Show HN: Graphify C# – Compiler-accurate Find Usages for coding agents

Give coding agents compiler-accurate Find Usages for C#.

graphify-csharp is a free, headless Roslyn/MSBuild indexer that turns C# source into deterministic, queryable semantic evidence: compiler-resolved callers, references, implementations, inheritance, and overrides—even across overloads, generics, and projects.

Think of it as the semantic-navigation slice of Rider/ReSharper, exported for Codex, Claude Code, and other coding agents.

MIT licensed · No IDE · No compiled project DLL required · No database · Graphify optional

A text search can find matching spellings. It cannot reliably tell which overload was bound, which project the caller belongs to, or whether an interface implementation is the symbol you meant.

Graphify C# loads the project through MSBuild and asks Roslyn what every symbol actually means. It emits stable identities and directed relationships that an agent can inspect instead of infer: