Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.187 Home All releases olderv2.1.186 v2.1.190newer
Claude Code v2.1.187

Subagent nesting depth limit — explicit error

What

When a subagent tries to spawn another agent beyond the nesting depth cap, it now receives a clear error message explaining what happened and instructing it to complete the task directly.

Details
  • Error: "Subagent nesting limit reached (depth N of M). Complete this task directly using your tools instead of spawning another agent."
  • Previously this situation could fail silently or produce a confusing error
Evidence

New depth-cap error (search for "Subagent nesting limit reached")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.187 →