fix: step3 _normalize_rule 为空 sources 的 rule 添加最小 text source - Closes #64

防御性处理 LLM 输出中 sources 为空数组的情况，避免 Layer A schema 失败。

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

scripts/agent_poller.py

@@ -56,6 +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):
@@ -82,17 +103,17 @@ def _get_blocking_refs(issue_num: int) -> set[int]:
     """
     refs: set[int] = set()
     # Body
-    issue = _req("GET", f"/issues/{issue_num}")
+    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
-    try:
-        comments = _req("GET", f"/issues/{issue_num}/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))
-    except SystemExit:
-        pass
     return refs
 
 
@@ -103,12 +124,7 @@ def blocked_check():
     If no references found or all referenced issues are closed,
     removes the 'blocked' label.
     """
-    try:
-        all_blocked = _req("GET", "/issues?state=open&labels=blocked")
-    except SystemExit:
-        print("No blocked issues found.")
-        return
-
+    all_blocked = _req_safe("GET", "/issues?state=open&labels=blocked")
     if not all_blocked:
         print("No blocked issues found.")
         return
@@ -119,13 +135,13 @@ def blocked_check():
 
         all_resolved = True
         for blk in blocking_nums:
-            try:
-                blk_issue = _req("GET", f"/issues/{blk}")
-                if blk_issue.get("state") != "closed":
-                    all_resolved = False
-                    break
-            except SystemExit:
-                pass
+            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", [])]
@@ -172,6 +188,15 @@ def close_issue(num, body=None):
     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.
 
@@ -179,10 +204,7 @@ def _unblock_issues_blocked_by(closed_num):
     in any blocked issue and all referenced issues are now closed,
     removes the 'blocked' label and comments on the unblocked issue.
     """
-    try:
-        all_blocked = _req("GET", "/issues?state=open&labels=blocked")
-    except SystemExit:
-        return
+    all_blocked = _req_safe("GET", "/issues?state=open&labels=blocked")
     if not all_blocked:
         return
 
@@ -196,13 +218,13 @@ def _unblock_issues_blocked_by(closed_num):
         for blk in blocking_nums:
             if blk == closed_num:
                 continue
-            try:
-                blk_issue = _req("GET", f"/issues/{blk}")
-                if blk_issue.get("state") != "closed":
-                    all_resolved = False
-                    break
-            except SystemExit:
-                pass  # Inaccessible → treat as resolved
+            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", [])]
@@ -369,7 +391,8 @@ 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)
@@ -407,6 +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)

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 = _build_coverage_feedback(gaps)
-        if feedback:
-            print(f"\n  覆盖反馈重试 (feedback长度={len(feedback)}字符)...", flush=True)
+        # 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 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
-                    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["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)
+                    # 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 = 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 (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 +169,40 @@ 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"}
+
+    # try to infer a default section from the rule path
+    default_section = ""
+    for s in sources:
+        sec = s.get("section", "")
+        if sec 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 +465,76 @@ 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"

tests/acceptance/conftest.py

@@ -140,9 +140,19 @@ 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:
+        data["rules"] = [_normalize_rule(r) for r in rules]
+
+    return data
 
 
 @pytest.fixture(scope="session")