresh repos, and split the block message so an unscannable diff is reported as "could not scan (fail closed)" rather than "credential found — rotate it". Contributed by @stormeoio (PR #2398). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(redact-prepush): preserve the trailing newline handed to chained pre-push.local The chaining wrapper captured stdin with $(cat), which strips the trailing newline — a chained shell hook built on `while read` then never entered its loop for the final (usually only) ref line and exited 0, failing OPEN. Use the printf-x sentinel so the byte-exact input reaches the chained hook, with tests covering both the pass-through and the short-circuit paths. Contributed by @francis-eye (PR #2358). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(redact-prepush): close the ext-diff, header-lookalike, and ref-parse bypasses Three ways the pushed diff escaped scanning: (1) a user-level diff.external or textconv driver replaced the diff with its own output — zero '+' lines, so the scan saw nothing (now --no-ext-diff --no-textconv); (2) an added content line whose text begins with "++" renders as "+++…" and the blanket header skip dropped it (now hunk-aware header detection); (3) a pre-push ref line that failed to parse was silently skipped, leaving that ref unscanned (now fails closed with the offending line named). Minimal reimplementation of the two confirmed bypasses from PR #2498 by @lubosxyz (the full PR overlaps the chunked-scan work absorbed separately), plus the unparseable-ref hardening. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(pair-agent): keep the ngrok authtoken out of the transcript and shell argv The not-authed flow told the user to paste their ngrok authtoken into the chat so the agent could run `ngrok config add-authtoken` — putting a live credential in the transcript, tool-call argv, and anything the transcript syncs to. The user now runs the auth command in their own terminal; the agent only verifies via `ngrok config check`, and a pasted token triggers a rotate-and-reauth instruction. A static test pins that no agent-run bash fence ever contains add-authtoken again. Fixes #2335. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(update-check): crash emits CHECK_FAILED instead of reading as up-to-date gstack-update-check signals "up to date" with SILENCE, and it runs under set -e — so any unguarded mid-script failure exited quietly and was indistinguishable from a current install. Observed live as a 45-release silent-staleness incident. An ERR trap (with -E so it propagates into functions) now emits a CHECK_FAILED sentinel naming the line and status, and exits 0 so caller `|| true` guards can't eat it. Behavioral tests cover both the crash and the healthy-silent paths; egress-receipt wiring is untouched and still pinned by test/egress-receipt-wiring.test.ts. Fixes #1974. (#2378's HEAD-SHA staleness half was already fixed on main by the ls-remote + SHA-pinned VERSION resolution — close as already-fixed.) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(deps): bump diff 7.0.0 → 9.0.0 (GHSA-73rr-hh4g-fpgx parsePatch DoS) The advisory affects diff 6.x–8.0.2. The only API this repo uses is Diff.diffLines (browse/src/snapshot.ts:571, browse/src/meta-commands.ts:728), which is unchanged across the major hop; snapshot tests pass against 9.0.0. Closes #1588. Contributed by @genisis0x (PR #1599; VERSION collateral stripped, lockfile regenerated fresh). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * ci(evals): skip eval jobs deterministically on fork PRs Fork PRs never receive repository secrets, so every API-calling eval failed at SDK auth — but only when Docker-cache luck let the jobs start at all, making fork PRs randomly red or grey. Skip the eval and report jobs explicitly for fork-origin PRs, keep the image BUILD (validates Dockerfile.ci changes) without the push a fork token can't perform, and leave full coverage for same-repo PRs, pushes, and dispatches. Contributed by @andrey-esipov (PR #2345). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(extension): deny token/port reads to content-script and foreign senders background.js answered getPort — port, connected state, AND the browse server auth token — to any sender that passed the type allowlist, including content scripts running in web-page context and, behind only the sender.id check, anything without extension-page provenance. The getToken sender.tab restriction covered getToken alone, and only after getPort had already handed out the token. Single decision point now: extension/sender-auth.js classifies each message type; the eight privileged types (getPort, setPort, getServerUrl, getToken, fetchRefs, command, sidebar-command, getTabState) require an own-extension-page sender (chrome-extension://<own id>/ URL, no sender.tab, own sender.id). Denied senders get { error: 'unauthorized' } and nothing else — never the token, never the port. Content-script flows (elementPicked, pickerCancelled, inspectResult, openSidePanel) are untouched, and the sidepanel/popup keep the getPort token field their connect path reads. The policy mirrors the v1.63 server-side model: AUTH_TOKEN is released only to the pinned extension Origin via POST /extension-token, so the extension must not re-leak it to contexts the server would never have trusted. browse/test/extension-sender-auth.test.ts drives the real background.js onMessage listener under a chrome stub with four sender shapes (own extension page, own content script, foreign extension id, missing sender.url) and pins that denied responses carry no token/port fields, that a denied setPort never persists, that a denied command never reaches the network, and that the inspector + tab-state flows keep working. The helper is loaded via importScripts in the classic service worker and require()-able from bun tests. Contributed by @punksterlabs (PR #1822; reimplemented against the v1.63 POST /extension-token pinned-origin model). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * test(update-check): fixture links gstack-egress-lib.sh — all 38 tests failed on main v1.63.0.0 made bin/gstack-update-check source bin/gstack-egress-lib.sh unconditionally, but the test fixture's GSTACK_DIR only linked gstack-config — every test died at the source line (0/38 pass on pristine main, verified). The suite-truncation bug hid it: the runner was killed by an earlier file's delayed process.exit before this file ran. Link the lib like the real install layout the script assumes. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(browse): capture active-tab state before close() — last-tab auto-create raced the close event closeTab checked `tabId === this.activeTabId` AFTER awaiting page.close(), but the page 'close' event handler can fire during that await and reassign activeTabId — losing the race meant the last-tab auto-create never ran, leaving the manager with zero tabs. Capture wasActive before closing, and only reassign activeTabId when it no longer points at a live tab. Part of the test-integrity repairs unmasked by the suite-truncation fix. Contributed by @time-attack (PR #2230, browser-manager hunk). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * test(browse): delete the orphaned sidebar chat-queue suite; align sidebar-ux/tabs with the PTY-only sidebar browse/test/sidebar-integration.test.ts tested the /sidebar-command queue path ripped in v1.14 (34 references to removed endpoints — 11 permanent failures masked by suite truncation). sidebar-ux.test.ts carried 73 failures pinning the same dead surface (pickSidebarModel, ANALYSIS_WORDS); the trim keeps its 108 live tests, including the background.js token/allowlist gates. sidebar-tabs gets the two matching expectation updates. Closes #2420, #1980. Contributed by @time-attack (PR #2230, sidebar hunks; the security-sidepanel-dom deletion was NOT taken — that suite pins the live sidepanel DOM surface and passes). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * test(browse): align dual-listener and terminal-agent static guards with the current source Two static-grep guards pinned superseded source shapes and failed once the suite actually ran them: the tunnel dispatch gate is args-aware since the --out disk-write ban (canDispatchOverTunnel takes command AND args), and lazy PTY spawn routes through the maybeSpawnPty helper since v1.44. The updated assertions pin the current, stricter shapes (open() never spawns; the helper is the only spawnClaude caller). Contributed by @time-attack (PR #2230, dual-listener + terminal-agent hunks). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(test): remove all 8 delayed process.exit teardown bombs — the tier-1 gate can finally fail bun test runs every file in ONE process, so a 500ms setTimeout(process.exit(0)) armed in afterAll fired mid-way through a LATER file and killed the entire suite with exit 0 and no summary — only ~16 of 434 files ran, and every downstream failure was invisible (observed live throughout this wave's enumeration). Changes, all guarded by fault injection: - Replace every delayed-exit teardown with a time-boxed close of the file's own browser (8 files across browse/ and design/); stub the daemon /shutdown timer instead of letting its unconditional process.exit tear the runner down. - test/no-suicide-exit.test.ts: static tripwire — no *.test.ts may schedule a delayed process.exit again. - test/exit-propagation.test.ts + fixtures: fault injection with REAL bun output proves the truncation shape (exit 0, no summary) and that scripts/test-free-shards.ts now detects it: a shard exiting 0 WITHOUT bun's final summary line is treated as FAILED (exit code alone is not evidence of completion). - handoff: the three headed-mode integration tests are darwin-skipped with a pointer to the known macOS headed-launch breakage (#2242/#2554); they keep running on Linux CI. Un-skip in the browse-daemon wave. - feedback-roundtrip: repair the handler call sites unmasked by the fix — handlers take (command, args, session, bm); passing the manager where a session belongs broke all six tests. - user-slug-fallback: HOME isolation makes endpoint_hash deterministic. Fixes #2421, #2435. Contributed by @sneakygriff (PR #2172) with repairs from @time-attack (PR #2230 feedback-roundtrip hunks); supersedes PR #2252 by @whd4 (same defect, credited). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * test: include design/test/ in the free suite and the sharded runner design/test was absent from both the package.json test globs and TEST_ROOTS in scripts/test-free-shards.ts — its tests (including one of the teardown bombs removed in the previous commit) never ran in any CI or local free run, so design fixes could ship without their unit tests executing. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(make-pdf): reject directories when resolving the browse binary access(X_OK) is true for directories (they carry the execute/traverse bit on POSIX and pass the Windows existence check too), so cwd-dependent resolution could pick the ~/.claude/skills/browse alias DIRECTORY as the browse binary. Every browse call then exited 4 with empty stderr, which make-pdf surfaced as "Chromium failed to launch" against a perfectly healthy Chromium (#2156). Guard isExecutable with statSync().isFile() so only regular files qualify. Contributed by @jwilk-hrep (PR #2538). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(make-pdf): write browse-bound temp files under the safe-dirs allowlist os.tmpdir() on macOS resolves to /var/folders/..., which fails browse's safe-dirs validation ([/tmp, cwd]) since the v1.6.0.0 --from-file tightening. Default PDF output (generate with no -o), the preview HTML, tmpFile() scratch files, and setup's smoke-test fixture/output all wrote there, so browse rejected the paths it was asked to read or write. Export PAYLOAD_TMP_DIR from browseClient (the existing TEMP_DIR convention: os.tmpdir() on Windows, /tmp elsewhere) and route orchestrator.ts and setup.ts temp files through it. Contributed by @lvthewah (PR #2505; the browse-binary directory guard from that PR landed separately via PR #2538). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(make-pdf): stop URLs swallowing smartypants placeholders A bare autolinked URL (<a href="X">X</a>) has zero whitespace between the URL text and its own closing tag. TAG_RE carves that </a> into a NUL-delimited SMARTPANTS_PRESERVED placeholder BEFORE the URL pass runs, and URL_RE's \S+ swallowed the adjacent placeholder into the URL match. The restore pass is single-shot, so the inner placeholder never restored: raw "SMARTPANTS_PRESERVED_N" text leaked into the rendered link, the </a> vanished, and link-blue styling bled into the rest of the document (#2084). Excluding the NUL sentinel (\u0000) from the URL character class stops the match from crossing into an already-carved zone. Contributed by @marshaung (PR #2280; PR #2339 by @BrendaB24 covered the same smartypants defect). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(make-pdf): no blank first page when content precedes the first H1 Two paths put invisible content ahead of the first H1 and cost users a blank page 1 (#1904): - A visually-empty preamble (leading <style> block, HTML comment) became its own .chapter. That section took the `.chapter:first-of-type { break-before: auto }` exception, so the first real chapter inherited `break-before: page` and started on page 2. Non-rendering preambles now fold into the first real chapter (markup preserved, no page break); real text preambles keep their own chapter. - Leading YAML frontmatter rendered as a literal paragraph of body text on its own first page (marked has no frontmatter awareness). It is now stripped before parsing; a `---` thematic break elsewhere is untouched. Contributed by @jbetala7 (PR #1913). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(browse): allow about:blank so a restarted daemon can initialise The daemon opens its own first tab on about:blank, so blocking it in validateNavigationUrl meant a restarted daemon could never recreate the blank tab it starts from — and `browse newtab about:blank`, which `make-pdf setup` runs as its Chromium smoke test, failed and surfaced as "Chromium failed to launch" against a healthy browser. Allow about:blank ONLY, never the about: scheme: about:blank has no origin, loads nothing and runs nothing, while about:config and friends are real surfaces. Exact href match (lower-cased, since the URL parser normalises the protocol but not the opaque part), so about:blankfoo stays blocked. Contributed by @jwilk-hrep (PR #2537). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(design): drop gpt-image-2 tool model that 400s under the gpt-4o orchestrator The Responses API rejects pairing a gpt-4o orchestrator with an image_generation tool spec'd as model: "gpt-image-2" (400 invalid_request_error), which took every design image call offline — generate, variants, iterate (both threaded and fresh paths), evolve, and /design-shotgun (#1771). gpt-image-2 is only valid under a gpt-5 orchestrator; with gpt-4o the tool must omit the model field (defaults to gpt-image-1). Remove the model field at all five call sites and add a static-grep tripwire test (design/test/image-gen-pairing.test.ts) that fails CI if any design/src module reintroduces the gpt-4o + gpt-image-2 pairing. Re-enabling gpt-image-2 later requires bumping the orchestrator off gpt-4o in the same diff, which the tripwire permits. Contributed by @Pablosinyores (PR #1773). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(design): variants AbortError message reports the real 240s timeout generateVariant arms its abort at 240_000 ms but the AbortError branch returned "Timeout (120s)" — off by 2x, so a user staring at the failure could not tell whether to bump the timeout, retry, or drop the call. Report the actual configured bound, and pin it with a test that forces the abort path (fast-forwarding only the 240_000 ms timer) and asserts the surfaced string matches. Contributed by @vryahn (PR #1774). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(memory-ingest): stop silently ingesting 0 pages — include gitignored staging, reconcile counts Pages stage into ~/.gstack/.staging-ingest-*/ inside a repo whose .gitignore is `*`, and gbrain import honours .gitignore — so it collected 0 files, imported nothing, and the ingest still reported "written: N" from the STAGED count while advancing state, meaning no future run ever retried. Three layers now: (1) pass --include-gitignored (root cause); (2) if the installed gbrain predates the flag, retry without it (subcommand --help is generic, so the attempt is the only probe) with an upgrade pointer; (3) reconcile gbrain's imported+unchanged accounting against the staged count and REFUSE to advance state on a shortfall, naming the gitignore collision. Fixes #2144, #2104. Contributed by @gawievanblerk (PR #2560) and @Charles-Grant (PR #2486). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(autoplan): task aggregator returned zero tasks on every run — jq scope bug Inside ($commits | split("|") | ...) the "." context is the split ARRAY, so the filter's bare .commit raised "Cannot index array with string" on every record — and the 2>/dev/null swallowed it, so aggregation silently produced zero tasks no matter how many the reviews emitted. Bind .commit to $c before the pipe. Reproduced live before the fix; regenerated autoplan/SKILL.md. Fixes #2018. Contributed by @kkroo (PR #2416; regenerated against the current template). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(session-update): un-wedge auto-upgrade — autostash over local patches, log the pull's real reason On a normal install the tracked files ARE locally patched (skill-prefix name rewrites, gbrain-refresh blocks), so the bare `git pull --ff-only` refused on every run and auto-upgrade froze forever — observed as 308 consecutive PULL_FAILED entries with the reason discarded by 2>/dev/null. Pull now runs --autostash (local patches ride over the update and pop back), stderr is captured into the log so a genuine failure names its cause, an autostash pop conflict recovers to a clean tree and re-renders the patches (gstack-patch-names + gbrain-refresh, both idempotent), and a successful pull re-renders them as a self-heal. Behavioral tests cover the wedge shape and the reason logging. Fixes #2566. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * test: raise the free-suite per-test timeout to 30s bun's 5s default is fine for a file run solo, but the monolithic free suite shares one process across 100+ files whose browser instances contend for launch slots — Playwright tests that pass in isolation time out mid-suite. 30s matches the ceiling the enumeration runs used; the sharded runner (test:free) is unaffected. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(question-log): parse native AskUserQuestion answers — every native answer logged as __unknown__ Current Claude Code returns AskUserQuestion results as an OBJECT map keyed by question text ({answers: {question: label}}); the hook only handled the legacy array shapes, so 86% of live records carried user_choice __unknown__ — and the bin then scored every one as followed_recommendation false, silently poisoning plan-tune metrics. Adds the object-map extraction (exact + whitespace-normalized + single-question pairing, multiSelect joins, annotations as free_text), strips the (Recommended) suffix from BOTH sides of the comparison, skips the computation entirely on extraction failure, and logs unrecognized shapes to hook-errors.log instead of embedding them in the record. Fixes #2336, #2206. Based on the working patch in #2336 by @yijisoo; suffix comparison fix contributed by @chuchu2781 (PR #2400). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(slug): canonicalize slash branches to dash form — review history stops splitting Branch-name sanitization disagreed across gstack (four incompatible rules), so reviews for the same slash-named branch landed in multiple files and the ship dashboard missed entries. gstack-slug now canonicalizes / to - in one place, and ship's review lookup routes through it; goldens regenerated against the current templates. Fixes #1127, #2550. Contributed by @ShuratCode (PR #2465; duplicate fixes by @xrfael-dev and two others in PRs #1851/#1699/#1621, credited). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(slug): resolve the project root by marker walk-up — subdirectory sessions stop misfiling state gstack-slug derived everything from pwd, so a session in a subdirectory got the subdir's basename as its slug (or an outer monorepo's remote), misfiling reviews/decisions/learnings under a phantom project — and the per-pwd cache made the wrong answer permanent. The resolver now walks up from pwd: outermost STRONG marker wins (.git, package.json, pyproject.toml, Cargo.toml, Gemfile, go.mod, .project.yaml), weak content markers (README, LICENSE) catch non-code project folders, deploy artifacts are deliberately not markers, and GSTACK_PROJECT_SLUG remains the escape hatch. The cache self-heals on mismatch. Main-side invariants preserved on top: the unconditional [a-zA-Z0-9._-] re-sanitize before echo and slash→dash branch canonicalization. Fixes #1125. Contributed by @ajeenkya (PR #1702; rebased over the sanitize and branch-canonicalization work that landed after it). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(hooks): shared spawn-bin helper — all three AskUserQuestion hooks were inert on Windows The plan-tune hooks resolved bin scripts via new URL(import.meta.url).pathname (which doubles the drive letter on Windows: /C:/C:/...) and spawnSync'd extensionless bash scripts directly (unrunnable without a shell association) — so question logging, preferences, and the error fallback all silently no-op'd on Windows, and /plan-tune collected no data. A single spawn-bin.ts helper now owns bin resolution (fileURLToPath) and win32 bash routing for every hook, with static tripwires so a future hook can't reintroduce the raw pattern. This is the one Windows-spawn idiom for hook code. Fixes #2356. Contributed by @rafassousa (PR #2504; supersedes PR #2399 by @chuchu2781). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * feat(model-overlays): add fable-5, opus-4-8, and sonnet-5 overlays + resolver mappings model-overlays/ had no entry for the current Claude generation, so every session on a Claude 5 family or Opus 4.8 model fell through to the generic claude.md nudges. Adds the three overlays with resolver mappings and per-overlay tests; generated output for the default host is unchanged (overlays activate by detected model). Closes #2509. Contributed by @chrisquorum (PRs #2246, #2243, #2247). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(windows): grant icacls ACEs by *SID, not unqualified username An unqualified username handed to icacls is ambiguous: on a machine whose hostname equals the username (a common Windows setup), it resolves to the MACHINE account instead of the user. Combined with /inheritance:r, that leaves ~/.gstack with a single ACE matching nobody — the process that just "secured" the directory locks itself out, and icacls still reports success. Both icacls sites in the repo (restrictFilePermissions and restrictDirectoryPermissions in browse/src/file-permissions.ts — the only icacls call sites; setup has none) now grant via icacls' literal-SID form `*<SID>`, resolved once per process from System32\whoami.exe (pinned to System32 because a bare `whoami` under a bash-flavoured PATH picks up the MSYS build, which rejects /user). Fallback when the SID can't be resolved is the domain-qualified `USERDOMAIN\username` name, which is unambiguous where the bare username was not. Windows-only regression tests assert the hardened directory stays usable by the calling process (readdir + write), which is exactly the check that a not-toThrow assertion sailed past before. Contributed by @asizux2 (PR #2479); the same defect was independently fixed by @Icandi40, @chiragborse1, @IntegriGit and @voltapix26. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(windows): forward windowsHide through the bun-polyfill spawn shims windowsHide is the one spawn option where Node's default is the opposite of Bun's: Node shows the child's console window, Bun.spawn hides it. The polyfill's spawn and spawnSync shims dropped the option entirely, so the Node fallback path (dist/bun-polyfill.cjs) silently inverted the behavior on the one platform the shim exists to serve — every watchdog respawn of the terminal agent popped a visible bun.exe console window. Three sites fixed: - Bun.spawnSync shim: forwards windowsHide with Bun-matching default true - Bun.spawn shim: same (stdio:'ignore' silences output but does NOT suppress the console window on Windows) - spawnTerminalAgent in terminal-agent-control.ts: explicit windowsHide: true, so the Node fallback path behaves like Bun-native An explicit windowsHide: false is honored at both shims. Three focused tests pin the default-true, default-true-sync, and explicit-false paths by intercepting child_process in a subprocess; the test file's require path now uses forward slashes so it survives interpolation into a JS string literal on Windows. Supersedes PRs #2523, #2294 and #2290, which each covered a subset of these sites. Contributed by @jerrynicholsai (PR #2539); earlier fixes by @jwilk-hrep, @rroojrooj and @WimvandenHeijkant covered subsets of the same sites. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(watchdog): signal-0 liveness, tick-scaled respawn guard, windowsHide Three-bug chain behind the Windows terminal-agent leak (console window strobing every 60s, one orphaned agent per watchdog tick until the box ran out of committable memory): 1. isProcessAlive shelled out to `tasklist /FI "PID eq <pid>"` on Windows with a 3s timeout. A Bun.spawnSync that hits its timeout still RETURNS with partial stdout, so the `.includes()` PID match read a LIVE agent as dead — killAgentByRecord skipped the kill, the watchdog respawned around the survivor, and every orphan slowed the next tasklist enough to produce the next false negative. Now: `process.kill(pid, 0)` on every platform (Node and Bun both map signal 0 to an OpenProcess existence check on Windows), with EPERM counted as alive. No subprocess, no timeout, no console window. 2. The respawn circuit-breaker was mathematically unreachable — verified in this tree: RESPAWN_GUARD_WINDOW_MS was a fixed 60_000 against a 60_000ms default tick, and each tick pushes at most one respawn timestamp, so three pushes span ~120s and can never coexist inside a 60s window (eviction is strict `>`, and setInterval drift plus per-tick work always ages the prior entry past the boundary). The guard could not fire at the default tick rate and a steady one-per-tick leak ran unbounded. The window now scales with the tick: max(60_000, tick * (RESPAWN_GUARD_MAX + 2)), so "3 crashes in quick succession → stop" holds at any tick value. 3. The tasklist probe popped a visible console per tick (no windowsHide). Removing the shell-out kills that site; the agent-spawn site itself already passes windowsHide: true (landed with the bun-polyfill windowsHide commit — PR #2414's terminal-agent-control.ts hunk is reconciled there rather than duplicated). New browse/test/process-liveness-windows.test.ts pins all three: no subprocess from the probe, a static tripwire against reintroducing `tasklist` + `PID eq` liveness checks in src/, the spawnTerminalAgent windowsHide + stdio contract, and the window-derived-from-tick arithmetic. terminal-agent-watchdog.test.ts test 4 now pins the window/tick relationship instead of the fixed literal that let this ship. Also converts `new URL(import.meta.url).pathname` to `import.meta.path` across the static-grep tests it touches — the pathname form yields /C:/... on Windows and breaks path.resolve. Contributed by @SYKhayyat (PR #2414). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(terminal-agent): tie agent lifetime to its owning browse server PID The terminal agent is intentionally detached so it survives the short-lived CLI launcher, but its real owner is the persistent browse server. If that server crashed or was killed before running normal shutdown, the agent was adopted by PID 1 and lived forever (#2019). spawnTerminalAgent now requires an ownerPid and exports it to the agent as BROWSE_OWNER_PID; all three spawn sites pass the server PID (cli.ts cold-start, cli.ts supervisor respawn, server.ts watchdog). The agent polls the owner with signal 0 every 15s (GSTACK_TERMINAL_OWNER_WATCHDOG_MS to tune) on an unref'd timer and, when the owner disappears, exits through the SAME cleanup path as an intentional SIGTERM shutdown — now re-entrancy-guarded and also removing the terminal-internal-token file alongside the port file and agent record. Runtime test spawns a real agent tied to a throwaway owner process, kills the owner, and asserts the agent exits and its discovery files (terminal-agent-pid, terminal-port) are gone. Reconciled with the watchdog commit's spawnTerminalAgent contract test (process-liveness-windows.test.ts now passes ownerPid and pins the BROWSE_OWNER_PID env forwarding). Closes #2019. Contributed by @csarigoz (PR #2530). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(windows): give the bun-polyfill spawn shim a real `exited` promise Bun.spawn exposes `proc.exited` as a Promise resolving to the exit code. The Node fallback shim (dist/bun-polyfill.cjs) returned no such field, so every `await proc.exited` on the Windows path resolved instantly to undefined — the Windows cookie picker (cookie-import-browser.ts races proc.exited at three sites) read stdout before the child produced it and silent-failed; browser-skill-commands and terminal-agent hit the same class. The shim now: - drains stdout/stderr eagerly into capped in-memory buffers (Node's Readables are pull-based; without draining, a child writing past the OS pipe buffer blocks in write() and 'exit' never fires), replaying them as fresh single-shot Web ReadableStreams so reads work before or after awaiting exit; - caps the buffer at 16 MB (GSTACK_SPAWN_MAX_BUFFER to override), still draining past the cap so a runaway child can't wedge or OOM; - resolves `exited` with Bun-matching codes (exit code, 128+signal, 1 on spawn error) after both pipes finish, and resolves on 'error' too — Node fires 'error' without 'exit' when the binary is missing, which otherwise hangs the await forever. Six tests pin exit codes, the read-after-exit ordering, spawn-failure resolution, the buffer cap, and the large-output drain. Adapted to the current test file (require path goes through the requirePath variable from the windowsHide commit), and the 1 MB drain test's child now exits in the write callback — on modern Node a pipe write past the OS buffer is async and process.exit() straight after write() truncates at ~64 KB even with a live reader, which fails the test for reasons unrelated to the shim. Contributed by @punksterlabs (PR #1743). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(setup): BROWSE_BIN carries the .exe suffix on Windows On Windows, `bun build --compile` emits browse.exe, but setup's BROWSE_BIN pointed at the suffixless path — so the post-build gate (`[ ! -x "$BROWSE_BIN" ]` → "browse binary missing") could never pass on Windows even after a fully successful build, while the build step itself reported success. Closes #2291. Applied the PR's override after the IS_WINDOWS detection, and also to the second BROWSE_BIN assignment the PR predates: the direct-Codex- install migration path re-derives BROWSE_BIN from the migrated dir and would otherwise drop the suffix again on Windows. Contributed by @rroojrooj (PR #1714). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(setup): link lib/ beside bin/ at all five host-install sites bin/ scripts import shared modules via ../lib (gstack-learnings-log → lib/jsonl-store.ts is the reported case), so any runtime root that exposes bin/ without lib/ breaks 13 bin/ commands — learnings-log, decision-log, telemetry and friends fail with "Cannot find module .../lib/jsonl-store.ts" on every non-Claude install, silently from the skills' perspective. All five host-install sites now carry lib/ next to bin/, each through the existing _link_or_copy helper (never raw ln — the static invariant in test/setup-windows-fallback.test.ts enforces this): - .agents sidecar (create_agents_sidecar asset loop) - Codex runtime root (create_codex_runtime_root) - Factory runtime root (create_factory_runtime_root) - OpenCode runtime root (create_opencode_runtime_root) - Kiro install block New test/setup-runtime-lib-command.test.ts executes the real setup shell for each root in a sandbox (both the symlink branch and the Windows copy branch of _link_or_copy) and runs gstack-learnings-log end-to-end from the installed root, asserting the learning lands in ~/.gstack/projects/<slug>/learnings.jsonl — plus a negative control proving a bin-without-lib root fails exactly the way the bug report did. gen-skill-docs.test.ts's setup-validation block pins the lib link at every site. Cross-checked against PRs #2433, #2410 and #2198: all three cover subsets of these sites; nothing they fix is missing here. Contributed by @fedster99 (PR #2262); overlapping fixes by @gregario, @lsendel and @netkurt. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(setup): ship supabase/config.sh with every host runtime root Distinct from the lib/-beside-bin/ defect: gstack-telemetry-sync, gstack-update-check, gstack-security-dashboard and gstack-community-dashboard all source $GSTACK_DIR/supabase/config.sh to resolve GSTACK_SUPABASE_URL, where GSTACK_DIR is the installed root (parent of bin/). The [ -f ... ] guard means a root without the file degrades SILENTLY — telemetry and update checks just stop resolving the project URL on non-Claude installs. Closes #2215. setup now links supabase/config.sh (file-level on purpose — migrations/ and functions/ are dev-only) via _link_or_copy at all five host-install sites: the PR's four (Codex, Factory, OpenCode runtime roots + the Kiro block) plus the .agents sidecar, whose bin/ resolves the same relative path and which the PR predates covering. The runtime-root test now asserts supabase/config.sh is present in every built root, on both the symlink and Windows-copy branches. Contributed by @jizusun (PR #2216). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * ci(windows): curate the fix-wave regression tests into the windows-latest run The windows-free-tests curated set is derived (POSIX-fragility regex scan + explicit deny list), and two of this wave's Windows regression files were auto-excluded on false-positive pattern hits: - browse/test/file-permissions.test.ts tripped the POSIX-mode-bitmask pattern, but every `mode & 0o777` assertion is platform-guarded — and the file carries the win32-only icacls-by-SID regression tests, which can only ever execute on windows-latest. - browse/test/terminal-agent-owner-watchdog.test.ts tripped the spawn(['bun','run',...]) pattern whose reason is the Playwright-bound browse server; it actually spawns terminal-agent.ts (fs/path/crypto + local helpers only, no Playwright at module scope), and the owner-PID orphan leak it pins was reported on Windows (#2019). Adds a KNOWN_WINDOWS_SAFE force-include list (mirror of KNOWN_WINDOWS_INCOMPATIBLE, each entry carrying its false-positive rationale) consulted before the pattern scan, and makes the owner-watchdog test's throwaway owner process Windows-portable (process.execPath instead of `sleep`, which a bare runner may not have). The wave's other new files need no wiring: process-liveness-windows and the bun-polyfill windowsHide/exited tests pass curation automatically; setup-runtime-lib-command self-skips on win32 by design (its Windows branch is exercised by simulating IS_WINDOWS=1 under bash), so force-including it would add a permanently-skipped file. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(setup): register the SessionStart hook with a bash prefix on Windows Windows can't execute an extensionless bash script directly — registering the bare gstack-session-update path made the hook pop the "Select an app" dialog on every session start (or silently never run), so team-mode auto-upgrade was dead on Windows installs. Companion to the hooks' spawn-bin routing: same defect class at the registration site. Contributed by @NikhileshNanduri (PR #1813; VERSION/CHANGELOG collateral stripped). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(setup): stop piping gen:skill-docs through tail — generator failures were masked setup piped doc generation through `tail -3`, so a generator crash kept the pipe's exit 0 and installs completed "successfully" with broken or missing SKILL.md files. Capture the real exit status at BOTH sites (the main gen:skill-docs step and the gbrain-detected gen:skill-docs:user regen — the second drifted in after the PR and its own test caught it), print the tail for UX, and fail loudly. Contributed by @DavidMiserak (PR #1898; VERSION/CHANGELOG collateral stripped; extended to the second pipe site). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(mktemp): move the X-run to the end of every temp-file template (BSD/busybox safe) BSD mktemp (macOS) does not substitute an X-run that has a suffix after it: `mktemp "$TMP_ROOT/codex-err-XXXXXX.txt"` creates a LITERAL codex-err-XXXXXX.txt on the first call (exit 0) and every later call fails with `mkstemp failed: File exists` — so /codex breaks from the SECOND run on every Mac, masquerading as a model stall. busybox mktemp (Alpine) rejects the template on the first run. Fixes #2091, #2370. Union of both community fixes, compared at the diff level: - PR #2372: all 11 source sites with a suffix after the X-run — codex SKILL.md.tmpl (5), claude SKILL.md.tmpl (3), bin/gstack-developer-profile (2, suffix folded into the prefix: .json.tmp.XXXXXX), and the office-hours codex pass in scripts/resolvers/review.ts (1). - PR #2103: the second half of #2091 — bin/gstack-paths now strips the trailing slash from TMP_ROOT at the source (macOS $TMPDIR ends in `/`), plus runtime tests pinning that normalization. New repo-wide tripwire in test/regression-issue2091-bsd-mktemp.test.ts: every .tmpl, every SKILL.md, and every scripts/resolvers/*.ts is swept — no mktemp template may carry a suffix after the X-run, with a self-test so the detector can't be quietly blinded. Generated SKILL.md files regenerated via gen:skill-docs in this commit. Contributed by @ShuratCode (PR #2103) and @noron12234 (PR #2372); PR #2285 by @cathrynlavery covered a subset. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(codex,review,ship): scope codex review with an explicit --base flag, never prompt text `codex review` takes its scope ONLY from --base/--commit/--uncommitted. The positional [PROMPT] is mutually exclusive with all three, and a prompt-only `codex review "<text>"` silently falls back to the uncommitted working-tree scope (verified on 0.144.1: it runs `git status --short; git diff` and reviews that) — so the previous prompt-based scoping produced a confidently-worded review of the WRONG changes and read "no changes" on a clean tree. Every diff pass now invokes `codex review --base <base>` with no prompt argument: /codex Step 2A default path, the /review structured pass, and the /ship adversarial-section pass (all via scripts/resolvers/review.ts). Custom review instructions keep their own `codex exec` path (the CLI rejects prompt + scope flag together), with the filesystem boundary preserved there. Two new Error Handling entries teach the failure shapes: the argv-parse error, and the "review says no changes on a branch full of changes" symptom. Tests updated to pin the new invariant instead of banning the fix: the old assertions required the diff range in prompt text and banned the `--base <base> -c '...'` substring, which the correct scoped form contains. Also deletes test/fixtures/golden-ship-claude.md — a 2,565-line orphaned fixture referenced by zero tests (the live goldens are in test/fixtures/golden/, compared by test/host-config.test.ts); the factory golden is refreshed from the regenerated output. Generated SKILL.md files regenerated via gen:skill-docs in this commit. Contributed by @fangearhq-boop (PR #2513). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(review,ship): run the codex diff passes under the timeout wrapper (#1036) The `_gstack_codex_timeout_wrapper` added in #1056 was wired into codex/SKILL.md but never into the /review and /ship diff passes, which kept running under a bare 5-minute Bash gate. An unwrapped stall returns no exit code and no output, which downstream reads as "Codex reviewed and found nothing" — a truncated pass silently became a clean bill. Measured on codex-cli 0.145.0: a pass was killed at 287s of a 300s budget mid-tool-call, and the same prompt completed in 336s. Both passes in scripts/resolvers/review.ts (adversarial `codex exec` and the structured `codex review --base` pass) now re-source gstack-codex-probe and run under `_gstack_codex_timeout_wrapper 540`, with the Bash tool gate raised to 600000 ms so the wrapper fires FIRST and a stall surfaces as a diagnosable exit 124. The timeout guidance now says a timed-out pass is MISSING COVERAGE, not a clean result, and points at the run's rollout log under ~/.codex/sessions/ for partial output. The stale "timeout doesn't exist on macOS" claim is gone — the wrapper resolves gtimeout, then timeout, then runs unwrapped, so it is safe without coreutils. Static guards in test/codex-hardening.test.ts pin all three sites (resolver, review/SKILL.md, ship/sections/adversarial.md): both calls wrapped, wrapper budget strictly under the Bash gate, and no reappearance of the macOS claim that steered these call sites away from the wrapper in the first place. The Claude-output path guard in test/gen-skill-docs.test.ts now scrubs ~/.codex/sessions/ (a user-facing Codex CLI path, same class as the ~/.codex/logs/ exemption) before banning Codex host paths. Generated files regenerated via gen:skill-docs; factory golden refreshed. Contributed by @aegixx (PR #2379). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(codex): sandbox the review path, fail the gate closed, order timeouts wrapper-first Closes #2496, #2524, #2477 — three defects in the class "a guard that reports success while doing nothing", all in codex/SKILL.md.tmpl: (a) Review sandbox. The default `codex review` path was the only codex call with no sandbox override, inheriting ~/.codex/config.toml's default — write access on a trusted project — while Important Rules claimed read-only. Top-level `codex review` has no -s/--sandbox flag (verified on 0.147.0), so the invocation now pins `-c 'sandbox_mode="read-only"'`, the same form the consult-resume path already uses. (b) Fail-closed verdict gate. The old rule ("no [P1] found → PASS") could not fail on the default path: native `codex review` output carries no bracketed tags, and a non-zero exit, expired auth, timeout, or empty result also contains no [P1] — all read as PASS. The gate is now an ordered, fail-closed check: non-zero exit → FAIL; empty output → FAIL; [P0]/[P1] (bracketed or codex's native labels) → FAIL with count; NO severity tags at all → FAIL requiring a human read; PASS is only reachable through the explicit tagged-advisory-only branch. [P0] is recognized as blocking, and the review-log findings count includes it. (c) Bash gate above the wrapper. Step 2A instructed `timeout: 300000` under a 330s wrapper, and Challenge's 300s gate sat under a 600s wrapper — the harness killed the call before the wrapper could emit its diagnosable exit-124 message. Every Bash gate now sits strictly ABOVE its wrapper: 360000 over the 330s review wrapper, 660000 over the 600s challenge/consult wrappers, with the ordering rationale stated at each site. Also from #2477/#2524: a new Error Handling entry for the model-entitlement 400 ("The '<model>' model is not supported...") pointing at the `model =` pin and `[notice.model_migrations]` in ~/.codex/config.toml and saying exactly which override to retry with (-m for exec-based modes, `-c model="..."` for review mode, which rejects -m); the Model & Reasoning section no longer documents `-m` for `/codex review`. Static assertions in test/codex-hardening.test.ts pin (a)-(c) across both the .tmpl and the generated SKILL.md: every scoped review invocation carries sandbox_mode="read-only" and never -s; the default-PASS sentence is banned and the fail-closed branches are present; and per-section, every Bash `timeout: N` is strictly greater than every wrapper budget, with 2A/2B/2C all required to be inspected. Generated SKILL.md regenerated via gen:skill-docs in this commit. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(preamble): quoted tilde made Artifacts Sync and telemetry-finalize dead code in 49 skills A tilde inside double quotes never expands, so the generated `_BRAIN_SYNC_BIN="~/..."` assignments resolved to a literal ./~ path and the Artifacts Sync + telemetry-finalize blocks silently no-op'd in every skill that carried them (regression of #785). The preamble resolvers now emit $HOME-based paths; all generated SKILL.md files regenerate identically from the fixed templates, and a static tripwire fails the suite if a quoted-tilde assignment ever reappears in generated output. Fixes #1656, #1715. Contributed by @jawadakram20 (PR #2333). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(gen-skill-docs): stop the catalog trim chopping descriptions at embedded periods The description-trim regex treated the first period as end-of-sentence, so skill descriptions with embedded periods (e.g. file extensions, version numbers) truncated mid-thought in the generated catalog — the discovery surface every host loads. Trim now respects the full first sentence; diagram's description regenerates to its intended text. Contributed by @sneakygriff (PR #2171). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(preamble): update_check:false gates the prose, not just the binary Setting update_check:false stopped the update-check BINARY from running, but every skill preamble still shipped the upgrade-handling instruction prose unconditionally — burning tokens on instructions that could never fire and confusing agents into probing for upgrades anyway. The resolver now suppresses the upgrade-flow prose when the config disables checks. Fixes #2001. Contributed by @jc0d35 (PR #2022). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(browse): sidebar Terminal — drop the duplicate WS subprotocol header, stop doubling CJK IME input The terminal client passed the auth token as the WS subprotocol AND echoed it in a second header, which some Chromium builds reject; and composition events double-sent CJK input (each IME commit arrived once from the composition handler and once from the data handler). One auth path, one input path; also fixes the terminal-agent test that failed on clean main. Contributed by @mindsurf0176 (PR #2515). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(setup): -h/--help prints usage instead of running the installer Asking setup for help RAN the full installer — Playwright download and all. Standard help flags now short-circuit to usage. Contributed by @saen-ai (PR #1219). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(hosts): Codex-generated skills reference AGENTS.md, not CLAUDE.md Codex reads AGENTS.md, but its generated skills still told agents to read CLAUDE.md in 8 places — instructions Codex hosts cannot follow. The host config now maps the memory-file name per host; all three ship goldens refreshed from the regenerated output. Contributed by @exGeni (PR #1996). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(retro,ship): count tracked files for the test-file metric, not the working tree The test-file count ran find over the working tree, sweeping untracked build output — a Rails repo reported 623 test files when git tracks 17 (37x), skewing retro narratives and ship dashboards. Count via git ls-files instead; includes the one-line Python-glob widening so non-JS repos stop undercounting. Fixes #2307, #1999. Contributed by @joshRpowell (PR #2308). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(land-and-deploy,gen): auto-merge diagnosis + CRLF-stable generation Two small hardenings: land-and-deploy Step 4 no longer misdiagnoses a failed `gh pr merge --auto` as a permissions problem when the real cause is the merge-method mismatch the command names; and gen-skill-docs normalizes CRLF at the template entry point so Windows checkouts with autocrlf produce byte-identical generated output to CI instead of silently skipping the \n-anchored transforms. Contributed by @Jmeg8r (PR #2437) and @1ncludeSteven (PR #1051). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(land-and-deploy): stop greedy sed from eating the URL scheme in deploy-config parsing The deploy-config bootstrap parsed "Production URL: https://x.com" with sed 's/.*: *//', which cuts at the LAST colon — the one in "https:" — yielding "//x.com". Cut at the first ": " instead (s/^[^:]*: *//). Resolver only; the generated land-and-deploy/SKILL.md regenerates from this source in the docs lane. Contributed by @briascoi (PRs #2555/#2493). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(artifacts-init): honor the provider CLI's git_protocol instead of forcing SSH gstack-artifacts-init unconditionally rewrote the push remote to SSH and hard-failed setup for users whose gh/glab auth is HTTPS-only. Now: - provider-created remotes follow `gh config get git_protocol` / `glab config get git_protocol` (HTTPS when unset — the gh default) - explicit/existing/manual remotes keep their given protocol; unknown URL forms (local bare paths, file://, self-hosted) pass through - new --push-protocol auto|https|ssh flag overrides the inference - the unreachable-remote error names the actual protocol and points at --push-protocol instead of assuming a missing SSH key Closes #1348. Contributed by @time-attack (PR #2225). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(browse): skip the .gitignore append when git already ignores .gstack/ ensureStateDir appended ".gstack/" to a tracked .gitignore even when git already ignored the directory via global excludes, .git/info/exclude, or a parent .gitignore — dirtying the working tree on every daemon start. Run `git check-ignore -q -- .gstack/` first and return early when git says it's covered; git-missing/not-a-repo/timeout all fall through to the existing text-check append (the safe default). Closes #2385. Contributed by @gregario (PR #2430). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(browse): guard browser.process() in resolveDisconnectCause `.process()` only exists on browsers Playwright launched itself; a browser from connectOverCDP() (or a test stub) has no such method, so the blind call threw "browser?.process is not a function" inside the disconnect handler and took down the daemon. Type-check the method before calling it and treat the no-method case as no process handle. Closes #2085. Contributed by @elan2002 (PR #2434). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(lib): narrow the override injection denylist to instruction-shaped phrases The /override[:\s]/i pattern flagged any prose containing "override " or "override:" — CLI flags (--port-override -1), tfvars notes, and plain "you can override the default region" all tripped the injection guard. Require an instruction-shaped continuation: "override (all)? previous | prior | above | the rules/instructions/system prompt". Genuine attempts like "Override: ignore all previous instructions" still block via the ignore-previous pattern. Closes #2401, #1934. Contributed by @Masashi-Ono0611 (PR #2424); same fix independently by @JonasFocus (PR #1940). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(redact): stop the E.164 phone pattern flagging compact timestamps Bare 14-digit runs like 20260727202423 (YYYYMMDDHHMMSS backup/log stamps) matched the phone regex and produced MEDIUM PII findings. Reject a separator-free 14-digit span whose fields parse as a plausible date-time; real numbers carry a + or spacing, so phone coverage is unchanged. Contributed by @abkrim (PR #2428). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(design): create the OpenAI key file owner-only, closing the write-then-chmod race saveApiKey wrote ~/.gstack/openai.json at the default umask and tightened to 0600 afterwards, leaving the API key briefly world-readable between write and chmod (CWE-377/367). Pass mode 0o600 at create; the trailing chmodSync stays as a backstop to tighten a pre-existing loose file. Contributed by @bunlongheng (PR #2468). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(config): make gstack-config key validation locale-independent POSIX bracket ranges like a-z follow the active collation order; under GNU grep with tr_TR.UTF-8 the range excludes the ASCII letter i, so every key containing i (skill_prefix, explain_level, ...) was rejected as invalid. Pin both get/set validators to LC_ALL=C, with a source-level tripwire test since macOS BSD grep doesn't reproduce the bug. Closes #2494. Contributed by @Math1987 (PR #2506). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(resolvers): stop env-var hosts from doubling $HOME in the binary fallback path The browse/design/make-pdf setup resolvers built the fallback binary path as "$HOME" + dir.replace(/^~/, ''), which is only correct for ~-rooted dirs. Env-var hosts carry an absolute $GSTACK_* dir, so the generated fallback became $HOME$GSTACK_.../browse — a path that never exists. New toShellPath() in scripts/resolvers/types.ts expands ~ to $HOME and passes absolute env-var dirs through untouched; all five call sites route through it. Claude-host generated output is byte-identical, so no SKILL.md regeneration is needed here. Closes #2055. Contributed by @simjak (PR #2056). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(settings-hook): respect CLAUDE_CONFIG_DIR when resolving settings.json gstack-settings-hook hardcoded $HOME/.claude/settings.json, so users running Claude Code with a relocated CLAUDE_CONFIG_DIR had hooks written to a config file Claude never reads. Resolve ${CLAUDE_CONFIG_DIR:-$HOME/.claude} first; the explicit GSTACK_SETTINGS_FILE override still wins. Partial #349. Contributed by @andrefogelman (PR #2239). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(browse): dispatch a change event after fill for change-only validators Playwright's Locator.fill() dispatches `input` but never `change`, so frameworks that validate on change (AngularJS ng-change, debounced strength/match checks) never saw the filled value — correct in the DOM, failing the framework's own validation. `browse fill` now dispatches `change` after the fill. Failing-first regression test with a change-only password-match fixture included. Contributed by @intelliot (PR #2475). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(safety): unknown question-preference source exits the documented 2, not 1 The --write user-origin gate documents exit 2 as "rejected, do not retry" (profile poisoning defense), but a source outside both the allowed and the explicitly-rejected lists fell through to exit 1 — the generic validation code callers treat as retryable. Unknown sources now exit 2 with the same do-not-retry rejection message as the known non-user-originated ones. Closes #2390. Contributed by @gregario (PR #2429). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(pr-title): stop duplicating the version prefix on bare-version titles A title that was nothing but a version ("v1.2.3" — the form ship uses for version-only bumps) matched neither the "v<NEW_VERSION> " literal case nor the trailing-space strip regex, fell through to the prepend path, and came out as "v1.2.3.4 v1.2.3" — which pr-title-sync.yml then wrote back via gh pr edit. Handle the bare form in both the no-change case and the prefix-strip regex, and emit a bare new version when nothing follows. Closes #1886. Contributed by @jbetala7 (PR #1887). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(build): escape literal braces in the bun:sqlite stub regex Perl >= 5.26 treats an unescaped literal `{` in a pattern as fatal ("Unescaped left brace in regex is illegal"), so build-node-server.sh died at the bun:sqlite stub substitution on modern perl. Escape both braces; the replacement output is unchanged. Closes #2300. Contributed by @nuga0718 (PR #2111). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(config): preserve spaces in gstack-config values get/list read values with awk '{print $2}' | tr -d '[:space:]', which truncated any value containing spaces ("/Users/x/Conductor Workspaces" came back as "/Users/x/Conductor") and set wrote the unfiltered raw value on the append path. New read_config_value() strips only the "key:" prefix and trailing whitespace (cut-style parse), and set appends the same newline-stripped value the in-place edit path uses. Closes #1782. Contributed by @jbetala7 (PR #1783). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(browse): recover a late-healthy detached daemon instead of a false "Server failed to start" startServer spawns the daemon detached + unref'd, then polls health for a fixed budget. On a loaded machine the budget can elapse in the gap between the loop's last tick and the daemon becoming ready — the CLI reported "Server failed to start within Ns" while the very next `browse status` showed a healthy server. Add a final readState()+isServerHealthy() re-check before the timeout throw, and make the budget env-overridable via BROWSE_START_TIMEOUT (BROWSE_* tunable convention). Structural + behavioral tests pin both invariants. Closes #1846. Contributed by @harjothkhara (PR #1847). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(browse): daemon resilience on loaded machines — Bun conn errors, stop/restart flush, startup + git-root budgets Four load-sensitivity fixes in the daemon lifecycle: - sendCommand only recognized Node's ECONNREFUSED/ECONNRESET; the compiled CLI runs on Bun, which reports 'ConnectionRefused'/'ConnectionClosed' ("Unable to connect..."), so daemon crashes leaked the raw error and exited 1 instead of entering the busy-check/restart path. Match both. - stop/restart called shutdown() inline, which exits before the HTTP response flushes — the CLI saw a dropped socket (and would now crash-retry a fresh daemon just to stop it). Defer shutdown ~100ms so the 200 lands first. - Non-CI POSIX startup budget raised 8s -> 15s (cold Chromium measured ~5.7s at load avg 10; load 12+ blew the old budget while the detached daemon was still booting). - getGitRoot's 2s git rev-parse timeout returned null under load (6.3s spikes measured), scattering state files across cwds into split-brain daemons. Raise to 8s, still bounded. Contributed by @mplatts (PR #1732). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(telemetry): ingest keeps error_message/failed_step instead of dropping them The telemetry_events columns exist and bin/gstack-telemetry-log already sends error_message + failed_step, but the Supabase ingest function dropped both fields on insert — every error report arrived with no message and no failing step. Map them through with the same bounded-length sanitization as error_class (500/100 chars). The completion-status resolver now also passes --error-message/--failed-step in the generated skill telemetry block, with instructions to leave them empty on success. Resolver only for the template side; generated SKILL.md files regenerate from this source in the docs lane. Contributed by @sunnnybala (PR #769). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(browse): surface non-EEXIST errors in acquireServerLock instead of masking them acquireServerLock caught every open failure as if the lock were held: EACCES/EROFS/ENOENT surfaced as phantom "another process holds the lock" (null return, no diagnostics), and a failed stale-lock read or unlink was swallowed the same way. Each failure class now logs a coded, pathed diagnostic: non-EEXIST open errors, holder-PID read errors (ENOENT retries the acquire — the holder released between open and read), and stale-lock unlink errors. Four-case unit test included. Closes #1084. Contributed by @jbetala7 (PR #1725); same fix independently by @JiayuuWang (PR #1097). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(paths): shell-quote gstack-paths output so eval round-trips values gstack-paths emitted bare KEY=VALUE lines, so the documented eval "$(gstack-paths)" re-parsed the values: backslashes were eaten as escapes (Windows $TMP C:\Users\... became C:Users...) and a space word-split the assignment, leaving the variable empty. Emit each value with printf %q so eval round-trips byte-for-byte; plain POSIX paths are unchanged. Round-trip regression tests cover backslashes, spaces, and embedded quotes. Closes #2374. Contributed by @fangearhq-boop (PR #2376); same fix independently by @yannickspiess (PR #1580). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * security(browse): drop .svg from the load-html extension allowlist SVG is a script-capable format (inline <script>, event handlers, foreign objects), so allowing it through load-html's HTML allowlist let a local .svg execute script in the browse session context. The allowlist is now .html/.htm/.xhtml only; regression test asserts .svg is rejected. Contributed by @garagon (PR #1153). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(benchmark): validate --timeout-ms as a positive integer gstack-model-benchmark fed --timeout-ms straight through parseInt, so "abc" became NaN and "0"/"-1" passed through — a NaN or non-positive timeout silently disables the per-provider watchdog. Reject anything that isn't a positive (optionally +-prefixed) safe integer with a clear error and exit 1. Closes #1726. Contributed by @jbetala7 (PR #1727). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * chore(fixtures): clean terminology in the security-bench replay fixture Two spots in browse/test/fixtures/security-bench-haiku-responses.json referred to real-world HVAC project naming; replace with the generic "mechanical services" wording. Fixture stays valid JSON; replay tests unchanged. Contributed by @apex-system (PR #2131). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * ci: cancel superseded actionlint and skill-docs runs actionlint.yml and skill-docs.yml trigger on both push and pull_request with no concurrency group, so every push to an active branch left the previous (now-obsolete) runs queued or running — twice per commit on same-repo PR branches. Add the same cancel-in-progress concurrency groups the heavier workflows already use, plus a free static tripwire test that fails CI if a push+pull_request workflow ever ships again without cancel-in-progress. Contributed by @jbetala7 (PR #2053). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(make-pdf): correct CJK rendering — NUL sentinel hardening, SC-first fonts, CJK quote context Three CJK fixes in the PDF pipeline: - smartypants strips stray input NULs up front so document text can never forge the U+0000 placeholder sentinel and leak a preserved-zone marker into the output. - The CJK font stack led with Japanese families, so Simplified-Chinese text rendered han glyphs with JP variants. Lead with PingFang SC / Heiti SC / Noto Sans CJK SC / Source Han Sans SC before the JP fallbacks. - Quote-smartening only recognized ASCII openers as "start of quote" context; the fullwidth colon and CJK brackets now count, so quotes after them curl the right way. Contributed by @rssprivacy-commits (PR #2012). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * docs: regenerate skill output for the quick-win resolver changes Regen for the deploy-config URL-scheme fix (utility resolver), telemetry completion-status resolver, and $HOME-doubling binary-resolver fix; ship goldens refreshed to match. Generated-output-only commit. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(slug): cached identity is sticky — heal ONLY the provable subdir-cache bug shape The walk-up rewrite recomputed the slug on every run and "healed" the cache toward the fresh value, which broke the #2212 continuity contract: a project that used gstack before adopting a git remote would be silently renamed to the remote-derived slug, orphaning everything under ~/.gstack/projects/. Cached identity now wins, with one precise exception: when the cached value equals THIS pwd's basename while the walk-up proves pwd is not the project root, the entry came from the pre-walk-up subdirectory bug (#1125) and is recomputed. All four slug contracts pass together (repo-mode #2212, walk-up #1125, sanitize, user-slug). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(claude): stop false-blocking macOS keychain subscription auth in host detection The /claude skill's auth probe only recognized env-var/API-key auth, so macOS subscription installs (keychain-backed, where `claude -p` works fine) were told they had no auth. Detection now uses host invocation. Fixes #1890. Contributed by @xing-qnex (PR #2411); PR #2548 by @shawnacalia covered the keychain case. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(setup): Ubuntu 26.04 Playwright platform detect + silence the codesign false alarm Two small setup papercuts: the Playwright platform probe now recognizes Ubuntu 26.04 instead of falling to the generic-Linux path, and macOS installs stop warning about a codesign "failure" that was actually the expected unsigned-adhoc path (the real signature check already gates binary launch). Contributed by @nuga0718 (PR #2113) and @lucascaro (PR #1758). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(skills): land-and-deploy squash readback, next-version paths, embed-flags quoting Three template one-liners: land-and-deploy reads the squash-merge result from the merge commit instead of the stale branch tip; review/landing-report /land-and-deploy templates call bin/gstack-next-version via its installed path instead of a bare repo-relative one; setup-gbrain quotes GBRAIN_EMBED_FLAGS so zsh word-splitting stops silently dropping voyage-code-3 flags. Regenerated output included. Contributed by @stormeoio (PR #2011), @rjmurillo (PR #1820) and @trevorhstandridge (PR #1817). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * release: v1.64.0.0 — fix wave CHANGELOG, VERSION, deferred-wave TODOs Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * test: refresh ship goldens for the telemetry error-field resolver output Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * test(redact-prepush): assemble the fake AWS key at runtime — the literal blocked our own push The hook's fixtures carried a live-format AKIA literal, and the repo's own pre-push scanner (hardened in this wave) correctly blocked pushing it. The placeholder-suppressed docs key would defeat the detection tests, so the fixtures now concatenate the key at runtime: tests still exercise real detection, and the pushed diff never contains a scannable credential shape. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(slug): terminate the marker walk-up on dirname's fixed point — hung every bin on Windows Under git-bash on Windows a mixed-form path walks C:/Users -> C: -> . -> . forever: dirname's fixed point there is never "/", so the walk-up loop spun and every bin that evals gstack-slug (learnings-log first among them) hung until spawn timeout. Caught by windows-free-tests CI on the wave PR. Break on the fixed point itself with a depth cap for exotic forms; regression tests drive the extracted function with hostile path shapes under a hard timeout. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com> |
||
|---|---|---|
| .github | ||
| agents | ||
| autoplan | ||
| benchmark | ||
| benchmark-models | ||
| bin | ||
| browse | ||
| browser-skills/hackernews-frontpage | ||
| canary | ||
| careful | ||
| claude | ||
| codex | ||
| context-restore | ||
| context-save | ||
| contrib/add-host | ||
| cso | ||
| design | ||
| design-consultation | ||
| design-html | ||
| design-review | ||
| design-shotgun | ||
| devex-review | ||
| diagram | ||
| docs | ||
| document-generate | ||
| document-release | ||
| extension | ||
| freeze | ||
| gstack | ||
| gstack-upgrade | ||
| guard | ||
| health | ||
| hosts | ||
| investigate | ||
| ios-clean | ||
| ios-design-review | ||
| ios-fix | ||
| ios-qa | ||
| ios-sync | ||
| land-and-deploy | ||
| landing-report | ||
| learn | ||
| lib | ||
| make-pdf | ||
| model-overlays | ||
| office-hours | ||
| open-gstack-browser | ||
| openclaw | ||
| pair-agent | ||
| plan-ceo-review | ||
| plan-design-review | ||
| plan-devex-review | ||
| plan-eng-review | ||
| plan-tune | ||
| qa | ||
| qa-only | ||
| retro | ||
| review | ||
| scrape | ||
| scripts | ||
| setup-browser-cookies | ||
| setup-deploy | ||
| setup-gbrain | ||
| ship | ||
| skillify | ||
| spec | ||
| supabase | ||
| sync-gbrain | ||
| test | ||
| unfreeze | ||
| .env.example | ||
| .gitattributes | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| AGENTS.md | ||
| ARCHITECTURE.md | ||
| BROWSER.md | ||
| CHANGELOG.md | ||
| CLAUDE.md | ||
| CONTRIBUTING.md | ||
| DESIGN.md | ||
| ETHOS.md | ||
| LICENSE | ||
| README.md | ||
| SKILL.md | ||
| SKILL.md.tmpl | ||
| TODOS.md | ||
| USING_GBRAIN_WITH_GSTACK.md | ||
| VERSION | ||
| bun.lock | ||
| bunfig.toml | ||
| conductor.json | ||
| connect-chrome | ||
| package.json | ||
| setup | ||
| slop-scan.config.json | ||
| test-setup.ts | ||
README.md
gstack
"I don't think I've typed like a line of code probably since December, basically, which is an extremely large change." — Andrej Karpathy, No Priors podcast, March 2026
When I heard Karpathy say this, I wanted to find out how. How does one person ship like a team of twenty? Peter Steinberger built OpenClaw — 247K GitHub stars — essentially solo with AI agents. The revolution is here. A single builder with the right tooling can move faster than a traditional team.
I'm Garry Tan, President & CEO of Y Combinator. I've worked with thousands of startups — Coinbase, Instacart, Rippling — when they were one or two people in a garage. Before YC, I was one of the first eng/PM/designers at Palantir, cofounded Posterous (sold to Twitter), and built Bookface, YC's internal social network.
gstack is my answer. I've been building products for twenty years, and right now I'm shipping more products than I ever have. In the last 60 days: 3 production services, 40+ shipped features, part-time, while running YC full-time. On logical code change — not raw LOC, which AI inflates — my 2026 run rate is ~810× my 2013 pace (11,417 vs 14 logical lines/day). Year-to-date (through April 18), 2026 has already produced 240× the entire 2013 year. Measured across 40 public + private garrytan/* repos including Bookface, after excluding one demo repo. AI wrote most of it. The point isn't who typed it, it's what shipped.
The LOC critics aren't wrong that raw line counts inflate with AI. They are wrong that normalized-for-inflation, I'm less productive. I'm more productive, by a lot. Full methodology, caveats, and reproduction script: On the LOC Controversy.
2026 — 1,237 contributions and counting:
2013 — when I built Bookface at YC (772 contributions):
Same person. Different era. The difference is the tooling.
gstack is how I do it. It turns Claude Code into a virtual engineering team — a CEO who rethinks the product, an eng manager who locks architecture, a designer who catches AI slop, a reviewer who finds production bugs, a QA lead who opens a real browser, a security officer who runs OWASP + STRIDE audits, and a release engineer who ships the PR. Twenty-three specialists and eight power tools, all slash commands, all Markdown, all free, MIT license.
This is my open source software factory. I use it every day. I'm sharing it because these tools should be available to everyone.
Fork it. Improve it. Make it yours. And if you want to hate on free open source software — you're welcome to, but I'd rather you just try it first.
Who this is for:
- Founders and CEOs — especially technical ones who still want to ship
- First-time Claude Code users — structured roles instead of a blank prompt
- Tech leads and staff engineers — rigorous review, QA, and release automation on every PR
Quick start
- Install gstack (30 seconds — see below)
- Run
/office-hours— describe what you're building - Run
/plan-ceo-reviewon any feature idea - Run
/reviewon any branch with changes - Run
/qaon your staging URL - Stop there. You'll know if this is for you.
Install — 30 seconds
Requirements: Claude Code, Git, Bun v1.0+, Node.js (Windows only)
Step 1: Install on your machine
Open Claude Code and paste this. Claude does the rest.
Install gstack: run
git clone --single-branch --depth 1 https://github.com/garrytan/gstack.git ~/.claude/skills/gstack && cd ~/.claude/skills/gstack && ./setupthen add a "gstack" section to CLAUDE.md that says to use the /browse skill from gstack for all web browsing, never use mcp__claude-in-chrome__* tools, and lists the available skills: /office-hours, /plan-ceo-review, /plan-eng-review, /plan-design-review, /design-consultation, /design-shotgun, /design-html, /review, /ship, /land-and-deploy, /canary, /benchmark, /browse, /connect-chrome, /qa, /qa-only, /design-review, /setup-browser-cookies, /setup-deploy, /setup-gbrain, /retro, /investigate, /document-release, /document-generate, /codex, /cso, /autoplan, /plan-devex-review, /devex-review, /careful, /freeze, /guard, /unfreeze, /gstack-upgrade, /learn. Then ask the user if they also want to add gstack to the current project so teammates get it.
Step 2: Team mode — auto-update for shared repos (recommended)
From inside your repo, paste this. Switches you to team mode, bootstraps the repo so teammates get gstack automatically, and commits the change:
(cd ~/.claude/skills/gstack && ./setup --team) && ~/.claude/skills/gstack/bin/gstack-team-init required && git add .claude/ CLAUDE.md && git commit -m "require gstack for AI-assisted work"
No vendored files in your repo, no version drift, no manual upgrades. Every Claude Code session starts with a fast auto-update check (throttled to once/hour, network-failure-safe, completely silent).
Swap required for optional if you'd rather nudge teammates than block them.
OpenClaw
OpenClaw spawns Claude Code sessions via ACP, so every gstack skill just works when Claude Code has gstack installed. Paste this to your OpenClaw agent:
Install gstack: run
git clone --single-branch --depth 1 https://github.com/garrytan/gstack.git ~/.claude/skills/gstack && cd ~/.claude/skills/gstack && ./setupto install gstack for Claude Code. Then add a "Coding Tasks" section to AGENTS.md that says: when spawning Claude Code sessions for coding work, tell the session to use gstack skills. Include these examples — security audit: "Load gstack. Run /cso", code review: "Load gstack. Run /review", QA test a URL: "Load gstack. Run /qa https://...", build a feature end-to-end: "Load gstack. Run /autoplan, implement the plan, then run /ship", plan before building: "Load gstack. Run /office-hours then /autoplan. Save the plan, don't implement."
After setup, just talk to your OpenClaw agent naturally:
| You say | What happens |
|---|---|
| "Fix the typo in README" | Simple — Claude Code session, no gstack needed |
| "Run a security audit on this repo" | Spawns Claude Code with Run /cso |
| "Build me a notifications feature" | Spawns Claude Code with /autoplan → implement → /ship |
| "Help me plan the v2 API redesign" | Spawns Claude Code with /office-hours → /autoplan, saves plan |
See docs/OPENCLAW.md for advanced dispatch routing and the gstack-lite/gstack-full prompt templates.
Native OpenClaw Skills (via ClawHub)
Four methodology skills that work directly in your OpenClaw agent, no Claude Code session needed. Install from ClawHub:
clawhub install gstack-openclaw-office-hours gstack-openclaw-ceo-review gstack-openclaw-investigate gstack-openclaw-retro
| Skill | What it does |
|---|---|
gstack-openclaw-office-hours |
Product interrogation with 6 forcing questions |
gstack-openclaw-ceo-review |
Strategic challenge with 4 scope modes |
gstack-openclaw-investigate |
Root cause debugging methodology |
gstack-openclaw-retro |
Weekly engineering retrospective |
These are conversational skills. Your OpenClaw agent runs them directly via chat.
Other AI Agents
gstack works on 10 AI coding agents, not just Claude. Setup auto-detects which agents you have installed:
git clone --single-branch --depth 1 https://github.com/garrytan/gstack.git ~/gstack
cd ~/gstack && ./setup
Or target a specific agent with ./setup --host <name>:
| Agent | Flag | Skills install to |
|---|---|---|
| OpenAI Codex CLI | --host codex |
~/.codex/skills/gstack-*/ |
| OpenCode | --host opencode |
~/.config/opencode/skills/gstack-*/ |
| Cursor | --host cursor |
~/.cursor/skills/gstack-*/ |
| Factory Droid | --host factory |
~/.factory/skills/gstack-*/ |
| Slate | --host slate |
~/.slate/skills/gstack-*/ |
| Kiro | --host kiro |
~/.kiro/skills/gstack-*/ |
| Hermes | --host hermes |
~/.hermes/skills/gstack-*/ |
| GBrain (mod) | --host gbrain |
~/.gbrain/skills/gstack-*/ |
Want to add support for another agent? See docs/ADDING_A_HOST.md. It's one TypeScript config file, zero code changes.
See it work
You: I want to build a daily briefing app for my calendar.
You: /office-hours
Claude: [asks about the pain — specific examples, not hypotheticals]
You: Multiple Google calendars, events with stale info, wrong locations.
Prep takes forever and the results aren't good enough...
Claude: I'm going to push back on the framing. You said "daily briefing
app." But what you actually described is a personal chief of
staff AI.
[extracts 5 capabilities you didn't realize you were describing]
[challenges 4 premises — you agree, disagree, or adjust]
[generates 3 implementation approaches with effort estimates]
RECOMMENDATION: Ship the narrowest wedge tomorrow, learn from
real usage. The full vision is a 3-month project — start with
the daily briefing that actually works.
[writes design doc → feeds into downstream skills automatically]
You: /plan-ceo-review
[reads the design doc, challenges scope, runs 10-section review]
You: /plan-eng-review
[ASCII diagrams for data flow, state machines, error paths]
[test matrix, failure modes, security concerns]
You: Approve plan. Exit plan mode.
[writes 2,400 lines across 11 files. ~8 minutes.]
You: /review
[AUTO-FIXED] 2 issues. [ASK] Race condition → you approve fix.
You: /qa https://staging.myapp.com
[opens real browser, clicks through flows, finds and fixes a bug]
You: /ship
Tests: 42 → 51 (+9 new). PR: github.com/you/app/pull/42
You said "daily briefing app." The agent said "you're building a chief of staff AI" — because it listened to your pain, not your feature request. Eight commands, end to end. That is not a copilot. That is a team.
The sprint
gstack is a process, not a collection of tools. The skills run in the order a sprint runs:
Think → Plan → Build → Review → Test → Ship → Reflect
Each skill feeds into the next. /office-hours writes a design doc that /plan-ceo-review reads. /plan-eng-review writes a test plan that /qa picks up. /review catches bugs that /ship verifies are fixed. Nothing falls through the cracks because every step knows what came before it.
| Skill | Your specialist | What they do |
|---|---|---|
/office-hours |
YC Office Hours | Start here. Six forcing questions that reframe your product before you write code. Pushes back on your framing, challenges premises, generates implementation alternatives. Design doc feeds into every downstream skill. |
/plan-ceo-review |
CEO / Founder | Rethink the problem. Find the 10-star product hiding inside the request. Four modes: Expansion, Selective Expansion, Hold Scope, Reduction. |
/plan-eng-review |
Eng Manager | Lock in architecture, data flow, diagrams, edge cases, and tests. Forces hidden assumptions into the open. |
/plan-design-review |
Senior Designer | Rates each design dimension 0-10, explains what a 10 looks like, then edits the plan to get there. AI Slop detection. Interactive — one AskUserQuestion per design choice. |
/plan-devex-review |
Developer Experience Lead | Interactive DX review: explores developer personas, benchmarks against competitors' TTHW, designs your magical moment, traces friction points step by step. Three modes: DX EXPANSION, DX POLISH, DX TRIAGE. 20-45 forcing questions. |
/design-consultation |
Design Partner | Build a complete design system from scratch. Researches the landscape, proposes creative risks, generates realistic product mockups. |
/review |
Staff Engineer | Find the bugs that pass CI but blow up in production. Auto-fixes the obvious ones. Flags completeness gaps. |
/investigate |
Debugger | Systematic root-cause debugging. Iron Law: no fixes without investigation. Traces data flow, tests hypotheses, stops after 3 failed fixes. |
/design-review |
Designer Who Codes | Same audit as /plan-design-review, then fixes what it finds. Atomic commits, before/after screenshots. |
/devex-review |
DX Tester | Live developer experience audit. Actually tests your onboarding: navigates docs, tries the getting started flow, times TTHW, screenshots errors. Compares against /plan-devex-review scores — the boomerang that shows if your plan matched reality. |
/design-shotgun |
Design Explorer | "Show me options." Generates 4-6 AI mockup variants, opens a comparison board in your browser, collects your feedback, and iterates. Taste memory learns what you like. Repeat until you love something, then hand it to /design-html. |
/design-html |
Design Engineer | Turn a mockup into production HTML that actually works. Pretext computed layout: text reflows, heights adjust, layouts are dynamic. 30KB, zero deps. Detects React/Svelte/Vue. Smart API routing per design type (landing page vs dashboard vs form). The output is shippable, not a demo. |
/qa |
QA Lead | Test your app, find bugs, fix them with atomic commits, re-verify. Auto-generates regression tests for every fix. |
/qa-only |
QA Reporter | Same methodology as /qa but report only. Pure bug report without code changes. |
/pair-agent |
Multi-Agent Coordinator | Share your browser with any AI agent. One command, one paste, connected. Works with OpenClaw, Hermes, Codex, Cursor, or anything that can curl. Each agent gets its own tab. Auto-launches headed mode so you watch everything. Auto-starts ngrok tunnel for remote agents. Scoped tokens, tab isolation, rate limiting, activity attribution. |
/cso |
Chief Security Officer | OWASP Top 10 + STRIDE threat model. Zero-noise: 17 false positive exclusions, 8/10+ confidence gate, independent finding verification. Each finding includes a concrete exploit scenario. |
/ship |
Release Engineer | Sync main, run tests, audit coverage, push, open PR. Bootstraps test frameworks if you don't have one. |
/land-and-deploy |
Release Engineer | Merge the PR, wait for CI and deploy, verify production health. One command from "approved" to "verified in production." |
/canary |
SRE | Post-deploy monitoring loop. Watches for console errors, performance regressions, and page failures. |
/benchmark |
Performance Engineer | Baseline page load times, Core Web Vitals, and resource sizes. Compare before/after on every PR. |
/document-release |
Technical Writer | Update all project docs to match what you just shipped. Catches stale READMEs automatically. Builds a Diataxis coverage map (reference / how-to / tutorial / explanation) so gaps are visible in the PR body. |
/document-generate |
Documentation Author | Generate missing docs from scratch using the Diataxis framework. Researches the codebase first, then writes reference / how-to / tutorial / explanation docs that actually match the code. Invokable standalone or chained from /document-release when the coverage map finds gaps. Learn more: tutorial • how-to • why Diataxis. |
/retro |
Eng Manager | Team-aware weekly retro. Per-person breakdowns, shipping streaks, test health trends, growth opportunities. /retro global runs across all your projects and AI tools (Claude Code, Codex, Gemini). |
/browse |
QA Engineer | Give the agent eyes. Real Chromium browser, real clicks, real screenshots. ~100ms per command. /open-gstack-browser launches GStack Browser with sidebar, anti-bot stealth, and auto model routing. |
/setup-browser-cookies |
Session Manager | Import cookies from your real browser (Chrome, Arc, Brave, Edge) into the headless session. Test authenticated pages. |
/autoplan |
Review Pipeline | One command, fully reviewed plan. Runs CEO → design → eng review automatically with encoded decision principles. Surfaces only taste decisions for your approval. |
/spec |
Spec Author | Turn vague intent into a precise, executable spec in five phases (why, scope, technical with mandatory code-reading, draft, file). Codex quality gate before file (blocks below 7/10), fail-closed secret redaction, dedupe against existing issues, archive to $GSTACK_STATE_ROOT/projects/$SLUG/specs/ for team-corpus recall. --execute spawns claude -p in a fresh worktree; /ship auto-closes the source issue on merge. Plan-mode aware. |
/learn |
Memory | Manage what gstack learned across sessions. Review, search, prune, and export project-specific patterns, pitfalls, and preferences. Learnings compound across sessions so gstack gets smarter on your codebase over time. |
/make-pdf |
Publisher | Markdown in, publication-quality document out. Mermaid and excalidraw fences render as vector diagrams, fully offline. Images scale to the page and never truncate; wide diagrams get their own landscape page. --to html emits one self-contained file, --to docx a Word doc. |
/diagram |
Diagram Maker | English in, editable diagram out. Emits a triplet: mermaid source, .excalidraw you can open and edit on excalidraw.com (hand-drawn style), and rendered SVG/PNG. Zero network. Embed the source in markdown and /make-pdf renders it. |
Which review should I use?
| Building for... | Plan stage (before code) | Live audit (after shipping) |
|---|---|---|
| End users (UI, web app, mobile) | /plan-design-review |
/design-review |
| Developers (API, CLI, SDK, docs) | /plan-devex-review |
/devex-review |
| Architecture (data flow, perf, tests) | /plan-eng-review |
/review |
| All of the above | /autoplan (runs CEO → design → eng → DX, auto-detects which apply) |
— |
Power tools
| Skill | What it does |
|---|---|
/codex |
Second Opinion — independent code review from OpenAI Codex CLI. Three modes: review (pass/fail gate), adversarial challenge, and open consultation. Cross-model analysis when both /review and /codex have run. |
/careful |
Safety Guardrails — warns before destructive commands (rm -rf, DROP TABLE, force-push). Say "be careful" to activate. Override any warning. |
/freeze |
Edit Lock — restrict file edits to one directory. Prevents accidental changes outside scope while debugging. |
/guard |
Full Safety — /careful + /freeze in one command. Maximum safety for prod work. |
/unfreeze |
Unlock — remove the /freeze boundary. |
/open-gstack-browser |
GStack Browser — launch GStack Browser with sidebar, anti-bot stealth, auto model routing (Sonnet for actions, Opus for analysis), one-click cookie import, and Claude Code integration. Clean up pages, take smart screenshots, edit CSS, and pass info back to your terminal. |
/setup-deploy |
Deploy Configurator — one-time setup for /land-and-deploy. Detects your platform, production URL, and deploy commands. |
/setup-gbrain |
GBrain Onboarding — from zero to running gbrain in under 5 minutes. PGLite local, Supabase existing URL, or auto-provision a new Supabase project via Management API. MCP registration for Claude Code + per-repo trust triad (read-write/read-only/deny). Full guide. |
/sync-gbrain |
Keep Brain Current — re-index this repo's code into gbrain via gbrain sources add + gbrain sync --strategy code, refresh the ## GBrain Search Guidance block in CLAUDE.md, and auto-remove guidance when the capability check fails. --incremental (default), --full, --dry-run. Idempotent; safe to re-run. |
/gstack-upgrade |
Self-Updater — upgrade gstack to latest. Detects global vs vendored install, syncs both, shows what changed. |
/ios-qa |
iOS Live-Device QA (v1.43.0.0+) — drive a real iPhone over USB CoreDevice via an embedded StateServer in the app. Read Swift source, codegen typed @Observable accessors, run the agent loop. Optional --tailnet flag exposes the device to OpenClaw or any HTTP-capable agent on your Tailscale tailnet so remote agents can run iOS QA without ever touching the hardware. Capability-tier allowlist (observe/interact/mutate/restore), per-device session lock, audit log. |
/ios-fix, /ios-design-review, /ios-clean, /ios-sync |
iOS bug-fix loop, designer's-eye HIG audit, debug-bridge cleanup, and accessor resync. See docs/skills.md. End-to-end walkthrough: docs/howto-ios-testing-with-gstack.md. |
Standalone binaries
Beyond the slash-command skills, gstack ships standalone CLIs for workflows that don't belong inside a session:
| Command | What it does |
|---|---|
gstack-model-benchmark |
Cross-model benchmark — run the same prompt through Claude, GPT (via Codex CLI), and Gemini; compare latency, tokens, cost, and (optionally) LLM-judge quality score. Auth detected per provider, unavailable providers skip cleanly. Output as table, JSON, or markdown. --dry-run validates flags + auth without spending API calls. |
gstack-taste-update |
Design taste learning — writes approvals and rejections from /design-shotgun into a persistent per-project taste profile. Decays 5%/week. Feeds back into future variant generation so the system learns what you actually pick. |
gstack-egress |
Egress receipt auditor — every gstack-initiated off-machine send writes a tamper-evident, hash-chained receipt to ~/.gstack/security/egress.jsonl before the send. list shows what gstack attempted to send and to which host, grants shows the standing consent settings plus the exact command that revokes each, verify recomputes the hash chain and exits 3 on tamper. |
gstack-context-bill |
Token bill-of-materials — read-only, offline audit of what an installed skills tree costs in tokens: always-on frontmatter every session pays vs per-invocation SKILL.md + forced references. --diff compares two trees, --budget enforces a ceiling, --exact opts into Anthropic count_tokens (sends file text off-machine; writes an egress receipt first, degrades to the offline estimate if the receipt can't be written). |
gstack-ios-qa-daemon |
iOS QA daemon — Mac-side broker between an agent and a connected iPhone over USB CoreDevice. Loopback by default; --tailnet opens a Tailscale-facing listener with identity-gated capability tiers. Single-instance via flock on ~/.gstack/ios-qa-daemon.pid. See docs/howto-ios-testing-with-gstack.md. |
gstack-ios-qa-mint |
iOS allowlist manager — owner-grant CLI for the tailnet allowlist. grant/revoke/list against ~/.gstack/ios-qa-allowlist.json (mode 0600). Remote agents never auto-allowlist; this is the explicit-intent path. |
gstack-ios-qa-regen |
iOS bridge regenerator — deterministically installs the canonical DebugBridge package, generates typed state accessors, and records the installed gstack version. Safe to rerun after source changes or upgrades. |
Continuous checkpoint mode (opt-in, local by default)
Set gstack-config set checkpoint_mode continuous and skills auto-commit your work as you go with a WIP: prefix plus a structured [gstack-context] body (decisions, remaining work, failed approaches). Survives crashes and context switches. /context-restore reads those commits to reconstruct session state. /ship filter-squashes WIP commits before the PR (preserving non-WIP commits) so bisect stays clean. Push is opt-in via checkpoint_push=true — default is local-only so you don't trigger CI on every WIP commit.
Domain skills + raw CDP escape hatch
Two new browser primitives compound the gstack agent over time:
$B domain-skill save— agent saves a per-site note (e.g., "LinkedIn's Apply button lives in an iframe") that fires automatically next time it visits that hostname. Quarantined → active after 3 successful uses → optional cross-project promotion via$B domain-skill promote-to-global. Storage lives alongside/learn's per-project learnings file. Full reference: docs/domain-skills.md.$B cdp <Domain.method>— raw Chrome DevTools Protocol escape hatch for the rare case curated commands miss. Deny-default: methods must be explicitly added tobrowse/src/cdp-allowlist.tswith a one-line justification. Two-tier mutex serializes browser-scoped CDP calls against per-tab work. Output for data-exfil methods is wrapped in the UNTRUSTED envelope.
Want raw CDP with no rails, no allowlist, no daemon — just thin transport from agent to Chrome? browser-use/browser-harness-js is a different philosophy (agent-authored helpers vs gstack's curated commands) and a good fit if you don't want gstack's security stack. The two can coexist: gstack's
$B cdpand harness can both attach to the same Chrome via Playwright'snewCDPSession.
Deep dives with examples and philosophy for every skill →
Karpathy's four failure modes? Already covered.
Andrej Karpathy's AI coding rules (17K stars) nail four failure modes: wrong assumptions, overcomplexity, orthogonal edits, imperative over declarative. gstack's workflow skills enforce all four. /office-hours forces assumptions into the open before code is written. The Confusion Protocol stops Claude from guessing on architectural decisions. /review catches unnecessary complexity and drive-by edits. /ship transforms tasks into verifiable goals with test-first execution. If you already use Karpathy-style CLAUDE.md rules, gstack is the workflow enforcement layer that makes them stick across entire sprints, not just single prompts.
Parallel sprints
gstack works well with one sprint. It gets interesting with ten running at once.
Design is at the heart. /design-consultation builds your design system from scratch, researches what's out there, proposes creative risks, and writes DESIGN.md. But the real magic is the shotgun-to-HTML pipeline.
/design-shotgun is how you explore. You describe what you want. It generates 4-6 AI mockup variants using GPT Image. Then it opens a comparison board in your browser with all variants side by side. You pick favorites, leave feedback ("more whitespace", "bolder headline", "lose the gradient"), and it generates a new round. Repeat until you love something. Taste memory kicks in after a few rounds so it starts biasing toward what you actually like. No more describing your vision in words and hoping the AI gets it. You see options, pick the good ones, and iterate visually.
/design-html makes it real. Take that approved mockup (from /design-shotgun, a CEO plan, a design review, or just a description) and turn it into production-quality HTML/CSS. Not the kind of AI HTML that looks fine at one viewport width and breaks everywhere else. This uses Pretext for computed text layout: text actually reflows on resize, heights adjust to content, layouts are dynamic. 30KB overhead, zero dependencies. It detects your framework (React, Svelte, Vue) and outputs the right format. Smart API routing picks different Pretext patterns depending on whether it's a landing page, dashboard, form, or card layout. The output is something you'd actually ship, not a demo.
/qa was a massive unlock. It let me go from 6 to 12 parallel workers. Claude Code saying "I SEE THE ISSUE" and then actually fixing it, generating a regression test, and verifying the fix — that changed how I work. The agent has eyes now.
Smart review routing. Just like at a well-run startup: CEO doesn't have to look at infra bug fixes, design review isn't needed for backend changes. gstack tracks what reviews are run, figures out what's appropriate, and just does the smart thing. The Review Readiness Dashboard tells you where you stand before you ship.
Test everything. /ship bootstraps test frameworks from scratch if your project doesn't have one. Every /ship run produces a coverage audit. Every /qa bug fix generates a regression test. 100% test coverage is the goal — tests make vibe coding safe instead of yolo coding.
/document-release is the engineer you never had. It reads every doc file in your project, cross-references the diff, and updates everything that drifted. README, ARCHITECTURE, CONTRIBUTING, CLAUDE.md, TODOS — all kept current automatically. And now /ship auto-invokes it — docs stay current without an extra command.
Real browser mode. /open-gstack-browser launches GStack Browser, an AI-controlled Chromium with anti-bot stealth, custom branding, and the sidebar extension baked in. Sites like Google and NYTimes work without captchas. The menu bar says "GStack Browser" instead of "Chrome for Testing." Your regular Chrome stays untouched. All existing browse commands work unchanged. $B disconnect returns to headless. The browser stays alive as long as the window is open... no idle timeout killing it while you're working.
Sidebar agent — your AI browser assistant. Type natural language in the Chrome side panel and a child Claude instance executes it. "Navigate to the settings page and screenshot it." "Fill out this form with test data." "Go through every item in this list and extract the prices." The sidebar auto-routes to the right model: Sonnet for fast actions (click, navigate, screenshot) and Opus for reading and analysis. Each task gets up to 5 minutes. The sidebar agent runs in an isolated session, so it won't interfere with your main Claude Code window. One-click cookie import right from the sidebar footer.
Personal automation. The sidebar agent isn't just for dev workflows. Example: "Browse my kid's school parent portal and add all the other parents' names, phone numbers, and photos to my Google Contacts." Two ways to get authenticated: (1) log in once in the headed browser, your session persists, or (2) click the "cookies" button in the sidebar footer to import cookies from your real Chrome. Once authenticated, Claude navigates the directory, extracts the data, and creates the contacts.
Prompt injection defense. Hostile web pages try to hijack your sidebar agent. gstack ships a layered defense: a 22MB ML classifier bundled with the browser scans every page and tool output locally, a Claude Haiku transcript check votes on the full conversation shape, a random canary token in the system prompt catches session exfil attempts across text, tool args, URLs, and file writes, and a verdict combiner requires two classifiers to agree before blocking (prevents single-model false positives on Stack Overflow-style instruction pages). A shield icon in the sidebar header shows status (green/amber/red). Opt in to a 721MB DeBERTa-v3 ensemble via GSTACK_SECURITY_ENSEMBLE=deberta for 2-of-3 agreement. Emergency kill switch: GSTACK_SECURITY_OFF=1. See ARCHITECTURE.md for the full stack.
Browser handoff when the AI gets stuck. Hit a CAPTCHA, auth wall, or MFA prompt? $B handoff opens a visible Chrome at the exact same page with all your cookies and tabs intact. Solve the problem, tell Claude you're done, $B resume picks up right where it left off. The agent even suggests it automatically after 3 consecutive failures.
/pair-agent is cross-agent coordination. You're in Claude Code. You also have OpenClaw running. Or Hermes. Or Codex. You want them both looking at the same website. Type /pair-agent, pick your agent, and a GStack Browser window opens so you can watch. The skill prints a block of instructions. Paste that block into the other agent's chat. It exchanges a one-time setup key for a session token, creates its own tab, and starts browsing. You see both agents working in the same browser, each in their own tab, neither able to interfere with the other. If ngrok is installed, the tunnel starts automatically so the other agent can be on a completely different machine. Same-machine agents get a zero-friction shortcut that writes credentials directly. This is the first time AI agents from different vendors can coordinate through a shared browser with real security: scoped tokens, tab isolation, rate limiting, domain restrictions, and activity attribution.
Multi-AI second opinion. /codex gets an independent review from OpenAI's Codex CLI — a completely different AI looking at the same diff. Three modes: code review with a pass/fail gate, adversarial challenge that actively tries to break your code, and open consultation with session continuity. When both /review (Claude) and /codex (OpenAI) have reviewed the same branch, you get a cross-model analysis showing which findings overlap and which are unique to each.
Safety guardrails on demand. Say "be careful" and /careful warns before any destructive command — rm -rf, DROP TABLE, force-push, git reset --hard. /freeze locks edits to one directory while debugging so Claude can't accidentally "fix" unrelated code. /guard activates both. /investigate auto-freezes to the module being investigated.
Proactive skill suggestions. gstack notices what stage you're in — brainstorming, reviewing, debugging, testing — and suggests the right skill. Don't like it? Say "stop suggesting" and it remembers across sessions.
10-15 parallel sprints
gstack is powerful with one sprint. It is transformative with ten running at once.
Conductor runs multiple Claude Code sessions in parallel — each in its own isolated workspace. One session running /office-hours on a new idea, another doing /review on a PR, a third implementing a feature, a fourth running /qa on staging, and six more on other branches. All at the same time. I regularly run 10-15 parallel sprints — that's the practical max right now.
The sprint structure is what makes parallelism work. Without a process, ten agents is ten sources of chaos. With a process — think, plan, build, review, test, ship — each agent knows exactly what to do and when to stop. You manage them the way a CEO manages a team: check in on the decisions that matter, let the rest run.
Voice input (AquaVoice, Whisper, etc.)
gstack skills have voice-friendly trigger phrases. Say what you want naturally — "run a security check", "test the website", "do an engineering review" — and the right skill activates. You don't need to remember slash command names or acronyms.
Uninstall
Option 1: Run the uninstall script
If gstack is installed on your machine:
~/.claude/skills/gstack/bin/gstack-uninstall
This handles skills, symlinks, global state (~/.gstack/), project-local state, browse daemons, and temp files. Use --keep-state to preserve config and analytics. Use --force to skip confirmation.
Option 2: Manual removal (no local repo)
If you don't have the repo cloned (e.g. you installed via a Claude Code paste and later deleted the clone):
# 1. Stop browse daemons
pkill -f "gstack.*browse" 2>/dev/null || true
# 2. Remove per-skill directories whose SKILL.md points into gstack/
find ~/.claude/skills -mindepth 1 -maxdepth 1 -type d ! -name gstack 2>/dev/null |
while IFS= read -r dir; do
link="$dir/SKILL.md"
[ -L "$link" ] || continue
target=$(readlink "$link" 2>/dev/null) || continue
case "$target" in
gstack/*|*/gstack/*)
rm -f "$link"
rmdir "$dir" 2>/dev/null || true
;;
esac
done
# 3. Remove gstack
rm -rf ~/.claude/skills/gstack
# 4. Remove global state
rm -rf ~/.gstack
# 5. Remove integrations (skip any you never installed)
rm -rf ~/.codex/skills/gstack* 2>/dev/null
rm -rf ~/.factory/skills/gstack* 2>/dev/null
rm -rf ~/.kiro/skills/gstack* 2>/dev/null
rm -rf ~/.openclaw/skills/gstack* 2>/dev/null
# 6. Remove temp files
rm -f /tmp/gstack-* 2>/dev/null
# 7. Per-project cleanup (run from each project root)
rm -rf .gstack .gstack-worktrees .claude/skills/gstack 2>/dev/null
rm -rf .agents/skills/gstack* .factory/skills/gstack* 2>/dev/null
Clean up CLAUDE.md
The uninstall script does not edit CLAUDE.md. In each project where gstack was added, remove the ## gstack and ## Skill routing sections.
Playwright
~/Library/Caches/ms-playwright/ (macOS) is left in place because other tools may share it. Remove it if nothing else needs it.
Free, MIT licensed, open source. No premium tier, no waitlist.
I open sourced how I build software. You can fork it and make it your own.
We're hiring. Want to ship real products at AI-coding speed and help harden gstack? Come work at YC — ycombinator.com/software Extremely competitive salary and equity. San Francisco, Dogpatch District.
GBrain — persistent knowledge for your coding agent
GBrain is a persistent knowledge base for AI agents — think of it as the memory your agent actually keeps between sessions. GStack gives you a one-command path from zero to "it's running, my agent can call it."
/setup-gbrain
Four paths, pick one:
- Supabase, existing URL — your cloud agent already provisioned a brain; paste the Session Pooler URL, now this laptop uses the same data.
- Supabase, auto-provision — paste a Supabase Personal Access Token; the skill creates a new project, polls to healthy, fetches the pooler URL, hands it to
gbrain init. ~90 seconds end-to-end. - PGLite local — zero accounts, zero network, ~30 seconds. Isolated brain on this Mac only. Great for try-first; migrate to Supabase later with
/setup-gbrain --switch. - Remote gbrain MCP — your brain runs on another machine (Tailscale, ngrok, internal LAN) or a teammate's server; paste an MCP URL and bearer token. Optionally pair with a local PGLite for symbol-aware code search in split-engine mode. Best for cross-machine memory without standing up a local DB.
After init, the skill offers to register gbrain as an MCP server for Claude Code (claude mcp add gbrain -- gbrain serve) so gbrain search, gbrain put, etc. show up as first-class typed tools — not bash shell-outs.
Keeping the brain current. Run /sync-gbrain from any repo to re-index its code into gbrain (incremental by default, --full for a full reindex, --dry-run to preview). The skill registers the cwd as a federated source via gbrain sources add, runs gbrain sync --strategy code, and writes a ## GBrain Search Guidance block to your project's CLAUDE.md so the agent prefers gbrain search/code-def/code-refs over Grep. The block is removed automatically if the capability check fails — no stale guidance pointing at tools that aren't installed.
Per-remote trust policy. Each repo on your machine gets one of three tiers:
read-write— agent can search the brain AND write new pages back from this reporead-only— agent can search but never writes (best for multi-client consultants: search the shared brain, don't contaminate it with Client A's work while in Client B's repo)deny— no gbrain interaction at all
The skill asks once per repo. The decision is sticky across worktrees and branches of the same remote.
GStack memory sync (different feature, same private-repo infra). Optionally pushes your gstack state (learnings, CEO plans, design docs, retros, developer profile) to a private git repo so your memory follows you across machines, with a one-time privacy prompt (everything allowlisted / artifacts only / off) and a defense-in-depth secret scanner that blocks AWS keys, tokens, PEM blocks, and JWTs before they leave your machine.
gstack-artifacts-init
Running gstack in Conductor? Conductor explicitly strips ANTHROPIC_API_KEY and OPENAI_API_KEY from every workspace's process env, so paid evals and gbrain embeddings won't work out of the box. Set GSTACK_ANTHROPIC_API_KEY and GSTACK_OPENAI_API_KEY in Conductor's workspace env config instead — gstack's TS entry points promote them to canonical names at runtime. Full details and the contributor checklist for adding the import to new entry points: Conductor + GSTACK_* env vars.
Full monty — every scenario, every flag, every bin helper, every troubleshooting step: USING_GBRAIN_WITH_GSTACK.md
Other references: docs/gbrain-sync.md (sync-specific guide) • docs/gbrain-sync-errors.md (error index)
Docs
| Doc | What it covers |
|---|---|
| Skill Deep Dives | Philosophy, examples, and workflow for every skill (includes Greptile integration) |
| Diagrams & Document Formats | Mermaid/excalidraw fences in PDFs, image sizing and safety defaults, --to html|docx, /diagram triplets |
| Builder Ethos | Builder philosophy: Boil the Ocean, Search Before Building, three layers of knowledge |
| Using GBrain with GStack | Every path, flag, bin helper, and troubleshooting step for /setup-gbrain |
| GBrain Sync | Cross-machine memory setup, privacy modes, troubleshooting |
| Architecture | Design decisions and system internals |
| Browser Reference | Full command reference for /browse |
| Contributing | Dev setup, testing, contributor mode, and dev mode |
| Changelog | What's new in every version |
Privacy & Telemetry
gstack includes opt-in usage telemetry to help improve the project. Here's exactly what happens:
- Default is off. Nothing is sent anywhere unless you explicitly say yes.
- On first run, gstack asks if you want to share anonymous usage data. You can say no.
- What's sent (if you opt in): skill name, duration, success/fail, gstack version, OS. That's it.
- What's never sent: code, file paths, repo names, branch names, prompts, or any user-generated content.
- Change anytime:
gstack-config set telemetry offdisables everything instantly. - Every off-machine send is receipted. Any gstack-initiated network send — telemetry included — writes a hash-chained, tamper-evident receipt to
~/.gstack/security/egress.jsonlbefore the send; sensitive sinks refuse to send at all if the receipt can't be written. Audit withgstack-egress list, verify the chain withgstack-egress verify(exit 3 on tamper), see the standing consent settings withgstack-egress grants. The ledger records attempted sends so accidents are auditable — it's an audit trail, not a network firewall.
Data is stored in Supabase (open source Firebase alternative). The schema is in supabase/migrations/ — you can verify exactly what's collected. The Supabase publishable key in the repo is a public key (like a Firebase API key) — row-level security policies deny all direct access. Telemetry flows through validated edge functions that enforce schema checks, event type allowlists, and field length limits.
Local analytics are always available. Run gstack-analytics to see your personal usage dashboard from the local JSONL file — no remote data needed.
Troubleshooting
Skill not showing up? cd ~/.claude/skills/gstack && ./setup
/browse fails? cd ~/.claude/skills/gstack && bun install && bun run build
Stale install? Run /gstack-upgrade — or set auto_upgrade: true in ~/.gstack/config.yaml
Want shorter commands? cd ~/.claude/skills/gstack && ./setup --no-prefix — switches from /gstack-qa to /qa. Your choice is remembered for future upgrades.
Want namespaced commands? cd ~/.claude/skills/gstack && ./setup --prefix — switches from /qa to /gstack-qa. Useful if you run other skill packs alongside gstack.
Codex says "Skipped loading skill(s) due to invalid SKILL.md"? Your Codex skill descriptions are stale. Fix: cd ~/.codex/skills/gstack && git pull && ./setup --host codex — or for repo-local installs: cd "$(readlink -f .agents/skills/gstack)" && git pull && ./setup --host codex
Windows users: gstack works on Windows 11 via Git Bash or WSL. Node.js is required in addition to Bun — Bun has a known bug with Playwright's pipe transport on Windows (bun#4253). The browse server automatically falls back to Node.js. Make sure both bun and node are on your PATH.
On Windows without Developer Mode (MSYS2 / Git Bash), setup falls back to file copies instead of symlinks because ln -snf produces frozen copies that don't refresh on git pull. Re-run cd ~/.claude/skills/gstack && ./setup after every git pull so your skill files match the repo. setup prints a one-line note reminding you. Unix and WSL keep symlinks and don't need the re-run.
Claude says it can't see the skills? Make sure your project's CLAUDE.md has a gstack section. Add this:
## gstack
Use /browse from gstack for all web browsing. Never use mcp__claude-in-chrome__* tools.
Available skills: /office-hours, /plan-ceo-review, /plan-eng-review, /plan-design-review,
/design-consultation, /design-shotgun, /design-html, /review, /ship, /land-and-deploy,
/canary, /benchmark, /browse, /open-gstack-browser, /qa, /qa-only, /design-review,
/setup-browser-cookies, /setup-deploy, /setup-gbrain, /sync-gbrain, /retro, /investigate,
/document-release, /document-generate, /codex, /cso, /autoplan, /pair-agent, /careful, /freeze,
/guard, /unfreeze, /gstack-upgrade, /learn.
License
MIT. Free forever. Go build something.