services_render_template

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

With no annotations provided, the description carries the burden of behavioral disclosure. It correctly indicates that the tool renders a template, which is the core behavior, but omits details such as whether the render accesses current states, has any side effects, or requires specific permissions. The description is adequate but not comprehensive for a tool with no annotation coverage.

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, with the primary action stated first. Every word serves a purpose; there is no redundancy or unnecessary detail. It is appropriately sized for the tool's simplicity.

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?

Given the tool has only one parameter and an output schema exists, the description covers the basic purpose. However, it lacks context on error handling, permissible template constructs, or expected outputs. For a render tool, additional context about the template engine's capabilities could be helpful.

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?

The schema description coverage is 0%, so the description should compensate. It mentions 'template string' but does not explain the expected format, available context variables, or syntax rules beyond the parameter name. The description adds minimal meaning beyond what is already obvious from the parameter name 'template'.

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 the tool renders a Jinja2 template string using the HA template engine, which is a specific verb and resource. It also mentions usefulness for testing before saving, providing context. However, it does not explicitly differentiate from the sibling ws_render_template, which likely serves a similar purpose via a different interface.

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 only hints at usage ('useful for testing templates before saving') but does not explicitly state when to use this tool versus alternatives like ws_render_template, or provide any exclusion criteria. No guidance on prerequisites or scenarios where the tool is not appropriate.

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