browser

Zero-config. node .rulesync/scripts/browser.mjs <verb>.

Verbs: nav <url> · snap · click <ref> · fill <ref> <text> · scroll [ref|down|up|N] · wait [ms] · hover <ref> · select <ref> <value> · shot · pdf · stop · doctor · ensure.

• snap = default read (markdown + numbered refs). click/fill need a prior snap.
• Lightpanda default. The rail swaps to Chromium when shot/pdf/trace, win32, missing Lightpanda, probe-fail once, Chromium-first hosts (figma docs/sheets/slides mail.google earth amazon), or a blocked/empty/client-rendered snap. One swap. Do not stop and say you cannot.
• Session/profile: .tmp/grunt/browser/. stop reaps; second stop ok.
• Windows: Chromium even if Lightpanda exists.
• doctor/ensure → node .rulesync/scripts/doctor.mjs or grunt doctor. Engine hints: node .rulesync/scripts/setup.mjs browser. Do not read a README unless doctor/setup is missing; then https://github.com/lovrozagar/grunt#prerequisites (not the consumer README).
• No env. No MCP. No raw Playwright. Spec: .rulesync/reference/browser.md.