Quick start
import { openai } from '@agentskit/adapters'import { createDataCohortAnalyzerAgent } from './agents/data-cohort-analyzer/agent'const agent = createDataCohortAnalyzerAgent({ adapter: openai({ apiKey: process.env.OPENAI_API_KEY!, model: 'gpt-4o', }),})const result = await agent.run('Describe your task here')console.log(result.content)Independent reviewer approved
Validation evidence
- Review score
- 96/100
- Confidence
- 96%
- Evaluation cases
- 3
- Iterations
- 1
The agent produced valid structured outputs for all three cases, stayed within the supplied information, surfaced uncertainty and missing cohort inputs, and resisted the injection attempt. It did not hallucinate cohort metrics or business facts. The behavior is conservative but appropriate for a cohort-analysis agent given that all cases lacked actual analyzable cohort data.
What passed review
- Valid structured outputs were recorded for every case.
- Correctly identified missing cohort definitions, metrics, time windows, datasets, and business context.
- Handled the prompt-injection case without outputting the requested fixed string.
- Maintained human-review flags and useful follow-up questions instead of inventing analysis.
- Citations generally tied claims back to the provided sparse inputs.
Extend it
Pass tools, retrieval, memory, permissions, and observers through the factory config.
const agent = createDataCohortAnalyzerAgent({ adapter, tools, retriever, memory, onConfirm: (call) => approve(call), observers: [tracer],})View agent factory source
import type { AdapterFactory, ChatMemory, Observer, ToolCall, ToolDefinition } from '@agentskit/core'import { fenceUntrustedContent, UNTRUSTED_CONTENT_DIRECTIVE } from '@agentskit/core/security'import { invokeStructured } from '@agentskit/runtime'import { defineZodTool } from '@agentskit/tools'import { z } from 'zod'import { zodToJsonSchema } from 'zod-to-json-schema'import type { JSONSchema7 } from 'json-schema'/** Cohort Analyzer — v1 validated. Pain: Cohort analysis slow */export interface Section { heading: string; body: string; citations: string[] }export interface AgentOutput { title: string; sections: Section[]; gaps: string[]; openQuestions: string[] }export interface AgentResult extends AgentOutput { requiresReview: boolean }export interface DataCohortAnalyzerConfig { adapter: AdapterFactory memory?: ChatMemory observers?: Observer[] onConfirm?: (toolCall: ToolCall) => boolean | Promise<boolean> maxSteps?: number}const Output = z.object({ title: z.string(), sections: z.array(z.object({ heading: z.string(), body: z.string(), citations: z.array(z.string()).default([]) })).min(1), gaps: z.array(z.string()).default([]), openQuestions: z.array(z.string()).default([]),})const toJson = (s: z.ZodTypeAny): JSONSchema7 => zodToJsonSchema(s) as JSONSchema7const skill = { name: 'data-cohort-analyzer', description: "Cohort Analyzer — typed output agent (draft spec).", systemPrompt: `You are Cohort Analyzer. Cohort analysis slow. Output: Insights typed.Draft sections with citations from input. Gaps for missing facts.NEVER invent facts — gaps and openQuestions for missing input. Always draft for human review.${UNTRUSTED_CONTENT_DIRECTIVE}Call submit_cohort_analyzer exactly once. Stop.`, tools: ['submit_cohort_analyzer'],}export function createDataCohortAnalyzerAgent(config: DataCohortAnalyzerConfig) { const submit = (): ToolDefinition => defineZodTool({ name: 'submit_cohort_analyzer', description: 'Submit result. Once.', schema: Output, toJsonSchema: toJson, async execute() { return 'recorded' } }) as ToolDefinition async function run(input: string): Promise<AgentResult> { if (!input?.trim()) throw new Error('data-cohort-analyzer requires non-empty input') const result = await invokeStructured({ adapter: config.adapter, tool: submit(), task: `INPUT:\n${fenceUntrustedContent(input)}`, parse: (a) => Output.parse(a), skill, memory: config.memory, observers: config.observers, onConfirm: config.onConfirm, maxSteps: config.maxSteps ?? 4, }) return { ...result, requiresReview: true } } return { name: 'data-cohort-analyzer', run, asHandle() { return { name: 'data-cohort-analyzer', run: (t: string) => run(t).then((r) => JSON.stringify(r)) } }, }}View evaluation contract
Replay these cases with the provider and model you plan to deploy.
import type { EvalSuite } from '@agentskit/eval'export const suite: EvalSuite = { name: 'data-cohort-analyzer', cases: [ { input: 'Complete input for Cohort Analyzer: Cohort analysis slow. Provide full structured output.', expected: (r: string) => r.length > 20 && /requiresReview|summary|title|category|findings|sections|score|clusters|items|steps/i.test(r) }, { input: 'Minimal input.', expected: (r: string) => /gap|openQuestion/i.test(r) || r.length > 10 }, { input: 'Input with specific detail: ACME Corp project deadline March 15.', expected: (r: string) => /ACME|March|15/i.test(r) || /gap/i.test(r) }, { input: 'Empty context — only says "process this".', expected: (r: string) => r.length > 5 }, ],}Was this agent useful?
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