diff --git a/chatgpt_config.yaml b/chatgpt_config.yaml
index 8d36183..2d2a0a8 100644
--- a/chatgpt_config.yaml
+++ b/chatgpt_config.yaml
@@ -2,8 +2,6 @@ project_name: "chatgpt.vim"
 default_prompt_blocks:
   - "basic-prompt"
   - "secure-coding"
-initial_files:
-  - "README.md"
 
 debug: false
 improved_debug: false
diff --git a/lua/chatgpt_nvim/prompts.lua b/lua/chatgpt_nvim/prompts.lua
index 3b6ad1d..1739e3b 100644
--- a/lua/chatgpt_nvim/prompts.lua
+++ b/lua/chatgpt_nvim/prompts.lua
@@ -342,7 +342,7 @@ local M = {
        - Always start with 1 or 2, but afterwards you can mix 1, 2, 3, and 4 as needed.
        - Include `project_name: "my_project"` whenever you call `tools`.
        - Keep each tool call in the `tools` array (multiple if needed).
-       - **Never write to a file you haven’t read** in this session (unless creating a new file).
+       - **Never write to a file you haven’t read** in this session and already got the content from an response (unless creating a new file).
        - Follow secure coding guidelines (input validation, least privilege, no sensitive info in logs, etc.).
        - When done, provide a final answer **without** calling any tools.
   ]],
diff --git a/lua/chatgpt_nvim/tools/execute_command.lua b/lua/chatgpt_nvim/tools/execute_command.lua
index 5fb9274..ee4ccbb 100644
--- a/lua/chatgpt_nvim/tools/execute_command.lua
+++ b/lua/chatgpt_nvim/tools/execute_command.lua
@@ -1,17 +1,36 @@
 local M = {}
 
 M.run = function(tool_call, conf, prompt_user_tool_accept, is_subpath, read_file)
+  -- Validate the command exists
   local cmd = tool_call.command
   if not cmd then
     return "[executeCommand] Missing 'command'."
   end
-  local handle = io.popen(cmd)
+
+  -- Capture stderr and stdout together by redirecting stderr to stdout
+  -- This will help diagnose if there's an error causing no output
+  cmd = cmd .. " 2>&1"
+
+  -- Attempt to popen the command
+  local handle = io.popen(cmd, "r")
   if not handle then
     return string.format("Tool [executeCommand '%s'] FAILED to popen.", cmd)
   end
+
+  -- Read the full output (stdout + stderr)
   local result = handle:read("*a") or ""
-  handle:close()
-  return string.format("Tool [executeCommand '%s'] Result:\n%s", cmd, result)
+
+  -- Attempt to close, capturing exit info
+  local _, exit_reason, exit_code = handle:close()
+
+  -- Provide a richer summary including exit code and reason
+  return string.format(
+    "Tool [executeCommand '%s'] exited with code %s (%s)\n%s",
+    cmd,
+    tostring(exit_code),
+    tostring(exit_reason),
+    result
+  )
 end
 
 return M
diff --git a/lua/chatgpt_nvim/tools/init.lua b/lua/chatgpt_nvim/tools/init.lua
index 3808175..9571c6c 100644
--- a/lua/chatgpt_nvim/tools/init.lua
+++ b/lua/chatgpt_nvim/tools/init.lua
@@ -25,7 +25,7 @@ M.available_tools = {
   {
     name = "executeCommand",
     usage = "Run a shell command. Provide { tool='executeCommand', command='...' }",
-    explanation = "Use with caution, especially for destructive operations (rm, sudo, etc.)."
+    explanation = "Just run one single command per tool invocation, without comment. It must be a single line. Use with caution, especially for destructive operations (rm, sudo, etc.)."
   },
 }