Borrowing it
Nothing to install: this file belongs to GadatheGod/freecad-mcp-pro. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/GadatheGod/freecad-mcp-pro/main/.opencode/skills/f-to-spec/SKILL.mdgit clone --depth 1 https://github.com/GadatheGod/freecad-mcp-proWrote 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/gadathegod/freecad-mcp-pro/f-to-spec)<a href="https://agentmods.dev/skills/gadathegod/freecad-mcp-pro/f-to-spec"><img src="https://agentmods.dev/badge/skills/gadathegod/freecad-mcp-pro/f-to-spec/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/gadathegod/freecad-mcp-pro/f-to-spec"><img src="https://agentmods.dev/badge/skills/gadathegod/freecad-mcp-pro/f-to-spec.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 | $0.00025 | $0.00566 |
| Opus 5.5 | $0.00010 | $0.00226 |
| Sonnet 5.5 | $0.00005 | $0.00113 |
| Haiku 4.5 | $0.00003 | $0.00057 |
Grade A, and why
f-to-spec 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 2mo 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 — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.
To Spec — FreeCAD Edition
Turn the current conversation about a FreeCAD design into a spec. Do NOT interview the user — synthesize what you already know.
Context
- FreeCAD docs:
/home/praveen/Desktop/Freecadmcp/docs/freecad/ - Object reference:
/home/praveen/Desktop/Freecadmcp/.opencode/skills/freecad-objects/ - ADRs:
/home/praveen/Desktop/Freecadmcp/.scratch/adrs/(if any)
Process
1. Read conversation context
Extract all design decisions, dimensions, materials, constraints, and workbenches discussed.
2. Search FreeCAD docs
Look up relevant documentation for the chosen workbench, object types, and FEM setup.
3. Write the spec using this template:
Part Name
The name and purpose of the FreeCAD part/assembly.
Design Intent
From the user's perspective — what this part does, how it fits into a larger assembly, what it supports.
Dimensions & Tolerances
All key dimensions with units. Tolerances where relevant.
Workbench & Objects
| Layer | Workbench | Object Type | Key Properties |
|---|---|---|---|
| Base | PartDesign/Part | Part::Box/Part::Cylinder etc. | Length, Width, Height, Radius |
| Features | PartDesign | Pad/Pocket/Revolution etc. | Sketch references, depth |
| FEM | FEM | ConstraintFixed, ConstraintForce, FemMeshGmsh | References, values |
Material
Material name, density, Young's modulus, Poisson's ratio.
FEM Setup (if applicable)
- Mesh: CharacteristicLengthMax/Min
- Constraints: Fixed faces, force locations/magnitudes
- Expected results: Max stress, displacement
Assembly Structure (if applicable)
- Parts involved
- Mating constraints between parts
- Degrees of freedom
FreeCAD File Structure
Document: <name>
├── Body: <name>
│ ├── Sketch: <name>
│ ├── Pad: <name>
│ ├── Pocket: <name>
│ └── FEM:
│ ├── ConstraintFixed
│ ├── ConstraintForce
│ └── FemMeshGmsh
Out of Scope
Features or analyses not included in this spec.
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.
- 2mo ago First seen · 90 lines · 25 tokens per session scan A 48d533bea187
f-to-spec is a skill published in the GitHub repository GadatheGod/freecad-mcp-pro (2 stars, last pushed 3mo ago), licensed MIT. It adds 25 tokens to every session and 566 once invoked, about $0.0001 per session on Opus 5.5. 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.
f-to-spec compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| f-to-specGadatheGod/freecad-mcp-pro | Skill | 2 | 3mo ago | MIT | A | 25 | Claude Code, OpenCode |
| imagegenopenai/codex | Skill | 133k | yesterday | Apache-2.0 | A | 113 | Codex |
| playwright-climicrosoft/playwright | Skill | 99k | yesterday | Apache-2.0 | A | 19 | Claude Code |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 4d ago | MIT | A | 200 | Claude Code, Codex |
| systematic-debuggingobra/superpowers | Skill | 313k | 3d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | yesterday | MIT | A | 95 | Claude Code |
| next-partial-prefetching-adoptionvercel/next.js | Skill | 143k | yesterday | MIT | A | 103 | Claude Code |