chore(vscode): add alpaca mcp env template

.vscode/mcp.json

@@ -1,18 +1,4 @@
 {
-  "inputs": [
-    {
-      "type": "promptString",
-      "id": "alpaca-api-key",
-      "description": "Alpaca API Key",
-      "password": true
-    },
-    {
-      "type": "promptString",
-      "id": "alpaca-secret-key",
-      "description": "Alpaca Secret Key",
-      "password": true
-    }
-  ],
   "servers": {
     "alpaca": {
       "type": "stdio",
@@ -21,8 +7,6 @@
         "${workspaceFolder}/scripts/mcp/alpaca-mcp-server.sh"
       ],
       "env": {
-        "ALPACA_API_KEY": "${input:alpaca-api-key}",
-        "ALPACA_SECRET_KEY": "${input:alpaca-secret-key}",
         "MCP_CLIENT": "vscode"
       }
     }

scripts/mcp/.env.example

@@ -0,0 +1,8 @@
+# Copy this file to scripts/mcp/.env and replace the placeholder values.
+# The real .env file is ignored by git.
+
+ALPACA_API_KEY=your_alpaca_api_key
+ALPACA_SECRET_KEY=your_alpaca_secret_key
+
+# Optional: set to true for paper trading if supported by the installed server version.
+ALPACA_PAPER_TRADE=true

scripts/mcp/alpaca-mcp-server.sh

@@ -1,7 +1,28 @@
 #!/usr/bin/env zsh
 set -euo pipefail
 
+SCRIPT_DIR="${0:A:h}"
+ENV_FILE="${ALPACA_MCP_ENV_FILE:-${SCRIPT_DIR}/.env}"
+
+if [[ -f "${ENV_FILE}" ]]; then
+  set -a
+  source "${ENV_FILE}"
+  set +a
+fi
+
 if [[ "${1:-}" == "--doctor" ]]; then
+  if [[ -f "${ENV_FILE}" ]]; then
+    echo "ok: env file found (${ENV_FILE})"
+  else
+    echo "warn: env file not found (${ENV_FILE}); copy scripts/mcp/.env.example to scripts/mcp/.env"
+  fi
+
+  if [[ -n "${ALPACA_API_KEY:-}" && -n "${ALPACA_SECRET_KEY:-}" ]]; then
+    echo "ok: Alpaca credential variables are set"
+  else
+    echo "warn: ALPACA_API_KEY and/or ALPACA_SECRET_KEY are not set"
+  fi
+
   if command -v uvx >/dev/null 2>&1; then
     echo "ok: uvx available ($(command -v uvx))"
     exit 0