### expert_build/propose.py:cmd_propose_beliefs
VERDICT: PASS
CORRECTNESS: VALID
SPEC_COMPLIANCE: N/A
ISSUE_COMPLIANCE: N/A
BELIEF_COMPLIANCE: CONSISTENT
TEST_COVERAGE: COVERED
INTEGRATION: WIRED
REASONING: The addition of the `source:` key fallback for `source_url` extraction is correct and includes a necessary URL scheme check (`http://` or `https://`) to avoid misidentifying local paths as URLs. This ensures better metadata propagation from documents fetched via `fetch-docs` to the belief proposal phase.
---

### expert_build/summarize.py:cmd_summarize
VERDICT: PASS
CORRECTNESS: VALID
SPEC_COMPLIANCE: N/A
ISSUE_COMPLIANCE: N/A
BELIEF_COMPLIANCE: CONSISTENT
TEST_COVERAGE: COVERED
INTEGRATION: WIRED
REASONING: Refactoring to write entry files directly to the `entries/YYYY/MM/DD/` directory simplifies the system by removing the dependency on an external `entry` CLI. The addition of provenance frontmatter (`source`, `source_url`, `source_id`) ensures that the origin of information is preserved throughout the pipeline. The implementation correctly handles frontmatter stripping and truncation for large files.
---

### tests/test_propose.py
VERDICT: PASS
CORRECTNESS: VALID
SPEC_COMPLIANCE: N/A
ISSUE_COMPLIANCE: N/A
BELIEF_COMPLIANCE: CONSISTENT
TEST_COVERAGE: COVERED
INTEGRATION: WIRED
REASONING: New tests verify the source URL extraction logic, including cases where `source_url` is present, where `source` contains a URL, and where `source` contains a local path (which should be ignored).
---

### tests/test_summarize.py
VERDICT: PASS
CORRECTNESS: VALID
SPEC_COMPLIANCE: N/A
ISSUE_COMPLIANCE: N/A
BELIEF_COMPLIANCE: CONSISTENT
TEST_COVERAGE: COVERED
INTEGRATION: WIRED
REASONING: Existing tests were appropriately updated to reflect the move from `subprocess` mocking to direct file verification. New tests provide comprehensive coverage for the provenance frontmatter propagation and the new hierarchical directory structure for entries.
---

### SELF_REVIEW
LIMITATIONS: None. Full function bodies were provided in the observations, and the tests were included in the diff and verified against the implementation.
---
