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 v2.1.246 Home All releases olderv2.1.245 v2.1.247newer
Claude Code v2.1.246

Background jobs with a duplicate name get a numbered suffix

You'll notice
Useful3 Signal1
Background Tasks

Background jobs with clashing names get a numbered suffix so you can tell them apart.

What

Before a background session starts, its name is checked against the names of existing jobs and, if it clashes, is given a suffix like (2). Repeat clashes read the existing number back out and increment it.

Details
  • The seed records that the name came from a collision rather than being chosen directly.
  • Renaming is best effort: if the list of existing jobs cannot be read, the original name is used as is.
Evidence

nameSource: "collision"

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.246 →