PawBrowse: open-source MCP halves browser agent round-trips to one per action
Far-Round2092 · reddit · 2026-09-27
Most browser agents drive off screenshots, so every action takes a perceive-then-act pair of full model inferences, doubling tool calls, latency, and token costs. The open-source PawBrowse instead hands the agent a compact table of clickable elements (real names, values, state); refs are stable and every action returns a fresh table, so the agent acts in one round-trip.
- Measured (same task, same model — booking a 4-star Lisbon hotel on Booking.com): 5 agent round-trips vs 10, roughly 2x faster in a round-trip-bound loop and cheaper in tokens
- Drives your real, logged-in Chrome with no remote-debug port, no relaunch, no second model, no API key
- MIT-licensed, built with Claude Code, live on the Chrome Web Store + npm, fully reproducible from the repo
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