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

The description adds behavioral context beyond annotations: it is a write operation that requires permission checks, and it mentions restrictions for FREE businesses. The annotations (readOnlyHint=false, destructiveHint=false) already indicate it is not read-only and not destructive, so the description complements them well. However, it does not state whether changes are reversible or immediate.

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 description is relatively concise for the amount of detail it provides. It front-loads the purpose and follows with critical usage instructions. Every sentence adds value, though it could be slightly shorter without losing information.

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 the lack of parameter descriptions, no output schema, and sparse annotations, the description is only moderately complete. It covers permissions and prerequisites well but leaves parameter semantics and return values unaddressed. The complexity is moderate, so a score of 3 is appropriate.

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?

The schema has 0% description coverage for parameters. The description does not explain the structure of 'tieredPrices' (array of objects with additionalProperties: {}), leaving the agent uncertain about required fields. 'communityId' is clear from its name, but the lack of parameter documentation is a significant gap.

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 it updates membership tiers and prices. It mentions that 'business' and 'community' are interchangeable, but does not differentiate from the sibling tool 'update_community_tiered_prices', which likely performs the same function. The purpose is clear but lacks distinction from a nearly identical sibling.

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?

The description provides explicit usage guidelines: check business permissions, note that FREE businesses cannot use this tool, call 'check_business_tool_access' before collecting inputs, show grace-period warnings and resubscribe links, and never proceed when access is blocked. This clearly instructs when and when not to use the tool.

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