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mcp-server-circleci

Official

CircleCI MCP サーバー

GitHub サークルCI npm

モデルコンテキストプロトコル(MCP)は、大規模言語モデル(LLM)と外部システム間のコンテキストを管理するための新しい標準化プロトコルです。このリポジトリでは、 CircleCI用のMCPサーバーを提供します。

これにより、Cursor IDE、Windsurf、Copilot、または MCP でサポートされている任意のクライアントを使用して、自然言語で CircleCI で次の操作を実行できるようになります。

https://github.com/user-attachments/assets/3c765985-8827-442a-a8dc-5069e01edb74

要件

NPX インストールの場合:

Docker インストールの場合:

Related MCP server: codemagic_mcp

インストール

カーソル

NPXの使用

カーソル MCP 構成に以下を追加します。

{
  "mcpServers": {
    "circleci-mcp-server": {
      "command": "npx",
      "args": ["-y", "@circleci/mcp-server-circleci"],
      "env": {
        "CIRCLECI_TOKEN": "your-circleci-token",
        "CIRCLECI_BASE_URL": "https://circleci.com" // Optional - required for on-prem customers only
      }
    }
  }
}

Dockerの使用

カーソル MCP 構成に以下を追加します。

{
  "mcpServers": {
    "circleci-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "-e", "CIRCLECI_TOKEN",
        "-e", "CIRCLECI_BASE_URL",
        "circleci:mcp-server-circleci"
      ],
      "env": {
        "CIRCLECI_TOKEN": "your-circleci-token",
        "CIRCLECI_BASE_URL": "https://circleci.com" // Optional - required for on-prem customers only
      }
    }
  }
}

VSコード

NPXの使用

.vscode/mcp.jsonに VS Code 用の CircleCI MCP Server をインストールするには:

{
  // 💡 Inputs are prompted on first server start, then stored securely by VS Code.
  "inputs": [
    {
      "type": "promptString",
      "id": "circleci-token",
      "description": "CircleCI API Token",
      "password": true
    },
    {
      "type": "promptString",
      "id": "circleci-base-url",
      "description": "CircleCI Base URL",
      "default": "https://circleci.com"
    }
  ],
  "servers": {
    // https://github.com/ppl-ai/modelcontextprotocol/
    "circleci-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@circleci/mcp-server-circleci"],
      "env": {
        "CIRCLECI_TOKEN": "${input:circleci-token}",
        "CIRCLECI_BASE_URL": "${input:circleci-base-url}"
      }
    }
  }
}

Dockerの使用

Docker を使用して.vscode/mcp.jsonに VS Code 用の CircleCI MCP Server をインストールするには:

{
  // 💡 Inputs are prompted on first server start, then stored securely by VS Code.
  "inputs": [
    {
      "type": "promptString",
      "id": "circleci-token",
      "description": "CircleCI API Token",
      "password": true
    },
    {
      "type": "promptString",
      "id": "circleci-base-url",
      "description": "CircleCI Base URL",
      "default": "https://circleci.com"
    }
  ],
  "servers": {
    // https://github.com/ppl-ai/modelcontextprotocol/
    "circleci-mcp-server": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "-e", "CIRCLECI_TOKEN",
        "-e", "CIRCLECI_BASE_URL",
        "circleci:mcp-server-circleci"
      ],
      "env": {
        "CIRCLECI_TOKEN": "${input:circleci-token}",
        "CIRCLECI_BASE_URL": "${input:circleci-base-url}"
      }
    }
  }
}

クロードデスクトップ

NPXの使用

claude_desktop_config.json に次の内容を追加します。

{
  "mcpServers": {
    "circleci-mcp-server": {
      "command": "npx",
      "args": ["-y", "@circleci/mcp-server-circleci"],
      "env": {
        "CIRCLECI_TOKEN": "your-circleci-token",
        "CIRCLECI_BASE_URL": "https://circleci.com" // Optional - required for on-prem customers only
      }
    }
  }
}

Dockerの使用

claude_desktop_config.json に次の内容を追加します。

{
  "mcpServers": {
    "circleci-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "-e", "CIRCLECI_TOKEN",
        "-e", "CIRCLECI_BASE_URL",
        "circleci:mcp-server-circleci"
      ],
      "env": {
        "CIRCLECI_TOKEN": "your-circleci-token",
        "CIRCLECI_BASE_URL": "https://circleci.com" // Optional - required for on-prem customers only
      }
    }
  }
}

このファイルを見つける/作成するには、まずClaudeデスクトップの設定を開きます。次に、設定パネルの左側のバーにある「開発」をクリックし、「設定の編集」をクリックします。

これにより、次の場所に構成ファイルが作成されます。

  • macOS: ~/ライブラリ/アプリケーションサポート/Claude/claude_desktop_config.json

  • Windows: %APPDATA%\Claude\claude_desktop_config.json

Claude Desktop で MCP サーバーを使用する方法の詳細については、以下のガイドを参照してください: https://modelcontextprotocol.io/quickstart/user

クロード・コード

NPXの使用

Claude Code をインストールした後、次のコマンドを実行します。

claude mcp add circleci-mcp-server -e CIRCLECI_TOKEN=your-circleci-token -- npx -y @circleci/mcp-server-circleci

Dockerの使用

Claude Code をインストールした後、次のコマンドを実行します。

claude mcp add circleci-mcp-server -e CIRCLECI_TOKEN=your-circleci-token -e CIRCLECI_BASE_URL=https://circleci.com -- docker run --rm -i -e CIRCLECI_TOKEN -e CIRCLECI_BASE_URL circleci:mcp-server-circleci

Claude Code で MCP サーバーを使用する方法の詳細については、以下のガイドを参照してください: https://docs.anthropic.com/en/docs/agents-and-tools/claude-code/tutorials#set-up-model-context-protocol-mcp

ウィンドサーフィン

NPXの使用

windsurf mcp_config.json に以下を追加します。

{
  "mcpServers": {
    "circleci-mcp-server": {
      "command": "npx",
      "args": ["-y", "@circleci/mcp-server-circleci"],
      "env": {
        "CIRCLECI_TOKEN": "your-circleci-token",
        "CIRCLECI_BASE_URL": "https://circleci.com" // Optional - required for on-prem customers only
      }
    }
  }
}

Dockerの使用

windsurf mcp_config.json に以下を追加します。

{
  "mcpServers": {
    "circleci-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "-e", "CIRCLECI_TOKEN",
        "-e", "CIRCLECI_BASE_URL",
        "circleci:mcp-server-circleci"
      ],
      "env": {
        "CIRCLECI_TOKEN": "your-circleci-token",
        "CIRCLECI_BASE_URL": "https://circleci.com" // Optional - required for on-prem customers only
      }
    }
  }
}

Windsurf で MCP サーバーを使用する方法の詳細については、以下のガイドを参照してください: https://docs.windsurf.com/windsurf/mcp

Smithery経由でインストール

Smithery経由で Claude Desktop 用の CircleCI MCP Server を自動的にインストールするには:

npx -y @smithery/cli install @CircleCI-Public/mcp-server-circleci --client claude

特徴

サポートされているツール

  • get_build_failure_logs

    CircleCI ビルドから詳細な失敗ログを取得します。このツールは次の 3 つの方法で使用できます。

    1. プロジェクトスラッグとブランチの使用(推奨ワークフロー):

      • まず、利用可能なプロジェクトをリストします。

        • list_followed_projectsツールを使用してプロジェクトを取得します

        • 例:「CircleCI プロジェクトの一覧を表示する」

        • 次に、プロジェクトスラッグが関連付けられているプロジェクトを選択します。

        • 例:「my-project を使ってみましょう」

      • 次に、特定のブランチのビルド失敗ログを取得するように要求します。

        • 例:「メインブランチの my-project のビルド失敗を取得する」

    2. CircleCI URL の使用:

    3. ローカル プロジェクト コンテキストの使用:

      • 以下を提供することで、ローカル ワークスペースから作業できます。

        • ワークスペースのルートパス

        • GitリモートURL

        • 支店名

      • 例: 「現在のブランチで最後に失敗したパイプラインを見つける」

    このツールは、次のようなフォーマットされたログを返します。

    • ジョブ名

    • ステップバイステップの実行の詳細

    • 失敗メッセージとコンテキスト

    これは特に次の場合に役立ちます:

    • 失敗したビルドのデバッグ

    • テストの失敗を分析する

    • 展開の問題の調査

    • IDEを離れずにビルドログに素早くアクセス

  • find_flaky_tests

    テスト実行履歴を分析し、CircleCIプロジェクト内の不安定なテストを特定します。この機能は、https: //circleci.com/blog/introducing-test-insights-with-flaky-test-detection/#flaky-test-detectionで説明されている不安定なテスト検出機能を活用します。

    このツールは次の 3 つの方法で使用できます。

    1. プロジェクトスラッグの使用(推奨ワークフロー):

      • まず、利用可能なプロジェクトをリストします。

        • list_followed_projectsツールを使用してプロジェクトを取得します

        • 例:「CircleCI プロジェクトの一覧を表示する」

        • 次に、projectSlugが関連付けられているプロジェクトを選択します。

        • 例:「my-project を使ってみましょう」

      • 次に、不安定なテストを取得するように要求します。

        • 例: 「my-project の不安定なテストを取得する」

    2. CircleCI プロジェクト URL の使用:

    3. ローカル プロジェクト コンテキストの使用:

      • 以下を提供することで、ローカル ワークスペースから作業できます。

        • ワークスペースのルートパス

        • GitリモートURL

      • 例: 「現在のプロジェクトで不安定なテストを見つける」

    このツールは、次のような不安定なテストに関する詳細な情報を返します。

    • テスト名とファイルの場所

    • 失敗メッセージとコンテキスト

    これは次のことに役立ちます:

    • テストスイート内の信頼性の低いテストを特定する

    • テストの失敗に関する詳細なコンテキストを取得する

    • テストの改善についてデータに基づいた意思決定を行う

  • get_latest_pipeline_status

    指定されたブランチの最新のパイプラインのステータスを取得します。このツールは3つの方法で使用できます。

    1. プロジェクトスラッグとブランチの使用(推奨ワークフロー):

      • まず、利用可能なプロジェクトをリストします。

        • list_followed_projectsツールを使用してプロジェクトを取得します

        • 例:「CircleCI プロジェクトの一覧を表示する」

        • 次に、projectSlugが関連付けられているプロジェクトを選択します。

        • 例:「my-project を使ってみましょう」

      • 次に、特定のブランチの最新のパイプライン ステータスを取得するように要求します。

        • 例:「メインブランチの my-project の最新パイプラインのステータスを取得する」

    2. CircleCI プロジェクト URL の使用:

    3. ローカル プロジェクト コンテキストの使用:

      • 以下を提供することで、ローカル ワークスペースから作業できます。

        • ワークスペースのルートパス

        • GitリモートURL

        • 支店名

      • 例: 「現在のプロジェクトの最新のパイプラインのステータスを取得する」

    ツールは最新のパイプラインのフォーマットされたステータスを返します。

    • ワークフロー名と現在のステータス

    • 各ワークフローの所要時間

    • 作成と完了のタイムスタンプ

    • パイプライン全体の健全性

    出力例:

    ---
    Workflow: build
    Status: success
    Duration: 5 minutes
    Created: 4/20/2025, 10:15:30 AM
    Stopped: 4/20/2025, 10:20:45 AM
    ---
    Workflow: test
    Status: running
    Duration: unknown
    Created: 4/20/2025, 10:21:00 AM
    Stopped: in progress

    これは特に次の場合に役立ちます:

    • 最新のパイプラインのステータスを確認する

    • 特定のブランチの最新パイプラインのステータスを取得する

    • IDEを離れずに最新のパイプラインのステータスを素早く確認

  • get_job_test_results

    CircleCIジョブのテストメタデータを取得し、IDEを離れることなくテスト結果を分析できます。このツールは以下の3つの方法で使用できます。

    1. プロジェクトスラッグとブランチの使用(推奨ワークフロー):

      • まず、利用可能なプロジェクトをリストします。

        • list_followed_projectsツールを使用してプロジェクトを取得します

        • 例:「CircleCI プロジェクトの一覧を表示する」

        • 次に、projectSlugが関連付けられているプロジェクトを選択します。

        • 例:「my-project を使ってみましょう」

      • 次に、特定のブランチのテスト結果を取得するように要求します。

        • 例:「メインブランチの my-project のテスト結果を取得する」

    2. CircleCI URL の使用:

    3. ローカル プロジェクト コンテキストの使用:

      • 以下を提供することで、ローカル ワークスペースから作業できます。

        • ワークスペースのルートパス

        • GitリモートURL

        • 支店名

      • 例:「メインブランチ上の現在のプロジェクトのテスト結果を取得する」

    ツールは詳細なテスト結果情報を返します。

    • すべてのテストの概要(合計、成功、失敗)

    • 失敗したテストに関する詳細情報:

      • テスト名とクラス

      • ファイルの場所

      • エラーメッセージ

      • 実行時間

    • 成功したテストのリストとタイミング情報

    • テスト結果でフィルタリング

    これは特に次の場合に役立ちます:

    • CircleCI ウェブ UI にアクセスせずにテストの失敗を迅速に分析

    • テスト失敗のパターンの特定

    • 最適化が必要な可能性のある遅いテストを見つける

    • プロジェクト全体のテスト範囲を確認する

    • 不安定なテストのトラブルシューティング

    注: このツールを使用するには、CircleCI の設定でテストメタデータが適切に設定されている必要があります。テストメタデータの収集設定の詳細については、 https ://circleci.com/docs/collect-test-data/ をご覧ください。

  • config_helper

    CircleCI の設定タスクをガイダンスと検証で支援します。このツールは以下のことに役立ちます。

    1. CircleCI 構成を検証します。

      • .circleci/config.yml の構文エラーとセマンティックエラーをチェックします

      • 例:「CircleCI の設定を検証する」

    このツールは以下を提供します:

    • 詳細な検証結果

    • 構成の推奨事項

    これは次のことに役立ちます:

    • プッシュする前に設定エラーをキャッチする

    • CircleCI の設定のベストプラクティスを学ぶ

    • 構成の問題のトラブルシューティング

    • CircleCIの機能を正しく実装する

  • create_prompt_template

    AI対応アプリケーションの機能要件に基づいて、構造化されたプロンプトテンプレートを生成するのに役立ちます。このツールは以下の機能を提供します。

    1. 機能要件を構造化されたプロンプトに変換します。

      • ユーザーの要件を最適化されたプロンプトテンプレートに変換します

      • 例: 「年齢とトピック別に就寝時のお話を生成するためのプロンプトテンプレートを作成する」

    このツールは以下を提供します:

    • 構造化されたプロンプトテンプレート

    • 必要な入力パラメータを定義するコンテキストスキーマ

    これは次のことに役立ちます:

    • AIアプリケーションに効果的なプロンプトを作成する

    • 一貫した結果を得るために入力パラメータを標準化する

    • 堅牢なAI搭載機能を構築する

  • recommend_prompt_template_tests

    プロンプトテンプレートのテストケースを生成し、期待通りの結果が得られるかを確認します。このツールは以下の機能を備えています。

    1. プロンプト テンプレートのテスト ケースを提供します。

      • プロンプトテンプレートとコンテキストスキーマに基づいて多様なテストシナリオを作成します

      • 例: 「就寝時のストーリープロンプトテンプレートのテストを生成する」

    このツールは以下を提供します:

    • 推奨されるテストケースの配列

    • テンプレートの堅牢性をテストするためのさまざまなパラメータの組み合わせ

    これは次のことに役立ちます:

    • プロンプトテンプレートの機能を検証する

    • 入力全体にわたって一貫したAI応答を確保する

    • エッジケースと潜在的な問題を特定する

    • AIアプリケーション全体の品質を向上

  • list_followed_projects

    CircleCIでユーザーがフォローしているすべてのプロジェクトを一覧表示します。このツールは以下の機能を提供します。

    1. プロジェクトを取得して表示します:

      • ユーザーがアクセスでき、フォローしているすべてのプロジェクトを表示します

      • 各エントリにプロジェクト名とプロジェクトスラッグを提供します

      • 例:「CircleCI プロジェクトの一覧を表示する」

    ツールはフォーマットされたプロジェクトのリストを返します。出力例:

    Projects followed:
    1. my-project (projectSlug: gh/organization/my-project)
    2. another-project (projectSlug: gh/organization/another-project)

    これは特に次の場合に役立ちます:

    • 利用可能な CircleCI プロジェクトを特定する

    • 他の CircleCI ツールに必要な projectSlug を取得する

    • 後続の操作のためのプロジェクトの選択

    注: projectSlug (プロジェクト名ではありません) は他の多くの CircleCI ツールに必須であり、プロジェクトを選択した後にそれらのツールの呼び出しに使用されます。

  • run_pipeline

    パイプラインの実行をトリガーします。このツールは次の3つの方法で使用できます。

    1. プロジェクトスラッグとブランチの使用(推奨ワークフロー):

      • まず、利用可能なプロジェクトをリストします。

        • list_followed_projectsツールを使用してプロジェクトを取得します

        • 例:「CircleCI プロジェクトの一覧を表示する」

        • 次に、projectSlugが関連付けられているプロジェクトを選択します。

        • 例:「my-project を使ってみましょう」

      • 次に、特定のブランチに対してパイプラインを実行するように要求します。

        • 例:「メインブランチで my-project のパイプラインを実行する」

    2. CircleCI URL の使用:

    3. ローカル プロジェクト コンテキストの使用:

      • 以下を提供することで、ローカル ワークスペースから作業できます。

        • ワークスペースのルートパス

        • GitリモートURL

        • 支店名

      • 例:「メインブランチで現在のプロジェクトのパイプラインを実行する」

    このツールは、パイプラインの実行を監視するためのリンクを返します。

    これは特に次の場合に役立ちます:

    • CircleCI の Web UI にアクセスせずにパイプラインをすばやく実行

    • 特定のブランチからパイプラインを実行する

発達

はじめる

  1. リポジトリをクローンします。

    git clone https://github.com/CircleCI-Public/mcp-server-circleci.git
    cd mcp-server-circleci
  2. 依存関係をインストールします:

    pnpm install
  3. プロジェクトをビルドします。

    pnpm build

Dockerコンテナの構築

次のコマンドを使用して、Docker コンテナをローカルでビルドできます。

docker build -t circleci:mcp-server-circleci .

これにより、任意の MCP クライアントで使用できるcircleci:mcp-server-circleciとしてタグ付けされた Docker イメージが作成されます。

コンテナを実行するには:

docker run --rm -i -e CIRCLECI_TOKEN=your-circleci-token -e CIRCLECI_BASE_URL=https://circleci.com circleci:mcp-server-circleci

MCP Inspectorを使用した開発

MCPサーバーで反復処理を行う最も簡単な方法は、MCPインスペクターを使用することです。MCPインスペクターの詳細については、 https://modelcontextprotocol.io/docs/tools/inspectorをご覧ください。

  1. 開発サーバーを起動します。

    pnpm watch # Keep this running in one terminal
  2. 別のターミナルで、インスペクターを起動します。

    pnpm inspector
  3. 環境を構成します。

    • インスペクターUIの環境変数セクションにCIRCLECI_TOKENを追加します。

    • トークンにはCircleCIプロジェクトへの読み取りアクセス権が必要です

    • オプションでCircleCIのベースURLを設定できます。デフォルトはhttps//circleci.comです。

テスト

  • テスト スイートを実行します。

    pnpm test
  • 開発中にウォッチモードでテストを実行します。

    pnpm test:watch

より詳しい貢献ガイドラインについては、 CONTRIBUTING.mdをご覧ください。

Available Tools

16 tools
analyze_diffA

This tool is used to analyze a git diff (unstaged, staged, or all changes) against IDE rules to identify rule violations. By default, the tool will use the staged changes, unless the user explicitly asks for unstaged or all changes.

Parameters:

  • params: An object containing:

    • speedMode: boolean - A mode that can be enabled to speed up the analysis. Default value is false.

    • filterBy: enum - "Violations" | "Compliants" | "Human Review Required" | "None" - A filter that can be applied to set the focus of the analysis. Default is None.

    • diff: string - A git diff string.

    • rules: string - Rules to use for analysis, found in the rules subdirectory of the IDE workspace settings. Combine all rules from multiple files by separating them with ---

Returns:

  • A list of rule violations found in the git diff.

ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. It describes the analysis process and default behavior for diff selection, but lacks details on permissions, rate limits, error handling, or output format beyond 'a list of rule violations.' For a tool with no annotations, this leaves gaps in understanding its operational behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured and appropriately sized. It starts with the core purpose, adds usage context, then details parameters and returns. Each sentence adds value, with no redundant information. A minor deduction because the parameter explanations could be slightly more concise, but overall it's efficient and front-loaded.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (analyzing git diffs with configurable rules) and the absence of annotations and output schema, the description is adequate but incomplete. It covers the purpose, parameters, and basic return type, but lacks details on error cases, performance implications of speedMode, or examples of rule violation outputs. For a tool with no structured behavioral data, more context would be helpful.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description adds significant meaning beyond the input schema. The schema has 0% description coverage (no parameter descriptions), but the tool description explains all four parameters (speedMode, filterBy, diff, rules) with practical context, including default behaviors and usage notes (e.g., 'Combine all rules from multiple files by separating them with ---'). This compensates well for the schema's lack of documentation.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'analyze a git diff against IDE rules to identify rule violations.' It specifies the verb ('analyze'), resource ('git diff'), and scope ('against IDE rules'), distinguishing it from sibling tools like config_helper or run_pipeline which have unrelated functions. The description is specific and unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context for when to use the tool: 'analyze a git diff (unstaged, staged, or all changes) against IDE rules.' It also specifies default behavior: 'By default, the tool will use the staged changes, unless the user explicitly asks for unstaged or all changes.' However, it does not mention when NOT to use this tool or explicitly name alternatives among siblings, which prevents a score of 5.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

config_helperB

This tool helps analyze and validate and fix CircleCI configuration files.

Parameters:

  • params: An object containing:

    • configFile: string - The full contents of the CircleCI config file as a string. This should be the raw YAML content, not a file path.

Example usage: { "params": { "configFile": "version: 2.1 orbs: node: circleci/node@7 ..." } }

Note: The configFile content should be provided as a properly escaped string with newlines represented as .

Tool output instructions: - If the config is invalid, the tool will return the errors and the original config. Use the errors to fix the config. - If the config is valid, do nothing.

ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

B3.4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It discloses key behavioral traits: the tool analyzes, validates, and fixes configs; it returns errors and original config if invalid, and does nothing if valid. However, it misses details like rate limits, authentication needs, or whether 'fix' is automated or suggested, which are important for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is front-loaded with the purpose but includes redundant sections like 'Parameters:' that repeat schema info. The example and notes are helpful but could be more streamlined. Overall, it's adequately sized but has some inefficiencies in structure.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no annotations, no output schema, and 1 parameter with 0% schema coverage, the description provides basic completeness: purpose, param details, and output behavior. However, for a tool that 'fixes' configs (implying mutation), it lacks critical context like side effects, error handling specifics, or return format details, making it minimally adequate.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema description coverage is 0%, so the description must compensate. It adds significant meaning beyond the schema: it explains that 'configFile' is the raw YAML content as a string, not a file path, and provides an example with formatting notes. This clarifies usage effectively, though it could detail YAML structure or constraints more.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'analyze and validate and fix CircleCI configuration files.' It specifies the verb ('analyze, validate, fix') and resource ('CircleCI configuration files'), making the function unambiguous. However, it doesn't explicitly differentiate from sibling tools like 'run_pipeline' or 'rerun_workflow', which might involve config validation indirectly.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage context through the example and output instructions, suggesting this tool is for validating configs before execution. However, it lacks explicit guidance on when to use this versus alternatives (e.g., 'run_pipeline' might handle validation internally) or any prerequisites, leaving some ambiguity for the agent.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

create_prompt_templateA

ABOUT THIS TOOL:

  • This tool is part of a toolchain that generates and provides test cases for a prompt template.

  • This tool helps an AI assistant to generate a prompt template based on one of the following:

    1. feature requirements defined by a user - in which case the tool will generate a new prompt template based on the feature requirements.

    2. a pre-existing prompt or prompt template that a user wants to test, evaluate, or modify - in which case the tool will convert it into a more structured and testable prompt template while leaving the original prompt language relatively unchanged.

  • This tool will return a structured prompt template (e.g. template) along with a context schema (e.g. contextSchema) that defines the expected input parameters for the prompt template.

  • In some cases, a user will want to add test coverage for ALL of the prompts in a given application. In these cases, the AI agent should use this tool to generate a prompt template for each prompt in the application, and should check the entire application for AI prompts that are not already covered by a prompt template in the ./prompts directory.

WHEN SHOULD THIS TOOL BE TRIGGERED?

  • This tool should be triggered whenever the user provides requirements for a new AI-enabled application or a new AI-enabled feature of an existing application (i.e. one that requires a prompt request to an LLM or any AI model).

  • This tool should also be triggered if the user provides a pre-existing prompt or prompt template from their codebase that they want to test, evaluate, or modify.

  • This tool should be triggered even if there are pre-existing files in the ./prompts directory with the <relevant-name>.prompt.yml convention (e.g. bedtime-story-generator.prompt.yml, plant-care-assistant.prompt.yml, customer-support-chatbot.prompt.yml, etc.). Similar files should NEVER be generated directly by the AI agent. Instead, the AI agent should use this tool to first generate a new prompt template.

PARAMETERS:

  • params: object

    • prompt: string (the feature requirements or pre-existing prompt/prompt template that will be used to generate a prompt template. Can be a multi-line string.)

    • promptOrigin: "codebase" | "requirements" (indicates whether the prompt comes from an existing codebase or from new requirements)

    • model: string (the model that the prompt template will be tested against. Explicitly specify the model if it can be inferred from the codebase. Otherwise, defaults to gpt-4.1-mini.)

    • temperature: number (the temperature of the prompt template. Explicitly specify the temperature if it can be inferred from the codebase. Otherwise, defaults to 1.)

EXAMPLE USAGE (from new requirements): { "params": { "prompt": "Create an app that takes any topic and an age (in years), then renders a 1-minute bedtime story for a person of that age.", "promptOrigin": "requirements" "model": "gpt-4.1-mini" "temperature": 1.0 } }

EXAMPLE USAGE (from pre-existing prompt/prompt template in codebase): { "params": { "prompt": "The user wants a bedtime story about {{topic}} for a person of age {{age}} years old. Please craft a captivating tale that captivates their imagination and provides a delightful bedtime experience.", "promptOrigin": "codebase" "model": "claude-3-5-sonnet-latest" "temperature": 0.7 } }

TOOL OUTPUT INSTRUCTIONS:

  • The tool will return...

    • a template that reformulates the user's prompt into a more structured format.

    • a contextSchema that defines the expected input parameters for the template.

    • a promptOrigin that indicates whether the prompt comes from an existing prompt or prompt template in the user's codebase or from new requirements.

  • The tool output -- the template, contextSchema, and promptOrigin -- will also be used as input to the recommend_prompt_template_tests tool to generate a list of recommended tests that can be used to test the prompt template.

ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.4/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden and does well. It explains the tool's role in a toolchain, describes the transformation process (converting to structured format), specifies output components (template, contextSchema, promptOrigin), and mentions downstream usage with 'recommend_prompt_template_tests'. However, it doesn't address potential limitations like error conditions or processing constraints.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (ABOUT, WHEN, PARAMETERS, EXAMPLES, OUTPUT), but it's verbose with some redundancy. Sentences like 'This tool will return a structured prompt template...' could be more concise. While organized, it could be tightened without losing clarity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no annotations, 0% schema coverage, no output schema, and moderate complexity, the description does well. It explains the tool's purpose, usage, parameters, examples, and output format. However, it doesn't fully address error handling, validation rules, or what happens with malformed inputs, leaving some gaps for a tool with significant transformation responsibility.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must compensate. It provides a dedicated PARAMETERS section explaining each parameter's purpose, including the distinction between 'codebase' and 'requirements' origins, default values for model/temperature, and usage examples. This adds substantial value beyond the bare schema, though it doesn't fully explain all edge cases for parameter values.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'generate a prompt template based on feature requirements or pre-existing prompts.' It specifies the exact action (generate), resource (prompt template), and distinguishes between two distinct input scenarios. This is specific and unambiguous, with no sibling tools performing similar functions.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description explicitly states when to trigger the tool: for new AI application/feature requirements OR for pre-existing prompts from codebases. It also provides exclusion guidance: 'Similar files should NEVER be generated directly by the AI agent' and specifies to use this tool even when prompt files already exist. This gives clear when/when-not/alternative guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

download_usage_api_dataA
⚠️ **MANDATORY: The handler will REJECT any call that does not include BOTH outputDir and originalUserMessage. These parameters are REQUIRED for all tool calls.**

⚠️ **MANDATORY OUTPUT DIRECTORY SELECTION FOR AI AGENTS:**
1. If the project root (workspace root) is available (e.g., via `workspaceRoot` or known repository context), you MUST pass it as the `outputDir` parameter.
2. If the project root is not available, you MUST use the user's Downloads folder (e.g., `~/Downloads` or `%USERPROFILE%\Downloads`) as the `outputDir` parameter.
3. Only if neither is available, use the current working directory (`process.cwd()`).
4. **Never omit the `outputDir` parameter. Always make the output location explicit.**
5. **Omitting `outputDir` is a critical error. Tool calls without `outputDir` may be rejected or flagged as incorrect. Repeated violations may be treated as a bug in the AI agent.**
6. **AI agents MUST validate their tool calls to ensure `outputDir` is present before execution.**

Downloads usage data from the CircleCI Usage API for a given organization and date range.
This tool both starts the export job and downloads the resulting CSV file when ready.
Required parameters: orgId, startDate, endDate, outputDir.

**outputDir (required):**
The directory where the usage data CSV will be saved.
- You MUST provide `outputDir` for every tool call.
- The file will be saved in the specified directory.
- Omitting `outputDir` will result in an error.

**Directory Selection Instructions for AI Agents:**
- If the project root is available (e.g., via `workspaceRoot`, `outputDir`, or known repository context), always use it as the output directory for file outputs.
- If no project root is available (e.g., running in the user's home directory or a generic environment), use the user's Downloads folder (e.g., `~/Downloads` or `%USERPROFILE%\Downloads`)
- If neither is available, fall back to the current working directory.
- Never place output files in a location that is hard to discover for the user.
- **Always double-check that `outputDir` is present in your tool call.**
- **Always double-check that `originalUserMessage` is present in your tool call.**

This ensures that downloaded usage data is always saved in a location that is relevant and easy for the user to find, and that the output is always copy-paste friendly for status checks, regardless of the environment in which the tool is run.
ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.8/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Since no annotations are provided, the description carries the full burden of behavioral disclosure. It does this exceptionally well by describing: 1) The tool's two-phase operation (starts export job AND downloads CSV when ready), 2) Mandatory parameter requirements with consequences for omission (rejection, errors), 3) Directory selection logic with fallback hierarchy, 4) File output behavior (CSV saved to specified directory), and 5) Validation requirements for AI agents. This provides comprehensive behavioral context beyond what the schema alone offers.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately front-loaded with the core purpose, but contains significant repetition about outputDir requirements and directory selection rules. While all content is valuable, it could be more efficiently organized. The multiple warnings and repeated instructions about outputDir, while important, make the description longer than necessary. Every sentence earns its place, but the structure could be more streamlined.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the complexity of the tool (two-phase operation, mandatory parameters, file output) and the complete lack of annotations and output schema, the description provides comprehensive context. It covers: purpose, usage requirements, behavioral workflow, parameter semantics, error conditions, and practical implementation guidance for AI agents. The description fully compensates for the absence of structured metadata, making the tool's behavior and requirements completely understandable.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 0% schema description coverage (schema has no descriptions), the description must fully compensate, which it does excellently. It provides detailed semantic information for outputDir including: why it's required, directory selection rules, consequences of omission, and practical guidance for AI agents. It also clarifies the purpose of orgId, startDate, and endDate, and explains the relationship between jobId and subsequent calls. The description adds substantial value beyond the bare schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Downloads usage data from the CircleCI Usage API for a given organization and date range. This tool both starts the export job and downloads the resulting CSV file when ready.' This specifies the exact action (downloads usage data), resource (CircleCI Usage API), and scope (organization and date range). It distinguishes itself from sibling tools by focusing specifically on usage data export and download.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit guidance on when to use this tool: for downloading usage data from CircleCI. It also includes detailed mandatory requirements for usage: 'The handler will REJECT any call that does not include BOTH outputDir and originalUserMessage' and provides specific directory selection rules. The description clearly states what parameters are required and when they should be used.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

find_flaky_testsA
This tool retrieves information about flaky tests in a CircleCI project. 

The agent receiving this output MUST analyze the flaky test data and implement appropriate fixes based on the specific issues identified.

CRITICAL REQUIREMENTS:
1. Truncation Handling (HIGHEST PRIORITY):
   - ALWAYS check for <MCPTruncationWarning> in the output
   - When present, you MUST start your response with:
     "WARNING: The logs have been truncated. Only showing the most recent entries. Earlier build failures may not be visible."
   - Only proceed with log analysis after acknowledging the truncation

Input options (EXACTLY ONE of these THREE options must be used):

Option 1 - Project Slug:
- projectSlug: The project slug obtained from listFollowedProjects tool (e.g., "gh/organization/project")

Option 2 - Direct URL (provide ONE of these):
- projectURL: The URL of the CircleCI project in any of these formats:
  * Project URL: https://app.circleci.com/pipelines/gh/organization/project
  * Pipeline URL: https://app.circleci.com/pipelines/gh/organization/project/123
  * Workflow URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def
  * Job URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def/jobs/xyz

Option 3 - Project Detection (ALL of these must be provided together):
- workspaceRoot: The absolute path to the workspace root
- gitRemoteURL: The URL of the git remote repository

Additional Requirements:
- Never call this tool with incomplete parameters
- If using Option 1, make sure to extract the projectSlug exactly as provided by listFollowedProjects
- If using Option 2, the URLs MUST be provided by the user - do not attempt to construct or guess URLs
- If using Option 3, BOTH parameters (workspaceRoot, gitRemoteURL) must be provided
- If none of the options can be fully satisfied, ask the user for the missing information before making the tool call
ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.3/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively describes several behavioral traits: the tool's output may be truncated (with specific handling instructions), it requires exactly one of three parameter sets, and it has strict validation requirements for each parameter option. However, it doesn't mention authentication needs, rate limits, or what happens when flaky tests are found (beyond stating the agent should 'implement appropriate fixes').

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately front-loaded with the core purpose, but contains significant redundancy and instructional content that extends beyond tool description. The 'CRITICAL REQUIREMENTS' section includes agent instructions about output handling that belong in a different context. While well-structured with clear sections, it's verbose (over 400 words) with some sentences that don't directly describe the tool's behavior or parameters.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the complexity (multiple parameter patterns, no annotations, no output schema), the description provides substantial context about parameter usage, validation rules, and output handling. It adequately covers the tool's operational context despite the lack of structured metadata. However, it doesn't explain what format the flaky test information returns in or what specific data fields are available, which would be helpful given the absence of an output schema.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 0% schema description coverage (the schema provides only basic parameter names without meaningful descriptions), the description comprehensively compensates by explaining all four parameters in detail. It clarifies the three mutually exclusive usage patterns, provides specific format examples for each parameter, explains relationships between parameters (e.g., Option 3 requires BOTH workspaceRoot and gitRemoteURL), and gives practical guidance on parameter sourcing and validation.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool 'retrieves information about flaky tests in a CircleCI project', providing a specific verb ('retrieves') and resource ('flaky tests'). It distinguishes from sibling tools like 'get_job_test_results' or 'get_build_failure_logs' by focusing specifically on flaky tests rather than general test results or failure logs. However, it doesn't explicitly contrast with these siblings in the description text.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides extensive, explicit guidance on when and how to use this tool through the 'CRITICAL REQUIREMENTS' and 'Input options' sections. It specifies three mutually exclusive parameter options with clear conditions ('EXACTLY ONE of these THREE options must be used'), includes prerequisites ('If using Option 1, make sure to extract the projectSlug exactly as provided by listFollowedProjects'), and gives explicit fallback instructions ('If none of the options can be fully satisfied, ask the user for the missing information before making the tool call').

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

find_underused_resource_classesA
Analyzes a CircleCI usage data CSV file to find jobs/resource classes with average or max CPU/RAM usage below a given threshold (default 40%).
This helps identify underused resource classes that may be oversized for their workload.

Required parameter:
- csvFilePath: Path to the usage data CSV file (string). IMPORTANT: This must be an absolute path. If you are given a relative path, you must resolve it to an absolute path before calling this tool.

Optional parameter:
- threshold: Usage percentage threshold (number, default 40)

The tool expects the CSV to have columns: job_name, resource_class, median_cpu_utilization_pct, max_cpu_utilization_pct, median_ram_utilization_pct, max_ram_utilization_pct (case-insensitive). These required columns are a subset of the columns in the CircleCI usage API output and the tool will work with the full set of columns from the usage API CSV.
It returns a summary report listing all jobs/resource classes where any of these metrics is below the threshold.
ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.5/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden and adds valuable behavioral context. It discloses that the tool expects specific CSV columns (job_name, resource_class, etc.), works with a subset of CircleCI usage API output, and returns a summary report. It also notes that the CSV path must be absolute and provides a default threshold. However, it doesn't mention error handling, performance, or output format details, leaving some gaps.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized and front-loaded: it starts with the core purpose, then details parameters and CSV requirements. Each sentence adds value—none are redundant. It uses bullet-like formatting for parameters and clear explanations without waste, making it easy to scan and understand.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (analyzing CSV data with specific columns), no annotations, no output schema, and 0% schema coverage, the description is largely complete. It covers purpose, parameters, CSV expectations, and output type ('summary report'). However, it doesn't detail the report's structure or potential errors, which could help an agent use it more effectively.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description adds significant meaning beyond the input schema, which has 0% description coverage. It explains that 'csvFilePath' must be an absolute path and requires resolution if relative, and that 'threshold' is a usage percentage with default 40. It also clarifies the CSV column expectations and how the tool processes them. This fully compensates for the schema's lack of descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Analyzes a CircleCI usage data CSV file to find jobs/resource classes with average or max CPU/RAM usage below a given threshold.' It specifies the verb ('analyzes'), resource ('CircleCI usage data CSV file'), and outcome ('find jobs/resource classes with usage below threshold'). It distinguishes from siblings by focusing on underused resource analysis rather than other CircleCI operations like downloading data or running pipelines.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context for when to use this tool: to identify underused resource classes from CSV data. It implies usage with CircleCI usage API output. However, it does not explicitly state when not to use it or name alternatives among sibling tools (e.g., 'download_usage_api_data' for obtaining the CSV). The guidance is practical but lacks explicit exclusions or comparisons.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_build_failure_logsA
This tool helps debug CircleCI build failures by retrieving failure logs.

CRITICAL REQUIREMENTS:
1. Truncation Handling (HIGHEST PRIORITY):
   - ALWAYS check for <MCPTruncationWarning> in the output
   - When present, you MUST start your response with:
     "WARNING: The logs have been truncated. Only showing the most recent entries. Earlier build failures may not be visible."
   - Only proceed with log analysis after acknowledging the truncation

Input options (EXACTLY ONE of these THREE options must be used):

Option 1 - Project Slug and branch (BOTH required):
- projectSlug: The project slug obtained from listFollowedProjects tool (e.g., "gh/organization/project")
- branch: The name of the branch (required when using projectSlug)

Option 2 - Direct URL (provide ONE of these):
- projectURL: The URL of the CircleCI project in any of these formats:
  * Project URL: https://app.circleci.com/pipelines/gh/organization/project
  * Pipeline URL: https://app.circleci.com/pipelines/gh/organization/project/123
  * Legacy Job URL: https://circleci.com/pipelines/gh/organization/project/123
  * Workflow URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def
  * Job URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def/jobs/xyz

Option 3 - Project Detection (ALL of these must be provided together):
- workspaceRoot: The absolute path to the workspace root
- gitRemoteURL: The URL of the git remote repository
- branch: The name of the current branch

Recommended Workflow:
1. Use listFollowedProjects tool to get a list of projects
2. Extract the projectSlug from the chosen project (format: "gh/organization/project")
3. Use that projectSlug with a branch name for this tool

Additional Requirements:
- Never call this tool with incomplete parameters
- If using Option 1, make sure to extract the projectSlug exactly as provided by listFollowedProjects
- If using Option 2, the URLs MUST be provided by the user - do not attempt to construct or guess URLs
- If using Option 3, ALL THREE parameters (workspaceRoot, gitRemoteURL, branch) must be provided
- If none of the options can be fully satisfied, ask the user for the missing information before making the tool call
ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.9/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure and does so comprehensively. It reveals critical behavioral traits including truncation handling requirements (checking for <MCPTruncationWarning>, required warning message), input validation rules (exactly one of three options, parameter completeness requirements), and workflow dependencies (recommends using listFollowedProjects first). This goes well beyond what a basic description would provide.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (CRITICAL REQUIREMENTS, Input options, Recommended Workflow, Additional Requirements) but is quite lengthy. While every sentence earns its place by providing essential guidance, the front-loading could be improved - the core purpose appears early, but critical behavioral details are buried in later sections. The structure helps navigation but the length reduces conciseness.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (multiple input options, truncation handling, workflow dependencies) and the absence of both annotations and output schema, the description provides complete contextual information. It covers purpose, usage scenarios, parameter semantics, behavioral constraints, error handling, and integration with other tools. No additional information would be needed for an agent to use this tool correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Despite having 0% schema description coverage (the schema has descriptions but they're not counted in coverage), the description provides extensive parameter semantics that fully compensate. It explains the three distinct parameter options, their relationships (mutual exclusivity, required combinations), specific format requirements (e.g., projectSlug format from listFollowedProjects), and practical usage examples. This adds substantial meaning beyond the basic schema properties.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'retrieving failure logs' to 'debug CircleCI build failures'. It specifies the exact resource (failure logs) and verb (retrieve), and distinguishes it from siblings like get_job_test_results or get_latest_pipeline_status by focusing specifically on failure logs rather than test results or status.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit, detailed guidance on when and how to use this tool versus alternatives. It outlines three distinct input options with clear requirements, specifies that exactly one option must be used, and provides a recommended workflow starting with the listFollowedProjects tool. It also includes explicit exclusions ('Never call this tool with incomplete parameters') and prerequisites for each option.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_job_test_resultsA
This tool retrieves test metadata for a CircleCI job.

PRIORITY USE CASE:
- When asked "are tests passing in CI?" or similar questions about test status
- When asked to "fix failed tests in CI" or help with CI test failures
- Use this tool to check if tests are passing in CircleCI and identify failed tests

Common use cases:
- Get test metadata for a specific job
- Get test metadata for all jobs in a project
- Get test metadata for a specific branch
- Get test metadata for a specific pipeline
- Get test metadata for a specific workflow
- Get test metadata for a specific job

CRITICAL REQUIREMENTS:
1. Truncation Handling (HIGHEST PRIORITY):
   - ALWAYS check for <MCPTruncationWarning> in the output
   - When present, you MUST start your response with:
     "WARNING: The test results have been truncated. Only showing the most recent entries. Some test data may not be visible."
   - Only proceed with test result analysis after acknowledging the truncation

2. Test Result Filtering:
   - Use filterByTestsResult parameter to filter test results:
     * filterByTestsResult: 'failure' - Show only failed tests
     * filterByTestsResult: 'success' - Show only successful tests
   - When looking for failed tests, ALWAYS set filterByTestsResult to 'failure'
   - When checking if tests are passing, set filterByTestsResult to 'success'

Input options (EXACTLY ONE of these THREE options must be used):

Option 1 - Project Slug and branch (BOTH required):
- projectSlug: The project slug obtained from listFollowedProjects tool (e.g., "gh/organization/project")
- branch: The name of the branch (required when using projectSlug)

Option 2 - Direct URL (provide ONE of these):
- projectURL: The URL of the CircleCI job in any of these formats:
  * Job URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def/jobs/789
  * Workflow URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def
  * Pipeline URL: https://app.circleci.com/pipelines/gh/organization/project/123

Option 3 - Project Detection (ALL of these must be provided together):
- workspaceRoot: The absolute path to the workspace root
- gitRemoteURL: The URL of the git remote repository
- branch: The name of the current branch

For simple test status checks (e.g., "are tests passing in CI?") or fixing failed tests, prefer Option 1 with a recent pipeline URL if available.

Additional Requirements:
- Never call this tool with incomplete parameters
- If using Option 1, make sure to extract the projectSlug exactly as provided by listFollowedProjects and include the branch parameter
- If using Option 2, the URL MUST be provided by the user - do not attempt to construct or guess URLs
- If using Option 3, ALL THREE parameters (workspaceRoot, gitRemoteURL, branch) must be provided
- If none of the options can be fully satisfied, ask the user for the missing information before making the tool call
ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.5/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively describes critical behavioral traits: truncation handling with specific warning requirements, test result filtering logic, and strict parameter combination rules. However, it doesn't mention rate limits, authentication needs, or error handling, leaving some gaps for a tool with complex input requirements.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately front-loaded with purpose and priority use cases, but becomes verbose with repetitive sections like 'Get test metadata for...' listing and detailed parameter explanations that could be more streamlined. While all content is valuable, the structure could be more efficient given the length.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (multiple parameter options, no annotations, no output schema), the description does an excellent job covering input requirements and behavioral expectations. It explains truncation handling, filtering logic, and parameter combinations thoroughly. The main gap is lack of output format description, which would help agents interpret results.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must fully compensate. It provides comprehensive parameter semantics: explains three distinct input options with their required combinations, clarifies parameter purposes beyond schema names, and offers practical examples. The description adds significant value by organizing parameters into logical groups and explaining their relationships.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose with specific verb+resource: 'retrieves test metadata for a CircleCI job.' It distinguishes from siblings by focusing on test results rather than pipeline status, build logs, or other CI aspects. The title is null, so the description fully carries the purpose definition.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit guidance on when to use this tool with 'PRIORITY USE CASE' section listing specific scenarios like 'are tests passing in CI?' and 'fix failed tests in CI.' It also offers alternatives within the tool via parameter options and distinguishes from sibling tools by its test-focused nature versus general pipeline status or build logs.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_latest_pipeline_statusA
This tool retrieves the status of the latest pipeline for a CircleCI project. It can be used to check pipeline status, get latest build status, or view current pipeline state.

Common use cases:
- Check latest pipeline status
- Get current build status
- View pipeline state
- Check build progress
- Get pipeline information

Input options (EXACTLY ONE of these THREE options must be used):

Option 1 - Project Slug and branch (BOTH required):
- projectSlug: The project slug obtained from listFollowedProjects tool (e.g., "gh/organization/project")
- branch: The name of the branch (required when using projectSlug)

Option 2 - Direct URL (provide ONE of these):
- projectURL: The URL of the CircleCI project in any of these formats:
  * Project URL: https://app.circleci.com/pipelines/gh/organization/project
  * Pipeline URL: https://app.circleci.com/pipelines/gh/organization/project/123
  * Workflow URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def
  * Job URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def/jobs/xyz
  * Legacy Job URL: https://circleci.com/gh/organization/project/123

Option 3 - Project Detection (ALL of these must be provided together):
- workspaceRoot: The absolute path to the workspace root
- gitRemoteURL: The URL of the git remote repository
- branch: The name of the current branch

Recommended Workflow:
1. Use listFollowedProjects tool to get a list of projects
2. Extract the projectSlug from the chosen project (format: "gh/organization/project")
3. Use that projectSlug with a branch name for this tool

Additional Requirements:
- Never call this tool with incomplete parameters
- If using Option 1, make sure to extract the projectSlug exactly as provided by listFollowedProjects
- If using Option 2, the URLs MUST be provided by the user - do not attempt to construct or guess URLs
- If using Option 3, ALL THREE parameters (workspaceRoot, gitRemoteURL, branch) must be provided
- If none of the options can be fully satisfied, ask the user for the missing information before making the tool call
ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.5/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively describes the tool's behavior by detailing three distinct input options with specific requirements (e.g., 'EXACTLY ONE of these THREE options must be used'), constraints like 'ALL THREE parameters must be provided' for Option 3, and error-handling guidance ('ask the user for the missing information'). It lacks details on rate limits or authentication needs, but covers operational constraints well.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (purpose, use cases, input options, workflow, requirements), but it is verbose. Sentences like 'It can be used to check pipeline status, get latest build status, or view current pipeline state' are redundant with the opening statement. The 'Common use cases' list repeats similar ideas (e.g., 'Check latest pipeline status' and 'View pipeline state'), reducing efficiency. However, the structure aids readability.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the complexity (multiple input options, no annotations, no output schema), the description is largely complete. It thoroughly explains parameter usage, dependencies, and workflows. The main gap is the lack of information on return values (e.g., what status data is provided), which is significant since there's no output schema. Otherwise, it adequately covers the tool's operational context and constraints.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema description coverage is 0%, so the description must fully compensate. It adds significant meaning beyond the bare schema by explaining the three input options in detail, specifying exact parameter combinations (e.g., 'Option 1 - Project Slug and branch (BOTH required)'), providing examples for each parameter, and clarifying interdependencies and usage rules. This transforms the schema from a simple list into actionable guidance.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'retrieves the status of the latest pipeline for a CircleCI project.' It specifies the verb ('retrieves'), resource ('latest pipeline'), and scope ('CircleCI project'), distinguishing it from siblings like 'run_pipeline' (executes) or 'get_build_failure_logs' (focuses on logs).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit guidance on when to use this tool versus alternatives. It includes a 'Recommended Workflow' section directing users to first use 'listFollowedProjects' to obtain a projectSlug, and it lists 'Common use cases' like checking pipeline status or build progress. It also specifies when not to use it (e.g., 'Never call this tool with incomplete parameters').

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

list_component_versionsA
 This tool lists all versions for a CircleCI component. It guides you through a multi-step process to gather the required information and provides lists of available options when parameters are missing.

 **Initial Requirements:**
 - You need either a `projectSlug` (from `listFollowedProjects`) or a `projectID`. The tool will automatically resolve the `orgID` from either of these.

 **Typical Flow:**
 1. **Start:** User requests component versions or deployment information.
 2. **Project Information:** Provide either `projectSlug` or `projectID`. The tool will automatically resolve the `orgID` and `projectID` as needed.
 3. **Environment Selection:** If `environmentID` is not provided, the tool will list all available environments for the organization and prompt the user to select one. Always return all available values without categorizing them.
 4. **Component Selection:** If `componentID` is not provided, the tool will list all available components for the project and prompt the user to select one. Always return all available values without categorizing them.
 5. **Version Listing:** Once both `environmentID` and `componentID` are provided, the tool will list all versions for that component in the specified environment.
 6. **Selection:** User selects a version from the list for subsequent operations.

 **Parameters:**
 - `projectSlug` (optional): The project slug from `listFollowedProjects` (e.g., "gh/organization/project"). Either this or `projectID` must be provided.
 - `projectID` (optional): The CircleCI project ID (UUID). Either this or `projectSlug` must be provided.
 - `orgID` (optional): The organization ID. If not provided, it will be automatically resolved from `projectSlug` or `projectID`.
 - `environmentID` (optional): The environment ID. If not provided, available environments will be listed.
 - `componentID` (optional): The component ID. If not provided, available components will be listed.

 **Behavior:**
 - The tool will guide you through the selection process step by step.
 - Automatically resolves `orgID` from `projectSlug` or `projectID` when needed.
 - When `environmentID` is missing, it lists environments and waits for user selection.
 - When `componentID` is missing (but `environmentID` is provided), it lists components and waits for user selection.
 - Only when both `environmentID` and `componentID` are provided will it list the actual component versions.
 - Make multiple calls to this tool as you gather the required parameters.

 **Common Use Cases:**
 - Identify which versions were deployed for a component
 - Identify which versions are live for a component
 - Identify which versions were deployed to an environment for a component
 - Identify which versions are not live for a component in an environment
 - Select a version for rollback or deployment operations
 - Obtain version name, namespace, and environment details for other CircleCI tools

 **Returns:**
 - When missing `environmentID`: A list of available environments with their IDs
 - When missing `componentID`: A list of available components with their IDs  
 - When both `environmentID` and `componentID` provided: A list of component versions with version name, namespace, environment ID, and is_live status

 **Important Notes:**
 - This tool requires multiple calls to gather all necessary information.
 - Either `projectSlug` or `projectID` must be provided; the tool will resolve the missing project information automatically.
 - The tool will prompt for missing `environmentID` and `componentID` by providing selection lists.
 - Always use the exact IDs returned by the tool in subsequent calls.
 - If pagination limits are reached, the tool will indicate that not all items could be displayed.

 **IMPORTANT:** Do not automatically run additional tools after this tool is called. Wait for explicit user instruction before executing further tool calls. The LLM MUST NOT invoke other CircleCI tools until receiving clear instruction from the user about what to do next, even if the user selects an option. It is acceptable to list out tool call options for the user to choose from, but do not execute them until instructed.
 
ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.8/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It thoroughly explains the tool's interactive behavior: guiding through multi-step selection, automatically resolving orgID, listing options when parameters are missing, requiring multiple calls, and handling pagination limits. It also includes important notes about not automatically running additional tools.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is comprehensive but lengthy with repetitive sections (e.g., parameters and behavior sections overlap). While well-structured with headings, it could be more concise by eliminating redundancy. Every sentence adds value, but some information is repeated across sections.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a complex tool with no annotations, no output schema, and 0% schema coverage, the description is exceptionally complete. It covers purpose, usage flow, parameters, behavior, return values for different scenarios, common use cases, and important operational notes. Nothing essential appears missing given the tool's complexity.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Given 0% schema description coverage (schema has no descriptions for parameters), the description fully compensates by explaining each parameter's purpose, optionality, and how they interact (e.g., projectSlug vs projectID, automatic orgID resolution). It adds crucial context about parameter dependencies and the tool's response behavior based on which parameters are provided.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'lists all versions for a CircleCI component.' It specifies the resource (component versions) and distinguishes it from siblings like list_followed_projects by focusing on component version listing rather than project listing or other operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit guidance on when to use this tool, including initial requirements (projectSlug or projectID), typical flow steps, and common use cases such as identifying deployed versions or selecting versions for rollback. It distinguishes this from other tools by detailing its multi-step parameter-gathering process.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

list_followed_projectsA
This tool lists all projects that the user is following on CircleCI.

Common use cases:
- Identify which CircleCI projects are available to the user
- Select a project for subsequent operations
- Obtain the projectSlug needed for other CircleCI tools

Returns:
- A list of projects that the user is following on CircleCI
- Each entry includes the project name and its projectSlug

Workflow:
1. Run this tool to see available projects
2. User selects a project from the list
3. The LLM should extract and use the projectSlug (not the project name) from the selected project for subsequent tool calls
4. The projectSlug is required for many other CircleCI tools, and will be used for those tool calls after a project is selected

Note: If pagination limits are reached, the tool will indicate that not all projects could be displayed.

IMPORTANT: Do not automatically run any additional tools after this tool is called. Wait for explicit user instruction before executing further tool calls. The LLM MUST NOT invoke any other CircleCI tools until receiving a clear instruction from the user about what to do next, even if the user selects a project. It is acceptable to list out tool call options for the user to choose from, but do not execute them until instructed.
ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.5/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively describes key behaviors: it's a read-only listing operation (implied by 'lists'), discloses pagination limits ('If pagination limits are reached, the tool will indicate that not all projects could be displayed'), and specifies the return format ('Each entry includes the project name and its projectSlug'). However, it doesn't mention authentication requirements or rate limits, which would be helpful for a complete behavioral picture.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately front-loaded with the core purpose, but contains some redundancy (e.g., 'Returns' section repeats what's in the initial description, and the workflow section could be more concise). The 'IMPORTANT' warning about not automatically running tools is valuable but lengthy. Overall, it's comprehensive but could be more tightly structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity (0 parameters, no annotations, no output schema), the description provides complete contextual information. It explains what the tool does, when to use it, what it returns, workflow guidance, and important behavioral constraints. For a listing tool with no complex inputs or outputs, this description covers all necessary context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 0 parameters (empty object), so there are no parameters to document. The description appropriately doesn't discuss parameters, focusing instead on the tool's purpose and usage. With no parameters to cover, this exceeds the baseline expectation for parameter documentation.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific action ('lists all projects that the user is following') and resource ('on CircleCI'), distinguishing it from siblings like 'run_pipeline' or 'get_latest_pipeline_status' which perform different operations. It goes beyond just restating the name by specifying the scope (user's followed projects).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit guidance on when to use this tool ('Identify which CircleCI projects are available to the user', 'Select a project for subsequent operations', 'Obtain the projectSlug needed for other CircleCI tools') and includes a detailed workflow section. It also explicitly states when NOT to use it automatically ('Do not automatically run any additional tools after this tool is called'), addressing alternatives by requiring explicit user instruction for subsequent actions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

recommend_prompt_template_testsB

About this tool:

  • This tool is part of a toolchain that generates and provides test cases for a prompt template.

  • This tool generates an array of recommended tests for a given prompt template.

Parameters:

  • params: object

    • promptTemplate: string (the prompt template to be tested)

    • contextSchema: object (the context schema that defines the expected input parameters for the prompt template)

    • promptOrigin: "codebase" | "requirements" (indicates whether the prompt comes from an existing codebase or from new requirements)

    • model: string (the model that the prompt template will be tested against)

Example usage: { "params": { "promptTemplate": "The user wants a bedtime story about {{topic}} for a person of age {{age}} years old. Please craft a captivating tale that captivates their imagination and provides a delightful bedtime experience.", "contextSchema": { "topic": "string", "age": "number" }, "promptOrigin": "codebase" } }

The tool will return a structured array of test cases that can be used to test the prompt template.

Tool output instructions: - The tool will return a recommendedTests array that can be used to test the prompt template.

ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

B3.3/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. It describes the tool's function and output format ('structured array of test cases'), but lacks details on permissions, rate limits, side effects, or error handling. For a tool with no annotations, this leaves significant gaps in understanding its operational behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (About, Parameters, Example usage, Tool output instructions) and front-loaded key information. It's appropriately sized for the tool's complexity, though some sentences could be more concise (e.g., the example usage is detailed but necessary). Overall, it's efficient with minimal waste.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (1 parameter with nested objects), no annotations, and no output schema, the description provides a good foundation but has gaps. It explains the purpose, parameters, and output format, but lacks details on behavioral traits, error cases, and doesn't fully cover all schema parameters (e.g., temperature). It's adequate but not fully complete for safe and effective use.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description provides a 'Parameters' section that lists and briefly explains each parameter (promptTemplate, contextSchema, promptOrigin, model), adding meaning beyond the input schema. Since schema description coverage is 0%, the description compensates well by documenting the parameters, though it doesn't cover all schema parameters (e.g., temperature is omitted). The value added is substantial but not complete.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'generates an array of recommended tests for a given prompt template.' It specifies the verb ('generates') and resource ('recommended tests'), though it doesn't explicitly differentiate from sibling tools like 'run_evaluation_tests' or 'find_flaky_tests' which might also involve testing. The purpose is clear but lacks sibling differentiation.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage context by mentioning it's 'part of a toolchain that generates and provides test cases for a prompt template,' suggesting it should be used in a testing workflow. However, it doesn't explicitly state when to use this tool versus alternatives like 'run_evaluation_tests' or provide clear exclusions. The guidance is implied but not explicit.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

rerun_workflowA

This tool is used to rerun a workflow from start or from the failed job.

Common use cases:

  • Rerun a workflow from a failed job

  • Rerun a workflow from start

Input options (EXACTLY ONE of these TWO options must be used):

Option 1 - Workflow ID:

  • workflowId: The ID of the workflow to rerun

  • fromFailed: true to rerun from failed, false to rerun from start. If omitted, behavior is based on workflow status. (optional)

Option 2 - Workflow URL:

ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It explains the rerun behavior (from start or from failed) and the conditional logic when 'fromFailed' is omitted. However, it doesn't cover important aspects like authentication requirements, rate limits, error handling, or what happens to the original workflow. The description adds some behavioral context but leaves significant gaps.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured and efficiently organized. It starts with a clear purpose statement, lists common use cases, then presents input options in a logical format with bullet points. Every sentence serves a purpose - there's no wasted text. The information is front-loaded and easy to parse.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (mutating operation with conditional logic) and the lack of both annotations and output schema, the description should do more. While it covers parameters well, it doesn't explain what the tool returns, error conditions, or system behavior during execution. For a mutation tool with no structured safety information, this leaves important gaps for an AI agent.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema description coverage is 0%, so the description must fully compensate. It does this excellently by explaining the two input options (Workflow ID vs Workflow URL), the exclusive nature of these options ('EXACTLY ONE'), and the conditional behavior of the 'fromFailed' parameter. The description provides crucial semantic information that the schema lacks, including URL format examples and usage rules.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'rerun a workflow from start or from the failed job.' It specifies the verb ('rerun') and resource ('workflow'), but doesn't explicitly differentiate from sibling tools like 'run_pipeline' or 'run_rollback_pipeline' that might have overlapping functionality. The description is specific about what the tool does but lacks sibling comparison.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context for when to use the tool: 'Common use cases: - Rerun a workflow from a failed job - Rerun a workflow from start.' It gives practical scenarios but doesn't explicitly state when NOT to use it or mention alternatives among sibling tools. The guidance is helpful but could be more comprehensive regarding exclusions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

run_evaluation_testsA
This tool allows the users to run evaluation tests on a circleci pipeline.
They can be referred to as "Prompt Tests" or "Evaluation Tests".

This tool triggers a new CircleCI pipeline and returns the URL to monitor its progress.
The tool will generate an appropriate circleci configuration file and trigger a pipeline using this temporary configuration.
The tool will return the project slug.

Input options (EXACTLY ONE of these THREE options must be used):

Option 1 - Project Slug and branch (BOTH required):
- projectSlug: The project slug obtained from listFollowedProjects tool (e.g., "gh/organization/project")
- branch: The name of the branch (required when using projectSlug)

Option 2 - Direct URL (provide ONE of these):
- projectURL: The URL of the CircleCI project in any of these formats:
  * Project URL with branch: https://app.circleci.com/pipelines/gh/organization/project?branch=feature-branch
  * Pipeline URL: https://app.circleci.com/pipelines/gh/organization/project/123
  * Workflow URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def
  * Job URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def/jobs/xyz

Option 3 - Project Detection (ALL of these must be provided together):
- workspaceRoot: The absolute path to the workspace root
- gitRemoteURL: The URL of the git remote repository
- branch: The name of the current branch

Test Files:
- promptFiles: Array of prompt template file objects from the ./prompts directory, each containing:
  * fileName: The name of the prompt template file
  * fileContent: The contents of the prompt template file

Pipeline Selection:
- If the project has multiple pipeline definitions, the tool will return a list of available pipelines
- You must then make another call with the chosen pipeline name using the pipelineChoiceName parameter
- The pipelineChoiceName must exactly match one of the pipeline names returned by the tool
- If the project has only one pipeline definition, pipelineChoiceName is not needed

Additional Requirements:
- Never call this tool with incomplete parameters
- If using Option 1, make sure to extract the projectSlug exactly as provided by listFollowedProjects
- If using Option 2, the URLs MUST be provided by the user - do not attempt to construct or guess URLs
- If using Option 3, ALL THREE parameters (workspaceRoot, gitRemoteURL, branch) must be provided
- If none of the options can be fully satisfied, ask the user for the missing information before making the tool call

Returns:
- A URL to the newly triggered pipeline that can be used to monitor its progress
ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.5/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden and does well. It discloses key behaviors: generates temporary configuration files, may return a list of pipelines for selection, requires follow-up calls with pipelineChoiceName when multiple pipelines exist, and returns a URL for monitoring. It doesn't mention rate limits or authentication requirements, but covers most operational aspects.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (Input options, Test Files, Pipeline Selection, Additional Requirements, Returns), but is quite lengthy. While most sentences earn their place by providing necessary guidance, some redundancy exists (e.g., repeating URL formats in both Option 2 and projectURL description). It could be more front-loaded.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (multiple input options, conditional pipeline selection, no annotations, no output schema), the description is mostly complete. It explains what the tool does, how to use it, and what it returns. The main gap is lack of error handling details or what happens when tests fail, but overall it provides sufficient context for an agent to use the tool correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description adds substantial value beyond the input schema, which has 0% description coverage. It explains the three input options in detail, clarifies mutual exclusivity ('EXACTLY ONE of these THREE options'), provides format examples for URLs, and explains the pipeline selection logic. This compensates fully for the schema's lack of descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'run evaluation tests on a circleci pipeline' and specifies it 'triggers a new CircleCI pipeline and returns the URL to monitor its progress.' It distinguishes from siblings like 'run_pipeline' by focusing specifically on evaluation/prompt tests, not general pipeline execution.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit usage guidelines with three distinct input options and clear conditions for each. It includes when-not-to-use guidance: 'Never call this tool with incomplete parameters' and 'If none of the options can be fully satisfied, ask the user for the missing information.' It also references sibling tool 'listFollowedProjects' for obtaining projectSlug.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

run_pipelineA
This tool triggers a new CircleCI pipeline and returns the URL to monitor its progress.

Input options (EXACTLY ONE of these THREE options must be used):

Option 1 - Project Slug and branch (BOTH required):
- projectSlug: The project slug obtained from listFollowedProjects tool (e.g., "gh/organization/project")
- branch: The name of the branch (required when using projectSlug)

Option 2 - Direct URL (provide ONE of these):
- projectURL: The URL of the CircleCI project in any of these formats:
  * Project URL with branch: https://app.circleci.com/pipelines/gh/organization/project?branch=feature-branch
  * Pipeline URL: https://app.circleci.com/pipelines/gh/organization/project/123
  * Workflow URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def
  * Job URL: https://app.circleci.com/pipelines/gh/organization/project/123/workflows/abc-def/jobs/xyz

Option 3 - Project Detection (ALL of these must be provided together):
- workspaceRoot: The absolute path to the workspace root
- gitRemoteURL: The URL of the git remote repository
- branch: The name of the current branch

Configuration:
- an optional configContent parameter can be provided to override the default pipeline configuration

Pipeline Selection:
- If the project has multiple pipeline definitions, the tool will return a list of available pipelines
- You must then make another call with the chosen pipeline name using the pipelineChoiceName parameter
- The pipelineChoiceName must exactly match one of the pipeline names returned by the tool
- If the project has only one pipeline definition, pipelineChoiceName is not needed

Additional Requirements:
- Never call this tool with incomplete parameters
- If using Option 1, make sure to extract the projectSlug exactly as provided by listFollowedProjects
- If using Option 2, the URLs MUST be provided by the user - do not attempt to construct or guess URLs
- If using Option 3, ALL THREE parameters (workspaceRoot, gitRemoteURL, branch) must be provided
- If none of the options can be fully satisfied, ask the user for the missing information before making the tool call

Returns:
- A URL to the newly triggered pipeline that can be used to monitor its progress
ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.7/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden and does an excellent job disclosing behavioral traits: it explains the multi-step pipeline selection process, clarifies that URLs must be user-provided (not constructed), describes the return value format, and specifies parameter interdependencies. It doesn't mention rate limits or authentication requirements, but provides substantial operational context.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (Input options, Configuration, Pipeline Selection, Additional Requirements, Returns) and front-loads the core purpose. While comprehensive, some sentences could be more concise (e.g., the URL format list is detailed but necessary). Every sentence adds value given the complex parameter interactions.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a complex tool with 7 parameters, 0% schema coverage, no annotations, and no output schema, the description provides exceptional completeness. It covers all usage scenarios, parameter interdependencies, behavioral workflows (multi-step pipeline selection), return values, and error prevention guidance. Nothing essential appears missing for agent understanding.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 0% schema description coverage, the description fully compensates by providing rich semantic context for all parameters. It explains the three distinct usage patterns, clarifies parameter relationships (mutual exclusivity, required groupings), provides concrete examples for URL formats, and explains conditional parameter usage (pipelineChoiceName only needed for multiple pipelines).

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific action ('triggers a new CircleCI pipeline') and outcome ('returns the URL to monitor its progress'). It distinguishes this tool from siblings like 'get_latest_pipeline_status' (monitoring) and 'rerun_workflow' (re-running existing workflows) by focusing on initiating new pipelines.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit guidance on when to use this tool vs alternatives, including detailed instructions for three distinct parameter options with clear requirements ('EXACTLY ONE of these THREE options must be used'), prerequisites ('Never call this tool with incomplete parameters'), and fallback actions ('ask the user for the missing information before making the tool call').

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

run_rollback_pipelineA
Run a rollback pipeline for a CircleCI project. This tool guides you through the full rollback process, adapting to the information you provide and prompting for any missing details.

**Initial Requirements:**
- You need either a `projectSlug` (from `listFollowedProjects`) or a `projectID`. The tool will automatically resolve the project information from either of these.

**Typical Flow:**
1. **Start:** User initiates a rollback request.
2. **Project Selection:** If project id or project slug are not provided, call `listFollowedProjects` to get the list of projects the user follows and present the full list of projects to the user so that they can select the project they want to rollback.
3. **Project Information:** Provide either `projectSlug` or `projectID`. The tool will automatically resolve the project information as needed.
4. **Version Selection:** If component environment and version are not provided, call `listComponentVersions` to get the list of versions for the selected component and environment. If there is only one version, proceed automatically and do not ask the user to select a version. Otherwise, present the user with the full list of versions and ask them to select one. Always return all available values without categorizing them.
5. **Rollback Reason** ask the user for an optional reason for the rollback (e.g., "Critical bug fix"). Skip this step is the user explicitly requests a rollback by workflow rerun.
6. **Rollback pipeline check** if the tool reports that no rollback pipeline is defined, ask the user if they want to trigger a rollback by workflow rerun or suggest to setup a rollback pipeline following the documentation at https://circleci.com/docs/deploy/rollback-a-project-using-the-rollback-pipeline/.
7. **Confirmation:** Summarize the rollback request and confirm with the user before submitting.
8. **Pipeline Rollback:**  if the user requested a rollback by pipeline, call `runRollbackPipeline` passing all parameters including the namespace associated with the version to the tool.
9. **Workflow Rerun** If the user requested a rollback by workflow rerun, call `rerunWorkflow` passing the workflow ID of the selected version to the tool.
10.**Completion:** Report the outcome of the operation.

**Parameters:**
- `projectSlug` (optional): The project slug from `listFollowedProjects` (e.g., "gh/organization/project"). Either this or `projectID` must be provided.
- `projectID` (optional): The CircleCI project ID (UUID). Either this or `projectSlug` must be provided.
- `environmentName` (required): The target environment (e.g., "production", "staging").
- `componentName` (required): The component to rollback (e.g., "frontend", "backend").
- `currentVersion` (required): The currently deployed version.
- `targetVersion` (required): The version to rollback to.
- `namespace` (required): The namespace of the component.
- `reason` (optional): Reason for the rollback.
- `parameters` (optional): Additional rollback parameters as key-value pairs.

**Behavior:**
- If there are more than 20 environments or components, ask the user to refine their selection.
- Never attempt to guess or construct project slugs or URLs; always use values provided by the user or from `listFollowedProjects`.
- Do not prompt for missing parameters until versions have been listed.
- Do not call this tool with incomplete parameters.
- If the selected project lacks rollback pipeline configuration, provide a definitive error message without suggesting alternative projects.

**Returns:**
- On success: The rollback ID or a confirmation in case of workflow rerun.
- On error: A clear message describing what is missing or what went wrong.
- If the selected project does not have a rollback pipeline configured: The tool will provide a clear error message specific to that project and will NOT suggest trying another project.

**Important Note:**
- This tool is designed to work only with the specific project provided by the user.
- If a project does not have rollback capability configured, the tool will NOT recommend trying other projects.
- The assistant should NOT suggest trying different projects when a project lacks rollback configuration.
- Each project must have its own rollback pipeline configuration to be eligible for rollback operations.
- When a project cannot be rolled back, provide only the configuration guidance for THAT specific project.
- The tool automatically resolves project information from either `projectSlug` or `projectID`.
If no version is found, the tool will suggest the user to set up deploy markers following the documentation at:
https://circleci.com/docs/deploy/configure-deploy-markers/
ParametersJSON Schema
NameRequiredDescriptionDefault
paramsNo

TDQS

A4.5/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively describes the tool's interactive flow, error handling (e.g., clear error messages for missing rollback configuration), constraints (e.g., not guessing project slugs), and fallback behaviors (e.g., suggesting documentation for setup). However, it lacks details on rate limits or authentication needs.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with sections like 'Typical Flow' and 'Parameters', but it is overly verbose (e.g., detailing a 10-step flow). Some sentences could be condensed (e.g., repetitive notes on project configuration), reducing clarity through excessive detail. It front-loads key information but includes redundant instructions.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity, no annotations, and no output schema, the description is largely complete, covering purpose, usage, parameters, behavior, and returns. However, it lacks explicit details on output formats (e.g., structure of rollback ID) and could better integrate with sibling tools like 'rerun_workflow' in the flow description.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema description coverage is 0%, so the description must compensate fully. It provides a detailed 'Parameters' section explaining each parameter's purpose, optionality, and examples (e.g., 'projectSlug' from 'listFollowedProjects'), adding significant value beyond the bare schema. This compensates for the lack of schema descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Run a rollback pipeline for a CircleCI project.' It specifies the verb ('run'), resource ('rollback pipeline'), and scope ('CircleCI project'), distinguishing it from siblings like 'rerun_workflow' or 'run_pipeline' by focusing on rollback operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit guidance on when to use this tool, including prerequisites (e.g., needing projectSlug or projectID), when to call sibling tools like 'listFollowedProjects' or 'listComponentVersions', and alternatives like workflow rerun. It also specifies when not to use it (e.g., if a project lacks rollback configuration).

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 16 tool updates
    • First observedanalyze_diff
    • First observedconfig_helper
    • First observedcreate_prompt_template
    • First observeddownload_usage_api_data
    • First observedfind_flaky_tests
    • First observedfind_underused_resource_classes
    • First observedget_build_failure_logs
    • First observedget_job_test_results
    • First observedget_latest_pipeline_status
    • First observedlist_component_versions
    • First observedlist_followed_projects
    • First observedrecommend_prompt_template_tests
    • First observedrerun_workflow
    • First observedrun_evaluation_tests
    • First observedrun_pipeline
    • First observedrun_rollback_pipeline

TDQS

A3.9/5.0

Scored across 16 tools

Disambiguation3/5

Most tools have distinct purposes (e.g., config_helper vs. find_flaky_tests), but there is notable overlap between run_pipeline, run_evaluation_tests, and rerun_workflow, which all involve triggering or re-running CI workflows. Additionally, analyze_diff seems unrelated to CircleCI's core domain, creating confusion about the server's scope. Descriptions help clarify, but the overlap and outlier reduce clarity.

Naming Consistency4/5

The majority of tools follow a consistent verb_noun or verb_adjective_noun pattern (e.g., list_followed_projects, get_build_failure_logs, find_underused_resource_classes). However, there are minor deviations like config_helper (noun_verb) and analyze_diff (verb_noun without underscore), which slightly break the pattern but do not severely impact readability.

Tool Count3/5

With 16 tools, the count is borderline high for a CI-focused server, especially given the inclusion of prompt-related tools (create_prompt_template, recommend_prompt_template_tests) that seem out of scope. This makes the set feel somewhat bloated and less focused on core CircleCI operations, though it's not extreme.

Completeness4/5

For CircleCI operations, the surface covers key areas like project listing, pipeline management, debugging, and usage analysis, with good lifecycle coverage (e.g., run_pipeline, rerun_workflow, get_build_failure_logs). However, gaps exist in areas like user management or detailed configuration editing, and the prompt tools are tangential, slightly reducing coherence for the main domain.

Maintenance

ActivityStale
ResponsivenessUnresponsive

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