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

With no annotations, the description carries the full behavioral burden. It usefully discloses the 404 outcome for non-owned custom definitions, which is real behavioral context. It does not state whether the call is read-only, what auth is required, or anything about caching/rate limits, leaving meaningful gaps for a tool with zero annotation coverage.

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 tightly packed sentences, front-loaded with purpose and then the access constraint. No filler or redundancy; every clause earns its place.

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?

No output schema and no annotations, so the description must stand in for them, and it does reasonably well by naming the returned fields and the visibility/404 behavior. It is not fully complete for a resource-fetch tool (no note on auth, id provenance, or error cases beyond 404), but nothing critical is missing.

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 0% and the sole 'id' parameter is an untyped-by-description integer. The phrase 'by id' only weakly maps the parameter to the application-definition identity; it adds no format, range, or source guidance (e.g., where the id comes from). Minimal value over the bare schema.

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 ('Get') and resource ('an application definition') and even enumerates the returned content (containers, ports, volumes, env vars), which is genuinely informative. It does not, however, distinguish itself from near-neighbor siblings such as get_app, get_app_details, or get_app_link, so an agent must infer the boundary.

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 visibility rule ('catalog definitions are shared; custom definitions are visible only to the user who created them (404 otherwise)') is a useful precondition for when this call will succeed versus fail. There is no explicit guidance on when to prefer this over get_app/get_app_details, so usage is implied rather than stated.

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