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Bug bounty methodology with OpenCode CLI: an open source toolkit hunting bugs worth $200 to $2 million

8 min readAug 12, 2026

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Hi everyone, I am Nitin Gavhane and In this blog I am walking through a bug bounty toolkit I first posted about on X a few days back. That thread was the short version. Here I want to go through the actual setup, the workflow, and what the tool finds, using OpenCode CLI instead of Claude Code, since a good chunk of the bug bounty crowd doesn’t have a Claude subscription and asked how to run this without one.

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What OpenCode CLI actually is

First, a quick clarification, because people sometimes assume OpenCode is an Anthropic product. It is not. OpenCode is an open source AI coding agent that runs in your terminal, and it connects to a long list of model providers, including Claude, GPT, Gemini, and local models through Ollama. You install it with one command:

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curl -fsSL opencode.ai/install | bash

Because it isn’t tied to one model vendor, you can point it at whichever provider you already pay for, or run something local if you’d rather not send target data to a…

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Nitin Gavhane
Nitin Gavhane

Written by Nitin Gavhane

Started freelancing, got obsessed with AI and security. Now sharing everything I learn with builders and founders. https://nitingavhane.com/