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

Annotations already declare read-only, idempotent, non-destructive, closed-world behavior, so the safety profile is covered. The description contributes the useful facts that results are ordered oldest first and that follower data is embedded per copier, but says nothing about pagination limits or result size.

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?

A single short sentence with no wasted words and the key facts (scope, embedded followers, ordering) front-loaded. It is efficient, though the fragment style leaves the operation type implicit.

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 simple, fully documented, read-only list tool with annotations, this is adequate but thin: it does not describe pagination behavior or what a copier-with-followers record contains. No output schema exists, so a brief note on return shape would have helped.

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?

The schema documents both parameters fully (limit range/default and cursor semantics) at 100% coverage, so the baseline is 3. The description adds nothing about pagination or parameter meaning beyond what the schema already states.

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 says what is returned ('your copiers with their followers') and the ordering ('oldest first'), but it never uses a verb like list/retrieve and largely restates the tool name. It hints at a distinction from list_followers by noting followers are embedded in copiers, but does not state that distinction explicitly.

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 guidance on when to use this versus siblings such as get_copier, list_followers, or list_copy_events, and no mention of prerequisites or exclusions. The agent must infer usage entirely from the tool name.

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