Report honest receipts when handlers err after side effects

Why: F10 - any handler error became a no-side-effect rejected receipt
and an audit-store failure dropped the generated operation ID, losing
the reconciliation handle and inviting unsafe retries.
Evidence: cmdbus tests pass (verify-u7b.json); post-execution-unknown,
audit-failure-keeps-ID and confirmation-idempotency cases added.
Impact: unknown receipts now carry the trusted operation ID via the
U7A constructor; rejected stays ID-free; no auto-replay anywhere.
Refs: feature/agent-stack-audit-remediation-b1 U7B

internal/cmdbus/account_write_fence_test.go

@@ -2,7 +2,10 @@ package cmdbus
 
 import (
 	"context"
+	"errors"
+	"strings"
 	"testing"
+	"time"
 
 	agentcommand "agent-command"
 )
@@ -16,3 +19,46 @@ func TestStrictAccountWritesRejectLegacyBusPorts(t *testing.T) {
 		t.Fatalf("legacy port wrote under strict mode: %+v, cards=%d audit=%d pending=%d", resp.Receipt, len(cards.created), len(audit.logs), len(b.pending))
 	}
 }
+
+// fencedAuditStore 是"账号围栏内审计落盘失败"的替身：围栏写路径已经跑完，
+// 只有审计行写不进去（围栏内审计失败＝结果不确定，不是"什么都没发生"）。
+type fencedAuditStore struct{ appends int }
+
+func (f *fencedAuditStore) AppendAudit(string, agentcommand.AuditEnvelope) error {
+	f.appends++
+	return errors.New("audit fenced")
+}
+
+func (f *fencedAuditStore) AppendAuditAccountChecked(string, agentcommand.AuditEnvelope, bool) error {
+	f.appends++
+	return errors.New("audit fenced")
+}
+
+// TestStrictAccountWriteAuditLossKeepsOperationID：围栏档下 handler 已提交、
+// 审计写失败时，回执仍是 unknown 且带上 handler 拿到的 operationID，
+// 调用方才能在围栏外按记录对账（F10 Bug 2 在围栏路径上的同一语义）。
+func TestStrictAccountWriteAuditLossKeepsOperationID(t *testing.T) {
+	audit := &fencedAuditStore{}
+	b := New(audit, nil, func() time.Time { return time.Unix(1700000000, 0).UTC() })
+	b.RequireAccountCheckedWrites(true)
+	var seen string
+	if err := b.RegisterBuiltin(agentcommand.CommandSpec{ID: "demo.fenced", Title: "围栏写入"}, "", func(_ context.Context, req Request) (any, error) {
+		seen = req.OperationID
+		return "written", nil
+	}); err != nil {
+		t.Fatal(err)
+	}
+	resp := b.Dispatch(context.Background(), Request{ID: "demo.fenced", Owner: "alice", Actor: "alice"})
+	if resp.Receipt.State != agentcommand.StateUnknown || !strings.Contains(resp.Receipt.Reason, "audit unavailable") {
+		t.Fatalf("fenced audit loss must stay unknown: %+v", resp.Receipt)
+	}
+	if seen == "" || resp.Receipt.OperationID != seen {
+		t.Fatalf("fenced audit loss dropped the reconciliation handle: receipt=%q handler=%q", resp.Receipt.OperationID, seen)
+	}
+	if resp.Receipt.SideEffects != agentcommand.SideEffectsPossible || resp.Receipt.Validate() != nil {
+		t.Fatalf("fenced receipt must declare possible side effects and validate: %+v", resp.Receipt)
+	}
+	if audit.appends != 1 {
+		t.Fatalf("account-checked audit appends = %d, want 1", audit.appends)
+	}
+}

internal/cmdbus/cmdbus.go

@@ -26,6 +26,43 @@ type AuditStore interface {
 	AppendAudit(owner string, env agentcommand.AuditEnvelope) error
 }
 
+// OperationRecord 是"已记录操作"的最小对账投影（R7/KTD6）。它回答的是
+// “这个 operationID 在本 owner/project 名下到底是什么结果”，而不是重放入口。
+// 刻意保持最小：审计信封只存状态与标识，不存理由文本，所以这里没有 Reason——
+// 不为不存在的字段留位置。
+type OperationRecord struct {
+	OperationID string
+	CommandID   string
+	State       agentcommand.ResultState
+	Time        time.Time
+}
+
+// OperationQuery 是 operationID 的对账查询端口（组合根装配；nil = 不提供）。
+//
+// 授权口径：owner 与 projectID 都是可信过滤条件，实现必须把它们放进查询谓词
+// （SQL 的 owner/project 等值条件），不得由调用方参数扩大可见范围；查不到就
+// 返回 not found，不得回退为“未执行”。
+//
+// 诚实边界：本端口只解析“已经落成记录”的 operation。宿主侧的命令回执记录就是
+// 命令审计信封（command_audit 按 owner+project 归属）；handler 自己的领域操作表
+// （如文档投递 document_render_deliveries）由各自领域查询负责，不经本端口。某些
+// 命令根本不持久化 req.OperationID（内置的 builtin.help、runtime.mock、
+// models.set、conversation.profile、conversation.create 都是无操作表的即时用例），
+// 对它们的 operationID 查询恒为 not found——这类命令只能按领域资源（会话、画像、
+// 设置项）对账，不得声称可按 operationID 查询。
+type OperationQuery interface {
+	LookupOperation(owner, projectID, operationID string) (OperationRecord, bool, error)
+}
+
+var (
+	// ErrOperationScope 缺少可信 owner/project/operation 作用域：fail-closed，无作用域即无可见性。
+	ErrOperationScope = errors.New("cmdbus: operation lookup requires owner, project and operation scope")
+	// ErrOperationNotRecorded 该作用域内没有此 operation 的记录（未记录 ≠ 未执行）。
+	ErrOperationNotRecorded = errors.New("cmdbus: no operation record in this owner and project scope")
+	// ErrOperationQueryUnavailable 组合根未装配对账查询端口。
+	ErrOperationQueryUnavailable = errors.New("cmdbus: operation query unavailable")
+)
+
 // CardPort 确认卡所需卡片能力（cardsvc.Service 实现）。
 type CardPort interface {
 	Create(owner string, card core.ActivityCard, ref string) (core.ActivityCard, error)
@@ -35,6 +72,39 @@ type CardPort interface {
 // Handler 宿主执行适配器：同步内置用例返回 payload；异步执行自行返回 accepted 回执。
 type Handler func(ctx context.Context, req Request) (any, error)
 
+// ErrNotExecuted 标记"失败确定发生在任何副作用之前"的 handler 错误（F10/U7b）。
+// 语义口径：只有带此标记的错误才可归 rejected（确定未执行、无副作用、回执不得
+// 携带 operationID）；未标记的 handler 错误一律按"已执行随后不确定"归 unknown，
+// 并带上本次分发已签发的 trusted operation ID 交由对账收敛。宿主不得据
+// "处理方报了错"臆断未执行——那会把已写库的操作诱使成不安全重试。
+//
+// 进程内插件（pkg/extension.Handler）当前还没有等价的声明位：插件命令的
+// handler 错误一律按 unknown 对账，直到扩展面补上对应标记为止。
+var ErrNotExecuted = errors.New("cmdbus: not executed")
+
+// NotExecutedError 是带"确定未执行"声明的错误包装。Error() 保留原始文案
+// （回执 reason 不因标记而变形），Unwrap/Is 让 errors.Is 同时匹配
+// ErrNotExecuted 与被包装的原始错误。
+type NotExecutedError struct{ Err error }
+
+func (e *NotExecutedError) Error() string { return e.Err.Error() }
+func (e *NotExecutedError) Unwrap() error { return e.Err }
+func (e *NotExecutedError) Is(target error) bool {
+	return target == ErrNotExecuted
+}
+
+// NotExecuted 声明该失败确定未执行（校验/权限/确认缺失/领域事务回滚等任何
+// 副作用之前的拒绝）。nil 原样返回；重复标记幂等。
+func NotExecuted(err error) error {
+	if err == nil || IsNotExecuted(err) {
+		return err
+	}
+	return &NotExecutedError{Err: err}
+}
+
+// IsNotExecuted 报告该错误是否声明了"确定未执行"。
+func IsNotExecuted(err error) bool { return errors.Is(err, ErrNotExecuted) }
+
 // CommandTool EXT-14：带 exposeAsTool 声明的命令的工具投影视图（runmgr 消费）。
 // Risk 取 low|medium|high（工具权限声明口径）；ID 即工具名（命令 id）。
 type CommandTool struct {
@@ -171,6 +241,8 @@ type Bus struct {
 	strictAccountWrites  bool
 	allowImplicitLocal   bool
 	projectWorkPreflight func(context.Context, Request) error
+	// operationQuery operationID 对账查询端口（nil = 不提供，见 OperationQuery）。
+	operationQuery OperationQuery
 }
 
 func (b *Bus) SetProjectWorkPreflight(fn func(context.Context, Request) error) {
@@ -200,6 +272,33 @@ func (b *Bus) Registry() *agentcommand.Registry { return b.reg }
 // SetPendingStore 注入确认挂起态的持久化实现（nil = 仅进程内）。
 func (b *Bus) SetPendingStore(st PendingStore) { b.pendingStore = st }
 
+// SetOperationQuery 装配 operationID 对账查询端口（组合根；启动期一次）。
+func (b *Bus) SetOperationQuery(q OperationQuery) { b.operationQuery = q }
+
+// LookupOperation 按 owner/project 作用域查一个已记录 operation 的当前状态
+// （R7/KTD6）。这是 unknown 回执的对账入口：拿到 operationID 的调用方先查
+// 记录，再决定下一步，而不是重发命令。
+//
+// 三重 fail-closed：作用域任一为空即拒（不猜、不按 owner=“”放行）、未装配端口
+// 即拒、查不到即 ErrOperationNotRecorded（不推断“未执行”）。跨 owner 查询由
+// 端口的 owner 等值谓词拒绝——本层只把 owner 当可信条件往下传。
+func (b *Bus) LookupOperation(owner, projectID, operationID string) (OperationRecord, error) {
+	if owner == "" || projectID == "" || operationID == "" {
+		return OperationRecord{}, ErrOperationScope
+	}
+	if b.operationQuery == nil {
+		return OperationRecord{}, ErrOperationQueryUnavailable
+	}
+	record, found, err := b.operationQuery.LookupOperation(owner, projectID, operationID)
+	if err != nil {
+		return OperationRecord{}, err
+	}
+	if !found || record.OperationID == "" {
+		return OperationRecord{}, ErrOperationNotRecorded
+	}
+	return record, nil
+}
+
 // SetEffectiveAccountGuard installs the composition-root check at startup.
 // Handler Store writes still need their own final transaction fence.
 func (b *Bus) SetEffectiveAccountGuard(g EffectiveAccountGuard) { b.accountGuard = g }
@@ -405,10 +504,12 @@ func (b *Bus) Dispatch(ctx context.Context, req Request) Response {
 		if b.pendingStore != nil {
 			raw, _ := json.Marshal(req)
 			if err := b.savePending(card.ID, accountActor(req), string(raw)); err != nil {
-				return receipt(agentcommand.StateUnknown, "", "confirm pending: "+err.Error())
+				// 确认卡已创建（副作用已发生），挂起态却没落库：结果不确定，且
+				// 卡 ID 就是本次受理的操作标识——随 unknown 一并给出，供对账。
+				return receipt(agentcommand.StateUnknown, card.ID, "confirm pending: "+err.Error())
 			}
 		} else if b.strictAccountWrites {
-			return receipt(agentcommand.StateUnknown, "", "confirm pending: account-checked store required")
+			return receipt(agentcommand.StateUnknown, card.ID, "confirm pending: account-checked store required")
 		}
 		b.pendMu.Lock()
 		b.pending[card.ID] = pending{req: req, cardID: card.ID}
@@ -425,7 +526,9 @@ func (b *Bus) Dispatch(ctx context.Context, req Request) Response {
 	}
 	// The domain handler can persist this trusted ID with its transaction/outbox.
 	// Entropy, not the clock or caller Params, distinguishes concurrent operations.
-	// A handler failure still writes only a rejected audit receipt without an ID.
+	// A handler error keeps the ID only on the "executed then uncertain" path
+	// (unknown): rejected must never carry one, and unknown without a queryable
+	// handle would be a dead end for reconciliation.
 	var opBytes [24]byte
 	if _, err := rand.Read(opBytes[:]); err != nil {
 		return receipt(agentcommand.StateUnknown, "", "operation ID unavailable")
@@ -433,11 +536,26 @@ func (b *Bus) Dispatch(ctx context.Context, req Request) Response {
 	req.OperationID = "op_" + hex.EncodeToString(opBytes[:])
 	payload, err := h(ctx, req)
 	if err != nil {
-		return receipt(agentcommand.StateRejected, "", "rejected: "+err.Error())
+		if IsNotExecuted(err) {
+			// handler 声明失败发生在任何副作用之前：确定未执行，可安全归
+			// rejected（回执契约禁止 rejected 携带 operationID）。
+			return receipt(agentcommand.StateRejected, "", "rejected: "+err.Error())
+		}
+		// handler 已开始执行才报错：宿主无法断言"无副作用"（F10）。按"已执行
+		// 随后不确定"归 unknown，并带上本次分发已签发的 trusted operation ID，
+		// 调用方据此按记录对账，而不是盲目重试。本路径不做任何自动重放。
+		return b.unknownAfterExecution(req, "handler failed after execution began: "+err.Error(), start)
 	}
 	return Response{Receipt: b.auditReceipt(req, agentcommand.StateCommitted, req.OperationID, "", start), Payload: payload}
 }
 
+// unknownAfterExecution 记录并返回"已执行随后不确定"的回执（F10/U7b）：审计
+// 信封带 state=unknown 与已签发的 operationID（可查凭证），回执走库内受信
+// 构造器 NewUnknownAfterExecution，保证 Validate() 通过且对账句柄不丢。
+func (b *Bus) unknownAfterExecution(req Request, reason string, start time.Time) Response {
+	return Response{Receipt: b.auditReceipt(req, agentcommand.StateUnknown, req.OperationID, reason, start)}
+}
+
 // Confirm 确认卡回道：actionID=confirm 执行挂起请求（entrance 归一 card），其余视为取消。
 func (b *Bus) Confirm(owner, cardID, actionID string) Response {
 	return b.ConfirmContext(context.Background(), owner, cardID, actionID)
@@ -456,7 +574,7 @@ func (b *Bus) ConfirmContext(ctx context.Context, owner, cardID, actionID string
 	p, ok := b.pending[cardID]
 	b.pendMu.Unlock()
 	if ok && p.req.Owner != "" && p.req.Owner != owner {
-		return Response{Receipt: agentcommand.ExecReceipt{CommandID: p.req.ID, State: agentcommand.StateRejected, Reason: "confirm owner mismatch", Time: b.now().UTC()}}
+		return Response{Receipt: agentcommand.ExecReceipt{CommandID: p.req.ID, State: agentcommand.StateRejected, Reason: "confirm owner mismatch", SideEffects: agentcommand.SideEffectsNone, Time: b.now().UTC()}}
 	}
 	if b.pendingStore != nil {
 		storedOwner, payload, found, err := b.takePending(cardID, owner)
@@ -466,7 +584,7 @@ func (b *Bus) ConfirmContext(ctx context.Context, owner, cardID, actionID string
 		if found {
 			var req Request
 			if storedOwner != owner || json.Unmarshal([]byte(payload), &req) != nil {
-				return Response{Receipt: agentcommand.ExecReceipt{CommandID: "unknown", State: agentcommand.StateRejected, Reason: "invalid pending confirm", Time: b.now().UTC()}}
+				return Response{Receipt: agentcommand.ExecReceipt{CommandID: "unknown", State: agentcommand.StateRejected, Reason: "invalid pending confirm", SideEffects: agentcommand.SideEffectsNone, Time: b.now().UTC()}}
 			}
 			p = pending{req: req, cardID: cardID}
 			ok = true
@@ -477,11 +595,11 @@ func (b *Bus) ConfirmContext(ctx context.Context, owner, cardID, actionID string
 		ok = false
 	}
 	if !ok {
-		return Response{Receipt: agentcommand.ExecReceipt{CommandID: "unknown", State: agentcommand.StateRejected, Reason: "no pending confirm (expired or already resolved)", Time: b.now().UTC()}}
+		return Response{Receipt: agentcommand.ExecReceipt{CommandID: "unknown", State: agentcommand.StateRejected, Reason: "no pending confirm (expired or already resolved)", SideEffects: agentcommand.SideEffectsNone, Time: b.now().UTC()}}
 	}
 	req := p.req
 	if req.Owner != "" && req.Owner != owner {
-		return Response{Receipt: agentcommand.ExecReceipt{CommandID: req.ID, State: agentcommand.StateRejected, Reason: "confirm owner mismatch", Time: b.now().UTC()}}
+		return Response{Receipt: agentcommand.ExecReceipt{CommandID: req.ID, State: agentcommand.StateRejected, Reason: "confirm owner mismatch", SideEffects: agentcommand.SideEffectsNone, Time: b.now().UTC()}}
 	}
 	b.pendMu.Lock()
 	delete(b.pending, cardID)
@@ -497,15 +615,29 @@ func (b *Bus) ConfirmContext(ctx context.Context, owner, cardID, actionID string
 	}
 	resp := b.Dispatch(ctx, req)
 	if b.cards != nil {
-		if resp.Receipt.State == agentcommand.StateCommitted {
+		switch resp.Receipt.State {
+		case agentcommand.StateCommitted:
 			_, _ = b.setConfirmCardStatus(owner, cardID, core.CardResolved, "ok", "confirmed")
-		} else {
+		case agentcommand.StateUnknown:
+			// 已执行随后不确定：卡片必须落到终态（悬在 action_required 会诱导
+			// 二次确认，而挂起项已被消费，重放只会得到"已解决"），但不得断言
+			// 失败——tone 用 warn，note 写明不确定原因与对账用 operationID。
+			_, _ = b.setConfirmCardStatus(owner, cardID, core.CardFailed, "warn", uncertainNote(resp.Receipt))
+		default:
 			_, _ = b.setConfirmCardStatus(owner, cardID, core.CardFailed, "danger", resp.Receipt.Reason)
 		}
 	}
 	return resp
 }
 
+// uncertainNote 组成"结果未知"卡片的说明：不确定原因 + 对账句柄。
+func uncertainNote(r agentcommand.ExecReceipt) string {
+	if r.OperationID == "" {
+		return r.Reason
+	}
+	return r.Reason + " (operation " + r.OperationID + ")"
+}
+
 func accountActor(req Request) string {
 	// Plugin and delegated commands use Actor for an audit label such as a
 	// plugin ID; Owner is the effective account whose state controls effects.
@@ -528,7 +660,7 @@ func (b *Bus) checkEffectiveAccount(ctx context.Context, actor string) error {
 func (b *Bus) accountRejected(commandID string, start time.Time) Response {
 	return Response{Receipt: agentcommand.ExecReceipt{
 		CommandID: commandID, State: agentcommand.StateRejected,
-		Reason: "effective account unavailable", Time: start.UTC(),
+		Reason: "effective account unavailable", SideEffects: agentcommand.SideEffectsNone, Time: start.UTC(),
 	}}
 }
 
@@ -555,10 +687,37 @@ func (b *Bus) auditReceipt(req Request, state agentcommand.ResultState, op, reas
 		err = b.audit.AppendAudit(req.Owner, env)
 	}
 	if err != nil {
-		// 审计不可用：结果标记未知，不臆断成功（四态语义）。
-		return agentcommand.ExecReceipt{CommandID: req.ID, State: agentcommand.StateUnknown, Reason: "audit unavailable: " + err.Error(), Time: b.now().UTC()}
+		// 审计不可用：结果标记未知，不臆断成功（四态语义）。已经签发过操作标识的
+		// 路径（committed/accepted/已执行后不确定）连同该标识一并返回——信封丢失
+		// 不等于操作没发生，调用方仍需按 operationID 对账；确定未执行的路径不带
+		// 标识（rejected 契约禁止带 ID，unknown 无 ID 时也无需对账）。
+		return unknownReceipt(req.ID, state, op, "audit unavailable: "+err.Error(), b.now().UTC())
 	}
-	return agentcommand.ExecReceipt{CommandID: req.ID, State: state, OperationID: op, Reason: reason, Time: b.now().UTC()}
+	if state == agentcommand.StateUnknown && op != "" {
+		// 已执行随后不确定：只有库内受信构造器允许 unknown 携带本流程签发的 ID。
+		return agentcommand.NewUnknownAfterExecution(req.ID, op, reason, b.now().UTC())
+	}
+	return agentcommand.ExecReceipt{CommandID: req.ID, State: state, OperationID: op, Reason: reason,
+		SideEffects: sideEffectsFor(state), Time: b.now().UTC()}
+}
+
+// unknownReceipt 构造"结果未知"回执：已签发过操作标识时走受信构造器携带该标识
+// （供对账），否则返回不带标识的 unknown。state=rejected 恒不带标识。
+func unknownReceipt(commandID string, state agentcommand.ResultState, op, reason string, at time.Time) agentcommand.ExecReceipt {
+	if op != "" && state != agentcommand.StateRejected {
+		return agentcommand.NewUnknownAfterExecution(commandID, op, reason, at)
+	}
+	return agentcommand.ExecReceipt{CommandID: commandID, State: agentcommand.StateUnknown, Reason: reason, Time: at}
+}
+
+// sideEffectsFor 回执的副作用声明：总线自身发起的 rejected 均为任何副作用之前
+// 的拒绝（未知命令/参数校验/项目前置/账号预检/无处理器/确认取消/handler 声明的
+// not-executed），故断言 none；committed/accepted 维持今日语义（未声明）。
+func sideEffectsFor(state agentcommand.ResultState) agentcommand.SideEffects {
+	if state == agentcommand.StateRejected {
+		return agentcommand.SideEffectsNone
+	}
+	return agentcommand.SideEffectsUnset
 }
 
 func digest(params map[string]any) string {

internal/cmdbus/cmdbus_test.go

@@ -52,7 +52,8 @@ func newTestBus(a AuditStore, c CardPort) *Bus {
 	}, "/risky", func(ctx context.Context, req Request) (any, error) {
 		t, _ := req.Params["target"].(string)
 		if t == "boom" {
-			return nil, errors.New("handler rejected")
+			// 参数级拒绝发生在任何副作用之前：显式声明 not-executed（F10）。
+			return nil, NotExecuted(errors.New("handler rejected"))
 		}
 		return map[string]any{"did": t}, nil
 	})
@@ -106,13 +107,20 @@ func TestHandlerReceivesCommittedOperationIDBeforeDomainWrite(t *testing.T) {
 		if req.OperationID == "" {
 			t.Fatal("handler must receive a tentative host operation ID")
 		}
-		return nil, errors.New("domain transaction rejected")
+		// 领域事务回滚 = 确定未执行：声明 not-executed 才是 rejected 的依据。
+		return nil, NotExecuted(errors.New("domain transaction rejected"))
 	}); err != nil {
 		t.Fatal(err)
 	}
 	failed := bus.Dispatch(context.Background(), Request{ID: "rdm.fail", Actor: "alice", Owner: "alice"})
 	if failed.Receipt.State != agentcommand.StateRejected || failed.Receipt.OperationID != "" || len(audit.logs) != 2 || audit.logs[1].OperationID != "" {
-		t.Fatalf("failed handler was marked committed: %+v audits=%+v", failed.Receipt, audit.logs)
+		t.Fatalf("not-executed handler was not rejected: %+v audits=%+v", failed.Receipt, audit.logs)
+	}
+	if err := failed.Receipt.Validate(); err != nil {
+		t.Fatalf("rejected receipt must satisfy the library contract: %v", err)
+	}
+	if failed.Receipt.SideEffects != agentcommand.SideEffectsNone {
+		t.Fatalf("rejected receipt must declare no side effects, got %q", failed.Receipt.SideEffects)
 	}
 }
 
@@ -342,3 +350,248 @@ func TestHighDangerPluginCommandConfirmsFirst(t *testing.T) {
 		t.Fatalf("confirm: %+v executed=%d", resp2.Receipt, executed)
 	}
 }
+
+// ---- F10/U7b：确定未执行 vs 已执行后不确定 + operationID 对账 ----
+
+// memOperationQuery 是按 owner/project 等值谓词过滤的操作记录替身（模拟 SQL
+// 作用域）：跨 owner 或跨 project 的 operationID 一律查不到。
+type memOperationQuery struct {
+	records map[string]OperationRecord // key: owner|projectID|operationID
+}
+
+func operationKey(owner, projectID, operationID string) string {
+	return owner + "|" + projectID + "|" + operationID
+}
+
+func (q *memOperationQuery) LookupOperation(owner, projectID, operationID string) (OperationRecord, bool, error) {
+	rec, ok := q.records[operationKey(owner, projectID, operationID)]
+	return rec, ok, nil
+}
+
+// recordAudit 把总线真实落下的审计信封登记为可查操作记录（对齐"审计信封就是
+// 宿主侧操作记录"的口径），用于验证 unknown 回执给出的对账句柄真的查得到。
+func (q *memOperationQuery) recordAudit(owner, projectID string, env agentcommand.AuditEnvelope) {
+	if env.OperationID == "" {
+		return
+	}
+	q.records[operationKey(owner, projectID, env.OperationID)] = OperationRecord{
+		OperationID: env.OperationID, CommandID: env.CommandID, State: env.State, Time: env.Time,
+	}
+}
+
+// TestHandlerErrorAfterStoreWriteIsUnknownWithOperationID 是 F10 的核心回归：
+// handler 已经写库、之后才失败时，回执必须是 unknown 且携带它拿到的
+// operationID，理由点明"执行开始后失败"，绝不退化成 rejected（会诱发不安全重试）。
+func TestHandlerErrorAfterStoreWriteIsUnknownWithOperationID(t *testing.T) {
+	audit := &memAudit{}
+	bus := New(audit, nil, func() time.Time { return time.Unix(1700000000, 0).UTC() })
+	var writes []string
+	var seen string
+	if err := bus.RegisterBuiltin(agentcommand.CommandSpec{ID: "demo.write", Title: "写入"}, "", func(_ context.Context, req Request) (any, error) {
+		seen = req.OperationID
+		writes = append(writes, req.OperationID) // 副作用已发生
+		return nil, errors.New("commit acknowledgement lost")
+	}); err != nil {
+		t.Fatal(err)
+	}
+	resp := bus.Dispatch(context.Background(), Request{ID: "demo.write", Actor: "alice", Owner: "alice"})
+	if resp.Receipt.State != agentcommand.StateUnknown {
+		t.Fatalf("post-execution failure must not be reported as rejected: %+v", resp.Receipt)
+	}
+	if seen == "" || resp.Receipt.OperationID != seen {
+		t.Fatalf("unknown receipt lost the reconciliation handle: receipt=%q handler=%q", resp.Receipt.OperationID, seen)
+	}
+	if !strings.Contains(resp.Receipt.Reason, "after execution began") {
+		t.Fatalf("reason must name post-execution uncertainty: %q", resp.Receipt.Reason)
+	}
+	if resp.Receipt.SideEffects != agentcommand.SideEffectsPossible {
+		t.Fatalf("side effects = %q, want %q", resp.Receipt.SideEffects, agentcommand.SideEffectsPossible)
+	}
+	if err := resp.Receipt.Validate(); err != nil {
+		t.Fatalf("trusted unknown receipt must satisfy the library contract: %v", err)
+	}
+	if len(writes) != 1 {
+		t.Fatalf("handler ran %d times, want 1", len(writes))
+	}
+	// 对账凭证：审计信封落 unknown + 同一个 operationID。
+	if len(audit.logs) != 1 || audit.logs[0].State != agentcommand.StateUnknown || audit.logs[0].OperationID != seen {
+		t.Fatalf("audit envelope is not reconcilable: %+v", audit.logs)
+	}
+	// 宿主不得自动重放：再次分发是一次新操作（新的 operationID），旧的不被复用。
+	again := bus.Dispatch(context.Background(), Request{ID: "demo.write", Actor: "alice", Owner: "alice"})
+	if again.Receipt.State != agentcommand.StateUnknown || again.Receipt.OperationID == resp.Receipt.OperationID || len(writes) != 2 {
+		t.Fatalf("re-dispatch must be a new operation, not a replay: %+v writes=%d", again.Receipt, len(writes))
+	}
+}
+
+// TestHandlerNotExecutedErrorStaysRejected：handler 显式声明未执行才是
+// rejected 的依据；回执不得携带 operationID（库契约）。
+func TestHandlerNotExecutedErrorStaysRejected(t *testing.T) {
+	audit := &memAudit{}
+	bus := New(audit, nil, func() time.Time { return time.Unix(1700000000, 0).UTC() })
+	calls := 0
+	if err := bus.RegisterBuiltin(agentcommand.CommandSpec{ID: "demo.guard", Title: "守卫"}, "", func(context.Context, Request) (any, error) {
+		calls++
+		boom := errors.New("permission denied")
+		return nil, NotExecuted(boom)
+	}); err != nil {
+		t.Fatal(err)
+	}
+	resp := bus.Dispatch(context.Background(), Request{ID: "demo.guard", Owner: "alice", Actor: "alice"})
+	if resp.Receipt.State != agentcommand.StateRejected || resp.Receipt.OperationID != "" {
+		t.Fatalf("not-executed failure must stay rejected without an ID: %+v", resp.Receipt)
+	}
+	if resp.Receipt.Reason != "rejected: permission denied" {
+		t.Fatalf("not-executed marking must not distort the reason: %q", resp.Receipt.Reason)
+	}
+	if resp.Receipt.SideEffects != agentcommand.SideEffectsNone || resp.Receipt.Validate() != nil {
+		t.Fatalf("rejected receipt must declare no side effects and validate: %+v", resp.Receipt)
+	}
+	if calls != 1 || len(audit.logs) != 1 || audit.logs[0].State != agentcommand.StateRejected || audit.logs[0].OperationID != "" {
+		t.Fatalf("unexpected effects: calls=%d audits=%+v", calls, audit.logs)
+	}
+	// 标记语义：errors.Is 同时命中 ErrNotExecuted 与原始错误；nil 幂等。
+	wrapped := NotExecuted(errors.New("boom"))
+	if !IsNotExecuted(wrapped) || !errors.Is(wrapped, ErrNotExecuted) || wrapped.Error() != "boom" {
+		t.Fatalf("not-executed wrapper semantics: %v / %v", wrapped, IsNotExecuted(wrapped))
+	}
+	if NotExecuted(nil) != nil || !IsNotExecuted(NotExecuted(wrapped)) {
+		t.Fatal("not-executed marking must be nil-safe and idempotent")
+	}
+}
+
+// TestCommittedWithAuditFailureKeepsOperationID 是 F10 Bug 2 的回归：审计
+// 落盘失败时回执仍是 unknown，但必须带着已交给 handler 的 operationID，
+// 理由点名审计不可用，调用方才能按记录对账而不是重发。
+func TestCommittedWithAuditFailureKeepsOperationID(t *testing.T) {
+	audit := &memAudit{fail: true}
+	bus := New(audit, nil, func() time.Time { return time.Unix(1700000000, 0).UTC() })
+	var seen string
+	if err := bus.RegisterBuiltin(agentcommand.CommandSpec{ID: "demo.ping", Title: "Ping"}, "", func(_ context.Context, req Request) (any, error) {
+		seen = req.OperationID
+		return map[string]any{"pong": true}, nil
+	}); err != nil {
+		t.Fatal(err)
+	}
+	resp := bus.Dispatch(context.Background(), Request{ID: "demo.ping", Owner: "alice", Actor: "alice"})
+	if resp.Receipt.State != agentcommand.StateUnknown || !strings.Contains(resp.Receipt.Reason, "audit unavailable") {
+		t.Fatalf("audit loss must stay unknown and name the audit: %+v", resp.Receipt)
+	}
+	if seen == "" || resp.Receipt.OperationID != seen {
+		t.Fatalf("audit loss dropped the reconciliation handle: receipt=%q handler=%q", resp.Receipt.OperationID, seen)
+	}
+	if resp.Receipt.SideEffects != agentcommand.SideEffectsPossible || resp.Receipt.Validate() != nil {
+		t.Fatalf("audit-loss receipt must declare possible side effects and validate: %+v", resp.Receipt)
+	}
+	if len(audit.logs) != 0 {
+		t.Fatalf("audit rows written while failing: %+v", audit.logs)
+	}
+	// 校验：未执行路径（rejected）在审计不可用时不得凭空出现 operationID。
+	rejected := bus.Dispatch(context.Background(), Request{ID: "demo.absent"})
+	if rejected.Receipt.OperationID != "" || rejected.Receipt.State != agentcommand.StateUnknown {
+		t.Fatalf("audit loss must not invent an operation ID: %+v", rejected.Receipt)
+	}
+}
+
+// TestValidationRejectionNeverRunsHandler：显式校验拒绝仍是 rejected、无 ID、
+// 无副作用，且 handler 一次都不许跑。
+func TestValidationRejectionNeverRunsHandler(t *testing.T) {
+	audit := &memAudit{}
+	bus := New(audit, nil, func() time.Time { return time.Unix(1700000000, 0).UTC() })
+	calls := 0
+	if err := bus.RegisterBuiltin(agentcommand.CommandSpec{
+		ID: "demo.needs", Title: "需要参数",
+		ParamsSchema: json.RawMessage(`{"type":"object","required":["target"],"properties":{"target":{"type":"string"}}}`),
+	}, "", func(context.Context, Request) (any, error) {
+		calls++
+		return "ran", nil
+	}); err != nil {
+		t.Fatal(err)
+	}
+	resp := bus.Dispatch(context.Background(), Request{ID: "demo.needs", Owner: "alice", Params: map[string]any{}})
+	if resp.Receipt.State != agentcommand.StateRejected || resp.Receipt.OperationID != "" || resp.Receipt.Validate() != nil {
+		t.Fatalf("validation rejection: %+v", resp.Receipt)
+	}
+	if resp.Receipt.SideEffects != agentcommand.SideEffectsNone || calls != 0 {
+		t.Fatalf("validation rejection ran the handler or claimed effects: calls=%d %+v", calls, resp.Receipt)
+	}
+	if len(audit.logs) != 1 || audit.logs[0].State != agentcommand.StateRejected || audit.logs[0].OperationID != "" {
+		t.Fatalf("validation audit row: %+v", audit.logs)
+	}
+}
+
+// TestRepeatedConfirmExecutesOnce：确认卡重复确认不得二次执行（F10 分类改动
+// 不得放宽既有收口语义）；unknown 卡面也不得悬在待确认。
+func TestRepeatedConfirmExecutesOnce(t *testing.T) {
+	audit, cards := &memAudit{}, &memCards{}
+	bus := New(audit, cards, func() time.Time { return time.Unix(1700000000, 0).UTC() })
+	executed := 0
+	if err := bus.RegisterBuiltin(agentcommand.CommandSpec{
+		ID: "demo.once", Title: "只执行一次", Danger: agentcommand.DangerHigh,
+	}, "/once", func(context.Context, Request) (any, error) {
+		executed++
+		return "done", nil
+	}); err != nil {
+		t.Fatal(err)
+	}
+	if r := bus.Dispatch(context.Background(), Request{ID: "demo.once", Owner: "alice", ConversationID: "cnv_1"}); r.Receipt.State != agentcommand.StateAccepted {
+		t.Fatalf("pre-confirm: %+v", r.Receipt)
+	}
+	first := bus.Confirm("alice", "card_x1", "confirm")
+	second := bus.Confirm("alice", "card_x1", "confirm")
+	if first.Receipt.State != agentcommand.StateCommitted || executed != 1 {
+		t.Fatalf("confirm: %+v executed=%d", first.Receipt, executed)
+	}
+	if second.Receipt.State != agentcommand.StateRejected || second.Receipt.OperationID != "" || executed != 1 {
+		t.Fatalf("re-confirm executed twice: %+v executed=%d", second.Receipt, executed)
+	}
+}
+
+// TestLookupOperationIsOwnerProjectScoped（R7/KTD6）：unknown 回执的对账查询
+// 复用 owner/project 等值作用域；跨 owner、跨 project、缺作用域、未装配端口
+// 一律 fail-closed，查不到绝不推断"未执行"。
+func TestLookupOperationIsOwnerProjectScoped(t *testing.T) {
+	audit := &memAudit{}
+	query := &memOperationQuery{records: map[string]OperationRecord{}}
+	bus := New(audit, nil, func() time.Time { return time.Unix(1700000000, 0).UTC() })
+	if _, err := bus.LookupOperation("alice", "proj_1", "op_1"); !errors.Is(err, ErrOperationQueryUnavailable) {
+		t.Fatalf("unwired query must fail closed: %v", err)
+	}
+	bus.SetOperationQuery(query)
+	if err := bus.RegisterBuiltin(agentcommand.CommandSpec{ID: "demo.write", Title: "写入"}, "", func(context.Context, Request) (any, error) {
+		// 副作用之后失败 → unknown + operationID（对账句柄）。
+		return nil, errors.New("ack lost")
+	}); err != nil {
+		t.Fatal(err)
+	}
+	resp := bus.Dispatch(context.Background(), Request{ID: "demo.write", Owner: "alice", Actor: "alice"})
+	if resp.Receipt.State != agentcommand.StateUnknown || resp.Receipt.OperationID == "" {
+		t.Fatalf("setup dispatch: %+v", resp.Receipt)
+	}
+	// 对账记录＝总线真实落下的审计信封（同一 owner/project 快照）。
+	for _, env := range audit.logs {
+		query.recordAudit("alice", "proj_1", env)
+	}
+	op := resp.Receipt.OperationID
+	record, err := bus.LookupOperation("alice", "proj_1", op)
+	if err != nil {
+		t.Fatalf("owner-scoped lookup: %v", err)
+	}
+	if record.OperationID != op || record.CommandID != "demo.write" || record.State != agentcommand.StateUnknown {
+		t.Fatalf("lookup returned the wrong record: %+v", record)
+	}
+	if _, err := bus.LookupOperation("bob", "proj_1", op); !errors.Is(err, ErrOperationNotRecorded) {
+		t.Fatalf("cross-owner lookup must not resolve: %v", err)
+	}
+	if _, err := bus.LookupOperation("alice", "proj_other", op); !errors.Is(err, ErrOperationNotRecorded) {
+		t.Fatalf("cross-project lookup must not resolve: %v", err)
+	}
+	for _, scope := range [][3]string{{"", "proj_1", op}, {"alice", "", op}, {"alice", "proj_1", ""}} {
+		if _, err := bus.LookupOperation(scope[0], scope[1], scope[2]); !errors.Is(err, ErrOperationScope) {
+			t.Fatalf("scope %v must fail closed: %v", scope, err)
+		}
+	}
+	if _, err := bus.LookupOperation("bob", "proj_1", "op_absent"); !errors.Is(err, ErrOperationNotRecorded) {
+		t.Fatalf("unknown operation must not be reported as executed: %v", err)
+	}
+}

internal/cmdbus/pending_store_test.go

@@ -2,7 +2,9 @@ package cmdbus
 
 import (
 	"context"
+	"errors"
 	"path/filepath"
+	"strings"
 	"testing"
 
 	agentcommand "agent-command"
@@ -31,3 +33,35 @@ func TestPendingConfirmRestoredAfterRestart(t *testing.T) {
 		t.Fatalf("restored confirm: %+v", again.Receipt)
 	}
 }
+
+// failingPendingStore 是"确认卡已创建、挂起态写不进去"的替身：受理已经发生
+// （卡在收件箱里），只是结果不可知。
+type failingPendingStore struct{ err error }
+
+func (p *failingPendingStore) SavePendingConfirm(string, string, string) error { return p.err }
+func (p *failingPendingStore) TakePendingConfirm(string) (string, string, bool, error) {
+	return "", "", false, p.err
+}
+
+// TestConfirmPendingWriteFailureKeepsCardOperationID：挂起态落盘失败不得吞掉操作
+// 标识——卡 ID 就是本次受理的句柄，unknown 必须带出去（否则受理事实无凭证）。
+func TestConfirmPendingWriteFailureKeepsCardOperationID(t *testing.T) {
+	audit, cards := &memAudit{}, &memCards{}
+	b := newTestBus(audit, cards)
+	b.SetPendingStore(&failingPendingStore{err: errors.New("pending store down")})
+	resp := b.Dispatch(context.Background(), Request{
+		ID: "demo.risky", Params: map[string]any{"target": "prod"}, ConversationID: "cnv_1", Owner: "alice",
+	})
+	if resp.Receipt.State != agentcommand.StateUnknown || !strings.Contains(resp.Receipt.Reason, "confirm pending") {
+		t.Fatalf("pending write failure: %+v", resp.Receipt)
+	}
+	if resp.Receipt.OperationID != "card_x1" || resp.Receipt.Validate() != nil {
+		t.Fatalf("pending write failure dropped the card operation handle: %+v", resp.Receipt)
+	}
+	if len(cards.created) != 1 || len(b.pending) != 0 {
+		t.Fatalf("card created=%d pending=%d", len(cards.created), len(b.pending))
+	}
+	if len(audit.logs) != 1 || audit.logs[0].State != agentcommand.StateUnknown || audit.logs[0].OperationID != "card_x1" {
+		t.Fatalf("audit envelope: %+v", audit.logs)
+	}
+}

internal/server/operation_query.go

@@ -0,0 +1,87 @@
+package server
+
+import (
+	"errors"
+	"net/http"
+
+	"agent-system-backend/internal/cmdbus"
+	"agent-system-backend/internal/store"
+)
+
+// commandOperationQuery 把"已记录 operation 的状态查询"落在既有的 owner+project
+// 作用域审计查询上（store.ListProjectCommandAudits），不新建通用幂等平台：不加表、
+// 不加索引、不引入新的重试语义。命令回执（审计信封）本就是宿主侧的操作记录，
+// handler 自己事务/发件箱里的领域操作表（如文档投递 document_render_deliveries）
+// 仍由各自领域查询负责。
+//
+// 诚实边界：
+//   - 只有成功落下审计信封的 operation 查得到。审计不可用时总线回 unknown +
+//     operationID，但那一行没有落库：这里返回"无记录"，绝不推断"未执行"。
+//   - 扫描有界（最近若干页）：超出窗口的旧操作返回无记录，而不是全表扫描。
+//   - project_id 是追加时按可信会话快照下来的归属；改绑/删除会话不改写历史归属，
+//     与既有项目审计查询同一口径。
+type commandOperationQuery struct{ st *store.Store }
+
+const (
+	operationLookupPageSize = 100
+	operationLookupMaxPages = 20 // 有界扫描：最近 2000 行，超窗即"无记录"
+)
+
+func (q commandOperationQuery) LookupOperation(owner, projectID, operationID string) (cmdbus.OperationRecord, bool, error) {
+	if q.st == nil || owner == "" || projectID == "" || operationID == "" {
+		return cmdbus.OperationRecord{}, false, nil
+	}
+	var before, cutoff int64
+	for page := 0; page < operationLookupMaxPages; page++ {
+		rows, resolvedCutoff, next, err := q.st.ListProjectCommandAudits(owner, projectID, before, cutoff, operationLookupPageSize)
+		if err != nil {
+			return cmdbus.OperationRecord{}, false, err
+		}
+		cutoff = resolvedCutoff // 首帧固定游标，后续页在同一提交前缀内翻页
+		for _, row := range rows {
+			if row.Envelope.OperationID != operationID {
+				continue
+			}
+			return cmdbus.OperationRecord{
+				OperationID: row.Envelope.OperationID,
+				CommandID:   row.Envelope.CommandID,
+				State:       row.Envelope.State,
+				Time:        row.Envelope.Time,
+			}, true, nil
+		}
+		if next == 0 {
+			return cmdbus.OperationRecord{}, false, nil
+		}
+		before = next
+	}
+	return cmdbus.OperationRecord{}, false, nil
+}
+
+// getCommandOperation 是 unknown 回执的对账入口（R7/KTD6）：
+// GET /api/commands/operations/{operationId}?projectId=…
+//
+// 授权复用既有口径：owner 只取自认证上下文（不读请求参数），projectId 仅用于
+// 收窄到该 owner 名下的项目——与 /api/commands/audit 同源，跨租户天然不可见。
+// 查不到一律 404：HTTP 层的"没有记录"同样不得被读成"未执行"。
+func (s *Server) getCommandOperation(w http.ResponseWriter, r *http.Request) {
+	if s.Bus == nil {
+		http.Error(w, "commands disabled", http.StatusServiceUnavailable)
+		return
+	}
+	record, err := s.Bus.LookupOperation(s.owner(r), r.URL.Query().Get("projectId"), r.PathValue("operationId"))
+	switch {
+	case errors.Is(err, cmdbus.ErrOperationScope):
+		http.Error(w, "projectId and operationId are required", http.StatusBadRequest)
+		return
+	case errors.Is(err, cmdbus.ErrOperationQueryUnavailable):
+		http.Error(w, "operation query unavailable", http.StatusServiceUnavailable)
+		return
+	case errors.Is(err, cmdbus.ErrOperationNotRecorded):
+		http.Error(w, "no operation record in this scope", http.StatusNotFound)
+		return
+	case err != nil:
+		writeStoreErr(w, err)
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"operation": record})
+}

internal/server/operation_query_test.go

@@ -0,0 +1,96 @@
+package server
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	agentcommand "agent-command"
+	"agent-system-backend/internal/cmdbus"
+)
+
+// TestCommandOperationLookupIsOwnerProjectScoped 覆盖 U7b/R7 的对账查询：
+// unknown 回执给出的 operationID 能按认证 owner + project 查到落库记录；
+// 跨 owner、错 project、缺 projectId 一律查不到或拒（fail-closed），任何
+// "查不到"都不得被读成"未执行"。
+func TestCommandOperationLookupIsOwnerProjectScoped(t *testing.T) {
+	srv, st := newAuthTestServer(t)
+	srv.Bus = cmdbus.New(st, nil, time.Now)
+	srv.WireBuiltinCommands() // 生产装配点：总线拿到宿主侧对账查询端口
+	h := srv.Handler()
+
+	aliceKey, err := createLegacyAPIKeyFixture(t, st, "alice", "e2e")
+	if err != nil {
+		t.Fatal(err)
+	}
+	bobKey, err := createLegacyAPIKeyFixture(t, st, "bob", "e2e")
+	if err != nil {
+		t.Fatal(err)
+	}
+	project, err := st.CreateProject("alice", "对账项目")
+	if err != nil {
+		t.Fatal(err)
+	}
+	conversation, err := st.CreateConversation("alice", project.ID, "对账会话", "")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// 写库之后才失败的命令：unknown + operationID（审计信封按会话快照落项目）。
+	if err := srv.Bus.RegisterPluginCommand(agentcommand.CommandSpec{ID: "demo.write", Title: "写入"},
+		func(context.Context, cmdbus.Request) (any, error) { return nil, errors.New("ack lost") }); err != nil {
+		t.Fatal(err)
+	}
+	resp := srv.Bus.Dispatch(context.Background(), cmdbus.Request{
+		ID: "demo.write", Owner: "alice", Actor: "alice", ConversationID: conversation.ID,
+	})
+	if resp.Receipt.State != agentcommand.StateUnknown || resp.Receipt.OperationID == "" {
+		t.Fatalf("post-execution failure must be unknown with an operation ID: %+v", resp.Receipt)
+	}
+	operationID := resp.Receipt.OperationID
+
+	get := func(key, url string) *httptest.ResponseRecorder {
+		t.Helper()
+		req := httptest.NewRequest(http.MethodGet, url, nil)
+		req.Header.Set("Authorization", "Bearer "+key)
+		rec := httptest.NewRecorder()
+		h.ServeHTTP(rec, req)
+		return rec
+	}
+
+	rec := get(aliceKey, "/api/commands/operations/"+operationID+"?projectId="+project.ID)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("owner lookup: %d %s", rec.Code, rec.Body.String())
+	}
+	var out struct {
+		Operation struct {
+			OperationID string `json:"OperationID"`
+			CommandID   string `json:"CommandID"`
+			State       string `json:"State"`
+		} `json:"operation"`
+	}
+	if err := json.Unmarshal(rec.Body.Bytes(), &out); err != nil {
+		t.Fatal(err)
+	}
+	if out.Operation.OperationID != operationID || out.Operation.CommandID != "demo.write" || out.Operation.State != string(agentcommand.StateUnknown) {
+		t.Fatalf("lookup projection wrong: %+v", out.Operation)
+	}
+
+	for _, tc := range []struct {
+		name, key, url string
+		want           int
+	}{
+		{"cross owner", bobKey, "/api/commands/operations/" + operationID + "?projectId=" + project.ID, http.StatusNotFound},
+		{"wrong project", aliceKey, "/api/commands/operations/" + operationID + "?projectId=prj_other", http.StatusNotFound},
+		{"missing project", aliceKey, "/api/commands/operations/" + operationID, http.StatusBadRequest},
+		{"missing operation", aliceKey, "/api/commands/operations/op_absent?projectId=" + project.ID, http.StatusNotFound},
+	} {
+		if rec := get(tc.key, tc.url); rec.Code != tc.want {
+			t.Fatalf("%s: %d %s (want %d)", tc.name, rec.Code, rec.Body.String(), tc.want)
+		}
+	}
+}

internal/server/project_iam_integration_test.go

@@ -266,10 +266,13 @@ func newIAMFixture(t *testing.T) *iamFixture {
 		member, _ := req.Params["member"].(string)
 		err := f.provider.addMember(ctx, srv.lifecycleHost(req.Owner), projectID, member)
 		if failure, ok := categorizeWorkFailure(extension.WorkOperationMemberAdd, err); ok {
-			return nil, failure
+			// 假 provider 的每条失败路径都发生在改成员之前（唯一写点在最后一行
+			// 且随后返回 nil），因此显式声明 not-executed：拒绝语义与 4xx 映射
+			// 由此成立，而不是靠“报了错就算没执行”（F10）。
+			return nil, cmdbus.NotExecuted(failure)
 		}
 		if err != nil {
-			return nil, err
+			return nil, cmdbus.NotExecuted(err)
 		}
 		return map[string]any{"ok": true}, nil
 	}); err != nil {

internal/server/server.go

@@ -197,11 +197,14 @@ func (s *Server) recognize(ctx context.Context, text string) intentgate.MatchRes
 
 // WireBuiltinCommands 注册内置命令（`/` 菜单全清单的数据源；处理器为宿主用例适配）。
 // 响应保持既有 {command, ...} 契约（frontend store.sendMessage 按此消费）。
+// 组合根在注入 Bus 之后调用一次（启动期）；此处也是 operationID 对账查询端口的
+// 装配点：总线只在启动时刻拿到宿主端口，不在请求路径上改写总线状态。
 func (s *Server) WireBuiltinCommands() {
 	b := s.Bus
 	if b == nil {
 		return
 	}
+	b.SetOperationQuery(commandOperationQuery{st: s.st})
 	must := func(err error) {
 		if err != nil {
 			panic("server: builtin command: " + err.Error()) // 装配期错误属编程错误
@@ -421,6 +424,9 @@ func (s *Server) Handler() http.Handler {
 	mux.HandleFunc("GET /api/workspaces", s.listWorkspaces)
 	mux.HandleFunc("POST /api/commands/{id}", s.execCommand)
 	mux.HandleFunc("GET /api/commands/audit", s.listAudits)
+	// U7b/R7：operationID 对账查询（unknown 回执的收敛入口；owner 取自认证
+	// 上下文，projectId 只收窄作用域）。
+	mux.HandleFunc("GET /api/commands/operations/{operationId}", s.getCommandOperation)
 	mux.HandleFunc("GET /api/parsers", s.listParsers)
 	mux.HandleFunc("POST /api/projects/{id}/knowledge", s.addKnowledge)
 	mux.HandleFunc("GET /api/knowledge/search", s.searchKnowledge)