# Implementation Checkpoints

Each phase must preserve the research method rather than drifting into a simpler
detector.

## Non-negotiable Checks

- Event nodes are explicit and keep raw event IDs.
- Event-view and causal-view edges are both represented.
- Metapaths are time-respecting.
- Trimming returns evidence paths, not just neighbor IDs.
- Numerical statistics are computed by code before prompting.
- Prompt blocks include evidence path IDs.
- Ground-truth text is not used in prompt construction.
- Flat logs, target-only prompts, BFS, random neighbors, and GNNs are baseline or
  ablation paths only.