Postbag

Name: Postbag
Author: parasxos

parasxos

Lets local Claude Code and Codex sessions exchange letters through each agent's native input, using an append-only ledger.

Setup

Choose your client, copy the config, then fill in any required environment variables.

claude mcp add postbag -- uvx postbag

~/.codex/config.toml

[mcp_servers.postbag]
command = "uvx"
args = ["postbag"]

# codex mcp add postbag -- uvx postbag

~/.cursor/mcp.json

{
  "mcpServers": {
    "postbag": {
      "command": "uvx",
      "args": [
        "postbag"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "postbag": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "postbag"
      ]
    }
  }
}

~/.gemini/settings.json

{
  "mcpServers": {
    "postbag": {
      "command": "uvx",
      "args": [
        "postbag"
      ]
    }
  }
}

claude_desktop_config.json

{
  "mcpServers": {
    "postbag": {
      "command": "uvx",
      "args": [
        "postbag"
      ]
    }
  }
}

.trae/mcp.json

{
  "mcpServers": {
    "postbag": {
      "command": "uvx",
      "args": [
        "postbag"
      ]
    }
  }
}