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

Annotations already declare a non-read-only, non-idempotent, non-destructive, open-world mutation, so the safety profile is covered. The description only adds that the operation can be scheduled rather than immediate; it says nothing about auth requirements, side effects (notifications, newsletter delivery), or whether publishing is reversible.

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?

A single front-loaded sentence with zero waste; the verb+resource leads and the scheduling caveat follows. It is efficiently sized, though very sparse for a publish operation.

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?

There is no output schema, so the description should ideally say what a successful publish returns (URL, article ID) and any preconditions such as whether a draft must exist first. Annotations and the fully described schema carry the rest, leaving this minimally adequate.

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%, so the schema already documents title, body, tags, visibility, schedule_at, and cover image. The description only adds meaning for schedule_at ('or schedule it'), which the schema already explains in more detail, so baseline 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?

States a specific verb+resource ('Publish a new article') and adds the scheduling variant, so the agent knows this creates published content rather than a draft. It does not explicitly differentiate from siblings like create_draft or update_article, which keeps it short of a 5.

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 parenthetical '(or schedule it)' implies usage for the scheduled-publish case, but there is no explicit guidance on when to choose this over create_draft, update_article, or add_to_series. Usage is only inferable from the description.

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