Add 'env' agent field; stop Claude Code's IDE extension auto-install

Launch Claude Code with its official CLAUDE_CODE_IDE_SKIP_AUTO_INSTALL=1
environment variable so it no longer auto-installs its companion IDE extension,
consistent with Super CLI's one-extension-for-every-CLI philosophy. Add a generic
optional 'env' agent field that sets environment variables on the agent terminal.

Author: TheStreamCode

CHANGELOG.md

@@ -3,6 +3,13 @@
 All notable changes to this project are documented here. The format is based on
 [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [0.4.1]
+
+- Claude Code no longer auto-installs its companion IDE extension when launched from Super CLI. The
+  launcher sets Claude Code's official `CLAUDE_CODE_IDE_SKIP_AUTO_INSTALL` environment variable on the
+  agent's terminal — in keeping with Super CLI's "one extension for every CLI" philosophy.
+- New optional agent field `env` to set environment variables for an agent's terminal.
+
 ## [0.4.0]
 
 - Added **Cursor CLI** (`cursor-agent`), **Droid CLI** (`droid`), **Crush** (`crush`), **Hermes**

README.md

@@ -84,6 +84,8 @@ reuses a built-in `id` — overrides that built-in (for example to point at a cu
   only when missing, existing keys untouched). For example, opt out of a CLI's companion
   editor-extension auto-install via its own config: `{ "file": "~/.commandcode/config.json",
   "defaults": { "autoInstallExtension": false } }`.
+- `env` — optional environment variables set for the agent's terminal, e.g. to opt out of a CLI's
+  IDE-extension auto-install via its own variable: `{ "CLAUDE_CODE_IDE_SKIP_AUTO_INSTALL": "1" }`.
 
 Only the user (global) value of `superCli.agents` is used; workspace overrides are ignored so that
 an untrusted repository cannot inject commands.
@@ -108,10 +110,12 @@ settings.
   directory.
 - **Nothing happens on launch.** Make sure the workspace is trusted — the launcher is disabled in
   untrusted workspaces because it runs terminal commands.
-- **Command Code's companion extension.** Super CLI keeps your editor free of per-CLI companion
-  extensions: when you launch Command Code it sets `autoInstallExtension: false` in
-  `~/.commandcode/config.json` (Command Code's own official opt-out), so it stops auto-installing its
-  editor extension. To keep that extension, set the value back to `true` there.
+- **Companion editor extensions (Command Code, Claude Code).** Super CLI keeps your editor free of
+  per-CLI companion extensions. It launches **Command Code** with `autoInstallExtension: false` in
+  `~/.commandcode/config.json`, and **Claude Code** with the `CLAUDE_CODE_IDE_SKIP_AUTO_INSTALL=1`
+  environment variable — both official opt-outs — so they stop auto-installing their editor
+  extensions. Install those extensions yourself if you want them (for Command Code set the value back
+  to `true`).
 
 ## Support
 

package-lock.json

@@ -3,7 +3,7 @@
   "displayName": "Super CLI",
   "description": "One VS Code extension to launch any coding agent CLI (Claude Code, Codex, Copilot, Antigravity, and your own) from a single side terminal.",
   "publisher": "mikesoft",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "repository": {
     "type": "git",
     "url": "https://github.com/TheStreamCode/super-cli.git"
@@ -223,6 +223,13 @@
                     "description": "Keys to ensure are present in the file. Existing keys are never overwritten."
                   }
                 }
+              },
+              "env": {
+                "type": "object",
+                "description": "Optional environment variables to set for the agent's terminal. Useful to opt out of a CLI's IDE-extension auto-install via its own environment variable.",
+                "additionalProperties": {
+                  "type": "string"
+                }
               }
             }
           }

package.json

@@ -16,6 +16,7 @@ export interface Agent {
   installCommand?: InstallCommand;
   autoInstall?: boolean;
   ensureConfig?: EnsureConfig;
+  env?: Record<string, string>;
 }
 
 /** Built-in agent presets shipped with the extension. Users override them by reusing an id. */
@@ -27,6 +28,9 @@ export const BUILTIN_AGENTS: readonly Agent[] = [
     icon: 'sparkle',
     installCommand: 'npm install -g @anthropic-ai/claude-code',
     autoInstall: true,
+    // Super CLI is one extension for every CLI, so skip Claude Code's IDE extension
+    // auto-install using its own official environment variable.
+    env: { CLAUDE_CODE_IDE_SKIP_AUTO_INSTALL: '1' },
   },
   {
     id: 'codex',

src/agents.ts

@@ -229,6 +229,7 @@ export async function launchAgent(agent: Agent, context: vscode.ExtensionContext
     name: buildTerminalName(agent.label, sequence, agent.label),
     location: location === 'panel' ? vscode.TerminalLocation.Panel : { viewColumn: vscode.ViewColumn.Beside },
     cwd,
+    env: agent.env,
   });
   terminal.show();
   watchForMissingAgent(terminal, agent, context);

src/terminal.ts

@@ -53,6 +53,11 @@ test('OpenCode ships as a built-in preset', () => {
   assert.equal(opencode.installCommand, 'npm install -g opencode-ai');
 });
 
+test('Claude Code skips its IDE extension auto-install via env', () => {
+  const claude = BUILTIN_AGENTS.find((a) => a.id === 'claude');
+  assert.equal(claude.env.CLAUDE_CODE_IDE_SKIP_AUTO_INSTALL, '1');
+});
+
 test('Command Code opts out of its companion editor-extension auto-install', () => {
   const cc = BUILTIN_AGENTS.find((a) => a.id === 'command-code');
   assert.ok(cc);