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 rules/consensys/ask-o11y-plugin/playwright-e2e-testinggit clone --depth 1 https://github.com/Consensys/ask-o11y-pluginWhat 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 | $0.00000 | $0.00273 |
| Opus 5 | $0.00000 | $0.00137 |
| Sonnet 5 | $0.00000 | $0.00055 |
| Haiku 4.5 | $0.00000 | $0.00027 |
Grade A, and why
playwright-e2e-testing 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.
What it actually says
Playwright E2E Testing
Reference: CLAUDE.md is the authoritative source.
Test Locations
- E2E specs in
tests/*.spec.ts
Focus
Test critical user flows: chat, session management, AppConfig, RBAC roles. Limit to 3–5 focused tests per file.
Best Practices
- Use
data-testidselectors fromsrc/components/testIds.ts— not CSS or XPath - Mock external APIs with
page.route()for deterministic tests - Auto-waiting — use Playwright's built-in waiting, avoid explicit
waitForTimeout - Setup in
beforeEach— page navigation and route mocking - Test both success and error scenarios
RBAC Testing
Test RBAC with Admin, Editor, Viewer roles. Viewers must not access write tools.
Run Tests
# Requires running server: nvm use 22 && npm run server
nvm use 22 && npm run e2e
nvm use 22 && npm run e2e -- --grep "test name pattern"
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 · 38 lines · 0 tokens per session scan A 87506cbfdb83
playwright-e2e-testing is a cursor rule published in the GitHub repository Consensys/ask-o11y-plugin (40 stars, last pushed 7d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 273 tokens. 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 2026-08-30.
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vasu-playwright-utils
../../templates/cursor-rules/vasu-playwright-utils.mdc.
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