Struct ExtensionRegistry 

pub struct ExtensionRegistry { /* private fields */ }

Manages a collection of loaded extensions.

Supports:

• Registering / unregistering extensions by name
• Enabling / disabling at runtime
• Hot-reloading from the original source path
• Broadcasting events to all enabled extensions with graceful error handling
• Collecting tools and commands from enabled extensions

Implementations

impl ExtensionRegistry

pub fn new() -> Self

Create an empty registry.

pub fn register(&mut self, ext: Arc<dyn Extension>)

Register an extension (in-memory).

If an extension with the same name already exists it is replaced.

pub fn register_with_library( &mut self, ext: Arc<dyn Extension>, source_path: PathBuf, library: Library, )

Register an extension that was loaded from a shared library, keeping the library handle alive for hot-reload.

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

Unregister an extension by name.

Calls on_unload on the extension before removing it. Returns false if the extension was not found.

pub fn disable(&mut self, name: &str) -> Result<(), ExtensionError>

Disable an extension at runtime.

Disabled extensions are skipped during event broadcasting and tool/command collection, but remain loaded.

pub fn enable( &mut self, name: &str, ctx: &ExtensionContext, ) -> Result<(), ExtensionError>

Enable a previously disabled extension.

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

Check whether an extension is currently enabled.

pub fn hot_reload( &mut self, name: &str, ctx: &ExtensionContext, ) -> Result<(), ExtensionError>

Hot-reload an extension from its original source path.

The old extension is unloaded, the shared library is re-opened, and the new extension is loaded in its place. Tools and commands from the old extension are no longer returned.

pub fn all_tools(&self) -> Vec<Arc<dyn AgentTool>>

Collect all tools from every enabled extension.

pub fn all_commands(&self) -> Vec<Command>

Collect all commands from every enabled extension.

pub fn emit_load(&self, ctx: &ExtensionContext)

Broadcast on_load to all enabled extensions.

pub fn emit_unload(&self)

Broadcast on_unload to all enabled extensions.

pub fn emit_message_sent(&self, msg: &str)

Broadcast on_message_sent to all enabled extensions.

pub fn emit_message_received(&self, msg: &str)

Broadcast on_message_received to all enabled extensions.

pub fn emit_tool_call(&self, tool: &str, params: &Value)

Broadcast on_tool_call to all enabled extensions.

pub fn emit_tool_result(&self, tool: &str, result: &AgentToolResult)

Broadcast on_tool_result to all enabled extensions.

pub fn emit_session_start(&self, session_id: &str)

Broadcast on_session_start to all enabled extensions.

pub fn emit_session_end(&self, session_id: &str)

Broadcast on_session_end to all enabled extensions.

pub fn emit_settings_changed(&self, settings: &Settings)

Broadcast on_settings_changed to all enabled extensions.

pub fn emit_event(&self, event: &AgentEvent)

Broadcast an agent event to every enabled extension.

pub fn get(&self, name: &str) -> Option<Arc<dyn Extension>>

Get a reference to an extension by name.

pub fn names(&self) -> impl Iterator<Item = &str>

Iterate over registered extension names.

pub fn extensions(&self) -> impl Iterator<Item = &Arc<dyn Extension>>

Iterate over registered extensions.

pub fn manifest(&self, name: &str) -> Option<ExtensionManifest>

Get the manifest for an extension by name.

pub fn len(&self) -> usize

Number of registered extensions.

pub fn is_empty(&self) -> bool

Whether any extensions are registered.

pub fn errors(&self) -> Vec<ExtensionErrorRecord>

Get all recorded errors.

pub fn clear_errors(&self)

Clear all recorded errors.

Trait Implementations

impl Debug for ExtensionRegistry

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ExtensionRegistry

fn default() -> Self

Returns the “default value” for a type.