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Dynamic memory for coding agents: chart discoveries as you explore, cache-bust when files change

17 starsTypeScript

Capn-hook for coding agents – don't grep the same mystery twice

by knrz·Jul 12, 2026·4 points·0 comments

AI Analysis

●●●BangerSolve My ProblemBig Brain

Auto-invalidating cache saves 77% tokens on repeat codebase questions.

Strengths
  • SHA256 fingerprinting ensures cached answers die immediately when files change.
  • 77% token reduction on repeat questions proves immediate ROI for heavy users.
  • Non-invasive hook integration works with existing agents without wrappers.
Weaknesses
  • Relies on agent obeying the 'ask before searching' instruction consistently.
  • Initial setup requires manual hook installation for each supported agent.
Target Audience

Developers using Claude Code or Codex for large codebases

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