Add new prompt to save custom user prompts to config (#117)

* Add new prompt to save custom user prompts to config

* Tweak prompt creation

Author: jmckitrick

src/clojure_mcp/prompts.clj

@@ -280,6 +280,31 @@ After doing this provide a very brief (8 lines) summary of where we are and then
                                                          (.getPath file)
                                                          (.getMessage e))}]})))))))})
 
+(def save-new-prompt
+  {:name "save_new_prompt"
+   :description "Asks the user for a new prompt and a name, and saves them to their user config"
+   :prompt-fn (fn [_ request-args clj-result-k]
+                (clj-result-k
+                 {:description "Help user create/update a custom prompt"
+                  :messages [{:role :user
+                              :content "Here is how you create a new prompt:
+1. In the `.clojure-mcp` project folder, find the `config.edn` file.
+2. Under the `:prompts` key will be a map of strings (which name the prompts) and maps (which define the prompts).
+3. Note that each prompt has a description and content, and may also have arguments.
+4. Read each prompt, and ask the user if they want to create a new prompt or edit an existing prompt.
+5. Ask the user what they want the prompt to do.
+6. Help the user compose the content of the prompt, including any arguments, if required.
+7. If this is a new prompt, save it as described below.
+8. If this is an existing prompt, update the existing prompt.
+
+How to save a prompt:
+
+Save prompt in the `.clojure-mcp` project folder, in the `config.edn` file under the `:prompts` key using the STRING name of the prompt as the key,
+and using the following format:
+`:description` - \"Custom user-added prompt\"
+`:content` - %s
+`:args` - vector of args, where each arg is a map of `:name`, `:description`, and a `:required?` flag."}]}))})
+
 (defn create-prompt-from-config
   "Creates a prompt from configuration map.
    Config should have :description, :args, and either :file-path or :content.
@@ -338,6 +363,7 @@ After doing this provide a very brief (8 lines) summary of where we are and then
                 (str
                  (load-prompt-from-resource "clojure-mcp/prompts/system/clojure_repl_form_edit.md")
                  (load-prompt-from-resource "clojure-mcp/prompts/system/clojure_form_edit.md")))}
+   save-new-prompt
    (create-project-summary working-dir)
    chat-session-summary
    resume-chat-session