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parse_condition

Parse Sigma condition expressions into JSON parse trees, returning structured errors on invalid syntax.

Instructions

Parse a Sigma condition expression (e.g. selection and not 1 of filter_*) into a parse-tree as JSON, or return a structured parse error.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
conditionYesA Sigma condition expression, e.g. `selection and not filter`.
Behavior3/5

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

No annotations are provided, so the description must carry the burden. It correctly states the output (parse tree or error), but does not disclose whether the operation is idempotent, side-effect free, or if any authentication is required. For a simple parse operation, this is adequate but not comprehensive.

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?

The description is a single sentence that is concise and front-loaded with the core purpose. No unnecessary words or repetitions.

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 the tool has one simple string parameter and no output schema, the description covers the input, output, and an example. It is missing some details about the structure of the parse tree or error, but these are minor for a tool that returns JSON. Mostly complete.

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

Parameters4/5

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

Schema coverage is 100%, so the baseline is 3. The description adds an example ('e.g. `selection and not filter`') which clarifies the expected format beyond the schema's type definition. This adds value for the agent.

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 verb 'Parse', the resource 'Sigma condition expression', and the output 'parse-tree as JSON' or 'structured parse error'. It includes an example, and the tool is well-differentiated from siblings like parse_rule which handles full rules.

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

Usage Guidelines2/5

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

No explicit guidance on when to use this tool versus alternatives like parse_rule. The description only implies usage for parsing condition expressions, but does not provide context on when it is appropriate or when another tool should be used.

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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