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

With no annotations, the description carries the full disclosure burden. It usefully clarifies the return bundle (file path plus patch or whole-file content) and that a separate get_post is unnecessary, but says nothing about authentication needs, whether the call has any side effects on the server, or error behavior for an invalid id.

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?

One sentence, zero waste, and the differentiating payload detail is front-loaded ahead of the get_post comparison. Nothing redundant or padded.

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 one-parameter fetch tool with no annotations and no output schema, the description covers the critical uncertainty (it is a bundled fetch, not a separate get_post, and what it returns). Only minor gaps remain around auth and failure behavior.

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?

There is a single parameter ('id') and schema description coverage is 100%, so the schema already documents it fully. The description adds no format or constraint detail beyond what the schema provides, making the baseline 3 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?

States a specific verb (retrieve what is needed to apply) and resource (a Fork improvement), and spells out the payload: file path plus patch or whole-file content. It explicitly distinguishes itself from the get_post sibling, so an agent can tell them apart without opening schemas, though the name 'install' versus the fetch-oriented phrasing leaves slight ambiguity about whether it mutates anything.

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 description names the alternative (get_post) and the condition that eliminates it: use this call instead of fetching the post first when applying a Fork improvement. It gives clear context but no explicit when-not-to-use cases, so it falls just short of full routing guidance.

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