I recently built an AI Goal Planner Agent that integrates seamlessly with Telex (telex.im) — a platform similar to Slack where you can chat with intelligent agents that perform specific tasks for you.
For this project (Stage 3 of the HNG Internship Backend Track), I used Mastra, a framework that simplifies building and exposing AI workflows via APIs.
The idea was simple but useful — create an agent that plans your week automatically.
When you type something like:
plan my week: build project, submit report, study for 2 hours daily
The agent breaks it down into a daily actionable plan and returns it right inside Telex
Tech Stack
Mastra — for building the AI workflow
Express.js — for exposing the /a2a endpoint
Vercel — for hosting the API
Telex — for chatting with the agent
⚙️ How It Works
The Telex platform sends user messages to your public API endpoint (via /a2a/agent/plannerAgent).
Your Mastra agent receives the prompt, uses AI logic to generate a structured plan, and returns a text response.
Telex displays the response right in your chat.
💡 Example Output
Your weekly plan:
Monday – Plan your approach for “build project”
Tuesday – Start implementation
Wednesday – Continue progress
Thursday – Submit report
Friday – Review and refine
Saturday – Study for 2 hours
Sunday – Reflect & rest
This shows how AI agents + messaging platforms can simplify productivity, even with small, well-scoped APIs.
You can host yours easily on Vercel and integrate with Telex via their A2A (Agent-to-Agent) protocol.
Follow me for updates as I explore more Telex + Mastra AI agent ideas 🚀
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