# run-ich-q1a-stability-testing

`station__microgram__run-ich-q1a-stability-testing` · external (needs EXECUTION_BACKEND_URL configured) · domain `microgram` · pv-relevance `pv-core`

ICH Q1A(R2) Stability Testing decision tree. Given product type, storage type, and accelerated study outcome, returns storage conditions, testing frequency, minimum study duration, and shelf life approach. Covers general case, refrigerator, freezer, semi-permeable, and impermeable containers.

> **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

- `product_type` *string* (required) — drug_substance or drug_product
- `storage_type` *string* (required) — general, refrigerator, freezer, below_minus_20, semi_permeable, impermeable
- `long_term_condition` *string* — For general: 25_60 or 30_65. For semi-permeable: 25_40 or 30_35.
- `significant_change_accelerated` *boolean* — Whether significant change was observed at accelerated condition
- `significant_change_timing` *string* — within_3_months or between_3_and_6_months

## Example call

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__microgram__run-ich-q1a-stability-testing",
    "arguments": {
      "product_type": "",
      "storage_type": ""
    }
  }
}
```

## Related

- [/tools](/tools) — all 3062 tools
- [/tools/microgram__run-ich-q1a-stability-testing](/tools/microgram__run-ich-q1a-stability-testing) — HTML page
- [/tools/microgram__run-ich-q1a-stability-testing/json](/tools/microgram__run-ich-q1a-stability-testing/json) — JSON form (agent-friendly)
- [/api/mcp](/api/mcp) — endpoint
- [/AGENTS.md](/AGENTS.md) — agent guide