mirror of
https://gitcode.com/JianFeeeee/HomeAgent.git
synced 2026-09-21 09:28:14 +00:00
147d0baaf9
- agent: 工具轮请求尾部补 user 占位(zen 网关强制),tool 消息正确配对 - agent: 工具提醒/中断以 system 角色注入并带 [中断消息] 前缀,不进用户履历;系统提示词说明中断消息格式 - agentcli: 基于 ConPTY 的交互式终端(ptywin fork),terminal_create/read/write/resize/close/watch - webui: server 输出通道适配器(保留 reasoning_content/disable_thinking) - GUI: 沉浸式标题栏、icon 圆角重制、mascot 等打磨
392 lines
12 KiB
Go
392 lines
12 KiB
Go
package core
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import (
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"context"
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"errors"
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"fmt"
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"log"
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"strings"
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agentAPI "gitcode.com/JianFeeeee/HomeAgent/internal/agent/api"
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"gitcode.com/JianFeeeee/HomeAgent/internal/events"
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sdk "gitcode.com/JianFeeeee/HomeAgent/internal/sdk"
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)
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func (a *Agent) process(input string, stageCtx *sdk.StageContext) (response string, toolsUsed []string, toolResults []ToolResultItem, err error) {
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a.mu.Lock()
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defer a.mu.Unlock()
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if a.provider == nil {
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return "", nil, nil, fmt.Errorf("agent: no LLM provider configured")
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}
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budget := ComputeTokenBudget(a.provider, a.systemPrompt)
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memContext := a.buildMemoryContext(input, budget.MemoryTokens)
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sysPrompt := a.buildSystemPrompt(memContext, input)
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tools := a.buildToolDefs()
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msgs := a.buildMessages(sysPrompt, input, budget.ContextTokens)
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// 工具提醒（interrupt）：以 system 角色注入，不让模型误认为用户发言
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if a.interruptInput {
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last := msgs[len(msgs)-1]
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last.Role = "system"
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last.Content = "[中断消息] " + last.Content
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msgs[len(msgs)-1] = last
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a.interruptInput = false
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}
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if blocks, ok := stageCtx.Extra["media_blocks"].([]agentAPI.ContentBlock); ok && len(blocks) > 0 {
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if len(msgs) > 0 {
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msgs[len(msgs)-1].Blocks = blocks
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}
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}
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log.Printf("[agent] tool call loop start, max_ctx=%d target=%d fixed=%d mem=%d ctx=%d %d tools, %d events, personality=%t, docs=%d",
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budget.MaxContext, budget.TargetUsage, budget.FixedTokens, budget.MemoryTokens, budget.ContextTokens,
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len(tools), a.context.Len(),
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a.personality != nil && a.personality.Content != "",
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a.docStoreSize())
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if a.runStage(sdk.StagePreAction, stageCtx) {
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return *stageCtx.Response, toolsUsed, toolResults, nil
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}
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if len(stageCtx.ContextMsgs) > 0 {
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for _, m := range stageCtx.ContextMsgs {
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role, _ := m["role"].(string)
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content, _ := m["content"].(string)
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if role != "" {
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msgs = append(msgs, agentAPI.Message{Role: role, Content: content})
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}
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}
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}
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for turn := 0; ; turn++ {
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for _, interrupt := range a.drainInterrupts() {
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msgs = append(msgs, agentAPI.Message{
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Role: "system",
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Content: "[中断消息] " + interrupt,
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})
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}
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// zen 兼容网关要求请求的最后一条消息必须是 user(thinking 续写模式校验),
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// 工具轮产出的 tool/assistant 消息作结尾会被 400 拒绝,故补一条 user 占位。
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if last := msgs[len(msgs)-1]; last.Role != "user" {
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msgs = append(msgs, agentAPI.Message{
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Role: "user",
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Content: "请根据以上工具结果继续。",
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})
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}
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req := &agentAPI.CompletionRequest{
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Messages: msgs,
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MaxTokens: 4096,
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Tools: tools,
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ToolChoice: "auto",
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DisableThinking: !a.thinkingEnabled,
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}
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var providers []agentAPI.Provider
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if a.providerManager != nil {
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// 精确模型名走 byModel 路由；AUTO/空走优先级链
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var allProviders []agentAPI.Provider
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if req.Model != "" && !strings.EqualFold(req.Model, "AUTO") {
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allProviders = a.providerManager.ResolveForModel(req.Model)
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} else {
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allProviders = a.providerManager.OrderedProviders()
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}
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providers = make([]agentAPI.Provider, 0, len(allProviders))
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for _, p := range allProviders {
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if a.providerManager.IsAvailable(p.Name()) {
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providers = append(providers, p)
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}
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}
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}
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if len(providers) == 0 {
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providers = []agentAPI.Provider{a.provider}
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}
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var resp *agentAPI.CompletionResponse
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var llmErr error
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for pi, fbProvider := range providers {
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if pi > 0 {
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log.Printf("[agent] LLM fallback: trying provider %q (fallback #%d/%d)",
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fbProvider.Name(), pi, len(providers)-1)
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}
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fCtx, fCancel := context.WithCancel(a.ctx)
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a.llmMu.Lock()
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a.cancelLLM = fCancel
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a.llmMu.Unlock()
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resp, llmErr = fbProvider.Chat(fCtx, req)
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a.llmMu.Lock()
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a.cancelLLM = nil
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a.llmMu.Unlock()
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fCancel()
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if llmErr == nil {
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a.providerManager.ResetAvailability(fbProvider.Name())
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if fbProvider != a.provider {
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a.provider = fbProvider
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log.Printf("[agent] switched active provider to %q after fallback",
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fbProvider.Name())
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}
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break
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}
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if errors.Is(llmErr, context.Canceled) {
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break
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}
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var pe *agentAPI.ProviderError
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if errors.As(llmErr, &pe) && (pe.StatusCode == 401 || pe.StatusCode == 403) {
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a.providerManager.ReportStatus(fbProvider.Name(), pe.StatusCode)
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log.Printf("[agent] provider %q marked unavailable (HTTP %d)", fbProvider.Name(), pe.StatusCode)
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} else {
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a.providerManager.MarkUnavailable(fbProvider.Name())
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}
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log.Printf("[agent] provider %q failed: %v", fbProvider.Name(), llmErr)
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}
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if llmErr != nil {
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if errors.Is(llmErr, context.Canceled) && a.ctx.Err() == nil {
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if a.currentOutputChannel == "_consolidation_" {
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return "", toolsUsed, toolResults, fmt.Errorf("interrupted by user input")
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}
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continue
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}
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return "", toolsUsed, toolResults, fmt.Errorf("all %d providers failed, last error: %w",
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len(providers), llmErr)
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}
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stageCtx.LLMText = resp.Content
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stageCtx.ReasoningContent = resp.ReasoningContent
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stageCtx.TokenUsage = map[string]int{
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"prompt_tokens": resp.TokenUsage.Prompt,
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"completion_tokens": resp.TokenUsage.Completion,
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"total_tokens": resp.TokenUsage.Total,
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}
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stageCtx.ToolCalls = convertToolCalls(resp.ToolCalls)
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for i := range stageCtx.ToolCalls {
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if stageCtx.ToolCalls[i].Plugin == "" {
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stageCtx.ToolCalls[i].Plugin = a.resolveToolPlugin(stageCtx.ToolCalls[i].Name)
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}
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}
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if a.runStage(sdk.StagePostAction, stageCtx) {
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return *stageCtx.Response, toolsUsed, toolResults, nil
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}
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resp.Content = stageCtx.LLMText
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resp.ToolCalls = convertBackToolCalls(stageCtx.ToolCalls)
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chainPayload := map[string]interface{}{
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"content": resp.Content,
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"reasoning": resp.ReasoningContent,
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"tool_calls": resp.ToolCalls,
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"phase": "intermediate",
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"turn": turn,
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}
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if resp.TokenUsage.Total > 0 {
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chainPayload["usage"] = map[string]int{
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"prompt": resp.TokenUsage.Prompt,
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"completion": resp.TokenUsage.Completion,
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"total": resp.TokenUsage.Total,
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}
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}
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a.publishEvent(events.EventAgentLLMChain, chainPayload)
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if resp.ReasoningContent != "" {
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a.publishEvent(events.EventReasoning, map[string]interface{}{
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"content": resp.ReasoningContent,
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"channel": a.currentOutputChannel,
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})
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}
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if len(resp.ToolCalls) == 0 {
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return resp.Content, toolsUsed, toolResults, nil
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}
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contentOnce := true
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for _, tc := range resp.ToolCalls {
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if len(a.interceptCh) > 0 {
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for _, interrupt := range a.drainInterrupts() {
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msgs = append(msgs, agentAPI.Message{Role: "system", Content: "[中断消息] " + interrupt})
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}
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a.publishEvent(events.EventToolCall, map[string]interface{}{
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"tool": tc.Name,
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"plugin": a.resolveToolPlugin(tc.Name),
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"args": tc.Arguments,
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"status": "interrupted",
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"reason": "user interrupt before execution",
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"channel": a.currentOutputChannel,
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})
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break
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}
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toolsUsed = append(toolsUsed, tc.Name)
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pluginName := a.resolveToolPlugin(tc.Name)
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log.Printf("[agent] executing tool: %s (plugin=%s, id=%s)", tc.Name, pluginName, tc.ID)
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sdkTC := sdk.ToolCall{ID: tc.ID, Name: tc.Name, Plugin: pluginName, Arguments: tc.Arguments}
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stageCtx.ToolCalls = []sdk.ToolCall{sdkTC}
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stageCtx.ToolResults = nil
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if a.runStage(sdk.StageBeforeToolcall, stageCtx) {
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result := fmt.Sprintf("工具 %s 已被插件拒绝", tc.Name)
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msgs = append(msgs, agentAPI.Message{Role: "assistant", ToolCalls: []agentAPI.ToolCall{tc}})
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msgs = append(msgs, agentAPI.Message{Role: "tool", ToolCallID: tc.ID, Content: result})
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a.publishEvent(events.EventToolCall, map[string]interface{}{
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"tool": tc.Name,
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"plugin": pluginName,
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"args": tc.Arguments,
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"result": result,
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"status": "denied",
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"channel": a.currentOutputChannel,
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})
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continue
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}
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tc.Arguments = stageCtx.ToolCalls[0].Arguments
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if pluginName != "" && !a.pluginHealth.isHealthy(pluginName) {
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result := fmt.Sprintf("插件 %s 处于崩溃状态，已跳过执行，等待自动恢复重载", pluginName)
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log.Printf("[agent] skip tool %s: plugin %s unhealthy", tc.Name, pluginName)
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msgs = append(msgs, agentAPI.Message{Role: "assistant", ToolCalls: []agentAPI.ToolCall{tc}})
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msgs = append(msgs, agentAPI.Message{Role: "tool", ToolCallID: tc.ID, Content: result})
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continue
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}
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result := a.executeToolCall(tc)
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toolResults = append(toolResults, ToolResultItem{Name: tc.Name, Output: result})
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log.Printf("[agent] tool %s result: %s", tc.Name, truncateStr(result, 100))
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stageCtx.ToolResults = []sdk.ToolResult{{CallID: tc.ID, Name: tc.Name, Plugin: pluginName, Success: true, Result: result}}
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a.runStage(sdk.StageAfterToolcall, stageCtx)
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if len(stageCtx.ToolResults) > 0 {
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if r, ok := stageCtx.ToolResults[0].Result.(string); ok {
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result = r
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}
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}
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msgContent := ""
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if contentOnce {
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msgContent = resp.Content
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contentOnce = false
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}
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msgs = append(msgs, agentAPI.Message{Role: "assistant", Content: msgContent, ReasoningContent: resp.ReasoningContent, ToolCalls: []agentAPI.ToolCall{tc}})
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msgs = append(msgs, agentAPI.Message{Role: "tool", ToolCallID: tc.ID, Content: result})
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a.publishEvent(events.EventToolCall, map[string]interface{}{
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"tool": tc.Name,
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"plugin": pluginName,
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"args": tc.Arguments,
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"result": result,
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"status": "ok",
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"channel": a.currentOutputChannel,
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})
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if len(a.interceptCh) > 0 {
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for _, interrupt := range a.drainInterrupts() {
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msgs = append(msgs, agentAPI.Message{Role: "system", Content: "[中断消息] " + interrupt})
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}
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break
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}
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}
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}
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}
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func convertToolCalls(tcs []agentAPI.ToolCall) []sdk.ToolCall {
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if tcs == nil {
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return nil
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}
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result := make([]sdk.ToolCall, len(tcs))
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for i, tc := range tcs {
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result[i] = sdk.ToolCall{ID: tc.ID, Name: tc.Name, Arguments: tc.Arguments}
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}
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return result
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}
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func convertBackToolCalls(tcs []sdk.ToolCall) []agentAPI.ToolCall {
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if tcs == nil {
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return nil
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}
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result := make([]agentAPI.ToolCall, len(tcs))
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for i, tc := range tcs {
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result[i] = agentAPI.ToolCall{ID: tc.ID, Name: tc.Name, Arguments: tc.Arguments}
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}
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return result
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}
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func (a *Agent) docStoreSize() int {
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if a.docStore == nil {
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return 0
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}
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s := a.docStore.Stats()
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if n, ok := s["doc_count"]; ok {
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if ni, ok := n.(int); ok {
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return ni
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}
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}
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return 0
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}
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func (a *Agent) formatMergedTimeline(maxTokens int) string {
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a.context.mu.Lock()
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events := make([]*ContextEvent, len(a.context.events))
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copy(events, a.context.events)
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a.context.mu.Unlock()
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if len(events) == 0 {
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return ""
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}
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// 第一轮：从最新到最旧，计算在预算内能放多少条
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headerTokens := EstimateTokens("【对话时序】\n")
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remaining := maxTokens - headerTokens
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include := 0
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for i := len(events) - 1; i >= 0; i-- {
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e := events[i]
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est := len(e.Source) + len(e.Input) + 40
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if e.Response != "" {
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est += 120
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}
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estTokens := est * 2
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if remaining-estTokens < 0 && include > 0 {
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break
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}
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remaining -= estTokens
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include++
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}
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if include == 0 && len(events) > 0 {
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include = 1
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}
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// 第二轮：按时间正序渲染
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start := len(events) - include
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if start < 0 {
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start = 0
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}
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var sb strings.Builder
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sb.WriteString("【对话时序】\n")
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for _, e := range events[start:] {
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sb.WriteString(fmt.Sprintf("[%s] %s: %s",
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e.Timestamp.Format("15:04:05"), e.Source, e.Input))
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if len(e.ToolsUsed) > 0 {
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sb.WriteString(fmt.Sprintf(" → 调用工具: %s", strings.Join(e.ToolsUsed, ", ")))
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}
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if e.Response != "" {
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sb.WriteString(fmt.Sprintf(" → %s", truncateStr(e.Response, 120)))
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}
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sb.WriteString("\n")
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}
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return sb.String()
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}
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func (a *Agent) buildMessages(sysPrompt, input string, ctxTokens int) []agentAPI.Message {
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msgs := []agentAPI.Message{{Role: "system", Content: sysPrompt}}
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if ctxTok := a.formatMergedTimeline(ctxTokens); ctxTok != "" {
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msgs = append(msgs, agentAPI.Message{Role: "system", Content: ctxTok})
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}
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msgs = append(msgs, agentAPI.Message{Role: "user", Content: input})
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return msgs
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}
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