v2026.6.3

facebookresearch/tribev2v2026.6.3Jun 3, 2026by virattt

AI Summary

Dexter v2026.6.3 introduces the `spawn_subagent` feature to delegate tasks to isolated workers and enhances `web_fetch` with HTML-to-markdown conversion and caching.

Key Highlights

  • `spawn_subagent` to delegate focused sub-tasks to isolated workers.
  • Improved `web_fetch` with Readability/Turndown HTML-to-markdown and HTTP caching.
  • CLI subagent progress UI with per-delegate status.

New Features

  • `spawn_subagent` capability for parallel task execution.
  • CLI subagent progress UI.
  • Enhanced `web_fetch` with caching and fast-model extraction.

Full Release Notes

### Changes

- Add `spawn_subagent` to delegate focused sub-tasks to isolated workers (`general-purpose`, `research`, `analysis`); emit multiple calls in one turn to run independent tasks in parallel
- Add CLI subagent progress UI with per-delegate status, tool-use counts, and rolled-up activity
- Improve `web_fetch` with Readability/Turndown HTML-to-markdown, HTTP caching, and fast-model extraction from fetched pages