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 skills/81120/light-agent/skill_creator_skillnpx skills add 81120/light-agent --skill skill_creator_skillgit clone --depth 1 https://github.com/81120/light-agentWrote 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.
[](https://agentmods.dev/skills/81120/light-agent/skill_creator_skill)<a href="https://agentmods.dev/skills/81120/light-agent/skill_creator_skill"><img src="https://agentmods.dev/badge/skills/81120/light-agent/skill_creator_skill.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00027 | $0.00372 |
| Opus 5 | $0.00014 | $0.00186 |
| Sonnet 5 | $0.00005 | $0.00074 |
| Haiku 4.5 | $0.00003 | $0.00037 |
Grade A, and why
skill_creator_skill 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 4d 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.
What it actually says
Skill Creator
Use Cases
Use this skill to generate a new skill scaffold automatically:
- Generate
SKILL.mddocumentation - Generate script templates (Node.js / Shell / Python)
- Create directory structure
Steps
- Prepare basic skill information:
- Skill name
- Functional description
- Implementation language
- Required arguments
- Run
node scripts/skill_creator.js create. - Follow prompts and confirm creation.
Interactive Flow
The script asks for:
- Skill name: lowercase letters, underscores, and dashes, e.g.
weather_skill - Description: short summary of what the skill does
- Script language: Node.js / Shell / Python
- Script command: primary command name (e.g.
weather) - Argument list: comma-separated arguments (e.g.
city, unit) - Creation confirmation
Output Format
On success, it generates files under agent/skills/<skill_name>/:
agent/skills/<skill_name>/
├── SKILL.md # Skill documentation
└── scripts/
└── <script_name> # Script file
Example
cd /Users/leo/code/erl/light-agent/agent/skills/skill_creator_skill
node scripts/skill_creator.js create
Notes
- Skill names must follow naming rules (lowercase, underscore, dash)
- If the target skill exists, the script asks whether to overwrite
- Generated scripts are templates and should be completed for real use
What ships with it
1 file 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.
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.
- 4d ago First seen · 60 lines · 27 tokens per session scan A 29b073dbc603
skill_creator_skill is a skill published in the GitHub repository 81120/light-agent (24 stars, last pushed 3mo ago), licensed MIT. It adds 27 tokens to every session and 372 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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