Sverklo

About Sverklo

Sverklo is an MIT-licensed repo-memory layer that gives Claude Code, Cursor, Windsurf and Codex-style agents your repository's files, symbols, callers, tests, dependencies, diffs and git-pinned decisions before they start editing. The framing is unusually evidence-first for this category: rather than asking you to install it and trust the result, the entry point is a proof command you run from a real repository with `--no-write`, which writes no project files and no MCP config, produces a markdown receipt showing which symbols were selected and why, and can be pasted into GitHub, Discord or Reddit for scrutiny. Behind that sits a public 180-task hand-verified retrieval benchmark across six open-source codebases, measured against five baselines including plain grep — and the site publishes its losses as well as its wins, stating plainly that grep still beats it on exact strings. The worked example is impact analysis: asking what would break if a function signature changed returns the direct callers and the covering test with file and line references in about 23 milliseconds, which is the kind of answer an agent otherwise fakes. It runs locally by default with telemetry off by default; the one boundary it documents explicitly is that an explicitly configured remote embedding provider may receive code chunks. Installation is via npm, either globally or as an MCP server entry in .cursor/mcp.json, and the local ONNX model and index cache under ~/.sverklo.

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