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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and external-data reach are covered. The phrase 'A page of' adds genuine behavioral context that results are paginated, but nothing is said about rate limits, authentication, or how to advance the cursor. Adequate but thin for an annotation-backed read tool.

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 short, front-loaded sentence with no filler. It is efficient, though arguably under-specified rather than optimally concise.

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?

An output schema exists, so return values need not be explained. Still, a paginated list tool with three undocumented parameters and no usage guidance leaves the agent guessing about identifier format, page size, and cursor usage.

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 0% across three parameters. The description implies 'actor' is an account identifier but does not clarify whether it accepts a handle, DID, or either, and says nothing about limit bounds or cursor semantics. It does not compensate for the coverage gap.

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 resource and directionality: accounts that a Bluesky account follows, which implicitly distinguishes it from the reverse-direction sibling bluesky_followers. However, it never names that sibling or explicitly contrasts the two, so differentiation still requires inference.

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?

There is no when-to-use guidance, no mention of alternatives such as bluesky_followers or bluesky_profile, and no prerequisites. The only hint is the word 'page', which implies pagination but does not tell the agent how to iterate.

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