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

Annotations provide basic safety hints (not read-only, not destructive). The description adds critical behavioral context: business permissions, FREE business restriction, mandatory access check before use. However, it does not describe return values or error handling.

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?

Description is a single paragraph of 4 sentences, front-loading purpose then preconditions. It is concise but could benefit from structured formatting like bullet points for prerequisites.

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?

Given 30 parameters with 0% schema coverage and no output schema, the description is incomplete. It fails to specify which fields are updatable, validation rules, or what the response contains. The tool's complexity demands more detailed parameter explanations.

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%, so description must explain parameters. It only says 'editable challenge product fields' without detailing any of the 30 parameters. The agent must infer from parameter names, which is insufficient.

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 clearly states the verb 'Update' and the resource 'editable challenge product fields'. It specifies the context 'for a community managed by the authenticated Nas.com user', distinguishing it from other update tools like update_challenge_checkpoint_dates.

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?

Explicitly provides when to use (after permission checks) and when not (FREE businesses cannot use, blocked access). Provides actionable steps: call check_business_tool_access, show grace-period warning, and never proceed when blocked.

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