MCP Tools Implementation

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# MCP Tools Implementation

## Tool Structure
- All MCP tools should follow a consistent structure
- Each tool is defined in `src/tools/` with a prefix of `umi-`
- Tools should export a function that returns a `Tool` object
- Tools should define input and output schemas

## Input/Output Schemas
- Define input schemas using zod
- Define output schemas to match expected return values
- Follow [MCP spec](mdc:https:/github.com/ModelContractProtocol/spec) for schema definitions
- Use descriptive names for schema properties

## Error Handling
- Use proper error handling with descriptive messages
- Return structured error responses when appropriate
- Validate inputs before processing

## Tool Implementation
- Keep tool implementations focused on a single responsibility
- Reuse common code for similar tools (like config management)
- Document tools with clear descriptions
- Export tools in the `src/index.ts` file for consumption

## Examples
- Config tools: [umi-config.ts](mdc:src/tools/umi-config.ts)
- Generator tools: [umi-generate.ts](mdc:src/tools/umi-generate.ts)
- Data retrieval tools: [umi-route-list.ts](mdc:src/tools/umi-route-list.ts)