gstack/CLAUDE.md

gstack development

Commands

bun install          # install dependencies
bun run test         # run free tests via the strict parallel runner (~90-100s full suite)
bun run test:evals   # run paid evals: LLM judge + E2E (diff-based, ~$4.35/run max)
bun run test:evals:all  # run ALL paid evals regardless of diff
bun run test:gate    # run gate-tier tests only (CI default, blocks merge)
bun run test:periodic  # run periodic-tier tests only (weekly cron / manual)
bun run test:gate:sharded    # gate tier via the sharded paid runner (one Bun process per test file)
bun run test:periodic:sharded  # periodic tier via the sharded paid runner (implies EVALS_ALL=1)
bun run test:e2e     # run E2E tests only (diff-based, ~$4.20/run max)
bun run test:e2e:all # run ALL E2E tests regardless of diff
bun run eval:select  # show which tests would run based on current diff
bun run dev <cmd>    # run CLI in dev mode, e.g. bun run dev goto https://example.com
bun run build        # gen docs + compile binaries
bun run gen:skill-docs  # regenerate SKILL.md files from templates
bun run skill:check  # health dashboard for all skills
bun run dev:skill    # watch mode: auto-regen + validate on change
bun run eval:list    # list all eval runs from ~/.gstack/projects/<slug>/evals/
bun run eval:compare # compare two eval runs (auto-picks most recent)
bun run eval:summary # aggregate stats across all eval runs
bun run eval:flake-rank  # rank tests by flake signal (retried passes first; --json, --dir, --since-days)
bun run slop          # full slop-scan report (all files)
bun run slop:diff     # slop findings in files changed on this branch only

test:evals requires ANTHROPIC_API_KEY. Codex E2E tests (test/codex-e2e.test.ts, test/codex-e2e-sol-scope.test.ts) use Codex's own auth — the hermetic runner copies only auth.json from ${CODEX_HOME:-~/.codex} and pins CODEX_HOME in the child env — no OPENAI_API_KEY env var needed.

Hermetic E2E + env keys: every E2E runner spawns children through test/helpers/hermetic-env.ts (allowlist-scrubbed env, fresh seeded CLAUDE_CONFIG_DIR, temp GSTACK_HOME, --strict-mcp-config); per-test env: overrides merge last onto a COMPLETE hermetic env, so they're safe. A PTY test that types a /skill command must pass seedSkills: true. Debug against real operator state with EVALS_HERMETIC=0. Full detail (env-shim, seeding tripwires, wiring tests): docs/TESTING_INTERNALS.md.

Diff-based test selection: test:evals and test:e2e auto-select tests based on git diff against the base branch. Each test declares its file dependencies in test/helpers/touchfiles.ts. Changes to global touchfiles (session-runner, eval-store, touchfiles.ts itself) trigger all tests. Use EVALS_ALL=1 or the :all script variants to force all tests. Run eval:select to preview which tests would run.

Two-tier system: Tests are classified as gate or periodic in E2E_TIERS (in test/helpers/touchfiles.ts — a facade over touchfiles-data.ts + test-selection.ts). CI runs gate tests per PR via evals.yml's sliced lane (planner manifest → executors → fail-closed report; engine = scripts/test-paid-shards.ts, the same runner as local eval:bg:gate); the free suite runs on every PR via .github/workflows/free-tests.yml (a REQUIRED check, secretless — fork PRs get real signal); ALL periodic tests run weekly via evals-periodic.yml (EVALS_ALL, minus the reasoned exclusions in test/helpers/periodic-exclude-data.ts — reason + tracking required per entry), plus a weekly EVALS_ALL gate census. Use EVALS_TIER=gate or EVALS_TIER=periodic to filter locally. When adding new E2E tests, classify them:

1. Safety guardrail or deterministic functional test? -> gate
2. Quality benchmark, Opus model test, or non-deterministic? -> periodic
3. Requires external service (Codex, Gemini)? -> periodic

Tier declarations are enforced by test/e2e-tier-alignment.test.ts (free, runs in bun test): a skill-e2e-* file named in a touchfiles dep list whose EVALS_TIER self-gate disagrees with its declared tier in E2E_TIERS fails the suite. Files not named in any dep list are reported, not enforced — keep both in sync.

Testing

bun run test         # run before every commit — free, ~90-100s for the full ~8,700-test suite
bun run test:evals   # run before shipping — paid, diff-based (~$4.35/run max)

bun run test routes through scripts/test-free-shards.ts (N concurrent shard processes, serial within each, packed by recorded per-file durations when scripts/free-test-durations.json exists — refresh occasionally with bun run test:free --record-durations; strict-output classification per shard: a shard without bun's terminal summary line FAILS — silent truncation cannot report green). The former trailing serial tree-mutating shard is gone: TREE_MUTATING is empty (gen-skill-docs has a main() guard and --out-dir renders every host, so tests render into mkdtemps — see docs/TESTING_INTERNALS.md). Never type bare bun test for the suite: it walks the whole repo, loading paid eval files and missing the strict classifier. It covers skill validation, gen-skill-docs quality checks, and browse integration tests. bun run test:evals runs LLM-judge quality evals and E2E tests via claude -p. Both must pass before creating a PR.

Project structure

Full annotated tree: docs/PROJECT_STRUCTURE.md. Quick map: browse/ headless-browser CLI, design/ design binary, hosts/ typed host configs, scripts/ build+DX tooling (gen-skill-docs, resolvers), test/ validation+evals, lib/ shared libraries, bin/ CLI utilities, extension/ Chrome extension, one directory per skill (ship/, review/, qa/, ...), .github/ CI, contrib/ contributor tools, docs/designs/ design documents.

SKILL.md workflow

SKILL.md files are generated from .tmpl templates. To update docs:

1. Edit the .tmpl file (e.g. SKILL.md.tmpl or browse/SKILL.md.tmpl)
2. Run bun run gen:skill-docs (or bun run build which does it automatically)
3. Commit both the .tmpl and generated .md files

Generation uses each host's defaultModel (claude for existing hosts, gpt for Codex) unless --model is explicit. Codex installs additionally read the top-level model from ${CODEX_HOME:-~/.codex}/config.toml; rerun ./setup --host codex after changing that model. Note: bun run build and a bare gen:skill-docs --host codex render the host default (gpt) — if your Codex config.toml pins a different model, rerun ./setup --host codex afterwards to restore your profile (single-owner persistence is filed in TODOS.md).

To add a new browse command: add it to browse/src/commands.ts and rebuild. To add a snapshot flag: add it to SNAPSHOT_FLAGS in browse/src/snapshot.ts and rebuild.

Token ceiling: Generated SKILL.md files trip a warning above 160KB (~40K tokens). This is a "watch for feature bloat" guardrail, not a hard gate. Modern flagship models have 200K-1M context windows, so 40K is 4-20% of window, and prompt caching makes the marginal cost of larger skills small. The ceiling exists to catch runaway preamble/resolver growth, not to force compression on carefully-tuned big skills (ship, plan-ceo-review, office-hours legitimately pack 25-35K tokens of behavior). If you blow past 40K, the right fix is usually: (1) look at WHAT grew, (2) if one resolver added 10K+ in a single PR, question whether it belongs inline or as a reference doc, (3) only compress carefully-tuned prose as a last resort — cuts to the coverage audit, review army, or voice directive have real quality cost.

A second, harder ceiling guards the DISCOVERY surface: test/catalog-budget.test.ts caps the aggregate frontmatter name + description across all skills at 1,150 token-equivalents (260-byte per-skill sub-cap), counted through the shared census in test/helpers/skill-census.ts. This one is enforced, not a warning — every host loads the full catalog every session, so growth here taxes every conversation. The failure message carries the re-measure + ratchet protocol. bin/gstack-context-bill shows the full token bill-of-materials for a skills tree (always-on vs per-invocation, --diff, --budget; --exact opts into the real tokenizer and POSTs file text to api.anthropic.com with an egress receipt).

The context-budget ratchet (test/context-budget-ratchet.test.ts, free, runs in bun run test) pins ABSOLUTE ceilings on two more ledgers: the always-on FULL-frontmatter aggregate (catalog-budget counts only name+description) and each skill's per-invocation eager tokens (SKILL.md + forced-read references — size floors and parity ratios guard these relatively, not absolutely), graded against test/fixtures/context-budget.json. A skill that grows past its ceiling fails; a new skill fails until it's consciously budgeted. For legitimate growth or a landed reduction, re-run bun test/helpers/capture-context-budget.ts and commit the refreshed fixture in the same commit, so ceilings ratchet down and every win is locked.

Merge conflicts on SKILL.md files: NEVER resolve conflicts on generated SKILL.md files by accepting either side. Instead: (1) resolve conflicts on the .tmpl templates and scripts/gen-skill-docs.ts (the sources of truth), (2) run bun run gen:skill-docs to regenerate all SKILL.md files, (3) stage the regenerated files. Accepting one side's generated output silently drops the other side's template changes.

Platform-agnostic design

Skills must NEVER hardcode framework-specific commands, file patterns, or directory structures. Instead:

1. Read CLAUDE.md for project-specific config (test commands, eval commands, etc.)
2. If missing, AskUserQuestion — let the user tell you or let gstack search the repo
3. Persist the answer to CLAUDE.md so we never have to ask again

This applies to test commands, eval commands, deploy commands, and any other project-specific behavior. The project owns its config; gstack reads it.

Writing SKILL templates

SKILL.md.tmpl files are prompt templates read by Claude, not bash scripts. Each bash code block runs in a separate shell — variables do not persist between blocks.

Rules:

• Use natural language for logic and state. Don't use shell variables to pass state between code blocks. Instead, tell Claude what to remember and reference it in prose (e.g., "the base branch detected in Step 0").
• Don't hardcode branch names. Detect main/master/etc dynamically via gh pr view or gh repo view. Use {{BASE_BRANCH_DETECT}} for PR-targeting skills. Use "the base branch" in prose, <base> in code block placeholders.
• Keep bash blocks self-contained. Each code block should work independently. If a block needs context from a previous step, restate it in the prose above.
• Express conditionals as English. Instead of nested if/elif/else in bash, write numbered decision steps: "1. If X, do Y. 2. Otherwise, do Z."

Writing style (V1)

Default output from every tier-≥2 skill follows the Writing Style section in scripts/resolvers/preamble.ts: jargon glossed on first use (curated list in scripts/jargon-list.json, baked at gen-skill-docs time), questions framed in outcome terms ("what breaks for your users if...") not implementation terms, short sentences, decisions close with user impact. Power users who want the tighter V0 prose set gstack-config set explain_level terse (binary switch, no middle mode). See docs/designs/PLAN_TUNING_V1.md for the full design rationale. The review pacing overhaul that originally tried to ride alongside writing-style was extracted to V1.1 — see docs/designs/PACING_UPDATES_V0.md.

Browser interaction

When you need to interact with a browser (QA, dogfooding, cookie setup), use the /browse skill or run the browse binary directly via $B <command>. NEVER use mcp__claude-in-chrome__* tools — they are slow, unreliable, and not what this project uses.

Server / sidebar / extension internals: before editing browse/src/server.ts, extension/, the sidebar PTY, any SSE endpoint, or CDP session code, read docs/BROWSER_INTERNALS.md — sidebar message flow, WebSocket auth, tunnel dual-listener rules, Unicode sanitization at egress, SSE/CDP helpers, setup symlink hardening, and the sidebar security stack all live there, each pinned by a CI tripwire.

Egress receipts at every off-machine sink (v1.63.0.0+). Every gstack-initiated send off the machine MUST write a hash-chained receipt to ~/.gstack/security/egress.jsonl BEFORE the send: TypeScript callers use writeReceipt from lib/egress-receipt.ts; shell scripts source bin/gstack-egress-lib.sh and use _receipted_curl / _receipted_git. Failure polarity is per-class: fail-closed for sensitive sinks (brain-sync, memory-ingest, gbrain-sync, telemetry, ngrok tunnels, mcp-verify, supabase-provision), fail-open

• stderr warning for user-facing ones (design OpenAI calls, update-check, dashboards, git-class ops). The new-sink scanner in test/egress-receipt-wiring.test.ts fails CI on an unreceipted curl / git push / fetch to a non-loopback host unless the file carries a reasoned entry in its SCANNER_EXEMPT list (user-directed page fetches, reachability probes, instruction strings, skill prose) — if you add a new off-machine sink, wire it through the helpers and add it to the enumerated sink list. Inspect with bin/gstack-egress (list | verify, exit 3 on tamper | grants). Threat model: forensic observability of ATTEMPTED egress, not an exfiltration control.

Dev symlink awareness

When developing gstack, .claude/skills/gstack may be a symlink back to this working directory (gitignored). This means skill changes are live immediately, great for rapid iteration, risky during big refactors where half-written skills could break other Claude Code sessions using gstack concurrently.

Check once per session: Run ls -la .claude/skills/gstack to see if it's a symlink or a real copy. If it's a symlink to your working directory, be aware that:

• Template changes + bun run gen:skill-docs immediately affect all gstack invocations
• Breaking changes to SKILL.md.tmpl files can break concurrent gstack sessions
• During large refactors, remove the symlink (rm .claude/skills/gstack) so the global install at ~/.claude/skills/gstack/ is used instead

Prefix setting: Setup creates real directories (not symlinks) at the top level with a SKILL.md symlink inside (e.g., qa/SKILL.md -> gstack/qa/SKILL.md), plus links to each skill's runtime assets (sections/, templates, checklists — everything except SKILL.md, tests, build output, and .tmpl sources). Alias skills (_gstack-command, connect-chrome) install as rewritten copies, never symlinks. This ensures Claude discovers them as top-level skills, not nested under gstack/. Names are either short (qa) or namespaced (gstack-qa), controlled by skill_prefix in ~/.gstack/config.yaml. Pass --no-prefix or --prefix to skip the interactive prompt.

Note: Vendoring gstack into a project's repo is deprecated. Use global install

• ./setup --team instead. See README.md for team mode instructions.

For plan reviews: When reviewing plans that modify skill templates or the gen-skill-docs pipeline, consider whether the changes should be tested in isolation before going live (especially if the user is actively using gstack in other windows).

Upgrade migrations: When a change modifies on-disk state (directory structure, config format, stale files) in ways that could break existing user installs, add a migration script to gstack-upgrade/migrations/. Read CONTRIBUTING.md's "Upgrade migrations" section for the format and testing requirements. The upgrade skill runs these automatically after ./setup during /gstack-upgrade.

Compiled binaries — never commit browse/dist/, design/dist/, or make-pdf/dist/

The browse/dist/, design/dist/, and make-pdf/dist/ directories contain compiled Bun binaries (browse, find-browse, design, ~62MB each). These are Mach-O arm64 only — they do NOT work on Linux, Windows, or Intel Macs. The ./setup script builds from source for every platform.

These directories are untracked and gitignored (.gitignore:3-6; the browse/dist/ binaries were untracked in 64d5a3e4, v0.11.16.0; the others were never tracked). They will NOT appear in git status. If a dist binary ever does show up in git status, something force-added it (git add -f) — do not commit it; unstage it and find out how it got there.

When staging files, always use specific filenames (git add file1 file2) — never git add . or git add -A, which can sweep in build outputs and junk.

Redaction guard (PII / secrets / legal content)

Shared redaction engine catches credentials, PII, and legal/damaging content before it reaches an external sink (codex dispatch, GitHub issue/PR body, pushed commit). It is a guardrail, not airtight enforcement — git push --no-verify, direct gh issue create, and GSTACK_REDACT_PREPUSH=skip all bypass it. It catches accidents and carelessness, the 99% case. Do not claim it stops a determined leaker (a CHANGELOG line that does would fail a hostile screenshotter).

• Engine + taxonomy: lib/redact-patterns.ts (the single source of truth — 3 tiers; HIGH = genuinely-secret credentials that block, MEDIUM = PII/legal/ internal + high-FP credential shapes that confirm via AskUserQuestion, LOW = FYI) and lib/redact-engine.ts (pure scan() + applyRedactions()). Calibration matters: a gate that cries wolf gets ignored, so context-variable shapes (Stripe pk_live_, Google AIza, JWT, env *_KEY=) sit at MEDIUM.
• CLI: bin/gstack-redact (exit 0 clean / 2 MEDIUM / 3 HIGH; --json, --auto-redact, --repo-visibility, --from-file). bin/gstack-redact-prepush is the opt-in git hook.
• Skill docs are generated from scripts/resolvers/redact-doc.ts ({{REDACT_INVOCATION_BLOCK:<sink>}}) so /spec, /cso, /ship, /document-release, /document-generate never drift from the engine.
• Scan-at-sink: always scan the EXACT bytes that will be sent — write to a temp file, scan that file, pass the SAME file to gh/git. Never scan a string then re-render (that reopens a scan-vs-send gap).
• Visibility (no tier promotion): resolve once per run, order = local config (gstack-config get redact_repo_visibility, ~/.gstack so never committed) → gh → glab → unknown(=public-strict). Public repos get STERNER per-finding confirmation (no batch-acknowledge, no silent-proceed); MEDIUM is never auto-promoted to HIGH.
• Tool-attributed fences: wrap Codex/Greptile/eval output in ```codex-review / ```greptile fences so example credentials those tools quote WARN-degrade instead of blocking. A live-format credential inside the fence still blocks.
• Config keys: redact_repo_visibility (public|private|unknown, local-only override for repos gh/glab can't read), redact_prepush_hook (true|false). There is intentionally NO key to disable HIGH blocking.
• Audit: the /spec semantic pass appends a content-free record (categories + body sha256, no spec text) to ~/.gstack/security/semantic-reviews.jsonl (0600).

Commit style

Always bisect commits. Every commit should be a single logical change. When you've made multiple changes (e.g., a rename + a rewrite + new tests), split them into separate commits before pushing. Each commit should be independently understandable and revertable.

Examples of good bisection:

• Rename/move separate from behavior changes
• Test infrastructure (touchfiles, helpers) separate from test implementations
• Template changes separate from generated file regeneration
• Mechanical refactors separate from new features

When the user says "bisect commit" or "bisect and push," split staged/unstaged changes into logical commits and push.

Slop-scan: AI code quality, not AI code hiding

We use slop-scan to catch patterns where AI-generated code is genuinely worse than what a human would write. We are NOT trying to pass as human code. We are AI-coded and proud of it. The goal is code quality.

npx slop-scan scan .          # human-readable report
npx slop-scan scan . --json   # machine-readable for diffing

Config: slop-scan.config.json at repo root (currently excludes **/vendor/**).

Before fixing any finding, read docs/SLOP_SCAN.md: it separates genuine quality fixes (empty catches around file ops → safeUnlink(), process kills → safeKill()) from linter gaming we reject (string-matching error messages, tightening best-effort cleanup). Utilities live in browse/src/error-handling.ts. Don't chase the score.

Community PR guardrails

When reviewing or merging community PRs, always AskUserQuestion before accepting any commit that:

1. Touches ETHOS.md — this file is Garry's personal builder philosophy. No edits from external contributors or AI agents, period.
2. Removes or softens promotional material — YC references, founder perspective, and product voice are intentional. PRs that frame these as "unnecessary" or "too promotional" must be rejected.
3. Changes Garry's voice — the tone, humor, directness, and perspective in skill templates, CHANGELOG, and docs are not generic. PRs that rewrite voice to be more "neutral" or "professional" must be rejected.

Even if the agent strongly believes a change improves the project, these three categories require explicit user approval via AskUserQuestion. No exceptions. No auto-merging. No "I'll just clean this up."

Checking out PRs from garrytan-agents

When the user says "check out " and the PR is from garrytan-agents/gstack (or any other fork that is NOT a collaborator on garrytan/gstack), do NOT just gh pr checkout. Fork PRs don't receive base-repo secrets (ANTHROPIC_API_KEY, OPENAI_API_KEY, etc.), so the eval/E2E CI jobs fail with empty-env auth errors regardless of what's set on the base repo.

Workflow: push the branch to garrytan/gstack (the base repo) and re-target the PR from there.

Concretely, after gh pr checkout <N>:

1. Note the original PR number and head branch name.
2. Push the same branch to the base repo: git push origin HEAD:<branch-name> (origin = garrytan/gstack, since the worktree is set up with that remote).
3. Close the fork PR (gh pr close <N> --comment "moving to base-repo branch for secret access").
4. Open a new PR from the base-repo branch: gh pr create --base main --head <branch-name>.
5. New PR's workflows will get secrets automatically.

Why not fix it on the fork side? garrytan-agents isn't a collaborator on garrytan/gstack. Adding it as a collaborator (option A) or flipping the repo-wide "send secrets to fork PRs" toggle (option B) would let secrets reach fork PRs from anyone — broader blast radius than just moving this one branch. Option C (this section) keeps secret-distribution scope tight.

If the user asks you to skip the move (e.g., "just leave it as a fork PR"), respect that — eval CI will fail with empty-env auth, but check-freshness, workflow-lint, and windows-tests will still pass on the fork PR.

CHANGELOG + VERSION style

Versioning invariant (workspace-aware ship). VERSION is a monotonic ordered release identifier, not a strict semver commitment. The bump level (major/minor/patch/micro) expresses intent at ship time. Queue-advancing past a claimed version within the same bump level is explicitly permitted — if branch A claims v1.7.0.0 as a MINOR and branch B is also a MINOR, B lands at v1.8.0.0 (still a MINOR relative to main). Downstream consumers must NOT rely on "MINOR = feature-only, PATCH = fix-only" as a strict contract. This is why bin/gstack-next-version advances within the chosen bump level rather than repicking the level when collisions happen.

package.json carries the npm-valid translation, not VERSION verbatim. VERSION stays the 4-digit source of truth (e.g. 1.67.0.0); package.json and any subdirectory manifests with a version field get the 3-digit npm-valid translation (1.67.0), and lockfile version fields sync only when the lockfile already exists. bin/gstack-version-bump (via lib/version-source.ts) owns the translation and judges drift on translated forms — do NOT "fix" the apparent mismatch by hand, and do not write a 4-digit version into package.json (npm rejects it). Rationale and translation rules live in the lib/version-source.ts header; test/gstack-version-bump.test.ts pins the contract.

Scale-aware bumps — use common sense. When the diff is big, bump MINOR (or MAJOR), not PATCH. PATCH is for bug fixes and small additions; MINOR is for substantial new capability or substantial reduction; MAJOR is for breaking changes. Rough guideposts (don't treat as rules, treat as smell-checks):

• PATCH (X.Y.Z+1.0): bug fix, doc tweak, small additive change, single test/file added. Net diff under ~500 lines, no new user-facing capability.
• MINOR (X.Y+1.0.0): new capability shipped (skill, harness, command, big refactor), substantial code reduction (compression, migration), or coordinated multi-file change. Net diff over ~2000 lines added/removed, OR a user-visible feature you'd put in a tweet.
• MAJOR (X+1.0.0.0): breaking change to public surface (CLI flag rename, skill removed, config format changed), OR a release big enough to be the headline of a blog post.

If you find yourself debating "is 10K added + 24K removed really a PATCH?" — it isn't. Bump MINOR. Same for "this adds a whole new test harness with 6 new E2E tests + helper utilities" — MINOR. The bump level is communication to the user about what kind of release this is; don't undersell it.

When merging origin/main brings a higher VERSION, re-evaluate the bump level against the SCALE of your branch's work, not just whether main moved forward. If main bumped MINOR and your branch is also a substantial change, you bump MINOR again on top (e.g., main at v1.14.0.0, your branch lands v1.15.0.0).

VERSION and CHANGELOG are branch-scoped. Every feature branch that ships gets its own version bump and CHANGELOG entry. The entry describes what THIS branch adds — not what was already on main.

The CHANGELOG entry is the diff between main and the shipping branch — what users get when they upgrade. NOT how the branch got there. A reader landing on the entry should learn what they can do now that they couldn't before; they should not learn about the branch's internal version bumps, the bugs we caught and fixed mid-branch, the plan reviews we ran, or the commits we squashed. That is branch development narrative. It belongs in PR descriptions and commit messages, not CHANGELOG.

Never reference branch-internal versions in a CHANGELOG entry. If your branch bumped VERSION from v1.5.0.0 → v1.5.1.0 → v1.6.0.0 during development and only the final v1.6.0.0 ships to main, the entry must read as if v1.5.1.0 never existed. Concretely, NEVER write:

• "v1.5.1.0 had a bug that v1.6.0.0 fixes" — readers don't know about v1.5.1.0; it's a branch-internal artifact.
• "The shipping headline of v1.5.1.0 was broken because..." — same reason. From main's perspective, v1.5.1.0 was never released.
• "Pre-fix tests encoded the broken behavior" — that's a contributor's victory lap, not a user benefit.
• "Two surgical edits, both in the dispatch path" — micro-narrative of the patch.

Instead, describe the released system: "Browser-skills run end-to-end with the expected tab-access semantics." If a property of the shipped system is worth calling out (e.g., "skill spawns get permissive tab access; pair-agent tunnel tokens require ownership"), document it as a property, not as a fix. The shipped system is what the user gets; the path to that system is invisible to them.

When to write the CHANGELOG entry:

• At /ship time (Step 13), not during development or mid-branch.
• The entry covers ALL commits on this branch vs the base branch.
• Never fold new work into an existing CHANGELOG entry from a prior version that already landed on main. If main has v0.10.0.0 and your branch adds features, bump to v0.10.1.0 with a new entry — don't edit the v0.10.0.0 entry.

Key questions before writing:

1. What branch am I on? What did THIS branch change?
2. Is the base branch version already released? (If yes, bump and create new entry.)
3. Does an existing entry on this branch already cover earlier work? (If yes, replace it with one unified entry for the final version.)

Merging main does NOT mean adopting main's version. When you merge origin/main into a feature branch, main may bring new CHANGELOG entries and a higher VERSION. Your branch still needs its OWN version bump on top. If main is at v0.13.8.0 and your branch adds features, bump to v0.13.9.0 with a new entry. Never jam your changes into an entry that already landed on main. Your entry goes on top because your branch lands next.

After merging main, always check:

• Does CHANGELOG have your branch's own entry separate from main's entries?
• Is VERSION higher than main's VERSION?
• Is your entry the topmost entry in CHANGELOG (above main's latest)? If any answer is no, fix it before continuing.

After any CHANGELOG edit that moves, adds, or removes entries, immediately run grep "^## \[" CHANGELOG.md to verify no duplicates and a sensible reverse-chronological order. Gaps between version numbers are fine. A branch that ships at v1.6.4.0 without a prior v1.5.2.0 or v1.5.3.0 entry on main is correct — those were branch-internal version numbers that never landed. Do not back-fill gaps with placeholder entries.

Never orphan branch-internal versions. If your branch bumped VERSION several times during development (v1.5.1.0 → v1.5.2.0 → v1.6.4.0, say) and those earlier entries were never released to main, the final ship consolidates ALL of them into a single entry at the final version (v1.6.4.0). Collapse them — delete the old entries and move their content into the final entry, re-version table columns accordingly. Readers see one release, not a branch diary. Gaps are fine (v1.6.3.0 → v1.6.4.0 with no v1.5.x in between on main is correct).

CHANGELOG.md is for users, not contributors. Write it like product release notes:

• Lead with what the user can now do that they couldn't before. Sell the feature.
• Use plain language, not implementation details. "You can now..." not "Refactored the..."
• Never mention TODOS.md, internal tracking, eval infrastructure, or contributor-facing details. These are invisible to users and meaningless to them.
• Put contributor/internal changes in a separate "For contributors" section at the bottom.
• Every entry should make someone think "oh nice, I want to try that."
• No jargon: say "every question now tells you which project and branch you're in" not "AskUserQuestion format standardized across skill templates via preamble resolver."

Only document what shipped between main and this change. Readers do not care how we got here. Keep out of the CHANGELOG, always:

• Branch resyncs, merge commits with main, rebase activity.
• Plan approvals, review outcomes (CEO / eng / design / outside-voice / codex findings), AskUserQuestion decisions, scope negotiations.
• "Work queued," "plan approved," "in-progress," "will ship later" — the CHANGELOG documents what DID ship, not what MIGHT ship.
• Version-bump housekeeping when no user-facing work actually landed.

If the diff between the base branch version and this version has no user-facing change (only merges, only CHANGELOG edits, only placeholder work), the honest entry is one sentence: "Version bump for branch-ahead discipline. No user-facing changes yet." Stop there. Do not pad. Do not explain the plan that will ship eventually. Do not narrate the branch's history. When real work lands, the entry will replace this at /ship time.

Entry format

Every ## [X.Y.Z] entry starts with a release summary (two-line bold headline, lead paragraph, numbers table, closing paragraph) followed by an ### Itemized changes section. Read docs/CHANGELOG_STYLE.md for the full format spec and voice rules BEFORE writing an entry. Always credit community contributions with Contributed by @username.

AI effort compression

When estimating or discussing effort, always show both human-team and CC+gstack time:

Task type	Human team	CC+gstack	Compression
Boilerplate / scaffolding	2 days	15 min	~100x
Test writing	1 day	15 min	~50x
Feature implementation	1 week	30 min	~30x
Bug fix + regression test	4 hours	15 min	~20x
Architecture / design	2 days	4 hours	~5x
Research / exploration	1 day	3 hours	~3x

Completeness is cheap. Don't recommend shortcuts when the complete implementation is achievable. Boil the ocean — the complete thing is the goal; only genuinely unrelated multi-quarter migrations are separate scope, never an excuse for a shortcut. See the Completeness Principle in the skill preamble for the full philosophy.

Search before building

Before designing any solution that involves concurrency, unfamiliar patterns, infrastructure, or anything where the runtime/framework might have a built-in:

1. Search for "{runtime} {thing} built-in"
2. Search for "{thing} best practice {current year}"
3. Check official runtime/framework docs

Three layers of knowledge: tried-and-true (Layer 1), new-and-popular (Layer 2), first-principles (Layer 3). Prize Layer 3 above all. See ETHOS.md for the full builder philosophy.

Local plans

Contributors can store long-range vision docs and design documents in ~/.gstack-dev/plans/. These are local-only (not checked in). When reviewing TODOS.md, check plans/ for candidates that may be ready to promote to TODOs or implement.

E2E eval failure blame protocol

When an E2E eval fails during /ship or any other workflow, never claim "not related to our changes" without proving it. These systems have invisible couplings — a preamble text change affects agent behavior, a new helper changes timing, a regenerated SKILL.md shifts prompt context.

Required before attributing a failure to "pre-existing":

1. Run the same eval on main (or base branch) and show it fails there too
2. If it passes on main but fails on the branch — it IS your change. Trace the blame.
3. If you can't run on main, say "unverified — may or may not be related" and flag it as a risk in the PR body

"Pre-existing" without receipts is a lazy claim. Prove it or don't say it.

Long-running tasks: don't give up

When running evals, E2E tests, or any long-running background task, poll until completion. Use sleep 180 && echo "ready" + TaskOutput in a loop every 3 minutes. Never switch to blocking mode and give up when the poll times out. Never say "I'll be notified when it completes" and stop checking — keep the loop going until the task finishes or the user tells you to stop.

The full E2E suite can take 30-45 minutes. That's 10-15 polling cycles. Do all of them. Report progress at each check (which tests passed, which are running, any failures so far). The user wants to see the run complete, not a promise that you'll check later.

Running evals as an agent: always detach (SIGTERM-proof)

When you (an agent/harness) launch a long eval/benchmark run, run it through bin/gstack-detach — NEVER as a plain backgrounded Bash task. A plain background task lives in the harness's process group, so a SIGTERM ("polite quit") on a turn boundary, a stopped Monitor, or an interruption kills the run mid-flight (observed: script "test:gate" was terminated by signal SIGTERM ~40 min into a run). On macOS the run can also die to idle-sleep. gstack-detach fixes both: a fresh session (escapes the group SIGTERM) wrapped in caffeinate -i (blocks idle-sleep).

• Use the eval:bg* scripts (eval:bg, eval:bg:all, eval:bg:gate, eval:bg:periodic) — they wrap the eval command in gstack-detach with the machine-wide gstack-evals lock (concurrent worktrees serialize instead of saturating the shared model API), a per-tier watchdog, and a run-scoped log under ~/.gstack-dev/eval-runs/ (no shared-/tmp collision). Each prints its log path. eval:bg:gate / eval:bg:periodic run their tier through the sharded paid runner (scripts/test-paid-shards.ts, also exposed as test:gate:sharded / test:periodic:sharded): one Bun process per test file, an external wall-clock timeout that kills the shard's process GROUP (stray claude/codex grandchildren included), a per-shard GSTACK_EVAL_DIR=<evalDir>/shards/<slug>/ honored by the EvalCollector constructor, and an aggregate that separates failed vs timed-out vs never-started shards — the detach timeouts (25200s gate / 37800s periodic; floor enforced against the live shard census by test/eval-detach-timeout-floor.test.ts) are sized against worst-case shard wall clock. EVALS_JOBS sets the shard process count (default 8); EVALS_CONCURRENCY is bun's --max-concurrency WITHIN a shard (default 2) — they are deliberately separate knobs. eval:list / eval:compare / eval:summary / eval:flake-rank read the shard dirs too. Or call gstack-detach [--lock NAME] [--timeout SECS] [--label LBL] -- <cmd> directly for any long agent job. Export ANTHROPIC_API_KEY first (never pass keys in argv).
• Then poll the printed logfile with a death-aware watcher: break on the guaranteed ### gstack-detach EXIT=<code> ### sentinel (success AND failure are both marked, so silence is never mistaken for success). The detached run survives even if your watcher gets reaped, so re-checking the log always works.
• Why the lock: a shared dev box with several Conductor worktrees will rate-limit the model API if two eval suites run at once (15-way concurrency each), which mass-times-out E2E tests. The lock makes the second run WAIT, not collide.
• Humans running bun run test:evals foreground in their own terminal don't need this — Ctrl-C is intended there. Detachment is for agent-launched runs only.

E2E test fixtures: extract, don't copy

NEVER copy a full SKILL.md file into an E2E test fixture. SKILL.md files are 1500-2000 lines. When claude -p reads a file that large, context bloat causes timeouts, flaky turn limits, and tests that take 5-10x longer than necessary.

Instead, extract only the section the test actually needs:

// BAD — agent reads 1900 lines, burns tokens on irrelevant sections
fs.copyFileSync(path.join(ROOT, 'ship', 'SKILL.md'), path.join(dir, 'ship-SKILL.md'));

// GOOD — agent reads ~60 lines, finishes in 38s instead of timing out
const full = fs.readFileSync(path.join(ROOT, 'ship', 'SKILL.md'), 'utf-8');
const start = full.indexOf('## Review Readiness Dashboard');
const end = full.indexOf('\n---\n', start);
fs.writeFileSync(path.join(dir, 'ship-SKILL.md'), full.slice(start, end > start ? end : undefined));

Also when running targeted E2E tests to debug failures:

• Run in foreground (bun test ...), not background with & and tee
• Never pkill running eval processes and restart — you lose results and waste money
• One clean run beats three killed-and-restarted runs

Publishing native OpenClaw skills to ClawHub

Native OpenClaw skills live in openclaw/skills/gstack-openclaw-*/SKILL.md. The command is clawhub publish (NOT clawhub skill publish) — full workflow, auth, and verification: docs/OPENCLAW_PUBLISHING.md.

Deploying to the active skill

The active skill lives at ~/.claude/skills/gstack/. After making changes:

1. Push your branch
2. Fetch and reset in the skill directory: cd ~/.claude/skills/gstack && git fetch origin && git reset --hard origin/main
3. Rebuild: cd ~/.claude/skills/gstack && bun run build

If you use gbrain: the git reset --hard in step 2 reverts the brain-aware (GBRAIN_CONTEXT_LOAD / GBRAIN_SAVE_RESULTS) blocks that gstack-config gbrain-refresh renders into the install (those generated blocks differ from main by design). After deploying, re-run gstack-config gbrain-refresh to restore them across all your projects' Claude sessions. It's idempotent.

Or copy the binaries directly:

• cp browse/dist/browse ~/.claude/skills/gstack/browse/dist/browse
• cp design/dist/design ~/.claude/skills/gstack/design/dist/design

Skill routing

When the user's request matches an available skill, invoke it via the Skill tool. When in doubt, invoke the skill.

Key routing rules:

• Product ideas/brainstorming → invoke /office-hours
• Strategy/scope → invoke /plan-ceo-review
• Architecture → invoke /plan-eng-review
• Design system/plan review → invoke /design-consultation or /plan-design-review
• Full review pipeline → invoke /autoplan
• Bugs/errors → invoke /investigate
• QA/testing site behavior → invoke /qa or /qa-only
• Code review/diff check → invoke /review
• Visual polish → invoke /design-review
• Ship/deploy/PR → invoke /ship or /land-and-deploy
• Save progress → invoke /context-save
• Resume context → invoke /context-restore

Cross-session decision memory

Durable decisions and their rationale are captured in an append-only, event-sourced store at ~/.gstack/projects/<slug>/decisions.jsonl so neither you nor the user re-litigates a settled call or loses the "why" across sessions. This is the reliable, file-only path: it works with gbrain OFF. (gbrain semantic recall is an optional enhancement layered on top, never a dependency.)

• Resurface active decisions before re-deciding: bin/gstack-decision-search (--recent N, --scope repo|branch|issue, --query KW, --all, --json). Add --semantic (with --query) to append related hits from gbrain memory when it's up; it degrades silently to the reliable file results when gbrain is off. Session start already surfaces scope-relevant active decisions via Context Recovery. If a decision is listed, treat it as settled with its rationale; if you're about to reverse it, say so explicitly.
• Capture a DURABLE decision when you or the user make one: bin/gstack-decision-log '{"decision":"...","rationale":"...","scope":"repo|branch|issue","source":"user|skill|agent","confidence":1-10}'. Reverse a prior call with --supersede <id>; expunge an accidental secret with --redact <id>; rewrite the log to the active set with --compact. Non-interactive (never prompts), injection-sanitized, and HIGH-secret-blocking on write.
• Durable means: architecture choice, scope cut, tool/vendor choice, or a reversal of a prior call. NOT a turn-level edit, a phrasing tweak, or anything trivially re-derivable. Capture is curated at the source — log durable decisions only, or the store becomes noise.

GBrain Search Guidance (configured by /sync-gbrain)

GBrain is set up and synced on this machine. The agent should prefer gbrain over Grep when the question is semantic or when you don't know the exact identifier yet.

This worktree is pinned to a worktree-scoped code source via the .gbrain-source file in the repo root (kubectl-style context). Any gbrain code-def, code-refs, code-callers, code-callees, or query call from anywhere under this worktree routes to that source by default — no --source flag needed. Conductor sibling worktrees of the same repo each have their own pin and their own indexed pages, so semantic results match the actual code on disk in this worktree.

Two indexed corpora available via the gbrain CLI:

• This worktree's code (auto-pinned via .gbrain-source).
• ~/.gstack/ curated memory (registered as gstack-brain-<user> source via the existing federation pipeline).

Prefer gbrain when:

• "Where is X handled?" / semantic intent, no exact string yet: gbrain search "<terms>" or gbrain query "<question>"
• "Where is symbol Y defined?" / symbol-based code questions: gbrain code-def <symbol> or gbrain code-refs <symbol>
• "What calls Y?" / "What does Y depend on?": gbrain code-callers <symbol> / gbrain code-callees <symbol>
• "What did we decide last time?" / past plans, retros, learnings: gbrain search "<terms>" --source gstack-brain-<user>

Grep is still right for known exact strings, regex, multiline patterns, and file globs. Run /sync-gbrain after meaningful code changes; for ongoing auto-sync across all worktrees, run gbrain autopilot --install once per machine — gbrain's daemon handles incremental refresh on a schedule.

Safety: don't run /sync-gbrain while gbrain autopilot is active — the orchestrator refuses destructive source ops when it detects a running autopilot to avoid racing it (#1734). Prefer registering user repos with gbrain sources add --path <dir> (no --url): URL-managed sources can auto-reclone, and the sync code walk for them requires an explicit --allow-reclone opt-in.