Initial release: 100-file Claude Code toolkit

20 specialized agents, 10 skills, 17 slash commands, 6 plugins,
12 hooks with scripts, 8 rule sets, 3 CLAUDE.md templates,
14 MCP server configs, and interactive setup installer.

CONTRIBUTING.md

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+# Contributing
+
+Thanks for your interest in contributing to Claude Code Toolkit.
+
+## How to Contribute
+
+1. Fork the repository
+2. Create a feature branch: `git checkout -b feature/your-feature`
+3. Make your changes
+4. Test your changes locally
+5. Commit with a clear message: `git commit -m "Add new-skill: description"`
+6. Push to your fork: `git push origin feature/your-feature`
+7. Open a Pull Request
+
+## What to Contribute
+
+- **Plugins** -- New plugins go in `plugins/<plugin-name>/` with a `.claude-plugin/plugin.json` manifest.
+- **Agents** -- Agent Markdown files go in the appropriate `agents/<category>/` directory.
+- **Skills** -- Skill modules go in `skills/<skill-name>/` with a `SKILL.md` and optional examples.
+- **Commands** -- Slash command Markdown files go in `commands/<category>/`.
+- **Rules** -- Rule files go in `rules/` as standalone Markdown.
+- **Templates** -- CLAUDE.md templates go in `templates/claude-md/`, project starters in `templates/project-starters/`.
+- **MCP Configs** -- Configuration files go in `mcp-configs/` as JSON.
+- **Hook Scripts** -- Scripts go in `hooks/scripts/` with an update to `hooks/hooks.json`.
+
+## Guidelines
+
+- Keep files focused and single-purpose.
+- Use clear, descriptive names.
+- Remove code comments that are obvious or redundant.
+- Test plugins and hooks before submitting.
+- Update the README table if adding a new item to any category.
+- No generated attribution footers in files.
+
+## File Naming
+
+- Agents: `kebab-case.md` (e.g., `code-reviewer.md`)
+- Commands: `kebab-case.md` matching the slash command name
+- Skills: directory name in `kebab-case`
+- Rules: `kebab-case.md` describing the rule
+
+## Code of Conduct
+
+Be respectful, constructive, and collaborative. We follow the [Contributor Covenant](https://www.contributor-covenant.org/version/2/1/code_of_conduct/).