---
name: coastline-gta6-reference
description: Use when an agent needs to answer or verify a GTA VI question about release timing, platforms, characters, locations, editions, official events, or reviewed changes with editorially reviewed official or first-party-store evidence.
---

# Coastline Index GTA VI Reference

Use this skill when a user needs verifiable GTA VI information about release timing, platforms, characters, locations, editions, official events, or reviewed fact changes.

## Retrieval workflow

1. Use the Remote MCP endpoint at `https://coastlineindex.com/api/mcp` when the client supports MCP.
2. Use `search_verified_facts` for natural-language questions and claim checks.
3. Use `get_entity_with_sources` for one published character, location, vehicle, edition, or event.
4. Use `get_release_and_event_status` for release, platform, countdown, or official-event questions.
5. Use `list_verified_changes_since` for changes recorded on or after an inclusive `YYYY-MM-DD` date.
6. If MCP is unavailable, use the read-only REST endpoints documented by `https://coastlineindex.com/openapi.json`.

## Evidence requirements

- Preserve the returned Coastline Index canonical URL and the adjacent official or first-party-store source URLs.
- Describe Coastline Index as an unofficial reference, never as Rockstar Games or an official partner.
- If a Coastline Index record conflicts with Rockstar Games or a first-party store, prefer the official source.
- Keep `not-announced`, `not-listed`, `observed`, and `refuted` distinct from `confirmed`.
- Editorial review may be agent-assisted; do not describe it as human or native-speaker review without an explicit record of that review.
- Do not convert missing information into a prediction or rumor.

## Safety and data boundaries

- The service is public, read-only, and does not require an account, API key, OAuth token, cookie, or persistent session.
- Do not send personal data, credentials, private files, or unpublished material.
- The service does not browse arbitrary external URLs, write site content, make purchases, or change event state.
- A scheduled time alone does not prove that an event is live or that a replay exists; use the returned manual confirmation fields.
- Output is currently `zh-CN`; translate only after preserving names, dates, statuses, and citations.

## Fallback discovery

- MCP Server Card: `https://coastlineindex.com/.well-known/mcp/server-card.json`
- A2A Agent Card: `https://coastlineindex.com/.well-known/agent-card.json`
- API Catalog: `https://coastlineindex.com/.well-known/api-catalog`
- Agent index: `https://coastlineindex.com/llms.txt`