diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/provider_recovery.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/provider_recovery.rs
index 085408e7a..321a6acfb 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/provider_recovery.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/provider_recovery.rs
@@ -391,7 +391,7 @@ pub(crate) fn ensure_static_delegate_user_input_wait_at_locked(
     let question_binding = game_creator_agent_user_input_action_input_summary(&action.input)
         .unwrap_or_else(|| "questionsSha256=unavailable".to_string());
     let task = format!(
-        "{AGENT_RUNTIME_DELEGATE_CLARIFICATION_TASK_PREFIX}{}；{question_binding}。请回答以下问题；回答完成后只创建一次 agent.delegate continuation，并将 repairOfDelegationId 与 continuationOfDelegationId 指向该原 delegation，同时提交 questionsSha256/answersSha256。",
+        "{AGENT_RUNTIME_DELEGATE_CLARIFICATION_TASK_PREFIX}{}；{question_binding}。请回答以下问题；回答完成后只创建一次 agent.delegate continuation，并将 repairOfDelegationId 与 continuationOfDelegationId 指向该原 delegation。questionsSha256/answersSha256 由 Runtime 从原 delivery 补齐，你不要自己填写。",
         delivery.delegation_id
     );
     // Re-entry after a wake or restart may only reuse the exact request that
diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent_native_tools.rs b/apps/ai-game-creator-shell/src-tauri/src/agent_native_tools.rs
index 2acbe61e7..19612be70 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent_native_tools.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent_native_tools.rs
@@ -785,28 +785,27 @@ fn validate_native_agent_delegate_input(
             "Agent 原生工具协议错误：agent.delegate 返工委派时 runId 必须为 JSON null",
         ));
     }
-    let continuation_fields = [
-        "continuationOfDelegationId",
-        "questionsSha256",
-        "answersSha256",
-    ]
-    .iter()
-    .filter(|field| object.get(**field).is_some_and(Value::is_string))
-    .count();
-    let continuation_present = [
-        "continuationOfDelegationId",
-        "questionsSha256",
-        "answersSha256",
-    ]
-    .iter()
-    .filter(|field| object.contains_key(**field))
-    .count();
-    if (continuation_present != 0 && continuation_present != 3)
-        || (continuation_fields != 0 && continuation_fields != 3)
-    {
+    // 澄清 continuation 的锚点是 continuationOfDelegationId；两个指纹可以整体省略，
+    // 由 Runtime 从原 delivery 取权威值补齐。省略是为了不让 Supervisor 手抄 128 个
+    // 十六进制字符——抄错会打到硬失败，而抄对也不带来任何 Runtime 不知道的信息。
+    // 三个字段一律按“JSON null 等同于缺省”处理，与本函数其余可空字段一致。
+    let continuation_anchor = object
+        .get("continuationOfDelegationId")
+        .is_some_and(Value::is_string);
+    let digest_strings = ["questionsSha256", "answersSha256"]
+        .iter()
+        .filter(|field| object.get(**field).is_some_and(Value::is_string))
+        .count();
+    if digest_strings == 1 {
         return Err(protocol_error(
             AgentRuntimeToolPlanProtocolErrorKind::ArgumentsSchema,
-            "Agent 原生工具协议错误：agent.delegate 澄清 continuation 字段必须同时提供",
+            "Agent 原生工具协议错误：agent.delegate 澄清 continuation 指纹必须成对提供，或整体省略交给 Runtime 补齐",
+        ));
+    }
+    if digest_strings == 2 && !continuation_anchor {
+        return Err(protocol_error(
+            AgentRuntimeToolPlanProtocolErrorKind::ArgumentsSchema,
+            "Agent 原生工具协议错误：agent.delegate 澄清 continuation 指纹必须同时提供 continuationOfDelegationId",
         ));
     }
     for field in ["questionsSha256", "answersSha256"] {
@@ -2070,19 +2069,43 @@ mod tests {
     }
 
     #[test]
-    fn native_agent_delegate_rejects_partial_or_invalid_clarification_binding() {
-        let mut partial = valid_delegate_input(json!("delegation-id"), Value::Null);
-        partial
+    fn native_agent_delegate_accepts_clarification_continuation_without_fingerprints() {
+        // 指纹由 Runtime 从原 delivery 补齐，Supervisor 只需要指出续跑的是哪个委派。
+        let mut anchor_only = valid_delegate_input(json!("delegation-id"), Value::Null);
+        anchor_only
             .as_object_mut()
             .expect("delegate input object")
             .insert(
                 "continuationOfDelegationId".to_string(),
                 json!("delegation-id"),
             );
-        assert!(validate_native_agent_delegate_input(&partial)
-            .expect_err("partial continuation binding must fail")
+
+        validate_native_agent_delegate_input(&anchor_only)
+            .expect("clarification continuation without fingerprints");
+    }
+
+    #[test]
+    fn native_agent_delegate_rejects_partial_or_invalid_clarification_binding() {
+        let mut single_digest = valid_delegate_input(json!("delegation-id"), Value::Null);
+        let object = single_digest.as_object_mut().expect("delegate input object");
+        object.insert(
+            "continuationOfDelegationId".to_string(),
+            json!("delegation-id"),
+        );
+        object.insert("questionsSha256".to_string(), json!("a".repeat(64)));
+        assert!(validate_native_agent_delegate_input(&single_digest)
+            .expect_err("single continuation fingerprint must fail")
             .to_string()
-            .contains("必须同时提供"));
+            .contains("必须成对提供"));
+
+        let mut orphan_digests = valid_delegate_input(json!("delegation-id"), Value::Null);
+        let object = orphan_digests.as_object_mut().expect("delegate input object");
+        object.insert("questionsSha256".to_string(), json!("a".repeat(64)));
+        object.insert("answersSha256".to_string(), json!("b".repeat(64)));
+        assert!(validate_native_agent_delegate_input(&orphan_digests)
+            .expect_err("continuation fingerprints without anchor must fail")
+            .to_string()
+            .contains("必须同时提供 continuationOfDelegationId"));
 
         let mut invalid_sha = valid_delegate_input(json!("delegation-id"), Value::Null);
         let object = invalid_sha.as_object_mut().expect("delegate input object");
diff --git a/apps/ai-game-creator-shell/src-tauri/src/delegation.rs b/apps/ai-game-creator-shell/src-tauri/src/delegation.rs
index e15f04363..e1505a4db 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/delegation.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/delegation.rs
@@ -1553,7 +1553,13 @@ pub(crate) fn validate_static_delegate_clarification_continuation_at(
     if continuation_of != repair_of_delegation_id {
         return Err("澄清 continuation 必须绑定原 delegationId".to_string());
     }
-    if input_questions_sha != questions_sha256 || input_answers_sha != answers_sha256 {
+    // 两个指纹是可选的：原 delivery 已经唯一确定了它们，下面的 continuation identity
+    // 也只用这份权威值算，输入侧填了只是重复一遍。要求 Supervisor 手抄 128 个十六进制
+    // 字符没有任何信息增益，抄错却会一路打到硬失败，所以缺省时由 Runtime 自己补齐。
+    // 填了就仍然逐字校验——它能证明本轮续跑对应的确实是这次已回答的请求。
+    if (!input_questions_sha.is_empty() && input_questions_sha != questions_sha256)
+        || (!input_answers_sha.is_empty() && input_answers_sha != answers_sha256)
+    {
         return Err("澄清 continuation 的问题或答案指纹与已回答请求不一致".to_string());
     }
     let continuation_identity = format!(
diff --git a/apps/ai-game-creator-shell/src-tauri/src/tests/collaboration/static_deliveries.rs b/apps/ai-game-creator-shell/src-tauri/src/tests/collaboration/static_deliveries.rs
index 3f59a1cb8..c1f1a4e61 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/tests/collaboration/static_deliveries.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/tests/collaboration/static_deliveries.rs
@@ -298,6 +298,18 @@ fn clarification_continuation_delegation_id(
     )
     .expect("validate continuation binding")
     .expect("derived continuation identity");
+    // 省略两个指纹时 Runtime 必须从原 delivery 补齐权威值，并得到与手填时完全相同的身份。
+    // 这条断言挂在共享 helper 上，所有澄清 continuation 用例都会顺带覆盖到。
+    let identity_without_fingerprints = validate_static_delegate_clarification_continuation_at(
+        root,
+        parent_agent_id,
+        parent_run_id,
+        &serde_json::json!({ "continuationOfDelegationId": original_delegation_id }),
+        Some(original_delegation_id),
+    )
+    .expect("validate continuation binding without fingerprints")
+    .expect("derived continuation identity without fingerprints");
+    assert_eq!(identity, identity_without_fingerprints);
     agent_runtime_delegation_id(parent_agent_id, parent_run_id, target_agent_id, &identity)
 }