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Agent Postbox

io.github.Aethelgard-Systems/agent-postbox ยท v0.2.1

Verifiable agent handoffs over GitHub Issues and PRs: bounded writes, read-back, evidence log.

Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add agent-postbox -e AGENT_POSTBOX_TOKEN=<AGENT_POSTBOX_TOKEN> -- npx -y [email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "agent-postbox": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "AGENT_POSTBOX_TOKEN": "<AGENT_POSTBOX_TOKEN>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "agent-postbox": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "AGENT_POSTBOX_TOKEN": "<AGENT_POSTBOX_TOKEN>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "agent-postbox": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "AGENT_POSTBOX_TOKEN": "<AGENT_POSTBOX_TOKEN>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
AGENT_POSTBOX_TOKEN
Required, secret		GitHub token for this agent (fine-grained, one repo)

Details

Package[email protected] (NPM, stdio)
First published26 Oct 2026
Last updated26 Oct 2026
Registry nameio.github.Aethelgard-Systems/agent-postbox

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