set_layer_mixmode

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

No annotations are provided, so the description should fully disclose behavior. It only states 'Set value' without mentioning side effects, permissions, rate limits, or what happens on success/failure. For a mutation tool, this is insufficient.

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, front-loaded sentence with no fluff. However, it omits important details, making it incomplete rather than concise. A balance of brevity and completeness would be better.

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 3 required parameters, no parameter descriptions in schema, and sibling tools with similar purposes, the description is too minimal. It fails to differentiate from set_current_layer_mixmode or explain the value parameter. The output schema present does not compensate for the lack of input guidance.

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%, yet the description adds minimal meaning. It mentions 'deck A or B' but does not specify exact values for deck (e.g., 'A' or 'B'), nor does it clarify the meaning of layer or value integers. The parameters remain underdocumented.

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 the action (set value) and the target (specific layer on deck A or B). It distinguishes from the sibling set_current_layer_mixmode by specifying 'specific layer'. However, it does not explicitly mention 'mixmode', relying on the tool name for that context.

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 like set_current_layer_mixmode. The description only implies usage for non-current layers but lacks explicit when-to-use or when-not-to-use instructions.

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