DeepSeek Harness v0.1.2-rc.1：移除SQLite后端，Session.

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作为 0.1.2 系列的首个候选版本，本版本汇总了自 v0.1.1-rc.2 以来的主要用户和开发者相关变更。

新增功能

• 会话流默认在每个已完成回答前折叠过程内容，并默认折叠的「System prompt」 @07akioni, @lsdsjy
• 会话流正文宽度可自适应或拖拽调整 @yixiangihsiang
• 回答末尾显示 token 用量和耗时，可展开查看精确用量与详细统计 @hypatiamay, @ZiyaZhang, @Yifffan
• 会话视图提供覆盖完整历史的回合导航，可预览并跳转尚未载入的轮次 @LegGasai
• 统一界面次级文字层级，会话流支持字号调节，Markdown 表格随正文字号缩放 @yixiangihsiang
• 插件支持在模型设置页添加提供方登录配置 @LegGasai
• 界面支持第三方语言，并统一权限分类和标签的本地化表达 @tianyicui, @LegGasai, @imccyu, @ZiyaZhang
• 子代理模型选择支持 Agent 在授权范围内自主选择，也支持调用方指定提供方、模型、推理力度和最大输出长度，以及为 Claude Code、Codex 配置模型 @Dudu-0223, @pku-xht
• Python SDK runtime 新增 Windows x64 发行包 @tianyicui
• ACP 补齐标准会话控制、模型设置、MCP、权限和取消能力 @tianyicui, @pku-xht
• DeepSeek 官方适配器默认随请求提供已启用插件的包名和版本，可在配置中关闭 @tianyicui
• DeepSeek 官方适配器新增可选的 Session 日志增量上传，默认关闭 @tianyicui
• 新增实验性 Inspector 工具 @imccyu
• 新增实验性 Web Preview @imccyu
• 界面显示连接状态，容忍短暂服务端卡顿，并支持连接中断后的自动重试或立即重连 @imccyu
• 会话标题区域支持在不同视口宽度下查看活动的定时计划 @pku-xht
• 父 Agent 与可持续子 Agent 可通过 send_message 双向传递后续消息，取代单向 report 工具 @Dudu-0223

体验优化

• 减少页面启动和会话初始化中的代码加载、数据传输与解析开销 @lsdsjy, @imccyu, @Kingwl, @kermanx
• 改善会话记录占用的磁盘空间 @Magolor
• 优化 / 与 @ 菜单的图标、目录加载和文件搜索，支持通过鼠标在目录层级间导航 @Yifffan, @LegGasai
• 会话运行中存在草稿时主按钮切换为「发送」，消息排队发送 @lsdsjy
• 输入框中的文件和会话引用在相邻文字编辑后仍保持有效 @LegGasai
• 切换会话后仍保留未提交的提问卡片草稿 @LegGasai
• 会话流中的流式回复代码块在生成期间持续显示语法高亮 @07akioni
• 会话流中的提问历史显示为可读的问答卡片，并标明取消或中断后的未提交状态 @LegGasai
• 图片发送后立即显示，压缩和上传在后台继续 @CreatixChu
• 上下文压缩会计入图片占用 @CreatixChu
• 轨迹视图支持展示用户、助手和工具结果中的图片 @CreatixChu
• 在本地文件系统模式下，模型可定位上传图片，并通过 read_image 读取没有扩展名的附件路径 @CreatixChu
• 调整图片压缩策略，压缩更快、上传体积更小，并改善超长截图的清晰度 @CreatixChu
• 会话日志截断尾部自动修复时输出警告并注明受影响会话 @turtle1999
• 插件列表按会话插件和全局插件分组，可切换 Agent Preset 查看组合、搜索其他预设 @LegGasai
• 改善会话与输入界面的菜单显示、滚动条、工具文件链接与 diff 统计 @Yifffan
• 减少 macOS 和 Linux 加载会话时不必要的文件系统检查 @LegGasai
• 提升长会话和密集实时消息的处理效率，降低内存占用以及流式回复、代码高亮、布局和导航预览的渲染开销 @Dudu-0223, @imccyu, @07akioni
• web_search 失败时报告实际端点和错误明细 @CreatixChu
• 调整首页标志的动画效果 @Yifffan
• 自定义模型发现复用 Profile 请求头；模型目录支持搜索和筛选 @LegGasai

问题修复

• 修复 macOS 和 Linux 上持久 PowerShell 启动过早、输出不完整的问题 @tianyicui
• 修复 Linux 持久 Bash 在管道内部读取时提前返回空输出的问题 @LegGasai
• 修复 Bash 命令派生大量子进程时 macOS 宿主卡顿的问题 @LegGasai
• 修复 Windows 目录选择器截断含「开」等特定编码字符路径的问题 @tianyicui
• 修复会话视图中持久 Bash 与 PowerShell 结果无法展开的问题 @LegGasai
• 修复 Profile 配置的 Agent Preset 目录在启动时丢失的问题 @LegGasai
• 无法加载的 Agent Preset 会提前标记，并在切换失败时说明原因 @LegGasai
• Minimal preset 不再显示不适用的 /goal 命令 @Magolor
• 文件编辑工具接受当前操作未使用字段的 null 占位值 @lsdsjy
• PTC Mode 的 SDK 功能只能通过 run_code 调用，不再被模型当作普通工具直接调用 @CreatixChu
• 网关定期发送 WebSocket 心跳，避免空闲连接中断 @lsdsjy
• 修复新建空会话挤掉 Workspace 折叠列表已有会话的问题 @lsdsjy
• 修复系统提示词 workflow 分区顺序 @LegGasai
• 优化 NPM 包中的 peer dependency 依赖以改善包管理解析成本 @imccyu
• 修复 Node.js 24.0–24.11.1 上启动可能失败且 HMR 失效的问题 @imccyu
• 关闭设置窗口后，键盘焦点会返回设置入口 @LegGasai
• 会话运行中追加或排队发送的图片可正确回显并可靠投递；持续子代理的后续消息也支持图片 @CreatixChu
• 命令菜单打开时，Tab 可补全当前高亮的斜杠命令 @mektpoy

其他变更

• 更新 安全说明：DeepSeek Harness 尚未接受安全审计，沙箱、审批与权限控制不能保证隔离 @turtle1999
• 调整模型提示词顺序，使 Shell 使用指南稳定出现在其他工具指南之前 @LegGasai
• Remote 网关统一远程调用 API 与异常分发，旧版 APIProxy 已迁移并移除 @imccyu
• 会话视图工程大幅拆分，请面向诉求分层导入合适模块 @imccyu
• 网络访问 Web 界面时启用链接中的一次性 token 认证鉴权 @tianyicui
• 应用统一通过 dsh Profile 启动，包括 Python SDK、ACP 模式等 @tianyicui
• pi-ai 模型支持更新，并增加 vLLM 思考预算等配置 @tianyicui
• Headless 运行期间向 stderr 流式输出进度，stdout 只输出最终结果 @lsdsjy
• Code Mode 统一更名为 PTC mode，现有会话记录仍可读取 @tianyicui
• 默认启用公网 WebFetch（内置 SSRF 防护，公网请求不再逐次审批） @Dudu-0223
• 移除可选的 SQLite Session 持久化后端；已有内容不会删除，请使用旧版本导出 @tianyicui
• Python SDK、Headless、ACP 与自定义 Profile 默认提供 web_fetch @koalazf99
• Web PTC Mode 默认不再向模型提供通用 workflow 工具 @koalazf99
• Session.events 被按需读取 API seq、eventAt() 和 snapshotEvents() 取代 @kermanx
• SessionSeq 与 SessionLogOffset 使用强类型区分，本改造保持向前兼容 @tianyicui, @imccyu

This first release candidate for v0.1.2 summarizes the major user- and developer-facing changes since v0.1.1-rc.2.

New Features

• By default, fold process details and the System prompt before each completed answer in the conversation stream by @07akioni, @lsdsjy
• Make conversation-stream content width adaptive and drag-resizable by @yixiangihsiang
• Show token usage and elapsed time at the end of each answer, with expandable exact usage and detailed statistics by @hypatiamay, @ZiyaZhang, @Yifffan
• Provide full-history turn navigation in the conversation view, including previews and jumps to unloaded turns by @LegGasai
• Align secondary text styling, add conversation font sizing, and scale Markdown tables with body text by @yixiangihsiang
• Let plugins add provider sign-in controls to Models settings by @LegGasai
• Support third-party interface languages and consistent localized permission categories and labels by @tianyicui, @LegGasai, @imccyu, @ZiyaZhang
• Support subagent model selection through agent-authorized choices, caller-specified provider, model, reasoning effort, and maximum output length, and configured models for Claude Code and Codex by @Dudu-0223, @pku-xht
• Publish the Python SDK runtime for Windows x64 by @tianyicui
• Complete ACP support for standard session controls, model settings, MCP, permissions, and cancellation by @tianyicui, @pku-xht
• Include enabled plugin package names and versions in official DeepSeek requests; deployments can turn this off by @tianyicui
• Add opt-in incremental Session-log uploads to official DeepSeek requests by @tianyicui
• Add an experimental Inspector tool by @imccyu
• Add an experimental Web Preview by @imccyu
• Show connection status, tolerate temporary host stalls, and support automatic retries or immediate reconnection after a disconnect by @imccyu
• Show active schedules in the conversation header across viewport sizes by @pku-xht
• Let parent Agents and continuable child Agents exchange follow-up messages through send_message, replacing the one-way report tool by @Dudu-0223

Improvements

• Reduce code loading, data transfer, and parsing during page startup and conversation initialization by @lsdsjy, @imccyu, @Kingwl, @kermanx
• Reduce the disk space used by conversation records by @Magolor
• Improve icons, directory loading, and file search in the / and @ menus, with pointer-based directory navigation by @Yifffan, @LegGasai
• Switch the primary action to Send and queue the message when a draft is entered during a running turn by @lsdsjy
• Keep file and conversation references valid when adjacent composer text is edited by @LegGasai
• Preserve unfinished question-card drafts when switching conversations by @LegGasai
• Keep code blocks syntax-highlighted while responses stream in the conversation view by @07akioni
• Render question history as readable question-and-answer cards with clear cancelled and interrupted states by @LegGasai
• Show images immediately while compression and upload continue in the background by @CreatixChu
• Count image usage during context compaction by @CreatixChu
• Show images from users, assistants, and tool results in Trajectory by @CreatixChu
• In local-filesystem mode, let the model locate uploaded images and read extensionless attachment paths through read_image by @CreatixChu
• Improve image compression speed, reduce upload size, and preserve more detail in very tall or wide images by @CreatixChu
• Warn when automatically repairing a truncated conversation-log tail and identify the affected conversation by @turtle1999
• Group plugins by conversation and global scope, with Agent Preset switching and cross-preset search by @LegGasai
• Improve menus, scrolling, tool file links, and diff statistics in the conversation and composer UI by @Yifffan
• Reduce unnecessary filesystem checks when loading conversations on macOS and Linux by @LegGasai
• Improve processing efficiency for long conversations and dense live messages while reducing memory use and rendering overhead from streaming responses, syntax highlighting, layout, and navigation previews by @Dudu-0223, @imccyu, @07akioni
• Report the effective endpoint and error details when web_search fails by @CreatixChu
• Refine the home-page logo animation by @Yifffan