# value-baseline-create

`station__value__value-baseline-create` · external (needs EXECUTION_BACKEND_URL configured) · domain `value` · pv-relevance `non-pv`

Create a baseline for signal detection.

> **Note:** This tool routes through an external execution backend. If `EXECUTION_BACKEND_URL` is unset on the server, calls return JSON-RPC error `-32603 "Tool execution backend not configured"`. Tools with `backend: native` execute in-process and are always callable.

## Agent metadata

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

## Input schema

- `avg_engagement` *number* (required) — Average engagement
- `negative_rate` *number* (required) — Negative sentiment rate
- `positive_rate` *number* (required) — Positive sentiment rate
- `posts_per_hour` *number* (required) — Posts per hour
- `source` *string* (required) — Source name

## Example call

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__value__value-baseline-create",
    "arguments": {
      "avg_engagement": 0,
      "negative_rate": 0,
      "positive_rate": 0,
      "posts_per_hour": 0,
      "source": ""
    }
  }
}
```

## Related

- [/tools](/tools) — all 3062 tools
- [/tools/value__value-baseline-create](/tools/value__value-baseline-create) — HTML page
- [/tools/value__value-baseline-create/json](/tools/value__value-baseline-create/json) — JSON form (agent-friendly)
- [/api/mcp](/api/mcp) — endpoint
- [/AGENTS.md](/AGENTS.md) — agent guide