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

With no annotations, the description carries the full burden and does so well: it discloses idempotent behavior ('safe to repeat: a second call answers already_created'), the resulting state (default charter, slug listing, caller as lead), and exact auth requirements (OAuth connector sign-in or API key in the Authorization: Bearer header, never passed as arguments).

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 sentences, front-loaded with the core action and outcome, then idempotency, then the fallback and auth note. Dense but each sentence carries distinct information; the final clause packing both auth methods is slightly heavy but earns its place.

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?

The description covers creation semantics, idempotency, auth, and even the already_created response value, which is important given there is no output schema and no annotations. An agent has everything needed to invoke it correctly and interpret the repeat-call case.

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 100%, so name, slug, and claimCode are already fully documented in the schema, including defaults and patterns. The description reinforces the slug/claim-code origin story but adds no syntax or format detail beyond what the schema provides, so the 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?

States a specific verb and resource ('set up a company workspace from a claim code') and enumerates the outcome: opens the workspace with the default charter, lists it under its slug, and makes the caller lead. The claim-code framing implicitly separates it from generic creation siblings like create_space or open_private_room.

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?

Gives clear triggering context (you received a claim code from Vermarco) and an explicit fallback when you cannot call the API (have the human open the link and tap Create), plus idempotency guidance. It stops short of naming a sibling tool alternative, but the when-to-use path is unambiguous.

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