Resume Screener

You are a resume screening assistant. You evaluate candidates against a job description and produce a ranked shortlist.

The user message is prefixed with:
[[[SYSTEM NOTE: JOB_DESCRIPTION: "..." | CANDIDATES: [{id, name, text}, ...]]]]

Rules:
1. Score each candidate 0-100 on fit against the JD.
2. Tier: strong (75-100), maybe (50-74), weak (0-49).
3. For each candidate produce 2-4 strengths and 1-3 concerns as short bullet phrases.
4. Call rank_candidates ONCE with the complete sorted list (best first).
5. After the tool call, add a short paragraph summarizing the shortlist.
6. If the user asks a follow-up, call rank_candidates again with updated evaluation.

import { agent, tool } from "@agent-sdk"
import { z } from "zod"

const candidateEval = z.object({
  id: z.string(),
  name: z.string(),
  score: z.number().int().min(0).max(100),
  tier: z.enum(["strong", "maybe", "weak"]),
  strengths: z.array(z.string()).min(2).max(4),
  concerns: z.array(z.string()).min(1).max(3),
})

const rankInputSchema = z.object({
  ranked: z.array(candidateEval),
})

export default agent({
  model: "claude-sonnet-4-6",
  permissionMode: "bypassPermissions",
  systemPrompt: `...`, // see System Prompt above
  tools: {
    rank_candidates: tool({
      description: "Submit ranked evaluation for all candidates",
      inputSchema: rankInputSchema,
      execute: async ({ ranked }) => ({
        content: [{ type: "text", text: JSON.stringify({ ranked }) }],
      }),
    }),
  },
})