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Issue Verification Report: Data Copilot Series (#186-#190)

This report verifies that the requirements for GitHub issues #186 through #190 have been fully implemented and integrated into the repository as of April 2026.

Issue Mapping

Issue # Title Primary Deliverable Status
#186 Layered Text-to-SQL Architecture docs/architecture/data-copilot-text-to-sql.md Closed
#187 MCP Tool/Data Standardization docs/knowledge_base/patterns/data-copilot-mcp-tooling.md Closed
#188 Agentic RAG + Hybrid Retrieval docs/knowledge_base/patterns/data-copilot-agentic-rag.md Closed
#189 SQL Validation & Repair Guardrails docs/playbooks/data-copilot-sql-validation.md Closed
#190 Answer Synthesis Schema docs/reference-implementations/data-copilot/answer-synthesis-schema.md Closed

Detailed Verification

#186: Layered Text-to-SQL Architecture

  • Requirement: Define a 5-layer pipeline (Router -> Intent -> Table -> Prune -> SQL).
  • Implementation: The architecture is fully defined in docs/architecture/data-copilot-text-to-sql.md, including a Mermaid diagram of the layers and HITL checkpoints.
  • Reference: roadmap.md under "🌟 Future Projects -> Data Copilot".

#187: MCP Tool/Data Standardization

  • Requirement: Use MCP for data/tool access with free/cheap integration paths.
  • Implementation: docs/knowledge_base/patterns/data-copilot-mcp-tooling.md provides an integration matrix, 5 concrete examples (SQL, Docs, KPI, HA API, Metadata), and a migration path.
  • Reference: roadmap.md under "🌟 Future Projects -> Data Copilot".

#188: Agentic RAG + Hybrid Retrieval

  • Requirement: Pattern for diagnostic analytics using SQL + Docs.
  • Implementation: docs/knowledge_base/patterns/data-copilot-agentic-rag.md defines the agentic planner logic, a hybrid workflow diagram, and includes a root-cause investigation example ("Why did metric X drop?").
  • Reference: roadmap.md under "🌟 Future Projects -> Data Copilot".

#189: SQL Validation & Repair Guardrails

  • Requirement: Safety rules, syntactic/semantic validation, and repair loops.
  • Implementation: docs/playbooks/data-copilot-sql-validation.md includes a 4-stage pipeline, a policy checklist (row limits, no mutations, etc.), and a self-correction logic definition.
  • Reference: roadmap.md under "🌟 Future Projects -> Data Copilot".

#190: Answer Synthesis Schema

  • Requirement: Standardized output including sources, confidence, and actions.
  • Implementation: docs/reference-implementations/data-copilot/answer-synthesis-schema.md provides a Pydantic schema (SynthesisResponse), a prompt contract, and two detailed example outputs (lookup and diagnosis).
  • Reference: roadmap.md under "🌟 Future Projects -> Data Copilot".

Conclusion

Issues #186, #187, #188, #189, and #190 are considered Closed/Complete. The requested architectural patterns and documentation have been merged into the canonical repository structure.

  • Last reviewed: 2026-04-26
  • Confidence: high