infer-ontology

infer-ontology is a skill for Claude Code from dathere/qsv. It costs 37 tokens per session (2,499 once invoked), scanned A, original, no licence file.

A description of the things represented in a folder's files, their properties, how they relate, the subject areas they cover, and how records can be joined. It saves this map as ONTOLOGY.md.

In plain words
What is it for?
Use it to document entities, attributes, relationships, categories, and possible joins across all files in a working directory.
Why use it?
It helps you understand an unfamiliar collection of files and find links between related records.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the qsv-data-wrangling plugin — 20 skills, 3 agents, 4 hooks shipped together

Good fit Use it to document entities, attributes, relationships, categories, and possible joins across all files in a working directory.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dathere/qsv/infer-ontology
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.

Any agent
npx skills add dathere/qsv --skill infer-ontology
Clone the repo
git clone --depth 1 https://github.com/dathere/qsv

Made for: Claude Code.

Or install qsv-data-wrangling, the plugin that ships this one along with the rest of its 20 skills, 3 agents, 4 hooks.

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 infer-ontology

README.md
[![agentmods](https://agentmods.dev/badge/skills/dathere/qsv/infer-ontology.svg)](https://agentmods.dev/skills/dathere/qsv/infer-ontology)
Your own site
<a href="https://agentmods.dev/skills/dathere/qsv/infer-ontology"><img src="https://agentmods.dev/badge/skills/dathere/qsv/infer-ontology.svg" alt="Measured on agentmods" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,499 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Data Exfiltration · line 48
    Code or instructions that leak agent conversation context to external services, potentially exposing sensitive user interactions.
    Fix: Remove any code that sends prompts, responses, or session data externally. Preserve user privacy; never exfiltrate conversation content.
How audits are shown
Origin unknown 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 5.1 $0.00037 $0.02499
Opus 5 $0.00018 $0.01249
Sonnet 5 $0.00007 $0.00500
Haiku 4.5 $0.00004 $0.00250

Measured 9d ago against content hash 30a5ab20a83f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

infer-ontology 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 9d 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.

.claude/skills/skills/infer-ontology/SKILL.md · 200 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 9d ago First seen · 200 lines · 37 tokens per session scan A 30a5ab20a83f

Subscribe to this mod's changes

infer-ontology is a skill published in the GitHub repository dathere/qsv (3,776 stars, last pushed today), with no licence file. It adds 37 tokens to every session and 2,499 once invoked, about $0.0002 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 2026-08-30.

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