Data & analysis

graph-build

Try it

Builds or updates the code knowledge graph via tree-sitter AST and SQLite

What it does

Builds or updates the code knowledge graph via tree-sitter AST and SQLite

The skill document

Night Market Skill — ported from claude-night-market/gauntlet. For the full experience with agents, hooks, and commands, install the Claude Code plugin.

Build Code Knowledge Graph

Build or update the .gauntlet/graph.db knowledge graph for the current codebase.

Steps

  1. Detect target: Use the current working directory or a user-specified path.

  2. Check for existing graph: If .gauntlet/graph.db exists, run an incremental update. Otherwise, run a full build.

  3. Run the build script:

    For full build:

    python3 ${CLAUDE_PLUGIN_ROOT}/scripts/graph_build.py 
    

    For incremental update:

    python3 ${CLAUDE_PLUGIN_ROOT}/scripts/graph_build.py  --incremental
    
  4. Report results: Show the JSON output including files parsed, nodes created, edges created, and duration.

  5. Suggest next steps: Recommend searching the graph or running blast radius analysis.

When To Use

  • At the start of a session to build structural awareness
  • After significant code changes to update the graph
  • Before running blast radius analysis or flow tracing
  • When the user asks about codebase structure

What Gets Parsed

The graph extracts nodes (File, Class, Function, Type, Test) and edges (CALLS, IMPORTS_FROM, INHERITS, CONTAINS, IMPLEMENTS, TESTED_BY) from 20+ languages including Python, JavaScript, TypeScript, Go, Rust, Java, C/C++, Ruby, and PHP.

Storage

  • Database: .gauntlet/graph.db (SQLite with WAL mode)
  • Auto-creates .gauntlet/.gitignore to prevent commits
  • Incremental updates use SHA-256 hashing to skip unchanged files

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