skill-creator

skill-creator is a skill for Claude Code, Codex from HughYau/AcademicForge. It costs 64 tokens per session (8,455 once invoked), scanned A, original, no licence file.

A guide for creating, editing, improving, and testing skills for coding agents. It covers evaluations, performance benchmarks, variance analysis, and improving when a skill is selected.

In plain words
What is it for?
Use it to build skills, revise their instructions, run tests, measure performance, and improve trigger descriptions.
Why use it?
It gives a structured way to check whether a skill works well and whether agents choose it for the right requests.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

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/hughyau/academicforge/skill-creator
Any agent
npx skills add HughYau/AcademicForge --skill skill-creator
Clone the repo
git clone --depth 1 https://github.com/HughYau/AcademicForge

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 skill-creator

README.md
[![agentmods](https://agentmods.dev/badge/skills/hughyau/academicforge/skill-creator.svg)](https://agentmods.dev/skills/hughyau/academicforge/skill-creator)
Your own site
<a href="https://agentmods.dev/skills/hughyau/academicforge/skill-creator"><img src="https://agentmods.dev/badge/skills/hughyau/academicforge/skill-creator.svg" alt="Measured on agentmods" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,455 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00064 $0.08455
Opus 5 $0.00032 $0.04228
Sonnet 5 $0.00013 $0.01691
Haiku 4.5 $0.00006 $0.00846

Measured 6d ago against content hash 4c787b5ea42a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

skill-creator 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 6d ago.

The scan reads SKILL.md. This mod also ships 10 executable files (eval-viewer/generate_review.py, scripts/__init__.py, scripts/aggregate_benchmark.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/claude-science/skill-creator/SKILL.md · 614 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. 6d ago First seen · 614 lines · 64 tokens per session scan A 4c787b5ea42a

Subscribe to this mod's changes

skill-creator is a skill published in the GitHub repository HughYau/AcademicForge (2,517 stars, last pushed 6d ago), with no licence file. It adds 64 tokens to every session and 8,455 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 2026-08-30.

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