diff --git a/config/aipods/artificer.yaml b/config/aipods/artificer.yaml
index 33dc9e4..5cc0d56 100644
--- a/config/aipods/artificer.yaml
+++ b/config/aipods/artificer.yaml
@@ -124,7 +124,11 @@ spec:
     lfs: false
   payloadDefaults:
     title: Artificer distributed development task
-    prompt: Follow the bundled dad-dev and UniDesk skills. Report progress to the relevant GitHub issue before risky or long operations.
+    prompt: |-
+      你就是当前已派发任务的 Artificer 执行者，必须直接在 primary workspace 完成被分配的调查、修改、测试和 PR。
+      禁止通过 `agentrun create`、`agentrun apply`、`agentrun dispatch`、Code Queue 或任何等价入口创建或派发另一个 Artificer 来完成当前任务。
+      允许只读查询 AgentRun task、session 和 run 状态；只读查询不属于二次派单。
+      遵循随资源包提供的 dad-dev 与 UniDesk skills；执行高风险或长时间操作前，先向相关 GitHub issue 报告进展。
   references: []
   metadata:
     aipod: Artificer
diff --git a/src/common/aipod-specs.ts b/src/common/aipod-specs.ts
index c0e4d64..44b69ea 100644
--- a/src/common/aipod-specs.ts
+++ b/src/common/aipod-specs.ts
@@ -136,7 +136,9 @@ export function renderAipodSpec(record: AipodSpecRecord, input: RenderAipodInput
   const metadata = mergeRecords(spec.metadata, input.metadata, { aipod: record.name, aipodSpecHash: record.specHash, aipodImageRef: imageRef });
   const inputPayload = input.payload === undefined ? undefined : validateAipodPayload(input.payload, "aipodRender.payload");
   const payload = mergeRecords(spec.payloadDefaults, inputPayload);
-  if (typeof input.prompt === "string" && input.prompt.trim().length > 0) payload.prompt = input.prompt;
+  const defaultPrompt = nonEmptyText(spec.payloadDefaults?.prompt);
+  const userPrompt = nonEmptyText(input.prompt) ?? nonEmptyText(inputPayload?.prompt);
+  if (userPrompt !== null) payload.prompt = defaultPrompt === null ? userPrompt : `${defaultPrompt}\n\n${userPrompt}`;
   applyEffectiveModelPayload(payload, effectiveModel);
   const sessionRef = renderSessionRef(spec.sessionRef ?? null, input, record, payload);
   const queueTask = validateCreateQueueTask({
@@ -443,6 +445,10 @@ function stringValue(value: unknown): string | null {
   return typeof value === "string" && value.trim().length > 0 ? value.trim() : null;
 }
 
+function nonEmptyText(value: unknown): string | null {
+  return typeof value === "string" && value.trim().length > 0 ? value : null;
+}
+
 function isJsonRecord(value: unknown): value is JsonRecord {
   return typeof value === "object" && value !== null && !Array.isArray(value);
 }
diff --git a/src/selftest/cases/81-artificer-nonrecursive-prompt.ts b/src/selftest/cases/81-artificer-nonrecursive-prompt.ts
new file mode 100644
index 0000000..6027bbf
--- /dev/null
+++ b/src/selftest/cases/81-artificer-nonrecursive-prompt.ts
@@ -0,0 +1,34 @@
+import assert from "node:assert/strict";
+import { readFile } from "node:fs/promises";
+import path from "node:path";
+import { parseAipodSpecYaml, renderAipodSpec } from "../../common/aipod-specs.js";
+import type { JsonRecord } from "../../common/types.js";
+import type { SelfTestCase } from "../harness.js";
+
+const selfTest: SelfTestCase = async (context) => {
+  const source = path.join(context.root, "config", "aipods", "artificer.yaml");
+  const spec = parseAipodSpecYaml(await readFile(source, "utf8"), source);
+  const userPrompt = "调查 Monitor issue #1888 的迁移失败。\n保留这段用户业务提示的完整内容。";
+  const rendered = renderAipodSpec({
+    name: spec.metadata.name,
+    spec,
+    specHash: "selftest-artificer-nonrecursive-prompt",
+    source,
+    createdAt: "2026-01-01T00:00:00.000Z",
+    updatedAt: "2026-01-01T00:00:00.000Z",
+  }, { prompt: userPrompt });
+  const effectivePrompt = String(((rendered.queueTask as JsonRecord).payload as JsonRecord).prompt);
+
+  assert.match(effectivePrompt, /当前已派发任务的 Artificer 执行者/u);
+  assert.match(effectivePrompt, /agentrun create/u);
+  assert.match(effectivePrompt, /agentrun apply/u);
+  assert.match(effectivePrompt, /agentrun dispatch/u);
+  assert.match(effectivePrompt, /Code Queue/u);
+  assert.match(effectivePrompt, /只读查询 AgentRun task、session 和 run 状态/u);
+  assert.equal(effectivePrompt.endsWith(userPrompt), true, "rendered prompt must preserve the complete user business prompt");
+  assert.equal(effectivePrompt.split(userPrompt).length - 1, 1, "rendered prompt must include the user business prompt exactly once");
+
+  return { name: "artificer-nonrecursive-prompt", tests: ["artificer-yaml-nonrecursive-prompt-render", "artificer-user-prompt-preserved"] };
+};
+
+export default selfTest;