Explanation built and opened.

- **file**
  - `/tmp/2026-07-11-skim-eval-example-explanation.html`
  - 58 KB
  - self-contained HTML · CSS · JS
- Δ **change**
  - `1c80ad4` “use eval example to improve”
  - 13 files
  - +492/−33
- **coverage**
  - **Background**
    - deep: Skim contracts · anatomy
    - systems: eval harness · improvement loop
    - narrow: 3 pre-commit gaps
  - **Intuition**
    - specimen · 4 failure modes
    - two-forms-one-tree trick
    - 7-child violation
  - **Code**
    - 3rd linter shape
    - 3 new checks
    - per-container prompts · rule alignment
  - **Diagrams ×6**
    - **structure**
      - reply anatomy
      - structure tree
    - **process**
      - eval dataflow
      - improvement loop
    - **mapping**
      - two-forms-one-tree
    - **history**
      - commit thread
  - **Quiz ×5**
    - interactive answers
    - immediate feedback
    - live score
- ✓ **checks**
  - 19 `<pre>` blocks
  - code whitespace preserved
  - no ASCII diagrams
  - tags balanced
  - tests 14/14