gitnexus-guide

gitnexus-guide is a skill for Claude Code, Codex from docxology/codomyrmex. It costs 56 tokens per session (2,518 once invoked), scanned A, a copy of gitnexus-guide, MIT.

A guide to GitNexus, a codebase knowledge graph that maps symbols, references, and execution flows. It explains its tools, resources, data model, and command-line interface.

In plain words
What is it for?
Use it when learning GitNexus, querying a code graph, checking available tools, or choosing a workflow for code exploration, debugging, impact analysis, or refactoring.
Why use it?
It provides one reference for finding the right GitNexus query and checking whether its code index is current.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/docxology/codomyrmex/gitnexus-guide
Any agent
npx skills add docxology/codomyrmex --skill gitnexus-guide
Clone the repo
git clone --depth 1 https://github.com/docxology/codomyrmex

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for gitnexus-guide

README.md
[![agentmods](https://agentmods.dev/badge/skills/docxology/codomyrmex/gitnexus-guide.svg)](https://agentmods.dev/skills/docxology/codomyrmex/gitnexus-guide)
Your own site
<a href="https://agentmods.dev/skills/docxology/codomyrmex/gitnexus-guide"><img src="https://agentmods.dev/badge/skills/docxology/codomyrmex/gitnexus-guide.svg" alt="Measured on agentmods" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,518 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00056 $0.02518
Opus 5 $0.00028 $0.01259
Sonnet 5 $0.00011 $0.00504
Haiku 4.5 $0.00006 $0.00252

Measured 3d ago against content hash 746d057790de, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

gitnexus-guide scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to gitnexus-guide — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/gitnexus/gitnexus-guide/SKILL.md · 139 lines

How it starts

The opening of the file, as written. The whole thing — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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:

  1. Read gitnexus://repo/{name}/context — codebase overview + check index freshness
  2. Match your task to a skill below and read that skill file
  3. Follow the skill's workflow and checklist

If step 1 warns the index is stale, run node .gitnexus/run.cjs 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
trace Shortest path between two symbols — "how does A reach B?" in one call
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)
explain Persisted taint findings — source→sink data flows (needs analyze --pdg)
pdg_query Control/data dependence — what gates X (CDG) / where Y flows (REACHING_DEF); needs analyze --pdg
check Check graph invariants such as circular imports
route_map API route map — which components/hooks fetch which endpoints, and the handler files that serve them
shape_check Response-shape drift — keys each route returns vs keys its consumers access (flags MISMATCH)
api_impact Pre-change report for an API route — consumers, middleware, shape mismatches, risk level
tool_map MCP/RPC tool definitions and the files that handle them
group_list List configured multi-repo groups, or one group's config
group_sync Rebuild a group's Contract Registry (cross-repo HTTP contract links); run after group.yaml changes or member re-index
list_repos Discover indexed repos (paginated — limit/offset)

Read the full file on GitHub · 139 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 139 lines · 56 tokens per session scan A 746d057790de

Subscribe to this mod's changes

gitnexus-guide is a skill published in the GitHub repository docxology/codomyrmex (11 stars, last pushed 3d ago), licensed MIT. It adds 56 tokens to every session and 2,518 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to gitnexus-guide, differing in 0 lines, and is treated as a copy.

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