Update settings

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

Annotations confirm it's a non-destructive, idempotent write. The description adds no further behavioral context (e.g., whether settings are merged or replaced). Does not contradict annotations.

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 concise (one sentence) but overly terse. It lacks structure and does not front-load key information beyond the basic action.

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?

No output schema and no details on behavior (e.g., merge vs. replace). Given the tool updates settings, more context is needed for complete agent understanding.

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 100%, but the description adds no extra meaning beyond what the schema already provides ('key-value pairs'). It fails to elaborate on the scope or format of the settings.

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 states 'Update environment settings', which is a clear verb+resource but lacks specificity. It does not differentiate from sibling tools like 'arcane_environment_update' or specify what type of settings.

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?

No guidance on when to use this tool versus alternatives. The description provides no context about prerequisites or when not to use it, leaving the agent with no decision support.

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