🚀 Release v0.4.0

79 commits since v0.3.2 | Target: main @ 80a41b4

✨ Highlights

This is a major release introducing the Event Loop Node architecture, an interactive TUI dashboard, ClientIO gateway for client-facing agents, a GitHub tool, Slack tool integration (45+ tools), and a full migration from pip to uv for package management.

🆕 Features

🔄 Event Loop Node Architecture

Implement event loop node framework (WP1-4, WP8, WP9, WP10, WP12) — a new node type that supports iterative, multi-turn execution with tool calls, judge-based acceptance, and client-facing interaction
Emit bus events for runtime observability
Add graph validation for client-facing nodes
Soft-fail on schema mismatch during context handoff (no more hard failures)

🖥️ Interactive TUI Dashboard

Add interactive TUI dashboard for agent execution with 3-pane layout (logs/graph + chat)
Implement selectable logging, interactive ChatREPL, and thread-safe event handling
Screenshot feature, header polish, keybinding updates
Lazy widget loading, Horizontal/Vertical layout fixes
Integrate agent builder with TUI

💬 ClientIO Gateway

Implement ClientIO gateway for client-facing node I/O routing
Client-facing nodes can now request and receive user input at runtime

🐙 GitHub Tool

Add GitHub tool for repository and issue management
Security and integration fixes from PR feedback

💼 Slack Tool Integration

Add Slack bot integration with 45+ tools for multipurpose integration
Includes CRM support capabilities

🔑 Credential Store

Provider-based credential store (aden provider credential store by provider)
Support non-OAuth key setup in credential workflows
Quickstart credential store integration

📦 Migration to uv

Migrate from pip to uv for package management
Consolidate workspace to uv monorepo
Migrate all CI jobs from pip to uv
Check for litellm import in both CORE_PYTHON and TOOLS_PYTHON environments

🛠️ Other Features

Tool truncation for handling large tool outputs
Inject runtime datetime into LLM system prompts
Add sample agent folder structure and examples
Add message when LLM key is not available
Edit bot prompt to decide on technical size of issues
Update skills and agent builder tools; bump pinned ruff version

🐛 Bug Fixes

ON_FAILURE edge routing: Follow ON_FAILURE edges when a node fails after max retries
Malformed JSON tool arguments: Handle malformed JSON tool arguments safely in LiteLLMProvider
Quickstart compatibility: Fix quickstart.sh compatibility and provider selection issues
Silent exit fix: Resolve silent exit when selecting non-Anthropic LLM provider
Robust compaction logic: Fix conversation compaction edge cases
Loop prevention: Prevent infinite loops in feedback edges
Tool pruning logic: Fix incorrect tool pruning behavior
Text delta granularity: Fix text delta granularity and tool limit problems
Tool call results: Fix formulation of tool call results
Max retry reset: Reset max retry counter to 0 for event loop nodes
Graph validation: Fix graph validation logic
MCP exports directory: Handle missing exports directory in test generation tools
Bash version support: Fix bash version compatibility

🏗️ Chores & CI

Consolidate workspace to uv monorepo
Migrate remaining CI jobs from pip to uv
Clean up use of setup-python in CI
Windows lint fixes
Various lint and formatting fixes
Update .gitignore and remove local claude settings
Update issue templates

📖 Documentation

Add Windows compatibility warning
Update architecture diagram source path in README

👏 Contributors

Thanks to all contributors for this release:

@mubarakar95 — Interactive TUI dashboard (3-pane layout, ChatREPL, selectable logging, screenshot feature, lazy widget loading)
@levxn — Slack bot integration with 45+ tools including CRM support
@lakshitaa-chellaramani — GitHub tool for repository and issue management
@Acid-OP — ON_FAILURE edge routing fix after max retries
@Siddharth2624 — Malformed JSON tool argument handling in LiteLLMProvider
@Antiarin — Runtime datetime injection into LLM system prompts
@kuldeepgaur02 — Fix silent exit when selecting non-Anthropic LLM provider
@Anjali Yadav — Fix missing exports directory in MCP test generation tools
@Hundao — Migrate remaining CI jobs from pip to uv
@ranjithkumar9343 — Windows compatibility warning documentation
@Yogesh Sakharam Diwate — Architecture diagram path update in README

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