mix_masking_recommendations

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the agent knows this is a safe, non-mutating operation. The description adds the behavioral context that the tool works on sample-synchronous stems and produces bounded dynamic remediation, which is useful. However, it does not disclose what the output looks like (though an output schema exists), whether it performs analysis only, or any limitations. With annotations covering the safety profile, a 3 is appropriate – the description adds some value but not rich behavioral context.

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, compact sentence that front-loads the core action ('Recommend') and key constraints ('bounded dynamic', 'sample-synchronous stems'). It is efficient with no wasted words. The title adds a redundant but harmless restatement. It could arguably be slightly more explicit about the output, but for its length it is 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 the tool has an output schema, the description need not explain return values. The annotations cover safety (read-only, idempotent, non-destructive). The description covers the core input requirement (sample-synchronous stems) and the nature of the output (bounded dynamic remediation). The main gap is the lack of guidance on max_seconds semantics and when to prefer this over audio_analyze_masking or mix_reference_recommendations, but for a read-only recommendation tool with an output schema, the description is largely 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 67%: vocal_path and instrumental_path have descriptions ('Absolute synchronized vocal stem path' and 'Absolute synchronized instrumental stem path'), but max_seconds has no description beyond its schema type/default. The description's phrase 'sample-synchronous stems' reinforces the path parameters' meaning, adding a synchronization requirement not fully explicit in the schema. However, it doesn't explain max_seconds semantics (e.g., what happens when null, how it bounds the analysis). The description adds marginal value over the schema but doesn't fully compensate for the max_seconds gap.

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 'Recommend bounded dynamic remediation from sample-synchronous stems' states a specific verb ('recommend'), a resource ('remediation'), and a key constraint ('bounded dynamic', 'sample-synchronous stems'). It distinguishes itself from siblings like mix_reference_recommendations and audio_analyze_masking by focusing on remediation recommendations from synchronized stems, though it doesn't explicitly name those siblings. The title 'Recommend masking remediation' reinforces the purpose, but the description alone is slightly jargon-heavy and could be clearer about what 'remediation' entails.

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: when you have sample-synchronous vocal and instrumental stems and want bounded dynamic remediation recommendations. It does not explicitly state when NOT to use it or name alternatives like audio_analyze_masking or mix_reference_recommendations. The context of sibling tools suggests a mix-analysis workflow, but the description leaves the agent to infer the exact conditions. No exclusions or alternative routing are provided.

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