feat: use hack method for coder mcp server

Author: DevelopmentCats

registry/coder-labs/modules/copilot-cli/README.md

@@ -207,9 +207,10 @@ This module works with multiple GitHub authentication methods in priority order:
 
 ## Task Reporting
 
-When `report_tasks = true` (default), this module automatically configures the **Coder MCP server** for task reporting integration:
+When `report_tasks = true` (default), this module automatically configures and starts the **Coder MCP server** for task reporting integration:
+
+- **Automatic Configuration**: The Coder MCP server is added to the MCP configuration automatically
 
-- **Automatic Integration**: The Coder MCP server is added to the MCP configuration automatically
 - **Task Status Updates**: Copilot CLI can report task progress to the Coder UI
 - **No Manual Setup**: Works out-of-the-box with Coder's task reporting system
 - **Custom MCP Compatible**: If you provide custom `mcp_config`, the Coder MCP server is added alongside your custom servers
@@ -222,6 +223,14 @@ The Coder MCP server enables Copilot CLI to:
 
 To disable task reporting, set `report_tasks = false`.
 
+### MCP Server Configuration
+
+This module automatically configures MCP servers by:
+
+1. **Writing MCP Configuration**: Creates `~/.copilot/mcp-config.json` with the correct format
+2. **Wrapper Script**: Creates `/tmp/coder-mcp-server.sh` that sets environment variables and runs `coder exp mcp server`
+3. **Merging Custom Servers**: Adds any custom MCP servers you provide via the `mcp_config` variable
+
 ## Troubleshooting
 
 If you encounter any issues, check the log files in the `~/.copilot-module` directory within your workspace for detailed information.

registry/coder-labs/modules/copilot-cli/main.test.ts

@@ -271,8 +271,6 @@ describe("copilot-cli module", async () => {
     );
     expect(statusSlugEnv).toBeDefined();
 
-    // System prompt is now handled via .github/copilot-instructions.md file creation
-    // during install, not via environment variables
   });
 
   it("works with full configuration", async () => {

registry/coder-labs/modules/copilot-cli/scripts/install.sh

@@ -131,22 +131,38 @@ setup_mcp_config() {
 setup_coder_mcp_server() {
   local mcp_config_file="$1"
 
+  local coder_mcp_wrapper_script
+  coder_mcp_wrapper_script=$(
+    cat << EOF
+#!/usr/bin/env bash
+set -e
+
+# --- Set environment variables ---
+export CODER_MCP_APP_STATUS_SLUG="${ARG_MCP_APP_STATUS_SLUG}"
+export CODER_MCP_AI_AGENTAPI_URL="http://localhost:3284"
+export CODER_AGENT_URL="\${CODER_AGENT_URL}"
+export CODER_AGENT_TOKEN="\${CODER_AGENT_TOKEN}"
+
+# --- Launch the MCP server ---
+exec coder exp mcp server
+EOF
+  )
+  echo "$coder_mcp_wrapper_script" > "/tmp/coder-mcp-server.sh"
+  chmod +x /tmp/coder-mcp-server.sh
+
   local coder_mcp_config
   coder_mcp_config=$(
     cat << EOF
 {
   "mcpServers": {
     "coder": {
-      "type": "local",
-      "command": "coder",
-      "args": ["exp", "mcp", "server"],
-      "tools": ["*"],
-      "env": {
-        "CODER_MCP_APP_STATUS_SLUG": "${ARG_MCP_APP_STATUS_SLUG}",
-        "CODER_MCP_AI_AGENTAPI_URL": "http://localhost:3284",
-        "CODER_AGENT_URL": "${CODER_AGENT_URL}",
-        "CODER_AGENT_TOKEN": "${CODER_AGENT_TOKEN}"
-      }
+      "command": "/tmp/coder-mcp-server.sh",
+      "args": [],
+      "description": "Report ALL tasks and statuses (in progress, done, failed) you are working on.",
+      "name": "Coder",
+      "timeout": 3000,
+      "type": "stdio",
+      "trust": true
     }
   }
 }