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Werk #19510: Clarify that agent registration token is for one-time use

Component Setup
Title Clarify that agent registration token is for one-time use
Date Mar 24, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.6.0b1
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.5.0b2
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

When using the agent registration slideout, the token generation button and all related status messages now explicitly say "one-time token". Previously the UI just said "Generate token", leaving it unclear that the token can only be used once.

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