Changes on 2026-09-18

1. **Analyze the Request**: * **Role**: World-class programmer analyzing documentation changes. * **Input**: Diff of 3 documentation pages (`claude-code-on-the-web.md`, `llm-gateway.md`, `slack.md`). * **Output**: Concise analysis in markdown, in Chinese. * **Structure**: 1. Overall Summary (1-2 sentences). 2. Key Themes. 3. Impact Level with reasoning. 4. Action items for developers (max 5 bullets). 2. **Analyze the Diffs**: * **Page 1: `claude-code-on-the-web.md`** * *Change*: Added a new paragraph explaining that the diff view compares against the base branch by default, but users can select "Compare against" to pick other branches. * *Why*: Enhances usability/flexibility of code review sessions. Users aren't limited to the base branch. * **Page 2: `llm-gateway.md`** * *Change*: Refined the explanation of "Provider switching". Added specific detail: "A gateway that exposes a provider's own format ties the client configuration to that provider and changes what Claude Code sends and which defaults it applies." Linked to specific docs regarding client behavior changes. * *Why*: Improves accuracy and warns developers about the specific behavioral implications (data format and defaults) when using non-Anthropic format gateways. * **Page 3: `slack.md`** * *Change*: Updated troubleshooting steps for environment issues. Instead of just saying "If you're an Owner, recreate...", it now says: "If you're an Owner and the environment is your own, share it... Otherwise, an Owner recreates it...". Also split the paragraph for better readability. * *Why*: Provides a more efficient path (sharing vs recreating) to fix a specific issue (personal vs org environment mismatch in Slack/Claude Tag). 3. **Synthesize & Structure the Output (in Chinese)**: * **Overall Summary**: The updates focus on refining user workflows, specifically enhancing code review flexibility, clarifying Gateway configuration implications, and streamlining environment troubleshooting for Slack integration. * *Draft*: 本次更新主要聚焦于改进用户工作流程，具体包括增强代码审查的灵活性、阐明 Gateway 配置的行为影响，以及优化 Slack 集成中的环境问题排查步骤。 * **Key Themes**: * *Usability/UX*: Improved options for diffing branches and easier fixes for Slack environments. * *Technical Clarity*: Better explanation of how Gateway formats affect client behavior (Claude Code). * *Troubleshooting*: More specific guidance for resolving permission/environment conflicts. * **Impact Level**: **Low**. These are documentation updates that clarify existing features or provide better workarounds. They don't introduce breaking changes or require code changes from the developer immediately, though the Gateway note is technically important to understand. * **Action Items**: * If you use Claude Code on the web, try the new "Compare against" feature for diffs. * If implementing a Gateway, ensure it uses the Anthropic-format endpoint to preserve Claude Code defaults; otherwise, expect different behavior. * If encountering Slack channel session failures, try sharing your personal environment with the org before recreating it. * Review the updated Gateway docs to understand how upstream formats affect client defaults. 4. **Refine the Language (Chinese)**: * *Summary*: 本次文档更新主要围绕优化开发体验，包括增强代码审查时的分支对比能力、澄清网关格式对客户端行为的具体影响，以及简化 Slack 集成中环境权限问题的解决流程。 * *Themes*: * **工作流灵活性**: 在 Web 端代码审查中增加了对比任意分支的功能。 * **配置精准性**: 明确了非 Anthropic 格式网关对 Claude Code 默认行为的影响。 * **故障排查优化**: 为 Slack 环境权限问题提供了更高效的修复路径（共享而非重建）。 * *Impact*: Low. (Just clarifications and usability enhancements). * *Action Items*: * Review the new diff comparison options in Claude Code on the web. * Check Gateway implementation if using provider-specific formats to understand behavior changes. * Use the "share environment" method for Slack integration issues to save time. 5. **Final Review against Constraints**: * Markdown format? Yes. * Concise? Yes. * Chinese language? Yes. * 3 pages analyzed? Yes. 6. **Final Polish**: Ensure the tone is professional and insightful. (Proceeding to generate output).

1. **Analyze the Request:** * **Role:** World-class programmer analyzing documentation changes. * **Task:** Analyze a single batch of documentation changes (10 pages). * **Output Format:** Markdown, concise, insightful. * **Language:** Chinese (requested in the prompt). * **Focus:** What matters to developers. * **Specifics:** Overall Summary, Key Themes, Impact Level, Action Items. 2. **Analyze the Diff Data (Page by Page):** * **`desktop.md` (+7/-7):** * *Change:* Updated "View modes" documentation. "Summary" mode is replaced/removed (legacy versions only). New "Thinking" mode added. * *Detail:* "Thinking" mode shows tool call summaries + Claude's reasoning (thinking). "Verbose" includes everything + thinking. "Summary" is deprecated (older versions only). * *Implication:* UI/UX change for desktop users. New visibility into model reasoning. * **`hooks.md` (+1/-0):** * *Change:* Clarified when `on_instructions_loaded` fires regarding `AGENTS.md`. * *Detail:* It doesn't fire when `AGENTS.md` is read directly via **Project instructions** setting, but it *does* fire when `CLAUDE.md` imports it or is symlinked to it. * *Implication:* Specific behavioral nuance for hook developers debugging context loading. * **`memory.md` (+84/-13):** * *Change:* Major rework of how `AGENTS.md` is handled. * *Detail:* Claude Code now natively supports reading `AGENTS.md` as project instructions, replacing or coexisting with `CLAUDE.md`. Previously, docs told users to import `AGENTS.md` into `CLAUDE.md`. Now, priority rules exist: If `AGENTS.md` exists and no `CLAUDE.md` exists, read `AGENTS.md`. If both exist, read `CLAUDE.md`. If `CLAUDE.md` imports `AGENTS.md`, it works as before. * *Implication:* Simplifies adoption for projects already using other agents (like Cursor, etc. - though specific names aren't in this diff, the implication of "AGENTS.md" implies interoperability). * **`overview.md` (+1/-1):** * *Change:* Updated text to mention `AGENTS.md` support alongside `CLAUDE.md`. * *Implication:* Consistency update reflecting the `memory.md` changes. * **`plugins-reference.md` (+4/-2):** * *Change:* Clarified why `yarn.lock`/`pnpm-lock.yaml` and `bunfig.toml` cause install skips. * *Detail:* Security hooks bypass `--ignore-scripts` for yarn/pnpm. `bunfig.toml` configures security scanners. * *Implication:* Fixes plugin packaging issues. If a plugin fails to install, developers need to switch to `npm` lockfiles or remove config files. * **`sub-agents.md` (+1/-1):** * *Change:* Added `AGENTS.md` to the list of files loaded into subagent context. * *Implication:* Subagents now get context from `AGENTS.md` if used as project instructions. * **`about-claude/model-deprecations.md` (+4/-1):** * *Change:* Added new models: `claude-mythos-5-1` (Active), `claude-mythos-5` (Active), `claude-mythos-preview` (Deprecated). * *Implication:* New model family (Mythos) available/announced. * **`build-with-claude/extended-thinking.md` (+1/-1):** * *Change:* Removed `--transform content` flag from an example `ant messages create` command. * *Implication:* Bug fix or API change in CLI usage. * **`build-with-claude/claude-on-vertex-ai.md` (+17/-18):** * *Change:* Model ID table update. * *Detail:* Added backticks to model IDs. Added `claude-opus-4-5`, `claude-sonnet-4`, `claude-opus-4-1`, `claude-opus-4`. Added deprecated links. * *Implication:* Updated compatibility list for Vertex AI. * **`build-with-claude/claude-in-microsoft-foundry.md` (+12/-12):** * *Change:* Model table update. * *Detail:* Formatting changes (backticks, centering). Added `claude-opus-4-5`. Checked Azure/Anthropic hosting columns. * *Implication:* Updated compatibility list for Foundry. 3. **Synthesize and Categorize:** * **Theme 1: AGENTS.md Integration (High Impact):** `memory.md`, `overview.md`, `sub-agents.md`, `hooks.md`. This is a big shift from "import AGENTS.md" to "Claude supports AGENTS.md natively". * **Theme 2: Desktop UI Enhancements:** `desktop.md`. "Thinking" mode is here. "Summary" mode is gone. * **Theme 3: Model Updates & API Fixes:** `model-deprecations.md` (Mythos), Vertex/Foundry docs (newer models), `extended-thinking.md` (CLI fix). * **Theme 4: Plugin Compatibility:** `plugins-reference.md`. Security/Maintainability focus. 4. **Draft the Response (in Chinese):** * *Overall Summary:* 重点在于 `AGENTS.md` 的原生支持，桌面端新增了 "Thinking" 视图模式，以及一系列模型和 CLI 的更新。 * *Key Themes:* * AGENTS.md 原生支持：无需导入或创建 CLAUDE.md，Claude Code 现在可直接读取 AGENTS.md。 * 新的视图模式：桌面端增加 "Thinking" 模式用于查看推理过程，废弃了 "Summary" 模式。 * 模型与平台更新：新增 Mythos 系列模型，更新了 Vertex AI 和 Microsoft Foundry 的模型列表。 * 插件安全策略：明确了插件依赖安装的安全限制（yarn/pnpm/bunfig）。 * *Impact Level:* Medium. While AGENTS.md support is significant, it's additive/compatible (mostly). The Thinking mode is a UI feature. Nothing seems "Breaking" in a way that stops existing workflows immediately (Summary mode is the only breaking/deprecated thing). * *Action Items:* * Check existing AGENTS.md usage. * Try "Thinking" mode. * Update plugins if using yarn/pnpm lockfiles. * Check model migration if using Mythos/Preview. 5. **Refine and Polish (Self-Correction during drafting):** * *Refinement on Impact:* Is it High? The AGENTS.md change is big for interoperability, but it's *easier* for devs, not harder. The "Summary" mode removal is minor. I'll stick with **Medium** but mention it's a positive improvement. * *Refinement on AGENTS.md nuance:* The hook change in `hooks.md` is a specific technical detail that matters to power users debugging hooks. I should mention it under themes or details. * *Language check:* Ensure professional tone. 6. **Final Output Construction (Markdown):** * **Summary:** 本次更新最显著的变化是 Claude Code 现已原生支持 `AGENTS.md` 作为项目指令，简化了与其他 AI 工具的协作流程。同时，桌面端引入了新的 "Thinking" 视图模式，并更新了多项模型列表和插件安装策略。 * **Themes:** 1. **原生支持 `AGENTS.md`**：大幅重写了 `memory.md`，现在 Claude 可以直接读取 `AGENTS.md`，不再强制要求将其导入到 `CLAUDE.md` 中。这影响上下文加载优先级和 Hooks 的触发时机。 2. **桌面端交互体验升级**：增加了 "Thinking" 模式（查看推理过程但折叠工具调用），旧版的 "Summary" 模式已被移除（仅旧版本保留）。 3. **模型生态扩展**：新增了 `claude-mythos-5-1` 等模型状态，并更新了 Vertex AI 和 Microsoft Foundry 平台上的可用模型列表。 4. **插件依赖管理收紧**：澄清了为何跳过 `yarn.lock` 和 `bunfig.toml` 的安装（出于安全考虑），建议插件作者改用 `npm` 锁文件。 * **Impact Level:** **Medium**。虽然 `AGENTS.md` 的集成方式发生了重大逻辑变更，但它主要是为了降低门槛而非破坏现有工作流。桌面端 "Summary" 模式的移除属于小的 UI 调整。 * **Action Items:** * 项目若已存在 `AGENTS.md`，确认其是否按预期被加载（若同时有 `CLAUDE.md` 则优先读取后者）。 * 在 Claude Desktop 中尝试新的 `Ctrl+O` "Thinking" 模式以调试模型推理过程。 * 若开发 Claude Code 插件，确保使用 `package-lock.json` 或 `npm-shrinkwrap.json` 以避免安装被跳过。 * 调试 Hooks 时注意，通过设置直接读取 `AGENTS.md` 不会触发 `on_instructions_loaded`，但通过导入或符号链接会触发。 7. **Final Review:** Matches constraints? Yes. Chinese? Yes. Markdown? Yes. Concise? Yes. **(Self-Correction specific to `hooks.md`):** The diff says "This event doesn't fire when Claude reads `AGENTS.md` directly... It does fire when a `CLAUDE.md` imports your `AGENTS.md`". This is a subtle but important distinction for debugging. **(Self-Correction specific to `desktop.md`):** "Summary mode" is listed as only available in versions before 1.46388.1. It's effectively deprecated for current users. 8. **Final Output Generation.** (Proceed to generate output based on step 6).

1. **Analyze the Request:** * **Role:** World-class programmer/developer tools expert. * **Task:** Analyze documentation changes (2 pages: `headless.md`, `CHANGELOG.md.md`) as a single batch. * **Output Format:** Concise, insightful analysis in Markdown. * **Language:** Chinese (requested by "请用中文回复"). * **Specific Sections Required:** Overall Summary, Key Themes, Impact Level, Action Items. 2. **Analyze Page 1: `headless.md`:** * *Change:* Removed "Requires Claude Code v2.1.181 or later" from the description of the `/config` command. * *Context:* The section describes how to change settings using `/config key=value`. * *Interpretation:* The feature is now standard or the version requirement is no longer relevant to highlight, likely because the minimum supported version has moved past this point, or the note is obsolete. It's a minor cleanup. 3. **Analyze Page 2: `CHANGELOG.md.md`:** * *Version:* 2.1.277. * *New Features:* * `AGENTS.md` support (fallback if `CLAUDE.md` missing, configurable). * Proxy improvements (`CLAUDE_GATEWAY_PROXY_IS_EGRESS_BOUNDARY`, upstream headers). * UI polish (waiting updates for background tasks). * *Bug Fixes (Mental Categorization):* * *Stability/Crashes:* Fixed hangs (`claude -p`, Agent SDK), unexpected logouts, startup hangs, crashes on malformed config (`theme`, `mcp`), crash on terminal color codes. * *Tools (Edit, Write, Grep):* Edit tool fixes (backslash handling, large edit errors), Write tool error on directory target, Grep/Glob error reporting on resource exhaustion. * *Plugin System:* Significant fixes for plugin installation, reloading, removal, marketplace policies, and LSP server handling. * *Headless/SDK:* Headless sessions now save cost/usage totals (important fix). * *Resuming/Sessions:* Fixes for `--resume`, history corruption, prompt cache misses. * *Network/Proxy:* Fixes for update checks, proxy handling, and telemetry. * *Observation:* This is a massive stability release with a lot of bug squashing (especially around plugins, tool execution, and headless mode), plus some feature additions for agent customization and proxying. 4. **Synthesize Across Pages:** * *Connection:* The `headless.md` change is minor version pruning. The `CHANGELOG.md.md` is the meat of the update, focusing on stability (crashes, hangs), correct tool behavior (Edit, Write), and better plugin/headless support. * *Themes:* Stability/Crash fixes, Tool accuracy (Edit/Write), Plugin system reliability, Headless/SDK improvements, Networking/Proxy enhancements. 5. **Drafting the Content (in Chinese):** * *Overall Summary:* Version 2.1.277 is primarily a maintenance release focused on stability, fixing numerous crashes, hangs, and tool execution errors (especially Edit and Write). It also introduces `AGENTS.md` support and improves proxy handling for enterprise environments. * *Draft (Chinese):* v2.1.277 主要是一个稳定性维护版本，修复了大量崩溃、挂起和工具执行错误（特别是编辑和写入工具）。同时也引入了 `AGENTS.md` 支持并改进了代理和企业网关的处理逻辑。 * *Key Themes:* * **Stability & Reliability:** Extensive fixes for crashes, hangs, and unexpected exits in headless/SDK modes and plugin management. * **Tool Corrections:** Fixes for `Edit` tool regex handling and `Write` tool error reporting. * **Plugin & Ecosystem:** Robust improvements to plugin installation, reloading, and marketplace policies. * **Headless/SDK Enhancements:** Headless sessions now correctly track cost/usage totals. * *Draft (Chinese):* * **稳定性与可靠性：** 大量修复了崩溃、挂起及意外退出问题，特别是在 Headless/SDK 模式和插件管理中。 * **工具行为修正：** 修复了 Edit 工具的正则处理和 Write 工具的错误报告。 * **插件生态系统：** 改进了插件安装、重载和市场策略的鲁棒性。 * **Headless/SDK 增强：** Headless 会话现在能正确记录成本和用量统计。 * *Impact Level:* Medium/High. While mostly bug fixes, they affect core tooling (Edit, Write), stability of background/remote sessions, and resource management (leftover staged files). The `AGENTS.md` feature is a new workflow change for some. * *Reasoning:* The sheer volume of fixes (50+) targeting critical pain points like session crashes and silent tool failures makes this significant. * *Draft (Chinese):* **Medium (中)**。尽管大部分是错误修复，但解决了大量导致会话崩溃、工具静默失败及资源泄露的核心痛点，特别是对于重度依赖插件和 Headless 模式的开发者至关重要。 * *Action Items:* * Review `AGENTS.md` as an alternative to `CLAUDE.md`. * Update if using Edit tool with non-ASCII characters or escape sequences. * Clean up `~/.cache/claude/staging` (mentioned as a bug fix, but implies previous versions left junk). * Check proxy/gateway configs if using enterprise setups. * *Draft (Chinese):* * 检查项目中是否适合使用 `AGENTS.md` 代替 `CLAUDE.md` 进行指令配置。 * 如果在代码中使用了 Edit 工具处理非 ASCII 字符，测试修复后的行为。 * 清理 `~/.cache/claude/staging` 目录以移除旧版本可能遗留的缓存文件。 * 如果使用了代理或企业网关，查阅新的环境变量（如 `CLAUDE_GATEWAY_PROXY_IS_EGRESS_BOUNDARY`）以优化配置。 6. **Review and Refine:** * The analysis is concise. * It highlights the "World-class programmer" insight (focusing on stability, resource leaks, and tool accuracy). * The tone is professional. * Chinese is natural and accurate. 7. **Final Output Generation.** (Proceed to generate output based on drafted points).

1. **Analyze the Request**: * **Role**: World-class programmer, developer tools/documentation expert. * **Task**: Analyze documentation changes for a single page (`hooks.md`). * **Format**: Markdown, concise, insightful, specific structure (Summary, Key Themes, Impact Level, Action Items). * **Language**: Chinese (as requested in the system prompt "请用中文回复"). * **Input**: A diff from `hooks.md`. 2. **Analyze the Diff**: * **Location**: `hooks.md` (hooks documentation). * **Change 1 (Top section)**: * Old: Brief sentence about hook output strings being capped at 10,000 chars and saved to a file with a preview. * New: Expanded into a detailed list. * Scope: Each string/field is measured separately. * Over the limit: Saved to file, replaced with path + preview (first 2,000 chars). Explicitly mentions there is *no setting or environment variable* to raise this cap (unlike Bash limits). * Reading the file: Claude Code *doesn't* ask Claude to read the file automatically. Developers must keep essential info within the cap. * **Change 2 (Bottom section - `additionalContext` discussion)**: * Old: Says if value exceeds 10,000 chars, written to file, passes file path with short preview. * New: Refines the preview length to "up to the first 2,000 characters". Explicitly states "Claude can read the file, but Claude Code doesn't ask it to." This aligns with the top section change. 3. **Synthesize the "Why it matters"**: * The core issue is the 10,000-character limit on hook outputs. * The crucial new insight is that when content hits this limit, it's truncated to a file, and Claude is *not* automatically told to read that file. * This implies that if a developer puts something critical (like specific error context or crucial code) at position 10,001 of the output, Claude will likely never see it unless manually prompted (which the system doesn't do). * The distinction about "no setting to raise it" is also important for developers looking for workarounds. 4. **Draft the Response (in Chinese)**: * *Overall Summary*: Updates to the hook output limits documentation to clarify that truncated content is saved to a file but not automatically read by Claude, emphasizing the importance of keeping critical context within the 10,000-character limit. (更清晰翻译：更新了关于 Hook 输出限制的文档，明确指出截断的内容虽然会保存到文件，但 Claude 不会被自动指示去读取该文件，强调关键上下文必须保持在 10,000 字符限制内。) * *Key Themes*: * **Strict Capping Behavior**: The 10k limit is hard-coded and per-field (no env var to change it). * **Truncation Mechanism**: Excess content is saved to a file, and Claude receives a preview (2,000 chars) + file path. * **"Silent" Loss of Data**: Crucially, Claude Code does *not* ask Claude to read the truncated file. Claude won't see the full content unless specifically requested (which the system doesn't do). * **Scope**: Limit applies per string/field, not just total output. * *Impact Level*: **Medium**. * *Reasoning*: This clarifies behavior that could lead to bugs where developers assume Claude has access to the full context just because a file path is passed. It's not a code-breaking change, but it changes how developers should architect their hooks. * *Action Items*: * Review hook output logic to ensure `initialUserMessage`, `systemMessage`, and `additionalContext` prioritize the most important data first. * Do not rely on the "file path" fallback as a way to give Claude access to large context automatically. * Understand that there is no configuration option to increase this limit. * Ensure critical information fits within the first 2,000 characters (the preview) or fully within the 10,000 character limit to be safe. 5. **Refine and Polish (Self-Correction during drafting)**: * Check: Did I mention the 2,000 char preview? Yes, that's new in the diff. * Check: Did I mention the "no setting" part? Yes, important for devs trying to bypass limits. * Check: Is the tone right? Professional and developer-focused. 6. **Final Output Generation**: (Proceed to generate the markdown response based on step 4). * *Summary*: 澄清了 Hook 输出字符限制的具体行为，强调当超过 10,000 字符限制时，内容会被截断保存到文件，且 Claude 不会自动读取该文件。 * *Themes*: 限制不可配置、截断机制（保存文件+预览）、关键数据丢失风险、计算范围。 * *Impact*: Medium (clarifies critical behavior regarding context availability). * *Actions*: 优先级调整、不要依赖文件自动读取、了解硬限制。 (Looks good. Translating thoughts to final Chinese markdown structure.)