Add custom CLI commands feature

[bhouston]

Custom CLI Commands Feature

This PR implements the custom CLI commands feature requested in issue #251. It allows users to define custom commands in their mycoder.config.js file.

Features

• Define custom CLI commands in mycoder.config.js
• Commands can have required and optional arguments
• Commands execute JavaScript functions that return prompts
• Documentation added in docs/custom-commands.md
• Example configuration in mycoder.config.js (commented out)

Implementation

• Extended the Config type to include custom commands
• Created a custom command handler in packages/cli/src/commands/custom.ts
• Refactored the default command handler for reuse
• Added validation for custom commands
• Updated the main index.ts to register custom commands

Example Usage

// mycoder.config.js
export default {
  // ... other config options
  
  // Custom commands
  commands: {
    "search": {
      description: "Search for a term in the codebase",
      args: [
        { name: "term", description: "Search term", required: true }
      ],
      execute: (args) => {
        return `Find all instances of ${args.term} in the codebase and suggest improvements`;
      }
    }
  }
};

Then users can run:

mycoder search "deprecated API"

Notes

As requested, this implementation only includes the JavaScript function-based command executor and not the string template version.

Closes #251

[sentry]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ Error: Anthropic API key is required new AnthropicProvider(anthropic.ts) View Issue
• ‼️ Error: OpenAI API key is required new OpenAIProvider(openai.ts) View Issue
• ‼️ Error: Error calling OpenAI API: 400 Invalid 'content' field OpenAIProvider.generateText(openai.ts) View Issue
• ‼️ TypeError: Cannot set property stdout of # which has only a getter initInteractiveInput(interactiveInput.ts) View Issue
• ‼️ ReferenceError: require is not defined createMcpTool(mcp.ts) View Issue

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[github-actions]

🎉 This PR is included in version mycoder-v1.4.0 🎉

The release is available on:

• pnpm package (@latest dist-tag)
• GitHub release

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