--- title: "Building an ACP-Compatible Agent Live — Bennet Fenner, Zed" url: https://daily.dev/posts/building-an-acp-compatible-agent-live-bennet-fenner-zed-maj2p3lkf source_url: https://www.youtube.com/watch?v=HsxQICTLF84 type: video:youtube source: "AI Engineer" published: 2026-07-08T12:19:07.872Z updated: 2026-07-08T12:24:31.902Z tags: ["typescript", "ai-agents", "mcp", "zed"] reading_time: 18 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Building an ACP-Compatible Agent Live — Bennet Fenner, Zed **[AI Engineer](https://daily.dev/sources/aidotengineer)** · 18 min read · 0 upvotes · 0 comments ## Summary Bennett Fenner from Zed demonstrates how to build an ACP (Agent Client Protocol)-compatible coding agent live in TypeScript. ACP is a JSON-RPC based protocol similar to MCP/LSP that allows AI coding agents and editor clients to communicate through a unified interface. The talk walks through adding ACP support to a minimal TypeScript coding agent: implementing initialize, session management, prompt handling, and cancellation; streaming token output via session updates; surfacing tool calls (file read/write) with status indicators; proxying file system operations through the client; and using the client's terminal capability. The demo shows the agent running inside Zed, with 40+ clients already supporting ACP including JetBrains, Obsidian, Cursor, and OpenCode. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#typescript](https://daily.dev/tags/typescript), [#ai-agents](https://daily.dev/tags/ai-agents), [#mcp](https://daily.dev/tags/mcp), [#zed](https://daily.dev/tags/zed) [View this post on daily.dev](https://daily.dev/posts/building-an-acp-compatible-agent-live-bennet-fenner-zed-maj2p3lkf)