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

Describes the created chain (Revamp EQ → Compressor → Reverb → Delay) and mentions return values. However, does not disclose whether existing effects are replaced or added, nor prerequisites (e.g., unit must exist). No annotations provided to compensate.

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?

Well-structured: summary, parameter descriptions, examples. Every sentence adds value without fluff.

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?

Explains the chain, parameters, outputs, and provides examples. Could address edge cases (e.g., existing effects), but overall complete for a complex tool.

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?

Explains each parameter (unit_index, style with detailed descriptions, reverb_amount, delay_amount) beyond the schema, which has no descriptions. Good coverage for 0% schema description coverage.

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 tool adds a ready-made instrument processing chain (EQ, Compressor, Reverb, optional Delay) for melodic/harmonic instruments. It distinguishes from siblings like add_effect and set_effect_parameter by noting one call replaces 3-4 individual calls.

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 (universal chain for melodic/harmonic instruments) and style guidance, but lacks explicit when-not-to-use or alternative tools beyond implied replacement of individual effect calls.

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