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Grok Build

xAI · CLI

Grok Build 0.2.58

0.2.57→0.2.58·June 19, 2026 at 4:36 AM UTC

Patch release adding --background-wait-timeout and --no-wait-for-background flags for headless runs, plus documentation and completion updates.

Changelog

  • [new] --background-wait-timeout flag sets the maximum seconds to wait for background work (bash/monitor tasks, non-persistent subagents) after the first agent turn ends in headless mode.
  • [new] --no-wait-for-background flag causes the CLI to exit immediately after the first agent turn without waiting for pending background work (headless only).
  • [changed] Shell completions for bash, zsh, fish, elvish, and PowerShell now include the two new background-wait flags with appropriate descriptions.
  • [changed] docs/user-guide/20-background-tasks.md updated to reflect the revised get_command_or_subagent_output usage (no more block=true parameter; timeout_ms is the primary way to wait) and related guidance on polling.

Under the hood

  • Bundled content manifest and version metadata updated to 0.2.58.
  • Example configuration in .grok/README.md now shows a 256k context window for the Grok Build proxy model.

Upgrade notes

No manual steps required. The new flags are optional and only affect headless (-p) usage.

Older release← 0.2.57Newer release→ 0.2.59
All Grok Build releases →