ostack

Category: Ops & Delivery | Uploader: mr-daedalium | Downloads: 0 | Version: v1.0（Latest）

Fast headless browser for QA testing and site dogfooding. Navigate pages, interact with elements, verify state, diff before/after, take annotated screenshots, test responsive layouts, forms, uploads, dialogs, and capture bug evidence. Use when asked to open or test a site, verify a deployment, dogfood a user flow, or file a bug with screenshots.

Changelog: Source: GitHub https://github.com/mr-daedalium/ostack

Directory Structure

Current level: tree/main/

📁 autoplan/
- 📄 SKILL.md 30.5 KB
- 📄 SKILL.md.tmpl 17.1 KB
📁 benchmark/
- 📄 SKILL.md 20.2 KB
- 📄 SKILL.md.tmpl 9.0 KB
📁 bin/
- 📄 dev-setup 2.4 KB
- 📄 dev-teardown 1.6 KB
- 📄 ostack-config 1.4 KB
- 📄 ostack-diff-scope 2.4 KB
- 📄 ostack-global-discover.ts 14.9 KB
- 📄 ostack-repo-mode 3.5 KB
- 📄 ostack-review-log 411 B
- 📄 ostack-review-read 528 B
- 📄 ostack-slug 800 B
- 📄 ostack-update-check 5.6 KB
📁 browse/
- 📁 bin/
  - 📄 find-browse 814 B
  - 📄 remote-slug 572 B
- 📁 scripts/
  - 📄 build-node-server.sh 1.9 KB
- 📁 src/
  - 📄 browser-manager.ts 20.7 KB
  - 📄 buffers.ts 4.2 KB
  - 📄 bun-polyfill.cjs 2.9 KB
  - 📄 cli.ts 14.1 KB
  - 📄 commands.ts 8.0 KB
  - 📄 config.ts 4.6 KB
  - 📄 cookie-import-browser.ts 15.3 KB
  - 📄 cookie-picker-routes.ts 7.5 KB
  - 📄 cookie-picker-ui.ts 16.4 KB
  - 📄 find-browse.ts 1.7 KB
  - 📄 meta-commands.ts 9.7 KB
  - 📄 platform.ts 634 B
  - 📄 read-commands.ts 12.3 KB
  - 📄 server.ts 13.3 KB
  - 📄 snapshot.ts 14.8 KB
  - 📄 url-validation.ts 3.1 KB
  - 📄 write-commands.ts 13.1 KB
- 📁 test/
  - 📁 fixtures/
    
    📄 basic.html 914 B
    
    📄 cursor-interactive.html 883 B
    
    📄 dialog.html 603 B
    
    📄 empty.html 43 B
    
    📄 forms.html 1.8 KB
    
    📄 qa-eval-checkout.html 4.2 KB
    
    📄 qa-eval-spa.html 3.2 KB
    
    📄 qa-eval.html 1.7 KB
    
    📄 responsive.html 1.4 KB
    
    📄 snapshot.html 1.5 KB
    
    📄 spa.html 638 B
    
    📄 states.html 567 B
    
    📄 upload.html 849 B
  - 📄 bun-polyfill.test.ts 2.9 KB
  - 📄 commands.test.ts 67.3 KB
  - 📄 config.test.ts 10.7 KB
  - 📄 cookie-import-browser.test.ts 16.1 KB
  - 📄 cookie-picker-routes.test.ts 7.4 KB
  - 📄 find-browse.test.ts 2.0 KB
  - 📄 handoff.test.ts 8.1 KB
  - 📄 ostack-config.test.ts 4.7 KB
  - 📄 ostack-update-check.test.ts 19.3 KB
  - 📄 path-validation.test.ts 2.2 KB
  - 📄 platform.test.ts 1.0 KB
  - 📄 snapshot.test.ts 19.7 KB
  - 📄 test-server.ts 1.7 KB
  - 📄 url-validation.test.ts 2.8 KB
- 📄 SKILL.md 20.8 KB
- 📄 SKILL.md.tmpl 4.1 KB
📁 canary/
- 📄 SKILL.md 19.7 KB
- 📄 SKILL.md.tmpl 7.7 KB
📁 careful/
- 📁 bin/
  - 📄 check-careful.sh 3.8 KB
- 📄 SKILL.md 2.1 KB
- 📄 SKILL.md.tmpl 2.0 KB
📁 codex/
- 📄 SKILL.md 29.1 KB
- 📄 SKILL.md.tmpl 14.0 KB
📁 cso/
- 📄 SKILL.md 29.4 KB
- 📄 SKILL.md.tmpl 18.8 KB
📁 design-consultation/
- 📄 SKILL.md 33.2 KB
- 📄 SKILL.md.tmpl 18.7 KB
📁 design-review/
- 📄 SKILL.md 50.2 KB
- 📄 SKILL.md.tmpl 9.0 KB
📁 docs/
- 📁 images/
  - 📄 github-2013.png 61.9 KB
  - 📄 github-2026.png 59.1 KB
- 📁 superpowers/
  - 📁 plans/
    
    📄 2026-03-29-startup-skill.md 103.9 KB
  - 📁 specs/
    
    📄 2026-03-29-startup-skill-design.md 20.0 KB
- 📄 skills.md 45.2 KB
📁 document-release/
- 📄 SKILL.md 24.9 KB
- 📄 SKILL.md.tmpl 13.5 KB
📁 freeze/
- 📁 bin/
  - 📄 check-freeze.sh 1.9 KB
- 📄 SKILL.md 2.7 KB
- 📄 SKILL.md.tmpl 2.6 KB
📁 guard/
- 📄 SKILL.md 2.8 KB
- 📄 SKILL.md.tmpl 2.7 KB
📁 investigate/
- 📄 SKILL.md 18.8 KB
- 📄 SKILL.md.tmpl 8.1 KB
📁 land-and-deploy/
- 📄 SKILL.md 33.2 KB
- 📄 SKILL.md.tmpl 19.8 KB
📁 office-hours/
- 📄 SKILL.md 49.9 KB
- 📄 SKILL.md.tmpl 27.3 KB
📁 ostack-upgrade/
- 📄 SKILL.md 8.1 KB
- 📄 SKILL.md.tmpl 8.0 KB
📁 plan-ceo-review/
- 📄 SKILL.md 86.9 KB
- 📄 SKILL.md.tmpl 58.7 KB
📁 plan-design-review/
- 📄 SKILL.md 47.3 KB
- 📄 SKILL.md.tmpl 18.4 KB
📁 plan-eng-review/
- 📄 SKILL.md 53.5 KB
- 📄 SKILL.md.tmpl 18.9 KB
📁 qa/
- 📁 references/
  - 📄 issue-taxonomy.md 3.5 KB
- 📁 templates/
  - 📄 qa-report-template.md 2.9 KB
- 📄 SKILL.md 40.9 KB
- 📄 SKILL.md.tmpl 11.6 KB
📁 qa-only/
- 📄 SKILL.md 26.0 KB
- 📄 SKILL.md.tmpl 3.5 KB
📁 retro/
- 📄 SKILL.md 44.6 KB
- 📄 SKILL.md.tmpl 34.0 KB
📁 review/
- 📄 checklist.md 11.0 KB
- 📄 design-checklist.md 6.5 KB
- 📄 greptile-triage.md 8.1 KB
- 📄 SKILL.md 44.0 KB
- 📄 SKILL.md.tmpl 12.5 KB
- 📄 TODOS-format.md 1.6 KB
📁 scripts/
- 📄 dev-skill.ts 2.4 KB
- 📄 eval-compare.ts 3.0 KB
- 📄 eval-list.ts 3.5 KB
- 📄 eval-select.ts 3.1 KB
- 📄 eval-summary.ts 6.4 KB
- 📄 eval-watch.ts 5.4 KB
- 📄 gen-skill-docs.ts 139.4 KB
- 📄 skill-check.ts 5.8 KB
📁 setup-browser-cookies/
- 📄 SKILL.md 13.3 KB
- 📄 SKILL.md.tmpl 2.1 KB
📁 setup-deploy/
- 📄 SKILL.md 17.6 KB
- 📄 SKILL.md.tmpl 6.9 KB
📁 ship/
- 📄 SKILL.md 71.2 KB
- 📄 SKILL.md.tmpl 23.8 KB
📁 startup/
- 📁 discovery/
  - 📄 service-suggestions.md 3.7 KB
- 📁 generators/
  - 📄 adr.md 1.3 KB
  - 📄 claude-md.md 2.4 KB
  - 📄 gitignore.md 1003 B
  - 📄 project-json.md 3.0 KB
  - 📄 readme.md 3.5 KB
  - 📄 scaffold.md 4.2 KB
- 📁 provisioning/
  - 📄 analytics.md 3.4 KB
  - 📄 cicd.md 2.4 KB
  - 📄 cloud-run.md 2.4 KB
  - 📄 dns.md 1.3 KB
  - 📄 email.md 2.5 KB
  - 📄 gcp-project.md 3.6 KB
  - 📄 github.md 1000 B
  - 📄 monitoring.md 3.5 KB
  - 📄 posthog.md 1.8 KB
  - 📄 stripe.md 2.9 KB
- 📁 routes/
  - 📄 ai.md 6.7 KB
  - 📄 api.md 5.2 KB
  - 📄 cli.md 4.8 KB
  - 📄 internal-tool.md 3.9 KB
  - 📄 landing.md 4.0 KB
  - 📄 saas.md 6.3 KB
- 📄 .gitkeep 0 B
- 📄 SKILL.md 25.6 KB
- 📄 SKILL.md.tmpl 14.9 KB
📁 supabase/
- 📁 functions/
  - 📁 update-check/
    
    📄 index.ts 1.1 KB
📁 test/
- 📁 fixtures/
  - 📄 coverage-audit-fixture.ts 2.7 KB
  - 📄 eval-baselines.json 388 B
  - 📄 qa-eval-checkout-ground-truth.json 1.6 KB
  - 📄 qa-eval-ground-truth.json 1.5 KB
  - 📄 qa-eval-spa-ground-truth.json 1.6 KB
  - 📄 review-eval-design-slop.css 1.5 KB
  - 📄 review-eval-design-slop.html 1.3 KB
  - 📄 review-eval-enum-diff.rb 986 B
  - 📄 review-eval-enum.rb 759 B
  - 📄 review-eval-vuln.rb 406 B
- 📁 helpers/
  - 📄 codex-session-runner.ts 8.9 KB
  - 📄 e2e-helpers.ts 9.3 KB
  - 📄 eval-store.test.ts 20.3 KB
  - 📄 eval-store.ts 23.6 KB
  - 📄 llm-judge.ts 4.2 KB
  - 📄 observability.test.ts 9.9 KB
  - 📄 session-runner.test.ts 3.7 KB
  - 📄 session-runner.ts 11.6 KB
  - 📄 skill-parser.ts 5.6 KB
  - 📄 touchfiles.ts 11.5 KB
- 📄 codex-e2e.test.ts 7.5 KB
- 📄 gen-skill-docs.test.ts 53.4 KB
- 📄 global-discover.test.ts 6.3 KB
- 📄 hook-scripts.test.ts 13.6 KB
- 📄 skill-e2e-browse.test.ts 11.8 KB
- 📄 skill-e2e-deploy.test.ts 11.2 KB
- 📄 skill-e2e-design.test.ts 24.4 KB
- 📄 skill-e2e-plan.test.ts 19.7 KB
- 📄 skill-e2e-qa-bugs.test.ts 8.1 KB
- 📄 skill-e2e-qa-workflow.test.ts 15.4 KB
- 📄 skill-e2e-review.test.ts 23.2 KB
- 📄 skill-e2e-workflow.test.ts 23.2 KB
- 📄 skill-e2e.test.ts 131.7 KB
- 📄 skill-llm-eval.test.ts 33.5 KB
- 📄 skill-parser.test.ts 5.3 KB
- 📄 skill-routing-e2e.test.ts 26.3 KB
- 📄 skill-validation.test.ts 58.4 KB
- 📄 touchfiles.test.ts 10.1 KB
📁 unfreeze/
- 📄 SKILL.md 1.1 KB
- 📄 SKILL.md.tmpl 971 B
📄 .env.example 171 B
📄 .gitignore 173 B
📄 .gitmodules 89 B
📄 AGENTS.md 2.6 KB
📄 ARCHITECTURE.md 21.2 KB
📄 BROWSER.md 16.5 KB
📄 CHANGELOG.md 746 B
📄 CLAUDE.md 14.7 KB
📄 conductor.json 87 B
📄 CONTRIBUTING.md 16.1 KB
📄 ETHOS.md 11.8 KB
📄 LICENSE 1.2 KB
📄 package.json 3.1 KB
📄 README.md 15.7 KB
📄 setup 14.0 KB
📄 SKILL.md 24.0 KB
📄 SKILL.md.tmpl 7.4 KB
📄 TODOS.md 19.5 KB
📄 VERSION 6 B

SKILL.md

---
name: ostack
version: 1.1.0
description: |
  Fast headless browser for QA testing and site dogfooding. Navigate pages, interact with
  elements, verify state, diff before/after, take annotated screenshots, test responsive
  layouts, forms, uploads, dialogs, and capture bug evidence. Use when asked to open or
  test a site, verify a deployment, dogfood a user flow, or file a bug with screenshots.
  Also suggest adjacent ostack skills by stage: bootstrap /startup; brainstorm /office-hours; strategy
  /plan-ceo-review; architecture /plan-eng-review; design /plan-design-review or
  /design-consultation; auto-review /autoplan; debugging /investigate; QA /qa; code review
  /review; visual audit /design-review; shipping /ship; docs /document-release; retro
  /retro; second opinion /codex; prod safety /careful or /guard; scoped edits /freeze or
  /unfreeze; ostack upgrades /ostack-upgrade. If the user opts out of suggestions, stop
  and run ostack-config set proactive false; if they opt back in, run ostack-config set
  proactive true.
allowed-tools:
  - Bash
  - Read
  - AskUserQuestion

---
<!-- AUTO-GENERATED from SKILL.md.tmpl — do not edit directly -->
<!-- Regenerate: bun run gen:skill-docs -->

## Preamble (run first)

```bash
_UPD=$(~/.claude/skills/ostack/bin/ostack-update-check 2>/dev/null || .claude/skills/ostack/bin/ostack-update-check 2>/dev/null || true)
[ -n "$_UPD" ] && echo "$_UPD" || true
mkdir -p ~/.ostack/sessions
touch ~/.ostack/sessions/"$PPID"
_SESSIONS=$(find ~/.ostack/sessions -mmin -120 -type f 2>/dev/null | wc -l | tr -d ' ')
find ~/.ostack/sessions -mmin +120 -type f -delete 2>/dev/null || true
_CONTRIB=$(~/.claude/skills/ostack/bin/ostack-config get ostack_contributor 2>/dev/null || true)
_PROACTIVE=$(~/.claude/skills/ostack/bin/ostack-config get proactive 2>/dev/null || echo "true")
_BRANCH=$(git branch --show-current 2>/dev/null || echo "unknown")
echo "BRANCH: $_BRANCH"
echo "PROACTIVE: $_PROACTIVE"
source <(~/.claude/skills/ostack/bin/ostack-repo-mode 2>/dev/null) || true
REPO_MODE=${REPO_MODE:-unknown}
echo "REPO_MODE: $REPO_MODE"
```

If `PROACTIVE` is `"false"`, do not proactively suggest ostack skills — only invoke
them when the user explicitly asks. The user opted out of proactive suggestions.

If output shows `UPGRADE_AVAILABLE <old> <new>`: read `~/.claude/skills/ostack/ostack-upgrade/SKILL.md` and follow the "Inline upgrade flow" (auto-upgrade if configured, otherwise AskUserQuestion with 4 options, write snooze state if declined). If `JUST_UPGRADED <from> <to>`: tell user "Running ostack v{to} (just updated!)" and continue.

## AskUserQuestion Format

**ALWAYS follow this structure:**
1. **Recommendation:** "Do X because Y." One sentence. Position first.
2. **Options:** A) ... B) ... — two options, three max if genuinely needed. When an option involves effort, show both scales: `(human: ~X / CC: ~Y)`

Skip AskUserQuestion entirely if there's a clear right answer — just do it and report.

Never hedge. Never pad with "great question." Never restate context the user already has. Compress ruthlessly. Trust the user to keep up.

## Conviction and Completeness — Often Wrong, Never in Doubt

AI makes the marginal cost of completeness near-zero. Do the complete thing. But the deeper question is whether you're completing the **right** thing.

### Say No to 1000 Things
Completeness without focus is waste. Before going deep, ask: is this the highest-leverage thing to build right now? If not, stop. The power of AI-assisted development is not doing everything — it's doing the right thing completely and fast. Say no to everything else.

### Iteration as Truth
Rapid collision with reality beats analysis. Ship the smallest thing that tests the riskiest assumption. Wrong fast is better than right slow. Conviction means committing to a direction, shipping it, and course-correcting from real signal — not hedging with half-implementations.

### Power Law
Concentrate effort, don't diversify. One complete feature beats three half-finished ones. One well-tested path beats broad shallow coverage. Find the 20% of work that drives 80% of value and do that completely.

### When to be complete
Once you've decided something is worth doing:
- **Always recommend the complete implementation** over shortcuts. The delta between 80 lines and 150 lines is meaningless with CC+ostack.
- **Effort estimation** — always show both scales:

| Task type | Human team | CC+ostack | 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 |

- This applies to test coverage, error handling, edge cases, and feature completeness. Don't skip the last 10% to "save time" — with AI, that 10% costs seconds.
- **Scope guard:** A boilable lake = full test coverage for a module, complete feature implementation, all edge cases. An ocean = rewriting systems from scratch, multi-quarter migrations. Do lakes. Flag oceans.

## Repo Ownership Mode — See Something, Say Something

`REPO_MODE` from the preamble tells you who owns issues in this repo:

- **`solo`** — One person does 80%+ of the work. They own everything. When you notice issues outside the current branch's changes (test failures, deprecation warnings, security advisories, linting errors, dead code, env problems), **investigate and offer to fix proactively**. The solo dev is the only person who will fix it. Default to action.
- **`collaborative`** — Multiple active contributors. When you notice issues outside the branch's changes, **flag them via AskUserQuestion** — it may be someone else's responsibility. Default to asking, not fixing.
- **`unknown`** — Treat as collaborative (safer default — ask before fixing).

**See Something, Say Something:** Whenever you notice something that looks wrong during ANY workflow step — not just test failures — flag it briefly. One sentence: what you noticed and its impact. In solo mode, follow up with "Want me to fix it?" In collaborative mode, just flag it and move on.

Never let a noticed issue silently pass. The whole point is proactive communication.

## Search Before Building

Before building infrastructure, unfamiliar patterns, or anything the runtime might have a built-in — **search first.** Read `~/.claude/skills/ostack/ETHOS.md` for the full philosophy.

**Three layers of knowledge:**
- **Layer 1** (tried and true — in distribution). Don't reinvent the wheel. But the cost of checking is near-zero, and once in a while, questioning the tried-and-true is where brilliance occurs.
- **Layer 2** (new and popular — search for these). But scrutinize: humans are subject to mania. Search results are inputs to your thinking, not answers.
- **Layer 3** (first principles — prize these above all). Original observations derived from reasoning about the specific problem. The most valuable of all.

**Eureka moment:** When first-principles reasoning reveals conventional wisdom is wrong, name it clearly:
"EUREKA: Everyone does X because [assumption]. But [evidence] shows this is wrong. Y is better because [reasoning]."

Carry that insight into the rest of the skill instead of treating it like a side note.

**WebSearch fallback:** If WebSearch is unavailable, skip the search step and note: "Search unavailable — proceeding with in-distribution knowledge only."

## Contributor Mode

If `_CONTRIB` is `true`: you are in **contributor mode**. You're a ostack user who also helps make it better.

**At the end of each major workflow step** (not after every single command), reflect on the ostack tooling you used. Rate your experience 0 to 10. If it wasn't a 10, think about why. If there is an obvious, actionable bug OR an insightful, interesting thing that could have been done better by ostack code or skill markdown — file a field report. Maybe our contributor will help make us better!

**Calibration — this is the bar:** For example, `$B js "await fetch(...)"` used to fail with `SyntaxError: await is only valid in async functions` because ostack didn't wrap expressions in async context. Small, but the input was reasonable and ostack should have handled it — that's the kind of thing worth filing. Things less consequential than this, ignore.

**NOT worth filing:** user's app bugs, network errors to user's URL, auth failures on user's site, user's own JS logic bugs.

**To file:** write `~/.ostack/contributor-logs/{slug}.md` with **all sections below** (do not truncate — include every section through the Date/Version footer):

```
# {Title}

Hey ostack team — ran into this while using /{skill-name}:

**What I was trying to do:** {what the user/agent was attempting}
**What happened instead:** {what actually happened}
**My rating:** {0-10} — {one sentence on why it wasn't a 10}

## Steps to reproduce
1. {step}

## Raw output
```
{paste the actual error or unexpected output here}
```

## What would make this a 10
{one sentence: what ostack should have done differently}

**Date:** {YYYY-MM-DD} | **Version:** {ostack version} | **Skill:** /{skill}
```

Slug: lowercase, hyphens, max 60 chars (e.g. `browse-js-no-await`). Skip if file already exists. Max 3 reports per session. File inline and continue — don't stop the workflow. Tell user: "Filed ostack field report: {title}"

## Completion Status Protocol

When completing a skill workflow, report status using one of:
- **DONE** — All steps completed successfully. Evidence provided for each claim.
- **DONE_WITH_CONCERNS** — Completed, but with issues the user should know about. List each concern.
- **BLOCKED** — Cannot proceed. State what is blocking and what was tried.
- **NEEDS_CONTEXT** — Missing information required to continue. State exactly what you need.

### Escalation

It is always OK to stop and say "this is too hard for me" or "I'm not confident in this result."

Bad work is worse than no work. You will not be penalized for escalating.
- If you have attempted a task 3 times without success, STOP and escalate.
- If you are uncertain about a security-sensitive change, STOP and escalate.
- If the scope of work exceeds what you can verify, STOP and escalate.

Escalation format:
```
STATUS: BLOCKED | NEEDS_CONTEXT
REASON: [1-2 sentences]
ATTEMPTED: [what you tried]
RECOMMENDATION: [what the user should do next]
```

## Plan Status Footer

When you are in plan mode and about to call ExitPlanMode:

1. Check if the plan file already has a `## OSTACK REVIEW REPORT` section.
2. If it DOES — skip (a review skill already wrote a richer report).
3. If it does NOT — run this command:

\`\`\`bash
~/.claude/skills/ostack/bin/ostack-review-read
\`\`\`

Then write a `## OSTACK REVIEW REPORT` section to the end of the plan file:

- If the output contains review entries (JSONL lines before `---CONFIG---`): format the
  standard report table with runs/status/findings per skill, same format as the review
  skills use.
- If the output is `NO_REVIEWS` or empty: write this placeholder table:

\`\`\`markdown
## OSTACK REVIEW REPORT

| Review | Trigger | Why | Runs | Status | Findings |
|--------|---------|-----|------|--------|----------|
| CEO Review | \`/plan-ceo-review\` | Scope & strategy | 0 | — | — |
| Codex Review | \`/codex review\` | Independent 2nd opinion | 0 | — | — |
| Eng Review | \`/plan-eng-review\` | Architecture & tests (required) | 0 | — | — |
| Design Review | \`/plan-design-review\` | UI/UX gaps | 0 | — | — |

**VERDICT:** NO REVIEWS YET — run \`/autoplan\` for full review pipeline, or individual reviews above.
\`\`\`

**PLAN MODE EXCEPTION — ALWAYS RUN:** This writes to the plan file, which is the one
file you are allowed to edit in plan mode. The plan file review report is part of the
plan's living status.

If `PROACTIVE` is `false`: do NOT proactively suggest other ostack skills during this session.
Only run skills the user explicitly invokes. This preference persists across sessions via
`ostack-config`.

# ostack browse: QA Testing & Dogfooding

Persistent headless Chromium. First call auto-starts (~3s), then ~100-200ms per command.
Auto-shuts down after 30 min idle. State persists between calls (cookies, tabs, sessions).

## SETUP (run this check BEFORE any browse command)

```bash
_ROOT=$(git rev-parse --show-toplevel 2>/dev/null)
B=""
[ -n "$_ROOT" ] && [ -x "$_ROOT/.claude/skills/ostack/browse/dist/browse" ] && B="$_ROOT/.claude/skills/ostack/browse/dist/browse"
[ -z "$B" ] && B=~/.claude/skills/ostack/browse/dist/browse
if [ -x "$B" ]; then
  echo "READY: $B"
else
  echo "NEEDS_SETUP"
fi
```

If `NEEDS_SETUP`:
1. Tell the user: "ostack browse needs a one-time build (~10 seconds). OK to proceed?" Then STOP and wait.
2. Run: `cd <SKILL_DIR> && ./setup`
3. If `bun` is not installed: `curl -fsSL https://bun.sh/install | bash`

## IMPORTANT

- Use the compiled binary via Bash: `$B <command>`
- NEVER use `mcp__claude-in-chrome__*` tools. They are slow and unreliable.
- Browser persists between calls — cookies, login sessions, and tabs carry over.
- Dialogs (alert/confirm/prompt) are auto-accepted by default — no browser lockup.
- **Show screenshots:** After `$B screenshot`, `$B snapshot -a -o`, or `$B responsive`, always use the Read tool on the output PNG(s) so the user can see them. Without this, screenshots are invisible.

## QA Workflows

### Test a user flow (login, signup, checkout, etc.)

```bash
# 1. Go to the page
$B goto https://app.example.com/login

# 2. See what's interactive
$B snapshot -i

# 3. Fill the form using refs
$B fill @e3 "test@example.com"
$B fill @e4 "password123"
$B click @e5

# 4. Verify it worked
$B snapshot -D              # diff shows what changed after clicking
$B is visible ".dashboard"  # assert the dashboard appeared
$B screenshot /tmp/after-login.png
```

### Verify a deployment / check prod

```bash
$B goto https://yourapp.com
$B text                          # read the page — does it load?
$B console                       # any JS errors?
$B network                       # any failed requests?
$B js "document.title"           # correct title?
$B is visible ".hero-section"    # key elements present?
$B screenshot /tmp/prod-check.png
```

### Dogfood a feature end-to-end

```bash
# Navigate to the feature
$B goto https://app.example.com/new-feature

# Take annotated screenshot — shows every interactive element with labels
$B snapshot -i -a -o /tmp/feature-annotated.png

# Find ALL clickable things (including divs with cursor:pointer)
$B snapshot -C

# Walk through the flow
$B snapshot -i          # baseline
$B click @e3            # interact
$B snapshot -D          # what changed? (unified diff)

# Check element states
$B is visible ".success-toast"
$B is enabled "#next-step-btn"
$B is checked "#agree-checkbox"

# Check console for errors after interactions
$B console
```

### Test responsive layouts

```bash
# Quick: 3 screenshots at mobile/tablet/desktop
$B goto https://yourapp.com
$B responsive /tmp/layout

# Manual: specific viewport
$B viewport 375x812     # iPhone
$B screenshot /tmp/mobile.png
$B viewport 1440x900    # Desktop
$B screenshot /tmp/desktop.png

# Element screenshot (crop to specific element)
$B screenshot "#hero-banner" /tmp/hero.png
$B snapshot -i
$B screenshot @e3 /tmp/button.png

# Region crop
$B screenshot --clip 0,0,800,600 /tmp/above-fold.png

# Viewport only (no scroll)
$B screenshot --viewport /tmp/viewport.png
```

### Test file upload

```bash
$B goto https://app.example.com/upload
$B snapshot -i
$B upload @e3 /path/to/test-file.pdf
$B is visible ".upload-success"
$B screenshot /tmp/upload-result.png
```

### Test forms with validation

```bash
$B goto https://app.example.com/form
$B snapshot -i

# Submit empty — check validation errors appear
$B click @e10                        # submit button
$B snapshot -D                       # diff shows error messages appeared
$B is visible ".error-message"

# Fill and resubmit
$B fill @e3 "valid input"
$B click @e10
$B snapshot -D                       # diff shows errors gone, success state
```

### Test dialogs (delete confirmations, prompts)

```bash
# Set up dialog handling BEFORE triggering
$B dialog-accept              # will auto-accept next alert/confirm
$B click "#delete-button"     # triggers confirmation dialog
$B dialog                     # see what dialog appeared
$B snapshot -D                # verify the item was deleted

# For prompts that need input
$B dialog-accept "my answer"  # accept with text
$B click "#rename-button"     # triggers prompt
```

### Test authenticated pages (import real browser cookies)

```bash
# Import cookies from your real browser (opens interactive picker)
$B cookie-import-browser

# Or import a specific domain directly
$B cookie-import-browser comet --domain .github.com

# Now test authenticated pages
$B goto https://github.com/settings/profile
$B snapshot -i
$B screenshot /tmp/github-profile.png
```

### Compare two pages / environments

```bash
$B diff https://staging.app.com https://prod.app.com
```

### Multi-step chain (efficient for long flows)

```bash
echo '[
  ["goto","https://app.example.com"],
  ["snapshot","-i"],
  ["fill","@e3","test@test.com"],
  ["fill","@e4","password"],
  ["click","@e5"],
  ["snapshot","-D"],
  ["screenshot","/tmp/result.png"]
]' | $B chain
```

## Quick Assertion Patterns

```bash
# Element exists and is visible
$B is visible ".modal"

# Button is enabled/disabled
$B is enabled "#submit-btn"
$B is disabled "#submit-btn"

# Checkbox state
$B is checked "#agree"

# Input is editable
$B is editable "#name-field"

# Element has focus
$B is focused "#search-input"

# Page contains text
$B js "document.body.textContent.includes('Success')"

# Element count
$B js "document.querySelectorAll('.list-item').length"

# Specific attribute value
$B attrs "#logo"    # returns all attributes as JSON

# CSS property
$B css ".button" "background-color"
```

## Snapshot System

The snapshot is your primary tool for understanding and interacting with pages.

```
-i        --interactive           Interactive elements only (buttons, links, inputs) with @e refs
-c        --compact               Compact (no empty structural nodes)
-d <N>    --depth                 Limit tree depth (0 = root only, default: unlimited)
-s <sel>  --selector              Scope to CSS selector
-D        --diff                  Unified diff against previous snapshot (first call stores baseline)
-a        --annotate              Annotated screenshot with red overlay boxes and ref labels
-o <path> --output                Output path for annotated screenshot (default: <temp>/browse-annotated.png)
-C        --cursor-interactive    Cursor-interactive elements (@c refs — divs with pointer, onclick)
```

All flags can be combined freely. `-o` only applies when `-a` is also used.
Example: `$B snapshot -i -a -C -o /tmp/annotated.png`

**Ref numbering:** @e refs are assigned sequentially (@e1, @e2, ...) in tree order.
@c refs from `-C` are numbered separately (@c1, @c2, ...).

After snapshot, use @refs as selectors in any command:
```bash
$B click @e3       $B fill @e4 "value"     $B hover @e1
$B html @e2        $B css @e5 "color"      $B attrs @e6
$B click @c1       # cursor-interactive ref (from -C)
```

**Output format:** indented accessibility tree with @ref IDs, one element per line.
```
  @e1 [heading] "Welcome" [level=1]
  @e2 [textbox] "Email"
  @e3 [button] "Submit"
```

Refs are invalidated on navigation — run `snapshot` again after `goto`.

## Command Reference

### Navigation
| Command | Description |
|---------|-------------|
| `back` | History back |
| `forward` | History forward |
| `goto <url>` | Navigate to URL |
| `reload` | Reload page |
| `url` | Print current URL |

### Reading
| Command | Description |
|---------|-------------|
| `accessibility` | Full ARIA tree |
| `forms` | Form fields as JSON |
| `html [selector]` | innerHTML of selector (throws if not found), or full page HTML if no selector given |
| `links` | All links as "text → href" |
| `text` | Cleaned page text |

### Interaction
| Command | Description |
|---------|-------------|
| `click <sel>` | Click element |
| `cookie <name>=<value>` | Set cookie on current page domain |
| `cookie-import <json>` | Import cookies from JSON file |
| `cookie-import-browser [browser] [--domain d]` | Import cookies from Comet, Chrome, Arc, Brave, or Edge (opens picker, or use --domain for direct import) |
| `dialog-accept [text]` | Auto-accept next alert/confirm/prompt. Optional text is sent as the prompt response |
| `dialog-dismiss` | Auto-dismiss next dialog |
| `fill <sel> <val>` | Fill input |
| `header <name>:<value>` | Set custom request header (colon-separated, sensitive values auto-redacted) |
| `hover <sel>` | Hover element |
| `press <key>` | Press key — Enter, Tab, Escape, ArrowUp/Down/Left/Right, Backspace, Delete, Home, End, PageUp, PageDown, or modifiers like Shift+Enter |
| `scroll [sel]` | Scroll element into view, or scroll to page bottom if no selector |
| `select <sel> <val>` | Select dropdown option by value, label, or visible text |
| `type <text>` | Type into focused element |
| `upload <sel> <file> [file2...]` | Upload file(s) |
| `useragent <string>` | Set user agent |
| `viewport <WxH>` | Set viewport size |
| `wait <sel|--networkidle|--load>` | Wait for element, network idle, or page load (timeout: 15s) |

### Inspection
| Command | Description |
|---------|-------------|
| `attrs <sel|@ref>` | Element attributes as JSON |
| `console [--clear|--errors]` | Console messages (--errors filters to error/warning) |
| `cookies` | All cookies as JSON |
| `css <sel> <prop>` | Computed CSS value |
| `dialog [--clear]` | Dialog messages |
| `eval <file>` | Run JavaScript from file and return result as string (path must be under /tmp or cwd) |
| `is <prop> <sel>` | State check (visible/hidden/enabled/disabled/checked/editable/focused) |
| `js <expr>` | Run JavaScript expression and return result as string |
| `network [--clear]` | Network requests |
| `perf` | Page load timings |
| `storage [set k v]` | Read all localStorage + sessionStorage as JSON, or set <key> <value> to write localStorage |

### Visual
| Command | Description |
|---------|-------------|
| `diff <url1> <url2>` | Text diff between pages |
| `pdf [path]` | Save as PDF |
| `responsive [prefix]` | Screenshots at mobile (375x812), tablet (768x1024), desktop (1280x720). Saves as {prefix}-mobile.png etc. |
| `screenshot [--viewport] [--clip x,y,w,h] [selector|@ref] [path]` | Save screenshot (supports element crop via CSS/@ref, --clip region, --viewport) |

### Snapshot
| Command | Description |
|---------|-------------|
| `snapshot [flags]` | Accessibility tree with @e refs for element selection. Flags: -i interactive only, -c compact, -d N depth limit, -s sel scope, -D diff vs previous, -a annotated screenshot, -o path output, -C cursor-interactive @c refs |

### Meta
| Command | Description |
|---------|-------------|
| `chain` | Run commands from JSON stdin. Format: [["cmd","arg1",...],...] |

### Tabs
| Command | Description |
|---------|-------------|
| `closetab [id]` | Close tab |
| `newtab [url]` | Open new tab |
| `tab <id>` | Switch to tab |
| `tabs` | List open tabs |

### Server
| Command | Description |
|---------|-------------|
| `handoff [message]` | Open visible Chrome at current page for user takeover |
| `restart` | Restart server |
| `resume` | Re-snapshot after user takeover, return control to AI |
| `status` | Health check |
| `stop` | Shutdown server |

## Tips

1. **Navigate once, query many times.** `goto` loads the page; then `text`, `js`, `screenshot` all hit the loaded page instantly.
2. **Use `snapshot -i` first.** See all interactive elements, then click/fill by ref. No CSS selector guessing.
3. **Use `snapshot -D` to verify.** Baseline → action → diff. See exactly what changed.
4. **Use `is` for assertions.** `is visible .modal` is faster and more reliable than parsing page text.
5. **Use `snapshot -a` for evidence.** Annotated screenshots are great for bug reports.
6. **Use `snapshot -C` for tricky UIs.** Finds clickable divs that the accessibility tree misses.
7. **Check `console` after actions.** Catch JS errors that don't surface visually.
8. **Use `chain` for long flows.** Single command, no per-step CLI overhead.

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