list_agentsVALORANT reference data (valorant-api.com) — list playable agents with their roles and abilities. Static game data, keyless. Optionally filter by role.
| Name | Required | Description | Default |
|---|---|---|---|
| role | No | Optional role filter (case-insensitive), e.g. "Duelist", "Controller", "Initiator", "Sentinel". |
Changes observed during successful MCP inspections.
Input schema / examplesAdded value: +[
+ {},
+ {
+ "role": "Duelist"
+ }
+]Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already indicate safe read operation. Description adds key details: static game data, keyless access, and role filter option. No contradictions.
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?
Two sentences, no redundant words, effectively structured.
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?
Covers the essential purpose and filter option. Lacks details on output format, but given no output schema and simple list, it's sufficient.
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 has full description for the single parameter. Description adds minimal new info beyond repeating 'optionally filter by role'. Baseline 3 is appropriate.
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?
Clearly states it lists playable agents from VALORANT API, including roles and abilities. Differentiates from siblings like get_agent and list_maps.
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?
Provides context about static, keyless data and optional role filter. Implies use for retrieving all agents, but does not explicitly compare with get_agent.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.