feat(mcp): add structured metadata field to MCP tool responses #64
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- Define MCPMetadata interface with core metrics (tokens, duration_ms, timestamp, cached) - Add data quality fields (results_total, results_returned, results_truncated) - Include future-ready fields for confidence, warnings, request_id - Update FormattedResult to use 'tokens' instead of 'tokenEstimate' Part of #51
- Remove token footer from content string (moved to metadata) - Return tokens as separate field in FormattedResult - Update formatter tests for new structure Part of #51
- Update search, github, status adapters to populate MCPMetadata - Include tokens, duration_ms, timestamp, cached, results_total - Use duration_ms instead of executionTime in adapter registry - Update all adapter tests for new metadata structure Closes #51
- Narrow repoRoot scope in slow tests to avoid timeouts - Add explicit timeout of 10s for integration-style tests - Tests now complete in <1s instead of timing out
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Summary
Adds a dedicated
metadatafield to MCP tool responses for operational data like token counts, timing, and result statistics. This separates operational metadata from content, making it easier for AI tools to parse and use programmatically.Changes
New
MCPMetadataInterfacetokens,duration_ms,timestamp,cachedresults_total,results_returned,results_truncatedconfidence,warnings,request_id, etc.Formatter Updates
{ content, tokens }instead of embedding token info in content🪙 ~XX tokensfooter from content stringsAdapter Updates
search-adapter,github-adapter,status-adapternow populate fullMCPMetadataadapter-registryusesduration_msinstead ofexecutionTimeTest Fixes
Testing
Closes #51