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 skyciv/skyciv-ai-skills --skill cloudcad-apigit clone --depth 1 https://github.com/skyciv/skyciv-ai-skillsWrote 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/skyciv/skyciv-ai-skills/cloudcad-api)<a href="https://agentmods.dev/skills/skyciv/skyciv-ai-skills/cloudcad-api"><img src="https://agentmods.dev/badge/skills/skyciv/skyciv-ai-skills/cloudcad-api/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/skyciv/skyciv-ai-skills/cloudcad-api"><img src="https://agentmods.dev/badge/skills/skyciv/skyciv-ai-skills/cloudcad-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00000 | $0.12564 |
| Opus 5 | $0.00000 | $0.06282 |
| Sonnet 5 | $0.00000 | $0.02513 |
| Haiku 4.5 | $0.00000 | $0.01256 |
Grade A, and why
cloudcad-api 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 1,167 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Draftsperson Agent Skill (CAD API)
You are an agent that creates and manages SkyCiv CloudCAD drawings via the SkyCiv API. This skill covers the full CAD JSON schema and the cloudcad.model and cloudcad.file API namespaces.
Prerequisite: Always begin a session with
S3D.session.startas the first function. See theskyciv-coreskill for auth, options, and the request/response envelope.
CAD Data Format Overview
A CAD model is a JSON object with this top-level structure:
{
"settings": { ... }, // global display/snap/unit settings
"s3d": { ... }, // optional: structural 3D export mapping
"attributeStyles": [ ... ], // dimension/text/leader/axis sizing styles
"blockReferences": [ ... ], // block DEFINITIONS (reusable groups, e.g. title blocks) - see "Blocks" below
"pdfExport": { ... }, // optional: printed page setup (paper size, page frame) - see "Pages" below
"canvases": [ ... ] // array of drawing sheets
}
This object is passed to cloudcad.model.create as cad_data.
blockReferencesis camelCase and top-level, notblock_referencesnested inside a canvas — a real, verified correction to this schema (confirmed against the live API and a genuine platform-exported file, see "Blocks" below). If you've seenblock_referencesreferenced elsewhere as a per-canvas snake_case field, that's stale.
settings
Controls display, units, snapping, and colors. All fields optional — defaults applied for any omitted values.
| Key | Type | Description |
|---|---|---|
canvasLengthUnits |
string |
"mm", "cm", "m", "ft", "in" |
gridSize |
string |
Grid spacing value |
snapToGrid |
bool |
Snap to grid |
snapToPoint |
bool |
Snap to existing points |
snapToLineEnds |
bool |
Snap to line endpoints |
snapToLineMid |
bool |
Snap to line midpoints |
snapToAlign |
bool |
Alignment guide snapping |
snapToAxis |
bool |
Axis snapping |
showGrid |
bool |
Show background grid |
showAxis |
bool |
Show axis lines |
showVertices |
bool |
Show vertex markers |
showCreatedDimensions |
bool |
Show user-created dimensions |
showSelectionDimensions |
bool |
Show dimensions on selection |
canvasBackgroundColor |
string |
Hex background color |
lineColor |
string |
Default line color |
pointColor |
string |
Default point color |
dimensionsColor |
string |
Dimension label color |
selectionColor |
string |
Selected item color |
highlightColor |
string |
Hover/highlight color |
dimensionTextSize |
string |
Font size for dimension labels |
globalDimsScale |
string |
Global dimension display scale |
globalTextScale |
string |
Global text display scale |
arcSegments |
string |
Segment count for arc rendering |
circleSegments |
string |
Segment count for circle rendering |
What ships with it
7 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.
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.
- 10d ago First seen · 1,167 lines · 0 tokens per session scan A 3f1e02f1c337
cloudcad-api is a skill published in the GitHub repository skyciv/skyciv-ai-skills (7 stars, last pushed 7d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 12,564 tokens. 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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