online_configure_default_subsystem

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

There are no annotations, so the description carries the full burden of behavioral disclosure. It clearly implies a project configuration mutation, but it does not disclose side effects, persistence, permissions, or whether existing settings are overwritten. The example illustrates a call but does not describe behavior beyond the basic action.

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 short and front-loaded with the core purpose, followed by a KB reference and a concrete example. Every line earns its place and there is no filler.

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 mutation tool with three parameters, no annotations, and zero schema-level descriptions, the description is not complete enough for reliable invocation. The output schema may cover return values, but input semantics and operational side effects remain under-specified; the KB link only partially compensates.

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 the description must compensate, but it only echoes two parameter names in the example and says nothing about 'enable_online_subsystem'. Parameter names are somewhat self-explanatory, but accepted values, relationships, and defaults are not clarified.

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 opening sentence states a specific verb and resource: set the default Online Subsystem service in project config. It is clear and actionable, but it does not differentiate itself from sibling config tools like online_configure_eos_sessions or online_create_eos_artifact_config.

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 no explicit when-to-use guidance or exclusions relative to alternative online configuration tools. The KB link and example imply usage, but the agent is not told when this tool should be preferred over sibling tools, nor what prerequisites might apply.

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