LLM improvements

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@@ -835,6 +835,7 @@ Actually, nix *really* requires ~bash~. This is a plugin that allows using zsh f
         });
         bindKeyMap."C-c c" = "claude-code-command-map";
         custom.claude-code-optimize-window-resize = false;
+        custom.claude-code-terminal-backend = "'ghostel";
       };
 
       gptel = {
@@ -905,36 +906,35 @@ Actually, nix *really* requires ~bash~. This is a plugin that allows using zsh f
 #+BEGIN_SRC elisp :tangle no :noweb-ref emacs-gptel-agent-config
   (require 'gptel-agent-tools-introspection)
   (gptel-agent-update)
-  (gptel-make-preset 'coding
-    :description "Preset for agentic coding"
+
+  (gptel-make-preset 'conversation
+    :description "Preset with no tools, just for conversing"
     :backend "Claude"
     :model 'claude-sonnet-5
-    :use-tools t
     :max-tokens 128000
-    :tools '("Grep" "Read" "Glob" "Write" "Insert"
-             "Edit" "Mkdir" "Diagnostics" "WebFetch" "WebSearch" "Bash" "git_uncommitted_diff" "git_head_commit_diff"
-             "git_branch_diff"))
+    :cache t)
+
   (gptel-make-preset 'research
     :description "Preset for answering questions with web results"
-    :backend "Claude"
-    :model 'claude-sonnet-5
-    :use-tools t
-    :max-tokens 128000
+    :parents 'conversation
     :confirm-tool-calls nil
     :tools '("WebFetch" "WebSearch"))
+
   (gptel-make-preset 'emacs-research
     :description "Preset for answering questions about the live emacs instance"
-    :backend "Claude"
-    :model 'claude-sonnet-5
-    :use-tools t
-    :max-tokens 128000
-    :confirm-tool-calls nil
-    :tools '("WebFetch" "WebSearch"
-             "variable_completions" "command_completions" "function_completions"
+    :parents 'research
+    :tools '(:append ("variable_completions" "command_completions" "function_completions"
              "variable_documentation" "function_documentation" "variable_value"
              "variable_source" "function_source" "symbol_manual_section"
              "library_source" "manual_node_contents" "manual_nodes" "manual_names"
-             "features" "load_paths" "symbol_exists"))
+             "features" "load_paths" "symbol_exists")))
+
+  (gptel-make-preset 'coding
+    :description "Preset for agentic coding"
+    :parents 'research
+    :tools '(:append ("Grep" "Read" "Glob" "Write" "Insert"
+             "Edit" "Mkdir" "Diagnostics" "Bash" "git_uncommitted_diff" "git_head_commit_diff"
+             "git_branch_diff")))
 #+END_SRC
 
 ** Age
@@ -2562,10 +2562,10 @@ And finally, we want to hide the cursor when presenting.
 #+BEGIN_SRC nix
   {
     programs.emacs.init.usePackage = {
-      eat = {
+      ghostel = {
         enable = true;
-        command = ["eat"];
-        hook = ["(eshell-load . eat-eshell-mode)"];
+        command = ["ghostel"];
+        hook = ["(eshell-load . ghostel-eshell-visual-command-mode)"];
       };
     };
   }