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geoffbelknap

LimaCharlie MCP

by geoffbelknap

lc_list_yara_sources

List YARA source names for an organization to view and manage detection rules.

Instructions

List YARA source names for an org.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
oidYes
limitNo
Behavior2/5

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

With no annotations, the description carries full burden for behavioral disclosure. It only mentions 'list', implying a read operation, but omits any details about authentication requirements, rate limits, data freshness, or side effects. Minimal transparency.

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

Conciseness2/5

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

The description is extremely short at 7 words, but this brevity comes at the cost of completeness. It front-loads the action but lacks structure or additional details that would help the agent. Overly terse without earning its brevity.

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

Completeness1/5

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

Given the lack of annotations, output schema, and parameter descriptions, the description is woefully incomplete. It provides no information about return format, parameter constraints, or behavior, making it nearly useless for an AI agent to invoke correctly.

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

Parameters1/5

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

Schema description coverage is 0% and the description adds no meaning to the parameters. It does not explain the purpose of 'oid' (likely org ID) or 'limit' (pagination), leaving agents to infer from names alone. This is critical missing context.

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

Purpose4/5

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

The description clearly states the action (list) and the resource (YARA source names) scoped to an org. It is specific enough to distinguish from related tools like lc_list_yara_rules, though it does not elaborate on what YARA sources are.

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 guidance is provided on when to use this tool versus alternatives. The description lacks context about prerequisites, expected input values, or when other tools might be more appropriate.

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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