Capn-hook for coding agents – don't grep the same mystery twice
Navigational memory for coding agents: chart discoveries as you explore, cache-bust when files change - CyrusNuevoDia/capn-hook
Capn-hook for coding agents – don't grep the same mystery twice launched on July 12, 2026 with 29 votes, #730 of 24,623 launches that month and more than 95% of that year's launches.
In plain words
Capn-hook is a development tool that helps coding agents avoid repeating work by preventing duplicate grep operations. Designed for developers working with AI-assisted coding tools, it tracks search patterns to eliminate redundant queries across projects. The tool integrates with standard development workflows through GitHub, making it useful for teams that rely on automated code analysis and want to improve efficiency by reducing unnecessary searches.
written from the facts on this page · September 2026
From the sources
Persistent memory for coding agents. When your agent spends ten minutes figuring out where something lives in your codebase, capn saves the files that answer the question. The next session gets them back in one command instead of re-exploring — and the moment the underlying files change, the saved answer deletes itself. Across 60 real developer questions on 5 production codebases (Dub, Polar, PostHog, Twenty, Documenso), an agent recalling from capn used 77% fewer tokens than an agent exploring cold — every answer correct in both arms, the right chart recalled on all 60 questions, and a charting session paying for itself in ~1.6 recalls. Coding agents forget everything between sessions. The…from github.com
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