name: bias-assessor
description: |
Use when evidence-review has an extraction table and needs lightweight risk-of-bias fields.
Trigger: bias, risk-of-bias, RoB, evidence quality, 偏倚评估, 证据质量.
Use when: evidence-review 已生成 papers/extraction_table.csv，需要在 synthesis 前补齐偏倚/质量字段。
Skip if: 不是 evidence/systematic review，或还没有 papers/extraction_table.csv。
Network: none.
Guardrail: 使用简单可复核刻度（low/unclear/high）+ 简短 notes；保持字段一致性。
Bias Assessor
Enriches the extraction table with lightweight risk-of-bias fields for evidence-review.
Input
papers/extraction_table.csv
Output
- updated
papers/extraction_table.csv
Contract
The table should expose stable RoB columns:
rob_selectionrob_measurementrob_confoundingrob_reportingrob_overallrob_notes
Allowed values are fixed:
lowunclearhigh
Script boundary
scripts/run.py should:
- add missing RoB columns
- assign a conservative overall score
- keep notes brief
Acceptance
- RoB columns exist
- all included rows have values
- values stay within the fixed scale
Non-goals
- deep methodological critique
- rewriting extraction contents