tt/ttstd-infinite-canvas
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fix(agent): 云端 Agent - 媒体失败可续跑并补齐快照哈希

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生成任务失败不再把整轮判死，漏传画布快照由服务端补当前内容哈希，没有偏好层时不暴露空的 profile 读取。

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
ddCat
2026-09-17 23:31:54 +08:00
parent e345a1b3b3
commit e5a5f0ccc8
13 changed files with 201 additions and 41 deletions
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51
backend/internal/app/cloud_agent_step_hash.go
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@@ -26,8 +26,23 @@ func cloudAgentCaptureStepSnapshotHash(calls []cloudAgentCall) string {
return ""
}
func cloudAgentRewriteCallSnapshotHash(call cloudAgentCall, hash string) cloudAgentCall {
args := map[string]any{}
if err := json.Unmarshal([]byte(call.Function.Arguments), &args); err != nil {
return call
}
args["snapshotHash"] = hash
raw, err := json.Marshal(args)
if err != nil {
return call
}
call.Function.Arguments = string(raw)
return call
}
// cloudAgentRefreshStepSnapshotHash 把同一轮里后续写操作的 snapshotHash 接到当前画布上。
// 只放宽同一轮内、且哈希仍等于本轮读时基线的调用；跨轮和模型自己换过哈希的调用仍走原校验。
// generate_media 漏传快照时补当前媒体内容哈希，避免写画布后还要再读一轮。
func (s *Service) cloudAgentRefreshStepSnapshotHash(run *model.CloudAgentExecution, state *cloudAgentRuntime, call cloudAgentCall) cloudAgentCall {
if state == nil || state.CallIndex <= 0 || len(state.Calls) == 0 || !cloudAgentWrite(call.Function.Name) {
return call
@@ -35,14 +50,7 @@ func (s *Service) cloudAgentRefreshStepSnapshotHash(run *model.CloudAgentExecuti
var current struct {
SnapshotHash string `json:"snapshotHash"`
}
if err := json.Unmarshal([]byte(call.Function.Arguments), &current); err != nil || current.SnapshotHash == "" {
return call
}
baseline := state.StepSnapshotHash
if baseline == "" {
return call
}
if current.SnapshotHash != baseline {
if err := json.Unmarshal([]byte(call.Function.Arguments), &current); err != nil {
return call
}
canvas, err := s.repo.CanvasProjectForUser(run.UserID, state.Request.CanvasID)
@@ -53,20 +61,27 @@ func (s *Service) cloudAgentRefreshStepSnapshotHash(run *model.CloudAgentExecuti
if err != nil {
return call
}
if current.SnapshotHash == "" {
if call.Function.Name != "generate_media" {
return call
}
latest := cloudAgentMediaContentHash(doc)
if latest == "" {
return call
}
call = cloudAgentRewriteCallSnapshotHash(call, latest)
log.Printf("agent step hash filled: run=%s step=%d index=%d tool=%s", run.ID, state.Step, state.CallIndex, call.Function.Name)
return call
}
baseline := state.StepSnapshotHash
if baseline == "" || current.SnapshotHash != baseline {
return call
}
latest := cloudAgentCanvasHash(doc)
if latest == "" || latest == current.SnapshotHash {
return call
}
args := map[string]any{}
if err := json.Unmarshal([]byte(call.Function.Arguments), &args); err != nil {
return call
}
args["snapshotHash"] = latest
raw, err := json.Marshal(args)
if err != nil {
return call
}
call.Function.Arguments = string(raw)
call = cloudAgentRewriteCallSnapshotHash(call, latest)
log.Printf("agent step hash refreshed: run=%s step=%d index=%d tool=%s", run.ID, state.Step, state.CallIndex, call.Function.Name)
return call
}