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 v2.1.108 Home All releases olderv2.1.107 v2.1.109newer
Claude Code v2.1.108

Improved Sleep/Blocking Guidance

The guidance for sleep commands and blocking behavior has been substantially rewritten to emphasize Monitor as the preferred alternative.

Details
  • Old: sleep N as first command with N ≥ 2 is blocked with brief explanation
  • New: "Long leading sleep commands are blocked. To poll until a condition is met, use Monitor with an until-loop (e.g. until <check>; do sleep 2; done)"
  • Additional guidance: "Do not chain shorter sleeps to work around the block"
  • General sleep advice simplified from "keep the duration short (1-5 seconds)" to "keep the duration short"
Evidence

Blocking guidance improvements (search for "Long leading" and "until-loop")

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

See this entry in the whole of v2.1.108 →