Struct CommandsExtension 

pub struct CommandsExtension {
    pub session_info: Arc<Mutex<Option<SessionInfoInternal>>>,
    /* private fields */
}

Built-in commands extension - provides all 22 pi slash commands. Uses the same Extension trait as all other extensions, making built-in commands indistinguishable from user-provided commands.

Fields

session_info: Arc<Mutex<Option<SessionInfoInternal>>>

Current session info for /session command.

Implementations

impl CommandsExtension

pub fn new(available_models: Vec<String>) -> Self

pub fn set_session_info(&self, info: SessionInfoInternal)

Update the session info that /session will display.

Trait Implementations

impl Extension for CommandsExtension

fn name(&self) -> Cow<'static, str>

fn commands(&self) -> Vec<SlashCommand>

Slash commands this extension provides (e.g. /quit, /model). Built-in commands and extension commands use the same interface.

fn tools(&self) -> Vec<ToolDefinition>

Tools this extension provides (LLM-callable), each with its own prompt metadata.

fn skills(&self) -> SkillSet

Skills this extension provides (AgentSkills-compatible). Merged into the session’s skill set for /skill:name expansion and system prompt.

fn before_compact( &self, _first_kept_entry_id: &str, _tokens_before: u64, _reason: &str, _cancel: &Cancel, ) -> Option<BeforeCompactResult>

Called before compaction runs (matching pi’s session_before_compact). Return Some(BeforeCompactResult { cancel: true, .. }) to cancel compaction. Return Some(BeforeCompactResult { cancel: false, summary: Some(...), .. }) to provide a custom summary instead of calling the provider. Return None to let the default compaction proceed.

fn after_compact( &self, _summary: &str, _first_kept_entry_id: &str, _tokens_before: u64, _estimated_tokens_after: u64, _from_hook: bool, _reason: &str, _cancel: &Cancel, )

Called after compaction completes (matching pi’s session_compact).