GitNexus Guide
Quick reference for all GitNexus MCP tools, resources, and the knowledge graph schema.
Always Start Here
For any task involving code understanding, debugging, impact analysis, or refactoring:
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Read gitnexus://repo/{name}/context — codebase overview + check index freshness
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Match your task to a skill below and read that skill file
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Follow the skill's workflow and checklist
If step 1 warns the index is stale, run npx gitnexus analyze in the terminal first.
Skills
Task Skill to read
Understand architecture / "How does X work?" gitnexus-exploring
Blast radius / "What breaks if I change X?" gitnexus-impact-analysis
Trace bugs / "Why is X failing?" gitnexus-debugging
Rename / extract / split / refactor gitnexus-refactoring
Tools, resources, schema reference gitnexus-guide (this file)
Index, status, clean, wiki CLI commands gitnexus-cli
Tools Reference
Tool What it gives you
query
Process-grouped code intelligence — execution flows related to a concept
context
360-degree symbol view — categorized refs, processes it participates in
impact
Symbol blast radius — what breaks at depth 1/2/3 with confidence
detect_changes
Git-diff impact — what do your current changes affect
rename
Multi-file coordinated rename with confidence-tagged edits
cypher
Raw graph queries (read gitnexus://repo/{name}/schema first)
list_repos
Discover indexed repos
Resources Reference
Lightweight reads (~100-500 tokens) for navigation:
Resource Content
gitnexus://repo/{name}/context
Stats, staleness check
gitnexus://repo/{name}/clusters
All functional areas with cohesion scores
gitnexus://repo/{name}/cluster/{clusterName}
Area members
gitnexus://repo/{name}/processes
All execution flows
gitnexus://repo/{name}/process/{processName}
Step-by-step trace
gitnexus://repo/{name}/schema
Graph schema for Cypher
Graph Schema
Nodes: File, Function, Class, Interface, Method, Community, Process Edges (via CodeRelation.type): CALLS, IMPORTS, EXTENDS, IMPLEMENTS, DEFINES, MEMBER_OF, STEP_IN_PROCESS
MATCH (caller)-[:CodeRelation {type: 'CALLS'}]->(f:Function {name: "myFunc"}) RETURN caller.name, caller.filePath