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Data Visualization -- Technical Specification

Version: v1.1.9 | Status: Active | Last Updated: March 2026

Functional Requirements​

FR-1: Core Functionality​

  • The module shall provide data visualization capabilities as described in the module docstring.
  • The module shall export 35 public symbols via __all__.

FR-2: MCP Integration​

  • The module shall expose 2 MCP tools for agent consumption.

Interface Contracts​

MCP Tool Signatures​

  • generate_chart()
  • export_dashboard()

Non-Functional Requirements​

NFR-1: Zero-Mock Testing​

  • All tests follow the Zero-Mock policy -- no unittest.mock, MagicMock, or monkeypatch.

NFR-2: Explicit Failure​

  • All failures shall raise exceptions; no silent fallbacks or placeholder returns.