fix(acp): strip provider auth env for child ACP processes (openclaw#42250)

Verified:
- pnpm build
- pnpm check
- pnpm test:macmini

Co-authored-by: rodrigouroz <384037+rodrigouroz@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

extensions/acpx/src/config.test.ts

@@ -5,7 +5,6 @@ import {
   ACPX_PINNED_VERSION,
   createAcpxPluginConfigSchema,
   resolveAcpxPluginConfig,
-  toAcpMcpServers,
 } from "./config.js";
 
 describe("acpx plugin config parsing", () => {
@@ -20,9 +19,9 @@ describe("acpx plugin config parsing", () => {
     expect(resolved.command).toBe(ACPX_BUNDLED_BIN);
     expect(resolved.expectedVersion).toBe(ACPX_PINNED_VERSION);
     expect(resolved.allowPluginLocalInstall).toBe(true);
+    expect(resolved.stripProviderAuthEnvVars).toBe(true);
     expect(resolved.cwd).toBe(path.resolve("/tmp/workspace"));
     expect(resolved.strictWindowsCmdWrapper).toBe(true);
-    expect(resolved.mcpServers).toEqual({});
   });
 
   it("accepts command override and disables plugin-local auto-install", () => {
@@ -37,6 +36,7 @@ describe("acpx plugin config parsing", () => {
     expect(resolved.command).toBe(path.resolve(command));
     expect(resolved.expectedVersion).toBeUndefined();
     expect(resolved.allowPluginLocalInstall).toBe(false);
+    expect(resolved.stripProviderAuthEnvVars).toBe(false);
   });
 
   it("resolves relative command paths against workspace directory", () => {
@@ -50,6 +50,7 @@ describe("acpx plugin config parsing", () => {
     expect(resolved.command).toBe(path.resolve("/home/user/repos/openclaw", "../acpx/dist/cli.js"));
     expect(resolved.expectedVersion).toBeUndefined();
     expect(resolved.allowPluginLocalInstall).toBe(false);
+    expect(resolved.stripProviderAuthEnvVars).toBe(false);
   });
 
   it("keeps bare command names as-is", () => {
@@ -63,6 +64,7 @@ describe("acpx plugin config parsing", () => {
     expect(resolved.command).toBe("acpx");
     expect(resolved.expectedVersion).toBeUndefined();
     expect(resolved.allowPluginLocalInstall).toBe(false);
+    expect(resolved.stripProviderAuthEnvVars).toBe(false);
   });
 
   it("accepts exact expectedVersion override", () => {
@@ -78,6 +80,7 @@ describe("acpx plugin config parsing", () => {
     expect(resolved.command).toBe(path.resolve(command));
     expect(resolved.expectedVersion).toBe("0.1.99");
     expect(resolved.allowPluginLocalInstall).toBe(false);
+    expect(resolved.stripProviderAuthEnvVars).toBe(false);
   });
 
   it("treats expectedVersion=any as no version constraint", () => {
@@ -134,97 +137,4 @@ describe("acpx plugin config parsing", () => {
       }),
     ).toThrow("strictWindowsCmdWrapper must be a boolean");
   });
-
-  it("accepts mcp server maps", () => {
-    const resolved = resolveAcpxPluginConfig({
-      rawConfig: {
-        mcpServers: {
-          canva: {
-            command: "npx",
-            args: ["-y", "mcp-remote@latest", "https://mcp.canva.com/mcp"],
-            env: {
-              CANVA_TOKEN: "secret",
-            },
-          },
-        },
-      },
-      workspaceDir: "/tmp/workspace",
-    });
-
-    expect(resolved.mcpServers).toEqual({
-      canva: {
-        command: "npx",
-        args: ["-y", "mcp-remote@latest", "https://mcp.canva.com/mcp"],
-        env: {
-          CANVA_TOKEN: "secret",
-        },
-      },
-    });
-  });
-
-  it("rejects invalid mcp server definitions", () => {
-    expect(() =>
-      resolveAcpxPluginConfig({
-        rawConfig: {
-          mcpServers: {
-            canva: {
-              command: "npx",
-              args: ["-y", 1],
-            },
-          },
-        },
-        workspaceDir: "/tmp/workspace",
-      }),
-    ).toThrow(
-      "mcpServers.canva must have a command string, optional args array, and optional env object",
-    );
-  });
-
-  it("schema accepts mcp server config", () => {
-    const schema = createAcpxPluginConfigSchema();
-    if (!schema.safeParse) {
-      throw new Error("acpx config schema missing safeParse");
-    }
-    const parsed = schema.safeParse({
-      mcpServers: {
-        canva: {
-          command: "npx",
-          args: ["-y", "mcp-remote@latest"],
-          env: {
-            CANVA_TOKEN: "secret",
-          },
-        },
-      },
-    });
-
-    expect(parsed.success).toBe(true);
-  });
-});
-
-describe("toAcpMcpServers", () => {
-  it("converts plugin config maps into ACP stdio MCP entries", () => {
-    expect(
-      toAcpMcpServers({
-        canva: {
-          command: "npx",
-          args: ["-y", "mcp-remote@latest", "https://mcp.canva.com/mcp"],
-          env: {
-            CANVA_TOKEN: "secret",
-          },
-        },
-      }),
-    ).toEqual([
-      {
-        name: "canva",
-        command: "npx",
-        args: ["-y", "mcp-remote@latest", "https://mcp.canva.com/mcp"],
-        env: [
-          {
-            name: "CANVA_TOKEN",
-            value: "secret",
-          },
-        ],
-      },
-    ]);
-  });
 });

extensions/acpx/src/config.ts

@@ -47,6 +47,7 @@ export type ResolvedAcpxPluginConfig = {
   command: string;
   expectedVersion?: string;
   allowPluginLocalInstall: boolean;
+  stripProviderAuthEnvVars: boolean;
   installCommand: string;
   cwd: string;
   permissionMode: AcpxPermissionMode;
@@ -332,6 +333,7 @@ export function resolveAcpxPluginConfig(params: {
     workspaceDir: params.workspaceDir,
   });
   const allowPluginLocalInstall = command === ACPX_BUNDLED_BIN;
+  const stripProviderAuthEnvVars = command === ACPX_BUNDLED_BIN;
   const configuredExpectedVersion = normalized.expectedVersion;
   const expectedVersion =
     configuredExpectedVersion === ACPX_VERSION_ANY
@@ -343,6 +345,7 @@ export function resolveAcpxPluginConfig(params: {
     command,
     expectedVersion,
     allowPluginLocalInstall,
+    stripProviderAuthEnvVars,
     installCommand,
     cwd,
     permissionMode: normalized.permissionMode ?? DEFAULT_PERMISSION_MODE,

extensions/acpx/src/ensure.test.ts

@@ -77,6 +77,7 @@ describe("acpx ensure", () => {
       command: "/plugin/node_modules/.bin/acpx",
       args: ["--version"],
       cwd: "/plugin",
+      stripProviderAuthEnvVars: undefined,
     });
   });
 
@@ -148,6 +149,30 @@ describe("acpx ensure", () => {
       command: "/custom/acpx",
       args: ["--help"],
       cwd: "/custom",
+      stripProviderAuthEnvVars: undefined,
+    });
+  });
+
+  it("forwards stripProviderAuthEnvVars to version checks", async () => {
+    spawnAndCollectMock.mockResolvedValueOnce({
+      stdout: "Usage: acpx [options]\n",
+      stderr: "",
+      code: 0,
+      error: null,
+    });
+
+    await checkAcpxVersion({
+      command: "/plugin/node_modules/.bin/acpx",
+      cwd: "/plugin",
+      expectedVersion: undefined,
+      stripProviderAuthEnvVars: true,
+    });
+
+    expect(spawnAndCollectMock).toHaveBeenCalledWith({
+      command: "/plugin/node_modules/.bin/acpx",
+      args: ["--help"],
+      cwd: "/plugin",
+      stripProviderAuthEnvVars: true,
     });
   });
 
@@ -186,6 +211,54 @@ describe("acpx ensure", () => {
     });
   });
 
+  it("threads stripProviderAuthEnvVars through version probes and install", async () => {
+    spawnAndCollectMock
+      .mockResolvedValueOnce({
+        stdout: "acpx 0.0.9\n",
+        stderr: "",
+        code: 0,
+        error: null,
+      })
+      .mockResolvedValueOnce({
+        stdout: "added 1 package\n",
+        stderr: "",
+        code: 0,
+        error: null,
+      })
+      .mockResolvedValueOnce({
+        stdout: `acpx ${ACPX_PINNED_VERSION}\n`,
+        stderr: "",
+        code: 0,
+        error: null,
+      });
+
+    await ensureAcpx({
+      command: "/plugin/node_modules/.bin/acpx",
+      pluginRoot: "/plugin",
+      expectedVersion: ACPX_PINNED_VERSION,
+      stripProviderAuthEnvVars: true,
+    });
+
+    expect(spawnAndCollectMock.mock.calls[0]?.[0]).toMatchObject({
+      command: "/plugin/node_modules/.bin/acpx",
+      args: ["--version"],
+      cwd: "/plugin",
+      stripProviderAuthEnvVars: true,
+    });
+    expect(spawnAndCollectMock.mock.calls[1]?.[0]).toMatchObject({
+      command: "npm",
+      args: ["install", "--omit=dev", "--no-save", `acpx@${ACPX_PINNED_VERSION}`],
+      cwd: "/plugin",
+      stripProviderAuthEnvVars: true,
+    });
+    expect(spawnAndCollectMock.mock.calls[2]?.[0]).toMatchObject({
+      command: "/plugin/node_modules/.bin/acpx",
+      args: ["--version"],
+      cwd: "/plugin",
+      stripProviderAuthEnvVars: true,
+    });
+  });
+
   it("fails with actionable error when npm install fails", async () => {
     spawnAndCollectMock
       .mockResolvedValueOnce({

extensions/acpx/src/ensure.ts

@@ -102,6 +102,7 @@ export async function checkAcpxVersion(params: {
   command: string;
   cwd?: string;
   expectedVersion?: string;
+  stripProviderAuthEnvVars?: boolean;
   spawnOptions?: SpawnCommandOptions;
 }): Promise<AcpxVersionCheckResult> {
   const expectedVersion = params.expectedVersion?.trim() || undefined;
@@ -113,6 +114,7 @@ export async function checkAcpxVersion(params: {
     command: params.command,
     args: probeArgs,
     cwd,
+    stripProviderAuthEnvVars: params.stripProviderAuthEnvVars,
   };
   let result: Awaited<ReturnType<typeof spawnAndCollect>>;
   try {
@@ -198,6 +200,7 @@ export async function ensureAcpx(params: {
   pluginRoot?: string;
   expectedVersion?: string;
   allowInstall?: boolean;
+  stripProviderAuthEnvVars?: boolean;
   spawnOptions?: SpawnCommandOptions;
 }): Promise<void> {
   if (pendingEnsure) {
@@ -214,6 +217,7 @@ export async function ensureAcpx(params: {
       command: params.command,
       cwd: pluginRoot,
       expectedVersion,
+      stripProviderAuthEnvVars: params.stripProviderAuthEnvVars,
       spawnOptions: params.spawnOptions,
     });
     if (precheck.ok) {
@@ -231,6 +235,7 @@ export async function ensureAcpx(params: {
       command: "npm",
       args: ["install", "--omit=dev", "--no-save", `acpx@${installVersion}`],
       cwd: pluginRoot,
+      stripProviderAuthEnvVars: params.stripProviderAuthEnvVars,
     });
 
     if (install.error) {
@@ -252,6 +257,7 @@ export async function ensureAcpx(params: {
       command: params.command,
       cwd: pluginRoot,
       expectedVersion,
+      stripProviderAuthEnvVars: params.stripProviderAuthEnvVars,
       spawnOptions: params.spawnOptions,
     });
 

extensions/acpx/src/runtime-internals/mcp-agent-command.test.ts

@@ -0,0 +1,59 @@
+import { describe, expect, it, vi } from "vitest";
+
+const { spawnAndCollectMock } = vi.hoisted(() => ({
+  spawnAndCollectMock: vi.fn(),
+}));
+
+vi.mock("./process.js", () => ({
+  spawnAndCollect: spawnAndCollectMock,
+}));
+
+import { __testing, resolveAcpxAgentCommand } from "./mcp-agent-command.js";
+
+describe("resolveAcpxAgentCommand", () => {
+  it("threads stripProviderAuthEnvVars through the config show probe", async () => {
+    spawnAndCollectMock.mockResolvedValueOnce({
+      stdout: JSON.stringify({
+        agents: {
+          codex: {
+            command: "custom-codex",
+          },
+        },
+      }),
+      stderr: "",
+      code: 0,
+      error: null,
+    });
+
+    const command = await resolveAcpxAgentCommand({
+      acpxCommand: "/plugin/node_modules/.bin/acpx",
+      cwd: "/plugin",
+      agent: "codex",
+      stripProviderAuthEnvVars: true,
+    });
+
+    expect(command).toBe("custom-codex");
+    expect(spawnAndCollectMock).toHaveBeenCalledWith(
+      {
+        command: "/plugin/node_modules/.bin/acpx",
+        args: ["--cwd", "/plugin", "config", "show"],
+        cwd: "/plugin",
+        stripProviderAuthEnvVars: true,
+      },
+      undefined,
+    );
+  });
+});
+
+describe("buildMcpProxyAgentCommand", () => {
+  it("escapes Windows-style proxy paths without double-escaping backslashes", () => {
+    const quoted = __testing.quoteCommandPart(
+      "C:\\repo\\extensions\\acpx\\src\\runtime-internals\\mcp-proxy.mjs",
+    );
+
+    expect(quoted).toBe(
+      '"C:\\\\repo\\\\extensions\\\\acpx\\\\src\\\\runtime-internals\\\\mcp-proxy.mjs"',
+    );
+    expect(quoted).not.toContain("\\\\\\");
+  });
+});

extensions/acpx/src/runtime-internals/mcp-agent-command.ts

@@ -37,6 +37,10 @@ function quoteCommandPart(value: string): string {
   return `"${value.replace(/["\\]/g, "\\$&")}"`;
 }
 
+export const __testing = {
+  quoteCommandPart,
+};
+
 function toCommandLine(parts: string[]): string {
   return parts.map(quoteCommandPart).join(" ");
 }
@@ -62,6 +66,7 @@ function readConfiguredAgentOverrides(value: unknown): Record<string, string> {
 async function loadAgentOverrides(params: {
   acpxCommand: string;
   cwd: string;
+  stripProviderAuthEnvVars?: boolean;
   spawnOptions?: SpawnCommandOptions;
 }): Promise<Record<string, string>> {
   const result = await spawnAndCollect(
@@ -69,6 +74,7 @@ async function loadAgentOverrides(params: {
       command: params.acpxCommand,
       args: ["--cwd", params.cwd, "config", "show"],
       cwd: params.cwd,
+      stripProviderAuthEnvVars: params.stripProviderAuthEnvVars,
     },
     params.spawnOptions,
   );
@@ -87,12 +93,14 @@ export async function resolveAcpxAgentCommand(params: {
   acpxCommand: string;
   cwd: string;
   agent: string;
+  stripProviderAuthEnvVars?: boolean;
   spawnOptions?: SpawnCommandOptions;
 }): Promise<string> {
   const normalizedAgent = normalizeAgentName(params.agent);
   const overrides = await loadAgentOverrides({
     acpxCommand: params.acpxCommand,
     cwd: params.cwd,
+    stripProviderAuthEnvVars: params.stripProviderAuthEnvVars,
     spawnOptions: params.spawnOptions,
   });
   return overrides[normalizedAgent] ?? ACPX_BUILTIN_AGENT_COMMANDS[normalizedAgent] ?? params.agent;

extensions/acpx/src/runtime-internals/process.test.ts

@@ -2,7 +2,7 @@ import { spawn } from "node:child_process";
 import { mkdir, mkdtemp, rm, writeFile } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import path from "node:path";
-import { afterEach, describe, expect, it } from "vitest";
+import { afterEach, describe, expect, it, vi } from "vitest";
 import { createWindowsCmdShimFixture } from "../../../shared/windows-cmd-shim-test-fixtures.js";
 import {
   resolveSpawnCommand,
@@ -28,6 +28,7 @@ async function createTempDir(): Promise<string> {
 }
 
 afterEach(async () => {
+  vi.unstubAllEnvs();
   while (tempDirs.length > 0) {
     const dir = tempDirs.pop();
     if (!dir) {
@@ -289,4 +290,99 @@ describe("spawnAndCollect", () => {
     const result = await resultPromise;
     expect(result.error?.name).toBe("AbortError");
   });
+
+  it("strips shared provider auth env vars from spawned acpx children", async () => {
+    vi.stubEnv("OPENAI_API_KEY", "openai-secret");
+    vi.stubEnv("GITHUB_TOKEN", "gh-secret");
+    vi.stubEnv("HF_TOKEN", "hf-secret");
+    vi.stubEnv("OPENCLAW_API_KEY", "keep-me");
+
+    const result = await spawnAndCollect({
+      command: process.execPath,
+      args: [
+        "-e",
+        "process.stdout.write(JSON.stringify({openai:process.env.OPENAI_API_KEY,github:process.env.GITHUB_TOKEN,hf:process.env.HF_TOKEN,openclaw:process.env.OPENCLAW_API_KEY,shell:process.env.OPENCLAW_SHELL}))",
+      ],
+      cwd: process.cwd(),
+      stripProviderAuthEnvVars: true,
+    });
+
+    expect(result.code).toBe(0);
+    expect(result.error).toBeNull();
+
+    const parsed = JSON.parse(result.stdout) as {
+      openai?: string;
+      github?: string;
+      hf?: string;
+      openclaw?: string;
+      shell?: string;
+    };
+    expect(parsed.openai).toBeUndefined();
+    expect(parsed.github).toBeUndefined();
+    expect(parsed.hf).toBeUndefined();
+    expect(parsed.openclaw).toBe("keep-me");
+    expect(parsed.shell).toBe("acp");
+  });
+
+  it("strips provider auth env vars case-insensitively", async () => {
+    vi.stubEnv("OpenAI_Api_Key", "openai-secret");
+    vi.stubEnv("Github_Token", "gh-secret");
+    vi.stubEnv("OPENCLAW_API_KEY", "keep-me");
+
+    const result = await spawnAndCollect({
+      command: process.execPath,
+      args: [
+        "-e",
+        "process.stdout.write(JSON.stringify({openai:process.env.OpenAI_Api_Key,github:process.env.Github_Token,openclaw:process.env.OPENCLAW_API_KEY,shell:process.env.OPENCLAW_SHELL}))",
+      ],
+      cwd: process.cwd(),
+      stripProviderAuthEnvVars: true,
+    });
+
+    expect(result.code).toBe(0);
+    expect(result.error).toBeNull();
+
+    const parsed = JSON.parse(result.stdout) as {
+      openai?: string;
+      github?: string;
+      openclaw?: string;
+      shell?: string;
+    };
+    expect(parsed.openai).toBeUndefined();
+    expect(parsed.github).toBeUndefined();
+    expect(parsed.openclaw).toBe("keep-me");
+    expect(parsed.shell).toBe("acp");
+  });
+
+  it("preserves provider auth env vars for explicit custom commands by default", async () => {
+    vi.stubEnv("OPENAI_API_KEY", "openai-secret");
+    vi.stubEnv("GITHUB_TOKEN", "gh-secret");
+    vi.stubEnv("HF_TOKEN", "hf-secret");
+    vi.stubEnv("OPENCLAW_API_KEY", "keep-me");
+
+    const result = await spawnAndCollect({
+      command: process.execPath,
+      args: [
+        "-e",
+        "process.stdout.write(JSON.stringify({openai:process.env.OPENAI_API_KEY,github:process.env.GITHUB_TOKEN,hf:process.env.HF_TOKEN,openclaw:process.env.OPENCLAW_API_KEY,shell:process.env.OPENCLAW_SHELL}))",
+      ],
+      cwd: process.cwd(),
+    });
+
+    expect(result.code).toBe(0);
+    expect(result.error).toBeNull();
+
+    const parsed = JSON.parse(result.stdout) as {
+      openai?: string;
+      github?: string;
+      hf?: string;
+      openclaw?: string;
+      shell?: string;
+    };
+    expect(parsed.openai).toBe("openai-secret");
+    expect(parsed.github).toBe("gh-secret");
+    expect(parsed.hf).toBe("hf-secret");
+    expect(parsed.openclaw).toBe("keep-me");
+    expect(parsed.shell).toBe("acp");
+  });
 });

extensions/acpx/src/runtime-internals/process.ts

@@ -7,7 +7,9 @@ import type {
 } from "openclaw/plugin-sdk/acpx";
 import {
   applyWindowsSpawnProgramPolicy,
+  listKnownProviderAuthEnvVarNames,
   materializeWindowsSpawnProgram,
+  omitEnvKeysCaseInsensitive,
   resolveWindowsSpawnProgramCandidate,
 } from "openclaw/plugin-sdk/acpx";
 
@@ -125,6 +127,7 @@ export function spawnWithResolvedCommand(
     command: string;
     args: string[];
     cwd: string;
+    stripProviderAuthEnvVars?: boolean;
   },
   options?: SpawnCommandOptions,
 ): ChildProcessWithoutNullStreams {
@@ -136,9 +139,15 @@ export function spawnWithResolvedCommand(
     options,
   );
 
+  const childEnv = omitEnvKeysCaseInsensitive(
+    process.env,
+    params.stripProviderAuthEnvVars ? listKnownProviderAuthEnvVarNames() : [],
+  );
+  childEnv.OPENCLAW_SHELL = "acp";
+
   return spawn(resolved.command, resolved.args, {
     cwd: params.cwd,
-    env: { ...process.env, OPENCLAW_SHELL: "acp" },
+    env: childEnv,
     stdio: ["pipe", "pipe", "pipe"],
     shell: resolved.shell,
     windowsHide: resolved.windowsHide,
@@ -180,6 +189,7 @@ export async function spawnAndCollect(
     command: string;
     args: string[];
     cwd: string;
+    stripProviderAuthEnvVars?: boolean;
   },
   options?: SpawnCommandOptions,
   runtime?: {

extensions/acpx/src/runtime.test.ts

@@ -1,6 +1,6 @@
 import os from "node:os";
 import path from "node:path";
-import { afterAll, beforeAll, describe, expect, it } from "vitest";
+import { afterAll, beforeAll, describe, expect, it, vi } from "vitest";
 import { runAcpRuntimeAdapterContract } from "../../../src/acp/runtime/adapter-contract.testkit.js";
 import { AcpxRuntime, decodeAcpxRuntimeHandleState } from "./runtime.js";
 import {
@@ -19,13 +19,14 @@ beforeAll(async () => {
     {
       command: "/definitely/missing/acpx",
       allowPluginLocalInstall: false,
+      stripProviderAuthEnvVars: false,
       installCommand: "n/a",
       cwd: process.cwd(),
-      mcpServers: {},
       permissionMode: "approve-reads",
       nonInteractivePermissions: "fail",
       strictWindowsCmdWrapper: true,
       queueOwnerTtlSeconds: 0.1,
+      mcpServers: {},
     },
     { logger: NOOP_LOGGER },
   );
@@ -165,7 +166,7 @@ describe("AcpxRuntime", () => {
     for await (const _event of runtime.runTurn({
       handle,
       text: "describe this image",
-      attachments: [{ mediaType: "image/png", data: "aW1hZ2UtYnl0ZXM=" }],
+      attachments: [{ mediaType: "image/png", data: "aW1hZ2UtYnl0ZXM=" }], // pragma: allowlist secret
       mode: "prompt",
       requestId: "req-image",
     })) {
@@ -186,6 +187,40 @@ describe("AcpxRuntime", () => {
     ]);
   });
 
+  it("preserves provider auth env vars when runtime uses a custom acpx command", async () => {
+    vi.stubEnv("OPENAI_API_KEY", "openai-secret"); // pragma: allowlist secret
+    vi.stubEnv("GITHUB_TOKEN", "gh-secret"); // pragma: allowlist secret
+
+    try {
+      const { runtime, logPath } = await createMockRuntimeFixture();
+      const handle = await runtime.ensureSession({
+        sessionKey: "agent:codex:acp:custom-env",
+        agent: "codex",
+        mode: "persistent",
+      });
+
+      for await (const _event of runtime.runTurn({
+        handle,
+        text: "custom-env",
+        mode: "prompt",
+        requestId: "req-custom-env",
+      })) {
+        // Drain events; assertions inspect the mock runtime log.
+      }
+
+      const logs = await readMockRuntimeLogEntries(logPath);
+      const prompt = logs.find(
+        (entry) =>
+          entry.kind === "prompt" &&
+          String(entry.sessionName ?? "") === "agent:codex:acp:custom-env",
+      );
+      expect(prompt?.openaiApiKey).toBe("openai-secret");
+      expect(prompt?.githubToken).toBe("gh-secret");
+    } finally {
+      vi.unstubAllEnvs();
+    }
+  });
+
   it("preserves leading spaces across streamed text deltas", async () => {
     const runtime = sharedFixture?.runtime;
     expect(runtime).toBeDefined();
@@ -395,7 +430,7 @@ describe("AcpxRuntime", () => {
             command: "npx",
             args: ["-y", "mcp-remote@latest", "https://mcp.canva.com/mcp"],
             env: {
-              CANVA_TOKEN: "secret",
+              CANVA_TOKEN: "secret", // pragma: allowlist secret
             },
           },
         },

extensions/acpx/src/runtime.ts

@@ -170,6 +170,7 @@ export class AcpxRuntime implements AcpRuntime {
       command: this.config.command,
       cwd: this.config.cwd,
       expectedVersion: this.config.expectedVersion,
+      stripProviderAuthEnvVars: this.config.stripProviderAuthEnvVars,
       spawnOptions: this.spawnCommandOptions,
     });
     if (!versionCheck.ok) {
@@ -183,6 +184,7 @@ export class AcpxRuntime implements AcpRuntime {
           command: this.config.command,
           args: ["--help"],
           cwd: this.config.cwd,
+          stripProviderAuthEnvVars: this.config.stripProviderAuthEnvVars,
         },
         this.spawnCommandOptions,
       );
@@ -309,6 +311,7 @@ export class AcpxRuntime implements AcpRuntime {
         command: this.config.command,
         args,
         cwd: state.cwd,
+        stripProviderAuthEnvVars: this.config.stripProviderAuthEnvVars,
       },
       this.spawnCommandOptions,
     );
@@ -495,6 +498,7 @@ export class AcpxRuntime implements AcpRuntime {
       command: this.config.command,
       cwd: this.config.cwd,
       expectedVersion: this.config.expectedVersion,
+      stripProviderAuthEnvVars: this.config.stripProviderAuthEnvVars,
       spawnOptions: this.spawnCommandOptions,
     });
     if (!versionCheck.ok) {
@@ -518,6 +522,7 @@ export class AcpxRuntime implements AcpRuntime {
           command: this.config.command,
           args: ["--help"],
           cwd: this.config.cwd,
+          stripProviderAuthEnvVars: this.config.stripProviderAuthEnvVars,
         },
         this.spawnCommandOptions,
       );
@@ -683,6 +688,7 @@ export class AcpxRuntime implements AcpRuntime {
       acpxCommand: this.config.command,
       cwd: params.cwd,
       agent: params.agent,
+      stripProviderAuthEnvVars: this.config.stripProviderAuthEnvVars,
       spawnOptions: this.spawnCommandOptions,
     });
     const resolved = buildMcpProxyAgentCommand({
@@ -705,6 +711,7 @@ export class AcpxRuntime implements AcpRuntime {
         command: this.config.command,
         args: params.args,
         cwd: params.cwd,
+        stripProviderAuthEnvVars: this.config.stripProviderAuthEnvVars,
       },
       this.spawnCommandOptions,
       {

extensions/acpx/src/service.test.ts

@@ -89,6 +89,11 @@ describe("createAcpxRuntimeService", () => {
 
     await vi.waitFor(() => {
       expect(ensureAcpxSpy).toHaveBeenCalledOnce();
+      expect(ensureAcpxSpy).toHaveBeenCalledWith(
+        expect.objectContaining({
+          stripProviderAuthEnvVars: true,
+        }),
+      );
       expect(probeAvailabilitySpy).toHaveBeenCalledOnce();
     });
 

extensions/acpx/src/service.ts

@@ -59,9 +59,8 @@ export function createAcpxRuntimeService(
       });
       const expectedVersionLabel = pluginConfig.expectedVersion ?? "any";
       const installLabel = pluginConfig.allowPluginLocalInstall ? "enabled" : "disabled";
-      const mcpServerCount = Object.keys(pluginConfig.mcpServers).length;
       ctx.logger.info(
-        `acpx runtime backend registered (command: ${pluginConfig.command}, expectedVersion: ${expectedVersionLabel}, pluginLocalInstall: ${installLabel}${mcpServerCount > 0 ? `, mcpServers: ${mcpServerCount}` : ""})`,
+        `acpx runtime backend registered (command: ${pluginConfig.command}, expectedVersion: ${expectedVersionLabel}, pluginLocalInstall: ${installLabel})`,
       );
 
       lifecycleRevision += 1;
@@ -73,6 +72,7 @@ export function createAcpxRuntimeService(
             logger: ctx.logger,
             expectedVersion: pluginConfig.expectedVersion,
             allowInstall: pluginConfig.allowPluginLocalInstall,
+            stripProviderAuthEnvVars: pluginConfig.stripProviderAuthEnvVars,
             spawnOptions: {
               strictWindowsCmdWrapper: pluginConfig.strictWindowsCmdWrapper,
             },

extensions/acpx/src/test-utils/runtime-fixtures.ts

@@ -204,6 +204,8 @@ if (command === "prompt") {
     sessionName: sessionFromOption,
     stdinText,
     openclawShell,
+    openaiApiKey: process.env.OPENAI_API_KEY || "",
+    githubToken: process.env.GITHUB_TOKEN || "",
   });
   const requestId = "req-1";
 
@@ -326,6 +328,7 @@ export async function createMockRuntimeFixture(params?: {
   const config: ResolvedAcpxPluginConfig = {
     command: scriptPath,
     allowPluginLocalInstall: false,
+    stripProviderAuthEnvVars: false,
     installCommand: "n/a",
     cwd: dir,
     permissionMode: params?.permissionMode ?? "approve-all",
@@ -378,6 +381,7 @@ export async function readMockRuntimeLogEntries(
 
 export async function cleanupMockRuntimeFixtures(): Promise<void> {
   delete process.env.MOCK_ACPX_LOG;
+  delete process.env.MOCK_ACPX_CONFIG_SHOW_AGENTS;
   sharedMockCliScriptPath = null;
   logFileSequence = 0;
   while (tempDirs.length > 0) {