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 v2.1.247 Home All releases olderv2.1.246 v2.1.248newer
Claude Code v2.1.247

Locally written subagent transcripts are marked so they are not refetched

Under the hood
Useful2 Signal2
Cloud Sessions

Subagent transcripts written locally are marked so resume does not fetch them again remotely.

What

When transcript entries carrying a subagent id are written locally, that id is recorded in a do-not-fetch set, so the newer resume path does not pull the same subagent's transcript back from the remote store on demand.

Details
  • The recording happens before the check that can skip persisting the entry.
  • The surrounding on-demand subagent transcript loading is itself new in this build and only runs when the resume path registers its event reader; without that, none of this is active.
Evidence

noteAgentWrittenLocally

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

See this entry in the whole of v2.1.247 →