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v0.5.1 - The Hive Gets a Brain

Release Date: February 18, 2026 v0.5.1 is our most ambitious release yet. Hive agents can now build other agents — the new Hive Coder meta-agent writes, tests, and fixes agent packages from natural language. The runtime grows multi-graph support so one session can orchestrate multiple agents simultaneously. The TUI gets a complete overhaul with an in-app agent picker, live streaming, and seamless escalation to the Coder. And we’re now provider-agnostic: Claude Code subscriptions, OpenAI-compatible endpoints, and any LiteLLM-supported model work out of the box.

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Highlights

Hive Coder

A native meta-agent that builds complete agent packages from natural language specifications.
# Launch the Coder directly
hive code

# Or escalate from any running agent
Ctrl+E  # or /coder in chat

Multi-Graph Runtime

Load, manage, and switch between multiple agent graphs in a single session.Six new lifecycle tools: load_agent, unload_agent, start_agent, restart_agent, list_agents, get_user_presence

TUI Revamp

Ground-up rebuild with agent picker, live streaming, PDF attachments, and multi-graph commands.New features:
  • Agent Picker (Ctrl+A)
  • Live streaming pane
  • PDF attachments (/attach)
  • Multi-graph commands

Provider-Agnostic LLMs

Support for 100+ LLM providers through LiteLLM.
  • Claude Code subscriptions
  • OpenAI-compatible endpoints
  • Any LiteLLM model

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What’s New

Architecture & Runtime

  • Hive Coder meta-agent - Natural-language agent builder with reference docs and guardian watchdog
  • Multi-graph agent sessions - 6 lifecycle tools for managing multiple agents
  • Claude Code subscription support - OAuth token refresh with auto-detection
  • OpenAI-compatible endpoint support - api_base and extra_kwargs in RuntimeConfig
  • Remove deprecated node types - Migration to event_loop node type
  • Interactive credential setup - Guided setup with health checks
  • Pre-start confirmation prompt - Allow credential updates before execution
  • Event bus multi-graph support - graph_id on events, filter_graph on subscriptions
  • In-app agent picker (Ctrl+A) - Tabbed modal with metadata badges
  • Runtime-optional TUI startup - Launch without pre-loaded agent
  • Hive Coder escalation (Ctrl+E) - Escalate and return
  • PDF attachment support - /attach and /detach commands
  • Streaming output pane - Dedicated RichLog widget
  • Multi-graph TUI commands - /graphs, /graph, /load, /unload
  • Agent Guardian watchdog - Event-driven failure monitor
ToolDescriptionContributor
Discord4 MCP tools for guilds, channels, and messages@mishrapravin114
Exa Search API4 AI-powered search tools with neural/keyword search@JeetKaria06
Razorpay6 payment processing tools for payments and invoices@shivamshahi07
Google DocsDocument creation, reading, and editing with OAuth@haliaeetusvocifer
Gmail enhancementsExpanded mail operations@bryanadenhq
  • Default node type → event_loop - Simplified agent creation
  • Default max_node_visits → 0 (unlimited) - Reduced friction for feedback loops
  • Remove function field from NodeSpec - Follows deprecation
  • LiteLLM OAuth patch - Correct header construction
  • Orchestrator config centralization - Centralized configuration
  • System prompt datetime injection - Time-aware agent behavior
  • Utils module exports - Proper __init__.py exports
  • Increased default max_tokens - Opus 4.6: 32768, Sonnet 4.5: 16384

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Bug Fixes

  • Flush WIP accumulator outputs on cancel/failure
  • Stall detection state preserved across resume
  • Skip client-facing blocking for event-triggered executions
  • Executor retry override scoped to EventLoopNode instances
  • Add _awaiting_input flag to prevent input injection race conditions
  • Fix TUI streaming display
  • Fix _return_from_escalation crash
  • Fix tools registration for Google Docs credentials
  • Fix email agent version conflicts
  • Fix coder tool timeouts

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Agent Updates

  • Email Inbox Management - Consolidated agents with updated prompts
  • Job Hunter - Updated node prompts with PDF resume selection
  • Deep Research Agent - Revised node implementations
  • Tech News Reporter - Revised node prompts
  • Vulnerability Assessment - Expanded assessment instructions

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Breaking Changes

  • Deprecated node types raise RuntimeError - llm_tool_use, llm_generate, function, router, human_input now fail. Migrate to event_loop.
  • NodeSpec.node_type defaults to "event_loop" (was "llm_tool_use")
  • NodeSpec.max_node_visits defaults to 0 / unlimited (was 1)
  • NodeSpec.function field removed - Use event_loop nodes with tools instead

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Migration Guide

# These now raise RuntimeError
NodeSpec(node_type="llm_tool_use", ...)
NodeSpec(node_type="function", function=my_func, ...)

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Community Contributors

A huge thank you to everyone who contributed to this release:
  • Richard Tang (@RichardTang-Aden) - Interactive credential setup, pre-start confirmation, email agent consolidation
  • Pravin Mishra (@mishrapravin114) - Discord integration
  • Jeet Karia (@JeetKaria06) - Exa Search API integration
  • Shivam Shahi (@shivamshahi07) - Razorpay integration
  • Siddharth Varshney (@Siddharth2624) - Utils module exports
  • @haliaeetusvocifer - Google Docs integration
  • Bryan (@bryanadenhq) - PDF selection, inbox agent fixes
  • @paarths-collab - Documentation improvements

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Upgrading

git pull origin main
uv sync

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Try the New Hive Coder

# Launch Coder directly
hive code

# Or from TUI -- press Ctrl+E to escalate
hive tui

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What’s Next

  • Agent-to-agent communication - One agent’s output triggers another
  • Cost visibility - Detailed runtime log of LLM costs
  • Persistent webhook subscriptions - Survive agent restarts
  • Remote agent deployment - Run agents as long-lived services

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Previous Releases

For complete release history, visit the GitHub Releases page.

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