chatgpt-mcp: Skill for Claude Code

.claude/skills/gitnexus/gitnexus-cli/SKILL.md

gitnexus-cli is a skill for Claude Code from trankhanh040147/chatgpt-mcp. It costs 59 tokens per session (1,128 once invoked), scanned A, a copy of gitnexus-cli, MIT.

A guide to the GitNexus command-line tool, which indexes a codebase so its symbols and relationships can be searched. It covers creating, refreshing, checking, cleaning, and documenting that index.

In plain words
What is it for?
Use it to index a repository, refresh its analysis, check index status, remove the index, or generate a project wiki.
Why use it?
It explains how to prepare and maintain the code map needed for GitNexus code searches and impact checks.

Skill for Claude Code

Written for Claude Code: PostToolUse hook event. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is trankhanh040147/chatgpt-mcp's own configuration. It tells Claude Code how to work on chatgpt-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything chatgpt-mcp configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node .gitnexus/run.cjs analyze.

Reuse

Borrowing it

Nothing to install: this file belongs to trankhanh040147/chatgpt-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/trankhanh040147/chatgpt-mcp/main/.claude/skills/gitnexus/gitnexus-cli/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/trankhanh040147/chatgpt-mcp

Made for: Claude Code.

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-cli

README.md
[![agentmods](https://agentmods.dev/badge/skills/trankhanh040147/chatgpt-mcp/gitnexus-cli.svg)](https://agentmods.dev/skills/trankhanh040147/chatgpt-mcp/gitnexus-cli)
Your own site
<a href="https://agentmods.dev/skills/trankhanh040147/chatgpt-mcp/gitnexus-cli"><img src="https://agentmods.dev/badge/skills/trankhanh040147/chatgpt-mcp/gitnexus-cli.svg" alt="Measured on agentmods" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,128 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00059 $0.01128
Opus 5 $0.00030 $0.00564
Sonnet 5 $0.00012 $0.00226
Haiku 4.5 $0.00006 $0.00113

Measured 6d ago against content hash 58f9f765306b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

gitnexus-cli 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 6d 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-cli — 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-cli/SKILL.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GitNexus CLI Commands

Commands below use node .gitnexus/run.cjs <command> — the project-local runner gitnexus analyze drops next to the index. It auto-selects an available runner at call time (global gitnexus, else pnpm dlx, else npx), so no package-manager assumption and no global install is required.

Not analyzed yet, or node .gitnexus/run.cjs reports Cannot find module (the gitignored runner is absent — e.g. a fresh clone or git clean)? (Re)generate it with npx gitnexus analyze from the project root. On npm 11.x, if npx crashes during install (node.target is null), install once with npm i -g gitnexus (then gitnexus analyze) or use pnpm --allow-build=@ladybugdb/core --allow-build=gitnexus --allow-build=tree-sitter dlx gitnexus@latest analyze. See #1939.

Commands

analyze — Build or refresh the index

node .gitnexus/run.cjs analyze

Run from the project root. This parses all source files, builds the knowledge graph, writes it to .gitnexus/, and generates CLAUDE.md / AGENTS.md context files.

Flag Effect
--force Force full re-index even if up to date
--embeddings Enable embedding generation for semantic search (off by default)
--drop-embeddings Drop existing embeddings on rebuild. By default, an analyze without --embeddings preserves them.
--pdg Build the program-dependence layers used by explain and pdg_query (taint, CDG, and REACHING_DEF).

When to run: First time in a project, after major code changes, or when gitnexus://repo/{name}/context reports the index is stale. In Claude Code, a PostToolUse hook detects staleness after git commit and git merge and notifies the agent to run analyze — the hook does not run analyze itself, to avoid blocking the agent for up to 120s and risking KuzuDB corruption on timeout.

Read the full file on GitHub · 87 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. 6d ago First seen · 87 lines · 59 tokens per session scan A 58f9f765306b

Subscribe to this mod's changes

gitnexus-cli is a skill published in the GitHub repository trankhanh040147/chatgpt-mcp (0 stars, last pushed 2d ago), licensed MIT. It adds 59 tokens to every session and 1,128 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-cli, differing in 0 lines, and is treated as a copy.

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