diff --git a/libs/tiptap-editor/src/__tests__/runnable-info.test.ts b/libs/tiptap-editor/src/__tests__/runnable-info.test.ts
new file mode 100644
index 0000000..b49f704
--- /dev/null
+++ b/libs/tiptap-editor/src/__tests__/runnable-info.test.ts
@@ -0,0 +1,48 @@
+import { describe, expect, it } from 'vitest';
+import { buildRunnableInfo } from '../slash-command';
+
+/**
+ * buildRunnableInfo 测试:把弹框收集的配置转成 fence info string。
+ *
+ * dirty=false(全默认) → 'python runnable'(省略 JSON)
+ * dirty=true → 'python runnable {"timeout_secs":N,"memory_mb":M,"allow_network":B}'
+ * JSON 字段顺序固定:timeout → memory → network
+ */
+
+describe('buildRunnableInfo', () => {
+  const base = {
+    lang: 'python',
+    timeoutSecs: 5,
+    memoryMb: 256,
+    allowNetwork: false,
+  } as const;
+
+  describe('dirty=false(全默认,省略 JSON)', () => {
+    it('python → "python runnable"', () => {
+      expect(buildRunnableInfo({ ...base, dirty: false })).toBe('python runnable');
+    });
+    it('node → "node runnable"', () => {
+      expect(buildRunnableInfo({ ...base, lang: 'node', dirty: false })).toBe('node runnable');
+    });
+  });
+
+  describe('dirty=true(写 JSON)', () => {
+    it('改了 timeout,JSON 含全部 3 项', () => {
+      expect(buildRunnableInfo({ ...base, timeoutSecs: 10, dirty: true })).toBe(
+        'python runnable {"timeout_secs":10,"memory_mb":256,"allow_network":false}',
+      );
+    });
+    it('node + 改了 allow_network', () => {
+      expect(buildRunnableInfo({ ...base, lang: 'node', allowNetwork: true, dirty: true })).toBe(
+        'node runnable {"timeout_secs":5,"memory_mb":256,"allow_network":true}',
+      );
+    });
+    it('JSON 字段顺序固定(timeout→memory→network)', () => {
+      const out = buildRunnableInfo({ ...base, dirty: true });
+      const jsonStart = out.indexOf('{');
+      const jsonEnd = out.lastIndexOf('}') + 1;
+      const keys = Object.keys(JSON.parse(out.slice(jsonStart, jsonEnd)));
+      expect(keys).toEqual(['timeout_secs', 'memory_mb', 'allow_network']);
+    });
+  });
+});
diff --git a/libs/tiptap-editor/src/slash-command.ts b/libs/tiptap-editor/src/slash-command.ts
index 0afee58..8e82018 100644
--- a/libs/tiptap-editor/src/slash-command.ts
+++ b/libs/tiptap-editor/src/slash-command.ts
@@ -363,3 +363,34 @@ function createPopup(props: SuggestionProps<CommandItem>): SlashPopup {
     },
   };
 }
+
+/** buildRunnableInfo 的输入配置。 */
+export interface RunnableInfoOpts {
+  /** 语言名（python / node）。 */
+  lang: string;
+  /** 超时秒数。 */
+  timeoutSecs: number;
+  /** 内存上限（MB）。 */
+  memoryMb: number;
+  /** 是否允许网络。 */
+  allowNetwork: boolean;
+  /** 作者是否改动过任一 overrides 字段；false 则省略 JSON。 */
+  dirty: boolean;
+}
+
+/**
+ * 把弹框收集的配置转成 markdown fence 的 info string。
+ *
+ * - dirty=false → `${lang} runnable`（省略 JSON，最小形态）
+ * - dirty=true  → `${lang} runnable {"timeout_secs":N,"memory_mb":M,"allow_network":B}`
+ *
+ * JSON 字段顺序固定（timeout → memory → network），由显式构造保证（不依赖对象插入顺序）。
+ * 到达此函数时值必然合法（弹框「插入」按钮在非法值时 disabled）。
+ */
+export function buildRunnableInfo(opts: RunnableInfoOpts): string {
+  const prefix = `${opts.lang} runnable`;
+  if (!opts.dirty) return prefix;
+  // 显式拼字符串，保证字段顺序固定（timeout → memory → network），不依赖对象键序。
+  const json = `{"timeout_secs":${opts.timeoutSecs},"memory_mb":${opts.memoryMb},"allow_network":${opts.allowNetwork}}`;
+  return `${prefix} ${json}`;
+}