using-the-graph

A guide for using a skill graph: a map of installed skills, their relationships, and the projects that use them. It answers questions about what a skill does, what to install, and how skills are connected.

In plain words
What is it for?
Use it to search for skills, inspect a skill's purpose, find related skills, see which projects use one, or review a project's installed skills.
Why use it?
It prevents choosing skills based only on filenames or assumptions. The graph can show which capabilities match a task and whether a project already uses them.

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/quantumwars/project-graphx/using-the-graph
Any agent
npx skills add QuantumWars/project-graphx --skill using-the-graph
Clone the repo
git clone --depth 1 https://github.com/QuantumWars/project-graphx

Made for: Claude Code, Codex.

Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 899 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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 $0.00062 $0.00899
Opus 5 $0.00031 $0.00449
Sonnet 5 $0.00012 $0.00180
Haiku 4.5 $0.00006 $0.00090

Measured yesterday against content hash 3cdac2add9fa, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

using-the-graph 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 yesterday.

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.

skills/using-the-graph/SKILL.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Using the skill graph

The skill-graph MCP server answers questions about the agents and skills catalogued for this project from data built by scanning real files. Prefer it to reading directories: a .claude/skills listing gives you names, and the graph gives you what each one is, what references it, and who already uses it.

First, is there a graph?

Every tool fails with the same message when the project has no graph yet: No graph found at <path>. That is a first-run state, not a fault. Tell the user to run /skill-graph:setup and then /skill-graph:build. Do not fall back to guessing from filenames without saying that is what you are doing.

Which tool answers which question

The question The tool
"what should I install for X" search_ranked, then get_file_set to narrow
"what is this skill" get_node
"what is important here" best_skills
"what else relates to this" graph_neighbors, related_by_connections
"how are these two connected" graph_path
"who already uses this" projects_using
"what does this project have" project_installed_skills
"what categories/tags exist" list_categories, list_tags

find_skills is a fuzzy name/description match; search_ranked also weighs how connected and how used each hit is. Reach for search_ranked when the user described a need, and find_skills when they named a thing.

What the numbers mean, and do not mean

An edge exists because one file's text mentions another node's name — a real, counted occurrence, not a curated relationship. High degree means "widely mentioned", which is usually but not always "important": a skill named after a common word accumulates edges by coincidence. Say "referenced by N others" rather than "the most important", because the first is what was measured.

usedBy and usesCount come from a filesystem scan of the configured scan roots. Absent means "not found under those roots" — never "unused". If scanRoots is empty, every one of these numbers is zero and reporting them as usage would be wrong.

Read the full file on GitHub · 71 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. yesterday First seen · 71 lines · 62 tokens per session scan A 3cdac2add9fa

Subscribe to this mod's changes

using-the-graph is a skill published in the GitHub repository QuantumWars/project-graphx (1 stars, last pushed 13d ago), licensed MIT. It adds 62 tokens to every session and 899 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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