gitnexus-exploring

gitnexus-exploring is a skill for Claude Code, Codex from metagit-ai/metagit-cli. It costs 55 tokens per session (719 once invoked), scanned A, a copy of gitnexus-exploring, MIT.

A codebase exploration workflow that uses GitNexus, a searchable map of code symbols and execution flows, to explain how an unfamiliar project works.

In plain words
What is it for?
Use it to understand project structure, trace authentication or database logic, find what calls a function, and inspect a symbol’s callers and callees.
Why use it?
It replaces broad, manual searching with focused tracing through related code and the steps a request follows.

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/metagit-ai/metagit-cli/gitnexus-exploring
Any agent
npx skills add metagit-ai/metagit-cli --skill gitnexus-exploring
Clone the repo
git clone --depth 1 https://github.com/metagit-ai/metagit-cli

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-exploring

README.md
[![agentmods](https://agentmods.dev/badge/skills/metagit-ai/metagit-cli/gitnexus-exploring.svg)](https://agentmods.dev/skills/metagit-ai/metagit-cli/gitnexus-exploring)
Your own site
<a href="https://agentmods.dev/skills/metagit-ai/metagit-cli/gitnexus-exploring"><img src="https://agentmods.dev/badge/skills/metagit-ai/metagit-cli/gitnexus-exploring.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 719 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 86% 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 $0.00055 $0.00719
Opus 5 $0.00028 $0.00360
Sonnet 5 $0.00011 $0.00144
Haiku 4.5 $0.00006 $0.00072

Measured 4d ago against content hash 5b362700781e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

gitnexus-exploring 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 4d 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

86% identical to gitnexus-exploring — 25 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.

.agents/skills/gitnexus/gitnexus-exploring/SKILL.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Exploring Codebases with GitNexus

When to Use

  • "How does authentication work?"
  • "What's the project structure?"
  • "Show me the main components"
  • "Where is the database logic?"
  • Understanding code you haven't seen before

Workflow

1. READ gitnexus://repos                          → Discover indexed repos
2. READ gitnexus://repo/{name}/context             → Codebase overview, check staleness
3. gitnexus_query({query: "<what you want to understand>"})  → Find related execution flows
4. gitnexus_context({name: "<symbol>"})            → Deep dive on specific symbol
5. READ gitnexus://repo/{name}/process/{name}      → Trace full execution flow

If step 2 says "Index is stale" → run npx gitnexus analyze in terminal.

Checklist

- [ ] READ gitnexus://repo/{name}/context
- [ ] gitnexus_query for the concept you want to understand
- [ ] Review returned processes (execution flows)
- [ ] gitnexus_context on key symbols for callers/callees
- [ ] READ process resource for full execution traces
- [ ] Read source files for implementation details

Resources

Resource What you get
gitnexus://repo/{name}/context Stats, staleness warning (~150 tokens)
gitnexus://repo/{name}/clusters All functional areas with cohesion scores (~300 tokens)
gitnexus://repo/{name}/cluster/{name} Area members with file paths (~500 tokens)
gitnexus://repo/{name}/process/{name} Step-by-step execution trace (~200 tokens)

Tools

gitnexus_query — find execution flows related to a concept:

gitnexus_query({query: "payment processing"})
→ Processes: CheckoutFlow, RefundFlow, WebhookHandler
→ Symbols grouped by flow with file locations

gitnexus_context — 360-degree view of a symbol:

gitnexus_context({name: "validateUser"})
→ Incoming calls: loginHandler, apiMiddleware
→ Outgoing calls: checkToken, getUserById
→ Processes: LoginFlow (step 2/5), TokenRefresh (step 1/3)

Read the full file on GitHub · 80 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. 4d ago First seen · 80 lines · 55 tokens per session scan A 5b362700781e

Subscribe to this mod's changes

gitnexus-exploring is a skill published in the GitHub repository metagit-ai/metagit-cli (2 stars, last pushed 6d ago), licensed MIT. It adds 55 tokens to every session and 719 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to gitnexus-exploring, differing in 25 lines, and is treated as a copy.

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