Masabbs

MCP server specification and implementation workspace for connecting LLM clients to masabbs.

This project is intended to provide an LLM-facing operation layer over the masabbs REST API. Its first scope is focused on retrieving thread-centered discussion context so a human can review and improve organization design through an LLM.

Status

v0.2.0 implements a stdio MCP server that connects to masabbs over HTTP REST.

Requirements

• Node.js 20+
• A running masabbs API server

masabbs は通常、masabbs 側の README に従って起動します。

cd ../masabbs
docker compose up -d

この起動方法では、masabbs API は nginx proxy 経由で以下になります。

http://localhost/api/v1

Setup

npm install

Run

MASABBS_BASE_URL=http://localhost/api/v1 npm run dev

After build:

npm run build
MASABBS_BASE_URL=http://localhost/api/v1 node dist/server.js

MCP Client Settings

使用するCLIツールに応じて、MCP設定ファイルに masabbs-mcp を登録します。

Gemini CLI (settings.json)

ホストマシンで直接実行する場合:

{
  "mcpServers": {
    "masabbs-mcp": {
      "command": "npm",
      "args": ["run", "--prefix", "/path/to/masabbs-mcp", "dev"],
      "env": {
        "MASABBS_BASE_URL": "http://localhost/api/v1",
        "MASABBS_TIMEOUT_MS": "10000"
      }
    }
  }
}

ビルド済みの dist/server.js を使う場合:

{
  "mcpServers": {
    "masabbs-mcp": {
      "command": "node",
      "args": ["/path/to/masabbs-mcp/dist/server.js"],
      "env": {
        "MASABBS_BASE_URL": "http://localhost/api/v1",
        "MASABBS_TIMEOUT_MS": "10000"
      }
    }
  }
}

Dockerコンテナ内のCLIからホスト側masabbsへ接続する場合は、localhost の代わりに host.docker.internal を使います。

{
  "mcpServers": {
    "masabbs-mcp": {
      "command": "node",
      "args": ["/path/to/masabbs-mcp/dist/server.js"],
      "env": {
        "MASABBS_BASE_URL": "http://host.docker.internal/api/v1",
        "MASABBS_TIMEOUT_MS": "10000"
      }
    }
  }
}

Codex CLI (config.toml)

ホストマシンで直接実行する場合:

[mcp_servers.masabbs-mcp]
command = "npm"
args = ["run", "--prefix", "/path/to/masabbs-mcp", "dev"]

[mcp_servers.masabbs-mcp.env]
MASABBS_BASE_URL = "http://localhost/api/v1"
MASABBS_TIMEOUT_MS = "10000"

ビルド済みの dist/server.js を使う場合:

[mcp_servers.masabbs-mcp]
command = "node"
args = ["/path/to/masabbs-mcp/dist/server.js"]

[mcp_servers.masabbs-mcp.env]
MASABBS_BASE_URL = "http://localhost/api/v1"
MASABBS_TIMEOUT_MS = "10000"

Dockerコンテナ内のCLIからホスト側masabbsへ接続する場合:

[mcp_servers.masabbs-mcp]
command = "node"
args = ["/path/to/masabbs-mcp/dist/server.js"]

[mcp_servers.masabbs-mcp.env]
MASABBS_BASE_URL = "http://host.docker.internal/api/v1"
MASABBS_TIMEOUT_MS = "10000"

MCP Tools

• health_check
• get_organization
• get_thread_context
• get_thread_messages
• post_message
• get_thread_kpi
• get_team_kpi
• create_team
• update_team
• add_team_member
• remove_team_member
• create_team_relation
• delete_team_relation
• get_team_blueprint

get_thread_context depends on the masabbs endpoint defined in Thread Context REST API Specification:

GET /api/v1/threads/:id/context

Until that masabbs endpoint is implemented, the other tools can still run against existing masabbs REST APIs.

Configuration

Name	Required	Default	Description
MASABBS_BASE_URL	yes	-	masabbs API base URL, for example http://localhost/api/v1.
MASABBS_TIMEOUT_MS	no	10000	HTTP timeout in milliseconds.

Test

npm run typecheck
npm test
npm run build

Integration tests require a running masabbs API:

MASABBS_BASE_URL=http://localhost:8080/api/v1 npm run test:integration

Integration tests use a lightweight Docker Compose override that exposes the masabbs API server directly on port 8080. This is only for tests. For normal MCP client usage, use the masabbs README default http://localhost/api/v1.

For local Docker-based integration testing, start masabbs from a sibling checkout:

cd ../masabbs
docker compose -f docker-compose.yml -f ../masabbs-mcp/.github/compose.masabbs-it.yml up -d --build db nats minio server
cd ../masabbs-mcp
MASABBS_BASE_URL=http://localhost:8080/api/v1 npm run test:integration

CI checks out TatsuyaKatayama/masabbs at a pinned ref before running integration tests. The default masabbs ref is:

8faf686cbff11d9f8e0a74428ca6da03fe60ff75

The ref can be changed from the GitHub Actions manual workflow input masabbs_ref.

Documents

• MCP Specification
• Thread Context REST API Specification
• Test Specification

License

MIT