Struct DynamicPromptRegistry 

pub struct DynamicPromptRegistry { /* private fields */ }

A thread-safe, cloneable handle for runtime prompt management.

Obtained from McpRouter::with_dynamic_prompts(). Prompts registered here are merged with the router’s static prompts when handling prompts/list and prompts/get requests.

When a prompt is registered or unregistered, all connected sessions receive a notifications/prompts/list_changed notification.

Example

use tower_mcp::{McpRouter, PromptBuilder};

let (router, registry) = McpRouter::new()
    .server_info("my-server", "1.0.0")
    .with_dynamic_prompts();

// Register a prompt at runtime
let prompt = PromptBuilder::new("greet")
    .description("Greet someone")
    .user_message("Hello!");

registry.register(prompt);

Implementations

impl DynamicPromptRegistry

pub fn register(&self, prompt: Prompt)

Register a prompt, replacing any existing prompt with the same name.

Broadcasts PromptsListChanged to all connected sessions.

pub fn unregister(&self, name: &str) -> bool

Unregister a prompt by name.

Returns true if the prompt existed and was removed. Broadcasts PromptsListChanged only if the prompt was actually removed.

pub fn list(&self) -> Vec<Arc<Prompt>>

List all currently registered dynamic prompts.

pub fn contains(&self, name: &str) -> bool

Check if a prompt with the given name is registered.

Trait Implementations

impl Clone for DynamicPromptRegistry

fn clone(&self) -> DynamicPromptRegistry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.