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docs: guard labels accept uppercase ASCII letters - #975

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Oct 8, 2026
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Guard labels may now contain ASCII letters of either case, and are matched case-sensitively. The docs still said uppercase was rejected and recommended tools.get_weather over tools.getWeather.

The label rules on the get-started page, the Go and Python references, the Vercel AI action row, the remote-policies page and llms-full.txt now describe the current grammar. Each says which SDK release first accepts uppercase: @arcjet/guard 1.14.1, arcjet 1.4.0 for Python, and arcjet-go v1.2.0. Earlier versions still reject a hardcoded uppercase label. The remote-policies page also says a policy whose label differs from another live policy's only in case cannot be saved.

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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arcjet-rei force-pushed the rei/docs/ENG-1410-uppercase-guard-labels branch from fa9785e to 4b8aa6e Compare October 8, 2026 13:38
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arcjet-rei added this pull request to the merge queue Oct 8, 2026
Merged via the queue into main with commit e05ba4f Oct 8, 2026
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arcjet-rei deleted the rei/docs/ENG-1410-uppercase-guard-labels branch October 8, 2026 13:59
@arcjet-review arcjet-review Bot removed the needs review Awaiting human review label Oct 8, 2026

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