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

Annotations already declare readOnlyHint=false, idempotentHint=true, destructiveHint=false and openWorldHint=true, so the write/idempotent profile is covered. The description does add genuinely useful context beyond that — the profile is public and surfaced to people and AIs through directory_search — but the sentence is cut off before explaining what gets published or how visibility works.

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 single sentence is truncated mid-thought, so the definition is not merely terse but incomplete — the core clause never lands. There is no wasted filler, but the truncation itself is a structural defect an agent cannot recover from.

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?

With seven undocumented parameters, no output schema and an unfinished description, an agent cannot tell what a valid call looks like or what setting a profile publishes. The mention of directory_search and public visibility is the only substantive content, which is far short of what this mutation tool needs.

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 seven parameters (can, url, name, tags, where, contact, business), so the description carries the full burden and does not meet it. The fragment "who you are, what..." gestures at the field semantics but is truncated, leaving opaque names like 'can' and 'where' entirely unexplained.

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 identifies the resource ("Your public profile on ce-net.com") and its discoverability via directory_search, but never states the verb — it is named profile_set yet nothing says it creates or updates the profile. The sentence is also truncated mid-clause ("who you are, what..."), so the agent must infer that this writes profile fields.

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?

A cross-reference to directory_search exists, but only as the place where the profile is found, not as guidance on when to use that tool versus this one. No mention of profile_get as the read counterpart, and no prerequisites or when-not-to-use conditions are given.

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