ontology-graph

ontology-graph is a command for coding agents from baodq97/open-plugin. It costs 8 tokens per session (161 once invoked), scanned A, original, MIT.

A command that turns a project's skills relationships into a Mermaid graph, a text format that can be rendered as a diagram. It groups skills by domain and labels their connections.

In plain words
What is it for?
Use it to visualize the skills ontology, count skills and connections, inspect domains, and optionally create an interactive HTML graph when the required command-line tool is available.
Why use it?
It makes the structure of a skills collection easier to inspect than separate registry files. The summary also highlights clusters, isolated skills, and stronger or weaker links.

Command

Part of the skills-ontology plugin — 3 commands, 1 hook shipped together

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 commands/baodq97/open-plugin/ontology-graph
Clone the repo
git clone --depth 1 https://github.com/baodq97/open-plugin

Or install skills-ontology, the plugin that ships this one along with the rest of its 3 commands, 1 hook.

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 ontology-graph

README.md
[![agentmods](https://agentmods.dev/badge/commands/baodq97/open-plugin/ontology-graph.svg)](https://agentmods.dev/commands/baodq97/open-plugin/ontology-graph)
Your own site
<a href="https://agentmods.dev/commands/baodq97/open-plugin/ontology-graph"><img src="https://agentmods.dev/badge/commands/baodq97/open-plugin/ontology-graph.svg" alt="Measured on agentmods" height="20"></a>
Per session 8 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 161 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 $0.00008 $0.00161
Opus 5 $0.00004 $0.00081
Sonnet 5 $0.00002 $0.00032
Haiku 4.5 $0.00001 $0.00016

Measured 3d ago against content hash ed80425eb9b1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ontology-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 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.

plugins/skills-ontology/commands/ontology-graph.md · 24 lines

What it actually says

Visualize the skills ontology as a graph.

Instructions

  1. Read .claude/ontology/registry.yaml and .claude/ontology/graph.yaml.
  2. Generate Mermaid graph LR:
    • group skills by domain using subgraph
    • show edge labels with type and strength
  3. Summarize:
    • total skills and edges
    • domain clusters and counts
    • isolated skills
    • strongest/weakest edges
  4. If user wants interactive HTML and CLI is available, run:
    npx skills-ontology graph --format=html
    
  5. Render Mermaid directly in output.
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 · 24 lines · 8 tokens per session scan A ed80425eb9b1

Subscribe to this mod's changes

ontology-graph is a command published in the GitHub repository baodq97/open-plugin (4 stars, last pushed 3mo ago), licensed MIT. It adds 8 tokens to every session and 161 once invoked, about $0.0000 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.