Werk #18550: Improve diagnostic for mk-oracle plugins

Component	Checks & agents
Title	Improve diagnostic for mk-oracle plugins
Date	Jan 20, 2026
Level	Trivial Change
Class	New Feature
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.6.0b1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.5.0b1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

Starting with this release, invoking mk-oracle plugins from the command line provides detailed information about undefined mandatory environment variables, as well as missing executable or configuration files.

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