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

The annotations already mark this as destructive and open-world, but the description adds the crucial detail that the new text replaces the whole README and recommends reading the current one first if any content should be kept. That is exactly the behavioral context an agent needs for a destructive overwrite.

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?

The description is front-loaded with the core action and then adds only relevant details: what the README is, that it is a full replacement, and the GetReadme prerequisite. There is no wasted text.

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 destructive mutation with annotations and an output schema, the description is largely complete: it explains the overwrite behavior, required inputs, and a safe read-before-write workflow. It could mention permissions or variant existence requirements, but those are not essential to avoid the main misuse.

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 only 33%, with only the readme parameter documented. The description lists graph ID, variant name, and full README text, but for graphId and variant it mostly restates the parameter names rather than adding format or source semantics, so it only partially compensates for the low schema coverage.

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: replace the README of a graph variant. It also identifies the document as the Markdown README shown on the variant page and distinguishes the write from GetReadme, which reads the current README.

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?

It clearly indicates that this tool publishes/replaces a README and explicitly points to GetReadme when the agent needs to preserve existing content. It does not enumerate when not to use it or compare against other publish tools, so it stops short of full when/when-not/alternatives guidance.

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