diff --git a/apps/presentation/dashboard/smoke/assets/team-source-chain/before.png b/apps/presentation/dashboard/smoke/assets/team-source-chain/before.png
new file mode 100644
index 0000000000..c7da1c7fff
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diff --git a/apps/presentation/dashboard/smoke/assets/team-source-chain/withdrawn-desktop.png b/apps/presentation/dashboard/smoke/assets/team-source-chain/withdrawn-desktop.png
new file mode 100644
index 0000000000..6ff5fedd50
Binary files /dev/null and b/apps/presentation/dashboard/smoke/assets/team-source-chain/withdrawn-desktop.png differ
diff --git a/apps/presentation/dashboard/smoke/assets/team-source-chain/withdrawn-mobile.png b/apps/presentation/dashboard/smoke/assets/team-source-chain/withdrawn-mobile.png
new file mode 100644
index 0000000000..e6fe75c692
Binary files /dev/null and b/apps/presentation/dashboard/smoke/assets/team-source-chain/withdrawn-mobile.png differ
diff --git a/apps/presentation/dashboard/smoke/team-adoption-http-fixture.py b/apps/presentation/dashboard/smoke/team-adoption-http-fixture.py
index 9f33bff49b..6adf541b67 100644
--- a/apps/presentation/dashboard/smoke/team-adoption-http-fixture.py
+++ b/apps/presentation/dashboard/smoke/team-adoption-http-fixture.py
@@ -46,6 +46,19 @@ def main() -> None:
                 "ref": "accepted-input.json", "description": "Accepted input", "sha256": artifact["sha256"],
                 "delegation": {"operation_id": "analysis-1", "ref": artifact["ref"], "relation": "uses"}}]})
             assert wait(runner, "synthesis-1")["status"] == "accepted"
+            source_chain = "--source-chain" in sys.argv
+            if source_chain:
+                downstream = runner.read("synthesis-1")["artifacts"][0]
+                config["bindings"].append({**config["bindings"][0], "id": "further", "agent_id": "analyst",
+                    "todo_id": "todo_analyst-corrected", "workspace": str(root / "analyst/corrected"),
+                    "output_refs": ["output.json", "report.md"]})
+                runner.config.write_text(json.dumps(config))
+                (root / "analyst/corrected/report.md").write_text("# Further result\n\nUses the exact accepted synthesis.\n")
+                (root / "analyst/corrected/accepted-input.json").write_text(downstream["text"])
+                runner.start("further", "further-1", {**brief(), "inputs": [{
+                    "ref": "accepted-input.json", "description": "Accepted synthesis", "sha256": downstream["sha256"],
+                    "delegation": {"operation_id": "synthesis-1", "ref": downstream["ref"], "relation": "uses"}}]})
+                assert wait(runner, "further-1")["status"] == "accepted"
             repo = root / "project"
             executor = repo / ".loopx/config/delegations.json"
             executor.parent.mkdir(parents=True)
@@ -79,12 +92,13 @@ def main() -> None:
                     input_file.write_text(artifact["text"])
                     print(json.dumps({"restored": True}), flush=True)
                 elif operation == "inspect":
-                    observed = runner.read("analysis-1")
+                    observed = runner.read("synthesis-1" if source_chain else "analysis-1")
                     session = store.load_session("adoption")
                     print(json.dumps({"result": observed, "session_unchanged": session == initial_session,
                         "coordinator_paused": session["loopx_mode"]["paused"] is True,
                         "host_invocations": [(root / workspace / "host-invocations").read_text()
-                            for workspace in ("analyst/initial", "reviewer/corrected")]}), flush=True)
+                            for workspace in (("analyst/initial", "reviewer/corrected", "analyst/corrected")
+                                if source_chain else ("analyst/initial", "reviewer/corrected"))]}), flush=True)
                 else:
                     raise ValueError("Unknown fixture command")
         finally:
diff --git a/apps/presentation/dashboard/smoke/team-adoption-recovery-smoke.mjs b/apps/presentation/dashboard/smoke/team-adoption-recovery-smoke.mjs
index 267cfbc097..d25c525381 100644
--- a/apps/presentation/dashboard/smoke/team-adoption-recovery-smoke.mjs
+++ b/apps/presentation/dashboard/smoke/team-adoption-recovery-smoke.mjs
@@ -12,7 +12,9 @@ import {launchBrowser, loadPlaywright, waitForHttp} from "../../../../examples/d
 process.env.LOOPX_PERSONAL_WORKSPACE_PACKAGED = "1";
 const {repoRoot, outputDir, port, startServer} = await import("../../../../examples/personal-workspace-browser/fixture.mjs");
 const {openWorkspacePage} = await import("../../../../examples/personal-workspace-browser/scenario-context.mjs");
-const fixture = spawn(resolveTestPython({repoRoot}), ["-u", "apps/presentation/dashboard/smoke/team-adoption-http-fixture.py"],
+const sourceChain = process.argv.includes("--source-chain");
+const fixture = spawn(resolveTestPython({repoRoot}), ["-u", "apps/presentation/dashboard/smoke/team-adoption-http-fixture.py",
+  ...(sourceChain ? ["--source-chain"] : [])],
   {cwd: repoRoot, stdio: ["pipe", "pipe", "pipe"]});
 const exited = once(fixture, "exit");
 const lines = createInterface({input: fixture.stdout});
@@ -57,6 +59,48 @@ try {
   });
   Object.assign(mode, {enabled: true, paused: true, active_turn_id: null, native: {status: "paused", tokenBudget: 100000}});
   const results = page.getByRole("region", {name: "团队成果", exact: true});
+  if (sourceChain) {
+    // The displayed source is itself a consumer. Its domain output remains
+    // accepted when its input is withdrawn; current_use must still fence UI use.
+    await results.getByRole("button", {name: "reviewer · report.md", exact: true}).click();
+    await results.locator(".goal-team-result-reader > details > summary").click();
+    const adoption = results.locator(".goal-team-adoption");
+    await adoption.locator("summary").click();
+    await adoption.getByRole("button", {name: "查找使用此版本的后续结果", exact: true}).click();
+    await adoption.getByLabel("后续结果", {exact: true}).waitFor();
+    await results.getByLabel("当前报告", {exact: true}).waitFor();
+    const before = await command("inspect");
+    assert.equal(before.result.current_use.state, "current");
+    await command("withdraw");
+    const unavailable = await command("inspect");
+    assert.equal(unavailable.result.status, "accepted", "Historical acceptance stays intact");
+    assert.equal(unavailable.result.current_use.state, "unavailable");
+    assert.deepEqual(unavailable.result.artifacts, before.result.artifacts, "Same output bytes, different use eligibility");
+    await adoption.getByRole("button", {name: "阅读后续结果", exact: true}).click();
+    await page.waitForFunction(() => !document.querySelector(".goal-team-adoption")
+      || document.querySelector(".goal-team-adoption").getAttribute("aria-busy") === "false");
+    await mkdir(outputDir, {recursive: true});
+    await page.screenshot({path: resolve(outputDir, "team-source-chain-real-observation.png"), animations: "disabled"});
+    await results.getByRole("alert").filter({hasText: "产物或验收已变化"}).waitFor();
+    assert.equal(await results.getByLabel("当前报告", {exact: true}).count(), 0);
+    assert.equal(writes.length, 0, "A refused source read cannot offer or submit adoption");
+    await mkdir(outputDir, {recursive: true});
+    await page.screenshot({path: resolve(outputDir, "team-source-chain-real-desktop.png"), animations: "disabled"});
+    await page.setViewportSize({width: 390, height: 844}); await page.emulateMedia({reducedMotion: "reduce"});
+    assert.ok(await results.evaluate(el => el.scrollWidth <= el.clientWidth));
+    await page.screenshot({path: resolve(outputDir, "team-source-chain-real-mobile.png"), animations: "disabled"});
+    await command("restore");
+    await results.getByRole("button", {name: "刷新成果", exact: true}).focus();
+    await page.keyboard.press("Enter");
+    await results.getByLabel("当前报告", {exact: true}).waitFor();
+    const recovered = await command("inspect");
+    assert.equal(recovered.result.current_use.state, "current");
+    assert.ok(recovered.session_unchanged);
+    assert.deepEqual(recovered.host_invocations, ["1", "1", "1"]);
+    assert.equal(writes.length, 0);
+    assert.equal(api.turnRequests.length, 0);
+    console.log("team-source-chain: passed (packaged real HTTP/SQLite, historical output retained, source input withdrawal/refusal, keyboard recovery, zero adoption/dispatch)");
+  } else {
   await results.getByRole("button", {name: "analyst · output.json", exact: true}).click();
   await results.locator(".goal-team-result-reader > details > summary").click();
   const adoption = results.locator(".goal-team-adoption");
@@ -104,6 +148,7 @@ try {
   assert.equal(writes.length, 1, "Readback recovery never records a new adoption");
   assert.equal(api.turnRequests.length, 0);
   console.log("team-adoption-recovery: passed (packaged report, real HTTP/SQLite/checks/receipts, explicit decision, lost ACK, exact use withdrawal/recovery, no dispatch, mobile/keyboard)");
+  }
 } catch (error) {
   if (workspace) console.error({body: (await workspace.page.locator("body").innerText()).slice(-3000), errors: workspace.errors});
   throw error;
diff --git a/apps/presentation/dashboard/smoke/team-evidence-return-smoke.mjs b/apps/presentation/dashboard/smoke/team-evidence-return-smoke.mjs
index 79deb7af3d..49447a3e05 100644
--- a/apps/presentation/dashboard/smoke/team-evidence-return-smoke.mjs
+++ b/apps/presentation/dashboard/smoke/team-evidence-return-smoke.mjs
@@ -133,6 +133,53 @@ try {
   await verificationGap.scrollIntoViewIfNeeded();
   await page.screenshot({path: resolve(outputDir, "team-verifier-gap-mobile.png"), animations: "disabled"});
   await page.setViewportSize({width: 1512, height: 980});
+  // A completed source can retain its output bytes while its dependency
+  // chain becomes unavailable. Reading an adoption candidate must withdraw
+  // the earlier correction trace and must never offer a confirmation.
+  const adoption = evidence.locator(".goal-team-adoption");
+  await evidence.getByText("版本与采用关系详情", {exact: true}).click();
+  await adoption.getByText("确认采用于后续结果", {exact: true}).click();
+  const consumerInventory = route => route.request().postDataJSON()?.operation === "operations"
+    ? route.fulfill({json: {items: [{record_id: "b".repeat(64), operation_id: "accepted-synthesis",
+      agent_id: "synthesizer", status: "accepted", recovery_required: false}],
+      has_more: false, next_cursor: null, page_readback_complete: true}}) : route.fallback();
+  await page.route("**/api/chat/sessions/*/loopx", consumerInventory);
+  await adoption.getByRole("button", {name: "查找使用此版本的后续结果", exact: true}).click();
+  await adoption.getByLabel("后续结果", {exact: true}).waitFor();
+  const invalidSource = route => route.request().postDataJSON()?.operation === "read"
+    && route.request().postDataJSON()?.operation_id === "accepted-analysis"
+    ? route.fulfill({json: {...legacyReadback, current_use: {state: "unavailable", reason: "input_unavailable"}}})
+    : route.fallback();
+  await page.route("**/api/chat/sessions/*/loopx", invalidSource);
+  const adoptionWritesBefore = api.loopxModeRequests.filter(row => row.operation === "adopt").length;
+  await adoption.getByRole("button", {name: "阅读后续结果", exact: true}).click();
+  await page.waitForFunction(() => !document.querySelector(".goal-team-adoption")
+    || document.querySelector(".goal-team-adoption").getAttribute("aria-busy") === "false");
+  await page.screenshot({path: resolve(outputDir, "team-source-chain-observation.png"), animations: "disabled"});
+  await evidence.getByRole("alert").filter({hasText: "关联执行或版本已变化"}).waitFor({timeout: 3000});
+  assert.equal(await evidence.getByRole("button", {name: "阅读原始产物", exact: true}).count(), 0,
+    "An unavailable source chain withdraws the earlier correction witness");
+  assert.equal(await adoption.getByRole("button", {name: "确认采用于此结果", exact: true}).count(), 0);
+  assert.equal(await original().count(), 0);
+  assert.equal(api.loopxModeRequests.filter(row => row.operation === "adopt").length, adoptionWritesBefore);
+  await page.screenshot({path: resolve(outputDir, "team-source-chain-unavailable-desktop.png"), animations: "disabled"});
+  await page.setViewportSize({width: 390, height: 844});
+  await page.emulateMedia({reducedMotion: "reduce"});
+  assert.ok(await dialog.evaluate(el => el.scrollWidth <= el.clientWidth));
+  await page.screenshot({path: resolve(outputDir, "team-source-chain-unavailable-mobile.png"), animations: "disabled"});
+  await page.setViewportSize({width: 1512, height: 980});
+  await page.unroute("**/api/chat/sessions/*/loopx", invalidSource);
+  await page.unroute("**/api/chat/sessions/*/loopx", consumerInventory);
+  await recheck.focus();
+  await page.keyboard.press("Enter");
+  await original().waitFor();
+  await evidence.getByRole("button", {name: "核验关联执行", exact: true}).click();
+  await verificationGap.waitFor();
+  // Restore the same comparison explicitly after withdrawal.
+  await evidence.getByRole("button", {name: /^修订依据/}).click();
+  await evidence.getByLabel("对照产物", {exact: false}).selectOption({label: "report.md"});
+  await evidence.getByRole("button", {name: "查看原文差异", exact: true}).click();
+  await selectedOutput().waitFor();
   // Losing an optional adoption cannot erase freshly verified correction evidence.
   const unavailableDownstream = route => route.request().postDataJSON()?.operation === "read"
     && route.request().postDataJSON()?.operation_id === "accepted-synthesis"
diff --git a/apps/presentation/dashboard/src/features/personal-workspace/goal-team-adoption.tsx b/apps/presentation/dashboard/src/features/personal-workspace/goal-team-adoption.tsx
index d8661a6071..4b77a46ac6 100644
--- a/apps/presentation/dashboard/src/features/personal-workspace/goal-team-adoption.tsx
+++ b/apps/presentation/dashboard/src/features/personal-workspace/goal-team-adoption.tsx
@@ -3,7 +3,7 @@ import {adoptLoopXTeamWork, fetchLoopXTeamWork, readLoopXTeamWork, type Delegati
 import {isMarkdownArtifact, TeamArtifactReport} from "./team-artifact-content";
 
 const accepted = (row: DelegationReadback) => row.status === "accepted"
-  && !row.error && !row.recovery_required && Boolean(row.artifacts?.length);
+  && row.current_use?.state !== "unavailable" && !row.error && !row.recovery_required && Boolean(row.artifacts?.length);
 const sameResult = (expected: DelegationReadback, observed: DelegationReadback) => accepted(observed)
   && expected.operation_id === observed.operation_id && expected.request_id === observed.request_id
   && expected.agent_id === observed.agent_id && expected.todo_id === observed.todo_id