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

The description carries far more than the annotations: no private access granted, 50-base cap, updates reflect only the latest published version with no version history, same-version republication is a no-op, each read checks current publication, and unfollowing clears notices. This is exactly the extra behavioral context an agent needs. Nothing here contradicts the destructive/idempotent hints.

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?

Purpose is front-loaded and each sentence conveys a distinct behavioral fact, but the block is dense with edge-case detail (caching, notifications, republication) that could be trimmed or grouped. Efficient but on the heavy side.

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 single-parameter mutation with no output schema, the description covers prerequisites, limits, update semantics, unfollow behavior, and response caching. An agent has everything it needs to invoke this correctly.

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 100% with base_id fully documented as 64 lowercase hex characters. The description adds no additional meaning about the parameter, so the schema does the heavy lifting and baseline 3 applies.

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?

Opens with a specific verb + resource ('Follow a hosted public base for future updates'), so the action and target are unambiguous. It does not explicitly differentiate from adjacent concepts like saving favorites or reading followed_base_updates, so it falls short of a 5.

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 a prerequisite ('Requires a personal account or personal API key') and mentions unfollow behavior, but never states when to choose this over alternatives (e.g., favoriting, listing followed bases). Usage is implied rather than directed.

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