diff --git a/packages/server/src/server/agent/providers/opencode/v2/agent.test.ts b/packages/server/src/server/agent/providers/opencode/v2/agent.test.ts
index 9692f33b61..26cb65885d 100644
--- a/packages/server/src/server/agent/providers/opencode/v2/agent.test.ts
+++ b/packages/server/src/server/agent/providers/opencode/v2/agent.test.ts
@@ -5,6 +5,7 @@ import { createTestLogger } from "../../../../../test-utils/test-logger.js";
 import type { AgentStreamEvent } from "../../../agent-sdk-types.js";
 import { OpenCodeV2AgentClient } from "./agent.js";
 import { V2Harness } from "../test-utils/v2-harness.js";
+import type { V2Api } from "./api.js";
 
 function terminalEvents(events: AgentStreamEvent[]) {
   return events.filter(
@@ -266,6 +267,116 @@ describe("OpenCode v2 session lifecycle", () => {
     }
   });
 
+  test("ends the turn when the user denies a tool permission", async () => {
+    const harness = new V2Harness();
+    harness.autoComplete = false;
+    let permission: Awaited<ReturnType<V2Api["permission"]["list"]>>[number] | null = null;
+    harness.api.permission.list = async () => (permission ? [permission] : []);
+    harness.api.permission.reply = async () => {
+      permission = null;
+      harness.active = false;
+      // OpenCode 2.0.20 reports a denied tool call as an interruption without a user reason.
+      harness.push({
+        id: "denied",
+        created: 3,
+        type: "session.execution.interrupted",
+        durable: { aggregateID: "session", seq: 3, version: 1 },
+        data: { sessionID: "session", reason: "shutdown" },
+      });
+    };
+    const client = new OpenCodeV2AgentClient({
+      logger: createTestLogger(),
+      runtime: harness.runtime,
+    });
+    const session = await client.createSession({ provider: "opencode", cwd: "/tmp/project" });
+    const events: AgentStreamEvent[] = [];
+    session.subscribe((event) => events.push(event));
+    try {
+      await session.startTurn("run printf");
+      await expect.poll(() => harness.prompts).toHaveLength(1);
+      permission = {
+        id: "approval",
+        sessionID: "session",
+        action: "shell",
+        resources: ["printf TOOL_PERMISSION_QA"],
+      };
+      harness.push({
+        id: "asked",
+        created: 2,
+        type: "permission.asked",
+        data: permission,
+      });
+      await expect.poll(() => session.getPendingPermissions()).toHaveLength(1);
+
+      await session.respondToPermission("approval", { behavior: "deny" });
+
+      await expect.poll(() => terminalEvents(events)).toHaveLength(1);
+      expect(terminalEvents(events)[0]).toMatchObject({ type: "turn_canceled" });
+
+      await session.startTurn("next message");
+      await expect.poll(() => harness.prompts).toHaveLength(2);
+      harness.finishExecution();
+      await expect.poll(() => terminalEvents(events)).toHaveLength(2);
+      expect(terminalEvents(events)[1]).toMatchObject({ type: "turn_completed" });
+    } finally {
+      await session.close();
+    }
+  });
+
+  test("keeps the turn resumable after the user denies a child session's permission", async () => {
+    const harness = new V2Harness();
+    harness.autoComplete = false;
+    const child = { ...harness.info, id: "child", parentID: "session" };
+    harness.api.session.list = async (input) => ({
+      data: input?.parentID === "session" ? [child] : [],
+      cursor: {},
+    });
+    let permission: Awaited<ReturnType<V2Api["permission"]["list"]>>[number] | null = {
+      id: "child-approval",
+      sessionID: "child",
+      action: "shell",
+      resources: ["pwd"],
+    };
+    harness.api.permission.list = async (input) =>
+      permission && input.sessionID === "child" ? [permission] : [];
+    harness.api.permission.reply = async () => {
+      permission = null;
+    };
+    const client = new OpenCodeV2AgentClient({
+      logger: createTestLogger(),
+      runtime: harness.runtime,
+    });
+    const session = await client.createSession({ provider: "opencode", cwd: "/tmp/project" });
+    const events: AgentStreamEvent[] = [];
+    session.subscribe((event) => events.push(event));
+    try {
+      await session.startTurn("delegate work");
+      await expect.poll(() => harness.prompts).toHaveLength(1);
+      expect(session.getPendingPermissions()).toHaveLength(1);
+
+      await session.respondToPermission("child-approval", { behavior: "deny" });
+
+      harness.active = false;
+      harness.push({
+        id: "shutdown",
+        created: 3,
+        type: "session.execution.interrupted",
+        durable: { aggregateID: "session", seq: 3, version: 1 },
+        data: { sessionID: "session", reason: "shutdown" },
+      });
+      const reads = harness.activeReads;
+      harness.push({ id: "reconnect", created: 4, type: "server.connected", data: {} });
+      await expect.poll(() => harness.activeReads).toBeGreaterThan(reads);
+      expect(terminalEvents(events)).toEqual([]);
+      harness.startExecution();
+      harness.finishExecution();
+      await expect.poll(() => terminalEvents(events)).toHaveLength(1);
+      expect(terminalEvents(events)[0]).toMatchObject({ type: "turn_completed" });
+    } finally {
+      await session.close();
+    }
+  });
+
   test("recovers the latest execution from the durable log when shutdown and resume events were missed", async () => {
     const harness = new V2Harness();
     harness.autoComplete = false;
diff --git a/packages/server/src/server/agent/providers/opencode/v2/permissions.ts b/packages/server/src/server/agent/providers/opencode/v2/permissions.ts
index 26f72b77ad..cc13b99e4b 100644
--- a/packages/server/src/server/agent/providers/opencode/v2/permissions.ts
+++ b/packages/server/src/server/agent/providers/opencode/v2/permissions.ts
@@ -33,8 +33,11 @@ export class SessionPermissions {
   list() {
     return [...this.pending.values()];
   }
-  isQuestion(requestId: string, sessionID: string) {
-    return this.forms.get(requestId)?.sessionID === sessionID;
+  isOwnedBy(requestId: string, sessionID: string) {
+    return (
+      this.forms.get(requestId)?.sessionID === sessionID ||
+      this.permissionOwners.get(requestId) === sessionID
+    );
   }
   async respondToPermission(requestId: string, response: AgentPermissionResponse) {
     const form = this.forms.get(requestId);
diff --git a/packages/server/src/server/agent/providers/opencode/v2/session.ts b/packages/server/src/server/agent/providers/opencode/v2/session.ts
index 5db5a504e4..5cd45b1ff7 100644
--- a/packages/server/src/server/agent/providers/opencode/v2/session.ts
+++ b/packages/server/src/server/agent/providers/opencode/v2/session.ts
@@ -405,10 +405,10 @@ export class OpenCodeV2Session implements AgentSession {
   }
   async respondToPermission(requestId: string, response: AgentPermissionResponse) {
     await this.reconnectIfExited();
-    const dismissesQuestion =
-      response.behavior === "deny" && this.permissions.isQuestion(requestId, this.id);
+    const deniesOwnRequest =
+      response.behavior === "deny" && this.permissions.isOwnedBy(requestId, this.id);
     await this.permissions.respondToPermission(requestId, response);
-    if (dismissesQuestion) this.turns.questionDismissed();
+    if (deniesOwnRequest) this.turns.requestDenied();
   }
   private async reconcileSnapshot() {
     const [info, history] = await Promise.all([
diff --git a/packages/server/src/server/agent/providers/opencode/v2/turns.ts b/packages/server/src/server/agent/providers/opencode/v2/turns.ts
index a1d7b3d80a..2b2c21d0c5 100644
--- a/packages/server/src/server/agent/providers/opencode/v2/turns.ts
+++ b/packages/server/src/server/agent/providers/opencode/v2/turns.ts
@@ -60,7 +60,7 @@ interface Turn {
   completion: Promise<void>;
   settle(): void;
   accepted: boolean;
-  questionDismissed: boolean;
+  requestDenied: boolean;
 }
 
 export class SessionTurns {
@@ -113,7 +113,7 @@ export class SessionTurns {
       settle,
       accepted,
       output,
-      questionDismissed: false,
+      requestDenied: false,
     };
     this.turn = turn;
     this.execution = null;
@@ -164,11 +164,11 @@ export class SessionTurns {
     this.sequence = event.durable.seq;
     this.requestReconciliation();
   }
-  // OpenCode ends the execution when the user dismisses its question, but reports the
-  // interruption as "shutdown", the same reason as an execution it will resume.
-  questionDismissed() {
+  // OpenCode ends the execution when the user denies its permission or dismisses its question,
+  // but reports the interruption as "shutdown", the same reason as an execution it will resume.
+  requestDenied() {
     if (!this.turn) return;
-    this.turn.questionDismissed = true;
+    this.turn.requestDenied = true;
     this.requestReconciliation();
   }
   private requestReconciliation() {
@@ -227,7 +227,7 @@ export class SessionTurns {
       execution.type === "session.execution.started" ||
       (execution.type === "session.execution.interrupted" &&
         execution.data.reason === "shutdown" &&
-        !turn.questionDismissed)
+        !turn.requestDenied)
     )
       return;
     // Read the final history only after observing idle. Never turn an observation transport error into an execution failure.