Code Graph Builder
Give Claude Code a persistent, queryable code graph and 30+ MCP tools so agents can explore dependencies and blast radius before refactors.
Overview
Code Graph Builder is a plugin marketplace for the Build phase that exposes 30+ MCP tools over a multi-language SQLite code graph for dependency and impact analysis.
What is this marketplace?
- Builds a SQLite code graph from TypeScript, Python, Rust, Go, and 8+ other languages
- 30+ MCP tools for dependencies, impact analysis, communities, dead code, and doc generation
- Global install via npm and Claude hook-up via cgb install claude
- Persistent graph enables repeat queries without re-scanning on every session
- Tags cover static analysis, architecture, and refactoring workflows
- 30 MCP tools advertised on the marketplace badge
- Supports TypeScript, Python, Rust, Go, and 8 additional languages per catalog description
- Marketplace lists 0 bundled plugins; primary deliverable is the cgb-builder MCP stack
Community signal: 6 GitHub stars.
What problem does it solve?
Jumping into an unfamiliar repo with only file search leaves you guessing which changes will ripple and where dead weight lives.
Who is it for?
Solo builders onboarding to brownfield TypeScript/Python/Rust codebases who already use Claude Code with MCP.
Skip if: Teams that only need a single-language linter with no agent integration or graph persistence.
What do I get? / Deliverables
After npm install and cgb install claude, your agent queries a persistent graph for dependencies, impact, and architecture instead of one-off scans.
- Persistent SQLite code graph for the scanned repository
- MCP tool surface for exploration, impact, and documentation queries
- Claude Code integration after post-install registration
Recommended Marketplaces
Journey fit
Codebase comprehension and change-impact analysis sit in Build when you are wiring agent tooling and navigating unfamiliar repos. agent-tooling is the canonical shelf because the product is an MCP server surface (cgb install claude), not a one-off script.
How it compares
MCP-backed code-graph integration, not a disposable chat prompt or generic IDE plugin.
Common Questions / FAQ
Who is Code Graph Builder for?
Indie developers and small teams using Claude Code who need fast codebase maps, dependency traces, and refactor impact signals across many languages.
When should I use Code Graph Builder?
Use it during Build when exploring a new repo, planning refactors, reviewing architecture, or generating structure-aware docs before large edits.
How do I add Code Graph Builder to my agent?
Run npm install -g cgb-builder, then cgb install claude to register the MCP tools with Claude Code.