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

Annotations already declare readOnlyHint=false, destructiveHint=true, and idempotentHint=false, so the safety profile is known. The description adds genuine value by disclosing partial-update semantics ('only the fields present in the body are changed'), but says nothing about permissions, reversibility, or the tension between a patch-style update and destructiveHint=true.

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

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

Two short sentences, front-loaded with the action and immediately followed by the key behavioral constraint. Every clause carries weight; only the 'e.g. rename it' example is mildly redundant given name is the sole optional field.

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

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

For a simple two-parameter update tool with full schema coverage and annotations, the description covers the essential patch semantics and needs no return-value explanation (no output schema). Missing only edge detail like permission requirements, which is acceptable at this complexity.

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

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

Schema description coverage is 100% – both name and automation_id are documented in the schema with constraints (uuid pattern, maxLength). The description hints at the rename use case but adds no format or syntax detail beyond what the schema already provides, so the baseline of 3 applies.

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

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

States a specific verb and resource ('Update an automation') and gives a concrete example ('rename it'). It does not, however, differentiate itself from close siblings such as updateAutomationTabs or moveAutomationsToFolder, so an agent must rely on the name alone to disambiguate.

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

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

There is no explicit when-to-use guidance, no prerequisites, and no naming of alternatives. The sentence about only present fields changing describes mechanics rather than selection criteria, so an agent gets no help deciding between this and sibling update/move/duplicate tools.

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