Kode-cli/CLAUDE.md

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Development Commands

Essential Development Workflow

# Install dependencies
bun install

# Run in development mode (hot reload with verbose output)
bun run dev

# Build the CLI wrapper for distribution
bun run build

# Clean build artifacts
bun run clean

# Run tests
bun test

# Check types
bun run typecheck

# Format code
bun run format
bun run format:check

Build System Details

• Primary Build Tool: Bun (required for development)
• Distribution: Smart CLI wrapper (cli.js) that prefers Bun but falls back to Node.js with tsx loader
• Entry Point: src/entrypoints/cli.tsx
• Build Output: cli.js (executable wrapper) and .npmrc (npm configuration)

Publishing

# Publish to npm (requires build first)
npm publish
# Or with bundled dependency check skip:
SKIP_BUNDLED_CHECK=true npm publish

High-Level Architecture

Core System Design

Kode implements a three-layer parallel architecture inspired by Claude Code:

1. User Interaction Layer (src/screens/REPL.tsx)

   • Interactive terminal interface using Ink (React for CLI)
   • Command parsing and user input handling
   • Real-time UI updates and syntax highlighting

2. Orchestration Layer (src/tools/TaskTool/)

   • Dynamic agent system for task delegation
   • Multi-model collaboration and switching
   • Context management and conversation continuity

3. Tool Execution Layer (src/tools/)

   • Specialized tools for different capabilities (File I/O, Bash, Grep, etc.)
   • Permission system for secure tool access
   • MCP (Model Context Protocol) integration

Multi-Model Architecture

Key Innovation: Unlike single-model systems, Kode supports unlimited AI models with intelligent collaboration:

• ModelManager (src/utils/model.ts): Unified model configuration and switching
• Model Profiles: Each model has independent API endpoints, authentication, and capabilities
• Model Pointers: Default models for different purposes (main, task, reasoning, quick)
• Dynamic Switching: Runtime model changes without session restart

Agent System (src/utils/agentLoader.ts)

Dynamic Agent Configuration Loading with 5-tier priority system:

1. Built-in (code-embedded)
2. ~/.claude/agents/ (Claude user)
3. ~/.kode/agents/ (Kode user)
4. ./.claude/agents/ (Claude project)
5. ./.kode/agents/ (Kode project)

Agents are defined as markdown files with YAML frontmatter:

---
name: agent-name
description: "When to use this agent"
tools: ["FileRead", "Bash"] # or "*" for all tools
model: model-name # optional
---

System prompt content here...

Tool Architecture

Each tool follows a consistent pattern in src/tools/[ToolName]/:

• [ToolName].tsx: Main tool implementation with React UI
• prompt.ts: Tool-specific system prompts
• Tool schema using Zod for validation
• Permission-aware execution

Service Layer

• Claude Service (src/services/claude.ts): Primary AI model interface
• OpenAI Service (src/services/openai.ts): OpenAI-compatible models
• Model Adapter Factory (src/services/modelAdapterFactory.ts): Unified model interface
• MCP Client (src/services/mcpClient.ts): Model Context Protocol for tool extensions

Configuration System (src/utils/config.ts)

Hierarchical Configuration supporting:

• Global config (~/.kode.json)
• Project config (./.kode.json)
• Environment variables
• CLI parameter overrides
• Multi-model profile management

Context Management

• Message Context Manager (src/utils/messageContextManager.ts): Intelligent context window handling
• Memory Tools (src/tools/MemoryReadTool/, src/tools/MemoryWriteTool/): Persistent memory across sessions
• Project Context (src/context.ts): Codebase understanding and file relationships

Permission System (src/permissions.ts)

Security-First Tool Access:

• Granular permission requests for each tool use
• User approval required for file modifications and command execution
• Tool capability filtering based on agent configuration
• Secure file path validation and sandboxing

Important Implementation Details

Async Tool Descriptions

Critical: Tool descriptions are async functions that must be awaited:

// INCORRECT
const description = tool.description

// CORRECT
const description = typeof tool.description === 'function' 
  ? await tool.description() 
  : tool.description

Agent Loading Performance

• Memoization: LRU cache to avoid repeated file I/O
• Hot Reload: File system watchers for real-time agent updates
• Parallel Loading: All agent directories scanned concurrently

UI Framework Integration

• Ink: React-based terminal UI framework
• Component Structure: Follows React patterns with hooks and context
• Terminal Handling: Custom input handling for complex interactions

Error Handling Strategy

• Graceful Degradation: System continues with built-in agents if loading fails
• User-Friendly Errors: Clear error messages with suggested fixes
• Debug Logging: Comprehensive logging system (src/utils/debugLogger.ts)

TypeScript Integration

• Strict Types: Full TypeScript coverage with strict mode
• Zod Schemas: Runtime validation for all external data
• Tool Typing: Consistent Tool interface for all tools

Key Files for Understanding the System

Core Entry Points

• src/entrypoints/cli.tsx: Main CLI application entry
• src/screens/REPL.tsx: Interactive terminal interface

Tool System

• src/tools.ts: Tool registry and exports
• src/Tool.ts: Base tool interface definition
• src/tools/TaskTool/TaskTool.tsx: Agent orchestration tool

Configuration & Model Management

• src/utils/config.ts: Configuration management
• src/utils/model.ts: Model manager and switching logic
• src/utils/agentLoader.ts: Dynamic agent configuration loading

Services & Integrations

• src/services/claude.ts: Main AI service integration
• src/services/mcpClient.ts: MCP tool integration
• src/utils/messageContextManager.ts: Context window management

Development Patterns

Adding New Tools

1. Create directory in src/tools/[ToolName]/
2. Implement [ToolName].tsx following existing patterns
3. Add prompt.ts for tool-specific prompts
4. Register in src/tools.ts
5. Update tool permissions in agent configurations

Adding New Commands

1. Create command file in src/commands/[command].tsx
2. Implement command logic with Ink UI components
3. Register in src/commands.ts
4. Add command to help system

Model Integration

1. Add model profile to src/constants/models.ts
2. Implement adapter if needed in src/services/adapters/
3. Update model capabilities in src/constants/modelCapabilities.ts
4. Test with existing tool suite

Agent Development

1. Create .md file with proper YAML frontmatter
2. Place in appropriate directory based on scope
3. Test with /agents command
4. Verify tool permissions work correctly