GoKawiilNew open-source tool gives AI coding agents compiler-accurate C# code navigation
Graphify C# is a free, MIT-licensed headless indexer built on Roslyn and MSBuild that extracts semantic relationships from C# codebases, including caller-callee links, interface implementations, inheritance and overrides. Unlike text search, it resolves exact symbol bindings across overloads, generics and multiple projects, producing structured data that coding agents like Codex or Claude Code can query directly instead of guessing from string matches.
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AI coding assistants often struggle with code comprehension tasks that require understanding actual program semantics rather than surface text patterns, leading to hallucinated or imprecise answers about how code is used. By exposing IDE-grade semantic analysis as a standalone, database-free tool, Graphify C# could let autonomous coding agents perform safer refactors and more reliable dependency analysis without requiring a full IDE environment.
- Graphify C# is a free, MIT-licensed Roslyn/MSBuild-based indexer for C# codebases
- It provides compiler-verified call graphs, inheritance and implementation relationships instead of text-based guesses
- It's designed specifically to feed structured semantic evidence to AI coding agents like Codex and Claude Code
C# 12 in a Nutshell by Joseph Albahari — If you're digging into Roslyn-powered tooling and semantic analysis of C# code, Albahari's reference is the classic desk companion for understanding the language features—overloads, generics, interfaces—that make Find Usages hard in the first place. It's a thorough, example-driven guide you'll keep open next to your editor.
See C# 12 in a Nutshell by Joseph Albahari on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: github.com, 2026-09-12
Published there as: “Show HN: Graphify C# – Compiler-accurate Find Usages for coding agents”
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