fix(server): support OpenCode full-access approvals (#595)

* fix(server): support OpenCode full-access approvals

* fix(opencode): unconditionally auto-approve tool permissions in full-access mode

OpenCode permissions that resolve to allow do not surface prompts in the first place, so checking runtime permission rules before replying made Paseo full-access misleading. Permissions that default to ask, like external_directory and doom_loop, would still surface even in full-access.

Make full-access match OpenCode's own --dangerously-skip-permissions behavior by replying "once" to every tool permission prompt, while still letting reply failures fall back to surfacing the permission to the user.

---------

Co-authored-by: Mohamed Boudra <boudra.moha@gmail.com>

packages/server/src/server/agent/provider-manifest.ts

@@ -107,6 +107,13 @@ const OPENCODE_MODES: AgentProviderModeDefinition[] = [
     icon: "ShieldCheck",
     colorTier: "moderate",
   },
+  {
+    id: "full-access",
+    label: "Full Access",
+    description: "Automatically approves all tool permission prompts for the session",
+    icon: "ShieldAlert",
+    colorTier: "dangerous",
+  },
   {
     id: "plan",
     label: "Plan",

packages/server/src/server/agent/providers/opencode-agent.full-access.test.ts

@@ -0,0 +1,235 @@
+import { afterEach, describe, expect, test, vi } from "vitest";
+
+vi.mock("@opencode-ai/sdk/v2/client", () => ({
+  createOpencodeClient: vi.fn(),
+}));
+
+import { createOpencodeClient } from "@opencode-ai/sdk/v2/client";
+
+import { createTestLogger } from "../../../test-utils/test-logger.js";
+import type { AgentStreamEvent } from "../agent-sdk-types.js";
+import { OpenCodeAgentClient, OpenCodeServerManager } from "./opencode-agent.js";
+
+interface MockOpenCodeClientOptions {
+  agents?: unknown[];
+  events?: unknown[];
+}
+
+function createEventStream(events: unknown[]): AsyncGenerator<never> {
+  return (async function* () {
+    for (const event of events) {
+      yield event as never;
+    }
+  })();
+}
+
+function mockServerManager(): void {
+  vi.spyOn(OpenCodeServerManager, "getInstance").mockReturnValue({
+    acquire: vi.fn().mockResolvedValue({
+      server: { port: 1234, url: "http://127.0.0.1:1234" },
+      release: vi.fn(),
+    }),
+  } as never);
+}
+
+function mockOpenCodeClient(options: MockOpenCodeClientOptions = {}) {
+  const promptAsync = vi.fn().mockResolvedValue({});
+  const permissionReply = vi.fn().mockResolvedValue({});
+  const questionReply = vi.fn().mockResolvedValue({});
+  const questionReject = vi.fn().mockResolvedValue({});
+  const appAgents = vi.fn().mockResolvedValue({ data: options.agents ?? [] });
+  const events = options.events ?? [idleEvent()];
+
+  vi.mocked(createOpencodeClient).mockReturnValue({
+    session: {
+      create: vi.fn().mockResolvedValue({ data: { id: "session-1" } }),
+      promptAsync,
+      abort: vi.fn().mockResolvedValue({}),
+      update: vi.fn().mockResolvedValue({}),
+    },
+    provider: {
+      list: vi.fn().mockResolvedValue({ data: { connected: [], all: [] } }),
+    },
+    event: {
+      subscribe: vi.fn().mockResolvedValue({ stream: createEventStream(events) }),
+    },
+    command: {
+      list: vi.fn().mockResolvedValue({ data: [] }),
+    },
+    app: {
+      agents: appAgents,
+    },
+    permission: {
+      reply: permissionReply,
+    },
+    question: {
+      reply: questionReply,
+      reject: questionReject,
+    },
+  } as never);
+
+  return { appAgents, permissionReply, promptAsync, questionReject, questionReply };
+}
+
+function idleEvent(): unknown {
+  return {
+    type: "session.idle",
+    properties: { sessionID: "session-1" },
+  };
+}
+
+function toolPermissionEvent(): unknown {
+  return {
+    type: "permission.asked",
+    properties: {
+      id: "permission-1",
+      sessionID: "session-1",
+      permission: "bash",
+      patterns: [],
+      metadata: {
+        command: "npm test",
+        reason: "Run verification",
+      },
+    },
+  };
+}
+
+function questionEvent(): unknown {
+  return {
+    type: "question.asked",
+    properties: {
+      id: "question-1",
+      sessionID: "session-1",
+      questions: [
+        {
+          question: "Which option should OpenCode use?",
+          header: "Decision",
+          options: [{ label: "Proceed", description: "Continue with the change" }],
+        },
+      ],
+      tool: {
+        messageID: "message-1",
+        callID: "call-1",
+      },
+    },
+  };
+}
+
+describe("OpenCode full-access mode", () => {
+  afterEach(() => {
+    vi.restoreAllMocks();
+  });
+
+  test("includes virtual full-access mode with dynamic OpenCode agents", async () => {
+    mockServerManager();
+    mockOpenCodeClient({
+      agents: [
+        { name: "build", mode: "primary", hidden: false, description: "Build agent" },
+        { name: "paseo-custom", mode: "primary", hidden: false, description: "Custom agent" },
+      ],
+    });
+
+    const client = new OpenCodeAgentClient(createTestLogger());
+    const modes = await client.listModes({ cwd: "/tmp/project", force: false });
+
+    expect(modes.map((mode) => mode.id)).toEqual(["build", "full-access", "plan", "paseo-custom"]);
+    expect(modes.find((mode) => mode.id === "full-access")).toMatchObject({
+      label: "Full Access",
+      description: "Automatically approves all tool permission prompts for the session",
+    });
+  });
+
+  test("reports full-access but sends prompts through OpenCode build agent", async () => {
+    mockServerManager();
+    const { promptAsync } = mockOpenCodeClient();
+
+    const client = new OpenCodeAgentClient(createTestLogger());
+    const session = await client.createSession({
+      provider: "opencode",
+      cwd: "/tmp/project",
+      modeId: "full-access",
+    });
+
+    expect(await session.getCurrentMode()).toBe("full-access");
+
+    await session.run("Implement the change");
+
+    expect(promptAsync).toHaveBeenCalledTimes(1);
+    expect(promptAsync).toHaveBeenCalledWith(expect.objectContaining({ agent: "build" }));
+
+    await session.close();
+  });
+
+  test("auto-approves tool permissions in full-access without surfacing them", async () => {
+    mockServerManager();
+    const { permissionReply } = mockOpenCodeClient({
+      events: [toolPermissionEvent(), idleEvent()],
+    });
+    const receivedEvents: AgentStreamEvent[] = [];
+
+    const client = new OpenCodeAgentClient(createTestLogger());
+    const session = await client.createSession({
+      provider: "opencode",
+      cwd: "/tmp/project",
+      modeId: "full-access",
+    });
+    session.subscribe((event) => receivedEvents.push(event));
+
+    await session.run("Run verification");
+
+    expect(permissionReply).toHaveBeenCalledTimes(1);
+    expect(permissionReply).toHaveBeenCalledWith({
+      requestID: "permission-1",
+      directory: "/tmp/project",
+      reply: "once",
+    });
+    expect(receivedEvents.filter((event) => event.type === "permission_requested")).toEqual([]);
+    expect(session.getPendingPermissions()).toEqual([]);
+
+    await session.close();
+  });
+
+  test("keeps questions separate from full-access tool auto-approval", async () => {
+    mockServerManager();
+    const { permissionReply, questionReply } = mockOpenCodeClient({
+      events: [questionEvent(), idleEvent()],
+    });
+    const receivedEvents: AgentStreamEvent[] = [];
+
+    const client = new OpenCodeAgentClient(createTestLogger());
+    const session = await client.createSession({
+      provider: "opencode",
+      cwd: "/tmp/project",
+      modeId: "full-access",
+    });
+    session.subscribe((event) => receivedEvents.push(event));
+
+    await session.run("Ask a question");
+
+    expect(receivedEvents.filter((event) => event.type === "permission_requested")).toEqual([
+      expect.objectContaining({
+        request: expect.objectContaining({
+          id: "question-1",
+          kind: "question",
+        }),
+      }),
+    ]);
+    expect(session.getPendingPermissions()).toHaveLength(1);
+
+    await session.respondToPermission("question-1", {
+      behavior: "allow",
+      updatedInput: { answers: { Decision: "Proceed" } },
+    });
+
+    expect(questionReply).toHaveBeenCalledTimes(1);
+    expect(questionReply).toHaveBeenCalledWith({
+      requestID: "question-1",
+      directory: "/tmp/project",
+      answers: [["Proceed"]],
+    });
+    expect(permissionReply).not.toHaveBeenCalled();
+    expect(session.getPendingPermissions()).toEqual([]);
+
+    await session.close();
+  });
+});

packages/server/src/server/agent/providers/opencode-agent.ts

@@ -67,12 +67,20 @@ const OPENCODE_CAPABILITIES: AgentCapabilityFlags = {
   supportsToolInvocations: true,
 };
 
+const OPENCODE_BUILD_MODE_ID = "build";
+const OPENCODE_FULL_ACCESS_MODE_ID = "full-access";
+
 const DEFAULT_MODES: AgentMode[] = [
   {
-    id: "build",
+    id: OPENCODE_BUILD_MODE_ID,
     label: "Build",
     description: "Allows edits and tool execution for implementation work",
   },
+  {
+    id: OPENCODE_FULL_ACCESS_MODE_ID,
+    label: "Full Access",
+    description: "Automatically approves all tool permission prompts for the session",
+  },
   {
     id: "plan",
     label: "Plan",
@@ -404,11 +412,26 @@ function resolvePartDedupeKey(
 function normalizeOpenCodeModeId(modeId: string | null | undefined): string {
   const trimmed = typeof modeId === "string" ? modeId.trim() : "";
   if (!trimmed || trimmed === "default") {
-    return "build";
+    return OPENCODE_BUILD_MODE_ID;
   }
   return trimmed;
 }
 
+function resolveOpenCodeRuntimeAgentId(modeId: string | null | undefined): string {
+  const normalizedModeId = normalizeOpenCodeModeId(modeId);
+  return normalizedModeId === OPENCODE_FULL_ACCESS_MODE_ID
+    ? OPENCODE_BUILD_MODE_ID
+    : normalizedModeId;
+}
+
+function mergeOpenCodeModes(discoveredModes: AgentMode[]): AgentMode[] {
+  const modesById = new Map(DEFAULT_MODES.map((mode) => [mode.id, mode]));
+  for (const mode of discoveredModes) {
+    modesById.set(mode.id, mode);
+  }
+  return sortOpenCodeModes(Array.from(modesById.values()));
+}
+
 function sortOpenCodeModes(modes: AgentMode[]): AgentMode[] {
   const order = new Map(DEFAULT_MODES.map((mode, index) => [mode.id, index]));
   return [...modes].sort((left, right) => {
@@ -1176,7 +1199,7 @@ export class OpenCodeAgentClient implements AgentClient {
               : DEFAULT_MODES.find((mode) => mode.id === agent.name)?.description,
         }));
 
-      return discovered.length > 0 ? sortOpenCodeModes(discovered) : DEFAULT_MODES;
+      return mergeOpenCodeModes(discovered);
     } finally {
       acquisition.release();
     }
@@ -2031,7 +2054,7 @@ class OpenCodeAgentSession implements AgentSession {
     const model = this.parseModel(this.config.model);
     const thinkingOptionId = this.config.thinkingOptionId;
     const effectiveVariant = thinkingOptionId ?? undefined;
-    const effectiveMode = normalizeOpenCodeModeId(this.currentMode);
+    const effectiveMode = resolveOpenCodeRuntimeAgentId(this.currentMode);
 
     const turnId = this.createTurnId();
     this.activeForegroundTurnId = turnId;
@@ -2205,7 +2228,7 @@ class OpenCodeAgentSession implements AgentSession {
           break;
         }
 
-        const translated = this.translateEvent(event);
+        const translated = await this.translateEvent(event);
         for (const e of translated) {
           if (this.activeForegroundTurnId !== turnId) {
             return;
@@ -2400,23 +2423,20 @@ class OpenCodeAgentSession implements AgentSession {
     const response = await this.client.app.agents({
       directory: this.config.cwd,
     });
+    const agents = response.error || !response.data ? [] : response.data;
 
-    const discoveredModes =
+    const discoveredModes = agents
-      response.error || !response.data
+      .filter((agent) => agent.mode === "primary" && agent.hidden !== true)
-        ? []
+      .map((agent) => ({
-        : response.data
+        id: agent.name,
-            .filter((agent) => agent.mode === "primary" && agent.hidden !== true)
+        label: agent.name.charAt(0).toUpperCase() + agent.name.slice(1),
-            .map((agent) => ({
+        description:
-              id: agent.name,
+          typeof agent.description === "string" && agent.description.trim().length > 0
-              label: agent.name.charAt(0).toUpperCase() + agent.name.slice(1),
+            ? agent.description.trim()
-              description:
+            : DEFAULT_MODES.find((mode) => mode.id === agent.name)?.description,
-                typeof agent.description === "string" && agent.description.trim().length > 0
+      }));
-                  ? agent.description.trim()
-                  : DEFAULT_MODES.find((mode) => mode.id === agent.name)?.description,
-            }));
 
-    this.availableModesCache =
+    this.availableModesCache = mergeOpenCodeModes(discoveredModes);
-      discoveredModes.length > 0 ? sortOpenCodeModes(discoveredModes) : DEFAULT_MODES;
     return this.availableModesCache;
   }
 
@@ -2649,7 +2669,7 @@ class OpenCodeAgentSession implements AgentSession {
     );
   }
 
-  private translateEvent(event: OpenCodeEvent): AgentStreamEvent[] {
+  private async translateEvent(event: OpenCodeEvent): Promise<AgentStreamEvent[]> {
     const translated = translateOpenCodeEvent(event, {
       sessionId: this.sessionId,
       messageRoles: this.messageRoles,
@@ -2666,8 +2686,14 @@ class OpenCodeAgentSession implements AgentSession {
       },
     });
 
+    const events: AgentStreamEvent[] = [];
+
     for (const translatedEvent of translated) {
       if (translatedEvent.type === "permission_requested") {
+        const autoApproved = await this.tryAutoApproveToolPermission(translatedEvent.request);
+        if (autoApproved) {
+          continue;
+        }
         this.pendingPermissions.set(translatedEvent.request.id, translatedEvent.request);
       }
       if (translatedEvent.type === "turn_completed") {
@@ -2678,9 +2704,31 @@ class OpenCodeAgentSession implements AgentSession {
         this.accumulatedUsage =
           contextWindowMaxTokens !== undefined ? { contextWindowMaxTokens } : {};
       }
+      events.push(translatedEvent);
     }
 
-    return translated;
+    return events;
+  }
+
+  private async tryAutoApproveToolPermission(request: AgentPermissionRequest): Promise<boolean> {
+    if (this.currentMode !== OPENCODE_FULL_ACCESS_MODE_ID || request.kind !== "tool") {
+      return false;
+    }
+
+    try {
+      await this.client.permission.reply({
+        requestID: request.id,
+        directory: this.config.cwd,
+        reply: "once",
+      });
+      return true;
+    } catch (error) {
+      this.logger.warn(
+        { err: error, requestId: request.id },
+        "Failed to auto-approve OpenCode tool permission",
+      );
+      return false;
+    }
   }
 
   private resolveSelectedModelContextWindowMaxTokens(): number | undefined {