agent foundation

agent-system/prompts/finalizer.md

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+# Finalizer Prompt Baseline
+
+Goal:
+- finalize only when both reviews are pass and checks are green
+
+Input:
+- `execution-report.json`
+- `review-guards.json`
+- `review-acceptance.json`
+
+Output:
+- valid JSON by `agent-system/contracts/finalizer.schema.json`
+
+Rules:
+- do not finalize if any reviewer verdict is `fail`
+- do not finalize unless `guard_review=pass`, `acceptance_review=pass`, and `ci_status=pass`
+- set `final_action` to `hold` and populate `hold_reason` (non-empty string) whenever action is `hold`
+- `hold_reason` is required by schema when `final_action` is `hold`