Long Runtime sessions could silently stop retaining tool and Subagent activity, truncate Run history details, and reject workspace previews over 256 KB. Run history now persists in Main SQLite without the former fixed record or detail caps, surfaces possible loss from legacy caches, and renders long histories in batches.
Local and remote workspace previews now load UTF-8-safe 256 KiB pages on demand instead of rejecting larger text files. The legacy migration, clear-data path, IPC contracts, tests, and feature documentation are updated with the resulting behavior.
Release note: 长时间 Runtime 运行现在会完整保留工具和 Subagent 活动；运行记录迁移到 SQLite，并提示旧版可能已丢失的内容。超过 256KB 的本地及远程文本文件可通过分页面预览继续加载。
OpenCode status checks could cold-start throwaway servers, unrelated
conversations could block each other, and model, Continue, or remote paths
could replay or duplicate work under failure and backlog conditions. Settings
could also lose edits or overwrite unrelated model fields.
This update makes status checks passive, keeps per-conversation ordering while
allowing concurrency, preserves native long-running work with bounded display
capture and backpressure, narrows retries to known pre-dispatch failures, and
aligns remote Ask permissions without reducing Execute. It also keeps
Embedding updates narrow, improves settings and browser guidance, removes the
unused legacy Main gateway state, and records the validated Desktop 0.12.3 and
Agent 0.11.17 release metadata.
Release note: 改善 OpenCode 切换、多会话长任务、模型重试、远程 Ask/Execute 与设置保存可靠性，并完成 Desktop 0.12.3 / Agent 0.11.17 发布准备。
Model connections can now save bounded JSON request headers and top-level body fields. Direct requests and Continue support both; local OpenCode and DeepSeek Harness use only native header support, while the managed remote OpenCode gateway applies both.
Runtime, protocol, and authentication fields keep precedence. Custom values are ordinary connection settings, not credential storage. This migrates Runtime settings from v20 to v21 and updates the DeepSeek control and managed Runtime ACP capabilities.
Release note: 模型连接详情新增自定义请求头和请求体；直连与 Continue 支持两者，本地 OpenCode 和 DeepSeek Harness 仅应用原生支持的请求头，受管远程 OpenCode 支持两者，界面会明确提示生效范围。
Local embedded OpenCode serialized otherwise independent conversations, and GoodBuddy could stop long Runtime tasks after fixed tool, activity, model-call, or accumulated display-output limits.
Different conversations can now run concurrently while requests in the same conversation stay ordered. Dynamic MCP tools remain isolated to the current request. OpenCode, Continue, managed ACP, and the Agent model gateway no longer stop native execution at GoodBuddy-defined call counts or prompt-wide output totals; display copies truncate and transport queues apply backpressure instead. Prompt-wide quota fields are removed from the current contracts.
Per-call model settings, provider request timeouts, cancellation, and same-conversation ordering remain unchanged.
Release note: 修复本机 OpenCode 不同会话互相等待的问题，并移除 GoodBuddy 对单次 Runtime 工具、活动和模型调用次数的人为上限；长输出现在只截断展示或施加传输背压，不再取消原生任务。
Managed SSH Ask previously required bubblewrap and applied a process-level filesystem sandbox, while Execute launched directly. Ask and Execute now share the same direct signed Runtime startup; Ask remains read-only through the Agent's existing tool permission mediation, which only permits native read requests and rejects other tool kinds.
Release note: 远程 Ask 与 Execute 现在都可直接启动签名 Runtime，无需 Host 安装 bubblewrap；Ask 仍在工具权限层仅允许读取操作。
Remote Hosts without the Ask-only bubblewrap tool could report matching Agent and Runtime versions but fail project creation because the Agent hid the Runtime ACP capability entirely. The Agent now advertises a verified Runtime independently of bubblewrap, so Execute can start directly while Ask keeps its existing read-only bubblewrap boundary.
Release note: 修复远程 Host 缺少 bubblewrap 时 Execute 项目无法创建的问题；更新到 Agent 0.11.16 后，Execute 不再受 Ask 专用系统工具影响。
The published Agent 0.11.14 predates the registered-Runtime activation change included in the Desktop candidate. Bump the Agent lock to 0.11.15 and the unpublished Desktop recovery to 0.12.2 so the compound package minimum Desktop version, bilingual notes, and feature documentation describe one coordinated release.
Keep v0.12.0 and v0.12.1 immutable and unpublished, and document that Agent tags also require the exact main candidate workflow to pass before tagging.
Release note: 托管 Linux Host 使用 Agent 0.11.15，已登记 Runtime 激活时不再重复检查完整 OpenCode 二进制。
Full-suite resource contention could make asynchronous renderer assertions and short runtime timing tests fail even though focused runs passed. Limit Vitest to two workers and give the affected UI operations the existing three-second async window.
Also include the approved Linux ARM OpenCode startup note in both feature matrices and release-note languages, and record the successful isolated Linux x64 Host validation of the current-source Runtime activation path.
OpenCode startup on Linux ARM could run a --version probe before launching the configured Runtime and recheck registered remote binary metadata. Execution now trusts the selected path and registered manifest identity after setup-time verification, so switching and cold launch avoid duplicate binary work.
Release note: 优化 Linux ARM 上切换 OpenCode 的启动速度；已安装或已登记的 Runtime 在执行时不再重复启动或检查二进制。
Skills and MCP previously occupied separate top-level settings categories. They now share one Capabilities and tools category with accessible horizontal tabs, while the unimplemented tool environment remains hidden until its settings are usable.
Prevent nested PageTabs wrappers from collapsing to zero height in scrollable Flex layouts, add a CSS regression guard, and document the shared rule plus the planned local Node.js and Python environment.
Release note: 设置中心将 Skills 和 MCP 合并到“能力与工具”，并修复水平页签可能被压缩而不可见的问题；尚未实现的工具执行环境暂不显示。
Define repository and feature-scoped documentation rules for PRDs, User Stories, logic, UI, technical design, and progress evidence.
Move feature-owned documents under docs/features, add one entry point per feature, remove the redundant docs index, and update all affected cross-references. Expand the local tool environment design with explicit product, story, logic, UI, technical, and progress documents.
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