A developer amplified Microsoft’s open-source tgrep (github.com/microsoft/tgrep): trigram-indexed regex search for large codebases with a client/server design and file watcher for millisecond lookups; the post says Copilot CLI already uses it internally to cut agent repo-scan cost.

Key Takeaways

  • ✓Microsoft open-sourced tgrep for fast trigram-indexed repo search.
  • ✓Client/server plus file watcher; github.com/microsoft/tgrep.
  • ✓Post says Copilot CLI already uses it to speed agent file finding.
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