これは、なにをしたくて書いたもの？
Claude Codeのログといえば、個人的には--output-format stream-json --verboseで出力する内容を見るものだと思っていました。
CLI reference - Claude Code Docs
が、トランスクリプトログというものもあるようです。どういう違いがあるのだろうと見てみました。
Geminiの無料版でClaude Codeを使っているので、レートリミット上ログが追いにくいことになっていますが単体ではなんとか
辻褄を合わせています…。
トランスクリプトログ？
ドキュメントには特に説明はありません。
フックの入力の説明で、transcript_pathとして現れるだけです。会話のJSONログのようですね。
{ // Common fields session_id: string transcript_path: string // Path to conversation JSON cwd: string // The current working directory when the hook is invoked permission_mode: string // Current permission mode: "default", "plan", "acceptEdits", or "bypassPermissions" // Event-specific fields hook_event_name: string ... }
実際のパスは、この後に続くサンプルを見るとよいでしょう。たとえばPreToolUseイベントの入力です。
{ "session_id": "abc123", "transcript_path": "/Users/.../.claude/projects/.../00893aaf-19fa-41d2-8238-13269b9b3ca0.jsonl", "cwd": "/Users/...", "permission_mode": "default", "hook_event_name": "PreToolUse", "tool_name": "Write", "tool_input": { "file_path": "/path/to/file.txt", "content": "file content" }, "tool_use_id": "toolu_01ABC123..." }
[UUID v4]-jsonlというファイルになるようですね。
こちらを確認してみましょうというのが今回のお題です。なお、ドキュメントには書かれていない内容を見ていくことに
なるので、使用時点でのバージョンとしての参考情報として見るのがよいでしょう。
Claude Code＋Claude Code Router（Gemini）で試します。
環境
今回の環境はこちら。
$ claude --version 2.0.76 (Claude Code) $ ccr version claude-code-router version: 1.0.73
Claude Code RouterはGeminiを使うように設定しています。
$HOME/.claude-code-router/config.json
{ "PORT": 3456, "Providers": [ { "name": "gemini", "api_base_url": "https://generativelanguage.googleapis.com/v1beta/models/", "api_key": "xxxxx", "models": ["gemini-2.5-flash", "gemini-2.5-flash-lite", "gemini-2.5-pro"], "transformer": { "use": ["gemini"] } } ], "Router": { "default": "gemini,gemini-2.5-flash", "think": "gemini,gemini-2.5-flash", "webSearch": "gemini,gemini-2.5-flash" } }
起動はこちらで。
$ ccr code
トランスクリプトログを見てみる
ひとまずプロジェクトを作成します。
$ mkdir -p $HOME/projects/test $ cd $HOME/projects/test
この時点では$HOME/.claude/projectsというディレクトリーは存在しません。
$ ll $HOME/.claude/projects ls: '/home/user/.claude/projects' にアクセスできません: そのようなファイルやディレクトリはありません
Claude Codeを起動してみます。
$ ccr code
対象のプロジェクトで初めてClaude Codeを起動した時に、以下のような確認を求められると思います。
────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Do you trust the files in this folder? /home/user/projects/test Claude Code may read, write, or execute files contained in this directory. This can pose security risks, so only use files from trusted sources. Learn more ❯ 1. Yes, proceed 2. No, exit Enter to confirm · Esc to cancel
ここで「1. Yes, proceed」を選ぶと$HOME/.claude/projectsディレクトリー内にプロジェクトのディレクトリーが作成されます。
$ ll $HOME/.claude/projects 合計 12 drwx------ 2 user user 4096 1月 3 11:46 -home-user-projects-test/ drwx------ 3 user user 4096 1月 3 11:46 ./ drwxr-xr-x 9 user user 4096 1月 3 11:44 ../
すごい名前です…。
起動した時点で以下のようなファイルができています。
$ ll $HOME/.claude/projects/-home-user-projects-test 合計 16 drwx------ 2 user user 4096 1月 3 16:42 ./ drwx------ 3 user user 4096 1月 3 16:42 ../ -rw------- 1 user user 0 1月 3 16:42 1f8e1f01-bc5d-44ee-a968-918a93953dbc.jsonl -rw------- 1 user user 1529 1月 3 16:42 agent-a230ee9.jsonl -rw------- 1 user user 1338 1月 3 16:42 agent-a331552.jsonl
0バイトのファイルがトランスクリプトログのように見えます。
以降は、これらのログを確認する時は以下のディレクトリー内で行うものとします。
$ cd $HOME/.claude/projects/-home-user-projects-test
先にできている「agent-〜.jsonl」というログを見てみましょう。見やすいようにjq経由にしておきます。
$ cat agent-a230ee9.jsonl | jq { "parentUuid": null, "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "1f8e1f01-bc5d-44ee-a968-918a93953dbc", "version": "2.0.76", "gitBranch": "", "agentId": "a230ee9", "type": "user", "message": { "role": "user", "content": "Warmup" }, "uuid": "e3432cc5-aec2-466e-8867-73908d1ba43d", "timestamp": "2026-01-03T07:42:44.592Z" } { "parentUuid": "e3432cc5-aec2-466e-8867-73908d1ba43d", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "1f8e1f01-bc5d-44ee-a968-918a93953dbc", "version": "2.0.76", "gitBranch": "", "agentId": "a230ee9", "message": { "id": "msg_1767426167587", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "I am Claude Code, Anthropic's official CLI, and I'm ready to act as a software architect and planning specialist. I understand my role is to explore the codebase and design implementation plans in a **READ-ONLY** capacity. I will strictly adhere to the prohibition against creating, modifying, or deleting any files or system state.\n\nI am awaiting the specific requirements for the task. Once provided, I will thoroughly explore the codebase, design a solution, detail a step-by-step implementation plan, and identify the critical files involved.\n\nPlease provide the requirements so I can begin the planning process." } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 } }, "type": "assistant", "uuid": "3b9f5ec4-7fe2-4cd9-924b-8425582706d7", "timestamp": "2026-01-03T07:42:47.844Z" }
$ cat agent-a331552.jsonl | jq { "parentUuid": null, "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "1f8e1f01-bc5d-44ee-a968-918a93953dbc", "version": "2.0.76", "gitBranch": "", "agentId": "a331552", "type": "user", "message": { "role": "user", "content": "Warmup" }, "uuid": "67bbeb7e-3868-40b1-9133-7958e434f25f", "timestamp": "2026-01-03T07:42:44.588Z" } { "parentUuid": "67bbeb7e-3868-40b1-9133-7958e434f25f", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "1f8e1f01-bc5d-44ee-a968-918a93953dbc", "version": "2.0.76", "gitBranch": "", "agentId": "a331552", "message": { "id": "msg_1767426166740", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "Okay, I understand. I am ready. Please provide your search request, and I will efficiently navigate and explore the codebase to find the information you need, adhering strictly to read-only mode and all specified guidelines. I will report my findings using absolute paths and relevant code snippets.\n\nTo start, I will list the contents of the current directory to get an initial overview.\nWhat would you like me to search for?" } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 } }, "type": "assistant", "uuid": "21e78a91-3431-4139-a278-6e1b54b51df9", "timestamp": "2026-01-03T07:42:46.829Z" }
2つのログが入っているのですが、最初のひとつは同じですね。
Claude Codeと会話してみます。
> hello
● Hello! How can I help you today?
すると、トランスクリプトログが更新されました。
$ ll 合計 20 drwx------ 2 user user 4096 1月 3 16:42 ./ drwx------ 3 user user 4096 1月 3 16:42 ../ -rw------- 1 user user 1216 1月 3 16:46 1f8e1f01-bc5d-44ee-a968-918a93953dbc.jsonl -rw------- 1 user user 1529 1月 3 16:42 agent-a230ee9.jsonl -rw------- 1 user user 1338 1月 3 16:42 agent-a331552.jsonl
agent-〜.jsonlは更新されないようです。
トランスクリプトログの中身はこうでした。
$ cat 1f8e1f01-bc5d-44ee-a968-918a93953dbc.jsonl { "type": "file-history-snapshot", "messageId": "11ae1c77-f375-41ce-93c8-bfb91ba9cf53", "snapshot": { "messageId": "11ae1c77-f375-41ce-93c8-bfb91ba9cf53", "trackedFileBackups": {}, "timestamp": "2026-01-03T07:46:06.307Z" }, "isSnapshotUpdate": false } { "parentUuid": null, "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "1f8e1f01-bc5d-44ee-a968-918a93953dbc", "version": "2.0.76", "gitBranch": "", "type": "user", "message": { "role": "user", "content": "hello" }, "uuid": "11ae1c77-f375-41ce-93c8-bfb91ba9cf53", "timestamp": "2026-01-03T07:46:06.292Z", "thinkingMetadata": { "level": "high", "disabled": false, "triggers": [] }, "todos": [] } { "parentUuid": "11ae1c77-f375-41ce-93c8-bfb91ba9cf53", "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "1f8e1f01-bc5d-44ee-a968-918a93953dbc", "version": "2.0.76", "gitBranch": "", "message": { "id": "msg_1767426367570", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "Hello! How can I help you today?" } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 } }, "type": "assistant", "uuid": "1c69b8d7-384c-4b49-8810-7f25d201cf0a", "timestamp": "2026-01-03T07:46:07.574Z" }
ここで1度Claude Codeを終了し、ログも削除しておきます。
$ rm *.jsonl
--output-format stream-json --verboseとの違い？
ここでちょっと気になるのは、--output-format stream-json --verboseオプションをつけた時に出力されるログとの違いです。
確認してみましょう。
$ ccr code --output-format stream-json --verbose -p 'hello' | tee non-interactive.jsonl (node:10133) [DEP0190] DeprecationWarning: Passing args to a child process with shell option true can lead to security vulnerabilities, as the arguments are not escaped, only concatenated. (Use `node --trace-deprecation ...` to show where the warning was created) {"type":"system","subtype":"init","cwd":"/home/user/projects/test","session_id":"3b7f14a0-83d0-495c-9507-a0fe1f22e209","tools":["Task","TaskOutput","Bash","Glob","Grep","ExitPlanMode","Read","Edit","Write","NotebookEdit","WebFetch","TodoWrite","WebSearch","KillShell","AskUserQuestion","Skill","EnterPlanMode"],"mcp_servers":[],"model":"claude-sonnet-4-5-20250929","permissionMode":"default","slash_commands":["compact","context","cost","init","pr-comments","release-notes","review","security-review"],"apiKeySource":"none","claude_code_version":"2.0.76","output_style":"default","agents":["general-purpose","statusline-setup","Explore","Plan"],"skills":[],"plugins":[],"uuid":"e83ea3ed-8849-45a4-92de-c881388d906d"} {"type":"assistant","message":{"id":"msg_1767427100770","type":"message","role":"assistant","content":[{"type":"text","text":"Hello! How can I help you today? If you need assistance, type `/help` for more information. To provide feedback, please report issues at https://github.com/anthropics/claude-code/issues."}],"model":"gemini-2.5-flash","stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":0,"output_tokens":0},"context_management":null},"parent_tool_use_id":null,"session_id":"3b7f14a0-83d0-495c-9507-a0fe1f22e209","uuid":"eeaa032d-9bf0-4bb8-91a3-1a299b50489a"} {"type":"result","subtype":"success","is_error":false,"duration_ms":2513,"duration_api_ms":4499,"num_turns":1,"result":"Hello! How can I help you today? If you need assistance, type `/help` for more information. To provide feedback, please report issues at https://github.com/anthropics/claude-code/issues.","session_id":"3b7f14a0-83d0-495c-9507-a0fe1f22e209","total_cost_usd":0.047366000000000005,"usage":{"input_tokens":15246,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":46,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":0}},"modelUsage":{"claude-haiku-4-5-20251001":{"inputTokens":723,"outputTokens":43,"cacheReadInputTokens":0,"cacheCreationInputTokens":0,"webSearchRequests":0,"costUSD":0.000938,"contextWindow":200000},"claude-sonnet-4-5-20250929":{"inputTokens":15246,"outputTokens":46,"cacheReadInputTokens":0,"cacheCreationInputTokens":0,"webSearchRequests":0,"costUSD":0.046428000000000004,"contextWindow":200000}},"permission_denials":[],"uuid":"6ddb662d-02f9-4c37-b51e-b0f894a02fef"}
整形して見てみます。
$ cat non-interactive.jsonl | jq { "type": "system", "subtype": "init", "cwd": "/home/user/projects/test", "session_id": "3b7f14a0-83d0-495c-9507-a0fe1f22e209", "tools": [ "Task", "TaskOutput", "Bash", "Glob", "Grep", "ExitPlanMode", "Read", "Edit", "Write", "NotebookEdit", "WebFetch", "TodoWrite", "WebSearch", "KillShell", "AskUserQuestion", "Skill", "EnterPlanMode" ], "mcp_servers": [], "model": "claude-sonnet-4-5-20250929", "permissionMode": "default", "slash_commands": [ "compact", "context", "cost", "init", "pr-comments", "release-notes", "review", "security-review" ], "apiKeySource": "none", "claude_code_version": "2.0.76", "output_style": "default", "agents": [ "general-purpose", "statusline-setup", "Explore", "Plan" ], "skills": [], "plugins": [], "uuid": "e83ea3ed-8849-45a4-92de-c881388d906d" } { "type": "assistant", "message": { "id": "msg_1767427100770", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "Hello! How can I help you today? If you need assistance, type `/help` for more information. To provide feedback, please report issues at https://github.com/anthropics/claude-code/issues." } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 }, "context_management": null }, "parent_tool_use_id": null, "session_id": "3b7f14a0-83d0-495c-9507-a0fe1f22e209", "uuid": "eeaa032d-9bf0-4bb8-91a3-1a299b50489a" } { "type": "result", "subtype": "success", "is_error": false, "duration_ms": 2513, "duration_api_ms": 4499, "num_turns": 1, "result": "Hello! How can I help you today? If you need assistance, type `/help` for more information. To provide feedback, please report issues at https://github.com/anthropics/claude-code/issues.", "session_id": "3b7f14a0-83d0-495c-9507-a0fe1f22e209", "total_cost_usd": 0.047366000000000005, "usage": { "input_tokens": 15246, "cache_creation_input_tokens": 0, "cache_read_input_tokens": 0, "output_tokens": 46, "server_tool_use": { "web_search_requests": 0, "web_fetch_requests": 0 }, "service_tier": "standard", "cache_creation": { "ephemeral_1h_input_tokens": 0, "ephemeral_5m_input_tokens": 0 } }, "modelUsage": { "claude-haiku-4-5-20251001": { "inputTokens": 723, "outputTokens": 43, "cacheReadInputTokens": 0, "cacheCreationInputTokens": 0, "webSearchRequests": 0, "costUSD": 0.000938, "contextWindow": 200000 }, "claude-sonnet-4-5-20250929": { "inputTokens": 15246, "outputTokens": 46, "cacheReadInputTokens": 0, "cacheCreationInputTokens": 0, "webSearchRequests": 0, "costUSD": 0.046428000000000004, "contextWindow": 200000 } }, "permission_denials": [], "uuid": "6ddb662d-02f9-4c37-b51e-b0f894a02fef" }
トランスクリプトログ。
$ cat 3b7f14a0-83d0-495c-9507-a0fe1f22e209.jsonl | jq { "type": "queue-operation", "operation": "dequeue", "timestamp": "2026-01-03T07:58:18.703Z", "sessionId": "3b7f14a0-83d0-495c-9507-a0fe1f22e209" } { "parentUuid": null, "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "3b7f14a0-83d0-495c-9507-a0fe1f22e209", "version": "2.0.76", "gitBranch": "", "type": "user", "message": { "role": "user", "content": "hello" }, "uuid": "c3bb1e7e-a68e-45fe-8cbe-377fe8f61cdf", "timestamp": "2026-01-03T07:58:18.762Z" } { "parentUuid": "c3bb1e7e-a68e-45fe-8cbe-377fe8f61cdf", "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "3b7f14a0-83d0-495c-9507-a0fe1f22e209", "version": "2.0.76", "gitBranch": "", "message": { "id": "msg_1767427100770", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "Hello! How can I help you today? If you need assistance, type `/help` for more information. To provide feedback, please report issues at https://github.com/anthropics/claude-code/issues." } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 } }, "type": "assistant", "uuid": "eeaa032d-9bf0-4bb8-91a3-1a299b50489a", "timestamp": "2026-01-03T07:58:20.835Z" }
情報量的には--output-format stream-json --verboseオプションをつけた時のログの方が詳細みたいですね。
ちなみに、--output-format jsonオプションにした場合はこちら（--verboseをつけるとsteam-jsonと差がなくなるので…）。
$ ccr code --output-format json -p 'hello' | tee non-interactive2.jsonl (node:11648) [DEP0190] DeprecationWarning: Passing args to a child process with shell option true can lead to security vulnerabilities, as the arguments are not escaped, only concatenated. (Use `node --trace-deprecation ...` to show where the warning was created) {"type":"result","subtype":"success","is_error":false,"duration_ms":2127,"duration_api_ms":4097,"num_turns":1,"result":"Hello! How can I help you today?","session_id":"b146a199-07e0-4bc4-9f19-d4450d852ad6","total_cost_usd":0.046826000000000007,"usage":{"input_tokens":15246,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":9,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":0}},"modelUsage":{"claude-haiku-4-5-20251001":{"inputTokens":723,"outputTokens":46,"cacheReadInputTokens":0,"cacheCreationInputTokens":0,"webSearchRequests":0,"costUSD":0.0009530000000000001,"contextWindow":200000},"claude-sonnet-4-5-20250929":{"inputTokens":15246,"outputTokens":9,"cacheReadInputTokens":0,"cacheCreationInputTokens":0,"webSearchRequests":0,"costUSD":0.045873000000000004,"contextWindow":200000}},"permission_denials":[],"uuid":"b176fb08-ac0a-4c46-b003-8bcb6ce89bb8"}
こちらではユーザーのプロンプトが残らないですね…。
$ cat non-interactive2.jsonl | jq { "type": "result", "subtype": "success", "is_error": false, "duration_ms": 2127, "duration_api_ms": 4097, "num_turns": 1, "result": "Hello! How can I help you today?", "session_id": "b146a199-07e0-4bc4-9f19-d4450d852ad6", "total_cost_usd": 0.046826000000000007, "usage": { "input_tokens": 15246, "cache_creation_input_tokens": 0, "cache_read_input_tokens": 0, "output_tokens": 9, "server_tool_use": { "web_search_requests": 0, "web_fetch_requests": 0 }, "service_tier": "standard", "cache_creation": { "ephemeral_1h_input_tokens": 0, "ephemeral_5m_input_tokens": 0 } }, "modelUsage": { "claude-haiku-4-5-20251001": { "inputTokens": 723, "outputTokens": 46, "cacheReadInputTokens": 0, "cacheCreationInputTokens": 0, "webSearchRequests": 0, "costUSD": 0.0009530000000000001, "contextWindow": 200000 }, "claude-sonnet-4-5-20250929": { "inputTokens": 15246, "outputTokens": 9, "cacheReadInputTokens": 0, "cacheCreationInputTokens": 0, "webSearchRequests": 0, "costUSD": 0.045873000000000004, "contextWindow": 200000 } }, "permission_denials": [], "uuid": "b176fb08-ac0a-4c46-b003-8bcb6ce89bb8" }
サブエージェントのログはどこに？
こういうのを見ていて個人的に気になるのは、「サブエージェントのログはどこに含まれるのか？」です。
というわけで、サブエージェントを作成します。こちらで作ったサブエージェントを使いましょう。
Claude Codeのサブエージェントってなんだ？ - CLOVER🍀
.claude/agents/java-cli-engineer.md
--- name: java-cli-engineer description: Use this agent when the user explicitly requests the creation, modification, execution, or troubleshooting of a command-line interface (CLI) application written in Java. This includes tasks such as designing CLI command structures, implementing Java code for CLI functionality, providing build instructions (e.g., Maven, Gradle), or guiding on how to run a Java CLI application. \n\n<example>\nContext: The user wants to create a simple Java CLI tool to greet users.\nuser: "Javaでユーザー名を引数に取って挨拶するCLIアプリを作って" (Create a Java CLI app that takes a username as an argument and greets them)\nassistant: "I'm going to use the Task tool to launch the `java-cli-engineer` agent to help you create that Java CLI application."\n<commentary>\nThe user explicitly asked for a Java CLI application, indicating the need for a Java CLI engineer.\n</commentary>\n</example>\n\n<example>\nContext: The user has an existing Java CLI project and needs help with its build configuration.\nuser: "MavenでビルドできるJava CLIアプリのpom.xmlの書き方について教えてください。" (Please tell me how to write a pom.xml for a Java CLI app that can be built with Maven.)\nassistant: "I'm going to use the Task tool to launch the `java-cli-engineer` agent to assist you with your Maven `pom.xml` for a Java CLI application."\n<commentary>\nThe user is asking for help related to building a Java CLI application, making the Java CLI engineer agent appropriate.\n</commentary>\n</example>\n\n<example>\nContext: The user has received Java code for a CLI and needs instructions on how to compile and run it.\nuser: "このJavaのCLIコードを実行するにはどうすればいいですか？" (How do I run this Java CLI code?)\nassistant: "I'm going to use the Task tool to launch the `java-cli-engineer` agent to provide you with instructions on how to compile and run that Java CLI application."\n<commentary>\nThe user is asking for help with executing a Java CLI application, which falls under the expertise of the Java CLI engineer.\n</commentary>\n</example> model: inherit --- You are a highly experienced and meticulous Senior Java CLI Application Engineer. Your expertise lies in designing, implementing, testing, and providing operational guidance for robust and user-friendly command-line interface applications written in Java. You are proficient with various Java CLI libraries (e.g., Picocli, JCommander, Apache Commons CLI) and build tools like Maven and Gradle. Your primary goal is to translate user requirements into functional, well-structured, and executable Java CLI applications or provide expert advice on existing ones. **You will:** 1. **Understand Requirements**: Carefully analyze the user's request to grasp the desired functionality, input parameters, output expectations, and any specific constraints for the Java CLI application. Proactively ask clarifying questions if any aspect of the request is ambiguous or incomplete. 2. **Design CLI Structure**: Propose an intuitive command structure, argument parsing, and option handling that adheres to common CLI best practices and provides a good user experience. 3. **Implement Java Code**: Write clean, idiomatic, and efficient Java code that fulfills the specified functionality. * Utilize appropriate data structures and algorithms. * Implement robust error handling for invalid inputs, file operations, or other potential runtime issues. * Provide clear and informative output to the user, including success messages, error messages, and usage instructions. * Comment your code where necessary for clarity. 4. **Incorporate Build System Integration**: * If creating a new project, assume Maven or Gradle as the build tool unless specified otherwise. * Provide the necessary `pom.xml` (Maven) or `build.gradle` (Gradle) configuration to compile, package, and make the application executable (e.g., a self-contained JAR). 5. **Provide Execution Instructions**: Clearly outline the steps required to compile, build, and run the Java CLI application, including example command-line invocations with various arguments. 6. **Troubleshoot and Debug**: If the user provides existing code or describes a problem, diagnose the issue, explain its root cause, and provide a corrected solution or detailed steps for remediation. 7. **Adhere to Best Practices**: Ensure the Java code follows standard coding conventions, is maintainable, and performs well. Consider modularity and separation of concerns. 8. **Output Format**: Deliver solutions as complete, ready-to-use code snippets, configuration files, and step-by-step instructions. Always include example commands for building and running the application. **You will NOT:** * Attempt to guess requirements if they are unclear; instead, you will ask for clarification. * Provide non-Java solutions for CLI applications unless explicitly requested and justified. * Generate extensive UI frameworks; focus solely on command-line interactions. **Quality Control and Self-Correction**: * Before presenting any code or instructions, mentally 'execute' them to verify correctness and completeness. * Ensure all necessary imports, dependencies, and build configurations are included. * Check that the provided execution commands are accurate and functional. * Review the CLI design for user-friendliness and robustness. Your goal is to empower the user to successfully develop and operate Java CLI applications with your expert guidance.
settings.jsonにはツールの許可をしておきます。
.claude/settings.json
{ "permissions": { "allow": [ "Read", "Write", "Bash(javac:*)", "Bash(java:*)", "Bash(mkdir:*)" ] } }
こんなプロンプトで実行してみます。Mavenプロジェクトを作ろうとすることが多いので、こういう指定にしました…。
$ ccr code --output-format stream-json --verbose -p 'java-cli-engineerサブエージェントを使い、クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを作成して実行してください。Mavenは使わず、単一のJavaのソースコードとして作成してください' | tee with-subagent.jsonl
コンソールに出力された内容。
(node:18988) [DEP0190] DeprecationWarning: Passing args to a child process with shell option true can lead to security vulnerabilities, as the arguments are not escaped, only concatenated. (Use `node --trace-deprecation ...` to show where the warning was created) {"type":"system","subtype":"init","cwd":"/home/user/projects/test","session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","tools":["Task","TaskOutput","Bash","Glob","Grep","ExitPlanMode","Read","Edit","Write","NotebookEdit","WebFetch","TodoWrite","WebSearch","KillShell","AskUserQuestion","Skill","EnterPlanMode"],"mcp_servers":[],"model":"claude-sonnet-4-5-20250929","permissionMode":"default","slash_commands":["compact","context","cost","init","pr-comments","release-notes","review","security-review"],"apiKeySource":"none","claude_code_version":"2.0.76","output_style":"default","agents":["general-purpose","statusline-setup","Explore","Plan","java-cli-engineer"],"skills":[],"plugins":[],"uuid":"3aa04088-563f-464a-8953-71ffe2685774"} {"type":"assistant","message":{"id":"msg_1767429575282","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"(no content)","signature":"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"}],"model":"gemini-2.5-flash","stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":15840,"output_tokens":68,"cache_read_input_tokens":0},"context_management":null},"parent_tool_use_id":null,"session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"58533bb4-da56-4463-80e7-cf3d68d37646"} {"type":"assistant","message":{"id":"msg_1767429575282","type":"message","role":"assistant","content":[{"type":"text","text":"(no content)"}],"model":"gemini-2.5-flash","stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":15840,"output_tokens":68,"cache_read_input_tokens":0},"context_management":null},"parent_tool_use_id":null,"session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"78835e0a-b484-422b-861e-07548efea975"} {"type":"assistant","message":{"id":"msg_1767429575282","type":"message","role":"assistant","content":[{"type":"tool_use","id":"ccr_tool_oh4bgfaa8g","name":"Task","input":{"subagent_type":"java-cli-engineer","description":"Create and run Java program","prompt":"クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとし て作成し、実行してください。Mavenは使用しないでください。"}}],"model":"gemini-2.5-flash","stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":15840,"output_tokens":68,"cache_read_input_tokens":0},"context_management":null},"parent_tool_use_id":null,"session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"9132588c-c72e-418a-8749-1cabb2c01f93"} {"type":"user","message":{"role":"user","content":[{"type":"text","text":"クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実 行してください。Mavenは使用しないでください。"}]},"parent_tool_use_id":"ccr_tool_oh4bgfaa8g","session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"a5d7f7e6-3023-46f8-a69a-aeebfeae0a01"} {"type":"assistant","message":{"id":"msg_1767429577908","type":"message","role":"assistant","content":[{"type":"tool_use","id":"ccr_tool_z9x52k0n6k","name":"Write","input":{"file_path":"/home/user/projects/test/App.java","content":"public class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n"}}],"model":"gemini-2.5-flash","stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":9677,"output_tokens":67,"cache_read_input_tokens":0},"context_management":null},"parent_tool_use_id":"ccr_tool_oh4bgfaa8g","session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"a26097c2-1976-4107-bde7-d3e87073d57c"} {"type":"user","message":{"role":"user","content":[{"tool_use_id":"ccr_tool_z9x52k0n6k","type":"tool_result","content":"File created successfully at: /home/user/projects/test/App.java"}]},"parent_tool_use_id":"ccr_tool_oh4bgfaa8g","session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"15f879a8-622d-434f-bd1f-c5b1a98a5f10","tool_use_result":{"type":"create","filePath":"/home/user/projects/test/App.java","content":"public class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n","structuredPatch":[],"originalFile":null}} {"type":"assistant","message":{"id":"msg_1767429581159","type":"message","role":"assistant","content":[{"type":"tool_use","id":"ccr_tool_hcl1t68y01a","name":"Bash","input":{"command":"javac /home/user/projects/test/App.java","description":"Compile App.java"}}],"model":"gemini-2.5-flash","stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":10059,"output_tokens":33,"cache_read_input_tokens":0},"context_management":null},"parent_tool_use_id":"ccr_tool_oh4bgfaa8g","session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"b4c5bf90-427a-4d46-9b45-3bc7f01dbd45"} {"type":"user","message":{"role":"user","content":[{"tool_use_id":"ccr_tool_hcl1t68y01a","type":"tool_result","content":"","is_error":false}]},"parent_tool_use_id":"ccr_tool_oh4bgfaa8g","session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"b989a4e8-a76d-4c1c-aa9c-bfa068fab53d","tool_use_result":{"stdout":"","stderr":"","interrupted":false,"isImage":false}} {"type":"assistant","message":{"id":"msg_1767429583744","type":"message","role":"assistant","content":[{"type":"tool_use","id":"ccr_tool_s6683pirmjh","name":"Bash","input":{"command":"java -cp /home/user/projects/test App","description":"Execute the compiled App class"}}],"model":"gemini-2.5-flash","stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":0,"output_tokens":0},"context_management":null},"parent_tool_use_id":"ccr_tool_oh4bgfaa8g","session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"d77eeb53-bd2a-45ff-9398-995661ffe14f"} {"type":"user","message":{"role":"user","content":[{"tool_use_id":"ccr_tool_s6683pirmjh","type":"tool_result","content":"Hello SubAgent！！","is_error":false}]},"parent_tool_use_id":"ccr_tool_oh4bgfaa8g","session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"d2dc312c-29ff-418e-b079-2797a95e90b6","tool_use_result":{"stdout":"Hello SubAgent！！","stderr":"","interrupted":false,"isImage":false}} {"type":"user","message":{"role":"user","content":[{"tool_use_id":"ccr_tool_oh4bgfaa8g","type":"tool_result","content":[{"type":"text","text":"ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```"},{"type":"text","text":"agentId: a106497 (for resuming to continue this agent's work if needed)"}]}]},"parent_tool_use_id":null,"session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"994e03c7-abc3-4fd6-9338-e57337290683","tool_use_result":{"status":"completed","prompt":"クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。","agentId":"a106497","content":[{"type":"text","text":"ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```"}],"totalDurationMs":87274,"totalTokens":10019,"totalToolUseCount":3,"usage":{"input_tokens":468,"output_tokens":140,"cache_read_input_tokens":9411}}} {"type":"assistant","message":{"id":"msg_1767429664208","type":"message","role":"assistant","content":[{"type":"text","text":"ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```"}],"model":"gemini-2.5-flash","stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":0,"output_tokens":0},"context_management":null},"parent_tool_use_id":null,"session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","uuid":"9136c4e9-59a6-4642-82fd-7e2dfa81209c"} {"type":"result","subtype":"success","is_error":false,"duration_ms":93451,"duration_api_ms":176896,"num_turns":2,"result":"ファイル `/home/user/projects/test/App.java` を作 成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```","session_id":"b425ff87-3f02-4242-804d-7459af5f20f6","total_cost_usd":0.13288840000000002,"usage":{"input_tokens":17305,"cache_creation_input_tokens":0,"cache_read_input_tokens":14955,"output_tokens":196,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":0}},"modelUsage":{"claude-haiku-4-5-20251001":{"inputTokens":1034,"outputTokens":73,"cacheReadInputTokens":0,"cacheCreationInputTokens":0,"webSearchRequests":0,"costUSD":0.001399,"contextWindow":200000},"claude-sonnet-4-5-20250929":{"inputTokens":38265,"outputTokens":618,"cacheReadInputTokens":24748,"cacheCreationInputTokens":0,"webSearchRequests":0,"costUSD":0.1314894,"contextWindow":200000}},"permission_denials":[],"uuid":"d44da42a-0a15-40d2-959e-67f46ebaa47c"}
jqで整形してみましょう。
$ cat with-subagent.jsonl | jq { "type": "system", "subtype": "init", "cwd": "/home/user/projects/test", "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "tools": [ "Task", "TaskOutput", "Bash", "Glob", "Grep", "ExitPlanMode", "Read", "Edit", "Write", "NotebookEdit", "WebFetch", "TodoWrite", "WebSearch", "KillShell", "AskUserQuestion", "Skill", "EnterPlanMode" ], "mcp_servers": [], "model": "claude-sonnet-4-5-20250929", "permissionMode": "default", "slash_commands": [ "compact", "context", "cost", "init", "pr-comments", "release-notes", "review", "security-review" ], "apiKeySource": "none", "claude_code_version": "2.0.76", "output_style": "default", "agents": [ "general-purpose", "statusline-setup", "Explore", "Plan", "java-cli-engineer" ], "skills": [], "plugins": [], "uuid": "3aa04088-563f-464a-8953-71ffe2685774" } { "type": "assistant", "message": { "id": "msg_1767429575282", "type": "message", "role": "assistant", "content": [ { "type": "thinking", "thinking": "(no content)", "signature": "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" } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 15840, "output_tokens": 68, "cache_read_input_tokens": 0 }, "context_management": null }, "parent_tool_use_id": null, "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "58533bb4-da56-4463-80e7-cf3d68d37646" } { "type": "assistant", "message": { "id": "msg_1767429575282", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "(no content)" } ], "model": "gemini-2.5-flash", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 15840, "output_tokens": 68, "cache_read_input_tokens": 0 }, "context_management": null }, "parent_tool_use_id": null, "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "78835e0a-b484-422b-861e-07548efea975" } { "type": "assistant", "message": { "id": "msg_1767429575282", "type": "message", "role": "assistant", "content": [ { "type": "tool_use", "id": "ccr_tool_oh4bgfaa8g", "name": "Task", "input": { "subagent_type": "java-cli-engineer", "description": "Create and run Java program", "prompt": "クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。" } } ], "model": "gemini-2.5-flash", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 15840, "output_tokens": 68, "cache_read_input_tokens": 0 }, "context_management": null }, "parent_tool_use_id": null, "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "9132588c-c72e-418a-8749-1cabb2c01f93" } { "type": "user", "message": { "role": "user", "content": [ { "type": "text", "text": "クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。" } ] }, "parent_tool_use_id": "ccr_tool_oh4bgfaa8g", "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "a5d7f7e6-3023-46f8-a69a-aeebfeae0a01" } { "type": "assistant", "message": { "id": "msg_1767429577908", "type": "message", "role": "assistant", "content": [ { "type": "tool_use", "id": "ccr_tool_z9x52k0n6k", "name": "Write", "input": { "file_path": "/home/user/projects/test/App.java", "content": "public class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n" } } ], "model": "gemini-2.5-flash", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 9677, "output_tokens": 67, "cache_read_input_tokens": 0 }, "context_management": null }, "parent_tool_use_id": "ccr_tool_oh4bgfaa8g", "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "a26097c2-1976-4107-bde7-d3e87073d57c" } { "type": "user", "message": { "role": "user", "content": [ { "tool_use_id": "ccr_tool_z9x52k0n6k", "type": "tool_result", "content": "File created successfully at: /home/user/projects/test/App.java" } ] }, "parent_tool_use_id": "ccr_tool_oh4bgfaa8g", "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "15f879a8-622d-434f-bd1f-c5b1a98a5f10", "tool_use_result": { "type": "create", "filePath": "/home/user/projects/test/App.java", "content": "public class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n", "structuredPatch": [], "originalFile": null } } { "type": "assistant", "message": { "id": "msg_1767429581159", "type": "message", "role": "assistant", "content": [ { "type": "tool_use", "id": "ccr_tool_hcl1t68y01a", "name": "Bash", "input": { "command": "javac /home/user/projects/test/App.java", "description": "Compile App.java" } } ], "model": "gemini-2.5-flash", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 10059, "output_tokens": 33, "cache_read_input_tokens": 0 }, "context_management": null }, "parent_tool_use_id": "ccr_tool_oh4bgfaa8g", "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "b4c5bf90-427a-4d46-9b45-3bc7f01dbd45" } { "type": "user", "message": { "role": "user", "content": [ { "tool_use_id": "ccr_tool_hcl1t68y01a", "type": "tool_result", "content": "", "is_error": false } ] }, "parent_tool_use_id": "ccr_tool_oh4bgfaa8g", "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "b989a4e8-a76d-4c1c-aa9c-bfa068fab53d", "tool_use_result": { "stdout": "", "stderr": "", "interrupted": false, "isImage": false } } { "type": "assistant", "message": { "id": "msg_1767429583744", "type": "message", "role": "assistant", "content": [ { "type": "tool_use", "id": "ccr_tool_s6683pirmjh", "name": "Bash", "input": { "command": "java -cp /home/user/projects/test App", "description": "Execute the compiled App class" } } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 }, "context_management": null }, "parent_tool_use_id": "ccr_tool_oh4bgfaa8g", "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "d77eeb53-bd2a-45ff-9398-995661ffe14f" } { "type": "user", "message": { "role": "user", "content": [ { "tool_use_id": "ccr_tool_s6683pirmjh", "type": "tool_result", "content": "Hello SubAgent！！", "is_error": false } ] }, "parent_tool_use_id": "ccr_tool_oh4bgfaa8g", "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "d2dc312c-29ff-418e-b079-2797a95e90b6", "tool_use_result": { "stdout": "Hello SubAgent！！", "stderr": "", "interrupted": false, "isImage": false } } { "type": "user", "message": { "role": "user", "content": [ { "tool_use_id": "ccr_tool_oh4bgfaa8g", "type": "tool_result", "content": [ { "type": "text", "text": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```" }, { "type": "text", "text": "agentId: a106497 (for resuming to continue this agent's work if needed)" } ] } ] }, "parent_tool_use_id": null, "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "994e03c7-abc3-4fd6-9338-e57337290683", "tool_use_result": { "status": "completed", "prompt": "クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。", "agentId": "a106497", "content": [ { "type": "text", "text": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```" } ], "totalDurationMs": 87274, "totalTokens": 10019, "totalToolUseCount": 3, "usage": { "input_tokens": 468, "output_tokens": 140, "cache_read_input_tokens": 9411 } } } { "type": "assistant", "message": { "id": "msg_1767429664208", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```" } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 }, "context_management": null }, "parent_tool_use_id": null, "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "9136c4e9-59a6-4642-82fd-7e2dfa81209c" } { "type": "result", "subtype": "success", "is_error": false, "duration_ms": 93451, "duration_api_ms": 176896, "num_turns": 2, "result": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```", "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "total_cost_usd": 0.13288840000000002, "usage": { "input_tokens": 17305, "cache_creation_input_tokens": 0, "cache_read_input_tokens": 14955, "output_tokens": 196, "server_tool_use": { "web_search_requests": 0, "web_fetch_requests": 0 }, "service_tier": "standard", "cache_creation": { "ephemeral_1h_input_tokens": 0, "ephemeral_5m_input_tokens": 0 } }, "modelUsage": { "claude-haiku-4-5-20251001": { "inputTokens": 1034, "outputTokens": 73, "cacheReadInputTokens": 0, "cacheCreationInputTokens": 0, "webSearchRequests": 0, "costUSD": 0.001399, "contextWindow": 200000 }, "claude-sonnet-4-5-20250929": { "inputTokens": 38265, "outputTokens": 618, "cacheReadInputTokens": 24748, "cacheCreationInputTokens": 0, "webSearchRequests": 0, "costUSD": 0.1314894, "contextWindow": 200000 } }, "permission_denials": [], "uuid": "d44da42a-0a15-40d2-959e-67f46ebaa47c" }
よく見るとですね、parent_tool_use_idというフィールドに同じ値が入っているものがいます。
{ "type": "user", "message": { "role": "user", "content": [ { "type": "text", "text": "クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。" } ] }, "parent_tool_use_id": "ccr_tool_oh4bgfaa8g", "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "a5d7f7e6-3023-46f8-a69a-aeebfeae0a01" }
このログはサブエージェントを呼び出した時のプロンプトみたいですね。
このidはなにかというと、サブエージェントを起動した時のTaskツールのidですね。
{ "type": "assistant", "message": { "id": "msg_1767429575282", "type": "message", "role": "assistant", "content": [ { "type": "tool_use", "id": "ccr_tool_oh4bgfaa8g", "name": "Task", "input": { "subagent_type": "java-cli-engineer", "description": "Create and run Java program", "prompt": "クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。" } } ], "model": "gemini-2.5-flash", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 15840, "output_tokens": 68, "cache_read_input_tokens": 0 }, "context_management": null }, "parent_tool_use_id": null, "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "9132588c-c72e-418a-8749-1cabb2c01f93" }
parent_tool_use_idがnullの場合は、親がいない（起動したClaude Codeそのもの）と考えればよさそうです。
ということは、--output-format stream-json --verboseで出力したログにはサブエージェントのログも含まれる、でよさそうです。
サブエージェントが返してきた内容はこちらのようです。Taskツールの結果、とも言えるでしょう。
{ "type": "user", "message": { "role": "user", "content": [ { "tool_use_id": "ccr_tool_oh4bgfaa8g", "type": "tool_result", "content": [ { "type": "text", "text": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```" }, { "type": "text", "text": "agentId: a106497 (for resuming to continue this agent's work if needed)" } ] } ] }, "parent_tool_use_id": null, "session_id": "b425ff87-3f02-4242-804d-7459af5f20f6", "uuid": "994e03c7-abc3-4fd6-9338-e57337290683", "tool_use_result": { "status": "completed", "prompt": "クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。", "agentId": "a106497", "content": [ { "type": "text", "text": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```" } ], "totalDurationMs": 87274, "totalTokens": 10019, "totalToolUseCount": 3, "usage": { "input_tokens": 468, "output_tokens": 140, "cache_read_input_tokens": 9411 } } }
トランスクリプトログでも出てきますが、agentIdというフィールドがポイントですね。
なお、Claude Codeが作成したソースコードはこちらです。
App.java
public class App { public static void main(String[] args) { System.out.println("Hello SubAgent！！"); } }
そしてトランスクリプトがあるディレクトリーを見てみましょう。
$ ll -rw------- 1 user user 2151 1月 3 17:39 agent-a024e88.jsonl -rw------- 1 user user 11867 1月 3 17:41 agent-a106497.jsonl -rw------- 1 user user 1151 1月 3 17:39 agent-af38a21.jsonl -rw------- 1 user user 7224 1月 3 17:41 b425ff87-3f02-4242-804d-7459af5f20f6.jsonl
1ファイル、agent-〜.jsonlファイルが多いですね。
トランスクリプトログを見てみます。
$ cat b425ff87-3f02-4242-804d-7459af5f20f6.jsonl | jq { "type": "queue-operation", "operation": "dequeue", "timestamp": "2026-01-03T08:39:32.101Z", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6" } { "parentUuid": null, "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "type": "user", "message": { "role": "user", "content": "java-cli-engineerサブエージェントを使い、クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを作成して実行してください。Mavenは使わず、単一のJavaのソ ースコードとして作成してください" }, "uuid": "7c569944-d7f1-46da-9991-a037450de57c", "timestamp": "2026-01-03T08:39:32.127Z" } { "parentUuid": "7c569944-d7f1-46da-9991-a037450de57c", "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "message": { "id": "msg_1767429575282", "type": "message", "role": "assistant", "content": [ { "type": "thinking", "thinking": "(no content)", "signature": "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" } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 15840, "output_tokens": 68, "cache_read_input_tokens": 0 } }, "type": "assistant", "uuid": "58533bb4-da56-4463-80e7-cf3d68d37646", "timestamp": "2026-01-03T08:39:35.290Z" } { "parentUuid": "58533bb4-da56-4463-80e7-cf3d68d37646", "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "message": { "id": "msg_1767429575282", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "(no content)" } ], "model": "gemini-2.5-flash", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 15840, "output_tokens": 68, "cache_read_input_tokens": 0 } }, "type": "assistant", "uuid": "78835e0a-b484-422b-861e-07548efea975", "timestamp": "2026-01-03T08:39:35.296Z" } { "parentUuid": "78835e0a-b484-422b-861e-07548efea975", "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "message": { "id": "msg_1767429575282", "type": "message", "role": "assistant", "content": [ { "type": "tool_use", "id": "ccr_tool_oh4bgfaa8g", "name": "Task", "input": { "subagent_type": "java-cli-engineer", "description": "Create and run Java program", "prompt": "クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。" } } ], "model": "gemini-2.5-flash", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 15840, "output_tokens": 68, "cache_read_input_tokens": 0 } }, "type": "assistant", "uuid": "9132588c-c72e-418a-8749-1cabb2c01f93", "timestamp": "2026-01-03T08:39:35.300Z" } { "parentUuid": "9132588c-c72e-418a-8749-1cabb2c01f93", "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "slug": "sequential-percolating-whale", "type": "user", "message": { "role": "user", "content": [ { "tool_use_id": "ccr_tool_oh4bgfaa8g", "type": "tool_result", "content": [ { "type": "text", "text": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```" }, { "type": "text", "text": "agentId: a106497 (for resuming to continue this agent's work if needed)" } ] } ] }, "uuid": "994e03c7-abc3-4fd6-9338-e57337290683", "timestamp": "2026-01-03T08:41:02.585Z", "toolUseResult": { "status": "completed", "prompt": "クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。", "agentId": "a106497", "content": [ { "type": "text", "text": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```" } ], "totalDurationMs": 87274, "totalTokens": 10019, "totalToolUseCount": 3, "usage": { "input_tokens": 468, "output_tokens": 140, "cache_read_input_tokens": 9411 } } } { "parentUuid": "994e03c7-abc3-4fd6-9338-e57337290683", "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "slug": "sequential-percolating-whale", "message": { "id": "msg_1767429664208", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```" } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 } }, "type": "assistant", "uuid": "9136c4e9-59a6-4642-82fd-7e2dfa81209c", "timestamp": "2026-01-03T08:41:05.118Z" }
どうもこちらにはサブエージェントのログは入っていなさそうです。
サブエージェントの呼び出しと結果が連続しています。
{ "parentUuid": "78835e0a-b484-422b-861e-07548efea975", "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "message": { "id": "msg_1767429575282", "type": "message", "role": "assistant", "content": [ { "type": "tool_use", "id": "ccr_tool_oh4bgfaa8g", "name": "Task", "input": { "subagent_type": "java-cli-engineer", "description": "Create and run Java program", "prompt": "クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。" } } ], "model": "gemini-2.5-flash", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 15840, "output_tokens": 68, "cache_read_input_tokens": 0 } }, "type": "assistant", "uuid": "9132588c-c72e-418a-8749-1cabb2c01f93", "timestamp": "2026-01-03T08:39:35.300Z" } { "parentUuid": "9132588c-c72e-418a-8749-1cabb2c01f93", "isSidechain": false, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "slug": "sequential-percolating-whale", "type": "user", "message": { "role": "user", "content": [ { "tool_use_id": "ccr_tool_oh4bgfaa8g", "type": "tool_result", "content": [ { "type": "text", "text": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```" }, { "type": "text", "text": "agentId: a106497 (for resuming to continue this agent's work if needed)" } ] } ] }, "uuid": "994e03c7-abc3-4fd6-9338-e57337290683", "timestamp": "2026-01-03T08:41:02.585Z", "toolUseResult": { "status": "completed", "prompt": "クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。", "agentId": "a106497", "content": [ { "type": "text", "text": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```" } ], "totalDurationMs": 87274, "totalTokens": 10019, "totalToolUseCount": 3, "usage": { "input_tokens": 468, "output_tokens": 140, "cache_read_input_tokens": 9411 } } }
agentIdの値がa106497というのがポイントですね。
これはagent-〜.jsonlのファイル名の一部にそのまま一致します。ということは、これが起動したサブエージェントのログでしょう。
$ cat agent-a106497.jsonl | jq { "parentUuid": null, "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "type": "user", "message": { "role": "user", "content": "クラス名がAppで「Hello SubAgent！！」と出力するJavaプログラムを単一のJavaソースコードとして作成し、実行してください。Mavenは使用しないでください。" }, "uuid": "a5d7f7e6-3023-46f8-a69a-aeebfeae0a01", "timestamp": "2026-01-03T08:39:35.316Z" } { "parentUuid": "a5d7f7e6-3023-46f8-a69a-aeebfeae0a01", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "message": { "id": "msg_1767429577908", "type": "message", "role": "assistant", "content": [ { "type": "thinking", "thinking": "(no content)", "signature": "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" } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 9677, "output_tokens": 67, "cache_read_input_tokens": 0 } }, "type": "assistant", "uuid": "dafa9eb4-3215-4c26-aa94-a1b983260de9", "timestamp": "2026-01-03T08:39:37.914Z" } { "parentUuid": "dafa9eb4-3215-4c26-aa94-a1b983260de9", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "message": { "id": "msg_1767429577908", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "(no content)" } ], "model": "gemini-2.5-flash", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 9677, "output_tokens": 67, "cache_read_input_tokens": 0 } }, "type": "assistant", "uuid": "e6bb04d8-6551-4498-9c27-3fded38da13f", "timestamp": "2026-01-03T08:39:37.918Z" } { "parentUuid": "e6bb04d8-6551-4498-9c27-3fded38da13f", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "message": { "id": "msg_1767429577908", "type": "message", "role": "assistant", "content": [ { "type": "tool_use", "id": "ccr_tool_z9x52k0n6k", "name": "Write", "input": { "file_path": "/home/user/projects/test/App.java", "content": "public class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n" } } ], "model": "gemini-2.5-flash", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 9677, "output_tokens": 67, "cache_read_input_tokens": 0 } }, "type": "assistant", "uuid": "a26097c2-1976-4107-bde7-d3e87073d57c", "timestamp": "2026-01-03T08:39:37.922Z" } { "parentUuid": "a26097c2-1976-4107-bde7-d3e87073d57c", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "slug": "sequential-percolating-whale", "type": "user", "message": { "role": "user", "content": [ { "tool_use_id": "ccr_tool_z9x52k0n6k", "type": "tool_result", "content": "File created successfully at: /home/user/projects/test/App.java" } ] }, "uuid": "15f879a8-622d-434f-bd1f-c5b1a98a5f10", "timestamp": "2026-01-03T08:39:38.333Z", "toolUseResult": { "type": "create", "filePath": "/home/user/projects/test/App.java", "content": "public class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n", "structuredPatch": [], "originalFile": null } } { "parentUuid": "15f879a8-622d-434f-bd1f-c5b1a98a5f10", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "slug": "sequential-percolating-whale", "message": { "id": "msg_1767429581159", "type": "message", "role": "assistant", "content": [ { "type": "thinking", "thinking": "(no content)", "signature": "CiQBcsjafPMFNax2yl5ottw12i6dHHWL0ZL05Jt6axQXTKVcfFQKWwFyyNp8llWmxn+vq1SnD/SgWZHCInU4oda1LZbTE1Jvyzv3hqNFxqL870DN0ZegERWz5fQ8vEQ193bCIqXZ5x8PH9vQlHpKbPvx9KtfMp3fznFsa0qmWm9TcfQKZgFyyNp8Mh53ajfLi+hGZ/UMbz7QoZgvA++9QYIob9xxB40dc/tt8k/vY/aby+r8UYeRDD+mLJJc7ntmoreCg48c+WdoVPG1Kg+SNHyhMTAi8dJX7Gr0k+/4anluGwtq2R61+8ehUw==" } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 } }, "type": "assistant", "uuid": "c30c2bb6-e834-431f-b884-d4c9b53e9cc7", "timestamp": "2026-01-03T08:39:41.163Z" } { "parentUuid": "c30c2bb6-e834-431f-b884-d4c9b53e9cc7", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "slug": "sequential-percolating-whale", "message": { "id": "msg_1767429581159", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "(no content)" } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 10059, "output_tokens": 33, "cache_read_input_tokens": 0 } }, "type": "assistant", "uuid": "860e262e-e4c6-46a4-ba3b-de91d8ee2405", "timestamp": "2026-01-03T08:39:41.168Z" } { "parentUuid": "860e262e-e4c6-46a4-ba3b-de91d8ee2405", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "slug": "sequential-percolating-whale", "message": { "id": "msg_1767429581159", "type": "message", "role": "assistant", "content": [ { "type": "tool_use", "id": "ccr_tool_hcl1t68y01a", "name": "Bash", "input": { "command": "javac /home/user/projects/test/App.java", "description": "Compile App.java" } } ], "model": "gemini-2.5-flash", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 10059, "output_tokens": 33, "cache_read_input_tokens": 0 } }, "type": "assistant", "uuid": "b4c5bf90-427a-4d46-9b45-3bc7f01dbd45", "timestamp": "2026-01-03T08:39:41.173Z" } { "parentUuid": "b4c5bf90-427a-4d46-9b45-3bc7f01dbd45", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "slug": "sequential-percolating-whale", "type": "user", "message": { "role": "user", "content": [ { "tool_use_id": "ccr_tool_hcl1t68y01a", "type": "tool_result", "content": "", "is_error": false } ] }, "uuid": "b989a4e8-a76d-4c1c-aa9c-bfa068fab53d", "timestamp": "2026-01-03T08:39:41.594Z", "toolUseResult": { "stdout": "", "stderr": "", "interrupted": false, "isImage": false } } { "parentUuid": "b989a4e8-a76d-4c1c-aa9c-bfa068fab53d", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "slug": "sequential-percolating-whale", "message": { "id": "msg_1767429583744", "type": "message", "role": "assistant", "content": [ { "type": "thinking", "thinking": "(no content)", "signature": "CiQBcsjafN6QvG1lRXcfH3zTPKqszDaOy2IABd1qOKj70FW6TvkKbwFyyNp8w6PFEXGk/zE4ME5X9C44+GnvZcTK5XJrukR2zawLgZTbKAe0waaOb70Zq3qwx/k7GhcminM0uXUqJFxDCiL0qjutvCnjFm9M9mr32kKdABhk9nXY4T/2Yd/wOwrhe81TtqgCOqbIh8vbsw==" } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 } }, "type": "assistant", "uuid": "1d48ce78-d0e7-4fae-837f-97667f0ddfad", "timestamp": "2026-01-03T08:39:43.749Z" } { "parentUuid": "1d48ce78-d0e7-4fae-837f-97667f0ddfad", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "slug": "sequential-percolating-whale", "message": { "id": "msg_1767429583744", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "(no content)" } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 } }, "type": "assistant", "uuid": "7272d0a3-3c09-411f-abb9-3f74361cde65", "timestamp": "2026-01-03T08:39:43.924Z" } { "parentUuid": "7272d0a3-3c09-411f-abb9-3f74361cde65", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "slug": "sequential-percolating-whale", "message": { "id": "msg_1767429583744", "type": "message", "role": "assistant", "content": [ { "type": "tool_use", "id": "ccr_tool_s6683pirmjh", "name": "Bash", "input": { "command": "java -cp /home/user/projects/test App", "description": "Execute the compiled App class" } } ], "model": "gemini-2.5-flash", "stop_reason": null, "stop_sequence": null, "usage": { "input_tokens": 0, "output_tokens": 0 } }, "type": "assistant", "uuid": "d77eeb53-bd2a-45ff-9398-995661ffe14f", "timestamp": "2026-01-03T08:39:43.928Z" } { "parentUuid": "d77eeb53-bd2a-45ff-9398-995661ffe14f", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "slug": "sequential-percolating-whale", "type": "user", "message": { "role": "user", "content": [ { "tool_use_id": "ccr_tool_s6683pirmjh", "type": "tool_result", "content": "Hello SubAgent！！", "is_error": false } ] }, "uuid": "d2dc312c-29ff-418e-b079-2797a95e90b6", "timestamp": "2026-01-03T08:39:44.038Z", "toolUseResult": { "stdout": "Hello SubAgent！！", "stderr": "", "interrupted": false, "isImage": false } } { "parentUuid": "d2dc312c-29ff-418e-b079-2797a95e90b6", "isSidechain": true, "userType": "external", "cwd": "/home/user/projects/test", "sessionId": "b425ff87-3f02-4242-804d-7459af5f20f6", "version": "2.0.76", "gitBranch": "", "agentId": "a106497", "slug": "sequential-percolating-whale", "message": { "id": "HtZYaaC1F9iB0-kP7Z6PoQo", "type": "message", "role": "assistant", "model": "gemini-2.5-flash", "content": [ { "type": "text", "text": "ファイル `/home/user/projects/test/App.java` を作成し、コンパイルして実行しました。\n\n**作成したJavaソースコード:**\n\n```java\npublic class App {\n public static void main(String[] args) {\n System.out.println(\"Hello SubAgent！！\");\n }\n}\n```\n\n\n**コンパイルコマンド:**\n\n```bash\njavac /home/user/projects/test/App.java\n```\n\n\n**実行コマンド:**\n\n```bash\njava -cp /home/user/projects/test App\n```\n\n\n**プログラムの出力:**\n\n```\nHello SubAgent！！\n```" }, { "type": "thinking", "thinking": "(no content)", "signature": "Ct8CAXLI2nyp8CdL9HfgABrPtss1lwLH78rWlXOz0CnqXdd//JTKMjwafIvLErJBf0o32sycDSuiqFQzvd6L+S4m0+OMMUYt9X+1qV0YdkTDyi9a0soOgVDQaC0w9b2sUa+8zxv9Xec73A3gD33+H+X3KSG061mcEVmyd/87z9WpxL5wOAok1GRdJbr7jNGh8wsb2A9/07RS8qkp8yMn61gHpoMDrPoy7jFommfghU1CdLw8tnHlFfUKreCm1dI/Kwx1SR8syGz5LFYAqe7FochQL0E+JimhPAVtGeIJ/vzJE2y5LbR4LZr4ejymsywzXvlXxRHfw1cAqWZxDFNknIfNa9itPtxZ2Noh78fMEFv7p7wAI/f/uQbptBSLMDDnT3BvD5KZfyKhH/KWpEmWsPl4kQpzPO0KpGenSJTCWQy93Thd5Yj5MX2FVybyYNq0gwGDjb5fJRb34+YAW0cwAAbc" } ], "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 468, "output_tokens": 140, "cache_read_input_tokens": 9411 } }, "type": "assistant", "uuid": "42cf5125-e08c-4edf-ad70-2129a0e241f5", "timestamp": "2026-01-03T08:41:02.578Z" }
こちらには、トランスクリプトに入りそうなログが並んでいますね。
というわけで、トランスクリプトにはメインのエージェントのログのみが記録され、サブエージェントのログはagent-〜.jsonlに
含まれるようです。
メインエージェントとサブエージェントのログを一括で見たい場合は、--output-format stream-json --verboseオプションを
使った方がよさそうです。
おわりに
Claude Codeのトランスクリプトログを確認してみました。
また、関係が気になったので--output-format stream-json --verboseオプションとの比較やサブエージェントを含めた挙動に
ついて見てみました。
てっきりサブエージェントを含めて見るならトランスクリプトを見た方がいいのではという先入観があったのでちょっと意外
でした。
ちゃんと確認しましょう、という話ですね。
もっとも、トランスクリプトログも--output-format stream-json --verboseオプションの出力内容もドキュメントに
まとまっているわけではないので、今後変わることが十分ありえることも注意かなと思います。
