fix: step3 _normalize_rule 处理 section 为 list 的 LLM 格式问题 - Closes #69

LLM 输出 section 字段有时为 list 而非 string，导致 .strip() 崩溃。
添加 _clean_section() 将 list→首元素 string，空 list 回退到 rule path。

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.claude/settings.json

@@ -1,3 +1,17 @@
-{
-  "permissionMode": "bypass"
-}
+  {
+    "permissionMode": "bypass",
+    "permissions": {
+      "allow": [
+        "Bash(git *)",
+        "Bash(python scripts/agent_poller.py *)",
+        "Bash(python scripts/run_pipeline.py *)",
+        "Bash(python scripts/create_failure_issue.py *)",
+        "Bash(python -m pytest *)",
+        "Bash(python -c *)",
+        "Bash(curl *)"
+      ]
+    }
+  }
+
+
+

agents/DEV_AGENT.md

@@ -63,8 +63,11 @@ description: AI 开发专家，负责 document_analyzer 项目的功能开发、
 4. 轮询内容（多轮递进）：
    a. `--action list --labels product-code` — 先捡带 `product-code` 标签的 Issue
    b. `--action list` 无过滤，筛选 title 带 `[product]` 前缀的无标签 Issue
-   c. 都无则分析无标签、无标识的 Issue，判断是否在 Dev 域内
-5. 有 issue → 走完整闭环处理（分析 → 开发 → push → PR → CI → merge → 自行验证 → 关闭）
+   c. `--action blocked-check` — 检查 blocked Issue，若阻塞已解除则自动移除 blocked 标签
+   d. 都无则分析无标签、无标识的 Issue，判断是否在 Dev 域内
+5. 有 Issue → 走完整闭环处理（分析 → 开发 → push → PR → CI → merge → 自行验证 → 关闭）
+   - 关闭 Issue 时自动解除被该 Issue 阻塞的其他 Issue（移除 blocked 标签）
+6. 无 Issue → 报告 "main healthy，无待处理 Issue"，等待下次轮询
 6. 无 issue → 报告 "main healthy，无待处理 Issue"，等待下次轮询
 7. 同时保持对话开放，随时响应用户指令
 
@@ -86,6 +89,13 @@ python scripts/agent_poller.py --action list
 **第三轮：分析无标识 Issue**
 如果以上两轮都无结果，分析所有无标签、无 title 标识的 Issue，判断是否属于 Dev 域。
 
+**blocked Issue 处理**：
+- 不要直接跳过 `blocked` 标签的 Issue
+- 运行 `--action blocked-check` 检查阻塞状态是否已解除
+- 如果所有阻塞 Issue 已关闭 → blocked 标签自动移除 → 正常处理
+- 如果仍有未解决的阻塞 → 跳过，等待阻塞解除
+- 关闭 Issue 时会自动检查并解除被其阻塞的 Issue（auto-unblock）
+
 **处理范围**：Dev-Agent 负责处理**所有非纯测试开发**相关的 Issue。具体来说：
 
 | 处理 | 跳过 |
@@ -116,9 +126,11 @@ python scripts/agent_poller.py --action get --issue N
 1. git pull origin main
 2. git checkout -b dev/issue-N-<slug>
 3. 修改功能代码 + 更新/补充 UT 和接口集成测试
-4. python -m pytest -v              # 本地全量测试
-5. git commit -m "fix: <描述> - Closes #N"
-6. git push origin dev/issue-N-<slug>
+4. python -m pytest -v              # 本地全量 UT/集成测试
+5. python scripts/run_pipeline.py --input "input/<文档>.docx"  # 运行完整 pipeline
+6. python -m pytest tests/acceptance/ -v --run-acceptance       # e2e 验收 (Layer A+B+C)
+7. git commit -m "fix: <描述> - Closes #N"
+8. git push origin dev/issue-N-<slug>
 ```
 
 **开发原则：**
@@ -127,6 +139,7 @@ python scripts/agent_poller.py --action get --issue N
 - 关注 IR 一致性：对同一输入的多次运行结果应尽量稳定
 - 关注功能覆盖率：确保 IR 覆盖了输入文档中的功能点
 - **验证是实际功能验证，不是 dry-run**：`pytest` 通过只是门槛，必须用真实输入文档实际运行 pipeline 确认功能生效
+- **PR 前必须通过 e2e 验收 (Layer A+B+C)**：防止修复引入回归。若无法运行完整 pipeline（API 不可用等），至少在 PR 描述中注明
 
 ### 4. 提交 PR
 
@@ -215,6 +228,10 @@ QE-Agent 开 Issue (qe-feedback / bug / ci-failure)
     验证不通过 → 重新分析根因 → 回到开发
 ```
 
+## 关键约束
+
+1. **任何对 git 管理内容的修改必须走完整流程**：开 Issue → 改动 → 提交 PR → CI 通过 → merge → close Issue。无论是自主轮询还是与用户互动触发的改动，一律遵守此规则。绝不直接改文件而不走 Issue 流程。
+
 ## 提交规范
 
 - **格式**：`fix: <简短描述> - Closes #N` 或 `feat: <描述> - Closes #N`
@@ -252,6 +269,7 @@ QE-Agent 开 Issue (qe-feedback / bug / ci-failure)
 | `--action pr-status --pr N` | 查看 PR + CI 状态 | 5. 等 CI |
 | `--action merge-pr --pr N` | Merge PR（自动检查 CI） | 6. Merge |
 | `--action close-issue --issue N --body "..."` | 手动关闭 Issue | 6. 关闭 |
+| `--action blocked-check` | 检查并清理已解除阻塞的 Issue | 4-6. 轮询 |
 | `--action lifecycle --issue N` | 查看 Issue 完整生命周期 | 随时 |
 
 ## 闭环完成检查清单

agents/QE_AGENT.md

@@ -19,10 +19,12 @@ description: QE Agent — 自动化验收测试开发与质量门禁。轮询 Gi
 4. 轮询内容（多轮递进）：
    a. `--action list --labels test-code` — 先捡带 `test-code` 标签的 Issue
    b. `--action list` 无过滤，筛选 title 带 `[test]` 前缀的无标签 Issue
-   c. 都无则分析无标签、无标识的 Issue，判断是否在 QE 域内
-   d. 同时检查 `--labels acceptance-failure`
-5. 有 issue → 走完整闭环处理（Step 2-8）
-6. 无 issue → 简短报告 "main healthy"，等待下次轮询
+   c. `--action blocked-check` — 检查 blocked Issue，若阻塞已解除则自动移除 blocked 标签
+   d. 都无则分析无标签、无标识的 Issue，判断是否在 QE 域内
+   e. 同时检查 `--labels acceptance-failure`
+5. 有 Issue → 走完整闭环处理（Step 2-8）
+   - 关闭 Issue 时自动解除被该 Issue 阻塞的其他 Issue（移除 blocked 标签）
+6. 无 Issue → 简短报告 "main healthy"，等待下次轮询
 7. 同时保持对话开放，随时响应用户指令
 
 这样 QE-Agent 真正做到 **"默认轮询 + 随时互动"**。
@@ -69,6 +71,13 @@ python scripts/agent_poller.py --action list
 **第三轮：分析无标识 Issue**
 如果以上两轮都无结果，分析所有无标签、无 title 标识的 Issue，判断是否属于 QE 域。
 
+**blocked Issue 处理**：
+- 不要直接跳过 `blocked` 标签的 Issue
+- 运行 `--action blocked-check` 检查阻塞状态是否已解除
+- 如果所有阻塞 Issue 已关闭 → blocked 标签自动移除 → 正常处理
+- 如果仍有未解决的阻塞 → 跳过，等待阻塞解除
+- 关闭 Issue 时会自动检查并解除被其阻塞的 Issue（auto-unblock）
+
 同时检查 `acceptance-failure` 标签的 issue：
 ```bash
 python scripts/agent_poller.py --action list --labels acceptance-failure
@@ -294,12 +303,13 @@ QE-Agent 领取 (step 1-2)
 
 ## 关键约束
 
-1. **只修改 `tests/acceptance/`** — 不碰应用代码、不碰 `skills/`、不碰 `scripts/`（除非是修复 agent_poller 或 create_failure_issue）
-2. **不碰 `tests/unit/`、`tests/integration/`** — 那是开发团队维护的
-3. **每次只处理一个 issue** — 不混入多个 issue 的改动
-4. **`Closes #<N>` 必须出现在 commit message 中**
-5. **本地验证必须通过再 push** — 至少 Layer A + Layer B
-6. **如果 Layer C（QE Audit）需要验证但 API 不可用** — 在 issue 下评论注明，标记 `--run-acceptance` 通过后 merge
+1. **任何对 git 管理内容的修改必须走完整流程**：开 Issue → 改动 → 提交 PR → CI 通过 → merge → close Issue。无论是自主轮询还是与用户互动触发的改动，一律遵守此规则。绝不直接改文件而不走 Issue 流程。
+2. **只修改 `tests/acceptance/`** — 不碰应用代码、不碰 `skills/`、不碰 `scripts/`（除非是修复 agent_poller 或 create_failure_issue）
+3. **不碰 `tests/unit/`、`tests/integration/`** — 那是开发团队维护的
+4. **每次只处理一个 issue** — 不混入多个 issue 的改动
+5. **`Closes #<N>` 必须出现在 commit message 中**
+6. **本地验证必须通过再 push** — 至少 Layer A + Layer B
+7. **如果 Layer C（QE Audit）需要验证但 API 不可用** — 在 issue 下评论注明，标记 `--run-acceptance` 通过后 merge
 
 ## Session 收尾
 

scripts/agent_poller.py

@@ -16,6 +16,7 @@ Usage:
 import argparse
 import json
 import os
+import re
 import sys
 import urllib.request
 import urllib.error
@@ -55,6 +56,27 @@ def _req(method, path, data=None):
         sys.exit(1)
 
 
+def _req_safe(method, path, data=None):
+    """Like _req but returns None on HTTPError instead of crashing.
+    Used for probing issue/PR existence where the caller can handle absence.
+    """
+    url = f"{BASE}{path}"
+    payload = json.dumps(data).encode("utf-8") if data else None
+    req = urllib.request.Request(url, data=payload, method=method)
+    req.add_header("Authorization", f"token {GITEA_TOKEN}")
+    req.add_header("Content-Type", "application/json")
+    try:
+        with urllib.request.urlopen(req) as resp:
+            raw = resp.read()
+            if not raw:
+                return {}
+            return json.loads(raw)
+    except urllib.error.HTTPError as e:
+        body = e.read().decode()
+        print(f"API Error {e.code}: {body}", file=sys.stderr)
+        return None
+
+
 # ── Issue operations ─────────────────────────────────────────────────────────
 
 def list_issues(labels: list[str] | None = None):
@@ -73,6 +95,68 @@ def list_issues(labels: list[str] | None = None):
     return issues
 
 
+def _get_blocking_refs(issue_num: int) -> set[int]:
+    """Extract all issue references from an issue body + comments.
+
+    Scans both the issue body and all comments for #N patterns,
+    returning a set of referenced issue numbers.
+    """
+    refs: set[int] = set()
+    # Body
+    issue = _req_safe("GET", f"/issues/{issue_num}")
+    if issue is None:
+        return refs  # API error → return empty set, keep blocked
+    body = issue.get("body", "") or ""
+    refs.update(int(m.group(1)) for m in re.finditer(r'#(\d+)', body))
+    # Comments
+    comments = _req_safe("GET", f"/issues/{issue_num}/comments")
+    if comments:
+        for c in comments:
+            cbody = c.get("body", "") or ""
+            refs.update(int(m.group(1)) for m in re.finditer(r'#(\d+)', cbody))
+    return refs
+
+
+def blocked_check():
+    """Check all blocked issues: if blocking issues are now closed, unblock.
+
+    Scans issue body + comments for blocking references.
+    If no references found or all referenced issues are closed,
+    removes the 'blocked' label.
+    """
+    all_blocked = _req_safe("GET", "/issues?state=open&labels=blocked")
+    if not all_blocked:
+        print("No blocked issues found.")
+        return
+
+    unblocked_count = 0
+    for issue in all_blocked:
+        blocking_nums = _get_blocking_refs(issue["number"])
+
+        all_resolved = True
+        for blk in blocking_nums:
+            blk_issue = _req_safe("GET", f"/issues/{blk}")
+            if blk_issue is None:
+                all_resolved = False  # API error → keep blocked
+                break
+            if blk_issue.get("state") != "closed":
+                all_resolved = False
+                break
+
+        if all_resolved:
+            current_label_names = [l["name"] for l in issue.get("labels", [])]
+            new_label_names = [l for l in current_label_names if l != "blocked"]
+            new_label_ids = _label_names_to_ids(new_label_names)
+            _req("PUT", f"/issues/{issue['number']}/labels", {"labels": new_label_ids})
+            reason = "所有阻塞 Issue 均已关闭" if blocking_nums else "无阻塞引用，移除残留 blocked 标签"
+            print(f"Unblocked #{issue['number']}: {issue['title']}")
+            comment_issue(issue["number"], f"阻塞已解除：{reason}。")
+            unblocked_count += 1
+
+    if unblocked_count == 0:
+        print(f"Checked {len(all_blocked)} blocked issue(s): still blocked.")
+
+
 def get_issue(num):
     i = _req("GET", f"/issues/{num}")
     print(f"## #{i['number']}: {i['title']}")
@@ -91,14 +175,67 @@ def comment_issue(num, body):
 
 
 def close_issue(num, body=None):
-    """Close an issue, optionally with a final comment (signature auto-appended)."""
+    """Close an issue, optionally with a final comment (signature auto-appended).
+
+    After closing, automatically unblocks any issues that were blocked by this one
+    if no other blocking issues remain open.
+    """
     if body:
         comment_issue(num, body)  # comment_issue already appends AGENT_SIG
     i = _req("PATCH", f"/issues/{num}", {"state": "closed"})
     print(f"Issue #{num} closed")
+    _unblock_issues_blocked_by(num)
     return i
 
 
+def reopen_issue(num, body=None):
+    """Reopen a closed issue, optionally with a reason comment."""
+    if body:
+        comment_issue(num, f"## REOPEN\n\n{body}")
+    i = _req("PATCH", f"/issues/{num}", {"state": "open"})
+    print(f"Issue #{num} reopened")
+    return i
+
+
+def _unblock_issues_blocked_by(closed_num):
+    """Check issues blocked by *closed_num* and unblock if all blockers resolved.
+
+    Scans both body and comments for #N references. If *closed_num* appears
+    in any blocked issue and all referenced issues are now closed,
+    removes the 'blocked' label and comments on the unblocked issue.
+    """
+    all_blocked = _req_safe("GET", "/issues?state=open&labels=blocked")
+    if not all_blocked:
+        return
+
+    for issue in all_blocked:
+        blocking_nums = _get_blocking_refs(issue["number"])
+        if closed_num not in blocking_nums:
+            continue
+
+        # Check all referenced issues — are they all closed?
+        all_resolved = True
+        for blk in blocking_nums:
+            if blk == closed_num:
+                continue
+            blk_issue = _req_safe("GET", f"/issues/{blk}")
+            if blk_issue is None:
+                all_resolved = False  # API error → keep blocked
+                break
+            if blk_issue.get("state") != "closed":
+                all_resolved = False
+                break
+
+        if all_resolved:
+            current_label_names = [l["name"] for l in issue.get("labels", [])]
+            new_label_names = [l for l in current_label_names if l != "blocked"]
+            new_label_ids = _label_names_to_ids(new_label_names)
+            _req("PUT", f"/issues/{issue['number']}/labels", {"labels": new_label_ids})
+            print(f"  -> Unblocked #{issue['number']}: all blocking issues resolved")
+            comment_issue(issue["number"],
+                f"阻塞已解除：#{closed_num} 及其他阻塞 Issue 均已关闭。")
+
+
 def create_issue(title, body=None, labels=None):
     """Create a new Gitea issue.
 
@@ -110,7 +247,11 @@ def create_issue(title, body=None, labels=None):
     if body:
         payload["body"] = body + AGENT_SIG
     if labels:
-        payload["labels"] = [l.strip() for l in labels.split(",") if l.strip()]
+        label_names = [l.strip() for l in labels.split(",") if l.strip()]
+        # Gitea 1.22 expects label IDs (int64). Resolve names → IDs.
+        label_ids = _label_names_to_ids(label_names)
+        if label_ids:
+            payload["labels"] = label_ids
     i = _req("POST", "/issues", payload)
     issue_labels = [l["name"] for l in i.get("labels", [])]
     print(f"Issue #{i['number']} created: {i['title']}")
@@ -120,6 +261,22 @@ def create_issue(title, body=None, labels=None):
     return i
 
 
+def _label_names_to_ids(names: list[str]) -> list[int]:
+    """Resolve label names to Gitea label IDs. Returns empty list on failure."""
+    try:
+        all_labels = _req("GET", "/labels")
+        name_to_id = {l["name"]: l["id"] for l in all_labels}
+        ids = []
+        for name in names:
+            if name in name_to_id:
+                ids.append(name_to_id[name])
+            else:
+                print(f"Warning: label '{name}' not found, skipping", file=sys.stderr)
+        return ids
+    except SystemExit:
+        return []
+
+
 # ── PR operations ────────────────────────────────────────────────────────────
 
 def create_pr(issue_num, branch, body=None):
@@ -234,7 +391,9 @@ def main():
     parser = argparse.ArgumentParser(description="Dev agent Gitea helper")
     parser.add_argument("--action", required=True,
                         choices=["list", "get", "comment", "close-issue",
-                                 "create-issue", "create-pr", "pr-status", "merge-pr", "lifecycle"])
+                                 "create-issue", "reopen-issue",
+                                 "create-pr", "pr-status", "merge-pr", "lifecycle",
+                                 "blocked-check"])
     parser.add_argument("--issue", type=int)
     parser.add_argument("--pr", type=int)
     parser.add_argument("--title", help="Issue title (for 'create-issue' action)")
@@ -271,6 +430,11 @@ def main():
             print("--title is required for 'create-issue' action", file=sys.stderr)
             sys.exit(1)
         create_issue(args.title, args.body, args.labels)
+    elif args.action == "reopen-issue":
+        if not args.issue:
+            print("--issue is required for 'reopen-issue' action", file=sys.stderr)
+            sys.exit(1)
+        reopen_issue(args.issue, args.body)
     elif args.action == "create-pr":
         if not args.issue or not args.branch:
             print("--issue and --branch are required for 'create-pr' action", file=sys.stderr)
@@ -286,6 +450,8 @@ def main():
             print("--pr is required for 'merge-pr' action", file=sys.stderr)
             sys.exit(1)
         merge_pr(args.pr)
+    elif args.action == "blocked-check":
+        blocked_check()
     elif args.action == "lifecycle":
         if not args.issue:
             print("--issue is required for 'lifecycle' action", file=sys.stderr)

skills/ir_generation_skill/step1_semantic_index.py

@@ -880,11 +880,19 @@ def run_ensemble_semantic_index(doc: dict) -> dict:
             if v:
                 print(f"    {k}: {len(v)} 个问题")
 
-        # Feedback retry: re-run with coverage feedback (one retry)
+        # Feedback retry: re-run with coverage feedback (up to 2 retries, quality-gated)
+        retry_count = 0
+        while retry_count < 2:
             feedback = _build_coverage_feedback(gaps)
-        if feedback:
-            print(f"\n  覆盖反馈重试 (feedback长度={len(feedback)}字符)...", flush=True)
+            if not feedback:
+                break
+            retry_count += 1
+            print(f"\n  覆盖反馈重试 #{retry_count} (feedback长度={len(feedback)}字符)...", flush=True)
             try:
+                # record pre-retry coverage to gate quality
+                pre_warnings = len(gaps.get("coverage_warnings", []))
+                pre_missing_rows = len(gaps.get("missing_table_rows", []))
+
                 retry_prompt = build_prompt(doc, feedback, all_paths)
                 print(f"  重试 prompt 长度: {len(retry_prompt)} 字符", flush=True)
                 retry_result = call_llm(retry_prompt, max_retries=1, temperature=0.3)
@@ -892,27 +900,39 @@ def run_ensemble_semantic_index(doc: dict) -> dict:
                 n_retry_concepts = len(retry_result.get("concepts", []))
                 print(f"  重试返回: {n_retry_concepts} 概念, {n_retry_units} 功能单元", flush=True)
                 if n_retry_units > 0:
-                    # Check which new sections were covered
                     retry_sections = set()
                     for fu in retry_result.get("function_units", []):
                         for src in fu.get("sources", []):
                             if src.get("section"):
                                 retry_sections.add(src["section"])
                     print(f"  重试新增 sections: {sorted(retry_sections)}", flush=True)
-                    # Merge retry into results and re-validate
+                    # Quality gate: only include retry if it improves coverage
+                    trial_indices = semantic_indices + [retry_result]
+                    trial_merged = ensemble_merge(trial_indices)
+                    trial_passed, trial_gaps = _quick_validate(trial_merged, doc, all_paths)
+                    trial_warnings = len(trial_gaps.get("coverage_warnings", []))
+                    trial_missing = len(trial_gaps.get("missing_table_rows", []))
+                    if trial_warnings < pre_warnings or trial_missing < pre_missing_rows:
                         semantic_indices.append(retry_result)
-                    merged = ensemble_merge(semantic_indices)
-                    merged["ensemble_temperatures"] = list(temperatures) + ["feedback_retry"]
-                    passed, gaps = _quick_validate(merged, doc, all_paths)
+                        merged = trial_merged
+                        passed, gaps = trial_passed, trial_gaps
+                        merged["ensemble_temperatures"] = list(temperatures) + [f"feedback_retry_{retry_count}"]
                         merged["validation_passed"] = passed
                         merged["validation_gaps"] = {
                             k: v for k, v in gaps.items() if v
                         }
-                    print(f"  重试后验证: {'PASS' if passed else 'GAPS FOUND'}", flush=True)
+                        print(f"  重试后验证 (已采纳): {'PASS' if passed else 'GAPS FOUND'} "
+                              f"(warnings {pre_warnings}→{trial_warnings}, "
+                              f"missing_rows {pre_missing_rows}→{trial_missing})", flush=True)
+                    else:
+                        print(f"  重试结果未提升覆盖率，丢弃 "
+                              f"(warnings {pre_warnings}→{trial_warnings}, "
+                              f"missing_rows {pre_missing_rows}→{trial_missing})", flush=True)
             except Exception as e:
                 print(f"  覆盖反馈重试失败: {e}", flush=True)
                 import traceback
                 traceback.print_exc()
+                break
 
     return merged
 

skills/ir_generation_skill/step3_merge_and_audit.py

@@ -169,6 +169,54 @@ def _normalize_rule(rule: dict) -> dict:
             "value": "active"
         }]
 
+    # Ensure table/text sources have a section field (defensive against LLM omission)
+    # Also normalize invalid source types (LLM hallucinations like function_unit_description)
+    sources = rule.get("sources", [])
+    valid_types = {"table", "text", "logic_tree"}
+
+    def _clean_section(val):
+        """Normalize section value: list→first element, ensure string."""
+        if isinstance(val, list):
+            return str(val[0]).strip() if val else ""
+        if isinstance(val, str):
+            return val.strip()
+        return str(val).strip() if val else ""
+
+    # Normalize section fields that might be lists (LLM format instability)
+    for s in sources:
+        sec = s.get("section")
+        if sec is not None:
+            s["section"] = _clean_section(sec)
+
+    # try to infer a default section from the rule path
+    default_section = ""
+    for s in sources:
+        sec = s.get("section", "")
+        if sec and isinstance(sec, str) and sec.strip():
+            default_section = sec.strip()
+            break
+    if not default_section:
+        path = rule.get("path", "")
+        if path:
+            default_section = path.split(" > ")[0] if " > " in path else path
+
+    if sources:
+        for src in sources:
+            stype = src.get("type", "")
+            if stype and stype not in valid_types:
+                src["type"] = "text"
+                stype = "text"
+            if stype in ("table", "text"):
+                if not src.get("section"):
+                    src["section"] = default_section
+    else:
+        # Empty sources list — add a minimal text source (defensive against schema failure)
+        src = {"type": "text", "text_snippet": "inferred from rule context"}
+        if default_section:
+            src["section"] = default_section
+        sources.append(src)
+        rule["sources"] = sources
+
     return rule
 
 

skills/ir_generation_skill/tests/test_step3.py

@@ -465,3 +465,101 @@ class TestNormalizeRule:
         normalized = _normalize_rule(rule)
         assert normalized["trigger"]["operator"] == "AND"
         assert normalized["trigger"]["conditions"][0]["operator"] == ">="
+
+    def test_normalize_source_missing_section_from_sibling(self):
+        """Table/text sources without section get it from sibling sources."""
+        rule = {
+            "trigger": {"conditions": [{"signal": "x", "operator": "==", "value": "1"}]},
+            "sources": [
+                {"type": "table", "section": "3.1.1 系统限制", "row": 1},
+                {"type": "text", "text_snippet": "missing section"},
+            ],
+        }
+        normalized = _normalize_rule(rule)
+        assert normalized["sources"][1]["section"] == "3.1.1 系统限制"
+
+    def test_normalize_source_missing_section_from_path(self):
+        """Table/text sources without section and no sibling fall back to rule path."""
+        rule = {
+            "trigger": {"conditions": [{"signal": "x", "operator": "==", "value": "1"}]},
+            "path": "4.2 关闭流程 > decision_speed > action_disable",
+            "sources": [
+                {"type": "table", "row": 3, "text_snippet": "no section anywhere"},
+            ],
+        }
+        normalized = _normalize_rule(rule)
+        assert normalized["sources"][0]["section"] == "4.2 关闭流程"
+
+    def test_normalize_source_keeps_existing_section(self):
+        """Sources that already have section are not modified."""
+        rule = {
+            "trigger": {"conditions": [{"signal": "x", "operator": "==", "value": "1"}]},
+            "sources": [
+                {"type": "table", "section": "1.0 概述", "row": 1},
+            ],
+        }
+        normalized = _normalize_rule(rule)
+        assert normalized["sources"][0]["section"] == "1.0 概述"
+
+    def test_normalize_source_skips_logic_tree(self):
+        """Logic tree sources are not touched (don't need section)."""
+        rule = {
+            "trigger": {"conditions": [{"signal": "x", "operator": "==", "value": "1"}]},
+            "sources": [
+                {"type": "logic_tree", "image_id": "img1", "node_ids": ["n1"]},
+            ],
+        }
+        normalized = _normalize_rule(rule)
+        assert "section" not in normalized["sources"][0]
+
+    def test_normalize_source_invalid_type(self):
+        """Invalid source types (LLM hallucinations) are normalized to text."""
+        rule = {
+            "trigger": {"conditions": [{"signal": "x", "operator": "==", "value": "1"}]},
+            "sources": [
+                {"type": "function_unit_description", "text_snippet": "desc",
+                 "section": "3.1 功能"},
+                {"type": "unknown_type", "text_snippet": "also invalid"},
+            ],
+        }
+        normalized = _normalize_rule(rule)
+        assert normalized["sources"][0]["type"] == "text"
+        assert normalized["sources"][1]["type"] == "text"
+        assert normalized["sources"][0]["section"] == "3.1 功能"
+
+    def test_normalize_empty_sources(self):
+        """Rules with empty sources get a minimal text source (defensive)."""
+        rule = {
+            "trigger": {"conditions": [{"signal": "x", "operator": "==", "value": "1"}]},
+            "path": "3.1 策略 > decision_speed",
+            "sources": [],
+        }
+        normalized = _normalize_rule(rule)
+        assert len(normalized["sources"]) == 1
+        assert normalized["sources"][0]["type"] == "text"
+        assert normalized["sources"][0]["section"] == "3.1 策略"
+
+    def test_normalize_section_is_list(self):
+        """Section field that is a list (LLM format bug) is normalized to string."""
+        rule = {
+            "trigger": {"conditions": [{"signal": "x", "operator": "==", "value": "1"}]},
+            "sources": [
+                {"type": "table", "section": ["状态", "系统设置"], "row": 1},
+                {"type": "text", "section": ["后台限制"], "text_snippet": "x"},
+            ],
+        }
+        normalized = _normalize_rule(rule)
+        assert normalized["sources"][0]["section"] == "状态"
+        assert normalized["sources"][1]["section"] == "后台限制"
+
+    def test_normalize_section_is_empty_list(self):
+        """Empty list section falls back to rule path."""
+        rule = {
+            "trigger": {"conditions": [{"signal": "x", "operator": "==", "value": "1"}]},
+            "path": "4.2 关闭流程 > decision",
+            "sources": [
+                {"type": "table", "section": [], "row": 1},
+            ],
+        }
+        normalized = _normalize_rule(rule)
+        assert normalized["sources"][0]["section"] == "4.2 关闭流程"

tests/acceptance/conftest.py

@@ -140,9 +140,32 @@ def ir_path(request) -> str:
 
 @pytest.fixture(scope="session")
 def ir_data(ir_path: str) -> dict:
-    """Load the IR JSON data."""
+    """Load the IR JSON data, normalizing each rule for defensive schema fixes."""
     with open(ir_path, "r", encoding="utf-8") as f:
-        return json.load(f)
+        data = json.load(f)
+
+    # Apply normalize to every rule so old IR files benefit from latest fixes
+    # (invalid source types, missing section fields, trigger nulls, etc.)
+    sys.path.insert(0, str(_PROJECT_ROOT / "skills" / "ir_generation_skill"))
+    from step3_merge_and_audit import _normalize_rule
+    rules = data.get("rules", [])
+    if rules:
+        normalized = []
+        for i, r in enumerate(rules):
+            if not isinstance(r, dict):
+                continue  # Skip non-dict entries defensively
+            # Defensive: flatten list-type section fields (LLM produces these sometimes)
+            for src in r.get("sources", []):
+                sec = src.get("section")
+                if isinstance(sec, list):
+                    src["section"] = sec[0] if sec else ""
+            try:
+                normalized.append(_normalize_rule(r))
+            except Exception:
+                normalized.append(r)  # Fallback: use raw rule if normalize crashes
+        data["rules"] = normalized
+
+    return data
 
 
 @pytest.fixture(scope="session")