Browser Research

Browser Research Skill

Three Tools, Three Purposes

• gsd-browser = EXTRACTION + AUTOMATION (63 commands, Rust native, fastest, JSON output)
• dev-browser = LEGACY SCRIPTS (QuickJS sandbox, persistent pages, existing scripts)
• Browser Use CLI = VISUAL PROOF (Chrome/146, screenshots for War Room/Ogie)

RULE: gsd-browser for new tasks. dev-browser for existing scripts. Browser Use CLI for visual proof.

gsd-browser Usage (NEW — preferred for new tasks)

# Start daemon for fast repeated commands
gsd-browser daemon start

# Declarative extraction (replaces page.evaluate scripts)
gsd-browser navigate https://example.com --json
gsd-browser extract --schema '{
  "title": {"_selector": "h1"},
  "price": {"_selector": ".price"}
}' --json

# Deterministic element interaction
gsd-browser snapshot
gsd-browser click-ref @v1:e1
gsd-browser fill-ref @v1:e2 --value "data"

# Network control
gsd-browser block-urls "rate-limited-api.com"
gsd-browser mock-route --url "*/api/*" --body '{}' --status 200

# Cleanup
gsd-browser daemon stop

dev-browser Usage (EXISTING scripts — don't change)

dev-browser --headless <<'EOF'
const page = await browser.getPage("research");
await page.goto("https://example.com");
const data = await page.evaluate(() => ({
  title: document.title,
}));
console.log(JSON.stringify(data));
EOF

Key Capabilities

• dev-browser: Named persistent pages, page.snapshotForAI(), page.evaluate(), QuickJS sandbox
• gsd-browser: 63 commands, extract --schema, snapshot refs, network mock, visual-diff, auth vault, daemon mode
• Browser Use CLI: Full Chrome/146, screenshots, visual proof

Where Each Tool Is Used