ontology-wiki

ontology-wiki is a skill for Claude Code from aws-samples/sample-oh-my-aidlcops. It costs 122 tokens per session (1,257 once invoked), scanned A, original, MIT-0.

A pre-generation knowledge lookup layer for project records such as specifications, architecture decisions, deployments, agents, skills, incidents, budgets, and risks. It checks an existing knowledge graph for definitions, allowed values, past examples, and the reasons behind earlier decisions before writing new records.

In plain words
What is it for?
Use it before generating project records to look up established definitions, allowed values, precedents, and decision history, using Graphify when available.
Why use it?
It helps prevent new documentation from drifting away from the project's existing terminology and decisions. If the graph is unavailable, it can fall back to reading the raw schemas and documentation.

Skill for Claude Code ✓ vendor

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

Part of the aidlc plugin — 11 skills shipped together

Good fit Use it before generating project records to look up established definitions, allowed values, precedents, and decision history, using Graphify when available.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aws-samples/sample-oh-my-aidlcops/ontology-wiki
About the project

sample-oh-my-aidlcops is a plugin marketplace for Claude Code and Kiro that packages practices for managing the AWS AI-Driven Development Lifecycle, including design correctness and agent safety. It is for teams using agents to develop and operate AWS systems with approval checkpoints. Its catalogue contains the marketplace's plugins, skills, agents, and commands.

aws-samples/sample-oh-my-aidlcops · 19 stars · on GitHub · aws-samples.github.io

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 aws-samples/sample-oh-my-aidlcops --skill ontology-wiki
Clone the repo
git clone --depth 1 https://github.com/aws-samples/sample-oh-my-aidlcops

Made for: Claude Code.

Or install aidlc, the plugin that ships this one along with the rest of its 11 skills.

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-wiki

README.md
[![agentmods](https://agentmods.dev/badge/skills/aws-samples/sample-oh-my-aidlcops/ontology-wiki/github.svg)](https://agentmods.dev/skills/aws-samples/sample-oh-my-aidlcops/ontology-wiki)
Your own site
<a href="https://agentmods.dev/skills/aws-samples/sample-oh-my-aidlcops/ontology-wiki"><img src="https://agentmods.dev/badge/skills/aws-samples/sample-oh-my-aidlcops/ontology-wiki/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ontology-wiki

Your own site · 80×15
<a href="https://agentmods.dev/skills/aws-samples/sample-oh-my-aidlcops/ontology-wiki"><img src="https://agentmods.dev/badge/skills/aws-samples/sample-oh-my-aidlcops/ontology-wiki.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 122 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,257 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 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 $0.00122 $0.01257
Opus 5 $0.00061 $0.00629
Sonnet 5 $0.00024 $0.00251
Haiku 4.5 $0.00012 $0.00126

Measured 10d ago against content hash 381608575d23, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

ontology-wiki 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 10d 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/aidlc/skills/ontology-wiki/SKILL.md · 75 lines

The source is not reproduced here

Licensed MIT-0

The repository is licensed MIT-0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

13 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 10d ago First seen · 75 lines · 122 tokens per session scan A 381608575d23

Subscribe to this mod's changes

ontology-wiki is a skill published in the GitHub repository aws-samples/sample-oh-my-aidlcops (19 stars, last pushed today), licensed MIT-0. It adds 122 tokens to every session and 1,257 once invoked, about $0.0006 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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