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

Annotations already declare destructiveHint=true, idempotentHint=false and openWorldHint=true, so the irreversibility and external-effect profile is covered. The description adds genuinely new behavior context: it requires the workspace agent publishing opt-in and a publish:now API key ability, which the agent must verify before calling.

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?

Two compact sentences with the action front-loaded and the prerequisite conditions following. No filler and nothing that could be cut.

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?

An output schema exists so return values need not be described, and the two authorization prerequisites are disclosed. Only minor gaps remain, such as what happens if the opt-in is missing or whether publication can be reversed.

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%, so the description carries the full burden for the single post_id parameter. It only implies the ID refers to an already-existing post; it never states the expected ID format, where to obtain it (list_posts/get_post), or whether the post must be validated first.

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 (publishes) plus resource (an existing post) and qualifies timing with 'immediately', which cleanly separates it from the sibling schedule_post. An agent can identify the operation without opening the schema.

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 word 'immediately' implies the use case of publishing now rather than scheduling, and the opt-in/ability prerequisites give some context. However, no sibling is named and there is no explicit when-not guidance (e.g. use schedule_post if you need a future time).

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