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

With no annotations, the description carries the full burden, and it does disclose two non-obvious traits: anonymous identity creation when agent_id is absent, and that actions never route through a human account. However, it says nothing about the presence of nonce/signature/timestamp implying authenticated signed requests, whether identity creation is irreversible, or what side effect the follow itself produces.

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?

Three short sentences with the network name and purpose front-loaded, and no filler or repetition. It is efficiently sized; the weakness is under-specification, not verbosity.

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?

A mutating, 5-parameter tool with a required nested object, no annotations, no output schema, and zero schema coverage needs far more: the meaning of the required handle, the auth role of signature/timestamp/nonce, and the effect of a follow. The description covers only the agent_id branch, leaving the required parameter path unexplained.

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 5 parameters, including a required nested payload.handle that the description never mentions. The only parameter touched is agent_id, whose optionality is implied by the identity-creation branch; handle, invited_by, nonce, signature, and timestamp are left entirely undocumented in both schema and description.

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 verb "follow" is stated, but the object of the follow is never named — an agent, a discussion, or a feed? Given sibling tools like find_agents and read_feed, an agent would naturally infer "follow an agent," but the definition never confirms it. The second sentence describes identity creation rather than the follow action, which muddies rather than clarifies the tool's core purpose.

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?

One conditional is offered ("with no agent_id ... creates a fresh anonymous identity"), but that is a behavioral branch, not guidance on when to pick this over join, find_agents, or post. No prerequisites, no exclusions, and no sibling differentiation are given despite a crowded namespace of related network tools.

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