mcp-server-mas-sequential-thinking MCP — ユースケース, インストール & ライブデモ

なぜ使うのか

主な機能

Six-perspective analysis: factual, emotional, critical, optimistic, creative, synthesis
Exposed as a single MCP tool: sequentialthinking
Works with DeepSeek (default), Groq, OpenRouter, GitHub Models, Anthropic, or local Ollama
Optional Exa web search integration for 4 of the agents
Dual-model strategy — stronger model for synthesis

ライブデモ

実際の動作

server-mas-sequential-thinking.replay ▶ 準備完了

0/0

インストール

クライアントを選択

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "server-mas-sequential-thinking": {
      "command": "uvx",
      "args": [
        "mcp-server-mas-sequential-thinking"
      ],
      "_inferred": true
    }
  }
}

Claude Desktop → Settings → Developer → Edit Config を開く。保存後、アプリを再起動。

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "server-mas-sequential-thinking": {
      "command": "uvx",
      "args": [
        "mcp-server-mas-sequential-thinking"
      ],
      "_inferred": true
    }
  }
}

Cursor は Claude Desktop と同じ mcpServers スキーマを使用。プロジェクト設定はグローバルより優先。

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "server-mas-sequential-thinking": {
      "command": "uvx",
      "args": [
        "mcp-server-mas-sequential-thinking"
      ],
      "_inferred": true
    }
  }
}

Cline サイドバーの MCP Servers アイコンをクリックし、"Edit Configuration" を選択。

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "server-mas-sequential-thinking": {
      "command": "uvx",
      "args": [
        "mcp-server-mas-sequential-thinking"
      ],
      "_inferred": true
    }
  }
}

Claude Desktop と同じ形式。Windsurf を再起動して反映。

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "server-mas-sequential-thinking",
      "command": "uvx",
      "args": [
        "mcp-server-mas-sequential-thinking"
      ]
    }
  ]
}

Continue はマップではなくサーバーオブジェクトの配列を使用。

~/.config/zed/settings.json

{
  "context_servers": {
    "server-mas-sequential-thinking": {
      "command": {
        "path": "uvx",
        "args": [
          "mcp-server-mas-sequential-thinking"
        ]
      }
    }
  }
}

context_servers に追加。保存時に Zed がホットリロード。

claude mcp add server-mas-sequential-thinking -- uvx mcp-server-mas-sequential-thinking

ワンライナー。claude mcp list で確認、claude mcp remove で削除。

ユースケース

実用的な使い方： mcp-server-mas-sequential-thinking

Stress-test a strategic decision with six perspectives

👤 Founders, PMs facing non-obvious tradeoffs ⏱ ~15 min intermediate

使うタイミング： You're debating something hard ('raise now or bootstrap?', 'kill the feature?') and want sharper internal debate than single-agent brainstorming.

前提条件

LLM API key (DeepSeek recommended for cost) — platform.deepseek.com

フロー

Frame the question

sequentialthinking: Should we raise a Series A now at $20M post to extend runway 24 months, or bootstrap further and raise at a likely higher valuation in 12 months? Here's our context: [facts]✓ コピーしました

→ Six-agent analysis + synthesis recommendation
Interrogate the synthesis

The synthesis recommends X. What's the weakest point in that reasoning? Have the critical agent push harder.✓ コピーしました

→ Sharper critique

結果： A well-rounded, written-down analysis you can share with co-founders.

注意点

Token cost explosion on long context — Keep the framing tight — 200-500 words of context; agents multiply it 6x
Synthesis can average to mush — Pass the recommendation back through with decide between options A and B, don't hedge

Have the critical and emotional agents red-team your plan

👤 Anyone shipping a risky plan ⏱ ~10 min beginner

使うタイミング： You drafted a launch plan and want the critical + emotional agents specifically to pressure-test it.

フロー

Submit the plan

sequentialthinking with focus on critical + emotional: Here's my launch plan [paste]. Find the three biggest risks and the three emotional reactions customers will have.✓ コピーしました

→ Two-perspective analysis

結果： Risks you hadn't noticed; emotional reactions to prepare for.

注意点

Using this for simple yes/no questions wastes tokens — Reserve for multi-faceted decisions; use regular Claude for simple ones

Brainstorm with the creative agent grounded in real web data

👤 Content strategists, product people ⏱ ~15 min intermediate

使うタイミング： You need ideas that aren't just from the model's training data — agents should search the web for current angles.

前提条件

Exa API key — exa.ai — separate subscription

フロー

Enable Exa

Set EXA_API_KEY in env. Run sequentialthinking on: 'novel marketing angles for a local bakery in 2026'. Let creative + factual agents search the web.✓ コピーしました

→ Grounded ideas with citations

結果： Current, defensible creative angles.

注意点

Exa search cost on top of LLM cost — Cap agent search budget via Exa rate limits

組み合わせ

他のMCPと組み合わせて10倍の力を

server-mas-sequential-thinking + notion

Save the six-agent analysis as a decision doc

Run sequentialthinking on this strategic question, then create a Notion page in 'Decision Log' with all agent outputs and the synthesis.✓ コピーしました

ツール

このMCPが提供する機能

ツール	入力	呼び出すタイミング	コスト
sequentialthinking	prompt: str, perspectives?: str[], model?: str	Multi-faceted questions that benefit from different cognitive modes	5-10x single-agent tokens

コストと制限

運用コスト

APIクォータ: Bounded by your LLM provider quota
呼び出しあたりのトークン: 5-10x a single-agent call — easily 20k-80k tokens per invocation
金額: DeepSeek is cheap (~$0.14/M input); with Anthropic Opus expect $1-3 per invocation
ヒント: Default to DeepSeek; only use Opus for the synthesis step via dual-model config.

セキュリティ

権限、シークレット、影響範囲

認証情報の保管： LLM_PROVIDER_API_KEY + optional EXA_API_KEY in env vars

データ送信先： Your prompts go to 6 agents' worth of LLM calls + optional Exa searches

High token usage — set daily spend caps with your LLM provider.
Not suitable for latency-sensitive contexts; each call is tens of seconds.

トラブルシューティング

よくあるエラーと対処法

Very slow / timeout

6 agents running sequentially = 30-60s. Increase client timeout to 120s+.

OPENAI_API_KEY / DEEPSEEK_API_KEY not found

Set the env var matching your chosen provider. Config file selects the provider.

Output inconsistent between runs

Stochastic by design — lower temperature or fix seed if your LLM supports it.

代替案

mcp-server-mas-sequential-thinking 他との比較

代替案	代わりに使う場面	トレードオフ
Native sequential-thinking MCP (official)	You want single-agent chain-of-thought without the multi-agent cost	Simpler, faster, cheaper; less diverse output
Direct use of Agno framework	You want to customize the agent roles	Not an MCP; code-first

その他

リソース

📖 GitHub の公式 README を読む

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