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reset_vcenter_alarm

Clear triggered vCenter alarms back to normal state. Provide entity and alarm name to reset alarms after resolving the underlying issue.

Instructions

[WRITE] Clear triggered vCenter alarms back to normal state.

Uses AlarmManager.ClearTriggeredAlarms. The named alarm no longer appears in the active alarm list. Use this after resolving the underlying issue. Use list_vcenter_alarms to find entity_name and alarm_name values.

Gotcha: vSphere has no per-alarm clear — this clears ALL triggered alarms matching the named alarm's entity type (host/VM/all) and current status (red/yellow). The response's 'scope' field states exactly what was cleared.

Args: entity_name: Name of the entity with the alarm (VM name, host name, or cluster name). alarm_name: Exact alarm definition name from list_vcenter_alarms output. target: Optional vCenter target name from config.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
entity_nameYes
alarm_nameYes
targetNo
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations indicate write operation. Description adds valuable behavioral details: gotcha about clearing all matching alarms, response 'scope' field, and that it clears back to normal. Exceeds what annotations provide.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Concise with front-loaded purpose. Uses [WRITE] marker, gotcha, and Args list. Could be more structured but efficient overall.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no output schema, mentions response 'scope' field. Covers pre-requisite actions and clearing behavior. Missing permission requirements but adequate for sibling context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Input schema has 0% description coverage, but description includes a dedicated Args section with explanations for all three parameters, adding full meaning beyond schema types.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

Clearly states it clears triggered vCenter alarms to normal state. Uses specific verb and resource. Does not explicitly differentiate from sibling 'acknowledge_vcenter_alarm', but the write nature is clear.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Provides usage context: use after resolving underlying issue, and use list_vcenter_alarms to find parameters. But does not mention when to use alternatives like acknowledge_vcenter_alarm, missing explicit exclusions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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