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/codingfeng101/canvasanvil/cad-skillnpx skills add CodingFeng101/CanvasAnvil --skill cad-skillgit clone --depth 1 https://github.com/CodingFeng101/CanvasAnvilWrote 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/codingfeng101/canvasanvil/cad-skill)<a href="https://agentmods.dev/skills/codingfeng101/canvasanvil/cad-skill"><img src="https://agentmods.dev/badge/skills/codingfeng101/canvasanvil/cad-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 | $0.00053 | $0.01079 |
| Opus 5 | $0.00026 | $0.00540 |
| Sonnet 5 | $0.00011 | $0.00216 |
| Haiku 4.5 | $0.00005 | $0.00108 |
Grade A, and why
cad-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 today.
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.
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.
What ships with it
41 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.
- agents/openai.yaml 300 B
- config/image-provider.json 51 B
- package.json 334 B
- prompts/analysis-images.md 347 B
- prompts/bom.md 1.9 KB
- prompts/detail-drawings.md 3.4 KB
- prompts/elevation-index-and-interior-elevations.md 3.7 KB
- prompts/floor-finish-plan.md 3.2 KB
- prompts/images-master.md 437 B
- prompts/images-sheet.md 675 B
- prompts/key-strategy-board.md 1.7 KB
- prompts/master-renovation-scheme.md 2.1 KB
- prompts/mep-plan.md 3.6 KB
- prompts/overall-analysis-board.md 1.7 KB
- prompts/plan.md 3.0 KB
- prompts/reflected-ceiling-plan.md 3.4 KB
- prompts/renovation-plan-layout.md 4.1 KB
- prompts/router.md 713 B
- prompts/svg-patch.md 11 KB
- prompts/svg-replace.md 11 KB
- prompts/svg-router.md 1.5 KB
- prompts/wall-setting-out-plan.md 3.7 KB
- references/image-agents/detail-drawings.md 3.4 KB
- references/image-agents/elevation-index-and-interior-elevations.md 3.7 KB
- references/image-agents/floor-finish-plan.md 3.2 KB
- references/image-agents/key-strategy-board.md 1.7 KB
- references/image-agents/master-renovation-scheme.md 2.1 KB
- references/image-agents/mep-plan.md 3.6 KB
- references/image-agents/overall-analysis-board.md 1.7 KB
- references/image-agents/reflected-ceiling-plan.md 3.4 KB
- references/image-agents/renovation-plan-layout.md 4.1 KB
- references/image-agents/wall-setting-out-plan.md 3.7 KB
- references/image-provider-config.md 818 B
- references/output-contract.md 430 B
- references/task-types.md 672 B
- scripts/build-cad-bundle.mjs 3.6 KB runs code
- scripts/export-cad-2d-image.mjs 3.6 KB runs code
- scripts/generate-cad-image.mjs 3.0 KB runs code
- scripts/lib/gateway.mjs 4.1 KB runs code
- scripts/lib/image-route.d.mts 656 B
- scripts/lib/image-route.mjs 794 B runs code
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.
- today Changed · -12 lines cc2bc3b021f2
- 4d ago First seen · 149 lines · 53 tokens per session scan A 6c1eef8b1cbc
cad-skill is a skill published in the GitHub repository CodingFeng101/CanvasAnvil (93 stars, last pushed 2d ago), licensed AGPL-3.0. It adds 53 tokens to every session and 1,079 once invoked, about $0.0003 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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