Expand the read-only GA4 MCP surface for Codex workflows

[frankii91]

Summary

• add additional safe read-only admin and reporting tools for GA4
• add live validation and SDK-vs-MCP read-surface audit scripts
• document the exposed tool surface and the intentional secret-related omissions

Validation

• uv run --with pytest python -m pytest -q tests
• live validation against GA4 property 252198517
• read-surface audit now reports unexplained_missing_count = 0

Notes

Measurement protocol secret reads remain intentionally excluded from the MCP surface.

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[riawextmankind]

Summary

• add additional safe read-only admin and reporting tools for GA4
• add live validation and SDK-vs-MCP read-surface audit scripts
• document the exposed tool surface and the intentional secret-related omissions

Validation

• uv run --with pytest python -m pytest -q tests
• live validation against GA4 property 252198517
• read-surface audit now reports unexplained_missing_count = 0

Notes

Measurement protocol secret reads remain intentionally excluded from the MCP surface.

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