---
phase: 143-l0-source-discovery-via-deepxiv-mcp
plan: 01
status: passed
requirements-completed:
  - REQ-DISCOVERY-01
  - REQ-DISCOVERY-02
  - REQ-DISCOVERY-03
  - REQ-DISCOVERY-04
  - REQ-VERIFY-01
---

# Phase 143 Verification

## Status

passed

## Verification Evidence

- source discovery contract tests:
  - `python -m pytest research/knowledge-hub/tests/test_source_discovery_contracts.py -q`
  - result: `3 passed`
- isolated acceptance:
  - `python research/knowledge-hub/runtime/scripts/run_l0_source_discovery_acceptance.py --json`
  - result: `success`
  - checks:
    - selected provider: `search_results_json`
    - selected arXiv id: `2401.00001v2`
    - discovery receipts, Layer 0 source, global index, and Layer 1 projection all materialized on an isolated temp kernel root
- runtime acceptance harness slice:
  - `python -m pytest research/knowledge-hub/tests/test_runtime_scripts.py -k l0_source_discovery_acceptance -q`
  - result: `1 passed, 28 deselected`

## Notes

- Verification stayed intentionally targeted to the new `L0` discovery lane.
- No full-suite rerun was performed in this step because the repository already
  contains unrelated in-flight working-tree changes outside Phase `143`.
