Claude Code ACP Adapter

[rawnly]

Hey I just discovered https://github.com/Xuanwo/acp-claude-code and wanted to try it with codecompanion, seems to work fine with this config (copy-pasted from gemini-cli with some modifications)

---@class CodeCompanion.ACPAdapter.GeminiCLI: CodeCompanion.ACPAdapter
return {
  name = "claude_code",
  formatted_name = "Claude Code",
  type = "acp",
  roles = {
    llm = "assistant",
    user = "user",
  },
  opts = {
    vision = true,
  },
  commands = {
    default = {
      "npx",
      "acp-claude-code",
    },
  },
  defaults = {
    mcpServers = {},
    timeout = 20000, -- 20 seconds
  },
  env = {
    ANTROPHIC_API_KEY = "ANTROPHIC_API_KEY",
  },
  parameters = {
    protocolVersion = 1,
    clientCapabilities = {
      fs = { readTextFile = true, writeTextFile = true },
    },
    clientInfo = {
      name = "CodeCompanion.nvim",
      version = "1.0.0",
    },
  },
  handlers = {
    ---@param self CodeCompanion.ACPAdapter
    ---@return boolean
    setup = function(self) return true end,

    ---@param self CodeCompanion.ACPAdapter
    ---@param messages table
    ---@return table
    form_messages = function(self, messages)
      return vim
        .iter(messages)
        :filter(function(msg)
          -- Ensure we're only sending user messages that Gemini hasn't seen before
          return msg.role == self.roles.user and not msg._meta.sent
        end)
        :map(function(msg)
          if msg.opts and msg.opts.tag == "image" then
            return {
              type = "image",
              data = msg.content,
              mimeType = msg.opts.mimetype,
            }
          end
          if msg.content and msg.content ~= "" then
            return {
              type = "text",
              text = msg.content,
            }
          end
        end)
        :totable()
    end,

    ---Function to run when the request has completed. Useful to catch errors
    ---@param self CodeCompanion.ACPAdapter
    ---@param code number
    ---@return nil
    on_exit = function(self, code) end,
  },
}

[olimorris]

That validates my ACP implementation at least 😆.

Amazing thanks for sharing. Once support is official, I'll create a helper file with some shared methods.

[rawnly]

Yes! the only weird thing (but maybe i got something wrong in my adaptation) is that when it's waiting there's no spinner/status showing that's waiting for an answer

[rawnly]

Screenshot.CodeCompanion.5064526.configghostty.-.Nvim.000831.mp4

[olimorris]

You'll need to implement this yourself. We have guides in the docs for how to do this