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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 v2.1.265 ·

Slack entrypoint detection extended with a second check

Detecting Claude Code running inside Slack now checks a second source in addition to the environment variable

TierUnder the hoodhow much it should matter to you
Useful1my rating, 1 to 5
Signal1worth watching, 1 to 5
AreaSlack Integrationwhat it touches
KindInternal Changesin v2.1.265,
Under the hood

Detecting Claude Code running inside Slack now checks a second source in addition to the environment variable

What

Claude Code already detected when it was running inside Slack by checking whether the CLAUDE_CODE_ENTRYPOINT environment variable was set to claude_in_slack or claude-in-slack. Now a second check has been added that looks at a different source for the same values.

Why

This makes the Slack detection more reliable by not depending on a single source, though the finding doesn't specify what the new source is or why the first check alone was insufficient.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhat the second detection source checks (referred to only as an internal function) is not specified.

See this entry in the whole of v2.1.265 →

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