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/stoneforge-ai/stoneforge/playwright-clinpx skills add stoneforge-ai/stoneforge --skill playwright-cligit clone --depth 1 https://github.com/stoneforge-ai/stoneforgeWhat 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 | $0.00052 | $0.01557 |
| Opus 5 | $0.00026 | $0.00779 |
| Sonnet 5 | $0.00010 | $0.00311 |
| Haiku 4.5 | $0.00005 | $0.00156 |
Grade A, and why
playwright-cli 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 2d 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 playwright-cli — 15 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 — 260 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Browser Automation with playwright-cli
Quick start
# open new browser
playwright-cli open
# navigate to a page
playwright-cli goto https://playwright.dev
# interact with the page using refs from the snapshot
playwright-cli click e15
playwright-cli type "page.click"
playwright-cli press Enter
# take a screenshot
playwright-cli screenshot
# close the browser
playwright-cli close
Commands
Core
playwright-cli open
# open and navigate right away
playwright-cli open https://example.com/
playwright-cli goto https://playwright.dev
playwright-cli type "search query"
playwright-cli click e3
playwright-cli dblclick e7
playwright-cli fill e5 "[email protected]"
playwright-cli drag e2 e8
playwright-cli hover e4
playwright-cli select e9 "option-value"
playwright-cli upload ./document.pdf
playwright-cli check e12
playwright-cli uncheck e12
playwright-cli snapshot
playwright-cli snapshot --filename=after-click.yaml
playwright-cli eval "document.title"
playwright-cli eval "el => el.textContent" e5
playwright-cli dialog-accept
playwright-cli dialog-accept "confirmation text"
playwright-cli dialog-dismiss
playwright-cli resize 1920 1080
playwright-cli close
Navigation
playwright-cli go-back
playwright-cli go-forward
playwright-cli reload
Keyboard
playwright-cli press Enter
playwright-cli press ArrowDown
playwright-cli keydown Shift
playwright-cli keyup Shift
Mouse
playwright-cli mousemove 150 300
playwright-cli mousedown
playwright-cli mousedown right
playwright-cli mouseup
playwright-cli mouseup right
playwright-cli mousewheel 0 100
Save as
playwright-cli screenshot
playwright-cli screenshot e5
playwright-cli screenshot --filename=page.png
playwright-cli pdf --filename=page.pdf
Tabs
playwright-cli tab-list
playwright-cli tab-new
playwright-cli tab-new https://example.com/page
playwright-cli tab-close
playwright-cli tab-close 2
playwright-cli tab-select 0
What ships with it
7 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.
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.
- 2d ago First seen · 260 lines · 52 tokens per session scan A d3d4ae2a2826
playwright-cli is a skill published in the GitHub repository stoneforge-ai/stoneforge (177 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 52 tokens to every session and 1,557 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 playwright-cli, differing in 15 lines, and is treated as a copy.
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