pub trait PromptProvider: Send + Sync {
// Required methods
fn list_prompts<'life0, 'async_trait>(
&'life0 self,
) -> Pin<Box<dyn Future<Output = Result<Vec<PromptDescriptor>, CapabilityError>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait;
fn get_prompt<'life0, 'life1, 'life2, 'life3, 'async_trait>(
&'life0 self,
id: &'life1 PromptId,
args: Value,
ctx: &'life2 mut CapabilityContext<'life3>,
) -> Pin<Box<dyn Future<Output = Result<PromptContents, CapabilityError>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
'life3: 'async_trait;
}Expand description
A provider of parameterised prompt templates.
Implement this trait to offer reusable prompt templates that the host can render with user-supplied arguments and inject into the conversation transcript. The agentkit MCP bridge uses this trait to surface MCP-server prompts into the agentic loop.
Required Methods§
Sourcefn list_prompts<'life0, 'async_trait>(
&'life0 self,
) -> Pin<Box<dyn Future<Output = Result<Vec<PromptDescriptor>, CapabilityError>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
fn list_prompts<'life0, 'async_trait>(
&'life0 self,
) -> Pin<Box<dyn Future<Output = Result<Vec<PromptDescriptor>, CapabilityError>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
Lists all prompt templates currently available from this provider.
§Errors
Returns CapabilityError if the provider cannot enumerate its
prompts.
Sourcefn get_prompt<'life0, 'life1, 'life2, 'life3, 'async_trait>(
&'life0 self,
id: &'life1 PromptId,
args: Value,
ctx: &'life2 mut CapabilityContext<'life3>,
) -> Pin<Box<dyn Future<Output = Result<PromptContents, CapabilityError>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
'life3: 'async_trait,
fn get_prompt<'life0, 'life1, 'life2, 'life3, 'async_trait>(
&'life0 self,
id: &'life1 PromptId,
args: Value,
ctx: &'life2 mut CapabilityContext<'life3>,
) -> Pin<Box<dyn Future<Output = Result<PromptContents, CapabilityError>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
'life3: 'async_trait,
Renders a prompt template with the given arguments.
§Arguments
id- The unique prompt identifier, as returned in aPromptDescriptor.args- A JSON value containing the template arguments, validated against the prompt’sPromptDescriptor::input_schema.ctx- The shared capability context for this turn.
§Errors
Returns CapabilityError::Unavailable if the prompt does not exist,
CapabilityError::InvalidInput if the arguments are malformed, or
CapabilityError::ExecutionFailed if rendering fails.