Function hook_cursor_session_start

src/hooks/cursor.rs:260–288

Cursor `sessionStart` hook handler (fire-and-forget). Emits Cursor's `sessionStart` output shape (`additional_context` + `env`) steering the agent toward tracedecay MCP tools and reporting index freshness for the resolved workspace. Never blocks session creation.

()

/// steering the agent toward tracedecay MCP tools and reporting index freshness
/// for the resolved workspace. Never blocks session creation.
pub async fn hook_cursor_session_start() -> i32 {
    let event = read_hook_event!();
    let root = cursor_project_root_from_event(&event);
    record_hook_invoked(root.as_deref(), HintAgent::Cursor, "sessionStart", &event);
    ingest_cursor_transcript_for_event(
        &event,
        Some(CURSOR_CATCH_UP_INGEST_MAX_BYTES),
        CURSOR_SESSION_INGEST_BUDGET,
    )
    .await;
    let mut context = cursor_session_context_for_root(root.as_deref()).await;
    if let Some(root) = root.as_deref() {
        let session_id = serde_json::from_str::<Value>(&event)
            .ok()
            .as_ref()
            .and_then(event_session_id);
        if let Some(digest) =
            memory_inject::session_memory_digest(root, session_id.as_deref()).await
        {
            append_context_block(&mut context, &digest);
        }
        memory_inject::regenerate_cursor_memory_rule(root).await;
    }
    if session_start_from_compaction(&event) {
        append_context_recovery_hint(&mut context);
    }
    println!("{}", cursor_session_start_json(root.as_deref(), &context));
    0
}

/// Builds the lean Cursor `sessionStart` context for a resolved project root.
///