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

Annotations already declare readOnlyHint=true, and 'Read-only' merely restates that, earning little. The added value is the content scope (what fields the record includes), but there is no disclosure of auth requirements, error behavior, or whether the summary is truncated.

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/fragments, content scope front-loaded before the safety note. The trailing 'Read-only' is redundant with the annotation but costs almost nothing.

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 single-parameter read tool with no output schema, enumerating the returned content is exactly the right compensation. It stops short of clarifying overlap with deployment/job-specific siblings, which would have made it complete.

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?

Only one parameter (application_id) and schema description coverage is 100%, so the schema already carries the semantics. The description adds nothing about ID format or sourcing, which is the expected baseline when the schema does the work.

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?

Specific verb ('Get') plus resource ('one Application's details') and it enumerates what the payload contains (repository coordinates, branch, chart, deployment summary, state). The enumeration implicitly distinguishes it from narrow siblings like get_application_deployments or get_application_jobs, but no sibling is named directly.

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?

The singular 'one Application' and the required application_id imply the usage pattern: fetch detail for a known application. There is no explicit when-to-use vs. when-to-use list_applications, and no guidance on when a narrower sibling (deployments, jobs, timeline) is preferable.

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