Changes on 2026-07-07

1. **Analyze the Request:** * **Role:** World-class programmer analyzing documentation changes. * **Input:** A diff of a single file (`CHANGELOG.md.md`). * **Output:** Markdown format, Chinese language. * **Structure:** 1. Overall Summary. 2. Key Themes. 3. Impact Level. 4. Action Items. 2. **Analyze the Input Data:** * **File:** `CHANGELOG.md.md` (Note the double extension, likely a typo in the repo but effectively a changelog). * **Version:** 2.1.204. * **Change:** "Fixed hook events not streaming during SessionStart hooks in headless sessions, which could cause remote workers to be idle-reaped mid-hook". * **Context:** Headless sessions, SessionStart hooks, event streaming, remote workers, idle reaping (terminating idle processes). 3. **Synthesize the Analysis:** * **Overall Summary:** The release (v2.1.204) addresses a specific bug where event streaming failed during `SessionStart` hooks in headless sessions. This bug caused remote workers to be prematurely terminated (idle-reaped) while the hook was executing. * **Key Themes:** * Bug fix / Reliability. * Headless mode stability. * Hook execution lifecycle. * Resource management (idle-reaping logic). * **Impact Level:** * *High* or *Medium*. Let's evaluate. * If a user uses headless sessions with `SessionStart` hooks and remote workers, their workers likely died randomly. This is a critical reliability issue for specific workflows. * If they don't use that specific feature, impact is None. * However, for *affected* users, this is a blocking bug. Generally, a "fix" for a crash/termination is High priority. * *Reasoning:* The previous behavior caused active workers to be killed unexpectedly, breaking automation. The fix ensures stability in remote execution scenarios. * **Action Items:** * Upgrade to v2.1.204 immediately if using headless sessions with remote workers. * Verify that long-running `SessionStart` hooks now complete successfully without worker termination. * Review error logs (if any existed previously) to ensure this specific issue is gone. 4. **Drafting the Content (in Chinese):** * *Summary:* 2.1.204 版本修复了一个关键 Bug：在无头模式下执行 SessionStart 钩子时，事件流中断导致远程工作线程被意外回收的问题。 * *Themes:* * 无头会话 稳定性。 * 钩子 生命周期管理。 * 远程资源调度 (Idle reaping)。 * *Impact:* High. * Reasoning: 该 Bug 会导致核心功能（远程 Worker）在执行关键任务时被误杀，直接导致任务失败。 * *Action Items:* * 升级至 v2.1.204。 * 如果您使用无头会话和 SessionStart 钩子，请测试您的部署。 * 忽略之前的关于 Worker 突然被终止的排查日志。 5. **Refining the Output:** * Make it concise and professional. * Use the exact terms: "headless sessions", "SessionStart hooks", "idle-reaped". * *Drafting Section 1:* 本次更新 (v2.1.204) 修复了在无头会话 中，SessionStart 钩子期间事件流中断导致远程 Worker 被意外回收的问题。 * *Drafting Section 2:* * **远程执行稳定性**: 解决了远程工作线程因缺乏心跳而被误判为空闲并终止的缺陷。 * **钩子生命周期**: 确保 SessionStart 钩子执行期间通信保持活跃。 * *Drafting Section 3:* **High**。对于依赖无头模式和 SessionStart 钩子的远程部署，此修复防止了任务在初始化阶段因 Worker 被杀而崩溃，属于严重的功能性修复。 * *Drafting Section 4:* * **立即升级**: 如果您使用远程 Worker 和无头会话，务必升级到 v2.1.204。 * **验证流程**: 确认涉及 SessionStart 钩子的部署不再出现 Worker 意外掉线的情况。 * **回溯排查**: 检查历史日志中标记为 "idle-reaped" 的失败任务是否重试成功。 6. **Final Polish:** Ensure markdown formatting is clean. * *Check:* The file name is `CHANGELOG.md.md`, weird but irrelevant to the content analysis. * *Check:* The content is a single bullet point addition. 7. **Final Output Generation:** (Matches the provided good response).

1. **Analyze the Request:** * **Role:** World-class programmer analyzing documentation changes. * **Input:** 6 pages of diffs (markdown format). * **Output Format:** Markdown, concise, insightful, focused on developers, Chinese language. * **Structure:** Overall Summary, Key Themes, Impact Level, Action Items. 2. **Analyze the Diffs:** * **Page 1: `about-claude/models/migration-guide.md`** * *Change:* Multiple occurrences of `code_execution_20250825` updated to `code_execution_20260521`. * *Context:* Migration guides for Claude 3.x to 4.x, Sonnet 4.6, Sonnet 4.5. * *Meaning:* The version number for the code execution tool has been bumped (likely to the latest version). Developers need to update their tool usage configurations if they are following migration paths. * **Page 2: `api/beta-headers.md`** * *Change:* Significant rewrite. Expanded introduction, added code examples for C#, Go, Java, PHP, Ruby. Improved error handling documentation. Added "Next steps" cards. * *Meaning:* Documentation is becoming more comprehensive and polyglot-friendly. It clarifies how to use beta headers across different SDKs, not just Python/TS. It explicitly names new beta features like `files-api-2025-04-14`. * **Page 3: `build-with-claude/structured-outputs.md`** * *Change:* Added a warning section about "Enum value casing". * *Meaning:* Structured outputs might return enum values with different capitalization (specifically first letter after a space) than defined in the schema. Developers must handle case-insensitive comparison or accept variation. This is a subtle but potentially breaking bug source. * **Page 4: `build-with-claude/claude-in-microsoft-foundry.md`** * *Change:* Updates to Foundry integration guide. Added mentions of Claude Opus 4.8 and Sonnet 5. Added Azure Identity library installation steps for Entra ID auth. Updated SDK versions (Java). Added installation tabs for Go and Ruby (though noting native support limitations). * *Meaning:* Better support for Azure/Foundry users, specifically regarding authentication (Entra ID) and newer models. * **Page 5: `agents-and-tools/agent-skills/overview.md`** * *Change:* Updated prerequisites. Changed requirement from specific beta headers (including `code-execution-2025-08-25`) to just using the "code execution tool" + two specific beta headers. * *Meaning:* Simplifies the dependency. Aligns with Page 1 where the code execution tool version seems to be handled differently (perhaps the version is implied or automatic now, or just distinct from the beta header name). *Correction*: Page 1 updated the *tool version string* in the config, Page 5 updated the *header name*. The header `code-execution-2025-08-25` was removed from the required list here, implying the functionality might be standard or handled by the tool definition itself now. * **Page 6: `CHANGELOG.md.md` (CLI Changelog)** * *Change:* Version 2.1.203 changelog. * *Meaning:* Massive bug fix release for the CLI (Claude Code). Fixes for background sessions, macOS performance, memory leaks, Windows PATH issues, auto-upgrades, etc. Feature: Warning before login expiry. VSCode toggle for remote control. 3. **Synthesize and Structure the Analysis:** * **Overall Summary:** The update primarily focuses on tool version updates (Code Execution), expanding SDK documentation support, critical behavior clarifications for Structured Outputs (enum casing), and a significant CLI maintenance release fixing stability and performance issues. * **Key Themes:** * *Tool Versioning:* `code_execution` tool version updated to `20260521` in migration guides. * *Documentation Expansion:* `beta-headers.md` now includes examples for C#, Go, Java, PHP, Ruby. * *Behavior Clarification:* Structured Outputs do not guarantee case-sensitivity for enums. * *Azure/Foundry:* Added support for Entra ID authentication details and newer models. * *CLI Stability:* Massive bugfix release (v2.1.203) addressing background session reliability and macOS performance. * **Impact Level:** * *Medium.* * *Reasoning:* While mostly documentation, the `code_execution` version update and the `enum` casing behavior are significant for developers relying on strict tool definitions and schema validation. The CLI fixes are high-impact for users of the CLI tool. * **Action Items:** * Update `code_execution` tool version to `20260521` in your migration configs if applicable. * Implement case-insensitive comparison for string enums in Structured Outputs. * Review the new CLI version 2.1.203 to resolve background agent and performance issues. * If using Azure Foundry, install the Azure Identity library for Entra ID auth. * Check `beta-headers.md` for SDK-specific examples if you are using non-Python/TS languages. 4. **Drafting the Response (in Chinese):** * *Drafting Summary:* 本次更新主要涉及代码执行工具版本更新、SDK 文档覆盖范围的扩展（新增多语言示例）、结构化输出中枚举大小写行为的明确说明，以及 CLI 工具的重要稳定性修复。 * *Drafting Themes:* 工具版本更新、文档扩展、结构化输出行为修正、Azure/Foundry 增强、CLI 稳定性。 * *Drafting Impact:* Medium (中等). 理由：虽然主要是文档更新，但结构化输出的枚举大小写问题和工具版本变更直接影响代码逻辑和兼容性。CLI 的修复对活跃用户很重要。 * *Drafting Actions:* 1. 将 `code_execution` 工具版本更新至 `20260521`。 2. 修改代码以不区分大小写的方式比较结构化输出中的字符串枚举值。 3. 升级 CLI 至 v2.1.203 以解决后台会话和性能问题。 4. 如果使用 Azure Foundry，请安装 Azure Identity 库以支持 Entra ID 认证。 5. 参考 `beta-headers.md` 查看新语言（如 Go, Java 等）的使用示例。 5. **Refining the Output:** Ensure tone is professional ("world-class programmer"). Make the markdown clean. * *Self-Correction during drafting:* Page 5 (`agent-skills`) removed `code-execution-2025-08-25` from the required beta headers list, but kept `skills` and `files` headers. This suggests the code execution tool capability is now managed via the tool definition/version string rather than a beta header for Skills. This aligns with Page 1 emphasizing the tool version string. I should mention the tool version update as the primary action. 6. **Final Polish (Chinese):** (Translating thoughts to final output) * **Summary:** 本次更新集成了代码执行工具 (`code_execution`) 的最新版本标识，大幅扩展了 Beta 功能文档的多语言支持，明确了结构化输出中枚举值大小写不保证一致的行为，并发布了包含大量稳定性修复的 CLI 新版本。 * **Themes:** * **工具版本迁移**：迁移指南中的代码执行工具版本号从 `20250825` 更新至 `20260521`。 * **文档扩展**：`beta-headers` 新增 C#, Go, Java, PHP, Ruby 的 SDK 示例代码。 * **行为明确**：结构化输出不再保证字符串 `enum` 和 `const` 值的大小写一致性。 * **Azure 集成增强**：更新了 Microsoft Foundry 指南，增加了 Entra ID 认证所需的依赖库说明。 * **CLI 重大修复**：CLI v2.1.203 版本修复了 macOS 内存误检、后台会话僵死、PATH 继承等关键问题。 * **Impact:** **Medium (中等)**。 * **理由**：虽然多为文档调整，但结构化输出的枚举大小写变更属于潜在的破坏性行为（Breaking behavior），需要开发者修改校验逻辑；工具版本的更新也意味着 API 调用规范的调整。CLI 的修复对重度用户影响显著。 * **Action Items:** 1. **更新工具版本**：若正在进行模型迁移，请将 `code_execution` 工具版本更新至 `20260521`。 2. **调整枚举校验逻辑**：在使用结构化输出时，对字符串枚举值的校验应采用不区分大小写的方式，避免因首字母大小写差异导致逻辑错误。 3. **升级 CLI**：建议升级 CLI 至 v2.1.203 以解决 macOS 和后台任务相关的性能与稳定性问题。 4. **检查 Azure 认证**：如果在 Foundry 中使用 Entra ID，请确保安装了 `azure-identity` 依赖库。 5. **查阅 Beta 文档**：使用 C#、Java 等 SDK 的开发者应参考更新后的 `beta-headers` 文档以获取正确的调用方式。 7. **Final Review against constraints:** Concise? Yes. Insightful? Yes. Markdown? Yes. Chinese? Yes. Focus on what matters? Yes. * *One detail:* The CHANGELOG mentions "Added a warning when your login is about to expire". This is a good UX detail but maybe not a critical "action item" compared to enum casing. I'll stick to the top 5 high-impact actions. * *Refining Action 1:* Make sure to reference the specific version `20260521`. 8. **Generate Output.** (Proceeds to generate the markdown response).

1. **Analyze the Request:** * **Role:** World-class programmer analyzing documentation changes. * **Task:** Analyze a batch of 5 documentation pages changes. * **Format:** Markdown, concise, insightful. * **Language:** Chinese. * **Specific Requirements:** Overall summary, key themes, impact level with reasoning, action items. 2. **Analyze the Changes (Page by Page):** * **Page 1: `hooks.md` (+8 / -7)** * *Change 1:* Added specific info about naming conventions for "plugin-bundled MCP servers". Tool names now look like `mcp__plugin_<plugin-name>_<server-name>__<tool>`. * *Change 2:* Updated the table for `mcp_tool` hook fields. The `server` field description now explicitly states that for plugin-bundled servers, you must use the scoped name `plugin:<plugin-name>:<server-name>`, not the bare key. * *Change 3:* Updated `transcript_path` description to warn about async writing and recommend using `last_assistant_message` on Stop events for getting the current turn's text. * **Page 2: `hooks-guide.md` (+1 / -1)** * *Change:* Updated the example text regarding MCP tool naming to mention the scoped server segment for plugin-bundled servers (`mcp__plugin_my-plugin_db__query`). * **Page 3: `mcp.md` (+5 / -3)** * *Change 1:* Updated CLI usage tips. Added short flags (`-s` for `--scope`, `-e` for `--env`, `-t` for `--transport`, `-H` for `--header`). * *Change 2:* Updated the section on "Plugin-provided MCP servers". Clarified that the full scoped name must be used in permission rules, skill `allowed-tools`, subagent tools, and *hooks*. * *Change 3:* Explicitly stated that hook matchers against bare server keys won't work for plugin-bundled servers. * *Change 4:* Defined the server registration scoped name format: `plugin:<plugin-name>:<server-name>` for the `server` field in hooks. * **Page 4: `plugins-reference.md` (+1 / -0)** * *Change:* Added a note to the hooks section about targeting the plugin's own bundled MCP server. Reiterates the scoped naming convention (`mcp__plugin_...`) and `server` field format (`plugin:...`). * **Page 5: `setup.md` (+0 / -3)** * *Change:* Removed duplicate `theme={null}` strings from code block language specifiers. This is purely a formatting cleanup fix, likely due to a linter or generator issue fix. 3. **Synthesize and Categorize:** * **Theme 1: Plugin-bundled MCP Server Naming Semantics (Major Theme)** * This affects Hooks (`hooks.md`, `plugins-reference.md`), MCP configuration (`mcp.md`), and Guides (`hooks-guide.md`). * The core change is clarifying how to reference tools and servers that come bundled inside a plugin. * Tool name format: `mcp__plugin_<plugin-name>_<server-name>__<tool>` * Server name format (in hooks): `plugin:<plugin-name>:<server-name>` * *Implication:* Old matchers based on bare server keys will fail for plugin tools. * **Theme 2: CLI Improvements** * Short flags added for MCP configuration commands (`-s`, `-e`, `-t`, `-H`). * **Theme 3: Technical Correction/Docs Maintenance** * `hooks.md` clarification on `transcript_path` async behavior. * `setup.md` removal of duplicate code fence attributes. 4. **Draft the Analysis (in Chinese):** * *Overall Summary:* 本次更新主要阐明了与 Plugin-bundled MCP Server 相关的命名规范和引用方式，同时增加了一些 CLI 便利性标志。 * *Key Themes:* * **Plugin-bundled MCP 命名规范**：引入了带作用域的命名规则。 * **Hooks 配置变更**：匹配器和 `server` 字段需要使用新的完整命名。 * **CLI 增强**：添加了配置 MCP 服务器的短命令标志。 * *Impact Level:* **Medium** (Reasoning: 这是一个功能澄清/强化。虽然不是“Breaking Change”导致现有代码崩溃，但如果开发者正在编写针对插件打包 MCP 服务器的 Hooks，使用旧命名方式将导致逻辑失效——即“不会触发”。这是有功能的代码行为改变。) * *Action Items:* * 如果你的 Hooks 需要匹配插件提供的 MCP 工具，请更新工具名称为 `mcp__plugin_...` 格式。 * 更新 `mcp_tool` hook 中的 `server` 字段为 `plugin:...` 格式。 * 使用新的短命令标志以提高 CLI 效率。 * 注意 `transcript_path` 的异步写入特性，如需最新消息请使用 `last_assistant_message`。 5. **Refine and Format (Markdown):** * *Self-Correction during drafting:* Ensure the distinction between the *tool name* format and the *server name* format is clear in the summary. The tool name uses underscores and `mcp__`, while the server reference in hooks uses colons `plugin:...`. 6. **Final Output Generation** (Proceeding to generate the Chinese response based on step 5). * *Check against constraints:* Concise? Yes. Insightful? Yes. Markdown? Yes. Chinese? Yes. Batch analysis? Yes. * *Drafting specific points:* * *Summary:* 聚焦于插件化 MCP 服务器的命名规范及 CLI 优化。 * *Themes:* 命名空间引入，Hook 兼容性，CLI 简化。 * *Impact:* Medium。因为现有的针对插件 MCP 的 Hook 规则如果不更新将无法触发。 * *Actions:* 更新 Hook 正则，更新 server 字段，注意 transcript 延迟。 7. **Final Polish:** Ensure tone is professional and "world-class". (e.g., use precise terminology like "Scoped server segment"). *(Self-Correction on Impact Level)*: Is it High? Only if you are heavily using plugins that bundle MCP servers and relying on hooks to control them. If not, it's Low. "Medium" is the safest and most accurate overall assessment because it silently breaks logic for specific use cases without throwing an error (matcher never fires). *(Self-Correction on Action items)*: Keep it actionable. "Update your regex" is better than "Read the docs". Let's write the response.