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Shekhar Kumar

Projects

Open-source work and systems I've built professionally, newest focus first.

Open source · Active

NeatCode

A code graph that answers coding agents' structural questions over MCP instead of making them read whole files.

to index 131k LOC
3.8s
structural queries
<300ms
incremental re-index
0.49s

TypeScript · ts-morph · SQLite · MCP

Work · Shipped

Distributed speech-to-image pipeline

Live narration in, illustrated story panels out, fanned out across a fleet of GPU pods.

scene candidates rendered in parallel
3
GPU instances in production
4
tests
115

Python · FastAPI · Celery · Redis · PostgreSQL · MinIO · ComfyUI · WebSockets · AWS EC2 GPUs

Work · Shipped

Fleet

GitHub and Booking.com rebuilt as environments for agent evaluation and RL.

RL environments · Agent evaluation

Work · Shipped

Generative AI platform

Model routing, tool calling, a custom MCP server, and RAG over vector databases.

response relevance (RAG)
+25%

LangChain · MCP · Vector databases · RAG

Work · Shipped

Ivorie

Backend for a three-sided wedding marketplace: real-time chat, milestone payments, vendor payouts.

users
5k+
messages a day
10k+

NestJS · Socket.IO · Redis · PostgreSQL · Prisma · Stripe Connect · Expo React Native · Next.js · AWS

Side project · Shipped

Multi-tenant AI app platform

One Go + TypeScript backend serving several consumer AI apps, isolated per tenant, shipped with blue-green deploys.

apps on one backend
2
LLM providers
3
commits, ~80% mine
289

Go · Gin · GORM · PostgreSQL · pgvector · Redis · TypeScript · LangGraph · OpenTelemetry · GitHub Actions

Open source · Building

mcp-evals

An open-source harness being built to benchmark MCP servers across models: accuracy, tool choice and context cost.

graded runs in the first real benchmark
144
less context with NeatCode (GPT-6.1 Sol)
61%
lower cost per task, same comparison
46%

TypeScript · MCP SDK · zod · Commander