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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.275 ·

REPL-mode entrypoint now classified into terminal/host/evals for telemetry

REPL-mode startup is now classified as terminal, host, or evals for telemetry purposes

TierUnder the hoodhow much it should matter to you
Useful1my rating, 1 to 5
Signal1worth watching, 1 to 5
AreaREPLwhat it touches
KindInternal Changesin v2.1.275,
Under the hood

REPL-mode startup is now classified as terminal, host, or evals for telemetry purposes

What

A new function determines whether the current run counts as a 'terminal', 'host', or 'evals' entrypoint for the async REPL (the interactive prompt loop), based on the entrypoint type, whether input is streamed, the sdkUrl, and asyncReplRequested. This classification feeds a couple of new telemetry emitters.

Why

This lets Claude Code distinguish and report which kind of environment is starting an async REPL session, which can help with understanding usage across terminal, host, and evaluation contexts.

See this entry in the whole of v2.1.275 →

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