glossary

glossary is a skill for Claude Code, Codex from HelloThisWorld/agent-skill-verification-template. It costs 51 tokens per session (820 once invoked), scanned A, original, MIT.

A Wikipedia lookup tool that defines English terms and returns a web page with citations to the exact lines used.

In plain words
What is it for?
Looking up unfamiliar people, places, concepts, or other terms from an offline English Wikipedia snapshot.
Why use it?
It provides checkable definitions and reports when the available source does not contain enough evidence instead of guessing.

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/hellothisworld/agent-skill-verification-template/glossary
Any agent
npx skills add HelloThisWorld/agent-skill-verification-template --skill glossary
Clone the repo
git clone --depth 1 https://github.com/HelloThisWorld/agent-skill-verification-template

Made for: Claude Code, Codex.

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 glossary

README.md
[![agentmods](https://agentmods.dev/badge/skills/hellothisworld/agent-skill-verification-template/glossary.svg)](https://agentmods.dev/skills/hellothisworld/agent-skill-verification-template/glossary)
Your own site
<a href="https://agentmods.dev/skills/hellothisworld/agent-skill-verification-template/glossary"><img src="https://agentmods.dev/badge/skills/hellothisworld/agent-skill-verification-template/glossary.svg" alt="Measured on agentmods" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 820 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 $0.00051 $0.00820
Opus 5 $0.00026 $0.00410
Sonnet 5 $0.00010 $0.00164
Haiku 4.5 $0.00005 $0.00082

Measured 3d ago against content hash dbfeed6152cd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

glossary 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.

skills/glossary/SKILL.md · 76 lines

How it starts

The opening of the file, as written. The whole thing — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Glossary (Wikipedia)

A Claude-style skill that answers glossary <term> requests by looking the term up on English Wikipedia and returning a definition rendered as a web page, where every factual claim is backed by a file:line citation into the fetched article. It is built to be verified like a production component — see skill-contract.json for the machine-readable contract and verification-rules.md for how outputs are graded.

When to use

Use this skill for requests such as glossary Mexico or glossary Switzerland. The term after glossary is looked up; the skill produces a concise, source-grounded definition and a self-contained HTML page for it.

Tools

Tool Purpose
wikipedia_search Search the offline Wikipedia snapshot cache. Returns {title, file, line, text} matches, best article first.
wikipedia_fetch Read a snapshot and return its structured article data plus the citable "lede" line.

Contract rule: wikipedia_search must be used before wikipedia_fetch.

Offline-first design

Like the rest of this template, the default eval runs fully offline and deterministically. npm run glossary:build-cache fetches each term once from English Wikipedia (MediaWiki action API) and writes a citable snapshot to fixtures/wikipedia/<term>.html. Each snapshot embeds a machine-readable glossary-data JSON block and a lede line that contains the exact query term verbatim, so citations stay valid even when Wikipedia's canonical title or opening phrasing differs from the query. After the cache exists, no network is required to run or verify the skill.

Procedure

  1. Parse the term from the glossary <term> request.
  2. Use wikipedia_search to locate the best-matching snapshot.
  3. Use wikipedia_fetch to read the snapshot and confirm the citable line.
  4. Produce a structured answer whose claim cites that file:line.
  5. If no snapshot matches the term, return insufficient_evidence with an empty claims array. Never invent a definition or a citation.

Read the full file on GitHub · 76 lines

Files

What ships with it

3 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. 3d ago First seen · 76 lines · 51 tokens per session scan A dbfeed6152cd

Subscribe to this mod's changes

glossary is a skill published in the GitHub repository HelloThisWorld/agent-skill-verification-template (1 stars, last pushed 11d ago), licensed MIT. It adds 51 tokens to every session and 820 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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