# Microgram: comms-security-gate

`station__algovigilance__microgram-comms-security-gate` · native (always callable) · domain `algovigilance` · pv-relevance `pv-core`

Validates communication security posture before transmitting. Gates on mTLS status, firmware signature, replay protection, and encryption. Blocks transmission if security requirements unmet for the link type.

## Agent metadata

- `idempotent`: true
- `read_only`: true
- `expected_latency_ms`: unknown (not yet contract-tested)
- `cost_tokens_estimate`: unknown

## Input schema

- `link_type` *string* (required) — Input variable link_type
- `mtls_active` *boolean* — Whether mTLS handshake is established
- `firmware_signed` *boolean* — Whether modem/radio firmware signature verified at boot
- `replay_nonce_valid` *boolean* — Whether replay protection nonce counter is current
- `certificate_pinned` *boolean* — Whether TLS certificate is pinned to known CA

## Example call

```json
POST /api/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__algovigilance__microgram-comms-security-gate",
    "arguments": {
      "link_type": ""
    }
  }
}
```

## Related

- [/tools](/tools) — all 7718 tools
- [/tools/algovigilance__microgram-comms-security-gate](/tools/algovigilance__microgram-comms-security-gate) — HTML page
- [/tools/algovigilance__microgram-comms-security-gate/json](/tools/algovigilance__microgram-comms-security-gate/json) — JSON form (agent-friendly)
- [/api/mcp](/api/mcp) — endpoint
- [/AGENTS.md](/AGENTS.md) — agent guide