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Ummul Momenin Suchi

I build modern, scalable digital experiences where engineering quality meets thoughtful design.

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© 2026 Ummul Momenin Suchi. Built with Next.js & shadcn/ui.

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PromptLab

Prompt experimentation bench with embeddings, vector search, and side-by-side LLM response diffs.

back to projects·2025·AI Engineer·shipped

promptlab.md

Overview

PromptLab is a lab notebook for prompt engineering — version prompts, compare models, and inspect retrieval quality.

What I built

Prompt versioning with A/B diffs across models.
Embeddings explorer for chunk quality and nearest-neighbor checks.
Vector search playground wired into curated corpora.
Shareable experiment links for team review.

Tech decisions

Next.js + TypeScript UI over Embeddings & Vector Search and Prompt Engineering workflows powered by LangChain / AI SDK.

stack.json

stack

Prompt EngineeringEmbeddings & Vector SearchLangChain / AI SDKNext.jsTypeScriptTailwind CSS

highlights.md

highlights

>Side-by-side prompt diffs
>Embedding neighborhood explorer
>Shareable experiment links

metrics.log

metrics

Experiments: 420+
Models compared: 6
Corpus docs: 2.1k

links.sh

private / unpublished

$ next project

SecureGate

Auth gateway with OWASP-aware defaults, JWT/OAuth flows, and hardened API middleware.