Reticle is a verification layer for AI coding agents.
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A dev-only SDK runs inside your web or desktop app and exposes DOM, network, console, routing, and state-store data to agents over MCP, so an agent can perform an action and receive a pass, fail, or cannot-tell verdict backed by evidence and the source line to fix.
- 01
Evidence-backed verdicts (yes/no/unknown) instead of screenshots
- 02
Reads network responses, console, React renders, and stores like Redux, Zustand, TanStack Query, and Pinia
- 03
Saved flows replay deterministically without an AI model
- 04
reticle gate CI check for changes touching verified flows
- 05
MCP integration with Claude Code, Cursor, Codex, Windsurf, VS Code, and Gemini CLI
Freemium
The SDK and MCP server are open source under Apache-2.0; the optional hosted platform (Harness explorer, PR preview testing, dashboard) offers free credits for new accounts.
Best for
Teams using coding agents on React, Next.js, Vue, Svelte, Angular, Electron, or Tauri apps who want agents to prove a change works in the running app before declaring it done.
Not ideal for
Backend-only or non-web projects, and teams that need a traditional authored end-to-end suite as their sole release gate.
A well-targeted inner-loop tool that addresses the 'agent says done but it is broken' problem with deterministic, evidence-based checks, complementing rather than replacing Playwright.
Released v3.9.0 on 2026-10-29 following v3.8.x updates earlier in the week; the project was showcased on Show HN in October 2026.
As of
Is Reticle free?+
Reticle is Freemium. The SDK and MCP server are open source under Apache-2.0; the optional hosted platform (Harness explorer, PR preview testing, dashboard) offers free credits for new accounts. Check the official site for current plans.
Is Reticle open source?+
Reticle is not listed as open source on ai.dosa.dev - it is Freemium.
How much does Reticle cost?+
The SDK and MCP server are open source under Apache-2.0; the optional hosted platform (Harness explorer, PR preview testing, dashboard) offers free credits for new accounts. Pricing changes often - verify on the official site.
Who is Reticle best for?+
Teams using coding agents on React, Next.js, Vue, Svelte, Angular, Electron, or Tauri apps who want agents to prove a change works in the running app before declaring it done.
Who is Reticle not ideal for?+
Backend-only or non-web projects, and teams that need a traditional authored end-to-end suite as their sole release gate.
What are the best Reticle alternatives?+
The closest Reticle alternatives on ai.dosa.dev are GitAuto, AgentDiff, agent-qa - all listed under AI Testing & Quality Assurance.
Who makes Reticle?+
Reticle is developed by Reticle Labs. It is listed in the AI Testing & Quality Assurance category on ai.dosa.dev.
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