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 skills add ne11nn/cantos-plugin --skill playwright-cligit clone --depth 1 https://github.com/ne11nn/cantos-pluginWrote 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/ne11nn/cantos-plugin/playwright-cli)<a href="https://agentmods.dev/skills/ne11nn/cantos-plugin/playwright-cli"><img src="https://agentmods.dev/badge/skills/ne11nn/cantos-plugin/playwright-cli/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/ne11nn/cantos-plugin/playwright-cli"><img src="https://agentmods.dev/badge/skills/ne11nn/cantos-plugin/playwright-cli.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 | $0.00030 | $0.02408 |
| Opus 5.5 | $0.00012 | $0.00963 |
| Sonnet 5.5 | $0.00006 | $0.00482 |
| Haiku 4.5 | $0.00003 | $0.00241 |
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 2mo 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.
How it starts
The opening of the file, as written. The whole thing — 353 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Browser Automation with playwright-cli
Always
--headedis mandatory. Always open browsers with--headed. Headless sessions cannot be interrupted — if a page needs sign-in, CAPTCHA, or manual action, the workflow is stuck with no recovery path.--persistentfor auth sessions. Use whenever the page may require login state (Google properties, any site with auth).- Named sessions. Always use
-s=<name>(e.g.-s=maps,-s=research) so sessions are addressable and close cleanly. - Sign-in flow. When auth is needed: open → navigate → tell the user → wait for their confirmation → then continue.
- Headless only when: page is a public URL, no auth, no CAPTCHA risk (e.g. localhost screenshots).
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 (rarely used, as snapshot is more common)
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
# --submit presses Enter after filling the element
playwright-cli fill e5 "[email protected]" --submit
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 eval "document.title"
playwright-cli eval "el => el.textContent" e5
# get element id, class, or any attribute not visible in the snapshot
playwright-cli eval "el => el.id" e5
playwright-cli eval "el => el.getAttribute('data-testid')" e5
playwright-cli dialog-accept
playwright-cli dialog-accept "confirmation text"
playwright-cli dialog-dismiss
playwright-cli resize 1920 1080
playwright-cli close
What ships with it
9 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.
- references/element-attributes.md 665 B
- references/playwright-tests.md 1.6 KB
- references/request-mocking.md 2.1 KB
- references/running-code.md 5.3 KB
- references/session-management.md 3.9 KB
- references/storage-state.md 5.1 KB
- references/test-generation.md 2.4 KB
- references/tracing.md 3.4 KB
- references/video-recording.md 5.3 KB
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.
- 2mo ago First seen · 353 lines · 30 tokens per session scan A 39c8e09f23d1
playwright-cli is a skill published in the GitHub repository ne11nn/cantos-plugin (1 stars, last pushed today), licensed MIT. It adds 30 tokens to every session and 2,408 once invoked, about $0.0001 per session on Opus 5.5. 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.
playwright-cli compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| playwright-cline11nn/cantos-plugin | Skill | 1 | today | MIT | A | 30 | Claude Code |
| proof-e2etonone-ai/tonone | Skill | 77 | 2d ago | MIT | A | 63 | Claude Code |
| url-genkdcube/kdcube | Skill | 27 | yesterday | MIT | A | 18 | Claude Code |
| pawflow-helperallcolor/PawFlow-Agents | Skill | 26 | yesterday | MIT | A | 27 | Claude Code, Codex |
| pm-boardVandanaAjayDubey111/great-pm | Skill | 3 | 1mo ago | MIT | A | 49 | Claude Code, Codex |
| playwrightsaitarrun/Devforge-ai | Skill | 5 | 3mo ago | Apache-2.0 | A | 60 | Claude Code |
| stream-chainspencermarx/open-code-review | Skill | 387 | yesterday | Apache-2.0 | A | 18 | Claude Code |