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

It adds substantial behavior beyond the annotations: Microsoft sign-in with blog.write scope, an anonymous sign-in challenge, no filing, a 5-10 minute runtime, tasks-extension polling versus wait_seconds progress return, and idempotent rereads. These operational details are not in the structured annotations and are exactly what an agent needs.

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 dense but each sentence carries operational information, including auth, duration, polling, and return behavior. It is not perfectly front-loaded because it opens with the auth prerequisite rather than the tool's purpose, and the polling sentence is slightly convoluted.

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 complex check with an output schema, annotations, and three parameters, the description covers auth, runtime, polling/wait behavior, idempotency, and return shape. With the output schema handling findings details, nothing critical for correct invocation 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 67%, and the description references Markdown/frontmatter and images but adds little parameter-specific meaning beyond the schema. It does not explain wait_seconds default/max or the name-only image behavior beyond what the schema already documents.

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: run techfabric.com's readiness checks on a post's Markdown with frontmatter. The 'Files nothing' contrast and the return description distinguish it from submit/update siblings, so an agent can identify it as a pre-submission check.

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 gives clear context for use as a readiness check on a draft's Markdown and notes that it files nothing, implying use before submission. However, it never names submit_draft or update_draft as alternatives or states explicit when-not conditions, so sibling routing 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.