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

No annotations are supplied, so the description carries the full behavioral burden, yet it discloses nothing about permissions, whether the slug must be globally unique or what happens on collision, or whether creation is reversible. For a mutation tool with zero annotation coverage, this is a substantial gap; only the word 'reusable' hints at intended semantics.

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 efficient sentence with the action front-loaded and no filler. It is concise to the point of under-specification, but nothing in it is wasted.

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?

This is a create/mutation tool with no annotations and no output schema, so the description should explain uniqueness handling, required permissions, and what is returned (e.g., the created template or its id). None of that is present, leaving the agent underprepared to call it correctly in edge cases.

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 name, slug, and content are already documented, and the baseline of 3 applies. The description adds no format detail (e.g., slug character rules, HTML constraints) beyond what the schema states.

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 states a specific verb and resource ('Create a new reusable HTML template'), which is unambiguous for an agent. It does not differentiate from siblings like update_template (modify existing) or generate_from_template (render output), so it falls 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?

There is no when-to-use guidance, no mention of prerequisites, and no reference to alternatives such as update_template or generate_from_template. The agent must infer from the name alone that this creates rather than modifies.

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