Files
Agent-System-Backend/internal/intentgate/gate.go
T
weichen 30ad92730d Integrate the agent-intent gate
Details (original message):
Integrate the agent-intent gate: plugin intent overlays rebuild the registry (fail-closed, keeps previous snapshot), HITL free-input pivots on matched foreign intents; unit and e2e tests; pin logging-system and error-code-system submodules.
2026-09-29 18:11:47 +00:00

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// Package intentgate 接入 agent-intent(生态仓):插件意图 overlay → 注册表 →
// HITL 自由输入路由的确定性识别(设计 4.5 三分支之「命中其他意图→转轨」)。
// 未配置/未装载意图 = 行为回退(T0:直接按澄清回填),识别失败不阻断。
package intentgate
import (
"context"
"encoding/json"
"fmt"
"sync"
agentintent "agent-intent/intent"
)
type Gate struct {
mu sync.RWMutex
reg *agentintent.Registry
rec *agentintent.FunnelRecognizer
specs int
}
func New() *Gate {
return &Gate{rec: agentintent.NewRecognizer(agentintent.Options{}, nil, nil)}
}
// Rebuild 用插件意图 overlay 重建注册表;失败保留上一快照(fail-closed)并返回错误。
func (g *Gate) Rebuild(ctx context.Context, overlay []json.RawMessage) error {
if len(overlay) == 0 {
g.mu.Lock()
g.reg, g.specs = nil, 0
g.mu.Unlock()
return nil
}
specs := make([]agentintent.IntentSpec, 0, len(overlay))
for i, raw := range overlay {
var s agentintent.IntentSpec
if err := json.Unmarshal(raw, &s); err != nil {
return fmt.Errorf("intentgate: spec[%d]: %w", i, err)
}
specs = append(specs, s)
}
b := agentintent.NewRegistryBuilder(agentintent.Options{TopN: 3})
if err := b.Register(specs...); err != nil {
return fmt.Errorf("intentgate: register: %w", err)
}
reg, err := b.Build()
if err != nil {
return fmt.Errorf("intentgate: build: %w", err)
}
g.mu.Lock()
g.reg, g.specs = reg, len(specs)
g.mu.Unlock()
return nil
}
// Match 识别自由输入;返回 (branch, topID)。
// branch:matched | ambiguous | fallback | ""(未配置/系统级错误 → 回退通道)。
func (g *Gate) Match(ctx context.Context, input string) (string, string) {
g.mu.RLock()
reg, rec := g.reg, g.rec
g.mu.RUnlock()
if reg == nil {
return "", ""
}
res, err := rec.Recognize(ctx, input, reg.Snapshot())
if err != nil {
return "", ""
}
topID := ""
if res.Top != nil {
topID = res.Top.ID
}
switch res.Branch {
case agentintent.BranchMatched:
return "matched", topID
case agentintent.BranchAmbiguous:
return "ambiguous", topID
default:
return "fallback", topID
}
}
// Enabled 报告是否装载了意图(诊断/设置展示用)。
func (g *Gate) Enabled() bool {
g.mu.RLock()
defer g.mu.RUnlock()
return g.reg != nil && g.specs > 0
}
// SpecCount 返回已装载意图数。
func (g *Gate) SpecCount() int {
g.mu.RLock()
defer g.mu.RUnlock()
return g.specs
}