This MCP server has foundational tool definitions but suffers from incomplete schema documentation, missing parameter descriptions, and vague implementation status. Only 2 tools are defined. Both tools have basic descriptions and input parameter declarations, but lack documented output schemas and comprehensive error handling guidance. The codebase shows placeholder implementations ('will be implemented properly in future milestones'), indicating the server is pre-release quality. Tool names follow verb_noun convention (brave_web_search, local_search) which is positive, but parameter descriptions are minimal and output structure is not specified anywhere in the visible code.

• Add explicit output schema documentation for each tool. Define and document the returned JSON structure, including field names, types, and what each field represents. Example: 'Returns an object with fields: results (array of {title: string, url: string, snippet: string}), total_count (integer), next_offset (integer).'
• Expand parameter descriptions to 50-100 characters. Include range constraints, valid values, and when defaults apply. Example: 'count: Number of results to return (1-50, default: 10). Use higher values for comprehensive coverage but beware of longer response times.'
• Clarify the distinction between brave_web_search and local_search. Explain what 'local' means (geographically local? local file system?), when to use each tool, and what types of queries each handles best.
• Implement actual API integration. Replace the placeholder return statements with real calls to the Brave Search API. Handle and document specific error cases (authentication, rate limiting, malformed query, no results).
• Add error handling guidance. Document recoverable errors (e.g. 'Rate limited. Retry after 60 seconds.') vs fatal errors (e.g. 'Invalid API key. Contact administrator.') so LLMs know whether to retry, escalate, or abort.
• Apply numeric constraints to the 'count' and 'offset' parameters. Set explicit min/max bounds (e.g. count: 1-50, offset: 0-10000) and include this in parameter descriptions.
• Document Brave Search API credential requirements. Specify how the API key is configured (environment variable, config file), what happens if it is missing, and how to rotate credentials.