# Microgram: naranjo-causality-surface

`station__algovigilance__microgram-naranjo-causality-surface` · native (always callable) · domain `algovigilance` · pv-relevance `pv-core`

Naranjo Adverse Drug Reaction probability scale. Ten yes/no/unknown questions producing definite/probable/possible/doubtful causality.

## Agent metadata

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

## Input schema

- `q1_previous_reports` *number* — Input q1_previous_reports
- `q2_after_drug` *number* — Input q2_after_drug
- `q3_improved_on_discontinuation` *number* — Input q3_improved_on_discontinuation
- `q4_reappeared_on_readmin` *number* — Input q4_reappeared_on_readmin
- `q5_alternative_causes` *number* — Input q5_alternative_causes
- `q6_reappeared_with_placebo` *number* — Input q6_reappeared_with_placebo
- `q7_drug_detected_in_blood` *number* — Input q7_drug_detected_in_blood
- `q8_dose_dependent` *number* — Input q8_dose_dependent
- `q9_prior_similar_reaction` *number* — Input q9_prior_similar_reaction
- `q10_confirmed_by_objective` *number* — Input q10_confirmed_by_objective

## Example call

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__algovigilance__microgram-naranjo-causality-surface",
    "arguments": {}
  }
}
```

## Related

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