Codegraph

CodeGraph Plugin for Claude Code

Analyze and navigate codebases through a Neo4j-backed knowledge graph.

Supported Languages

Language	Status
Kotlin	✅ Available
Java	✅ Available
TypeScript	✅ Available

Prerequisites

• Docker installed and running
• Claude Code CLI

Installation

1. Add the marketplace (once)

/plugin marketplace add Bikach/claude-plugins

2. Install the plugin

/plugin install codegraph@Bikach

Installation Scopes

Scope	Command	Description
User (default)	/plugin install codegraph@Bikach	Available in all your projects
Project	/plugin install codegraph@Bikach --scope project	Shared with all collaborators
Local	/plugin install codegraph@Bikach --scope local	Only for you in this repo

Commands

/codegraph:setup

Starts Neo4j and prepares the database.

/codegraph:setup

What it does:

1. Checks Docker is running
2. Starts the Neo4j container
3. Waits for Neo4j to be ready
4. Creates indexes and constraints
5. Installs tree-sitter native dependencies (required for parsing)

Result: Neo4j available at http://localhost:7474

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/codegraph:index

Indexes a project into the Neo4j graph.

/codegraph:index                      # Index current project
/codegraph:index /path/to/project     # Index specific project
/codegraph:index --clear              # Clear database before indexing
/codegraph:index --exclude-tests      # Exclude test files

What it does:

1. Scans source files (.kt, .java, .ts, .tsx)
2. Parses with tree-sitter
3. Resolves cross-file symbols
4. Writes the graph to Neo4j

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/codegraph:status

Shows Neo4j status and graph statistics.

/codegraph:status

Shows:

• Neo4j connection status
• Node counts (classes, functions, etc.)
• Relationship counts (CALLS, IMPLEMENTS, etc.)

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After Indexing

Once indexed, the following tools are available:

Tool	Description
search_nodes	Search by name or pattern
get_callers	Who calls this function?
get_callees	What functions are called?
get_neighbors	Get dependencies and dependents of a class
get_implementations	Find interface implementations
get_impact	Analyze modification impact
find_path	Find shortest path between two nodes
get_file_symbols	List all symbols in a file