dependency-migration-mcp

Through-the-upgrade migration briefs for LLM coding agents.

Official codemods auto-apply the mechanical ~90% of a major version bump. This MCP server briefs your agent on the non-mechanical ~10% that still leaves the build red, and corrects the agent's stale-v3-training hallucination of the old API surface — the part a codemod cannot do.

For one triple it returns a structured brief: per breaking change — category, before/after, how to grep every occurrence in code, the fix, and whether the free codemod already covers it — plus a top-level list of the specific old-API hallucinations the agent must suppress.