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/skillscatalog/registry/basic-skillnpx skills add SkillsCatalog/registry --skill basic-skillgit clone --depth 1 https://github.com/SkillsCatalog/registryWhat 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 | $0.00013 | $0.00252 |
| Opus 5 | $0.00006 | $0.00126 |
| Sonnet 5 | $0.00003 | $0.00050 |
| Haiku 4.5 | $0.00001 | $0.00025 |
Grade A, and why
my-skill-name 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.
What it actually says
Instructions
Describe how an AI agent should use this skill. Be specific about:
- What the skill accomplishes
- When to use it
- What inputs it needs
- What outputs it produces
Prerequisites
List any requirements:
- API keys needed
- Environment setup
- Dependencies
How to Use
Provide clear instructions:
Example prompt that triggers this skill
Output
Show expected output format:
Example output
Examples
Example 1: Basic usage
User: [Example user request]
Agent: [Example agent response using this skill]
Example 2: Advanced usage
User: [More complex request]
Agent: [Agent response showing advanced features]
Limitations
- List any known limitations
- Edge cases that don't work
- Rate limits or restrictions
Dependencies
- Python 3.9+
- List pip packages
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.
- 2d ago First seen · 68 lines · 13 tokens per session scan A 14b3fd1884c2
my-skill-name is a skill published in the GitHub repository SkillsCatalog/registry (1 stars, last pushed 8mo ago), licensed MIT. It adds 13 tokens to every session and 252 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 2026-08-31.
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