Claude-skill-registry gkg

Semantic code analysis with GitLab Knowledge Graph. Use for go-to-definition, find-usages, impact analysis, architecture visualization. Supports Ruby, Java, Kotlin, Python, TypeScript/JavaScript.

install

source · Clone the upstream repo

git clone https://github.com/majiayu000/claude-skill-registry

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/data/gkg" ~/.claude/skills/majiayu000-claude-skill-registry-gkg-58253b && rm -rf "$T"

manifest: skills/data/gkg/SKILL.md

source content

GitLab Knowledge Graph (GKG)

Semantic code analysis engine using AST parsing and KuzuDB graph database. Enables IDE-like code navigation for AI assistants.

Status: Public beta | Requires: Git repository | Storage:

~/.gkg/

When to Use

Find all usages of a function/class across codebase
Go-to-definition for symbols
Impact analysis before refactoring
Generate architecture diagrams
RAG-enhanced code understanding

Use repomix instead for: quick context dumps, any-language support, remote repos, token counting.

Quick Start

# Check installation
gkg --version

# Index current repo
gkg index

# Start server (for API/MCP)
gkg server start

# Stop before re-indexing
gkg server stop

Installation

# macOS/Linux
curl -fsSL https://gitlab.com/gitlab-org/rust/knowledge-graph/-/raw/main/install.sh | bash

# Windows (PowerShell)
irm https://gitlab.com/gitlab-org/rust/knowledge-graph/-/raw/main/install.ps1 | iex

Core Workflows

Index and Query

gkg index /path/to/project --stats
gkg server start
# Query via HTTP API at http://localhost:27495

Find Symbol Usages

Index project:
```
gkg index
```
Start server:
```
gkg server start
```
Use MCP tool
```
get_references
```
or HTTP API
```
/api/graph/search
```

Impact Analysis

Index affected repos
Query
```
get_references
```
for changed symbols
Review all call sites before refactoring

Language Support

Language	Cross-file Refs
Ruby	✅ Full
Java	✅ Full
Kotlin	✅ Full
Python	🚧 In progress
TypeScript	🚧 In progress
JavaScript	🚧 In progress

References

CLI Commands -
```
gkg index
```
,
```
gkg server
```
,
```
gkg remove
```
,
```
gkg clean
```
MCP Tools - 7 tools for AI integration
HTTP API - REST endpoints for querying
Language Details - Supported features per language

Key Constraints

Must stop server before re-indexing
Requires initialized Git repository
Languages not connected across repos (yet)
TS/JS/Python cross-file refs incomplete