Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/nebari-dev/pi-coding-agent-pack/web-browsernpx skills add nebari-dev/pi-coding-agent-pack --skill web-browsergit clone --depth 1 https://github.com/nebari-dev/pi-coding-agent-packWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00062 | $0.00744 |
| Opus 5 | $0.00031 | $0.00372 |
| Sonnet 5 | $0.00012 | $0.00149 |
| Haiku 4.5 | $0.00006 | $0.00074 |
Grade A, and why
web-browser scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Web Browser Skill
Minimal CDP tools for collaborative site exploration.
Start Chrome
./scripts/start.js # Fresh profile
./scripts/start.js --profile # Copy your profile (cookies, logins)
Start Chrome on :9222 with remote debugging.
start.js auto-detects Chrome/Chromium, including Playwright-managed binaries under /opt/ms-playwright and ~/.cache/ms-playwright. Use CHROME_BIN to force a path.
Navigate
./scripts/nav.js https://example.com
./scripts/nav.js https://example.com --new
./scripts/nav.js https://idp.example/auth --url-contains keycloak
Navigate current tab or open new tab.
Targeting flags (supported by nav/eval/screenshot/click/type/wait):
--url-contains <fragment>: select tab whose URL contains fragment--target-id <id>: use specific CDP target id--wait-new-tab: wait for a newly opened tab/page (popup/new-tab auth flows)--timeout-ms <ms>: override timeout
Evaluate JavaScript
./scripts/eval.js 'document.title'
./scripts/eval.js 'document.querySelectorAll("a").length'
./scripts/eval.js --url-contains keycloak 'location.href'
Execute JavaScript in selected tab (async context). Be careful with string escaping; single quotes are easiest.
First-class click/type/wait helpers
./scripts/click.js '#kc-login'
./scripts/type.js '#username' 'nick'
./scripts/type.js '#password' 'ChangeMe1234!'
./scripts/wait.js --url-contains '/hub/home'
./scripts/wait.js --wait-new-tab --url-contains keycloak
These helpers reduce brittle one-off JS snippets and improve auth-flow reliability.
Screenshot
./scripts/screenshot.js
./scripts/screenshot.js --url-contains '/hub/home'
Screenshot selected viewport; prints temp file path.
Pick Elements
./scripts/pick.js "Click the submit button"
Interactive element picker. Click to select, Cmd/Ctrl+Click for multi-select, Enter to finish.
Dismiss Cookie Dialogs
./scripts/dismiss-cookies.js # Accept cookies
./scripts/dismiss-cookies.js --reject # Reject cookies (where possible)
What ships with it
16 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- scripts/cdp.js 5.1 KB runs code
- scripts/click.js 2.7 KB runs code
- scripts/dismiss-cookies.js 14 KB runs code
- scripts/eval.js 1.5 KB runs code
- scripts/logs-tail.js 1.9 KB runs code
- scripts/nav.js 1.8 KB runs code
- scripts/net-summary.js 2.5 KB runs code
- scripts/package-lock.json 756 B
- scripts/package.json 68 B
- scripts/page-target.js 2.6 KB runs code
- scripts/pick.js 5.4 KB runs code
- scripts/screenshot.js 1.2 KB runs code
- scripts/start.js 3.7 KB runs code
- scripts/type.js 2.1 KB runs code
- scripts/wait.js 2.0 KB runs code
- scripts/watch.js 7.2 KB runs code
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday First seen · 114 lines · 62 tokens per session scan A 004bbfd258ba
web-browser is a skill published in the GitHub repository nebari-dev/pi-coding-agent-pack (2 stars, last pushed 6d ago), licensed Apache-2.0. It adds 62 tokens to every session and 744 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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