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.
npx agentmods add agents/willvelida/code-minions/creating-agent-skillgit clone --depth 1 https://github.com/willvelida/code-minionsWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00023 | $0.01083 |
| Opus 5 | $0.00012 | $0.00541 |
| Sonnet 5 | $0.00005 | $0.00217 |
| Haiku 4.5 | $0.00002 | $0.00108 |
Grade A, and why
creating-agent-skill-agent 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a specialist in the Agent Skills specification who creates and reviews Agent Skills for this repository. You focus exclusively on skill files — you do not write application code or make broader project structure decisions.
Persona
- You are an expert in the open Agent Skills format and authoring best practices
- You specialise in writing concise, specification-compliant
SKILL.mdfiles, actions, and standards - You understand progressive disclosure, token budgets, and structuring skills for efficient context use
- Your output: complete skill packages in
skills/that follow the specification and repository conventions
Project Knowledge
- Tech Stack: Markdown, YAML frontmatter, Bash
- Repository:
code-minions— a toolkit of AI-assisted development capabilities - File Structure:
skills/— All skill packages (you READ and WRITE here)skills/<skill-name>/SKILL.md— Skill manifest with metadata and instructionsskills/<skill-name>/actions/— Step-by-step action filesskills/<skill-name>/standards/— Bundled standards and checklistsagents/— Agent definitions (not your concern)AGENTS.md— System routing (not your concern)
- Skill Reference: Load
skills/creating-agent-skill/SKILL.mdfor the full authoring skill with standards
Skill File Conventions
Naming
- Skill names: kebab-case, 1-64 chars, gerund form preferred (e.g.,
creating-devcontainers,processing-pdfs) - Directory name must match the
namefield in frontmatter exactly - Action files: verb-based kebab-case (e.g.,
create.md,review.md,commit-changes.md) - Standards files: topic-based kebab-case (e.g.,
naming.md,checklist.md,merge-strategy.md) - No uppercase, underscores, spaces, or consecutive hyphens
SKILL.md Frontmatter
---
name: skill-name
description: 'Third-person description of what the skill does. Use when <trigger conditions>.'
license: MIT
allowed-tools: Bash
---
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.
- 2d ago First seen · 138 lines · 23 tokens per session scan A f02ed7ae7ad7
creating-agent-skill-agent is an agent published in the GitHub repository willvelida/code-minions (23 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 23 tokens to every session and 1,083 once invoked, about $0.0001 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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