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validate_grammar

Validate llguidance grammar completeness and consistency. Returns validation results with any errors or warnings.

Instructions

Validate llguidance grammar completeness and consistency using llguidance's built-in validator. Returns validation result with any errors or warnings.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
grammarYesllguidance grammar string or path to grammar file (.lark, .grammar)
Behavior3/5

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

No annotations are provided, so description carries full burden. It mentions validation and returning errors/warnings but does not specify side effects, permissions, or read-only nature. Adequate but lacks deeper behavioral context.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two concise sentences with front-loaded action. No unnecessary words or redundancy.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given low complexity (single param, no output schema), the description covers the core functionality and output. Could mention output format or version dependencies, but not essential.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Only one parameter with 100% schema description coverage. The tool description does not add any meaning beyond the schema's description of 'grammar string or path'. Baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool validates llguidance grammar completeness and consistency using a built-in validator, distinguishing it from sibling tools like get_llguidance_documentation and run_batch_validation_tests.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for validating a single grammar but does not explicitly state when to use it over siblings or when not to use it. Sibling tool names provide context but no explicit guidance.

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

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