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Production agent in TypeScript

Build an agent with tools, memory and workflows you can deploy.

Starter prompt

Using Mastra, implement the agent in agent-plan.md with typed tools, a workflow with a human-approval step before any write action, and Langfuse tracing. Add the eval cases and a CI script.

Config

agent-plan.md

Agent: <name>
Tools: <3-5 tools>
Memory: per-user thread
Workflow: plan -> act -> verify -> report
Evals: 25 cases in evals/

Setup steps

  1. Write the plan.
  2. Build tools first, then the workflow.
  3. Add evals before adding features.

Why this works

One TypeScript stack for agents, workflows and evals.

Watch out

Pick LangGraph instead if your team is Python-first.

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