Worth Knowing

Claude Code regularly sends each background agent’s transcript to its model

Developers using Claude Code with background agents can use this workaround to prevent hidden background requests from draining their API budgets or subscription rate limits.

An investigation by Flamerix AI found that Claude Code sends the full transcript of each background agent to its model every 30 seconds to generate a brief status line, consuming 15% to 20% of total token spend. Because there is no official setting to disable this default behavior, the authors released a Bun preload script that intercepts and disables the summary timer.

  • Claude Code
  • Anthropic
  • Claude Opus
  • Flamerix AI

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