agentmods.dev

skill-creator

A skill for creating, editing, improving, or checking AgentSkills, which are instruction packages for coding agents.

In plain words
What is it for?
Use it to build a skill, review or audit a SKILL.md file, reorganize skill folders, or remove outdated content.
Why use it?
It helps keep skill instructions organized, accurate, and suitable for use by an agent.

Skill for Claude CodeCodex

14 2mo ago A scan 121 tokens AGPL-3.0
View the source file CodeAndCanvasLabs/Daemora
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/codeandcanvaslabs/daemora/skill-creator
Any agent
npx skills add CodeAndCanvasLabs/Daemora --skill skill-creator
Clone the repo
git clone --depth 1 https://github.com/CodeAndCanvasLabs/Daemora

Made for: Claude Code, Codex.

Per session 121 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,945 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 $0.00121 $0.03945
Opus 5 $0.00060 $0.01972
Sonnet 5 $0.00024 $0.00789
Haiku 4.5 $0.00012 $0.00394

Measured 2d ago against content hash c24f65fc88b9, 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.

The scan reads SKILL.md. This mod also ships 5 executable files (scripts/init_skill.py, scripts/package_skill.py, scripts/quick_validate.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/skill-creator/SKILL.md · 373 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, 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

6 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. 2d ago First seen · 373 lines · 121 tokens per session scan A c24f65fc88b9

Subscribe to this mod's changes

skill-creator is a skill published in the GitHub repository CodeAndCanvasLabs/Daemora (14 stars, last pushed 2mo ago), licensed AGPL-3.0. It adds 121 tokens to every session and 3,945 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.

Building agentsaiai-agentanthropicautonomous-agentclaudegemini
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