DNA News

Act on this, mostly signal

Reticle gives coding agents pass, fail or cannot-tell verdicts from running apps

What to do

Try the dev-only SDK so agents can verify their own UI work.

Why

Production builds exclude the SDK, and the bridge binds to 127.0.0.1.

Read the source at github.com

What the research found

Reticle is an open-source Show HN tool that embeds a dev-only SDK in a running web or desktop app so coding agents (Claude Code, Cursor, Codex, MCP clients) get pass, fail or cannot-tell verdicts; production builds exclude the SDK and the bridge binds to 127.0.0.1.

Claims and how well the evidence supports them

  1. Reticle embeds a dev-only SDK in the app and returns pass, fail or cannot tell verdicts 98%
  2. Production builds do not include the SDK 99%
  3. Bridge listens only on 127.0.0.1 99%
  4. Works with Claude Code, Cursor, Codex and other MCP clients 99%

Evidence

Actionability rated medium.