v2026.6.3

virattt/dexterv2026.6.3Jun 3, 2026by virattt

AI Summary

This major release introduces subagent delegation capabilities, allowing users to spawn isolated workers for focused sub-tasks and run independent tasks in parallel. It also adds a CLI progress UI for tracking subagent execution and significantly improves web_fetch with better HTML-to-markdown conversion and HTTP caching.

Key Highlights

Add spawn_subagent to delegate focused sub-tasks to isolated workers (general-purpose, research, analysis)
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 conversion
Add HTTP caching for web fetches
Add fast-model extraction from fetched pages

New Features

spawn_subagent tool for task delegation
Parallel execution of independent sub-tasks
CLI progress UI for subagent tracking
Enhanced web_fetch with HTML-to-markdown conversion
HTTP caching support
Fast-model content 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