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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds a platform-level write model (ChangeRequests carry message/diff/history) and a prompt-injection caution, but these are generic boilerplate rather than behavior specific to this listing call, and no pagination or return-shape behavior is disclosed.

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 important scoping content is front-loaded and the whole thing is short. It loses a point because the status/fields sentences duplicate schema descriptions verbatim and the trailing ChangeRequests/security note is tangential to invoking this specific tool.

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 zero-required-param read tool with full annotation coverage and complete schema descriptions, the definition is adequate: it routes the caller, explains the modifiers, and flags the multi-space prerequisite. The absence of any pagination or result-count guidance is the only real gap.

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% and both status and fields already carry rich enum descriptions, so the description's restatement of the same semantics adds no meaning beyond the schema. With the schema doing the heavy lifting, the baseline of 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?

The resource is clearly named ('Developer-facing Bases') and the GET /api/v1/bases line confirms the read operation, so an agent knows this enumerates Bases. However, the verb is left implicit to the tool name, and the description never explicitly contrasts this list operation with bases_get for a single Base (that contrast lives only in the schema).

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 actionable procedural guidance for multi-space accounts: call auth_verify, ask the user which space, and pass targetSpaceId. It also explains the two mode-modifiers (status=archived, fields=links), though it never states when to prefer a sibling like bases_get or list_archived instead.

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