mobileauth_add_token_storage

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only says 'Generate secure token storage', which implies a write/generation action, but it does not explain side effects, required permissions, whether it modifies existing files, or what happens if the Pro feature is not enabled. This is minimal behavioral context for a tool that is likely to mutate a project.

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 a single short imperative phrase that is front-loaded with the core action and includes a compact 'Pro feature' qualifier. There is no filler, redundancy, or irrelevant detail. It loses a point only because its brevity borders on under-specification, though that issue is better captured under contextual completeness.

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 tool with no annotations, no output schema, and two parameters, the description is far too sparse. It does not state what 'generate' produces, whether api_key is required for the generation, what files or configuration are affected, or how the 'Pro feature' restriction affects invocation. This leaves substantial gaps for an agent trying to call the tool correctly.

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 coverage is only 50%: the api_key parameter has no schema description, and the description does not mention either parameter. The directory parameter is only documented as 'Project directory' in the schema, while api_key is entirely left to the agent's imagination. The description adds no meaning beyond what the schema already provides and fails to compensate for the undocumented api_key.

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 uses a specific verb ('Generate') and a resource ('secure token storage'), so it is not a tautology. However, it is vague about what token storage actually involves (e.g., code generation, keychain configuration, file writes) and does not differentiate it from sibling tools like mobileauth_generate_flow or mobileauth_add_biometric. The parenthetical 'Pro feature' signals a licensing constraint but does not clarify the tool's core function.

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 guidance about when to use this tool versus any alternative. The description neither states prerequisites, project context, nor exclusions, and it does not mention the many related mobileauth siblings. An agent would have to infer the appropriate use case solely from the tool name.

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