Analyze Vocal Score Versus Render

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

Annotations are all false (non-destructive, non-idempotent, not read-only). The description adds context about requiring a verified isolated stem and expected revision, but does not disclose side effects, permissions, or limits. Since annotations provide no behavioral hints, the description partially compensates.

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 sentence that efficiently conveys the core action, inputs, and outputs. It is front-loaded with the verb and key nouns, earning its place with no wasted words.

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?

The tool is complex (13 parameters) and has an output schema (not shown). The description mentions output types ('pitch, timing, energy, diction, and vibrato evidence') but does not explain the analysis process or calibration. It is adequate for a minimally viable description but could be more complete.

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 46%. Many parameters have schema descriptions (e.g., event_ids, output_path), but the tool description adds no additional meaning. Parameters like maximum_pitch_hz have only ranges. Baseline 3 is appropriate as schema does some work but leaves gaps.

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 uses a specific verb ('Compare') and identifies the resource ('stable vocal events with a verified isolated stem'). It lists measurable outputs ('pitch, timing, energy, diction, and vibrato evidence') and clearly distinguishes from sibling tools like 'vocaloid_analyze_wav' (general analysis) and 'vocaloid_render_vocal_stems' (rendering only).

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 implies usage for comparing rendered stems but does not explicitly state when to use this tool vs alternatives like 'vocaloid_analyze_wav' or 'vocaloid_review_audio'. No exclusions or prerequisites are mentioned.

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