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4a2e3f8389
Full R0-R13 calculation engine with: - Guided data collection (N bolts, per-bolt load, DA_prime, thermal dT) - Auto-sizing script (M4->M39 iteration across strength classes) - fm_table A1 lookup for fast MA/FM queries without full R0-R13 - Warnings for stainless steel galling, ESV insert threads (Helicoil/Ensat) - Bolt circle load distribution formula (FA + MB + MT) - 7 evals covering static, fatigue, ESV aluminium, pressure seal, thermal steel-aluminium, and combined FA+FQ cases Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude Skills — Mechanical Design Engineer
A collection of custom skills for Claude.ai that transform the assistant into an expert mechanical design engineer with 20+ years of experience.
Repository structure
skills-claude/
├── README.md
├── compress-skills.sh # Script to generate .zip packages
└── <skill-name>/
├── SKILL.md # Main instructions (YAML frontmatter + markdown)
├── reference/ # Technical reference documentation
│ └── *.md
└── scripts/ # Executable helper scripts
└── *.py / *.sh
How to install skills on Claude.ai
1. Generate .zip files
chmod +x compress-skills.sh
./compress-skills.sh
The .zip files are created in the dist/ folder.
2. Upload to Claude.ai
- Go to claude.ai → Settings
- Section Features → Skills
- Click Upload skill and upload each
.zipfile fromdist/ - Repeat for every skill
3. Use the skills
Invoke skills with a slash command in chat:
/<skill-name> [problem description]
Skill format (Anthropic spec)
The SKILL.md file contains:
- YAML frontmatter with
name,description,user-invocable - Markdown instructions that define Claude's behaviour
---
name: skill-name
description: What this skill does and when to invoke it
user-invocable: true
argument-hint: [optional argument]
---
# Skill Title
[Detailed instructions in markdown]
References
- ANTHROPIC-SKILLS-DOCS.md — full reference extracted from official docs (structure, frontmatter, best practices, API)
- Anthropic Skills Documentation
- Agent Skills API
- Skill Authoring Best Practices