@AverageAiBro highlighted retrieval-mcp (github.com/abendrothj/retrieval-mcp) v0.1.6, a Rust stdio MCP for coding agents whose measured four-tool default (search_exact, read_source, find_callers, search_concept) cuts schema tax; README claims ~24–42% fewer input tokens vs specialist search MCP with matched answer quality. Install via cargo or the release binary, then register with Claude Code/Codex.

Key Takeaways

  • ✓Default four tools: search_exact, read_source, find_callers, search_concept.
  • ✓README: ~24–42% fewer input tokens vs specialist search MCP, matched quality.
  • ✓Rust stdio MCP; cargo install or v0.1.6 binary for Claude Code/Codex.
ADSponsored