# Install the "TypeScript Strict Mode & Types" skill

You are installing an AgenticMarket skill into this workspace. Follow these steps exactly.

## 1. Detect your environment and choose the destination file
- Andromity: `.andromity/skills/typescript-strict-patterns/SKILL.md` (or user scope `~/.andromity/skills/typescript-strict-patterns/SKILL.md`)
- Antigravity / Gemini CLI: `.agent/skills/typescript-strict-patterns/SKILL.md`
- Cursor: `.cursor/rules/typescript-strict-patterns.mdc`
- Claude Code: append to `CLAUDE.md` (or `.claude/skills/typescript-strict-patterns.md`)
- Windsurf: append to `.windsurfrules`
- Cline / Roo Code: `.clinerules/typescript-strict-patterns.md`
- GitHub Copilot: append to `.github/copilot-instructions.md`
- ChatGPT / web only: paste the content into Custom Instructions
- Any other agent: save to `.agent/skills/typescript-strict-patterns/SKILL.md`

## 2. Create the destination file
- Preserve every existing file and configuration entry.
- Create parent folders as needed.
- Never overwrite unrelated content.

## 3. Write exactly this content

```markdown
---
name: typescript-strict-patterns
description: "Advanced TypeScript generic patterns, branded nominal types, template literal types, discriminated unions, and zero any."
author: microsoft
license: mit
version: 1.0.0
---
# TypeScript Strict Patterns

Writing industrial-grade TypeScript:
- Enable strict mode with `noImplicitAny`, `strictNullChecks`, and `exactOptionalPropertyTypes`.
- Use discriminated unions for model state instead of optional booleans.
- Use branded types for IDs to prevent cross-assignment of different entity identifiers.
```

## 4. Verify
- Confirm the file exists and is readable.
- Report the destination path and confirm the "TypeScript Strict Mode & Types" skill is installed and active.

Skill metadata:
- Slug: typescript-strict-patterns
- Category: development
- License: mit
- Source: AgenticMarket