Werk #18603: Changed discovery ruleset names in the REST API

Component	REST API
Title	Changed discovery ruleset names in the REST API
Date	May 21, 2026
Level	Trivial Change
Class	New Feature
Compatibility	Incompatible - Manual interaction might be required
Checkmk versions & editions	3.0.0b1 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

This affects users who are configuring service discovery rulesets via Checkmk's REST API version 1.0.

When referring to discovery rulesets, their names now should be prefixed with discovery_parameters:. This is consistent with the HW/SW inventory parameters (inv_parameters:) and the check parameters ( checkgroup_parameters:).

For example: The ruleset "File system discovery" used to be referred to by inventory_df_rules -- now it should be discovery_parameters:inventory_df_rules.

During the lifetime of Checkmk 3.0 both values will be accepted. Adding the prefix becomes mandatory in Checkmk 3.1.

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