Borrowing it
Nothing to install: this file belongs to ayhanmalkoc/pi-mono. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/ayhanmalkoc/pi-mono/dev/.pi/skills/bowser/SKILL.mdgit clone --depth 1 https://github.com/ayhanmalkoc/pi-monoWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/ayhanmalkoc/pi-mono/bowser)<a href="https://agentmods.dev/skills/ayhanmalkoc/pi-mono/bowser"><img src="https://agentmods.dev/badge/skills/ayhanmalkoc/pi-mono/bowser/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/ayhanmalkoc/pi-mono/bowser"><img src="https://agentmods.dev/badge/skills/ayhanmalkoc/pi-mono/bowser.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What 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 5.1 | $0.00059 | $0.01131 |
| Opus 5 | $0.00030 | $0.00566 |
| Sonnet 5 | $0.00012 | $0.00226 |
| Haiku 4.5 | $0.00006 | $0.00113 |
Grade A, and why
bowser 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 10d ago.
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.
This is a copy
100% identical to bowser — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Playwright Bowser
Purpose
Automate browsers using playwright-cli — a token-efficient CLI for Playwright. Runs headless by default, supports parallel sessions via named sessions (-s=), and doesn't load tool schemas into context.
Key Details
- Headless by default — pass
--headedtoopento see the browser - Parallel sessions — use
-s=<name>to run multiple independent browser instances - Persistent profiles — cookies and storage state preserved between calls
- Token-efficient — CLI-based, no accessibility trees or tool schemas in context
- Vision mode (opt-in) — set
PLAYWRIGHT_MCP_CAPS=visionto receive screenshots as image responses in context instead of just saving to disk
Sessions
Always use a named session. Derive a short, descriptive kebab-case name from the user's prompt. This gives each task a persistent browser profile (cookies, localStorage, history) that accumulates across calls.
# Derive session name from prompt context:
# "test the checkout flow on mystore.com" → -s=mystore-checkout
# "scrape pricing from competitor.com" → -s=competitor-pricing
# "UI test the login page" → -s=login-ui-test
playwright-cli -s=mystore-checkout open https://mystore.com --persistent
playwright-cli -s=mystore-checkout snapshot
playwright-cli -s=mystore-checkout click e12
Managing sessions:
playwright-cli list # list all sessions
playwright-cli close-all # close all sessions
playwright-cli -s=<name> close # close specific session
playwright-cli -s=<name> delete-data # wipe session profile
Quick Reference
Core: open [url], goto <url>, click <ref>, fill <ref> <text>, type <text>, snapshot, screenshot [ref], close
Navigate: go-back, go-forward, reload
Keyboard: press <key>, keydown <key>, keyup <key>
Mouse: mousemove <x> <y>, mousedown, mouseup, mousewheel <dx> <dy>
Tabs: tab-list, tab-new [url], tab-close [index], tab-select <index>
Save: screenshot [ref], pdf, screenshot --filename=f
Storage: state-save, state-load, cookie-*, localstorage-*, sessionstorage-*
Network: route <pattern>, route-list, unroute, network
DevTools: console, run-code <code>, tracing-start/stop, video-start/stop
Sessions: -s=<name> <cmd>, list, close-all, kill-all
Config: open --headed, open --browser=chrome, resize <w> <h>
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.
- 10d ago First seen · 115 lines · 59 tokens per session scan A ffabb1dc974a
bowser is a skill published in the GitHub repository ayhanmalkoc/pi-mono (5 stars, last pushed 6mo ago), licensed MIT. It adds 59 tokens to every session and 1,131 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to bowser, differing in 0 lines, and is treated as a copy.
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