# Plan: Fix S1 test API response nesting bug

## Goal
Fix test_s1_agents.py TC6: API response `response` field is nested under `data`, not at top level.

## Files
- test_s1_agents.py — line 152: `body.get("response")` → `body.get("data", {}).get("response")`

## Verification
- `python3 test_s1_agents.py` → 6/6 PASS
- `python3 test_smoke.py` → 8/8 PASS