--- name: quality-engineering-playwright-cli description: Standardizes token-efficient browser automation via playwright-cli. Use for web verification, navigation, and capturing snapshots/logs. metadata: triggers: keywords: - playwright-cli - browser automation - web verify - browser navigate - page verification --- # 🎭 Playwright CLI (Web Automation) ## **Priority: P1 (HIGH)** > [!IMPORTANT] > **Tier 0 (Infrastructure)**: Browser process management, named sessions, network/console logs. > **Tier 1 (Core Interactions)**: Clicks, fills, and navigation (`open` vs `goto`). > **Tier 2 (Verification)**: Snapshot-based assertions and auth state persistence. ## 🔌 Activation **Triggers**: `playwright-cli`, `browser automation`, `web verify`, `snapshot`, `auth-state.json`. ## 🛠 Core Workflow | Step | Command | Purpose | | :--- | :--- | :--- | | 1 | `playwright-cli -s={ID} open ` | Start **named session**. (Mandatory `-s=`). | | 2 | `playwright-cli -s={ID} snapshot --aria` | **Aria Snapshot**: YAML-like view for LLM reasoning (Best for assertions). | | 3 | `playwright-cli -s={ID} console` | Check for JS errors/warnings. | | 4 | `playwright-cli -s={ID} screenshot` | Visual evidence. Use `--mask ` for dynamic content. | | 5 | `playwright-cli -s={ID} close` | **MANDATORY Cleanup**. | For a sticky header that appears after scrolling, scroll until the header is visible, use `hover` on the header (or its stable role/reference) to establish the visible state, then capture the `screenshot`. Keep the named session open until the evidence is captured. ## 💡 Agent-Native Optimization - **Aria-First**: Use `snapshot --aria` as primary way to "see" page. Filters noise. - **Robust Locators**: Prefer Role-based references (e.g. `button[name="Submit"]`) over fragile CSS classes. - **Visual Stability**: evaluated `document.body.style.animation = 'none'` to freeze animations before capture. ## 🚫 Anti-Patterns (Zero-Tolerance) - **Unnamed Sessions**: Never omit `-s=`. Bare commands collide across concurrent runs. - **Double Open**: Use `open` for first run; `goto` for mid-session navigation. - **Unmasked Snapshots**: Mask clocks/random IDs before comparison to avoid false positives. - **Orphaned Processes**: Always `close` session, even on failure. ## ✅ Evaluation Criteria - **Cleanup Rate**: 100% session closure. - **Assertion Quality**: 90% of assertions use `snapshot` rather than pixels. - **Auth Persistence**: Successful re-use of `state-load` for multi-step flows. ## 🔗 References - **Web Visual Testing**: [common-web-visual-testing](../../common/common-web-visual-testing/SKILL.md) — Methodology for what to verify. - **Anti-Patterns Rationale**: [anti-patterns-rationale](references/anti-patterns-rationale.md) — Why these rules exist. - **Project Context**: [project-context](references/project-context.md) — Project-specific market/VPN/auth patterns. ## Canonical response anchors When this skill applies, preserve the following domain terminology or equivalent concrete examples in the answer when relevant: - 🎭 Playwright CLI (Web Automation) ## Remediation anchors - Remediation anchors: hover, screenshot