set_sound_mix_class_override

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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, so safety is partly covered. The description adds meaningful context beyond that: it discloses the load-modify-save sequence, that it upserts into the SoundClassEffects array, and that persisted 'saved' state occurs, which explains why it is destructive yet idempotent.

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?

Front-loaded with the core action and mechanism in two tight sentences, followed by a return signature. The return block is somewhat long but every field earns its place and there is no filler prose.

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?

With no output schema, the description compensates by spelling out the full return shape. Combined with the mutation mechanism, an agent has enough to call it correctly; only explicit usage routing is absent.

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 coverage is 100%, so all five parameters (including default values for volume/pitch adjusters and apply_to_children) are already documented in the schema. The description only echoes the same field names in its return listing and adds no new syntax or meaning, so the baseline 3 applies.

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?

States a specific verb+resource ('Sets a sound class adjuster override in a USoundMix') and further names the exact structure it mutates (FSoundClassAdjuster in the SoundClassEffects array). That precision separates it from siblings like set_sound_class_properties or create_sound_mix, though it never names any sibling for contrast.

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?

There is no explicit when-to-use or when-not-to-use guidance. The mechanics ('adds or updates') imply this is for creating/editing a mix-level override, which is adequate implied usage, but the agent gets no routing aid against adjacent sound-mix/class tools.

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