Codebase Q&A Agent
~1 weekPoint it at any repo — it indexes the code and answers questions about architecture, bugs, and how things work.
Clone a repo, chunk the files, embed them into a vector DB (pgvector or ChromaDB), then expose a chat interface where developers can ask questions like 'how does authentication work?' or 'where is the payment logic?'. Use RAG with Claude for accurate, grounded answers.
MonetizationSaaS: $49/mo per team. Self-hosted option at $299 one-time.
Stack:PythonLangChainpgvectorFastAPI
Research Agent
~1 weekGive it a topic, it searches the web, reads papers, and produces a structured report with citations.
An autonomous agent that takes a research question, breaks it into sub-queries, searches the web and academic databases (Arxiv, Semantic Scholar), reads the top results, synthesizes findings, and outputs a structured markdown report with proper citations. Use tool-use with Claude or GPT for the agent loop.
MonetizationAPI credits: $0.50 per report. Subscription: $29/mo unlimited.
Stack:PythonFastAPIClaude APITavily Search
PR Review Agent
~1 weekAn AI agent that reviews every PR for bugs, security issues, and style — posts comments directly on GitHub.
Build a GitHub Action that triggers on PR open/update, reads the diff, sends it to Claude or GPT, and posts inline review comments. Include checks for security (SQL injection, secrets in code), performance (N+1 queries, missing indexes), and style. Configurable rules via a YAML file in the repo.
MonetizationSaaS: $19/mo per repo. Free tier for open source.
Stack:TypeScriptGitHub ActionsClaude API