Allow disabling MCP config filtering

Author: i1bro

src/CodexAcpClient.ts

@@ -47,16 +47,18 @@ export class CodexAcpClient {
     private readonly codexClient: CodexAppServerClient;
     private readonly config: JsonObject;
     private readonly modelProvider: string | null;
+    private readonly disableMcpConfigFiltering: boolean;
     private gatewayConfig: GatewayConfig | null;
     private pendingLoginCompleted: Promise<AccountLoginCompletedNotification> | null = null;
     private pendingAccountUpdated: Promise<AccountUpdatedNotification> | null = null;
     private readonly sessionNotificationQueues = new Map<string, Promise<void>>();
 
 
-    constructor(codexClient: CodexAppServerClient, codexConfig?: JsonObject, modelProvider?: string) {
+    constructor(codexClient: CodexAppServerClient, codexConfig?: JsonObject, modelProvider?: string, disableMcpConfigFiltering = false) {
         this.codexClient = codexClient;
         this.config = codexConfig ?? {};
         this.modelProvider = modelProvider ?? null;
+        this.disableMcpConfigFiltering = disableMcpConfigFiltering;
         this.gatewayConfig = null;
     }
 
@@ -314,7 +316,9 @@ export class CodexAcpClient {
 
         // Deduplicates new servers against existing config to prevent Codex from deep-merging
         // incompatible field types (e.g., mixing url and stdio schemas).
-        const existingNames = await this.getConfigMcpServerNames(projectPath);
+        const existingNames = this.disableMcpConfigFiltering
+            ? new Set<string>()
+            : await this.getConfigMcpServerNames(projectPath);
         const requestedServers = mcpServers.map(mcp => ({
             name: sanitizeMcpServerName(mcp.name),
             server: mcp,

src/index.ts

@@ -42,6 +42,7 @@ function startAcpServer() {
     const configString = process.env["CODEX_CONFIG"];
     const authRequestString = process.env["DEFAULT_AUTH_REQUEST"];
     const modelProvider = process.env["MODEL_PROVIDER"];
+    const disableMcpConfigFiltering = process.env["DISABLE_MCP_CONFIG_FILTERING"] === "true";
     const config = configString ? JSON.parse(configString) : undefined;
     const parsedAuthRequest = authRequestString ? JSON.parse(authRequestString) : undefined;
     const defaultAuthRequest = parsedAuthRequest && isCodexAuthRequest(parsedAuthRequest) ? parsedAuthRequest : undefined;
@@ -72,7 +73,7 @@ function startAcpServer() {
 
     function createAgent(connection: acp.AgentSideConnection): CodexAcpServer {
         const appServerClient = new CodexAppServerClient(codexConnection.connection);
-        const codexClient = new CodexAcpClient(appServerClient, config, modelProvider);
+        const codexClient = new CodexAcpClient(appServerClient, config, modelProvider, disableMcpConfigFiltering);
         return new CodexAcpServer(connection, codexClient, defaultAuthRequest, () => codexConnection.process.exitCode);
     }