F030: Self-Healing Suggest Mode

[sefaertunc]

Description

Default self-healing mode. When approved tests break after code changes, suggests fixes for human approval.

Module

src/cognova/healing/healer.py

Flow

1. Classify failure (structural vs assertion)
2. Diff code-under-test (what changed since test was approved)
3. Generate fix suggestion with explanation
4. Present to user for approval
5. If approved: update test, keep in LanceDB
6. If rejected: user fixes manually

Healed test metadata

• Tagged { healed: true, healed_at: timestamp }
• Excluded from LanceDB few-shot retrieval until re-approved

Class: TestHealer

• diagnose(test_path, failure_output) -> HealingDiagnosis
• suggest_fix(diagnosis) -> HealingSuggestion
• apply_fix(suggestion) -> HealingResult

MCP Tool

heal_test

Status

Placeholder (32 lines, class docstring + pass)