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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, so the mutation/safety profile is covered structurally. The description adds real value by specifying exactly what changes (posted_at becomes null), but it never clarifies that the content card itself survives — a meaningful gap given the destructiveHint=true warning, which could make an agent fear deletion.

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?

One sentence, front-loaded with the action, with the implementation detail tucked into a parenthetical. Zero 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?

With no output schema and 0% schema description coverage, the description carries the full burden but explains neither parameter and gives no result or error context. For a destructive mutation tool the definition is under-specified relative to its complexity.

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 0% and neither of the two parameters (brandId, contentId) is explained anywhere. The description mentions 'a content card' but never ties contentId to it or says what brandId is for, leaving the agent to guess at required scoping.

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 (clear/unschedule) and resource (a content card's planned calendar date), and even names the underlying mechanic (posted_at set to null). It does not explicitly contrast with the sibling schedule_content, which is the obvious inverse operation an agent would need to disambiguate against.

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 guidance on when to use this versus schedule_content or update_content, nor any preconditions (e.g. whether the card must currently be scheduled). The relationship is left entirely to inference from sibling names.

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