Long Horizon

longhorizon.dev

Your coding agent writes the feature — let it test it too.

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Long Horizon screenshot
/ About /

Long Horizon is an agentic frontend testing platform that integrates with AI coding agents to automatically plan, author, and execute browser-based tests. It provides complete execution logs, screenshots, and network details in shareable reports to support confident code review and feature delivery. The tool supports debugging workflows and PR review processes by giving developers evidence-backed test results.

/ How it works /

Long Horizon connects to MCP-compatible coding agents to automatically generate test plans, write and run tests in a real browser, and produce shareable execution reports with logs and screenshots.

/ Who it's for /

software developers and engineering teams using AI coding agents

/ More info /

Background.

Status
launched
Business model
unknown
/ Discovered patterns /

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