Codebase Memory MCP
The most active server in this batch and one of the highest-momentum projects in the entire directory. 100 commits in the last 30 days, 31 releases shipped in 9 weeks since first commit, and a peer-style arXiv preprint backing the architecture. Indexes the Linux kernel (28M LOC, 75K files) in 3 minutes, answers structural queries in under 1ms, and ships as a single static C binary with zero dependencies. SLSA Level 3 attestation bundles ship with every release. Designed for AI coding agents that need persistent code intelligence across sessions: tree-sitter AST parsing across 66 languages plus LSP-style hybrid type resolution for Go, C, and C++. The arXiv preprint (2603.27277) reports the trade-off: 83% answer quality versus 92% for a file-exploration agent, achieved at 10x fewer tokens across 31 real-world repositories. The pitch is the cost-quality curve, slightly lower raw quality at dramatically lower token cost, which matters when agents work in large repositories session after session.