feat: 增加 AgentRun 到 HWLAB 的 Kafka 调试 CLI

AGENTS.md

@@ -44,6 +44,7 @@ HWLAB 是硬件实验室运行面和控制面项目。本文件只作为低噪
 - Code Agent 真实回复、provider blocker 与 readiness：[docs/reference/code-agent-chat-readiness.md](docs/reference/code-agent-chat-readiness.md)
 - OpenCode 独立 UI 接入、iframe 鉴权换票与 OTel 追踪：[docs/reference/opencode-integration.md](docs/reference/opencode-integration.md)
 - AgentRun 手动调度与 UniDesk SSH passthrough：[docs/reference/agentrun-code-agent-dispatch.md](docs/reference/agentrun-code-agent-dispatch.md)
+- Kafka session 源码直连与独立 debug topic 单步调试：[docs/reference/kafka-source-direct-debug.md](docs/reference/kafka-source-direct-debug.md)
 - 文档治理与 docs-spec 本地权威：[docs/reference/documentation-governance.md](docs/reference/documentation-governance.md)
 - 中文优先规则：[docs/reference/chinese-first-documentation.md](docs/reference/chinese-first-documentation.md)
 - 用户反馈分流：[docs/reference/user-feedback-triage.md](docs/reference/user-feedback-triage.md)

docs/reference/kafka-source-direct-debug.md

@@ -0,0 +1,41 @@
+# Kafka 源码直连调试
+
+- `hwlab-cli kafka regenerate hwlab` 用于把指定 AgentRun session 的事件直接映射为 HWLAB debug 事件：
+  - 调用生产路径同源的 AgentRun 解码与 HWLAB 事件映射函数；
+  - 不启动 Cloud API；
+  - 不访问数据库；
+  - 不依赖 transactional projector；
+  - 默认输出到 `hwlab.event.debug.v1`，并禁止写入产品 topic `hwlab.event.v1`。
+
+- Kafka 输入适合验证真实 topic 中的 session 事件：
+  - 命令为 `hwlab-cli kafka regenerate hwlab --from kafka --session-id <sessionId>`；
+  - 默认输入 topic 为 `agentrun.event.debug.v1`；
+  - 产品 canonical 输入可显式指定 `--input-topic agentrun.event.v1`；
+  - output topic 优先读取 owning YAML 注入的 `HWLAB_KAFKA_HWLAB_DEBUG_EVENT_TOPIC`；
+  - consumer group prefix 优先读取 owning YAML 注入的 `HWLAB_KAFKA_HWLAB_DEBUG_GROUP_PREFIX`；
+  - 未注入时使用离线合同值 `hwlab.event.debug.v1` 与 `hwlab-v03-workbench-isolated-debug`；
+  - Workbench 消费 debug topic 由 `HWLAB_WORKBENCH_KAFKA_DEBUG_REPLAY_ENABLED` 独立控制；
+  - CLI 的离线映射不依赖该运行面开关；
+  - Kafka 输入默认发布到独立 HWLAB debug topic；
+  - `--no-publish` 可只生成本地证据。
+
+- JSONL 输入适合完全离线的单步测试：
+  - 命令为 `hwlab-cli kafka regenerate hwlab --from jsonl --session-id <sessionId> --jsonl-file <path> --no-publish`；
+  - 每行可直接放 envelope，也可使用 `{topic,partition,offset,key,value,headers}` transport wrapper；
+  - JSONL 输入默认不连接 Kafka；
+  - 完整映射结果写入 `.state/hwlab-cli/kafka-debug/` 下的 JSONL artifact；
+  - `--output-jsonl` 可显式选择 artifact 路径。
+
+- 输入合同按来源隔离：
+  - `agentrun.event.v1` 必须通过严格 canonical decoder；
+  - `agentrun.event.reconstruction.v1` 只允许进入 debug decoder；
+  - stdio reconstruction 的 `eventId`、`outboxSeq`、`originalEventId` 和 `originalOutboxSeq` 必须保持 `null`；
+  - reconstruction 必须声明 `stdio-derived partial reconstruction`；
+  - reconstruction 必须保留 `identityDerivation`，禁止静默猜测 HWLAB session identity。
+
+- 输出验证采用一对一和原序映射：
+  - `--expect-count <n>` 在映射和发布前锁定输入数量；
+  - 命令验证 source sequence、trace、raw AgentRun session、派生 HWLAB session 和源消息哈希；
+  - 默认输出为 compact text；
+  - 只有显式 `--json` 才输出结构化 JSON；
+  - 成功和失败都返回可执行的 `next` hint。

internal/cloud/kafka-event-bridge.ts

@@ -15,6 +15,10 @@ const TRUE_VALUES = new Set(["1", "true", "yes", "on"]);
 const DEFAULT_AGENTRUN_EVENT_TOPIC = "agentrun.event.v1";
 const DEFAULT_HWLAB_EVENT_TOPIC = "hwlab.event.v1";
 const DEFAULT_STDIO_TOPIC = "codex-stdio.raw.v1";
+export const DEFAULT_AGENTRUN_DEBUG_EVENT_TOPIC = "agentrun.event.debug.v1";
+export const DEFAULT_HWLAB_DEBUG_EVENT_TOPIC = "hwlab.event.debug.v1";
+export const AGENTRUN_STDIO_RECONSTRUCTION_SCHEMA = "agentrun.event.reconstruction.v1";
+export const AGENTRUN_STDIO_RECONSTRUCTION_KIND = "stdio-derived partial reconstruction";
 const DEFAULT_CLIENT_ID = "hwlab-v03-cloud-api";
 const DEFAULT_QUERY_TIMEOUT_MS = 5000;
 const DEFAULT_QUERY_LIMIT = 50;
@@ -427,10 +431,7 @@ export async function publishAgentRunKafkaMessageLive(kafkaMessage = {}, { produ
     sourceKey: transport.sourceKey,
     inputSha256: transport.inputSha256
   });
-  const publishMetadata = await producer.send({
+  const publishMetadata = await producer.send({ topic: config.hwlabTopic, messages: [buildHwlabKafkaProducerMessage(projected)] });
-    topic: config.hwlabTopic,
-    messages: [{ key: kafkaMessageKey(projected), value: JSON.stringify(projected), headers: kafkaHeaders(projected) }]
-  });
   const publishedRecord = Array.isArray(publishMetadata) ? publishMetadata[0] : null;
   emitLiveKafkaOtelSpan("hwlab.kafka.live.direct_publish", projected, {
     topic: config.hwlabTopic,
@@ -666,6 +667,184 @@ export function decodeCanonicalAgentRunKafkaMessage(kafkaMessage = {}) {
   }
 }
 
+export function decodeAgentRunDebugProjectionMessage(kafkaMessage = {}) {
+  const valueText = kafkaMessage?.message?.value ? Buffer.from(kafkaMessage.message.value).toString("utf8") : "";
+  const envelope = parseJson(valueText);
+  if (envelope?.schema === "agentrun.event.v1") {
+    const decoded = decodeCanonicalAgentRunKafkaMessage(kafkaMessage);
+    return decoded.ok
+      ? { ...decoded, inputKind: "canonical-durable", reconstruction: null }
+      : { ...decoded, inputKind: "canonical-invalid", reconstruction: null };
+  }
+  try {
+    assertAgentRunStdioReconstruction(envelope);
+    return {
+      ok: true,
+      event: envelope,
+      sourceEventId: null,
+      inputSha256: sha256(valueText),
+      inputKind: AGENTRUN_STDIO_RECONSTRUCTION_KIND,
+      reconstruction: envelope.reconstruction,
+      valuesPrinted: false
+    };
+  } catch (error) {
+    return {
+      ok: false,
+      envelope,
+      sourceEventId: null,
+      inputSha256: sha256(valueText),
+      inputKind: "reconstruction-invalid",
+      reconstruction: envelope?.reconstruction ?? null,
+      error: {
+        code: error?.code ?? "workbench_kafka_debug_message_invalid",
+        message: errorMessage(error),
+        valuesRedacted: true
+      },
+      valuesPrinted: false
+    };
+  }
+}
+
+export function projectAgentRunKafkaMessageToHwlabDebugEvent(kafkaMessage = {}, options = {}) {
+  const decoded = decodeAgentRunDebugProjectionMessage(kafkaMessage);
+  if (!decoded.ok) return decoded;
+  const transport = kafkaTransport(kafkaMessage);
+  const projected = projectAgentRunKafkaEventToHwlabEvent(decoded.event, {
+    source: stringValue(options.source) || "hwlab-cli-kafka-debug",
+    producedAt: options.producedAt,
+    sourceTopic: transport.sourceTopic,
+    sourcePartition: transport.sourcePartition,
+    sourceOffset: transport.sourceOffset,
+    sourceKey: transport.sourceKey,
+    inputSha256: transport.inputSha256
+  });
+  if (!stringValue(projected?.traceId) || (!decoded.reconstruction && !stringValue(projected?.sessionId))) {
+    return {
+      ok: false,
+      inputKind: decoded.inputKind,
+      error: {
+        code: "hwlab_kafka_debug_correlation_missing",
+        message: decoded.reconstruction
+          ? "AgentRun reconstruction debug projection requires traceId lineage."
+          : "Canonical AgentRun debug projection requires traceId and sessionId lineage.",
+        valuesRedacted: true
+      },
+      valuesPrinted: false
+    };
+  }
+  const debugSessionId = decoded.reconstruction ? stringValue(decoded.event.hwlabSessionId) : stringValue(projected.sessionId);
+  const debugEnvelope = {
+    ...projected,
+    schema: DEFAULT_HWLAB_DEBUG_EVENT_TOPIC,
+    eventType: "hwlab.trace.event.debug-projected",
+    sessionId: debugSessionId,
+    hwlabSessionId: debugSessionId,
+    event: decoded.reconstruction ? { ...projected.event, sessionId: debugSessionId } : projected.event,
+    outboxSeq: null,
+    ...(decoded.reconstruction ? { eventId: null, sourceEventId: null } : {}),
+    diagnostics: {
+      projectedBy: "hwlab-kafka-event-bridge",
+      projectionMode: "source-direct-debug",
+      inputKind: decoded.inputKind,
+      valuesPrinted: false
+    },
+    debugLineage: {
+      inputSchema: firstText(decoded.event.schema),
+      inputEventType: firstText(decoded.event.eventType),
+      inputEventId: firstText(decoded.event.eventId),
+      inputOutboxSeq: integerValue(decoded.event.outboxSeq),
+      inputTraceId: firstText(decoded.event.traceId, decoded.event.event?.payload?.traceId),
+      inputSessionId: firstText(decoded.event.sessionId, decoded.event.run?.sessionId),
+      inputHwlabSessionId: firstText(decoded.event.hwlabSessionId, decoded.event.run?.hwlabSessionId),
+      inputRunId: firstText(decoded.event.runId, decoded.event.run?.runId),
+      inputCommandId: firstText(decoded.event.commandId, decoded.event.command?.commandId),
+      sourceSeq: integerValue(decoded.event.sourceSeq ?? decoded.event.event?.seq),
+      valuesPrinted: false
+    },
+    ...(decoded.reconstruction ? {
+      reconstruction: {
+        ...decoded.reconstruction,
+        observedAt: timestampValue(decoded.event.observedAt),
+        inputSchema: decoded.event.schema,
+        inputEventType: decoded.event.eventType,
+        valuesPrinted: false
+      }
+    } : {}),
+    valuesPrinted: false
+  };
+  return {
+    ok: true,
+    inputKind: decoded.inputKind,
+    envelope: debugEnvelope,
+    sourceSeq: integerValue(decoded.event.sourceSeq ?? decoded.event.event?.seq),
+    traceId: debugEnvelope.traceId,
+    sessionId: debugEnvelope.sessionId,
+    valuesPrinted: false
+  };
+}
+
+function assertAgentRunStdioReconstruction(value) {
+  if (!value || typeof value !== "object" || Array.isArray(value)) throw contractError("hwlab_kafka_debug_json_invalid", "AgentRun reconstruction value must be a JSON object.");
+  if (value.schema !== AGENTRUN_STDIO_RECONSTRUCTION_SCHEMA || value.eventType !== "agentrun.event.reconstructed") {
+    throw contractError("hwlab_kafka_debug_schema_invalid", "AgentRun debug input must be a canonical committed event or a stdio reconstruction envelope.");
+  }
+  if (value.eventId !== null || value.outboxSeq !== null) {
+    throw contractError("hwlab_kafka_debug_identity_invalid", "Stdio reconstruction must keep eventId and outboxSeq null.");
+  }
+  for (const [name, field] of [["traceId", value.traceId], ["sessionId", value.sessionId], ["runId", value.runId]]) {
+    if (!stringValue(field)) throw contractError("hwlab_kafka_debug_lineage_invalid", `Stdio reconstruction ${name} is required.`);
+  }
+  if (!Number.isInteger(Number(value.sourceSeq)) || Number(value.sourceSeq) <= 0) {
+    throw contractError("hwlab_kafka_debug_sequence_invalid", "Stdio reconstruction sourceSeq must be a positive integer.");
+  }
+  if (!value.event || typeof value.event !== "object" || Array.isArray(value.event) || value.event.id !== null || Number(value.event.seq) !== Number(value.sourceSeq)) {
+    throw contractError("hwlab_kafka_debug_identity_invalid", "Stdio reconstruction event identity must remain null and its seq must match sourceSeq.");
+  }
+  if (!value.event.payload || typeof value.event.payload !== "object" || Array.isArray(value.event.payload)) {
+    throw contractError("hwlab_kafka_debug_schema_invalid", "Stdio reconstruction event payload must be an object.");
+  }
+  if (value.event.payload.reconstructed !== true || value.event.payload.reconstructionKind !== AGENTRUN_STDIO_RECONSTRUCTION_KIND) {
+    throw contractError("hwlab_kafka_debug_lineage_invalid", "Stdio reconstruction payload must disclose its partial reconstruction kind.");
+  }
+  const reconstruction = value.reconstruction;
+  if (!reconstruction || typeof reconstruction !== "object" || Array.isArray(reconstruction)
+    || reconstruction.kind !== AGENTRUN_STDIO_RECONSTRUCTION_KIND
+    || reconstruction.completeLifecycle !== false
+    || reconstruction.originalEventId !== null
+    || reconstruction.originalOutboxSeq !== null) {
+    throw contractError("hwlab_kafka_debug_lineage_invalid", "Stdio reconstruction lineage is incomplete or claims durable identity.");
+  }
+  assertReconstructionIdentityDerivation(value, reconstruction.identityDerivation);
+  if (value.valuesPrinted !== false || containsSecretLikeKey(value)) {
+    throw contractError("hwlab_kafka_debug_redaction_invalid", "Stdio reconstruction must be redacted and declare valuesPrinted=false.");
+  }
+  return value;
+}
+
+function assertReconstructionIdentityDerivation(value, derivation) {
+  if (!derivation || typeof derivation !== "object" || Array.isArray(derivation) || derivation.valuesPrinted !== false
+    || derivation.sourceField !== "sessionId" || derivation.targetField !== "hwlabSessionId") {
+    throw contractError("hwlab_kafka_debug_identity_derivation_invalid", "Stdio reconstruction must disclose the session identity derivation contract.");
+  }
+  const rawSessionId = stringValue(value.sessionId);
+  const match = rawSessionId?.match(/^ses_agentrun_([0-9a-fA-F]{8})_([0-9a-fA-F]{4})_([0-9a-fA-F]{4})_([0-9a-fA-F]{4})_([0-9a-fA-F]{12})$/u);
+  if (match) {
+    const expectedHwlabSessionId = `ses_${match.slice(1).join("-").toLowerCase()}`;
+    if (value.hwlabSessionId !== expectedHwlabSessionId || value.run?.hwlabSessionId !== expectedHwlabSessionId
+      || derivation.kind !== "agentrun-session-uuid-to-hwlab-session" || derivation.reversible !== true
+      || derivation.sourcePrefix !== "ses_agentrun_" || derivation.targetPrefix !== "ses_"
+      || derivation.separatorTransform !== "underscore-to-hyphen") {
+      throw contractError("hwlab_kafka_debug_identity_derivation_invalid", "Derived hwlabSessionId does not match the disclosed reversible AgentRun session identity transform.");
+    }
+    return;
+  }
+  if (value.hwlabSessionId !== null || value.run?.hwlabSessionId !== null
+    || derivation.kind !== "none" || derivation.reversible !== false
+    || derivation.reason !== "source sessionId is not ses_agentrun_<uuid-with-underscores>") {
+    throw contractError("hwlab_kafka_debug_identity_derivation_invalid", "Non-reversible AgentRun session identity must keep hwlabSessionId null and disclose why.");
+  }
+}
+
 function assertCanonicalAgentRunEvent(value) {
   if (!value || typeof value !== "object" || Array.isArray(value)) throw contractError("workbench_kafka_json_invalid", "Kafka value must be a JSON object.");
   assertClosedObject(value, ["schema", "eventType", "source", "eventId", "outboxSeq", "sourceSeq", "committedAt", "traceId", "sessionId", "hwlabSessionId", "runId", "commandId", "run", "command", "event", "valuesPrinted"], "AgentRun envelope");
@@ -718,7 +897,7 @@ function kafkaTransport(kafkaMessage = {}) {
     sourcePartition: integerValue(kafkaMessage.partition),
     sourceOffset: stringValue(kafkaMessage.message?.offset),
     sourceKey: kafkaMessage.message?.key ? Buffer.from(kafkaMessage.message.key).toString("utf8") : null,
-    inputSha256: sha256(valueText),
+    inputSha256: stringValue(kafkaMessage.inputSha256) || sha256(valueText),
     valuesPrinted: false
   };
 }
@@ -734,7 +913,7 @@ function requireKafkaProjectorStore(runtimeStore, capabilities = {}) {
   if (missing.length > 0) throw contractError("hwlab_kafka_projector_store_invalid", `Kafka durable capabilities require a runtime store: ${missing.join(", ")}`);
 }
 
-export async function queryKafkaEventStream({ env = process.env, stream = "hwlab", topic = null, traceId = null, sessionId = null, runId = null, commandId = null, limit = DEFAULT_QUERY_LIMIT, timeoutMs = DEFAULT_QUERY_TIMEOUT_MS, fromBeginning = true, kafkaFactory = defaultKafkaFactory } = {}) {
+export async function queryKafkaEventStream({ env = process.env, stream = "hwlab", topic = null, traceId = null, sessionId = null, runId = null, commandId = null, limit = DEFAULT_QUERY_LIMIT, timeoutMs = DEFAULT_QUERY_TIMEOUT_MS, fromBeginning = true, groupIdPrefix = null, kafkaFactory = defaultKafkaFactory } = {}) {
   const brokers = csv(env.HWLAB_KAFKA_BOOTSTRAP_SERVERS);
   if (brokers.length === 0) throw new Error("HWLAB_KAFKA_BOOTSTRAP_SERVERS is required for Kafka event queries.");
   const clientId = stringValue(env.HWLAB_KAFKA_CLIENT_ID) || DEFAULT_CLIENT_ID;
@@ -742,7 +921,9 @@ export async function queryKafkaEventStream({ env = process.env, stream = "hwlab
   const maxEvents = Math.max(1, integerValue(limit) || DEFAULT_QUERY_LIMIT);
   const budgetMs = Math.max(250, integerValue(timeoutMs) || DEFAULT_QUERY_TIMEOUT_MS);
   const kafka = kafkaFactory({ brokers, clientId: `${clientId}-query` });
-  const consumer = kafka.consumer({ groupId: `${clientId}-query-${Date.now()}-${randomUUID().slice(0, 8)}`, allowAutoTopicCreation: false });
+  const resolvedGroupIdPrefix = stringValue(groupIdPrefix) || `${clientId}-query`;
+  const groupId = `${resolvedGroupIdPrefix}-${Date.now()}-${randomUUID().slice(0, 8)}`;
+  const consumer = kafka.consumer({ groupId, allowAutoTopicCreation: false });
   const events = [];
   let timer = null;
   let running = false;
@@ -770,6 +951,7 @@ export async function queryKafkaEventStream({ env = process.env, stream = "hwlab
             offset: message.offset,
             key: message.key ? Buffer.from(message.key).toString("utf8") : null,
             timestamp: message.timestamp ?? null,
+            valueSha256: sha256(valueText),
             value
           });
           if (events.length >= maxEvents) finish();
@@ -785,6 +967,7 @@ export async function queryKafkaEventStream({ env = process.env, stream = "hwlab
     ok: true,
     stream,
     topic: resolvedTopic,
+    groupId,
     count: events.length,
     limit: maxEvents,
     timeoutMs: budgetMs,
@@ -976,6 +1159,14 @@ async function boundedDisconnect(consumer, timeoutMs = 2000) {
   }
 }
 
+export function buildHwlabKafkaProducerMessage(projected) {
+  return {
+    key: kafkaMessageKey(projected),
+    value: JSON.stringify(projected),
+    headers: kafkaHeaders(projected)
+  };
+}
+
 function kafkaMessageKey(projected) {
   return firstText(projected.sessionId, projected.traceId, projected.context?.commandId, projected.context?.runId) || "hwlab-event";
 }
@@ -1032,6 +1223,7 @@ function stringValue(value) {
 }
 
 function integerValue(value) {
+  if (value === null || value === undefined || (typeof value === "string" && value.trim() === "")) return null;
   const parsed = Number(value);
   return Number.isFinite(parsed) ? Math.floor(parsed) : null;
 }

tools/hwlab-cli/bin/hwlab-cli.ts

@@ -1,4 +1,8 @@
 #!/usr/bin/env bun
 import { main } from "../../src/hwlab-cli-lib.ts";
 
-await main();
+const argv = process.argv.slice(2);
+if (argv[0] === "kafka") {
+  const { mainKafkaCli } = await import("../../src/hwlab-cli/kafka-regenerate.ts");
+  await mainKafkaCli(argv.slice(1));
+} else await main(argv);

tools/hwlab-cli/kafka-regenerate.test.ts

@@ -0,0 +1,330 @@
+import assert from "node:assert/strict";
+import { mkdtemp, readFile, writeFile } from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+
+import { test } from "bun:test";
+
+import { queryKafkaEventStream } from "../../internal/cloud/kafka-event-bridge.ts";
+import { mapAgentRunRecordsToHwlabDebugEvents, runKafkaCli } from "../src/hwlab-cli/kafka-regenerate.ts";
+
+const SESSION_ID = "ses_agentrun_5ec4e141_6abc_466d_9afe_049f7c0ac105";
+const HWLAB_SESSION_ID = "ses_5ec4e141-6abc-466d-9afe-049f7c0ac105";
+const TRACE_ID = "trc_mretx18t3jl4tg";
+const RUN_ID = "run_a78cbcb05f2c4afaa748a3158db44998";
+
+test("offline JSONL maps 35 stdio reconstructions to 35 ordered HWLAB debug events without runtime dependencies", async () => {
+  const cwd = await mkdtemp(path.join(os.tmpdir(), "hwlab-kafka-debug-jsonl-"));
+  const inputFile = path.join(cwd, "agentrun-events.jsonl");
+  const outputFile = path.join(cwd, "hwlab-events.jsonl");
+  const records = Array.from({ length: 35 }, (_, index) => reconstructionRecord(index + 1));
+  await writeFile(inputFile, records.map((record) => JSON.stringify(record)).join("\n") + "\n", "utf8");
+
+  const result = await runKafkaCli([
+    "regenerate", "hwlab",
+    "--from", "jsonl",
+    "--session-id", SESSION_ID,
+    "--trace-id", TRACE_ID,
+    "--jsonl-file", inputFile,
+    "--output-jsonl", outputFile,
+    "--expect-count", "35",
+    "--no-publish",
+    "--json"
+  ], {
+    cwd,
+    env: {},
+    now: () => "2026-07-10T12:00:00.000Z",
+    async createProducer() { throw new Error("offline JSONL must not create a producer"); }
+  });
+
+  assert.equal(result.exitCode, 0);
+  assert.equal(result.payload.input.readCount, 35);
+  assert.equal(result.payload.output.count, 35);
+  assert.equal(result.payload.output.publishedCount, 0);
+  assert.deepEqual(result.payload.validation, {
+    expectedCount: 35,
+    oneToOne: true,
+    orderPreserved: true,
+    lineagePreserved: true,
+    firstSourceSeq: 1,
+    lastSourceSeq: 35,
+    inputKinds: ["stdio-derived partial reconstruction"]
+  });
+  assert.deepEqual(result.payload.runtimeDependencies, {
+    cloudApi: false,
+    database: false,
+    transactionalProjector: false,
+    kafka: false
+  });
+
+  const output = (await readFile(outputFile, "utf8")).trim().split("\n").map(JSON.parse);
+  assert.equal(output.length, 35);
+  assert.deepEqual(output.map((row) => row.value.debugLineage.sourceSeq), Array.from({ length: 35 }, (_, index) => index + 1));
+  assert.ok(output.every((row) => row.topic === "hwlab.event.debug.v1"));
+  assert.ok(output.every((row) => row.value.schema === "hwlab.event.debug.v1"));
+  assert.ok(output.every((row) => row.value.eventId === null && row.value.sourceEventId === null && row.value.outboxSeq === null));
+  assert.ok(output.every((row) => row.value.debugLineage.inputEventId === null && row.value.debugLineage.inputOutboxSeq === null));
+  assert.ok(output.every((row) => row.value.sourceEvent.partition === null && row.value.sourceEvent.offset === null));
+  assert.ok(output.every((row) => row.value.traceId === TRACE_ID && row.value.sessionId === HWLAB_SESSION_ID));
+  assert.ok(output.every((row) => row.value.debugLineage.inputSessionId === SESSION_ID));
+  assert.ok(output.every((row) => row.value.debugLineage.inputHwlabSessionId === HWLAB_SESSION_ID));
+  assert.ok(output.every((row) => row.value.reconstruction.kind === "stdio-derived partial reconstruction"));
+  assert.ok(output.every((row) => row.value.reconstruction.originalEventId === null && row.value.reconstruction.originalOutboxSeq === null));
+  assert.ok(output.every((row) => row.value.reconstruction.identityDerivation.kind === "agentrun-session-uuid-to-hwlab-session"));
+  assert.ok(output.every((row) => row.value.reconstruction.identityDerivation.reversible === true));
+});
+
+test("Kafka reader and producer are injected while canonical AgentRun events use strict decode and isolated output", async () => {
+  const cwd = await mkdtemp(path.join(os.tmpdir(), "hwlab-kafka-debug-canonical-"));
+  const records = Array.from({ length: 35 }, (_, index) => canonicalRecord(index + 1));
+  const readerCalls: any[] = [];
+  const producerCalls: any[] = [];
+  let connected = 0;
+  let disconnected = 0;
+  const result = await runKafkaCli([
+    "regenerate", "hwlab",
+    "--from", "kafka",
+    "--session-id", SESSION_ID,
+    "--trace-id", TRACE_ID,
+    "--input-topic", "agentrun.event.v1",
+    "--expect-count", "35",
+    "--output-jsonl", path.join(cwd, "canonical-output.jsonl"),
+    "--json"
+  ], {
+    cwd,
+    env: {
+      HWLAB_KAFKA_BOOTSTRAP_SERVERS: "kafka.test:9092",
+      HWLAB_KAFKA_HWLAB_DEBUG_EVENT_TOPIC: "hwlab.event.debug.v1",
+      HWLAB_KAFKA_HWLAB_DEBUG_GROUP_PREFIX: "hwlab-v03-workbench-isolated-debug"
+    },
+    now: () => "2026-07-10T12:00:00.000Z",
+    async readKafka(input) {
+      readerCalls.push(input);
+      return { ok: true, groupId: "hwlab-v03-agentrun-event-debug-regenerate-test", events: records };
+    },
+    async createProducer() {
+      return {
+        async connect() { connected += 1; },
+        async send(input: any) { producerCalls.push(input); return [{ topicName: input.topic, partition: 0, baseOffset: "100" }]; },
+        async disconnect() { disconnected += 1; }
+      };
+    }
+  });
+
+  assert.equal(result.exitCode, 0);
+  assert.equal(readerCalls.length, 1);
+  assert.equal(readerCalls[0].groupIdPrefix, "hwlab-v03-workbench-isolated-debug");
+  assert.equal(readerCalls[0].sessionId, SESSION_ID);
+  assert.equal(readerCalls[0].limit, 36, "exact count verification must leave room to detect one extra event");
+  assert.equal(connected, 1);
+  assert.equal(disconnected, 1);
+  assert.equal(producerCalls.length, 1);
+  assert.equal(producerCalls[0].topic, "hwlab.event.debug.v1");
+  assert.equal(producerCalls[0].messages.length, 35);
+  const envelopes = producerCalls[0].messages.map((message: any) => JSON.parse(message.value));
+  assert.deepEqual(envelopes.map((event: any) => event.debugLineage.sourceSeq), Array.from({ length: 35 }, (_, index) => index + 1));
+  assert.deepEqual(envelopes.map((event: any) => event.eventId), Array.from({ length: 35 }, (_, index) => `hwlab:evt_${index + 1}`));
+  assert.deepEqual(envelopes.map((event: any) => event.debugLineage.inputOutboxSeq), Array.from({ length: 35 }, (_, index) => index + 1));
+  assert.ok(envelopes.every((event: any) => event.diagnostics.inputKind === "canonical-durable"));
+  assert.ok(envelopes.every((event: any) => event.schema === "hwlab.event.debug.v1"));
+  assert.equal(result.payload.output.publishedCount, 35);
+  assert.deepEqual(result.payload.config.outputTopic, { value: "hwlab.event.debug.v1", source: "env:HWLAB_KAFKA_HWLAB_DEBUG_EVENT_TOPIC" });
+  assert.deepEqual(result.payload.config.groupPrefix, { value: "hwlab-v03-workbench-isolated-debug", source: "env:HWLAB_KAFKA_HWLAB_DEBUG_GROUP_PREFIX" });
+  assert.equal(result.payload.validation.orderPreserved, true);
+  assert.equal(result.payload.validation.lineagePreserved, true);
+});
+
+test("reconstruction identity fabrication and product output topic fail closed", async () => {
+  const cwd = await mkdtemp(path.join(os.tmpdir(), "hwlab-kafka-debug-invalid-"));
+  const forged = reconstructionRecord(1);
+  forged.value.eventId = "evt_forged";
+  const inputFile = path.join(cwd, "forged.jsonl");
+  await writeFile(inputFile, `${JSON.stringify(forged)}\n`, "utf8");
+
+  const forgedResult = await runKafkaCli([
+    "regenerate", "hwlab", "--from", "jsonl", "--session-id", SESSION_ID,
+    "--jsonl-file", inputFile, "--no-publish"
+  ], { cwd, env: {}, now: () => "2026-07-10T12:00:00.000Z" });
+  assert.equal(forgedResult.exitCode, 1);
+  assert.equal(forgedResult.payload.error.code, "hwlab_kafka_debug_identity_invalid");
+
+  const productResult = await runKafkaCli([
+    "regenerate", "hwlab", "--from", "jsonl", "--session-id", SESSION_ID,
+    "--jsonl-file", inputFile, "--output-topic", "hwlab.event.v1", "--no-publish"
+  ], { cwd, env: {}, now: () => "2026-07-10T12:00:00.000Z" });
+  assert.equal(productResult.exitCode, 1);
+  assert.equal(productResult.payload.error.code, "product_topic_forbidden");
+});
+
+test("Kafka query exposes the isolated generated group and original value hash", async () => {
+  const valueText = JSON.stringify(canonicalRecord(1).value);
+  const consumerConfigs: any[] = [];
+  const consumer = {
+    async connect() {},
+    async subscribe() {},
+    async run({ eachMessage }: any) {
+      await eachMessage({
+        topic: "agentrun.event.v1",
+        partition: 0,
+        message: { offset: "1601", key: Buffer.from(SESSION_ID), value: Buffer.from(valueText), timestamp: "1783681200000" }
+      });
+    },
+    async stop() {},
+    async disconnect() {}
+  };
+  const queried = await queryKafkaEventStream({
+    env: { HWLAB_KAFKA_BOOTSTRAP_SERVERS: "kafka.test:9092", HWLAB_KAFKA_CLIENT_ID: "hwlab-test" },
+    topic: "agentrun.event.v1",
+    sessionId: SESSION_ID,
+    limit: 1,
+    groupIdPrefix: "hwlab-v03-workbench-isolated-debug",
+    kafkaFactory() {
+      return { consumer(config: any) { consumerConfigs.push(config); return consumer; } };
+    }
+  });
+  assert.match(queried.groupId, /^hwlab-v03-workbench-isolated-debug-\d+-[a-f0-9]{8}$/u);
+  assert.equal(consumerConfigs[0].groupId, queried.groupId);
+  assert.equal(queried.events[0].valueSha256, createSha256(valueText));
+});
+
+test("non-reversible AgentRun session identity stays only in debug lineage", () => {
+  const rawSessionId = "ses_agentrun_not_uuid";
+  const record = reconstructionRecord(1);
+  record.key = rawSessionId;
+  record.value.sessionId = rawSessionId;
+  record.value.hwlabSessionId = null;
+  record.value.run.sessionId = rawSessionId;
+  record.value.run.hwlabSessionId = null;
+  record.value.event.payload.sessionId = rawSessionId;
+  record.value.reconstruction.identityDerivation = {
+    kind: "none",
+    sourceField: "sessionId",
+    targetField: "hwlabSessionId",
+    reversible: false,
+    reason: "source sessionId is not ses_agentrun_<uuid-with-underscores>",
+    valuesPrinted: false
+  };
+  const mapped = mapAgentRunRecordsToHwlabDebugEvents([record], {
+    sessionId: rawSessionId,
+    traceId: TRACE_ID,
+    expectedCount: 1,
+    producedAt: "2026-07-10T12:00:00.000Z"
+  });
+  assert.equal(mapped.events[0].sessionId, null);
+  assert.equal(mapped.events[0].hwlabSessionId, null);
+  assert.equal(mapped.events[0].event.sessionId, null);
+  assert.equal(mapped.events[0].debugLineage.inputSessionId, rawSessionId);
+  assert.equal(mapped.events[0].reconstruction.identityDerivation.kind, "none");
+});
+
+function reconstructionRecord(seq: number): any {
+  const value = {
+    schema: "agentrun.event.reconstruction.v1",
+    eventType: "agentrun.event.reconstructed",
+    source: "agentrun-cli-stdio-reconstruction",
+    eventId: null,
+    outboxSeq: null,
+    sourceSeq: seq,
+    observedAt: `2026-07-10T11:00:${String(seq).padStart(2, "0")}.000Z`,
+    traceId: TRACE_ID,
+    sessionId: SESSION_ID,
+    hwlabSessionId: HWLAB_SESSION_ID,
+    runId: RUN_ID,
+    commandId: "cmd_9fff03fc124b4203b065d04bbb7c4f1e",
+    run: { runId: RUN_ID, sessionId: SESSION_ID, hwlabSessionId: HWLAB_SESSION_ID, status: "running", valuesPrinted: false },
+    command: { commandId: "cmd_9fff03fc124b4203b065d04bbb7c4f1e", runId: RUN_ID, seq: 1, type: "run", state: "running", valuesPrinted: false },
+    event: {
+      id: null,
+      runId: RUN_ID,
+      seq,
+      type: "backend_status",
+      payload: {
+        traceId: TRACE_ID,
+        sessionId: SESSION_ID,
+        phase: `reconstructed-${seq}`,
+        reconstructed: true,
+        reconstructionKind: "stdio-derived partial reconstruction"
+      },
+      createdAt: `2026-07-10T11:00:${String(seq).padStart(2, "0")}.000Z`
+    },
+    reconstruction: {
+      kind: "stdio-derived partial reconstruction",
+      completeLifecycle: false,
+      originalEventId: null,
+      originalOutboxSeq: null,
+      sourceTopic: "codex-stdio.raw.v1",
+      sourcePartition: 0,
+      sourceOffset: String(3500 + seq),
+      sourceFrameSeq: seq,
+      sourceValueSha256: `sha256:${String(seq).padStart(64, "0")}`,
+      identityDerivation: {
+        kind: "agentrun-session-uuid-to-hwlab-session",
+        sourceField: "sessionId",
+        targetField: "hwlabSessionId",
+        reversible: true,
+        sourcePrefix: "ses_agentrun_",
+        targetPrefix: "ses_",
+        separatorTransform: "underscore-to-hyphen",
+        valuesPrinted: false
+      }
+    },
+    valuesPrinted: false
+  };
+  return { topic: "agentrun.event.debug.v1", partition: null, offset: null, key: SESSION_ID, value, headers: { "x-trace-id": TRACE_ID } };
+}
+
+function canonicalRecord(seq: number): any {
+  const eventId = `evt_${seq}`;
+  const value = {
+    schema: "agentrun.event.v1",
+    eventType: "agentrun.event.committed",
+    source: "agentrun-manager",
+    eventId,
+    outboxSeq: seq,
+    sourceSeq: seq,
+    committedAt: `2026-07-10T11:00:${String(seq).padStart(2, "0")}.000Z`,
+    traceId: TRACE_ID,
+    sessionId: SESSION_ID,
+    hwlabSessionId: HWLAB_SESSION_ID,
+    runId: RUN_ID,
+    commandId: "cmd_9fff03fc124b4203b065d04bbb7c4f1e",
+    run: {
+      runId: RUN_ID,
+      status: "running",
+      terminalStatus: null,
+      failureKind: null,
+      tenantId: "tenant-test",
+      projectId: "project-test",
+      providerId: "gpt.pika",
+      backendProfile: "gpt.pika",
+      sessionId: SESSION_ID,
+      hwlabSessionId: HWLAB_SESSION_ID,
+      conversationId: null,
+      threadId: null,
+      valuesPrinted: false
+    },
+    command: {
+      commandId: "cmd_9fff03fc124b4203b065d04bbb7c4f1e",
+      runId: RUN_ID,
+      seq: 1,
+      type: "run",
+      state: "running",
+      payloadHash: "hash",
+      valuesPrinted: false
+    },
+    event: {
+      id: eventId,
+      runId: RUN_ID,
+      seq,
+      type: "backend_status",
+      payload: { traceId: TRACE_ID, sessionId: SESSION_ID, phase: `canonical-${seq}` },
+      createdAt: `2026-07-10T11:00:${String(seq).padStart(2, "0")}.000Z`
+    },
+    valuesPrinted: false
+  };
+  return { topic: "agentrun.event.v1", partition: 0, offset: String(1600 + seq), key: SESSION_ID, value };
+}
+
+function createSha256(value: string) {
+  return new Bun.CryptoHasher("sha256").update(value).digest("hex");
+}

tools/src/hwlab-cli/kafka-regenerate.ts

@@ -0,0 +1,507 @@
+// Responsibility: regenerate isolated HWLAB debug Kafka events from AgentRun Kafka or JSONL input without Cloud API, DB, or projector dependencies.
+
+import { createHash, randomUUID } from "node:crypto";
+import { mkdir, readFile, writeFile } from "node:fs/promises";
+import path from "node:path";
+
+import { Kafka, logLevel } from "kafkajs";
+
+import {
+  buildHwlabKafkaProducerMessage,
+  DEFAULT_AGENTRUN_DEBUG_EVENT_TOPIC,
+  DEFAULT_HWLAB_DEBUG_EVENT_TOPIC,
+  projectAgentRunKafkaMessageToHwlabDebugEvent,
+  queryKafkaEventStream
+} from "../../../internal/cloud/kafka-event-bridge.ts";
+
+const CLI_NAME = "hwlab-cli";
+const VERSION = "0.3.0-kafka-debug";
+const DEFAULT_GROUP_PREFIX = "hwlab-v03-workbench-isolated-debug";
+const DEFAULT_LIMIT = 500;
+const DEFAULT_TIMEOUT_MS = 5000;
+
+type JsonRecord = Record<string, any>;
+type EnvLike = Record<string, string | undefined>;
+type ParsedArgs = Record<string, unknown> & { _: string[] };
+
+type KafkaCliOptions = {
+  cwd?: string;
+  env?: EnvLike;
+  now?: () => string;
+  readKafka?: (input: Record<string, any>) => Promise<Record<string, any>>;
+  createProducer?: (input: { env: EnvLike; clientId: string }) => Promise<any> | any;
+};
+
+export async function mainKafkaCli(argv = process.argv.slice(3), options: KafkaCliOptions = {}) {
+  const result = await runKafkaCli(argv, options);
+  const json = argv.includes("--json");
+  process.stdout.write(json ? `${JSON.stringify(result.payload, null, 2)}\n` : `${renderKafkaCliText(result.payload)}\n`);
+  process.exitCode = result.exitCode;
+}
+
+export async function runKafkaCli(argv: string[], options: KafkaCliOptions = {}) {
+  const now = options.now ?? (() => new Date().toISOString());
+  try {
+    const parsed = parseOptions(argv);
+    const command = parsed._[0] || "help";
+    const resource = parsed._[1] || "";
+    if (["help", "--help", "-h"].includes(command) || parsed.help === true) {
+      return result(0, kafkaHelp(), now);
+    }
+    if (command !== "regenerate" || resource !== "hwlab") {
+      throw cliError("unsupported_kafka_command", "supported command: kafka regenerate hwlab", { command, resource });
+    }
+    const payload = await regenerateHwlabDebugEvents(parsed, {
+      cwd: options.cwd ?? process.cwd(),
+      env: options.env ?? process.env,
+      now,
+      readKafka: options.readKafka ?? defaultKafkaReader,
+      createProducer: options.createProducer ?? defaultProducerFactory
+    });
+    return result(0, payload, now);
+  } catch (error) {
+    return result(1, failure(error), now);
+  }
+}
+
+export async function regenerateHwlabDebugEvents(parsed: ParsedArgs, dependencies: Required<KafkaCliOptions>) {
+  const sessionId = requiredSessionId(parsed.sessionId);
+  const traceId = optionalTraceId(parsed.traceId);
+  const sourceMode = enumValue(parsed.from ?? "kafka", "from", ["kafka", "jsonl"]);
+  const inputTopicResolution = resolveConfig(parsed.inputTopic, undefined, DEFAULT_AGENTRUN_DEBUG_EVENT_TOPIC, "--input-topic", "contract-default");
+  const outputTopicResolution = resolveConfig(parsed.outputTopic, dependencies.env.HWLAB_KAFKA_HWLAB_DEBUG_EVENT_TOPIC, DEFAULT_HWLAB_DEBUG_EVENT_TOPIC, "--output-topic", "env:HWLAB_KAFKA_HWLAB_DEBUG_EVENT_TOPIC");
+  const groupPrefixResolution = resolveConfig(parsed.groupPrefix, dependencies.env.HWLAB_KAFKA_HWLAB_DEBUG_GROUP_PREFIX, DEFAULT_GROUP_PREFIX, "--group-prefix", "env:HWLAB_KAFKA_HWLAB_DEBUG_GROUP_PREFIX");
+  const inputTopic = inputTopicResolution.value;
+  const outputTopic = outputTopicResolution.value;
+  assertDebugTopic(outputTopic);
+  const limit = boundedInteger(parsed.limit, DEFAULT_LIMIT, 1, 5000, "limit");
+  const timeoutMs = boundedInteger(parsed.timeoutMs, DEFAULT_TIMEOUT_MS, 250, 60000, "timeoutMs");
+  const expectedCount = optionalPositiveInteger(parsed.expectCount, "expectCount");
+  const readLimit = expectedCount === undefined ? limit : Math.min(5000, expectedCount + 1);
+  const groupPrefix = groupPrefixResolution.value;
+  assertDebugGroup(groupPrefix);
+  const shouldPublish = parsed.noPublish === true ? false : parsed.publish === true ? true : sourceMode === "kafka";
+
+  const readResult = sourceMode === "jsonl"
+    ? await readJsonlInput(requiredText(parsed.jsonlFile, "jsonlFile"), dependencies.cwd, inputTopic)
+    : await dependencies.readKafka({
+      env: dependencies.env,
+      stream: "agentrun",
+      topic: inputTopic,
+      sessionId,
+      traceId: traceId || null,
+      limit: readLimit,
+      timeoutMs,
+      fromBeginning: parsed.fromEnd !== true,
+      groupIdPrefix: groupPrefix
+    });
+  const records = Array.isArray(readResult.events) ? readResult.events : [];
+  const mapped = mapAgentRunRecordsToHwlabDebugEvents(records, {
+    sessionId,
+    traceId,
+    expectedCount,
+    producedAt: dependencies.now()
+  });
+
+  const stateId = `hwlab-debug-${Date.now().toString(36)}-${randomUUID().slice(0, 8)}`;
+  const artifactPath = path.resolve(
+    dependencies.cwd,
+    text(parsed.outputJsonl) || path.join(".state", "hwlab-cli", "kafka-debug", stateId, "hwlab-events.jsonl")
+  );
+  const artifactRows = mapped.events.map((envelope) => {
+    const message = buildHwlabKafkaProducerMessage(envelope);
+    return {
+      topic: outputTopic,
+      partition: null,
+      offset: null,
+      key: message.key,
+      value: envelope,
+      headers: message.headers
+    };
+  });
+  const artifactText = artifactRows.map((row) => JSON.stringify(row)).join("\n") + "\n";
+  await mkdir(path.dirname(artifactPath), { recursive: true });
+  await writeFile(artifactPath, artifactText, "utf8");
+
+  let publishedCount = 0;
+  let publishMetadata: unknown[] = [];
+  if (shouldPublish) {
+    const producer = await dependencies.createProducer({ env: dependencies.env, clientId: `${groupPrefix}-producer` });
+    try {
+      await producer.connect?.();
+      publishMetadata = await producer.send({
+        topic: outputTopic,
+        messages: mapped.events.map(buildHwlabKafkaProducerMessage)
+      });
+      publishedCount = mapped.events.length;
+    } catch (error) {
+      throw cliError("hwlab_debug_publish_failed", "failed to publish regenerated HWLAB events to the isolated debug topic", {
+        topic: outputTopic,
+        mappedCount: mapped.events.length,
+        artifactPath,
+        causeCode: (error as any)?.code ?? null,
+        causeMessage: error instanceof Error ? error.message : String(error)
+      });
+    } finally {
+      if (typeof producer.disconnect === "function") await producer.disconnect().catch(() => undefined);
+    }
+  }
+
+  const first = mapped.events[0];
+  const last = mapped.events.at(-1);
+  const sourceFile = text(readResult.sourceFile);
+  const traceArgument = traceId ? ` --trace-id ${traceId}` : "";
+  const baseCommand = sourceMode === "jsonl"
+    ? `hwlab-cli kafka regenerate hwlab --from jsonl --session-id ${sessionId}${traceArgument} --jsonl-file ${shellArg(sourceFile || String(parsed.jsonlFile))}`
+    : `hwlab-cli kafka regenerate hwlab --from kafka --session-id ${sessionId}${traceArgument} --input-topic ${inputTopic}`;
+  const nextCommand = shouldPublish
+    ? `${baseCommand} --no-publish --output-topic ${outputTopic} --expect-count ${mapped.events.length} --json`
+    : `${baseCommand} --publish --output-topic ${outputTopic} --expect-count ${mapped.events.length} --json`;
+  return {
+    ok: true,
+    action: "kafka.regenerate.hwlab",
+    status: "succeeded",
+    sourceMode,
+    config: {
+      inputTopic: inputTopicResolution,
+      outputTopic: outputTopicResolution,
+      groupPrefix: groupPrefixResolution
+    },
+    input: {
+      topic: inputTopic,
+      groupId: readResult.groupId ?? null,
+      readCount: records.length,
+      matchedCount: mapped.events.length,
+      sessionId,
+      traceId: traceId || null
+    },
+    output: {
+      schema: DEFAULT_HWLAB_DEBUG_EVENT_TOPIC,
+      topic: outputTopic,
+      count: mapped.events.length,
+      published: shouldPublish,
+      publishedCount,
+      metadataCount: Array.isArray(publishMetadata) ? publishMetadata.length : 0,
+      artifact: {
+        path: artifactPath,
+        bytes: Buffer.byteLength(artifactText),
+        sha256: `sha256:${sha256(artifactText)}`
+      }
+    },
+    validation: {
+      expectedCount: expectedCount ?? null,
+      oneToOne: mapped.inputCount === mapped.events.length,
+      orderPreserved: mapped.orderPreserved,
+      lineagePreserved: mapped.lineagePreserved,
+      firstSourceSeq: first?.debugLineage?.sourceSeq ?? null,
+      lastSourceSeq: last?.debugLineage?.sourceSeq ?? null,
+      inputKinds: [...new Set(mapped.inputKinds)]
+    },
+    runtimeDependencies: {
+      cloudApi: false,
+      database: false,
+      transactionalProjector: false,
+      kafka: sourceMode === "kafka" || shouldPublish
+    },
+    next: {
+      command: nextCommand,
+      reason: shouldPublish
+        ? "用同一源码映射做一次无 Kafka 写入复验；随后 Workbench 调试模式按 traceId 消费独立 debug topic。"
+        : "离线映射已固化为 JSONL；确认内容后可显式 --publish 写入独立 debug topic。"
+    },
+    valuesPrinted: false
+  };
+}
+
+export function mapAgentRunRecordsToHwlabDebugEvents(records: JsonRecord[], options: { sessionId: string; traceId?: string; expectedCount?: number; producedAt?: string }) {
+  const matchingRecords = records.filter((record) => recordMatches(record, options.sessionId, options.traceId));
+  if (matchingRecords.length === 0) {
+    throw cliError("agentrun_debug_events_missing", "no AgentRun events matched the requested sessionId/traceId", {
+      sessionId: options.sessionId,
+      traceId: options.traceId || null,
+      readCount: records.length
+    });
+  }
+  if (options.expectedCount !== undefined && matchingRecords.length !== options.expectedCount) {
+    throw cliError("agentrun_debug_event_count_mismatch", "matched AgentRun event count does not equal --expect-count", {
+      expectedCount: options.expectedCount,
+      actualCount: matchingRecords.length
+    });
+  }
+  const events = [];
+  const inputKinds = [];
+  let orderPreserved = true;
+  let lineagePreserved = true;
+  for (const [index, record] of matchingRecords.entries()) {
+    const kafkaMessage = kafkaMessageFromRecord(record, index);
+    const projected = projectAgentRunKafkaMessageToHwlabDebugEvent(kafkaMessage, { producedAt: options.producedAt });
+    if (!projected.ok) {
+      throw cliError(projected.error?.code || "hwlab_debug_projection_failed", projected.error?.message || "AgentRun debug projection failed", {
+        index,
+        topic: kafkaMessage.topic,
+        partition: kafkaMessage.partition,
+        offset: kafkaMessage.message.offset
+      });
+    }
+    const input = valueFromRecord(record);
+    const sourceSeq = Number(input.sourceSeq ?? input.event?.seq);
+    orderPreserved &&= projected.envelope.debugLineage?.sourceSeq === sourceSeq;
+    lineagePreserved &&= projected.envelope.debugLineage?.inputTraceId === text(input.traceId ?? input.event?.payload?.traceId)
+      && sessionCandidates(input).includes(options.sessionId)
+      && projected.envelope.sourceEvent?.sha256 === kafkaMessage.inputSha256;
+    events.push(projected.envelope);
+    inputKinds.push(projected.inputKind);
+  }
+  if (events.length !== matchingRecords.length || !orderPreserved || !lineagePreserved) {
+    throw cliError("hwlab_debug_mapping_invariant_failed", "AgentRun -> HWLAB debug mapping did not preserve one-to-one order and lineage", {
+      inputCount: matchingRecords.length,
+      outputCount: events.length,
+      orderPreserved,
+      lineagePreserved
+    });
+  }
+  return { events, inputKinds, inputCount: matchingRecords.length, orderPreserved, lineagePreserved };
+}
+
+function kafkaHelp() {
+  return {
+    ok: true,
+    action: "kafka.help",
+    status: "succeeded",
+    commands: [
+      "hwlab-cli kafka regenerate hwlab --from kafka --session-id ses_... [--trace-id trc_...] [--input-topic agentrun.event.debug.v1] [--expect-count 35] [--json]",
+      "hwlab-cli kafka regenerate hwlab --from jsonl --session-id ses_... --jsonl-file agentrun-events.jsonl --no-publish [--output-jsonl hwlab-events.jsonl] [--json]"
+    ],
+    defaults: {
+      inputTopic: DEFAULT_AGENTRUN_DEBUG_EVENT_TOPIC,
+      outputTopic: DEFAULT_HWLAB_DEBUG_EVENT_TOPIC,
+      groupPrefix: DEFAULT_GROUP_PREFIX,
+      kafkaInputPublishes: true,
+      jsonlInputPublishes: false
+    },
+    boundaries: {
+      productTopicAllowed: false,
+      cloudApi: false,
+      database: false,
+      transactionalProjector: false,
+      reconstructionIdentityFabricated: false
+    },
+    next: {
+      command: "hwlab-cli kafka regenerate hwlab --from jsonl --session-id ses_... --jsonl-file agentrun-events.jsonl --no-publish --json",
+      reason: "先用完全离线 JSONL 验证一对一顺序映射，再决定是否发布到独立 debug topic。"
+    },
+    valuesPrinted: false
+  };
+}
+
+async function defaultKafkaReader(input: Record<string, any>) {
+  return queryKafkaEventStream({
+    ...input,
+    kafkaFactory(config: { brokers: string[]; clientId: string }) { return boundedKafka(config); }
+  });
+}
+
+async function defaultProducerFactory({ env, clientId }: { env: EnvLike; clientId: string }) {
+  const brokers = csv(env.HWLAB_KAFKA_BOOTSTRAP_SERVERS);
+  if (brokers.length === 0) throw cliError("kafka_brokers_missing", "HWLAB_KAFKA_BOOTSTRAP_SERVERS is required for Kafka publish", { field: "HWLAB_KAFKA_BOOTSTRAP_SERVERS" });
+  return boundedKafka({ clientId, brokers }).producer({ allowAutoTopicCreation: false });
+}
+
+function boundedKafka({ clientId, brokers }: { clientId: string; brokers: string[] }) {
+  return new Kafka({
+    clientId,
+    brokers,
+    logLevel: logLevel.NOTHING,
+    connectionTimeout: 5000,
+    requestTimeout: 10000,
+    retry: { retries: 1, maxRetryTime: 10000 }
+  });
+}
+
+async function readJsonlInput(fileValue: string, cwd: string, defaultTopic: string) {
+  const file = path.resolve(cwd, fileValue);
+  const content = await readFile(file, "utf8");
+  const events = [];
+  for (const [index, line] of content.split(/\r?\n/u).entries()) {
+    if (!line.trim()) continue;
+    let value;
+    try { value = JSON.parse(line); } catch (error) {
+      throw cliError("jsonl_line_invalid", "input JSONL contains invalid JSON", { file, line: index + 1, message: error instanceof Error ? error.message : String(error) });
+    }
+    events.push(normalizeRecord(value, defaultTopic));
+  }
+  return { ok: true, topic: defaultTopic, groupId: null, events, sourceFile: file };
+}
+
+function normalizeRecord(record: any, defaultTopic: string) {
+  if (!record || typeof record !== "object" || Array.isArray(record)) throw cliError("jsonl_record_invalid", "each JSONL row must be an object");
+  if (Object.hasOwn(record, "value")) return { ...record, topic: text(record.topic) || defaultTopic };
+  return { topic: defaultTopic, partition: null, offset: null, key: null, value: record };
+}
+
+function kafkaMessageFromRecord(record: JsonRecord, index: number) {
+  const value = valueFromRecord(record);
+  const valueText = typeof record.value === "string" ? record.value : JSON.stringify(value);
+  return {
+    topic: text(record.topic) || DEFAULT_AGENTRUN_DEBUG_EVENT_TOPIC,
+    partition: nullableInteger(record.partition),
+    inputSha256: text(record.valueSha256) || sha256(valueText),
+    message: {
+      offset: record.offset === null || record.offset === undefined ? null : String(record.offset),
+      key: record.key === null || record.key === undefined ? null : Buffer.from(String(record.key)),
+      value: Buffer.from(valueText),
+      timestamp: record.timestamp === null || record.timestamp === undefined ? null : String(record.timestamp),
+      headers: record.headers ?? undefined,
+      debugIndex: index
+    }
+  };
+}
+
+function valueFromRecord(record: JsonRecord) {
+  const candidate = Object.hasOwn(record, "value") ? record.value : record;
+  if (typeof candidate === "string") {
+    try { return JSON.parse(candidate); } catch { throw cliError("jsonl_value_invalid", "JSONL transport value must contain a JSON object"); }
+  }
+  if (!candidate || typeof candidate !== "object" || Array.isArray(candidate)) throw cliError("jsonl_value_invalid", "JSONL transport value must be a JSON object");
+  return candidate;
+}
+
+function recordMatches(record: JsonRecord, sessionId: string, traceId?: string) {
+  const value = valueFromRecord(record);
+  if (!sessionCandidates(value).includes(sessionId)) return false;
+  return !traceId || traceCandidates(value).includes(traceId);
+}
+
+function sessionCandidates(value: any) {
+  return uniqueText([
+    value.sessionId,
+    value.hwlabSessionId,
+    value.run?.sessionId,
+    value.run?.hwlabSessionId,
+    value.event?.payload?.sessionId,
+    value.event?.payload?.hwlabSessionId
+  ]);
+}
+
+function traceCandidates(value: any) {
+  return uniqueText([value.traceId, value.run?.traceId, value.command?.traceId, value.event?.payload?.traceId, value.event?.payload?.hwlabTraceId]);
+}
+
+function parseOptions(argv: string[]): ParsedArgs {
+  const out: ParsedArgs = { _: [] };
+  for (let index = 0; index < argv.length; index += 1) {
+    const item = argv[index] ?? "";
+    if (!item.startsWith("--")) { out._.push(item); continue; }
+    const eq = item.indexOf("=");
+    const rawKey = eq >= 0 ? item.slice(2, eq) : item.slice(2);
+    const key = rawKey.replace(/-([a-z])/gu, (_, character) => String(character).toUpperCase());
+    if (eq >= 0) { out[key] = item.slice(eq + 1); continue; }
+    const next = argv[index + 1];
+    if (next && !next.startsWith("--")) { out[key] = next; index += 1; }
+    else out[key] = true;
+  }
+  return out;
+}
+
+function renderKafkaCliText(payload: Record<string, any>) {
+  if (payload.ok === false) return `failed action=${payload.action} code=${payload.error?.code} message=${JSON.stringify(payload.error?.message)} next=${JSON.stringify(payload.next?.command)}`;
+  const validation = payload.validation ?? {};
+  return [
+    "ok",
+    `action=${payload.action}`,
+    payload.input ? `input=${payload.input.matchedCount}/${payload.input.readCount}` : null,
+    payload.output ? `output=${payload.output.count}` : null,
+    payload.output ? `published=${payload.output.publishedCount}` : null,
+    validation.orderPreserved !== undefined ? `order=${validation.orderPreserved ? "preserved" : "failed"}` : null,
+    payload.output?.topic ? `topic=${payload.output.topic}` : null,
+    payload.config?.outputTopic?.source ? `topicSource=${payload.config.outputTopic.source}` : null,
+    payload.config?.groupPrefix?.source ? `groupSource=${payload.config.groupPrefix.source}` : null,
+    payload.output?.artifact?.path ? `artifact=${shellArg(payload.output.artifact.path)}` : null,
+    payload.next?.command ? `next=${JSON.stringify(payload.next.command)}` : null
+  ].filter(Boolean).join(" ");
+}
+
+function result(exitCode: number, payload: Record<string, any>, now: () => string) {
+  return { exitCode, payload: { generatedAt: now(), cli: CLI_NAME, version: VERSION, ...payload } };
+}
+
+function failure(error: any) {
+  return {
+    ok: false,
+    action: "kafka.regenerate.hwlab",
+    status: "failed",
+    error: { code: error?.code ?? "hwlab_kafka_debug_cli_failed", message: error instanceof Error ? error.message : String(error), details: error?.details ?? undefined },
+    next: { command: "hwlab-cli kafka help --json", reason: "检查独立 debug topic、sessionId、JSONL 合同和 Kafka YAML 注入后重试。" },
+    valuesPrinted: false
+  };
+}
+
+function assertDebugTopic(topic: string) {
+  if (topic === "hwlab.event.v1" || !/(?:^|[.-])debug(?:[.-]|$)/u.test(topic)) {
+    throw cliError("product_topic_forbidden", "output topic must be an isolated debug topic; hwlab.event.v1 is forbidden", { topic });
+  }
+}
+
+function assertDebugGroup(groupPrefix: string) {
+  if (!/(?:^|[.-])debug(?:[.-]|$)/u.test(groupPrefix)) throw cliError("debug_group_required", "Kafka consumer group prefix must identify an isolated debug group", { groupPrefix });
+}
+
+function requiredSessionId(value: unknown) {
+  const result = requiredText(value, "sessionId");
+  if (!/^ses_[A-Za-z0-9_.:-]+$/u.test(result)) throw cliError("invalid_session_id", "sessionId must start with ses_", { sessionId: result });
+  return result;
+}
+
+function optionalTraceId(value: unknown) {
+  const result = text(value);
+  if (result && !/^trc_[A-Za-z0-9_.:-]+$/u.test(result)) throw cliError("invalid_trace_id", "traceId must start with trc_", { traceId: result });
+  return result;
+}
+
+function enumValue(value: unknown, field: string, allowed: string[]) {
+  const result = text(value);
+  if (!allowed.includes(result)) throw cliError("invalid_option", `${field} must be one of: ${allowed.join(", ")}`, { field, value: result });
+  return result;
+}
+
+function resolveConfig(cliValue: unknown, envValue: unknown, fallback: string, cliSource: string, envSource: string) {
+  const explicit = text(cliValue);
+  if (explicit) return { value: explicit, source: cliSource };
+  const injected = text(envValue);
+  if (injected) return { value: injected, source: envSource };
+  return { value: fallback, source: "contract-default" };
+}
+
+function optionalPositiveInteger(value: unknown, field: string) {
+  if (value === undefined) return undefined;
+  return boundedInteger(value, 0, 1, 5000, field);
+}
+
+function boundedInteger(value: unknown, fallback: number, minimum: number, maximum: number, field: string) {
+  const parsed = value === undefined ? fallback : Number(value);
+  if (!Number.isInteger(parsed) || parsed < minimum || parsed > maximum) throw cliError("invalid_integer", `${field} must be an integer between ${minimum} and ${maximum}`, { field, value });
+  return parsed;
+}
+
+function nullableInteger(value: unknown) {
+  if (value === null || value === undefined || value === "") return null;
+  const parsed = Number(value);
+  if (!Number.isInteger(parsed) || parsed < 0) throw cliError("invalid_partition", "partition must be a non-negative integer or null", { value });
+  return parsed;
+}
+
+function requiredText(value: unknown, field: string) {
+  const result = text(value);
+  if (!result) throw cliError("missing_required_value", `${field} is required`, { field });
+  return result;
+}
+
+function cliError(code: string, message: string, details: Record<string, unknown> = {}) {
+  return Object.assign(new Error(message), { code, details });
+}
+
+function uniqueText(values: unknown[]) { return [...new Set(values.map(text).filter(Boolean))]; }
+function text(value: unknown) { return String(value ?? "").trim(); }
+function csv(value: unknown) { return String(value ?? "").split(",").map((item) => item.trim()).filter(Boolean); }
+function sha256(value: string) { return createHash("sha256").update(value).digest("hex"); }
+function shellArg(value: unknown) { const result = String(value ?? ""); return /^[A-Za-z0-9_./:@-]+$/u.test(result) ? result : `'${result.replace(/'/gu, `'"'"'`)}'`; }