data2dsl

Ticket 059: Fix comparison contract schema and query generator (F02)

• ID: ticket-059
• Owner: unresolved:human
• Status: DONE
• Workflow state: DONE
• Created: 2026-08-28

Goal and scope

Fix audit finding F02: the comparison contract schema only allows source kinds markdown and github, while 8 additional adapters emit other kinds and location types. The query generator produces metric versions, equality policies, and time periods that are rejected by the contract validator.

SESSION_EXECUTION_AUTHORIZATION recorded from user approval of implementation plan in conversation 78d87a8b-d52c-4b44-b8f5-077656700b95.

Changes are limited to:

• src/data2dsl_contract_v0/comparison.schema.json — extend source kinds, location types
• src/data2dsl_generator.py — fix metric version, policy, period
• tests/test_generator.py — add acceptance test: generated templates pass validation

No new dependencies, external coordination, or secret access required.

Acceptance criteria

• AC-01: Scope is approved (SESSION_EXECUTION_AUTHORIZATION recorded).
• AC-02: Schema accepts all 10 adapter source kinds and their location types.
• AC-03: Generator emits valid metric version (v1), valid equality policy, and dynamic time period.
• AC-04: generate_query_template() output for every adapter passes validate_document().
• AC-05: All existing tests still pass (91/91). New acceptance test added.

Participants

• Human participant: unresolved; no user-* file was created by this script.
• Agent participant: ai-antigravity.md