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 skills add mrsimpson/agentskills-mcp --skill designgit clone --depth 1 https://github.com/mrsimpson/agentskills-mcpWrote 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/mrsimpson/agentskills-mcp/design)<a href="https://agentmods.dev/skills/mrsimpson/agentskills-mcp/design"><img src="https://agentmods.dev/badge/skills/mrsimpson/agentskills-mcp/design/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/mrsimpson/agentskills-mcp/design"><img src="https://agentmods.dev/badge/skills/mrsimpson/agentskills-mcp/design.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00021 | $0.00168 |
| Opus 5 | $0.00010 | $0.00084 |
| Sonnet 5 | $0.00004 | $0.00034 |
| Haiku 4.5 | $0.00002 | $0.00017 |
Grade A, and why
design 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 8d 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
You are developing an application that should be compatible with the SAB ecosystem. This means that your application should follow certain architectural and design principles, use specific libraries, and adhere to guidelines that ensure it can integrate seamlessly with other components in the SAB ecosystem.
Most important: for all your questions, use the agentic-knowledge search_docs tool. Use it intensively to find the right information in the documentation, and only if you are sure that you have found the right information, use it to answer the question. If you are not sure, keep searching for more information until you are sure. Do not guess or assume anything that is not explicitly stated in the documentation.
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.
- 8d ago First seen · 17 lines · 21 tokens per session scan A 650107692ae9
design is a skill published in the GitHub repository mrsimpson/agentskills-mcp (4 stars, last pushed today), licensed MIT. It adds 21 tokens to every session and 168 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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