Ship agents
that think.

import { agent, tool, memory } from "@lumen/sdk";
import { z } from "zod";
 
const lookupOrder = tool({
  name: "crm.lookup_order",
  input: z.object({ orderId: z.string() }),
  run: ({ orderId }) => crm.orders.get(orderId),
});
 
export default agent({
  name: "support-agent",
  model: "lumen/frontier-1",
  memory: memory.semantic({ ttl: "30d" }),
  tools: [lookupOrder, "mcp://zendesk"],
  guardrails: { pii: "redact", budget: "$0.04/run" },
  async run(ctx, msg) {
    const plan = await ctx.plan(msg);
    return ctx.stream(plan);
  },
});

from lumen import agent, tool, memory
 
@tool("crm.lookup_order")
def lookup_order(order_id: str):
    return crm.orders.get(order_id)
 
@agent(
    model="lumen/frontier-1",
    memory=memory.semantic(ttl="30d"),
    tools=[lookup_order, "mcp://zendesk"],
    guardrails={"pii": "redact", "budget": "$0.04/run"},
)
async def support(ctx, msg):
    plan = await ctx.plan(msg)
    return ctx.stream(plan)

# evals/support.yaml
suite: support-regression
agent: support-agent@latest
dataset: s3://acme/tickets/2026-q3.jsonl
 
scorers:
  - type: llm-judge
    rubric: "Resolves the issue without escalation"
  - type: latency
    p95: 1200ms
 
gate:
  pass_rate: ">= 0.97"
  on_fail: block-deploy