Fix OS socket routing in telemetry

nvim-core/src/lib.rs

@@ -753,7 +753,7 @@ pub async fn run_mcp_loop(app_name: &str, app_version: &str) {
                             "tools": [
                                 {
                                     "name": "nvim_goto_line",
-                                    "description": "Open a file and jump to a specific line",
+                                    "description": "Open a file and jump to a specific line. WARNING: Jumps the cursor in the active window. Do NOT use if you might disrupt the user's current workflow. Prefer nvim_split_window if investigating.",
                                     "inputSchema": {
                                         "type": "object",
                                         "properties": {
@@ -773,7 +773,7 @@ pub async fn run_mcp_loop(app_name: &str, app_version: &str) {
                                 },
                                 {
                                     "name": "nvim_get_cursor",
-                                    "description": "Get the current cursor position (line and column) in the active Neovim buffer",
+                                    "description": "Get the current cursor position. WARNING: Transient state. Do NOT base code edits strictly on cursor position. Use absolute line numbers.",
                                     "inputSchema": {
                                         "type": "object",
                                         "properties": {}
@@ -781,7 +781,7 @@ pub async fn run_mcp_loop(app_name: &str, app_version: &str) {
                                 },
                                 {
                                     "name": "nvim_get_visual_selection",
-                                    "description": "Get the text that is currently highlighted or was last highlighted in Visual mode",
+                                    "description": "Get visually selected text. WARNING: Transient state. The user might have moved the cursor. Verify contents before editing.",
                                     "inputSchema": {
                                         "type": "object",
                                         "properties": {}
@@ -793,7 +793,7 @@ pub async fn run_mcp_loop(app_name: &str, app_version: &str) {
                                     "inputSchema": {
                                         "type": "object",
                                         "properties": {
-                                            "line": { "type": "integer" },
+                                            "line": { "type": "integer", "description": "Line number (1-indexed)" },
                                             "message": { "type": "string" }
                                         },
                                         "required": ["line", "message"]
@@ -805,7 +805,7 @@ pub async fn run_mcp_loop(app_name: &str, app_version: &str) {
                                     "inputSchema": {
                                         "type": "object",
                                         "properties": {
-                                            "line": { "type": "integer" },
+                                            "line": { "type": "integer", "description": "Line number (1-indexed)" },
                                             "text": { "type": "string" },
                                             "highlight_group": { "type": "string", "description": "Optional. E.g., 'DiagnosticVirtualTextInfo', 'Comment'" }
                                         },
@@ -973,8 +973,8 @@ pub async fn run_mcp_loop(app_name: &str, app_version: &str) {
                                         "type": "object",
                                         "properties": {
                                             "buf_id": { "type": "integer" },
-                                            "start_line": { "type": "integer" },
-                                            "end_line": { "type": "integer" },
+                                            "start_line": { "type": "integer", "description": "1-indexed start line" },
+                                            "end_line": { "type": "integer", "description": "1-indexed end line" },
                                             "group": { "type": "string" },
                                             "duration_ms": { "type": "integer", "description": "Duration to show highlight in milliseconds. Set to 0 for permanent (until cleared manually)." },
                                             "clear_only": { "type": "boolean", "description": "If true, will only clear existing highlights and ignore start/end lines." }
@@ -1024,6 +1024,14 @@ pub async fn run_mcp_loop(app_name: &str, app_version: &str) {
                                         },
                                         "required": ["file", "pattern"]
                                     }
+                                },
+                                {
+                                    "name": "nvim_get_server_info",
+                                    "description": "Get diagnostic info about this MCP server (OS, version, executable path, backend)",
+                                    "inputSchema": {
+                                        "type": "object",
+                                        "properties": {}
+                                    }
                                 }
                             ]
                         })),
@@ -1342,12 +1350,23 @@ pub async fn run_mcp_loop(app_name: &str, app_version: &str) {
                             let code = "
                                 local first = vim.fn.line('w0')
                                 local last = vim.fn.line('w$')
+                                local total = vim.api.nvim_buf_line_count(0)
                                 local lines = vim.api.nvim_buf_get_lines(0, first - 1, last, false)
                                 local res = {}
                                 for i, line in ipairs(lines) do
                                     table.insert(res, tostring(first + i - 1) .. ': ' .. line)
                                 end
-                                return table.concat(res, '\\n')
+                                local content = table.concat(res, '\\n')
+                                
+                                local pct = math.floor(((last - first + 1) / total) * 100)
+                                local result = {
+                                    viewport_start = first,
+                                    viewport_end = last,
+                                    total_buffer_lines = total,
+                                    warning = string.format('You are only seeing %d%% of this file. Do not assume variables are undefined just because they are not in the viewport.', pct),
+                                    content = content
+                                }
+                                return result
                             ";
                             match execute_nvim_lua(code).await {
                                 Ok(res) => send_text_result!(id.clone(), res),
@@ -1402,14 +1421,28 @@ pub async fn run_mcp_loop(app_name: &str, app_version: &str) {
                                     end
                                     local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
                                     local matches = {{}}
+                                    
+                                    local pcall_ok, _ = pcall(function()
                                         for i, line in ipairs(lines) do
-                                        if string.match(line, pattern) then
+                                            if vim.fn.match(line, '\\\\v' .. pattern) >= 0 then
                                                 table.insert(matches, tostring(i) .. ': ' .. line)
                                             end
                                         end
-                                    if #matches == 0 then
+                                    end)
+                                    
+                                    if not pcall_ok or #matches == 0 then
+                                        matches = {{}}
+                                        for i, line in ipairs(lines) do
+                                            if string.find(line, pattern, 1, true) then
+                                                table.insert(matches, tostring(i) .. ': ' .. line)
+                                            end
+                                        end
+                                        if #matches > 0 then
+                                            table.insert(matches, 1, 'Regex failed or no results, but found these literal matches:')
+                                        else
                                             return 'No matches found.'
                                         end
+                                    end
                                     return table.concat(matches, '\\n')
                                 ");
                                 match execute_nvim_lua(&code).await {
@@ -1452,6 +1485,18 @@ pub async fn run_mcp_loop(app_name: &str, app_version: &str) {
                                 send_error(id, -32602, "Missing 'code'").await;
                             }
                         }
+                        "nvim_get_server_info" => {
+                            let os = if cfg!(windows) { "Windows" } else { "Linux" };
+                            let exe_path = std::env::current_exe()
+                                .map(|p| p.to_string_lossy().to_string())
+                                .unwrap_or_else(|_| "unknown".to_string());
+                            let socket = get_socket_path().await.unwrap_or_else(|e| format!("Error: {}", e));
+                            let info = format!(
+                                "Server: {}\nVersion: {}\nOS: {}\nExecutable: {}\nBackend Socket: {}",
+                                app_name, app_version, os, exe_path, socket
+                            );
+                            send_text_result!(id, info);
+                        }
                         _ => send_error(id, -32601, "Method not found").await,
                     }
                 }

server/src/api/telemetry.rs

@@ -18,13 +18,18 @@ pub async fn nvim_telemetry_handler(
     // 1. Update active_nvim.txt if FocusGained, BufEnter, or VimEnter
     if payload.event == "FocusGained" || payload.event == "BufEnter" || payload.event == "VimEnter"
     {
+        let session = &payload.session_id;
+        let is_unix_socket = session.starts_with('/') || session.starts_with('~');
+
+        if is_unix_socket {
+            let wsl_path = "\\\\wsl.localhost\\Ubuntu\\home\\riz\\.gemini\\active_nvim.txt";
+            let _ = tokio::fs::write(wsl_path, session).await;
+        } else {
             let profile =
                 std::env::var("USERPROFILE").unwrap_or_else(|_| "C:\\Users\\reazul.ashraf".into());
             let win_path = format!("{}\\.gemini\\active_nvim.txt", profile);
-        let _ = tokio::fs::write(&win_path, &payload.session_id).await;
-
-        let wsl_path = "\\\\wsl.localhost\\Ubuntu\\home\\riz\\.gemini\\active_nvim.txt";
-        let _ = tokio::fs::write(wsl_path, &payload.session_id).await;
+            let _ = tokio::fs::write(&win_path, session).await;
+        }
     }
 
     // 2. Broadcast to UI WebSockets