Files
Cyrene_v2/internal/runtime/loop/flow_branch.go
T
AskaEth de1fa83b79 feat(orchestration,loop,flow): 接线子代理编排 — 派发入口 + 分支归父会话 + 节点日志(含脱敏)
修的是「文档说 ✅、生产不可达」:此前 Scheduler.Spawn 只有测试调用方、无 bus 入口、无派发工具;Span.Record 无生产调用方 → 泳道画不出、节点日志恒空。
- 入口:subagent_spawn 工具(internal/runtime/orchestration/spawntool.go,同包便于用真 Scheduler/loop/Tracer/Flow 做集成测试;注册在 cmd/cyrene/subagent_tool.go 照 terminal_tool 范式)。默认 owner-only,不设 AllowInGroup/AllowInStranger;安全仍由 restrictSchemas + applyToolSecurityGate 双层保证,未绕代审
- 父会话归属:AgentSpec.ParentSession(请求语义)→ Scheduler 转运行期 ctx 标记 loop.WithFlowBranch → 分支 span 以父 session 发布;**allow 谓词一行未改**;单图语义靠「分支 Run 不调 StartRound/EndRound」+ FlowPublisher 不新建图;未归属 spawn 一张图都不发(有测试锁)
- 前台最多等 2s(对齐 task.autoBackgroundThreshold)→ 合并结果作工具结果;转后台则广播 bus subagent.result(design/05 §9 回填 hook);新增 Scheduler.Wait(ids) 按批等待(Join 会串并发批次,故不重用)
- 子代理跑在 WithoutCancel(ctx):保留 span 归属、不被工具超时/回合结束顺手杀掉;生命周期由 PerAgentTimeout + CancelAll 约束;内部 WithMutedBroadcast 静音(不进前台 stream)
- 节点日志:loop/spanlog.go 新增 llm.done / tool.done / subagent.done;工具参数**只记键名不记值**;仅步骤真正结束才追加(跳过/被拒路径不发,不伪造)
- 脱敏(红线):新增 trace/redact.go(形状规则 sk-/Bearer/JWT/key:value + 键名规则 api_key/token/authorization/password…,递归嵌套、不改调用方事件),graph.go 发布前必经;**顺带修掉一个既有泄漏**:result_summary prop 原先未脱敏(工具结果里的密钥会进图),由图级变异测试抓出
- 测试:新增 22 个(工具级 / 图级 / 日志级),含 4 次变异验证(去掉 WithFlowBranch、去掉 record*、还原未脱敏、去掉静音 各自 FAIL);-race 过 orchestration+trace+loop
- 已知限制:真实模型端到端未验(无凭据/不起服务);工具白名单是 design gap 未做;subagent.result 暂无消费者(design/15 未实现);后台子代理跨轮次边界迟到 span 会丢泳道根;PerAgentTimeout=10min 待确认
2026-10-03 19:39:38 +08:00

67 lines
2.6 KiB
Go

package loop
import "context"
// flowBranchKey is the context key marking a Run as a branch of another
// session's flow graph. It is set by the orchestration layer (through
// WithFlowBranch) before it drives a sub-agent's Run.
type flowBranchKey struct{}
// WithFlowBranch returns ctx marking the current Run as a branch: its spans fold
// into parentSession's live flow graph and the Run neither starts nor ends a
// round of its own — the owning session's round does. It is how the orchestration
// layer attributes a sub-agent's work to the session that spawned it, so parallel
// sub-agents render as swimlanes of one graph instead of replacing the frontend's
// single flowGraph with a graph of their own (design/19 §2).
//
// An empty parentSession still marks the Run as a branch: it owns no round and
// publishes nothing. That is the state of a background sub-agent nobody attributed
// to a session, and it must not silently become a graph of its own. A nil ctx is
// returned unchanged.
func WithFlowBranch(ctx context.Context, parentSession string) context.Context {
if ctx == nil {
return ctx
}
return context.WithValue(ctx, flowBranchKey{}, parentSession)
}
// flowBranch reports the parent session recorded by WithFlowBranch and whether the
// Run is a branch at all. A non-branch Run owns its own round and publishes under
// its own session id.
func flowBranch(ctx context.Context) (string, bool) {
if ctx == nil {
return "", false
}
v := ctx.Value(flowBranchKey{})
if v == nil {
return "", false
}
s, _ := v.(string)
return s, true
}
// flowOwner returns the session whose flow graph should receive this Run's spans:
// the branch parent when the Run is a sub-agent branch (empty when the branch is
// unattributed, which suppresses publication), otherwise the Run's own sessionID.
func flowOwner(ctx context.Context, sessionID string) string {
if parent, isBranch := flowBranch(ctx); isBranch {
return parent
}
return sessionID
}
// FlowOwnerFromContext returns the session whose flow graph owns work started
// from ctx: the branch parent when ctx runs inside a sub-agent branch, otherwise
// the session id the enclosing Run was driven with (empty when neither is set).
//
// A tool that dispatches background work — the sub-agent spawn tool — passes this
// as the parent session, so a sub-agent spawned from inside another sub-agent
// stays attributed to the same top-level graph instead of to an id that owns no
// graph.
func FlowOwnerFromContext(ctx context.Context) string {
if parent, isBranch := flowBranch(ctx); isBranch {
return parent
}
return SessionFromContext(ctx)
}