AI & Agents
brw
Last updated 2026-09-08 · benchmark measured 2026-10-26 — deterministic & reproducible
Semantic browser control for AI agents using stable element references over MCP and HTTP.
brw at a glance
brw is a tool that lets AI agents control a real Chrome or Chromium browser through stable element references, using MCP and HTTP APIs, so developers and teams can automate authenticated web tasks.
Good for
- AI agents and harnesses that need to interact with real web pages instead of screenshots
- Developers building agent tools that require access to signed-in browser sessions
- Teams and enterprise users needing authenticated web automation without copying cookies
Questions people ask
What is brw and what does it do?
brw runs a real, visible Chrome instance and exposes it to AI agents through MCP and an HTTP JSON API, letting agents click, type, and read pages using stable element references instead of CSS selectors or screenshots.
Does brw use my existing browser logins?
Yes, brw bridges to an installed, signed-in browser profile (Chrome, Chromium, Edge, Brave, Vivaldi, Opera, or Arc), so agents can use sites you're already logged into while cookies and sessions stay on your machine.
What are brw recipes?
Recipes are deterministic, private browser workflows that turn proven multi-step actions into an immutable, versioned run identified by a semantic version and SHA-256 digest, executed with declared risk and postcondition checks.
What platforms and interfaces does brw support?
brw is available for macOS, Linux, and Windows, and agents connect to it through MCP or HTTP; the current release (v0.16.0) exposes 62 tools.
Is brw open source?
Yes, brw is open source, licensed under AGPL-3.0, and built by Revitt.
Written by Legit.Show from brw.donworks.co.uk on 2026-09-30. It does not change the score.
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Is brw production-ready?
Legit.Show scores brw null out of 100 — the simple average of its 1 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on brw (public-surface assessment), measured from the public surface with no LLM in the scoring path. 1 of the seven frames returned a score; Performance, Accessibility, Security, Reliability, Standards and Discoverability were not measurable on this service and are recorded as null — not as zero. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — not measurable on this service (null — not scored as 0)
- Accessibility — not measurable on this service (null — not scored as 0)
- Security — not measurable on this service (null — not scored as 0)
- Privacy — 25/100How this compares across the catalogue: The Privacy Gap
- Reliability — not measurable on this service (null — not scored as 0)
- Standards — not measurable on this service (null — not scored as 0)
- Discoverability — not measurable on this service (null — not scored as 0)
What we measured
- No Content-Security-Policy and no HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 0 ms to first byte.
- 0 of 0 sampled routes reachable.
- No privacy policy found.
- Sets cookies / loads scripts with no consent prompt.
Who it's for
AI agents and harnesses · Claude/Cursor/Gemini users · Developers building agent tools · Teams needing authenticated web automation · Enterprise users with signed-in workflows
Sources and updates
- Description
- Taken from brw.donworks.co.uk's own website on 2026-09-08.
- Operator
- Don Works and Revitt, as named in brw.donworks.co.uk's terms, privacy page or footer.
- Benchmark
- Measured by Legit.Show from the live site, the way any visitor sees it — with no access to its code or accounts. Same method for every product, and no AI decides the score. Last checked 2026-10-26.
Put together from public information, without brw's involvement. If anything here is wrong, tell us and a person will check it.
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