diff --git a/packages/opencode/src/flag/flag.ts b/packages/opencode/src/flag/flag.ts
index 22eba6320e9..5b676849642 100644
--- a/packages/opencode/src/flag/flag.ts
+++ b/packages/opencode/src/flag/flag.ts
@@ -20,6 +20,7 @@ export namespace Flag {
   export const OPENCODE_DISABLE_TERMINAL_TITLE = truthy("OPENCODE_DISABLE_TERMINAL_TITLE")
   export const OPENCODE_PERMISSION = process.env["OPENCODE_PERMISSION"]
   export const OPENCODE_DISABLE_DEFAULT_PLUGINS = truthy("OPENCODE_DISABLE_DEFAULT_PLUGINS")
+  export const OPENCODE_DISABLE_LSP = truthy("OPENCODE_DISABLE_LSP")
   export const OPENCODE_DISABLE_LSP_DOWNLOAD = truthy("OPENCODE_DISABLE_LSP_DOWNLOAD")
   export const OPENCODE_ENABLE_EXPERIMENTAL_MODELS = truthy("OPENCODE_ENABLE_EXPERIMENTAL_MODELS")
   export const OPENCODE_DISABLE_AUTOCOMPACT = truthy("OPENCODE_DISABLE_AUTOCOMPACT")
diff --git a/packages/opencode/src/lsp/index.ts b/packages/opencode/src/lsp/index.ts
index 9d7d30632ab..6e570d5f3a5 100644
--- a/packages/opencode/src/lsp/index.ts
+++ b/packages/opencode/src/lsp/index.ts
@@ -80,6 +80,17 @@ export namespace LSP {
     async () => {
       const clients: LSPClient.Info[] = []
       const servers: Record<string, LSPServer.Info> = {}
+
+      if (Flag.OPENCODE_DISABLE_LSP) {
+        log.info("all LSPs are disabled via OPENCODE_DISABLE_LSP")
+        return {
+          broken: new Set<string>(),
+          servers,
+          clients,
+          spawning: new Map<string, Promise<LSPClient.Info | undefined>>(),
+        }
+      }
+
       const cfg = await Config.get()
 
       if (cfg.lsp === false) {