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

Annotations declare readOnlyHint=false, idempotentHint=false, and destructiveHint=false, so the mutation/safety profile is already covered. The description adds real behavioral context beyond that: it explains the downstream consequence of enabling (builds on the tracked branch rolled out unattended) and the consequence of disabling (built but waiting for explicit deploy). It omits permission requirements but is otherwise informative.

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 tight sentences, front-loaded with the core action, followed by the effect and the requirement rationale. Every clause carries meaning, though the closing rationale about defaults is slightly editorial.

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 small mutation tool with a 100%-covered 3-parameter schema, annotations, and no output schema, the description supplies the effect of both switch states and the required-input rule. What an agent needs to invoke it correctly is essentially present, with only permissions left unaddressed.

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 coverage is 100%, so all three parameters already carry inline descriptions, including the boolean semantics of 'enabled' and the scoping behavior of 'environment'. The description reinforces the required/explicit nature of 'enabled' but adds no syntax or format detail beyond what the schema provides; baseline 3 is appropriate.

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?

The description states a specific verb and resource ('Turn an Application's push-to-deploy switch on or off') and immediately characterizes the resource so it is distinguishable from read siblings like get_application_auto_deploy. It does not name any sibling explicitly, so it stops short of full differentiation, but the purpose is unambiguous.

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?

Usage is implied rather than stated: it conveys that both on and off are deliberate acts requiring an explicit value, which hints at intent. However, it never says when to reach for this versus get_application_auto_deploy (to read state) or deploy_application (to trigger a deploy), so routing guidance is left to inference.

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