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

Annotations already indicate destructiveHint=true and readOnlyHint=false, so the safety profile is established. However, the description adds no extra behavioral context such as whether publishing is immediate, partial failure handling, or the need for platform authentication. It does not contradict annotations, but also does not supplement them.

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, front-loaded sentence with no filler. It conveys the core action and target in under 15 words, making it efficient and easy to parse.

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 tool with three parameters and no output schema, the description covers the basic purpose but omits important context like whether publishing requires prior platform connections, whether it schedules or immediately posts, and what the return value represents. Annotations fill part of the safety gap, but the description alone is not fully 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 100% (id, team_id, platforms all have clear descriptions). The main description does not add new meaning beyond what the schema already provides, so the baseline of 3 is appropriate.

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's function: 'Publish content directly from your library to one or more platforms.' It uses a specific verb (publish) and identifies the resource (library items) and target (platforms). The phrase 'directly from your library' differentiates it from sibling tools like publish_content, which likely handles ad-hoc content.

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?

No explicit guidance is provided on when to use this tool versus alternatives. There is no mention of exclusions, prerequisites (e.g., needing connected accounts), or comparisons with publish_content, publish_ai, or schedule_content. Usage context is only implied by the word 'library'.

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