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Cito API

valorant_matches

Read-only

Query Valorant matches: recent results, upcoming fixtures, live matches, or filtered match history by event, team, date range, or search query.

When to use:

  • Recent Valorant match results ("who won yesterday?")

  • Filtering Valorant matches by event, team, date, or date range (from/to)

  • Searching Valorant matchups by team or event name

Prefer over: call_api for /valorant/matches or /valorant/matches/results. For live-only across all games use live_matches; for one match's full map/player stats use match_summary or match_details.

Parallel-safe: yes. Upstream cost: 1.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "valorant_matches"
  }
}

Input Schema

NameRequiredDescriptionDefault
qNoCase-insensitive search across team and event names.
toNoEnd date inclusive (YYYY-MM-DD).
dateNoExact match date (YYYY-MM-DD).
fromNoStart date inclusive (YYYY-MM-DD).
teamNoFilter by team id (e.g. "val-team-2") or team name.
eventNoFilter by event id (e.g. "val-event-2004") or event name.
limitNoMax items to return (default 20, max 50). Example: 20.
offsetNoPagination offset (default 0).
statusNoMatch status filter (default completed).completed
includeGamesNoInclude per-map games/player stats in each match row (default false for faster list responses).

Output Schema

NameRequiredDescriptionDefault
okYestrue if the tool succeeded
dataNoResult payload when ok is true; null on error
metaYes
errorNo
partialNo
paginationNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Added

TDQS

A4.5/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true, openWorldHint=true, destructiveHint=false, so the safety profile is known. The description adds operational traits not in annotations: 'Parallel-safe: yes' and 'Upstream cost: 1', which help orchestration decisions. It stops short of describing pagination behavior or result ordering, so not a full 5.

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?

Front-loaded purpose sentence followed by compact bullets for when-to-use, routing, and operational metadata. Every line carries distinct information with no repetition of the schema.

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

Completeness5/5

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

An output schema exists and annotations cover safety, so the description needn't explain return values. Given 10 optional parameters, it supplies the usage framing, sibling routing, and concurrency/cost signals an agent needs to call it correctly.

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?

Schema description coverage is 100% and all 10 parameters including enums and defaults are documented in the schema. The description only restates the filter dimensions (event, team, date range, search query) without adding format or interaction semantics, so 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?

States a specific verb and resource ("Query Valorant matches") and enumerates the distinct modes: recent results, upcoming fixtures, live matches, and filtered history. This is clearly distinguishable from siblings like live_matches and match_details without opening the schema.

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

Usage Guidelines5/5

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

Provides an explicit 'When to use' list with concrete question archetypes, plus a 'Prefer over' directive naming call_api and its routes, and routes one-match-stats needs to match_summary/match_details. Both when-to-use and alternatives are covered, leaving little to inference.

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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