fix(sessions): preserve lineage metadata in JSON

src/commands/sessions-table.ts

@@ -14,6 +14,19 @@ export type SessionDisplayRow = {
   updatedAt: number | null;
   ageMs: number | null;
   sessionId?: string;
+  sessionFile?: string;
+  spawnedBy?: string;
+  spawnedWorkspaceDir?: string;
+  spawnedCwd?: string;
+  parentSessionKey?: string;
+  forkedFromParent?: boolean;
+  spawnDepth?: number;
+  subagentRole?: SessionEntry["subagentRole"];
+  subagentControlScope?: SessionEntry["subagentControlScope"];
+  sessionStartedAt?: number;
+  lastInteractionAt?: number;
+  label?: string;
+  status?: SessionEntry["status"];
   systemSent?: boolean;
   abortedLastRun?: boolean;
   thinkingLevel?: string;
@@ -47,6 +60,19 @@ export function toSessionDisplayRow(key: string, entry: SessionEntry): SessionDi
     updatedAt,
     ageMs: updatedAt ? Date.now() - updatedAt : null,
     sessionId: entry?.sessionId,
+    sessionFile: entry?.sessionFile,
+    spawnedBy: entry?.spawnedBy,
+    spawnedWorkspaceDir: entry?.spawnedWorkspaceDir,
+    spawnedCwd: entry?.spawnedCwd,
+    parentSessionKey: entry?.parentSessionKey,
+    forkedFromParent: entry?.forkedFromParent,
+    spawnDepth: entry?.spawnDepth,
+    subagentRole: entry?.subagentRole,
+    subagentControlScope: entry?.subagentControlScope,
+    sessionStartedAt: entry?.sessionStartedAt,
+    lastInteractionAt: entry?.lastInteractionAt,
+    label: entry?.label,
+    status: entry?.status,
     systemSent: entry?.systemSent,
     abortedLastRun: entry?.abortedLastRun,
     thinkingLevel: entry?.thinkingLevel,

src/commands/sessions.test.ts

@@ -181,6 +181,65 @@ describe("sessionsCommand", () => {
     expect(group?.totalTokensFresh).toBe(false);
   });
 
+  it("exports subagent lineage metadata in JSON output", async () => {
+    const store = writeStore({
+      "agent:child:main": {
+        sessionId: "child-session",
+        updatedAt: Date.now() - 10 * 60_000,
+        sessionFile: "/tmp/openclaw/child-session.jsonl",
+        spawnedBy: "agent:main:main",
+        spawnedWorkspaceDir: "/workspace/project",
+        spawnedCwd: "/workspace/project/tasks",
+        parentSessionKey: "agent:main:main",
+        forkedFromParent: true,
+        spawnDepth: 1,
+        subagentRole: "leaf",
+        subagentControlScope: "none",
+        sessionStartedAt: Date.now() - 20 * 60_000,
+        lastInteractionAt: Date.now() - 5 * 60_000,
+        label: "research helper",
+        status: "done",
+        model: "test:opus",
+      },
+    });
+
+    const payload = await runSessionsJson<{
+      sessions?: Array<{
+        key: string;
+        sessionFile?: string;
+        spawnedBy?: string;
+        spawnedWorkspaceDir?: string;
+        spawnedCwd?: string;
+        parentSessionKey?: string;
+        forkedFromParent?: boolean;
+        spawnDepth?: number;
+        subagentRole?: string;
+        subagentControlScope?: string;
+        sessionStartedAt?: number;
+        lastInteractionAt?: number;
+        label?: string;
+        status?: string;
+      }>;
+    }>(sessionsCommand, store);
+
+    const child = payload.sessions?.find((row) => row.key === "agent:child:main");
+    expect(child).toMatchObject({
+      sessionFile: "/tmp/openclaw/child-session.jsonl",
+      spawnedBy: "agent:main:main",
+      spawnedWorkspaceDir: "/workspace/project",
+      spawnedCwd: "/workspace/project/tasks",
+      parentSessionKey: "agent:main:main",
+      forkedFromParent: true,
+      spawnDepth: 1,
+      subagentRole: "leaf",
+      subagentControlScope: "none",
+      sessionStartedAt: Date.now() - 20 * 60_000,
+      lastInteractionAt: Date.now() - 5 * 60_000,
+      label: "research helper",
+      status: "done",
+    });
+  });
+
   it("shows preserved stale totals in JSON output", async () => {
     const store = writeStore({
       main: {