skill-creator

A guide for creating or updating reusable instruction packages that give an AI agent specialised knowledge, workflows, or tool connections.

In plain words
What is it for?
It is for designing the package structure, writing its instructions, adding scripts or reference files, and checking that the package is concise and usable.
Why use it?
It helps turn scattered instructions into a clear package the agent can load when relevant, while keeping detailed material separate until needed.

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/luizedupp/rememb/skill-creator
Any agent
npx skills add LuizEduPP/Rememb --skill skill-creator
Clone the repo
git clone --depth 1 https://github.com/LuizEduPP/Rememb

Made for: Claude Code, Codex.

Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 654 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 $0.00035 $0.00654
Opus 5 $0.00017 $0.00327
Sonnet 5 $0.00007 $0.00131
Haiku 4.5 $0.00003 $0.00065

Measured 2d ago against content hash 4d2a84d6ee5f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 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.

src/rememb_skills/skill-creator/SKILL.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Creator

Create modular, self-contained packages that extend AI capabilities with specialized knowledge and workflows across different hosts.

Core Principles

Concise is Key

Challenge each piece: "Does the AI really need this?" Prefer concise examples over verbose explanations.

Progressive Disclosure

  1. Metadata (~100 words) - Always loaded
  2. SKILL.md body (<500 lines) - When triggered
  3. Bundled resources - As needed

Skill Structure

skill-name/
├── SKILL.md (required)
│   ├── YAML frontmatter (name, description)
│   └── Markdown instructions
└── Bundled Resources (optional)
    ├── scripts/      - Executable code
    ├── references/   - Documentation
    └── assets/       - Templates, icons

SKILL.md Format

---
name: my-skill
description: What it does AND when to use it (critical for triggering)
---

# Title

[Core instructions - imperative form]

## Sections as needed

Best Practices

Do Don't
Clear, comprehensive description Vague one-liner
Imperative form ("Create", "Run") Passive voice
Concise examples Verbose explanations
Reference files for details Everything in SKILL.md
Test scripts by running them Assume they work
Use host-agnostic paths and wording Hard-code one assistant's directory layout

Portability Rules

  • Write the skill in English unless a translated artifact is explicitly required
  • Keep the main workflow independent from any single IDE, editor, CLI, or chat app
  • Use placeholders such as <skill-root>, <workspace>, and <output-dir> in examples
  • Put vendor-specific notes in a short compatibility section instead of the core flow
  • Mention a specific assistant only when the skill itself is about that assistant

What NOT to Include

  • README.md, CHANGELOG.md, INSTALLATION.md
  • User-facing documentation
  • Setup/testing procedures

Creation Process

  1. Understand - Get concrete usage examples
  2. Plan - Identify reusable scripts/references/assets
  3. Initialize - Create skill directory with SKILL.md
  4. Edit - Implement resources, write instructions
  5. Test - Verify with real usage
  6. Iterate - Refine based on feedback

Read the full file on GitHub · 99 lines

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. 2d ago First seen · 99 lines · 35 tokens per session scan A 4d2a84d6ee5f

Subscribe to this mod's changes

skill-creator is a skill published in the GitHub repository LuizEduPP/Rememb (4 stars, last pushed 1mo ago), licensed MIT. It adds 35 tokens to every session and 654 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 2026-08-31.

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