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5.3 KiB
@deepseek-ai/dsh-goal
English | 中文
事件溯源的同会话目标状态。该服务在 agent(智能体)的现有会话中保留一个当前完成目标,同时将继续执行的权限作为进程本地续行启用状态。goal 领域 Agent Note 负责设计理由;goal 类型目录记录具体的数据形状。
配置
- id: goal
name: '@deepseek-ai/dsh-goal'
config:
defaultMaxGoalRounds: 256
defaultMaxGoalRounds 必须是正的安全整数。create() 会在提交目标前于内部物化这项部署默认值;请求级取值可以覆盖它。
服务契约
ctx.goals 只接受以对应 id 注册的完全相同的活跃 Agent 实例。get() 返回与内部状态脱离的 GoalView;变更通过 GoalRef { id, revision } 比较并设置屏障,并拒绝陈旧引用。服务通过生成的服务目录公开 create、edit、pause、resume、complete、block 和 clear 动词。创建默认值在内部解析。disarm() 是仅供生命周期使用的例外:它移除进程本地续行权限,不写入新 revision,也不发出变更。
最多只有一个当前目标。创建操作会生成 revision 为 1、phase 为 active 的目标并启用续行。未完成的目标必须编辑、转换或清除;已完成目标可以由拥有全局未使用过的 id 的目标替换。编辑会保留 phase、blocker reason 与 activation。暂停、完成、阻塞和清除都会停用续行。阻塞会记录策略自有的 lower-kebab-case 代码和规范化的自由文本说明;提供方限制、配置预算、执行错误与请求人工输入都使用这一种持久 phase,不会扩增生命周期状态。只有配置的 Round 上限仍有剩余容量时,resume 才接受已停止 phase 或 phase 为 active 但已停用续行的目标;它会清除原 blocker reason。phase 为 active 且已启用续行的目标会拒绝冗余操作。
每次变更都会追加持久的 goal/change 事件,其中携带变更后的完整快照;clear 使用带 revision 的 tombstone。因此,goal 状态不依赖 inbox 放置、领取、准入或丢弃。会话日志是唯一的持久权威。
严格回放只从 goal/change 派生生命周期变更,并拒绝形状错误、不连续 revision、非法生命周期转换、每目标时间戳非单调,以及不连续的已准入 Goal Round。只有来源为 goal 且已准入的 user/message 事件会推进正数 Round。挂钟时间倒退时,变更时间戳会限制在不早于上一次目标更新的值。增量回放会把游标保留在第一个损坏事件处;goal/changed 会在持久事件提交后触发,监听器失败会被隔离处理。
续行启用状态绝不持久化。新缓存与每次触发 agent/session-start 时都会停用续行,即使回放找到了持久 phase 为 active 的目标。续行驱动器在卸载前或持久性不确定后也会调用 disarm()。因此,会话恢复、fork 与驱动器替换会保留目标、phase、revision 和已准入 Round 数量,却不会启动工作;之后必须通过显式 resume 变更重新启用续行。
单独发布的 ./invariant 配套模块会为每个已挂接会话维护独立折叠。它会在候选事件进入持久日志前拒绝格式错误的 goal 变更、不连续 revision、非法生命周期转换、时间戳回退,以及不连续的已准入 Round。
扩展点
策略插件调用服务动词,并响应限定范围的 goal/changed 事件。续行消费方将 Round 准入为 user/message 事件,并携带 GoalMessageSource;普通的人类轮次绝不会增加 roundsStarted。消费方使用 Agent 接口和事件,不导入 dsh-agent-loop。
模型体验
目标状态变更
模型看到的内容
Goal 变更不会注入模型上下文。get_goal 等工具返回当前状态;继续执行消费方可以在调度模型工作时渲染目标描述与 Round 状态。未来如果需要始终可见的 goal 上下文,应由独立上下文插件实现,而不是放在持久化路径中。
Token 影响
Goal 变更事件本身不增加模型 token。工具结果与已调度的继续执行提示词分别计入其自身暴露的状态。
KV Cache 影响
在其他组件把 goal 状态暴露为模型可见输入之前,不会影响 KV Cache。
已知限制与暂缓事项
- 只负责状态,不负责任务调度:此包不决定已启用续行的目标何时继续,不重试异常失败,也不取消活跃轮次;这些策略属于 agent seam 消费方。
- 只有 Round 数量预算:
maxGoalRounds不计量 token、货币、挂钟时间或提供方配额。 - 没有独立评估器:记录完成或阻塞的调用方拥有最终决定权;由评估器支持的认证暂缓到独立策略层。
- 只有一个当前目标:系统有意不支持并行目标或独立目标数据库;替换或清除后,历史仍可在会话日志中读取。
- 信任进程内生产方:能直接访问
Session的插件可以追加伪造的goal/change数据。严格回放会检测格式错误或不一致的记录,并使 goal 访问从该记录起失败,直到日志修复;这是完整性检测,不是插件隔离。