lsp-mcp: headless-editor MCP server over a language server

Effect 4 MCP server (stdio/HTTP) bridging one LSP process: on-demand document
sync with LRU and disk change detection, push/pull diagnostics reconciliation,
capability-gated tools, diagnostics resources, tests against a fixture server.

package.json

@@ -1,15 +1,19 @@
 {
   "name": "lsp-mcp",
-  "version": "1.0.0",
-  "description": "",
-  "main": "index.js",
+  "version": "0.1.0",
+  "description": "MCP server exposing a Language Server's capabilities to agents as a headless editor",
+  "type": "module",
+  "license": "MIT",
+  "bin": {
+    "lsp-mcp": "./src/main.ts"
+  },
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "node src/main.ts",
+    "check": "tsc",
+    "test": "vitest run",
+    "lint": "biome check --write --unsafe",
     "prepare": "effect-tsgo patch --typescript --no-oxlint"
   },
-  "keywords": [],
-  "author": "",
-  "license": "ISC",
   "devEngines": {
     "packageManager": {
       "name": "pnpm",
@@ -18,14 +22,20 @@
     }
   },
   "packageManager": "pnpm@12.4.2",
-  "type": "module",
   "dependencies": {
     "@effect/platform-node": "4.0.0-rc.115",
-    "effect": "4.0.0-rc.115"
+    "effect": "4.0.0-rc.115",
+    "vscode-languageserver-protocol": "^3.18.3",
+    "vscode-languageserver-textdocument": "^1.0.14",
+    "vscode-uri": "^3.2.0"
   },
   "devDependencies": {
     "@biomejs/biome": "2.5.14",
     "@effect/tsgo": "0.45.0",
-    "typescript": "^7.0.2"
+    "@effect/vitest": "4.0.0-rc.115",
+    "@types/node": "^26.6.1",
+    "typescript": "^7.0.2",
+    "vitest": "^5.0.1",
+    "vscode-languageserver": "^10.1.1"
   }
 }