Render Template

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

Annotations already declare readOnlyHint=true and idempotentHint=true, so the description does not need to restate safety. It adds the Jinja2 rendering detail and typical use case, but does not disclose potential failure modes (e.g., undefined variables) or clarify that no device interaction occurs. Annotations lower the burden, so this is adequate.

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 two sentences, leads with the action, and is appropriately sized. The second sentence provides useful context but is somewhat redundant with the purpose; still, it earns its place without unnecessary verbosity.

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 simple tool with 2 parameters, full schema coverage, read-only annotations, and an output schema, the description adequately covers purpose and typical use. It could explicitly note that it only renders text and does not execute commands on devices, but the annotations and schema cover most operational essentials.

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%, with both parameters already documented. The description adds only minimal context ('provided variables') and no additional semantics about formats, defaults, or behaviors beyond what the schema provides.

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 a specific verb ('render') and resource ('Jinja2 template'), and explains the purpose of combining templates with variables. However, it does not explicitly differentiate from sibling tools like run_command_template, which may also involve template rendering, 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?

The description gives general context about network automation use cases but offers no explicit guidance on when to use this tool versus alternatives such as run_command_template or apply_device_configuration. There are no exclusions or conditions provided.

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