Show HN: Capn-hook for coding agents – don't grep the same mystery twice
Summary
Capn-hook is a GitHub project that provides persistent memory for coding agents. It caches answers and the exact backing files to avoid repeating costly codebase explorations, reducing token usage and speeding up subsequent sessions. The tool uses a chart/unchart workflow, stores memory locally, and ships as a CLI that integrates with Claude Code and Codex workflows.