dcs-srs

dcs-srs Skill

Invoke DCS SRS (Simple Radio Standalone) service gRPC methods for radio transmissions and client management.

Prerequisites

• AppHost started: aspire start or aspire start --isolated
• dcs-grpc-wrapper resource is live and healthy
• .withMcpServer({ path: "/mcp/dcs-grpc", endpointName: "dcs-grpc" }) is configured in apphost.ts
• SRS server running and connected
• Proper frequency and coalition settings for SRS server configuration

Available Methods

Radio Transmission

• Transmit - Synthesize text-to-speech and transmit on SRS frequency

Client Management

• GetClients - Get list of SRS clients and their active frequencies

Quick Examples

CRITICAL — Tool Invocation: NEVER use aspire mcp call in the terminal to invoke gRPC methods. Always use the MCP tool directly:

1. Load deferred tool: tool_search_tool_regex with pattern mcp_dcs-grpc-wrap
2. Call: mcp_dcs-grpc-wrap_call_grpc_method with the JSON payload below

Transmit radio message (English):

{"method": "Transmit", "payload": {"ssml": "Check six position, bandits at twelve o clock", "plaintext": "Check six position, bandits at twelve o clock", "frequency": 251000000, "coalition": "COALITION_BLUE", "position": {"lat": 40.0, "lon": 0.0, "alt": 5000}}}

Transmit with SSML (prosody control):

{"method": "Transmit", "payload": {"ssml": "<prosody rate=\"0.9\">Roger, low fuel state</prosody>", "plaintext": "Roger, low fuel state", "frequency": 251000000, "coalition": "COALITION_BLUE", "position": {"lat": 40.0, "lon": 0.0, "alt": 5000}}}

Async transmission (non-blocking):

{"method": "Transmit", "payload": {"ssml": "Contact visual", "frequency": 251000000, "async": true, "coalition": "COALITION_BLUE", "position": {"lat": 40.0, "lon": 0.0, "alt": 5000}}}

Get SRS clients:

{"method": "GetClients", "payload": {}}

Notes

• Blocking vs Async: By default, Transmit blocks until transmission completes. Use async:true for non-blocking calls
• Frequencies: Use Hz format (e.g., 251000000 for 251.00 MHz)
• SSML Support: Use SSML tags for prosody control (rate, pitch, volume, etc.)
• Position: Required for line-of-sight and distance calculations
• Coalition: Only Blue and Red supported; others fallback to Spectator

References

• SRS Documentation
• SSML Tags Documentation
• Proto File