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Reticle

An MCP server and agent skill that verifies coding-agent work by driving the real running app and returning pass, fail, or couldn't-tell verdicts with the file:line to fix; its listing frames the approach as Jev-style machine-native runtime perception.
See highlightsOpen github.com
Stars
1.3k
Language
TypeScript
Reading time
3 min
Published by
Community
Author
reticlehq
Last verified
Sep 2026

reticlehq/reticle

Organization repository on GitHub

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AI agents can generate code, but still struggle to understand what they build. Reticle brings Jev-style machine-native runtime perception to web & desktop applications.

Forks
208
Last pushed
Updated Oct 2026

Repo stats from the GitHub API, cached Oct 2026.Homepage

About this project

Your AI agent says "done." Reticle checks whether that's true. It drives your real running app, reads what actually happened, and hands back pass · fail · couldn't tell with the file:line to fix. Ask anything, see what's being built, and help decide what ships next. The problem · Demo · What Reticle does · Install · Use it · Community · vs Playwright · Benchmarks · Safe to install · Docs. ⭐ Star the repo · Good first issues · Contribute.

Quoted from the project's README. Read the full README.

Tagscommunitytypescriptmcpcoding-agentagents
Works forJev for Tool callingJev for Verification
Used inJev for Software & DevTools

Highlights

  • Installer registers the MCP server with Claude Code, Cursor, Windsurf, VS Code, Zed, Gemini CLI, and more.
  • Per-project `npx @reticlehq/server init` wires the dev-only SDK and proves a session connected.
  • Returns pass, fail, or couldn't tell plus the file:line to fix, driven from plain-English requests.
  • Dev-only and localhost-only: app data stays local, per the README.
  • Requires Node 20.11+; Codex CLI keeps a TOML config the installer will not rewrite.

Quickstart

bash
curl -fsSL https://raw.githubusercontent.com/reticlehq/reticle/main/install/install.sh | sh
npx @reticlehq/server init
npx @reticlehq/server doctor

Watch out

SDK and adapters are Apache-2.0 while the server is FSL, source-available and converting to Apache-2.0 after two years; requires Node 20.11+ and a running app.

Questions about this entry

Short answers drawn from the linked project or page.

Reactions & coverage

Posts, threads, and videos about this entry from around the web.

X: jev-review: a local-first score loop for coding agents

Reddit: One command to wire Jev into Claude Code, Claude Desktop, and Codex.

X: Decision outputs in Grep

X: Jev in front of the HeyGen MCP

From the Jev guides

Original write-ups on what this entry is for.

From the Jev AI model community

Posts from builders shipping with Jev right now.

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