Harden evidence trace semantics

2026-07-04 22:36:30 +08:00
parent 246c99b954
commit dc6cd32a67
24 changed files with 1096 additions and 141 deletions
@@ -131,13 +131,15 @@ public class QueryLogsTools {
            output.setMessage(String.format("共有 %d 个可用的日志主题。建议使用默认地域 'ap-guangzhou' 或省略 region 参数", topics.size()));
            
            String response = objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(output);
-            recordInvocation(startTime, "get_available_log_topics", null, null, null, response, true, null, "logs");
+            recordInvocation("get_available_log_topics", startTime, "get_available_log_topics", null, null, null,
+                    response, true, null, "logs", ToolInvocationRecorder.EVIDENCE_STATUS_SUPPORTED);
            return response;
            
        } catch (Exception e) {
            logger.error("获取日志主题列表失败", e);
            String response = "{\"success\":false,\"message\":\"获取日志主题列表失败: " + e.getMessage() + "\"}";
-            recordInvocation(startTime, "get_available_log_topics", null, null, null, response, false, e.getMessage(), "logs");
+            recordInvocation("get_available_log_topics", startTime, "get_available_log_topics", null, null, null,
+                    response, false, e.getMessage(), "logs", ToolInvocationRecorder.EVIDENCE_STATUS_FAILED);
            return response;
        }
    }
@@ -191,8 +193,9 @@ public class QueryLogsTools {
            } else {
                // 真实模式：调用 CLS API（这里预留接口，后续实现）
                String response = buildErrorResponse("CLS 真实查询尚未实现，请启用 mock 模式进行测试");
-                recordInvocation(startTime, safeQuery, region, logTopic, actualLimit, response, false,
-                        "CLS 真实查询尚未实现，请启用 mock 模式进行测试", normalizeTopicDomain(logTopic));
+                recordInvocation("query_logs", startTime, safeQuery, region, logTopic, actualLimit, response, false,
+                        "CLS 真实查询尚未实现，请启用 mock 模式进行测试", normalizeTopicDomain(logTopic),
+                        ToolInvocationRecorder.EVIDENCE_STATUS_FAILED);
                return response;
            }
            
@@ -208,23 +211,26 @@ public class QueryLogsTools {
            
            String jsonResult = objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(output);
            logger.info("日志查询完成: 找到 {} 条日志", logEntries.size());
-            recordInvocation(startTime, safeQuery, region, logTopic, actualLimit, jsonResult,
-                    !logEntries.isEmpty(), logEntries.isEmpty() ? "未找到匹配的日志" : null,
-                    normalizeTopicDomain(logTopic));
+            recordInvocation("query_logs", startTime, safeQuery, region, logTopic, actualLimit, jsonResult,
+                    true, null, normalizeTopicDomain(logTopic),
+                    logEntries.isEmpty()
+                            ? ToolInvocationRecorder.EVIDENCE_STATUS_NO_EVIDENCE
+                            : ToolInvocationRecorder.EVIDENCE_STATUS_SUPPORTED);
            
            return jsonResult;
            
        } catch (Exception e) {
            logger.error("查询日志失败", e);
            String response = buildErrorResponse("查询失败: " + e.getMessage());
-            recordInvocation(startTime, safeQuery, region, logTopic, actualLimit, response, false,
-                    e.getMessage(), normalizeTopicDomain(logTopic));
+            recordInvocation("query_logs", startTime, safeQuery, region, logTopic, actualLimit, response, false,
+                    e.getMessage(), normalizeTopicDomain(logTopic), ToolInvocationRecorder.EVIDENCE_STATUS_FAILED);
            return response;
        }
    }

-    private void recordInvocation(long startTime, String query, String region, String logTopic, Integer limit,
-                                  String output, boolean success, String errorMessage, String topicDomain) {
+    private void recordInvocation(String toolName, long startTime, String query, String region, String logTopic, Integer limit,
+                                  String output, boolean success, String errorMessage, String topicDomain,
+                                  String evidenceStatus) {
        Map<String, Object> input = new HashMap<>();
        input.put("query", query == null || query.isBlank() ? "DEFAULT_QUERY" : query);
        if (region != null) {
@@ -239,13 +245,15 @@ public class QueryLogsTools {
        input.put("mock_enabled", mockEnabled);

        toolInvocationRecorder.recordEvidenceTool(
-                "query_logs",
+                toolName,
                input,
                output,
                success,
                startTime,
                errorMessage,
-                topicDomain
+                topicDomain,
+                evidenceStatus,
+                Map.of("log_topic", logTopic == null ? "" : logTopic)
        );
    }

@@ -81,7 +81,7 @@ public class QueryMetricsTools {
                
                if (!"success".equals(result.getStatus())) {
                    String response = buildErrorResponse("Prometheus API 返回非成功状态: " + result.getStatus(), result.getError());
-                    recordInvocation(startTime, response, false, result.getError());
+                    recordInvocation(startTime, response, false, result.getError(), ToolInvocationRecorder.EVIDENCE_STATUS_FAILED);
                    return response;
                }
                
@@ -119,19 +119,22 @@ public class QueryMetricsTools {
            
            String jsonResult = objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(output);
            logger.info("Prometheus 告警查询完成: 找到 {} 个告警", simplifiedAlerts.size());
-            recordInvocation(startTime, jsonResult, true, null);
+            recordInvocation(startTime, jsonResult, true, null,
+                    simplifiedAlerts.isEmpty()
+                            ? ToolInvocationRecorder.EVIDENCE_STATUS_NO_EVIDENCE
+                            : ToolInvocationRecorder.EVIDENCE_STATUS_SUPPORTED);
            
            return jsonResult;
            
        } catch (Exception e) {
            logger.error("查询 Prometheus 告警失败", e);
            String response = buildErrorResponse("查询失败", e.getMessage());
-            recordInvocation(startTime, response, false, e.getMessage());
+            recordInvocation(startTime, response, false, e.getMessage(), ToolInvocationRecorder.EVIDENCE_STATUS_FAILED);
            return response;
        }
    }

-    private void recordInvocation(long startTime, String output, boolean success, String errorMessage) {
+    private void recordInvocation(long startTime, String output, boolean success, String errorMessage, String evidenceStatus) {
        toolInvocationRecorder.recordEvidenceTool(
                "query_metrics",
                Map.of("query", "active_prometheus_alerts", "mock_enabled", mockEnabled),
@@ -139,7 +142,9 @@ public class QueryMetricsTools {
                success,
                startTime,
                errorMessage,
-                "prometheus_alerts"
+                "prometheus_alerts",
+                evidenceStatus,
+                Map.of("metric_family", "prometheus_alerts")
        );
    }
    
@@ -3,11 +3,16 @@ package com.superbiz.agent.service;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.superbiz.agent.domain.entity.ToolInvocation;
+import com.superbiz.agent.dto.LookupResult;
 import com.superbiz.agent.repository.ToolInvocationRepository;
+import com.superbiz.agent.dto.KnowledgeEntry;
+import com.superbiz.agent.service.VectorSearchService;
 import com.superbiz.agent.util.SessionContextHolder;
+import lombok.Builder;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;

+import java.util.ArrayList;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
@@ -21,6 +26,10 @@ import java.util.UUID;
 public class ToolInvocationRecorder {

    private static final int OUTPUT_PREVIEW_LIMIT = 500;
+    public static final String EVIDENCE_STATUS_SUPPORTED = "supported";
+    public static final String EVIDENCE_STATUS_NO_EVIDENCE = "no_evidence";
+    public static final String EVIDENCE_STATUS_DEDUPED = "deduped";
+    public static final String EVIDENCE_STATUS_FAILED = "failed";

    private final ToolInvocationRepository toolInvocationRepository;
    private final ObjectMapper objectMapper;
@@ -52,12 +61,29 @@ public class ToolInvocationRecorder {
                                   long startTimeMillis,
                                   String errorMessage,
                                   String topicDomain) {
+        recordEvidenceTool(toolName, inputParams, output, success, startTimeMillis, errorMessage, topicDomain,
+                success ? EVIDENCE_STATUS_SUPPORTED : EVIDENCE_STATUS_FAILED, Map.of());
+    }
+
+    public void recordEvidenceTool(String toolName,
+                                   Map<String, Object> inputParams,
+                                   String output,
+                                   boolean success,
+                                   long startTimeMillis,
+                                   String errorMessage,
+                                   String topicDomain,
+                                   String evidenceStatus,
+                                   Map<String, Object> extraDetails) {
        String outputPreview = preview(output);
        Map<String, Object> details = new LinkedHashMap<>();
        details.put("trace_id", UUID.randomUUID().toString());
        if (topicDomain != null && !topicDomain.isBlank()) {
            details.put("retrieved_domains", List.of(topicDomain));
        }
+        details.put("evidence_status", normalizeEvidenceStatus(success, evidenceStatus));
+        if (extraDetails != null && !extraDetails.isEmpty()) {
+            details.putAll(extraDetails);
+        }

        ToolInvocation invocation = ToolInvocation.builder()
                .toolName(toolName)
@@ -73,6 +99,67 @@ public class ToolInvocationRecorder {
        save(invocation);
    }

+    public void recordLookupKnowledge(LookupKnowledgeRecord record) {
+        Map<String, Object> details = new LinkedHashMap<>();
+        details.put("trace_id", UUID.randomUUID().toString());
+        if (record.l0MatchCount() != null) {
+            details.put("l0_match_count", record.l0MatchCount());
+        }
+        if (record.l0Titles() != null && !record.l0Titles().isEmpty()) {
+            details.put("l0_titles", record.l0Titles());
+        }
+        if (record.l1TopScore() != null) {
+            details.put("l1_top_score", record.l1TopScore());
+        }
+        if (record.l1TopSimilarity() != null) {
+            details.put("l1_top_similarity", record.l1TopSimilarity());
+        }
+        if (record.l1MatchCount() != null) {
+            details.put("l1_match_count", record.l1MatchCount());
+        }
+        if (record.l1Scores() != null && !record.l1Scores().isEmpty()) {
+            details.put("l1_scores", record.l1Scores());
+        }
+        if (record.relevanceLevel() != null) {
+            details.put("relevance_level", record.relevanceLevel());
+        }
+        if (record.completenessHint() != null) {
+            details.put("completeness_hint", record.completenessHint());
+        }
+        if (record.domain() != null && !record.domain().isBlank()) {
+            details.put("retrieved_domains", List.of(record.domain()));
+        }
+        if (record.dedupReason() != null) {
+            details.put("dedup_reason", record.dedupReason());
+        }
+        details.put("evidence_status", normalizeEvidenceStatus(record.success(), record.evidenceStatus()));
+
+        ToolInvocation invocation = ToolInvocation.builder()
+                .toolName("lookup_knowledge")
+                .inputParams(toJson(Map.of("query", record.query())))
+                .outputPreview(preview(record.outputPreview()))
+                .outputLength(record.outputLength())
+                .retrievalLayer(record.retrievalLayer())
+                .l0MatchCount(record.l0MatchCount())
+                .l1MatchCount(record.l1MatchCount())
+                .isTruncated(Boolean.TRUE.equals(record.truncated()))
+                .retrievalDetails(toJson(details))
+                .relevanceLevel(record.relevanceLevel())
+                .dedupReason(record.dedupReason())
+                .durationMs(record.durationMs())
+                .success(record.success())
+                .errorMessage(record.errorMessage())
+                .build();
+        save(invocation);
+    }
+
+    private String normalizeEvidenceStatus(boolean success, String evidenceStatus) {
+        if (evidenceStatus != null && !evidenceStatus.isBlank()) {
+            return evidenceStatus;
+        }
+        return success ? EVIDENCE_STATUS_SUPPORTED : EVIDENCE_STATUS_FAILED;
+    }
+
    private String preview(String output) {
        if (output == null) {
            return null;
@@ -90,4 +177,105 @@ public class ToolInvocationRecorder {
            return "{}";
        }
    }
+
+    @Builder
+    public record LookupKnowledgeRecord(
+            String query,
+            String outputPreview,
+            Integer outputLength,
+            String retrievalLayer,
+            Integer l0MatchCount,
+            Integer l1MatchCount,
+            Boolean truncated,
+            String relevanceLevel,
+            String completenessHint,
+            String domain,
+            String dedupReason,
+            Integer durationMs,
+            boolean success,
+            String evidenceStatus,
+            String errorMessage,
+            List<String> l0Titles,
+            Double l1TopScore,
+            Double l1TopSimilarity,
+            List<Double> l1Scores
+    ) {
+        public static LookupKnowledgeRecord from(String query,
+                                                 List<KnowledgeEntry> l0Matches,
+                                                 List<VectorSearchService.SearchResult> l1Results,
+                                                 boolean highConfidence,
+                                                 LookupResult result,
+                                                 String domain,
+                                                 String dedupReason,
+                                                 int durationMs,
+                                                 double l1TopSimilarity) {
+            boolean hasL0 = l0Matches != null && !l0Matches.isEmpty();
+            boolean hasL1 = l1Results != null && !l1Results.isEmpty();
+            String layer;
+            if (hasL0 && !highConfidence) {
+                layer = "L0+L1";
+            } else if (hasL0) {
+                layer = "L0";
+            } else if (hasL1) {
+                layer = "L1";
+            } else {
+                layer = null;
+            }
+
+            String outputPreview = null;
+            int outputLength = 0;
+            boolean truncated = false;
+            if (result != null && result.getPrimary() != null && result.getPrimary().getContent() != null) {
+                outputPreview = result.getPrimary().getContent();
+                outputLength = outputPreview.length();
+                truncated = outputLength > OUTPUT_PREVIEW_LIMIT;
+            } else if (hasL1 && l1Results.get(0).getContent() != null) {
+                outputPreview = l1Results.get(0).getContent();
+                outputLength = outputPreview.length();
+                truncated = outputLength > OUTPUT_PREVIEW_LIMIT;
+            }
+
+            String evidenceStatus = EVIDENCE_STATUS_SUPPORTED;
+            if (dedupReason != null) {
+                evidenceStatus = EVIDENCE_STATUS_DEDUPED;
+            } else if (result == null || !result.isFound()) {
+                evidenceStatus = EVIDENCE_STATUS_NO_EVIDENCE;
+            }
+
+            List<String> l0Titles = new ArrayList<>();
+            if (hasL0) {
+                for (int i = 0; i < Math.min(3, l0Matches.size()); i++) {
+                    l0Titles.add(l0Matches.get(i).getTitle());
+                }
+            }
+
+            List<Double> l1Scores = new ArrayList<>();
+            if (hasL1) {
+                for (int i = 0; i < Math.min(3, l1Results.size()); i++) {
+                    l1Scores.add((double) l1Results.get(i).getScore());
+                }
+            }
+
+            return LookupKnowledgeRecord.builder()
+                    .query(query)
+                    .outputPreview(outputPreview)
+                    .outputLength(outputLength)
+                    .retrievalLayer(layer)
+                    .l0MatchCount(hasL0 ? l0Matches.size() : null)
+                    .l1MatchCount(hasL1 ? l1Results.size() : null)
+                    .truncated(truncated)
+                    .relevanceLevel(result != null ? result.getRelevanceLevel() : null)
+                    .completenessHint(result != null ? result.getCompletenessHint() : null)
+                    .domain(domain)
+                    .dedupReason(dedupReason)
+                    .durationMs(durationMs)
+                    .success(true)
+                    .evidenceStatus(evidenceStatus)
+                    .l0Titles(l0Titles)
+                    .l1TopScore(hasL1 ? (double) l1Results.get(0).getScore() : null)
+                    .l1TopSimilarity(hasL1 ? l1TopSimilarity : null)
+                    .l1Scores(l1Scores)
+                    .build();
+        }
+    }
 }
@@ -107,6 +107,7 @@ public class ToolTraceSummaryService {
    }

    private String extractOutputSummary(ToolInvocation invocation, String topicDomain) {
+        String evidenceStatus = extractEvidenceStatus(invocation);
        if (!Boolean.TRUE.equals(invocation.getSuccess())) {
            if (invocation.getErrorMessage() != null && !invocation.getErrorMessage().isBlank()) {
                return "call failed: " + truncate(invocation.getErrorMessage(), 120);
@@ -114,6 +115,17 @@ public class ToolTraceSummaryService {
            return "no usable evidence returned";
        }

+        if (ToolInvocationRecorder.EVIDENCE_STATUS_DEDUPED.equals(evidenceStatus)) {
+            return "retrieval skipped because the same document was already used in this session";
+        }
+
+        if (ToolInvocationRecorder.EVIDENCE_STATUS_NO_EVIDENCE.equals(evidenceStatus)) {
+            if (invocation.getOutputPreview() != null && !invocation.getOutputPreview().isBlank()) {
+                return "completed without usable evidence: " + truncate(invocation.getOutputPreview(), 120);
+            }
+            return "completed without usable evidence";
+        }
+
        if ("lookup_knowledge".equals(invocation.getToolName())) {
            String relevance = invocation.getRelevanceLevel() != null ? invocation.getRelevanceLevel() : "UNKNOWN";
            String preview = invocation.getOutputPreview() != null && !invocation.getOutputPreview().isBlank()
@@ -129,18 +141,46 @@ public class ToolTraceSummaryService {
    }

    private String determineEvidenceLevel(ToolInvocation invocation) {
+        String evidenceStatus = extractEvidenceStatus(invocation);
        if (!Boolean.TRUE.equals(invocation.getSuccess())) {
            return "none";
        }
+        if (ToolInvocationRecorder.EVIDENCE_STATUS_NO_EVIDENCE.equals(evidenceStatus)
+                || ToolInvocationRecorder.EVIDENCE_STATUS_DEDUPED.equals(evidenceStatus)) {
+            return "none";
+        }
        if ("PRECISE".equals(invocation.getRelevanceLevel()) || "HIGHLY_RELEVANT".equals(invocation.getRelevanceLevel())) {
            return "direct";
        }
        if ("REFERENCE".equals(invocation.getRelevanceLevel())) {
            return "indirect";
        }
+        if (EVIDENCE_TOOLS.contains(invocation.getToolName())) {
+            return "direct";
+        }
        return "none";
    }

+    private String extractEvidenceStatus(ToolInvocation invocation) {
+        if (invocation.getRetrievalDetails() == null || invocation.getRetrievalDetails().isBlank()) {
+            return Boolean.TRUE.equals(invocation.getSuccess())
+                    ? ToolInvocationRecorder.EVIDENCE_STATUS_SUPPORTED
+                    : ToolInvocationRecorder.EVIDENCE_STATUS_FAILED;
+        }
+        try {
+            Map<String, Object> details = objectMapper.readValue(invocation.getRetrievalDetails(), MAP_TYPE);
+            Object evidenceStatus = details.get("evidence_status");
+            if (evidenceStatus != null) {
+                return String.valueOf(evidenceStatus);
+            }
+        } catch (Exception e) {
+            log.debug("Failed to parse evidence_status", e);
+        }
+        return Boolean.TRUE.equals(invocation.getSuccess())
+                ? ToolInvocationRecorder.EVIDENCE_STATUS_SUPPORTED
+                : ToolInvocationRecorder.EVIDENCE_STATUS_FAILED;
+    }
+
    private List<String> extractStringList(Object value) {
        if (!(value instanceof List<?> list) || list.isEmpty()) {
            return List.of();
@@ -224,13 +264,22 @@ public class ToolTraceSummaryService {
                inputSummary = extractInputSummary(invocation);
            }

-            boolean invocationSuccess = Boolean.TRUE.equals(invocation.getSuccess());
-            if (!invocationSuccess) {
+            String evidenceStatus = extractEvidenceStatus(invocation);
+            if (!Boolean.TRUE.equals(invocation.getSuccess())) {
                failedCount++;
+                if (outputSummary == null || outputSummary.isBlank()) {
+                    outputSummary = extractOutputSummary(invocation, topicDomain);
+                }
                return;
            }
-            if (invocation.getDedupReason() != null) {
+
+            if (ToolInvocationRecorder.EVIDENCE_STATUS_NO_EVIDENCE.equals(evidenceStatus)
+                    || ToolInvocationRecorder.EVIDENCE_STATUS_DEDUPED.equals(evidenceStatus)) {
                noHitCount++;
+                if (outputSummary == null || outputSummary.isBlank()) {
+                    outputSummary = extractOutputSummary(invocation, topicDomain);
+                }
+                return;
            }

            String invocationEvidenceLevel = determineEvidenceLevel(invocation);
@@ -14,6 +14,7 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;

 import java.util.List;
+import java.util.Locale;
 import java.util.stream.Collectors;

 /**
@@ -309,131 +310,30 @@ public class LookupKnowledgeTool {
            String sessionId = SessionContextHolder.getSessionId();
            if (sessionId == null) return;

-            boolean hasL0 = l0Matches != null && !l0Matches.isEmpty();
-            boolean hasL1 = l1Results != null && !l1Results.isEmpty();
            long duration = System.currentTimeMillis() - startTime;
+            double l1TopSimilarity = (l1Results != null && !l1Results.isEmpty())
+                    ? normalizeL2(l1Results.get(0).getScore())
+                    : -1;

-            String layer;
-            String outputPreview = null;
-            int outputLength = 0;
-            int l0Count = 0;
-            int l1Count = 0;
-            boolean truncated = false;
-
-            if (hasL0 && !highConfidence) {
-                layer = "L0+L1";
-                l0Count = l0Matches.size();
-                l1Count = l1Results.size();
-            } else if (hasL0) {
-                layer = "L0";
-                l0Count = l0Matches.size();
-            } else if (hasL1) {
-                layer = "L1";
-                l1Count = l1Results.size();
-            } else {
-                layer = null;
-            }
-
-            // output_preview
-            if (result != null && result.getPrimary() != null && result.getPrimary().getContent() != null) {
-                String content = result.getPrimary().getContent();
-                outputLength = content.length();
-                if (content.length() > 500) {
-                    outputPreview = content.substring(0, 500) + "...";
-                    truncated = true;
-                } else {
-                    outputPreview = content;
-                }
-            } else if (l1Results != null && !l1Results.isEmpty() && l1Results.get(0).getContent() != null) {
-                String content = l1Results.get(0).getContent();
-                outputLength = content.length();
-                if (content.length() > 500) {
-                    outputPreview = content.substring(0, 500) + "...";
-                    truncated = true;
-                } else {
-                    outputPreview = content;
-                }
-            }
-
-            // L1 top score + similarity
-            float l1TopScore = (hasL1) ? l1Results.get(0).getScore() : -1;
-            double l1TopSimilarity = (hasL1) ? normalizeL2(l1TopScore) : -1;
-
-            // 构建检索明细 JSON（扩展版）
-            StringBuilder details = new StringBuilder("{");
-            if (hasL0) {
-                details.append("\"l0_match_count\":").append(l0Count).append(",");
-                details.append("\"l0_titles\":[");
-                for (int i = 0; i < Math.min(3, l0Matches.size()); i++) {
-                    if (i > 0) details.append(",");
-                    details.append("\"").append(escapeJson(l0Matches.get(i).getTitle())).append("\"");
-                }
-                details.append("],");
-            }
-            if (hasL1) {
-                details.append("\"l1_top_score\":").append(String.format("%.4f", l1TopScore)).append(",");
-                details.append("\"l1_top_similarity\":").append(String.format("%.4f", l1TopSimilarity)).append(",");
-                details.append("\"l1_match_count\":").append(l1Count).append(",");
-                details.append("\"l1_scores\":[");
-                for (int i = 0; i < Math.min(3, l1Results.size()); i++) {
-                    if (i > 0) details.append(",");
-                    details.append(String.format("%.4f", l1Results.get(i).getScore()));
-                }
-                details.append("],");
-            }
-            // 归一化信息
-            if (result != null && result.getRelevanceLevel() != null) {
-                details.append("\"relevance_level\":\"").append(result.getRelevanceLevel()).append("\",");
-                details.append("\"completeness_hint\":\"").append(escapeJson(result.getCompletenessHint())).append("\",");
-            }
-            // 域信息
-            if (domain != null) {
-                details.append("\"retrieved_domains\":[\"").append(escapeJson(domain)).append("\"],");
-            }
-            // 去重原因
-            if (dedupReason != null) {
-                details.append("\"dedup_reason\":\"").append(dedupReason).append("\",");
-            }
-            // 移除末尾逗号
-            if (details.charAt(details.length() - 1) == ',') {
-                details.setLength(details.length() - 1);
-            }
-            details.append("}");
-
-            ToolInvocation inv = ToolInvocation.builder()
-                    .sessionId(sessionId)
-                    .toolName("lookup_knowledge")
-                    .inputParams("{\"query\":\"" + escapeJson(query) + "\"}")
-                    .outputPreview(outputPreview)
-                    .outputLength(outputLength)
-                    .retrievalLayer(layer)
-                    .l0MatchCount(hasL0 ? l0Count : null)
-                    .l1MatchCount(hasL1 ? l1Count : null)
-                    .isTruncated(truncated)
-                    .retrievalDetails(details.toString())
-                    .relevanceLevel(result != null ? result.getRelevanceLevel() : null)
-                    .dedupReason(dedupReason)
-                    .durationMs((int) duration)
-                    .success(true)
-                    .build();
-
-            toolInvocationRecorder.save(inv);
+            ToolInvocationRecorder.LookupKnowledgeRecord record = ToolInvocationRecorder.LookupKnowledgeRecord.from(
+                    query,
+                    l0Matches,
+                    l1Results,
+                    highConfidence,
+                    result,
+                    domain,
+                    dedupReason,
+                    (int) duration,
+                    l1TopSimilarity
+            );
+            toolInvocationRecorder.recordLookupKnowledge(record);
            log.debug("tool_invocation 已保存: sessionId={}, layer={}, relevanceLevel={}, duration={}ms",
-                sessionId, layer, result != null ? result.getRelevanceLevel() : null, duration);
+                    sessionId, record.retrievalLayer(), record.relevanceLevel(), duration);
        } catch (Exception e) {
            log.error("保存 tool_invocation 失败", e);
        }
    }

-    private String escapeJson(String s) {
-        if (s == null) return "";
-        return s.replace("\\", "\\\\")
-                .replace("\"", "\\\"")
-                .replace("\n", "\\n")
-                .replace("\r", "\\r")
-                .replace("\t", "\\t");
-    }
-
    // ==================== 结果组装 ====================

    private LookupResult buildResult(
@@ -24,6 +24,7 @@ import java.util.Optional;
 import java.util.concurrent.atomic.AtomicInteger;

 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
@@ -85,6 +86,73 @@ class ChatServiceSequentialAgentTest {
        assertEquals(List.of("chat_planner", "chat_executor", "chat_verifier"), chatModel.agentCalls);
    }

+    @Test
+    void executeChatComplexFallsBackToLowConfidenceWhenVerifierOutputMissing() throws Exception {
+        ChatService chatService = createChatService();
+        ScriptedChatModel chatModel = new ScriptedChatModel("", "");
+
+        ChatService.ChatResult result = chatService.executeChatComplex(
+                chatModel,
+                new ToolCallback[0],
+                "请分析订单支付超时的原因，并给出修复建议",
+                List.of(),
+                "sequential-missing-verifier-session"
+        );
+
+        assertTrue(result.answer().startsWith("以下结论基于当前已获取证据"));
+        assertEquals(List.of("chat_planner", "chat_executor", "chat_verifier", "chat_verifier"), chatModel.agentCalls);
+    }
+
+    @Test
+    void executeChatComplexFallsBackToLowConfidenceWhenVerifierJsonInvalid() throws Exception {
+        ChatService chatService = createChatService();
+        ScriptedChatModel chatModel = new ScriptedChatModel("not-json");
+
+        ChatService.ChatResult result = chatService.executeChatComplex(
+                chatModel,
+                new ToolCallback[0],
+                "请分析订单支付超时的原因，并给出修复建议",
+                List.of(),
+                "sequential-invalid-verifier-session"
+        );
+
+        assertTrue(result.answer().startsWith("以下结论基于当前已获取证据"));
+        assertEquals(List.of("chat_planner", "chat_executor", "chat_verifier"), chatModel.agentCalls);
+    }
+
+    @Test
+    void executeChatComplexRejectOutputDoesNotLeakExecutorAnswer() throws Exception {
+        ChatService chatService = createChatService();
+        ScriptedChatModel chatModel = new ScriptedChatModel("""
+                {
+                  "verdict": "REJECT",
+                  "groundedness_score": 0.0,
+                  "critical_fact_count": 1,
+                  "facts_checked": [
+                    {
+                      "fact": "payment timeout root cause",
+                      "is_critical": true,
+                      "verification": "contradicted",
+                      "detail": "scripted contradiction",
+                      "evidence_refs": []
+                    }
+                  ],
+                  "rationale": "scripted reject"
+                }
+                """);
+
+        ChatService.ChatResult result = chatService.executeChatComplex(
+                chatModel,
+                new ToolCallback[0],
+                "请分析订单支付超时的原因，并给出修复建议",
+                List.of(),
+                "sequential-reject-session"
+        );
+
+        assertTrue(result.answer().startsWith("当前无法基于已获取证据生成可靠结论"));
+        assertFalse(result.answer().contains("EXECUTOR_FINAL_ANSWER"));
+    }
+
    @Test
    void executeChatComplexRunsPlannerExecutorVerifierInFixedOrder() throws Exception {
        ChatService chatService = createChatService();
@@ -174,7 +242,8 @@ class ChatServiceSequentialAgentTest {
        private final java.util.ArrayList<String> agentCalls = new java.util.ArrayList<>();
        private String promptText = "";
        private boolean sawVerifierPrompt;
-        private final String verifierOutput;
+        private final java.util.List<String> verifierOutputs;
+        private int verifierOutputIndex;

        private ScriptedChatModel() {
            this("""
@@ -197,7 +266,11 @@ class ChatServiceSequentialAgentTest {
        }

        private ScriptedChatModel(String verifierOutput) {
-            this.verifierOutput = verifierOutput;
+            this.verifierOutputs = java.util.List.of(verifierOutput);
+        }
+
+        private ScriptedChatModel(String... verifierOutputs) {
+            this.verifierOutputs = java.util.List.of(verifierOutputs);
        }

        @Override
@@ -213,7 +286,9 @@ class ChatServiceSequentialAgentTest {
            } else if (promptText.contains("VERIFIER_TEST_PROMPT")) {
                agentCalls.add("chat_verifier");
                sawVerifierPrompt = true;
-                text = verifierOutput;
+                int index = Math.min(verifierOutputIndex, verifierOutputs.size() - 1);
+                text = verifierOutputs.get(index);
+                verifierOutputIndex++;
            } else {
                text = "UNEXPECTED_PROMPT";
            }
@@ -0,0 +1,96 @@
+package com.superbiz.agent.service;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.superbiz.agent.domain.entity.ToolInvocation;
+import com.superbiz.agent.repository.ToolInvocationRepository;
+import com.superbiz.agent.util.SessionContextHolder;
+import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
+
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+class ToolInvocationRecorderTest {
+
+    @Test
+    void recordEvidenceToolPreservesNoEvidenceSemantics() {
+        ToolInvocationRepository repository = mock(ToolInvocationRepository.class);
+        when(repository.save(any(ToolInvocation.class))).thenAnswer(invocation -> invocation.getArgument(0));
+        ToolInvocationRecorder recorder = new ToolInvocationRecorder(repository, new ObjectMapper());
+        SessionContextHolder.setSessionId("recorder-test-session");
+
+        try {
+            recorder.recordEvidenceTool(
+                    "query_logs",
+                    Map.of("query", "timeout"),
+                    "{\"success\":false,\"message\":\"未找到匹配的日志\"}",
+                    true,
+                    System.currentTimeMillis() - 10,
+                    null,
+                    "application-logs",
+                    ToolInvocationRecorder.EVIDENCE_STATUS_NO_EVIDENCE,
+                    Map.of("log_topic", "application-logs")
+            );
+        } finally {
+            SessionContextHolder.clear();
+        }
+
+        ArgumentCaptor<ToolInvocation> captor = ArgumentCaptor.forClass(ToolInvocation.class);
+        verify(repository).save(captor.capture());
+        ToolInvocation saved = captor.getValue();
+
+        assertEquals("query_logs", saved.getToolName());
+        assertEquals(Boolean.TRUE, saved.getSuccess());
+        assertTrue(saved.getRetrievalDetails().contains("\"evidence_status\":\"no_evidence\""));
+        assertTrue(saved.getRetrievalDetails().contains("\"retrieved_domains\":[\"application-logs\"]"));
+    }
+
+    @Test
+    void recordLookupKnowledgePreservesRetrievalSpecificFields() {
+        ToolInvocationRepository repository = mock(ToolInvocationRepository.class);
+        when(repository.save(any(ToolInvocation.class))).thenAnswer(invocation -> invocation.getArgument(0));
+        ToolInvocationRecorder recorder = new ToolInvocationRecorder(repository, new ObjectMapper());
+        SessionContextHolder.setSessionId("lookup-recorder-session");
+
+        ToolInvocationRecorder.LookupKnowledgeRecord record = ToolInvocationRecorder.LookupKnowledgeRecord.builder()
+                .query("ERR_TIMEOUT")
+                .outputPreview("matched payment doc")
+                .outputLength(18)
+                .retrievalLayer("L0")
+                .l0MatchCount(1)
+                .l1MatchCount(null)
+                .truncated(false)
+                .relevanceLevel("PRECISE")
+                .completenessHint("already precise")
+                .domain("payment")
+                .dedupReason("doc_retrieved")
+                .durationMs(42)
+                .success(true)
+                .evidenceStatus(ToolInvocationRecorder.EVIDENCE_STATUS_DEDUPED)
+                .l0Titles(List.of("payment/errors.md"))
+                .build();
+
+        try {
+            recorder.recordLookupKnowledge(record);
+        } finally {
+            SessionContextHolder.clear();
+        }
+
+        ArgumentCaptor<ToolInvocation> captor = ArgumentCaptor.forClass(ToolInvocation.class);
+        verify(repository).save(captor.capture());
+        ToolInvocation saved = captor.getValue();
+
+        assertEquals("lookup_knowledge", saved.getToolName());
+        assertEquals("PRECISE", saved.getRelevanceLevel());
+        assertEquals("doc_retrieved", saved.getDedupReason());
+        assertTrue(saved.getRetrievalDetails().contains("\"evidence_status\":\"deduped\""));
+        assertTrue(saved.getRetrievalDetails().contains("\"retrieved_domains\":[\"payment\"]"));
+    }
+}
@@ -0,0 +1,75 @@
+package com.superbiz.agent.service;
+
+import com.superbiz.agent.domain.entity.ToolInvocation;
+import com.superbiz.agent.repository.ToolInvocationRepository;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+class ToolTraceSummaryServiceTest {
+
+    @Test
+    void buildVerifierTraceSummaryTreatsNoEvidenceAsGapWithoutLosingSuccessfulEvidence() {
+        ToolInvocationRepository repository = mock(ToolInvocationRepository.class);
+        when(repository.findBySessionIdOrderByIdAsc("session-1")).thenReturn(List.of(
+                ToolInvocation.builder()
+                        .id(1L)
+                        .sessionId("session-1")
+                        .toolName("query_logs")
+                        .inputParams("{\"query\":\"timeout\"}")
+                        .outputPreview("payment timeout stack trace")
+                        .retrievalDetails("{\"retrieved_domains\":[\"application-logs\"],\"evidence_status\":\"supported\"}")
+                        .success(true)
+                        .build(),
+                ToolInvocation.builder()
+                        .id(2L)
+                        .sessionId("session-1")
+                        .toolName("query_logs")
+                        .inputParams("{\"query\":\"timeout\"}")
+                        .outputPreview("{\"success\":false,\"message\":\"未找到匹配的日志\"}")
+                        .retrievalDetails("{\"retrieved_domains\":[\"application-logs\"],\"evidence_status\":\"no_evidence\"}")
+                        .success(true)
+                        .build(),
+                ToolInvocation.builder()
+                        .id(3L)
+                        .sessionId("session-1")
+                        .toolName("query_metrics")
+                        .inputParams("{\"query\":\"active_prometheus_alerts\"}")
+                        .errorMessage("prometheus timeout")
+                        .retrievalDetails("{\"retrieved_domains\":[\"prometheus_alerts\"],\"evidence_status\":\"failed\"}")
+                        .success(false)
+                        .build()
+        ));
+
+        ToolTraceSummaryService service = new ToolTraceSummaryService(repository);
+
+        List<Map<String, Object>> summaries = service.buildVerifierTraceSummary("session-1", "application-logs point to timeout");
+
+        assertEquals(2, summaries.size());
+
+        Map<String, Object> logsSummary = summaries.stream()
+                .filter(item -> "query_logs".equals(item.get("tool_name")))
+                .findFirst()
+                .orElseThrow();
+        assertEquals(Boolean.TRUE, logsSummary.get("success"));
+        assertEquals("direct", logsSummary.get("evidence_level"));
+        assertEquals(2, logsSummary.get("invocation_count"));
+        assertEquals(1, logsSummary.get("no_hit_invocation_count"));
+
+        Map<String, Object> metricsSummary = summaries.stream()
+                .filter(item -> "query_metrics".equals(item.get("tool_name")))
+                .findFirst()
+                .orElseThrow();
+        assertEquals(Boolean.FALSE, metricsSummary.get("success"));
+        assertEquals("none", metricsSummary.get("evidence_level"));
+        assertEquals(1, metricsSummary.get("failed_invocation_count"));
+        assertTrue(String.valueOf(metricsSummary.get("output_summary")).contains("call failed"));
+    }
+}
@@ -3,7 +3,9 @@ package com.superbiz.agent.tool;
 import com.superbiz.agent.dto.KnowledgeEntry;
 import com.superbiz.agent.dto.LookupResult;
 import com.superbiz.agent.service.KnowledgeIndexService;
+import com.superbiz.agent.service.ToolInvocationRecorder;
 import com.superbiz.agent.service.VectorSearchService;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.mockito.InjectMocks;
@@ -28,6 +30,15 @@ class LookupKnowledgeToolTest {
    @Mock
    private VectorSearchService vectorSearchService;

+    @Mock
+    private ToolInvocationRecorder toolInvocationRecorder;
+
+    @Mock
+    private RetrievedDocTracker retrievedDocTracker;
+
+    @Mock
+    private ObjectMapper objectMapper;
+
    @InjectMocks
    private LookupKnowledgeTool tool;