text stringlengths 0 59.1k |
|---|
id: "length-check", |
type: "agent", |
label: "Response Length", |
}) |
.score(({ payload }) => { |
const length = payload.output?.length ?? 0; |
return { score: length > 50 ? 1 : 0 }; |
}) |
.build(); |
``` |
#### `params` |
Static or dynamic parameters passed to the scorer. |
**Static:** |
```ts |
params: { |
keyword: "refund", |
threshold: 0.8, |
} |
``` |
**Dynamic:** |
```ts |
params: (payload) => ({ |
keyword: extractKeyword(payload.input), |
threshold: 0.8, |
}); |
``` |
Dynamic params are resolved before each scorer invocation. |
#### `sampling` |
Override the global sampling policy for this scorer. |
```ts |
sampling: { type: "ratio", rate: 0.05 } // 5% for this scorer only |
``` |
#### `id` |
Override the scorer's default ID. Useful when using the same scorer multiple times with different params. |
```ts |
scorers: { |
keywordRefund: { |
scorer: keywordScorer, |
id: "keyword-refund", |
params: { keyword: "refund" }, |
}, |
keywordReturn: { |
scorer: keywordScorer, |
id: "keyword-return", |
params: { keyword: "return" }, |
}, |
} |
``` |
#### `onResult` |
Callback invoked after scoring completes. Use for custom logging, alerting, or side effects. |
```ts |
onResult: async (result) => { |
if (result.score !== null && result.score < 0.5) { |
await alertingService.send({ |
message: `Low score: ${result.scorerName} = ${result.score}`, |
}); |
} |
}; |
``` |
## Scorer Context |
Scorers receive an `AgentEvalContext` object with these properties: |
```ts |
interface AgentEvalContext { |
agentId: string; |
agentName: string; |
operationId: string; |
operationType: "generateText" | "streamText" | string; |
input: string | null; // normalized string |
output: string | null; // normalized string |
rawInput: unknown; // original input value |
rawOutput: unknown; // original output value |
messages?: Array<{ |
id: string; |
type: "text" | "tool_call" | "tool_result"; |
role: "user" | "assistant" | "system" | "tool"; |
content: string; |
name?: string; |
arguments?: Record<string, unknown>; |
result?: unknown; |
}>; |
toolCalls?: Array<{ |
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