Show HN: Local-first semantic knowledge graph with magnetic-pull retrieval

Category: devtools

Tags: knowledge-graph, code-navigation, ai-agent, mcp, developer-tools

Score: 7.0/10 (Innovation: 7, Technical: 8, Documentation: 7, Utility: 6)

Rig builds a local-first semantic knowledge graph of a codebase, providing an interactive map and an MCP tool surface for AI coding agents to navigate structurally and semantically instead of grepping blindly. Its magnetic-pull retrieval scoring function blending graph distance, embeddings, and recency is an innovative combo that makes agent context walking explainable and efficient.

Target audience: backend devs, ai engineers, devops

Repository: https://github.com/Astralchemist/rig · TypeScript · Apache-2.0 · 4 stars

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