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

Annotations only say it is a non-read-only, open-world, non-destructive write. The description adds real behavioral context: it reaches other people, requires confirming with the user before each call (with a configurable default-on confirmation), and needs a Cotlet API key with access to this app. It stops short of disclosing reversibility or rate limits.

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 core idea is front-loaded, but the first two sentences restate the same public/private distinction twice, and the confirmation/API-key notes read as boilerplate appended at the end. It could be tightened without losing information.

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?

For a two-parameter mutation with no output schema and open-world annotations, the description covers the side effects (public exposure, Feed reach), the confirmation requirement, and the auth prerequisite. What an agent needs to call it safely is essentially present.

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% (baseline 3), and the description goes beyond the bare "public or private" enum by explaining what each value does operationally: public exposes the track to followers and search, private limits it to the secret link, and private→public counts as a first release that hits Feeds.

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 and resource (set a track's privacy) and enumerates the two modes with their visibility consequences, which cleanly separates it from siblings like soundcloud_update_track. No sibling is named, so it's clear but not maximally differentiated.

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?

Explains the meaning of each mode and the effect of a public release, so usage is implied. However it never states when to choose this over soundcloud_update_track or when not to use it, and names no alternative.

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