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Run helix --version and mutagent --version to see which builds you have. Inside Helix, /changelog prints the notes for the recent Helix releases.
Web app Configuration, new LLM providers, GitHub and Slack
Web app
  • A new Configuration page holds the workspace’s LLM Providers, Environments and Integrations, plus the shared Sandbox Providers list. LLM providers moved here from Settings.
  • Signing up asks only for your organization’s name; Mutagent creates a workspace named Default workspace in it. The next step, Connect GitHub, can be skipped.
LLM providers
  • OpenRouter (openrouter) and Z.AI (Coding Plan) (zai-coding-plan) can be added to a workspace. The default Z.AI model is glm-5.3.
Cloud sessions, GitHub and Slack
  • Cloud sessions, managed agents, and GitHub and Slack runs are in early access: not every account is let in yet.
  • A cloud session stopped after 15 minutes of inactivity wakes up when you send it a message. The web app shows Waking up…, then delivers your message, and the conversation continues in the same thread.
  • Connect GitHub and Slack from Configuration › Integrations. A Slack thread keeps one session for up to 1 hour; mention the app in a new message to start another.
Trace sources
  • Langfuse and OpenObserve can be connected to a workspace with mutagent integrations sources add.
Helix 0.0.34-m0, CLI workspaces
Helix 0.0.34-m0
  • /cloud checks whether cloud sandboxes are enabled for your account before it starts anything. If they are not, it says so in one line and leaves your local session as it was.
  • /cloud status shows whether cloud sandboxes are enabled for your account, or tells you to run mutagent login when your sign-in has expired.
Helix 0.0.33-m0
  • /cloud runs your turns in a cloud sandbox while you keep the local session. /cloud stop removes the sandbox and reports removing, then removed.
  • A session is driven by a goal with done-when criteria. The goal cannot be completed until every criterion has evidence.
  • helix -p "/diagnose …", and any other Helix command run headless, runs a real turn and prints its reply.
  • After the curl install, helix works in the same terminal when ~/.local/bin or ~/bin is on your PATH.
  • Web search settings with Exa and Firecrawl; Anthropic and xAI models on Google Vertex AI from /login; plan mode ends with Approve, Keep or Discard.
mutagent CLI: organizations and workspaces
  • mutagent login stores an organization key that works in every workspace you belong to in that organization, for 30 days.
  • mutagent workspaces use <name> selects the workspace every later command works in. --workspace <name|id> overrides it for one command, then MUTAGENT_WORKSPACE_ID.
  • --org <id|slug|name> checks the key’s organization; a mismatch exits 1 and sends nothing. mutagent login --org <slug> signs in to another organization.
  • See Accounts, organizations and workspaces.
Session modes
  • Cloud sessions have two modes, named the same in the CLI, the SDK and the API: headless (one task, the reply printed) and interactive (a session you keep sending to).
Helix 0.0.32-m0, install, managed agents
Helix 0.0.32-m0
  • A sub-agent can be messaged for as long as it exists, including after it finishes; a message to a finished sub-agent resumes it.
  • Sub-agents can be named when spawned, and SendMessage, StopAgent and ListAgents also reach other Helix sessions on the same machine.
Install
  • mutagent install helix installs the standalone helix binary, the same one the curl installer puts in ~/.mutagent/bin. The earlier plug-in install into Claude Code and Codex is retired; see Standalone binary.
Managed agents
  • mutagent agent deploy <agent.md> checks, uploads and activates an agent.md folder, and mutagent helix agent @<slug> -p "<task>" runs it in a cloud sandbox. agent check and agent pack work locally, without a cloud sandbox.
Environments, provider mirror
  • Environments: mutagent env set stores the variables and secrets an agent’s tools need, per workspace. Secrets are write-only: they are never printed back.
  • mutagent providers mirror copies the LLM provider keys you signed in with in Helix into the current workspace, when you ask it to.
Evaluator and Diagnostics
  • The Evaluate and Diagnose stages ship inside Helix only. The separate npm installs for them are retired; install Helix instead.