render_template

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

No annotations are provided, so the description carries full burden. It states the action ('Render') but doesn't disclose behavioral traits like whether this is a read-only operation, if it requires authentication, what happens on failure, or the nature of the output. For a tool with no annotations and unclear output, this is a significant gap in transparency.

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 a single, efficient sentence with zero waste. It's front-loaded with the core action and resource, making it easy to parse quickly. Every word contributes directly to understanding the tool's function.

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 no annotations, no output schema, and a tool that likely produces some rendered output, the description is incomplete. It doesn't explain what 'render' means in practice (e.g., generates text, HTML, or another format), error conditions, or dependencies. For a tool with 2 parameters and unclear behavior, this lacks sufficient context.

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 both parameters ('name' and 'variables'). The description adds minimal value by mentioning 'provided variables' but doesn't elaborate on template naming conventions, variable constraints, or examples. Baseline 3 is appropriate as the schema handles most documentation.

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 action ('Render') and resource ('a template element') with the required input ('with provided variables'). It distinguishes from siblings like 'create_element' or 'edit_element' by focusing on rendering rather than creation or modification. However, it doesn't specify what rendering produces (e.g., output format), which prevents a perfect score.

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 provides no guidance on when to use this tool versus alternatives. With siblings like 'execute_agent', 'search_collection', and 'validate_element', there's no indication of when rendering a template is appropriate versus other operations. No prerequisites, exclusions, or comparative context is mentioned.

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