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

The readOnlyHint annotation already establishes that this is a safe read. Beyond that, the description adds no behavioral context: no pagination, no sorting, no indication of whether results are scoped to the caller's organization, and no note on visibility/permission requirements. It restates the resource rather than disclosing how the tool behaves.

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?

It is a single short sentence with no padding, which is good, but it is a fragment with no verb and no front-loaded indication that it is a list/read operation. Brevity here comes at the cost of informativeness rather than from efficiency.

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 read-only list tool with one required parameter and no output schema, the description should say it returns the organization's plans scoped by organizationId. It never confirms the return shape or the scoping, leaving the caller to guess how the single input affects results.

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% and there is a single required parameter, organizationId, whose meaning (which organization's plans, and how the caller is authorized) is never addressed. The description says 'the gym's' but does not tie that to the organizationId input, so it fails to compensate for the schema 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 is a noun phrase that characterizes the resource (gym-owned membership plans sold via the gym's coaches) but never states the action, so an agent must infer from the name 'list_organization_plans' that it returns a collection. It hints at a domain distinction from list_subscriptions by saying 'gym-owned' and 'through any of the gym's coaches', but does not explicitly contrast with sibling list tools.

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?

There is no when-to-use guidance, no prerequisites, and no mention of alternatives such as list_subscriptions or list_organization_payments. The description only tells the agent what the entity is, leaving the decision to invoke entirely to inference.

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