preferences-set_brain_case

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

Discloses behavioral impact (SMS capture, semantic search, use by meta-quick_capture), but no annotations are provided, so the description carries full burden. Lacks details on persistence, overriding behavior, or required permissions.

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?

Two sentences with no extraneous information. First sentence states core purpose, second provides behavioral context. Efficient and well-structured.

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 no output schema and one parameter, the description covers essential functionality and relationships. It could mention clearing behavior explicitly, but the schema handles that. Overall sufficient for understanding the tool's role.

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 100%, so baseline is 3. The tool description adds minor context about meta-quick_capture but does not significantly enhance parameter understanding beyond the schema's already clear explanation.

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?

Description clearly states verb (sets/clears) and resource (brain case). It distinguishes itself from sibling preferences tools by specifying the action and referencing meta-quick_capture, making its unique function evident.

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?

Provides context on when to use (for SMS capture and quick note capture) and what the effect is, but lacks explicit mention of when not to use or direct alternatives. The context is clear enough for an AI agent to infer appropriate usage.

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