Reticle
MCP server and dev-only SDK that lets coding agents (Claude Code, Cursor, Codex and other MCP clients) drive your running web or desktop app and return a pass, fail or cannot-tell verdict with the network calls, app state, console output and file:line behind it.
Source: github.com/reticlehq/reticle (about 1.3k stars on 2026-10-20) and reticle.sh. The local dev loop is free and sends nothing off your machine; the hosted platform (run history, the Harness) is "free to start, no credit card required" per reticle.sh. No public paid price list found on 2026-10-20. Supports React, Next.js, Vue, Svelte, Angular, Electron and Tauri per the README; the homepage FAQ says React and Next today. Not yet tested or ranked.
| Website | https://www.reticle.sh |
|---|---|
| Best for | Checking that your coding agent's "done" is actually done |
| Pricing | Not yet verified |
| Free tier | Yes |
| Open source | Yes |
| License | Apache-2.0 (SDK, engine) + FSL-1.1-ALv2 (server, CLI, MCP) |
| Hands-on test | Test coming |
Machine-readable: Markdown · JSON dataset
For makers: add this badge
Reticle is listed on VibeTested. Show it on your site or README; the badge links back to this page. About badges
Alternatives to Reticle
Aider
Open-source AI pair programming in your terminal, works with git and many LLMs.
Amazon Q Developer
AWS's AI assistant for coding, with IDE and CLI integrations.
Amp
Agentic coding tool from Sourcegraph for terminal and editors.
Augment Code
AI coding agent focused on large codebases with a context engine.