Use when `evidence-review` has completed extraction and needs a bounded narrative synthesis. **Trigger**: synthesis, evidence synthesis, systematic review writing, 综合写作, SYNTHESIS.md. **Use when**: `evidence-review` 完成 screening+extraction（含 bias 评估）后进入写作阶段（C5）。 **Skip if**: 还没有 `papers/extraction_t
Use when `evidence-review` has completed extraction and needs a bounded narrative synthesis. **Trigger**: synthesis, evidence synthesis, systematic review writing, 综合写作, SYNTHESIS.md. **Use when**: `evidence-review` 完成 screening+extraction（含 bias 评估）后进入写作阶段（C5）。 **Skip if**: 还没有 `papers/extraction_table.csv`（或 protocol/screening 尚未完成）。 **Network**: none. **Guardrail**: 以 extraction table 为证据底座；明确局