# Context: Phase 177.2 Fresh First-Use Post-Registration Replay Proof

## Why this phase exists

After Phases `177` and `177.1`, the bounded first-use route now updates both
runtime state and the selected next action after registration. The final step
is to package that as one replayable mechanical proof.

## Files in scope

- `research/knowledge-hub/runtime/scripts/run_first_run_topic_acceptance.py`
- `research/knowledge-hub/tests/test_runtime_scripts.py`

## Boundaries

- this phase proves only the bounded first-use post-registration route
  transition
- it does not claim that later L1/L2/L3 scientific work is already solved
