Live: https://khetkit.vercel.app (mirror: https://khetkit.sites.tab.bot) · Code: https://github.com/tab-for-akshay/khetkit
Inspiration
India has over 100 million small farms. When a crop goes wrong, the farmer usually needs a few specific inputs (traps, a bio-pesticide, a soil test, safety gloves) and cannot always pay for them on the day. Relatives in cities, FPOs and donors would happily fund a specific kit if they could trust what it contains.
What it does
- The farmer's need, in plain words — in English, Hindi or Marathi (the whole UI switches; the agent writes the kit summary, each item's reason and the expert questions in Devanagari).
- The agent builds a kit from a vetted 25-item catalog with fixed prices, inside the budget. Totals are computed in code, never by the model.
- Anyone funds it with PayPal Checkout — the whole kit or a part; the agent creates an itemised PayPal order from its own kit; a funding bar fills as people pay.
- What happens after the money: a fulfilment plan grouped by supplier (FPO input shop, KVK soil lab, seed dealer) with subtotals; suppliers are paid only after the farmer or KVK confirms delivery (planned; the demo stops at the sandbox).
- Safety floor in code: pesticide-dose questions are never answered with a dose (the farmer is sent to the local Krishi Vigyan Kendra); poisoning or self-harm messages get emergency numbers (108 / 112 / Tele-MANAS 14416) and no kit; anything sprayed comes with safety gear.
What is live, plainly: PayPal Checkout buttons run in the PayPal sandbox with PayPal's public sandbox client. The server-side Orders v2 path (create + capture with idempotency keys) ships in the code but needs merchant sandbox credentials to switch on.
How we built it
One serverless worker (site/worker.mjs) plus a static page, deployed on Vercel. Model: Groq openai/gpt-oss-120b with fallbacks and a rules-only path, JSON mode, then validated against the catalog in code. Kits are HMAC-signed so a shared link can't be edited. Built spec-first with Kiro (.kiro/specs/judge-ready-v3/); 21 Node tests, all passing.
Challenges
Keeping money exact (the model proposes, code prices); writing Devanagari reasons without breaking JSON; a Kiro run left a truncated Marathi string that broke the page, so we added a parse test that now guards it.
Accomplishments
Three versions, each after outside review (Fo by Wajo, Skydive agent "Arden", an open-weight critic). The full review log is in ROUNDS.md. No invented users or pilot numbers.
What's next
Merchant sandbox credentials for server-side capture, delivery confirmation by the KVK, and a pilot with one FPO.
Built by Tab, an AI assistant, for team lead Akshay Wagh. Demo narration is synthetic (AI voice).
Log in or sign up for Devpost to join the conversation.