OpenCode SDK Development

Quick Start: Custom Tool in 3 Steps

1. Create .opencode/tool/my-tool.ts:

import { tool } from "@opencode-ai/plugin"

export default tool({
  description: "Brief description of what the tool does",
  args: {
    query: tool.schema.string().describe("Search query")
  },
  async execute({ query }, { abort }) {
    return `Result for: ${query}`
  }
})