Agent-Skills.md

Agent Skills: fuse-browser — Efficient Usage

Use when about to call any mcp__fuse-browser__* tool. Routes fetch/crawl/SERP vs live browser session vs screenshot capture, and enforces the 4 ZERO-TOLERANCE rules -- read BEFORE the tool call.

UncategorizedID: fusengine/agents/fuse-browser-usage

Repository

fusengine/agents
FusengineLicense: MIT
345

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pnpm dlx add-skill https://github.com/Fusengine/claude-plugins/tree/HEAD/plugins/ai-pilot/skills/fuse-browser-usage

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plugins/ai-pilot/skills/fuse-browser-usage/SKILL.md

Skill Metadata

Name
fuse-browser-usage
Description
"Use when about to call any mcp__fuse-browser__* tool. Routes fetch/crawl/SERP vs live browser session vs screenshot capture, and enforces the 4 ZERO-TOLERANCE rules -- read BEFORE the tool call."
<objective> This is the canonical doctrine for every `mcp__fuse-browser__*` call: 4 zero-tolerance rules (fast-path first with no browser launch for reading, one session always closed, batch over per-URL loops, deterministic schema-based extraction over manual snapshot parsing), then routing to one of three reference profiles depending on the goal -- research/docs (fetch, crawl, SERP, no pixels), webapp testing (console, network, live interactions), or visual/design (screenshots, responsive + dark mode, regression diffing).

It covers only the raw browser tooling. The full design pipeline (identity -> generate -> audit) is NOT here -- that lives in fuse-design:design-web and the fuse-design:design-review gate. </objective>

fuse-browser — Efficient Usage

Canonical doctrine for every mcp__fuse-browser__* call. Read this skill FIRST, then load the one reference matching your goal. Default engine is patchright (stealth identity auto-generated); the Chromium binary comes from setup.sh.

4 Rules (ZERO TOLERANCE)

  1. Fast-path FIRST (no browser launch, ~10× faster) — browser_fetch / browser_fetch_batch / browser_crawl / browser_serp_batch to read a page, bulk-fetch, crawl a site, or scrape Google SERP. Open a live session ONLY when you need interaction, JS rendering, or pixels.
  2. One session, always closed — browser_open once → reuse the sessionId across browser_navigate calls → browser_close when done. Never leak sessions; the 2-min TTL is a safety net, not a substitute for closing.
  3. Batch over loops — browser_serp_batch (N queries), browser_fetch_batch / browser_shots_batch (N URLs), browser_screenshot { viewports:[...], colorScheme } (responsive + dark in ONE call). Never write a per-URL loop.
  4. Deterministic extraction — browser_extract_schema with containerSelector (card-by-card, correlated fields) over manual browser_snapshot parsing.

Routing — pick the profile, load the reference

| Goal | Profile | Reference | |------|---------|-----------| | Read docs, bulk-fetch, crawl, scrape SERP (no pixels) | Research / docs | references/research-docs.md | | Test a running webapp (console, network, interactions) | Webapp testing | references/webapp-testing.md | | Screenshots, responsive + dark, visual regression | Visual / design | references/visual-design.md |

  • No live session for reading — if you only need text/HTML/data, the answer is always fast-path (profile 1). Never browser_open to read.
  • Validation tools (any profile): browser_visual_diff (regression vs baseline), browser_metrics (real Core Web Vitals), browser_console / browser_network / browser_cookies (runtime + security checks).
  • Full design pipeline is NOT here — for identity → generate → audit, use fuse-design:design-web then the fuse-design:design-review gate. This skill only covers the raw browser tooling.