Merge pull request 'Land the full-agent capability batch (B1-B8): port v0.2, tool surface, exec tools, network, MCP, skills, compaction, delegation' (#3) from feature/full-agent-r1 into main
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This commit was merged in pull request #3.
This commit is contained in:
2026-10-01 05:53:57 +00:00
36 changed files with 4516 additions and 43 deletions
+8 -4
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@@ -10,7 +10,7 @@
| 层 | 职责 | 依赖边界 |
|---|---|---|
| contract | 执行契约:Request/Result/Outcome/Error/Capability/Backend/Resolver | 不依赖内核、产品类型、数据库、配置,也不导入错误码库 |
| exec | 执行端口:Backend/Request/Result/ProcessEvent、步骤重试与失败分类、交付物物化、Stub、并发限流 | 面向调用方的执行端口 |
| exec | 执行端口:Backend/Request/Result/ProcessEvent、预算、步骤重试与失败分类、交付物物化、Stub、并发限流 | 面向调用方的执行端口 |
| runtime | 多轮循环、工具调度、模型调用、执行会话 | 不导入 Core/Squad;可选使用日志库,nil 日志器不改变结果 |
| adapters | PI Runner transport / typed-result-v1;native:自研内核 runtime → exec.Backend(规范后端名 agent-native,含会话毒化轮转——resume-unsafe 失败后自动换新会话) | 显式映射外部差异,不伪造缺失能力 |
| conformance | 所有 Backend 共用的行为验收 | fake 验证契约,真实 adapter 验证能力 |
@@ -23,9 +23,13 @@
|---|---|
| contract | 四态执行契约 |
| conformance | 行为验收套件与 fake |
| exec | Backend/Request/Result/ProcessEvent、步骤重试与失败分类、交付物物化、Stub、并发限流 |
| runtime | 多轮循环、llm、session、tools(含单测) |
| adapters/native | runtime 作为 exec.Backend,含会话毒化轮转 |
| exec | Backend/Request/Result/ProcessEvent(v0.2:Model/ToolAllowlist/Skills/Budget/SessionScope/ExecutionID/Env)、Budget、步骤重试与失败分类、交付物物化、Stub、并发限流 |
| runtime | 多轮循环(预算/取消贯穿、budget_exceeded 事件)、llm、session(compaction/元数据/崩溃安全)、tools(9 内置 + 策略层 Restrict) |
| runtime/mcp | MCP 客户端(stdio + Streamable HTTP)与 mcp__<server>__<tool> 桥接(server 元数据不可信、上限收敛) |
| runtime/skills | SKILL.md 技能加载与 load_skill 渐进披露 |
| runtime/promptx | 系统提示结构化装配(环境事实 + 技能索引 + 交付物约束) |
| runtime/subagent | 委派端口(Request/Result/Factory)与 delegate_task 工具;嵌套执行由宿主注入 |
| adapters/native | runtime 作为 exec.Backend,含会话毒化轮转、compaction、技能/搜索/执行/MCP/委派装配(Options 显式注入,未配置不注册) |
| adapters/pitransport | typed-result-v1 编解码、远程结果解析、Runner 搜索、鉴权头(含 Node 摘要交叉验证测试) |
本模块不依赖 Core 或 Squad。上层产品依赖本模块的 contract 与 exec。
+212 -23
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@@ -15,7 +15,11 @@ import (
"agent-native/exec"
"agent-native/runtime"
"agent-native/runtime/llm"
"agent-native/runtime/mcp"
"agent-native/runtime/promptx"
"agent-native/runtime/session"
"agent-native/runtime/skills"
"agent-native/runtime/subagent"
"agent-native/runtime/tools"
"logging-system/logsys"
@@ -30,12 +34,38 @@ type Options struct {
Timeout time.Duration
// Stream 测试注入的流函数;缺省按 APIBase/APIKey 构造 llm.Client。
Stream llm.StreamFunc
// Search 可选:提供时注册 tavily_search / web_search(密钥由组合根注入)。
Search tools.SearchProvider
// Exec 可选:提供时注册 run_command / run_python(解释器留空项不注册)。
// nil = 不注册执行类工具(fail-closed,与 BashPermission 默认 deny 对齐)。
Exec *tools.ExecConfig
// Fetch 可选:提供时注册 fetch_url;nil = 不注册(fail-closed)。
Fetch *tools.FetchConfig
// MCP 可选:提供时把各 server 工具以 mcp__<server>__<tool> 注册进工作区。
// nil = 不注册(fail-closed:server 不可达时整个步骤失败,不静默跳过)。
MCP *mcp.Manager
// SkillsRoots 可选:全局技能根目录;执行时自动并入工作区 .agent/skills/。
SkillsRoots []string
// Compact 可选:转录超过阈值时把头部历史压成摘要(长会话上下文治理)。
Compact *CompactConfig
// Subagent 可选:提供时注册 delegate_task(委派由宿主实现,内核只开端口)。
Subagent subagent.Factory
// Log 可选。nil 时丢弃日志。
Log *logsys.Logger
// ExecutionID 写入日志,不参与执行控制。
ExecutionID string
}
// CompactConfig 声明长会话压缩策略(优化性质:压缩失败不阻断执行,但留日志)。
type CompactConfig struct {
// ThresholdChars 触发阈值(按字节数近似),默认 300_000。
ThresholdChars int
// KeepLastN 压缩后保留的最近消息条数,默认 8。
KeepLastN int
// Summarizer 可选注入摘要函数;缺省用后端 stream 做一次无工具调用。
Summarizer func(ctx context.Context, messages []llm.Message) (string, error)
}
// Backend 以自研内核实现 exec.Backend。
type Backend struct {
opts Options
@@ -53,6 +83,13 @@ func New(opts Options) *Backend {
// Name 返回规范后端名。
func (b *Backend) Name() string { return "agent-native" }
// Close 释放后端持有的长连接资源(MCP server 子进程等)。
func (b *Backend) Close() {
if b.opts.MCP != nil {
b.opts.MCP.Close()
}
}
// Execute 运行一轮带工具的自研智能体循环,产出目标交付物。
func (b *Backend) Execute(ctx context.Context, req exec.Request) (*exec.Result, error) {
if len(req.Targets) == 0 {
@@ -68,7 +105,11 @@ func (b *Backend) Execute(ctx context.Context, req exec.Request) (*exec.Result,
if b.opts.Stream == nil && (strings.TrimSpace(b.opts.APIBase) == "" || strings.TrimSpace(b.opts.APIKey) == "") {
return &exec.Result{Success: false, ErrorReason: "agent-native backend requires api base/key (or injected stream)"}, nil
}
if strings.TrimSpace(b.opts.Model) == "" {
model := strings.TrimSpace(b.opts.Model)
if strings.TrimSpace(req.Model) != "" {
model = strings.TrimSpace(req.Model)
}
if model == "" {
return &exec.Result{Success: false, ErrorReason: "agent-native backend requires model"}, nil
}
@@ -88,9 +129,48 @@ func (b *Backend) Execute(ctx context.Context, req exec.Request) (*exec.Result,
_ = os.WriteFile(filepath.Join(workDir, "TASK.md"), []byte(req.Prompt), 0o644)
}
// 技能:全局根 + 工作区 .agent/skills;声明的技能必须存在(fail-closed)。
roots := make([]string, 0, len(b.opts.SkillsRoots)+1)
roots = append(roots, b.opts.SkillsRoots...)
roots = append(roots, filepath.Join(workDir, ".agent", "skills"))
skillStore := skills.NewStore(roots...)
skillIndex := skillStore.List()
indexSet := make(map[string]bool, len(skillIndex))
for _, s := range skillIndex {
indexSet[s.Name] = true
}
for _, name := range req.Skills {
if !indexSet[name] {
return &exec.Result{Success: false, ErrorReason: "declared skill not installed: " + name}, nil
}
}
var reg *tools.Registry
if profile == exec.ToolProfileWorkspace {
reg = tools.WorkspaceTools(workDir)
skills.RegisterLoader(reg, skillStore)
if b.opts.Search != nil {
tools.RegisterSearch(reg, b.opts.Search)
}
if b.opts.Fetch != nil {
tools.RegisterFetch(reg, *b.opts.Fetch)
}
if b.opts.Exec != nil {
execCfg := *b.opts.Exec
for k, v := range req.Env {
execCfg.Env = append(execCfg.Env, k+"="+v)
}
tools.RegisterExecTools(reg, workDir, execCfg)
}
if b.opts.MCP != nil {
if err := b.opts.MCP.RegisterInto(ctx, reg); err != nil {
return &exec.Result{Success: false, ErrorReason: err.Error()}, nil
}
}
subagent.Register(reg, b.opts.Subagent)
if err := reg.Restrict(req.ToolAllowlist); err != nil {
return &exec.Result{Success: false, ErrorReason: err.Error()}, nil
}
}
// 会话毒化轮转:上次失败属 resume-unsafe 时,把旧 transcript 归档,
// 本次以全新会话开始(续跑毒化会话只会复现同样的失败)。
@@ -104,11 +184,33 @@ func (b *Backend) Execute(ctx context.Context, req exec.Request) (*exec.Result,
client := &llm.Client{BaseURL: b.opts.APIBase, APIKey: b.opts.APIKey}
stream = client.Stream
}
_ = store.SaveMeta(map[string]string{
"model": model,
"scope": req.SessionScope,
"exec_id": req.ExecutionID,
"updated": time.Now().UTC().Format(time.RFC3339),
})
b.maybeCompact(ctx, store, stream, model)
timeout := req.Timeout
if timeout <= 0 {
timeout = b.opts.Timeout
}
var runBudget *runtime.Budget
if req.Budget != nil {
runBudget = &runtime.Budget{
MaxPromptTokens: req.Budget.MaxPromptTokens,
MaxCompletionTokens: req.Budget.MaxCompletionTokens,
MaxToolCalls: req.Budget.MaxToolCalls,
Deadline: req.Budget.Deadline,
}
if !req.Budget.Deadline.IsZero() {
// Deadline 与 Timeout 先到者生效:把更短者作为 ctx 超时。
if until := time.Until(req.Budget.Deadline); timeout <= 0 || until < timeout {
timeout = until
}
}
}
runCtx := ctx
cancel := func() {}
if timeout > 0 {
@@ -116,9 +218,16 @@ func (b *Backend) Execute(ctx context.Context, req exec.Request) (*exec.Result,
}
defer cancel()
execID := req.ExecutionID
if strings.TrimSpace(execID) == "" {
execID = b.opts.ExecutionID
}
var logs strings.Builder
if strings.TrimSpace(execID) != "" || strings.TrimSpace(req.SessionScope) != "" {
logs.WriteString("execution_id=" + execID + " session=" + req.SessionScope + "\n")
}
onProcess := req.OnEvent
runRes, err := b.run(runCtx, reg, store, stream, profile, req, &logs, onProcess)
runRes, err := b.run(runCtx, model, runBudget, reg, store, stream, profile, req, workDir, skillIndex, &logs, onProcess)
if err != nil {
return &exec.Result{Success: false, ErrorReason: err.Error(), Logs: logs.String()}, nil
}
@@ -173,19 +282,24 @@ func (b *Backend) Execute(ctx context.Context, req exec.Request) (*exec.Result,
}
// run 驱动 runtime 循环并桥接过程事件(语义对齐主仓 pinative)。
func (b *Backend) run(ctx context.Context, reg *tools.Registry, store *session.Store,
stream llm.StreamFunc, profile string, req exec.Request, logs *strings.Builder,
onProcess func(exec.ProcessEvent)) (runtime.Result, error) {
func (b *Backend) run(ctx context.Context, model string, budget *runtime.Budget, reg *tools.Registry, store *session.Store,
stream llm.StreamFunc, profile string, req exec.Request, workDir string, skillIndex []skills.Skill,
logs *strings.Builder, onProcess func(exec.ProcessEvent)) (runtime.Result, error) {
execID := req.ExecutionID
if strings.TrimSpace(execID) == "" {
execID = b.opts.ExecutionID
}
runRes, err := runtime.Run(ctx, runtime.Config{
Model: b.opts.Model,
SystemPrompt: systemPrompt(req, profile),
Model: model,
SystemPrompt: b.systemPrompt(req, model, profile, workDir, skillIndex),
Tools: reg,
Stream: stream,
Session: store,
MaxTurns: b.opts.MaxTurns,
Log: b.logger(),
ExecutionID: b.opts.ExecutionID,
ExecutionID: execID,
Budget: budget,
OnEvent: func(ev runtime.Event) {
logs.WriteString(ev.Type)
if ev.Tool != "" {
@@ -210,6 +324,74 @@ func (b *Backend) run(ctx context.Context, reg *tools.Registry, store *session.S
return runRes, err
}
// maybeCompact 在转录超过阈值时压缩头部历史。压缩是优化性质:
// 失败不阻断执行(按原文继续),但必须留日志,不静默。
func (b *Backend) maybeCompact(ctx context.Context, store *session.Store, stream llm.StreamFunc, model string) {
cfg := b.opts.Compact
if cfg == nil {
return
}
threshold := int64(cfg.ThresholdChars)
if threshold <= 0 {
threshold = 300_000
}
keep := cfg.KeepLastN
if keep <= 0 {
keep = 8
}
if store.Stats().Bytes < threshold {
return
}
summarize := cfg.Summarizer
if summarize == nil {
summarize = defaultSummarizer(stream, model)
}
done, err := store.Compact(keep, func(messages []llm.Message) (string, error) {
return summarize(ctx, messages)
})
if err != nil {
b.logger().Warn("session compaction failed; continuing with full transcript", "error", err.Error())
return
}
if done {
b.logger().Info("session compacted", "keep_last", keep)
}
}
// defaultSummarizer 用后端 stream 做一次无工具调用,把历史压成摘要。
func defaultSummarizer(stream llm.StreamFunc, model string) func(ctx context.Context, messages []llm.Message) (string, error) {
return func(ctx context.Context, messages []llm.Message) (string, error) {
var b strings.Builder
for _, m := range messages {
b.WriteString(string(m.Role))
b.WriteString(": ")
b.WriteString(m.Content)
b.WriteString("\n")
if b.Len() > 120_000 {
break
}
}
prompt := "把以下智能体对话历史压缩成摘要:保留全部关键事实、已做决定、文件变更与未决问题;中文;不超过 800 字;只输出摘要正文。\n\n" + b.String()
var out strings.Builder
for ev := range stream(ctx, model, []llm.Message{{Role: llm.RoleUser, Content: prompt}}, nil, llm.StreamOptions{}) {
switch ev.Kind {
case llm.KindTextDelta:
out.WriteString(ev.Text)
case llm.KindError:
return "", ev.Err
}
}
if strings.TrimSpace(out.String()) == "" {
return "", errString("summarizer produced empty output")
}
return out.String(), nil
}
}
type errString string
func (e errString) Error() string { return string(e) }
// resumeUnsafeMarkers 续跑不安全的关键词(会话已被污染:上下文溢出/
// 迭代上限/非法请求——重试必须换新会话而非续跑)。
var resumeUnsafeMarkers = []string{
@@ -256,20 +438,27 @@ func (b *Backend) logger() *logsys.Logger {
return log.With("execution_id", b.opts.ExecutionID)
}
// systemPrompt 组装系统提示:角色指令 + 交付物与工具档位约束。
func systemPrompt(req exec.Request, profile string) string {
var b strings.Builder
if strings.TrimSpace(req.Instructions) != "" {
b.WriteString(req.Instructions)
b.WriteString("\n\n")
// systemPrompt 经 promptx 组装:角色指令 + 环境事实 + 技能索引 + 交付物约束。
func (b *Backend) systemPrompt(req exec.Request, model, profile, workDir string, skillIndex []skills.Skill) string {
var index []promptx.IndexEntry
for _, s := range skillIndex {
index = append(index, promptx.IndexEntry{Name: s.Name, Description: s.Description})
}
b.WriteString("Deliverable files: ")
b.WriteString(strings.Join(req.Targets, ", "))
b.WriteString(".")
if profile == exec.ToolProfileWorkspace {
b.WriteString(" Use workspace tools to write those files. Do not invent paths outside the workspace.")
} else {
b.WriteString(" Reply with the deliverable text only. Tools are disabled.")
}
return b.String()
now := time.Now()
weekday := map[string]string{
"Sunday": "周日", "Monday": "周一", "Tuesday": "周二", "Wednesday": "周三",
"Thursday": "周四", "Friday": "周五", "Saturday": "周六",
}[now.Weekday().String()]
return promptx.Compose(promptx.Parts{
Instructions: req.Instructions,
SkillsDeclared: req.Skills,
SkillsIndex: index,
Deliverables: req.Targets,
Env: promptx.EnvFacts{
Date: now.Format("2006-01-02") + "(" + weekday + ")",
Model: model,
WorkspaceRoot: workDir,
Profile: profile,
},
})
}
+69
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@@ -0,0 +1,69 @@
package native
import (
"context"
"os"
"path/filepath"
"strings"
"testing"
"agent-native/exec"
"agent-native/runtime/llm"
)
func TestBackendCompactBeforeRun(t *testing.T) {
dir := t.TempDir()
// 预置一份超阈值的长转录(系统消息 + 12 条历史)。
transcript := filepath.Join(dir, ".agentx", "transcript.jsonl")
if err := os.MkdirAll(filepath.Dir(transcript), 0o755); err != nil {
t.Fatal(err)
}
var b strings.Builder
b.WriteString(`{"role":"system","content":"sys"}` + "\n")
for i := 0; i < 12; i++ {
b.WriteString(`{"role":"user","content":"` + strings.Repeat("x", 400) + `"}` + "\n")
}
if err := os.WriteFile(transcript, []byte(b.String()), 0o644); err != nil {
t.Fatal(err)
}
var sawSummary bool
// 注入式捕获:验证 Run 收到的消息里有摘要标记。
bk2 := New(Options{
Model: "fake",
Stream: captureFirstStream(&sawSummary),
Compact: &CompactConfig{ThresholdChars: 1000, KeepLastN: 3, Summarizer: func(ctx context.Context, messages []llm.Message) (string, error) {
return "预置历史摘要", nil
}},
})
res, err := bk2.Execute(context.Background(), exec.Request{
WorkDir: dir, Prompt: "继续", Targets: []string{"output.md"},
ToolProfile: exec.ToolProfileReasoning,
})
if err != nil {
t.Fatal(err)
}
if res.Success && !sawSummary {
t.Fatal("compaction should have run before the loop")
}
data, _ := os.ReadFile(transcript)
if !strings.Contains(string(data), "[conversation summary]") {
t.Fatalf("transcript should contain the summary marker, got:\n%.200s", data)
}
}
func captureFirstStream(saw *bool) llm.StreamFunc {
return func(ctx context.Context, model string, messages []llm.Message, decls []llm.ToolDecl, opts llm.StreamOptions) <-chan llm.Event {
for _, m := range messages {
if strings.Contains(m.Content, "[conversation summary]") {
*saw = true
}
}
ch := make(chan llm.Event, 4)
go func() {
defer close(ch)
ch <- llm.Event{Kind: llm.KindMessageEnd, Message: llm.Message{Role: llm.RoleAssistant, Content: "压缩后续写完成", StopReason: llm.StopEnd}}
}()
return ch
}
}
+342
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@@ -0,0 +1,342 @@
package native
import (
"context"
"os"
osexec "os/exec"
"path/filepath"
"strings"
"testing"
"agent-native/exec"
"agent-native/runtime/llm"
"agent-native/runtime/mcp"
"agent-native/runtime/subagent"
"agent-native/runtime/tools"
)
func TestBackendExecToolsWiredWithOptionsAndRequestEnv(t *testing.T) {
bash, err := osexec.LookPath("bash")
if err != nil {
t.Fatalf("bash not available: %v", err)
}
dir := t.TempDir()
b := New(Options{
Model: "fake",
Stream: script(
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c1", Name: "run_command",
Arguments: `{"command":"echo role=$ROLE_FLAG step=$STEP_FLAG > exec_out.txt"}`,
}}},
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c2", Name: "write_file",
Arguments: `{"path":"output.md","content":"done"}`,
}}},
llm.Message{Role: llm.RoleAssistant, Content: "ok", StopReason: llm.StopEnd},
),
Exec: &tools.ExecConfig{Bash: bash, Env: []string{"PATH=/usr/bin:/bin", "ROLE_FLAG=backend"}},
})
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: dir, Prompt: "run", Targets: []string{"output.md"},
Env: map[string]string{"STEP_FLAG": "request"},
})
if err != nil || !res.Success {
t.Fatalf("execute: err=%v res=%+v logs=%s", err, res, res.Logs)
}
data, err := os.ReadFile(filepath.Join(dir, "exec_out.txt"))
if err != nil {
t.Fatal(err)
}
if !strings.Contains(string(data), "role=backend") || !strings.Contains(string(data), "step=request") {
t.Fatalf("env merge wrong: %q", data)
}
}
func TestBackendExecToolsAbsentWithoutOptions(t *testing.T) {
stream, c := captureStream()
b := New(Options{Model: "fake", Stream: stream})
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: t.TempDir(), Prompt: "x", Targets: []string{"output.md"},
ToolProfile: exec.ToolProfileReasoning,
})
if err != nil || !res.Success {
t.Fatalf("execute: err=%v res=%+v", err, res)
}
// reasoning 档本无工具;改用 workspace 档断言 decls 不含执行工具。
stream2, c2 := captureStream()
b2 := New(Options{Model: "fake", Stream: stream2})
_, _ = b2.Execute(context.Background(), exec.Request{
WorkDir: t.TempDir(), Prompt: "x", Targets: []string{"output.md"},
ToolProfile: exec.ToolProfileWorkspace,
})
for _, names := range c2.toolDecls {
for _, n := range names {
if n == "run_command" || n == "run_python" {
t.Fatalf("exec tools must not register without Options.Exec, got %v", names)
}
}
}
_ = c
}
func TestBackendAllowlistCanDisableExecTools(t *testing.T) {
bash, _ := osexec.LookPath("bash")
stream, c := captureStream()
b := New(Options{
Model: "fake", Stream: stream,
Exec: &tools.ExecConfig{Bash: bash, Env: []string{"PATH=/usr/bin:/bin"}},
})
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: t.TempDir(), Prompt: "x", Targets: []string{"output.md"},
ToolAllowlist: []string{"read_file", "write_file", "edit_file", "list_dir", "grep", "glob", "multi_edit"},
})
if err != nil {
t.Fatal(err)
}
if res.Success {
t.Fatalf("write-only allowlist without write? (unexpected) res=%+v", res)
}
for _, names := range c.toolDecls {
for _, n := range names {
if n == "run_command" {
t.Fatalf("allowlist must be able to strip run_command, got %v", names)
}
}
}
}
// fakeSearchProvider 与 tools 包测试同构的最小搜索替身。
type fakeSearchProvider struct{ query string }
func (f *fakeSearchProvider) Search(_ context.Context, req tools.SearchRequest) (tools.SearchResponse, error) {
f.query = req.Query
return tools.SearchResponse{Answer: "ans", Results: []tools.SearchResult{{Title: "T", Content: "C", Score: 0.9}}}, nil
}
func TestBackendSearchToolsWiredViaOptions(t *testing.T) {
provider := &fakeSearchProvider{}
stream, c := captureStream(
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c1", Name: "web_search", Arguments: `{"query":"golang generics"}`,
}}},
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c2", Name: "write_file",
Arguments: `{"path":"output.md","content":"done"}`,
}}},
llm.Message{Role: llm.RoleAssistant, Content: "ok", StopReason: llm.StopEnd},
)
b := New(Options{Model: "fake", Stream: stream, Search: provider})
dir := t.TempDir()
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: dir, Prompt: "search", Targets: []string{"output.md"},
})
if err != nil || !res.Success {
t.Fatalf("execute: err=%v res=%+v logs=%s", err, res, res.Logs)
}
if provider.query != "golang generics" {
t.Fatalf("provider should receive the query, got %q", provider.query)
}
// 搜索工具确实出现在 decls 里。
found := false
for _, names := range c.toolDecls {
for _, n := range names {
if n == "web_search" || n == "tavily_search" {
found = true
}
}
}
if !found {
t.Fatal("search tools must be declared when Options.Search is set")
}
}
func TestBackendSearchToolsAbsentWithoutOptions(t *testing.T) {
stream, c := captureStream()
b := New(Options{Model: "fake", Stream: stream})
_, _ = b.Execute(context.Background(), exec.Request{
WorkDir: t.TempDir(), Prompt: "x", Targets: []string{"output.md"},
ToolProfile: exec.ToolProfileWorkspace,
})
for _, names := range c.toolDecls {
for _, n := range names {
if n == "web_search" || n == "tavily_search" {
t.Fatalf("search tools must not register without Options.Search, got %v", names)
}
}
}
}
func TestBackendMCPToolsWiredViaOptions(t *testing.T) {
exe, err := osexec.LookPath(os.Args[0])
if err != nil {
t.Fatal(err)
}
// os.Args[0] 在 go test 下指向测试二进制——用其自身作为 MCP server。
mgr, err := mcp.NewManager([]mcp.ServerConfig{{
Name: "fake", Command: exe,
Env: append(os.Environ(), "AGENT_NATIVE_TEST_MCP_STDIO=1"),
}})
if err != nil {
t.Fatal(err)
}
defer mgr.Close()
stream, c := captureStream(
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c1", Name: "mcp__fake__echo", Arguments: `{"text":"via-backend"}`,
}}},
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c2", Name: "write_file",
Arguments: `{"path":"output.md","content":"done"}`,
}}},
llm.Message{Role: llm.RoleAssistant, Content: "ok", StopReason: llm.StopEnd},
)
b := New(Options{Model: "fake", Stream: stream, MCP: mgr})
dir := t.TempDir()
res, err2 := b.Execute(context.Background(), exec.Request{
WorkDir: dir, Prompt: "call mcp", Targets: []string{"output.md"},
})
if err2 != nil || !res.Success {
t.Fatalf("execute: err=%v res=%+v logs=%s", err2, res, res.Logs)
}
found := false
for _, names := range c.toolDecls {
for _, n := range names {
if n == "mcp__fake__echo" {
found = true
}
}
}
if !found {
t.Fatal("mcp bridge tools must be declared to the model")
}
}
func TestBackendSkillsIndexAndLoader(t *testing.T) {
skillsRoot := t.TempDir()
skillDir := filepath.Join(skillsRoot, "docx-author")
if err := os.MkdirAll(skillDir, 0o755); err != nil {
t.Fatal(err)
}
if err := os.WriteFile(filepath.Join(skillDir, "SKILL.md"), []byte("---\ndescription: 生成文档交付物\n---\n\n配方正文"), 0o644); err != nil {
t.Fatal(err)
}
stream, c := captureStream(
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c1", Name: "load_skill", Arguments: `{"name":"docx-author"}`,
}}},
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c2", Name: "write_file", Arguments: `{"path":"output.md","content":"done"}`,
}}},
llm.Message{Role: llm.RoleAssistant, Content: "ok", StopReason: llm.StopEnd},
)
b := New(Options{Model: "fake", Stream: stream, SkillsRoots: []string{skillsRoot}})
dir := t.TempDir()
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: dir, Prompt: "写", Targets: []string{"output.md"}, Skills: []string{"docx-author"},
})
if err != nil || !res.Success {
t.Fatalf("execute: err=%v res=%+v logs=%s", err, res, res.Logs)
}
if !strings.Contains(c.system, "- docx-author — 生成文档交付物") {
t.Fatalf("skill index missing in system prompt:\n%s", c.system)
}
if !strings.Contains(c.system, "Declared for this task") || !strings.Contains(c.system, "docx-author") {
t.Fatalf("declared skills missing:\n%s", c.system)
}
sawLoader := false
for _, names := range c.toolDecls {
for _, n := range names {
if n == "load_skill" {
sawLoader = true
}
}
}
if !sawLoader {
t.Fatal("load_skill must be declared when skills exist")
}
}
func TestBackendDeclaredSkillMissingFailsClosed(t *testing.T) {
b := New(Options{Model: "fake", Stream: script(), SkillsRoots: []string{t.TempDir()}})
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: t.TempDir(), Prompt: "x", Targets: []string{"output.md"},
Skills: []string{"ghost-skill"},
})
if err != nil {
t.Fatal(err)
}
if res.Success || !strings.Contains(res.ErrorReason, "declared skill not installed: ghost-skill") {
t.Fatalf("missing declared skill must fail-closed, got %+v", res)
}
}
func TestBackendWorkspaceSkillsRootAutoMerged(t *testing.T) {
stream, c := captureStream(
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c1", Name: "write_file", Arguments: `{"path":"output.md","content":"done"}`,
}}},
llm.Message{Role: llm.RoleAssistant, Content: "ok", StopReason: llm.StopEnd},
)
b := New(Options{Model: "fake", Stream: stream})
dir := t.TempDir()
wsSkill := filepath.Join(dir, ".agent", "skills", "ws-skill")
if err := os.MkdirAll(wsSkill, 0o755); err != nil {
t.Fatal(err)
}
if err := os.WriteFile(filepath.Join(wsSkill, "SKILL.md"), []byte("---\ndescription: 工作区技能\n---\n正文"), 0o644); err != nil {
t.Fatal(err)
}
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: dir, Prompt: "x", Targets: []string{"output.md"},
})
if err != nil || !res.Success {
t.Fatalf("execute: err=%v res=%+v", err, res)
}
if !strings.Contains(c.system, "ws-skill") {
t.Fatalf("workspace skills root must be merged into index:\n%s", c.system)
}
}
func TestBackendSubagentWiredViaOptions(t *testing.T) {
var delegated *subagent.Request
stream, c := captureStream(
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c1", Name: "delegate_task",
Arguments: `{"goal":"查证数据","write_scope":"research/","done_criteria":"三来源"}`,
}}},
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c2", Name: "write_file",
Arguments: `{"path":"output.md","content":"done"}`,
}}},
llm.Message{Role: llm.RoleAssistant, Content: "ok", StopReason: llm.StopEnd},
)
b := New(Options{
Model: "fake",
Stream: stream,
Subagent: func(ctx context.Context, req subagent.Request) (subagent.Result, error) {
delegated = &req
return subagent.Result{Success: true, Text: "结论已查明"}, nil
},
})
dir := t.TempDir()
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: dir, Prompt: "分工", Targets: []string{"output.md"},
})
if err != nil || !res.Success {
t.Fatalf("execute: err=%v res=%+v logs=%s", err, res, res.Logs)
}
if delegated == nil || delegated.Goal != "查证数据" {
t.Fatalf("factory not invoked with fields: %+v", delegated)
}
sawDelegate := false
for _, names := range c.toolDecls {
for _, n := range names {
if n == "delegate_task" {
sawDelegate = true
}
}
}
if !sawDelegate {
t.Fatal("delegate_task must be declared when Subagent factory is set")
}
}
+17
View File
@@ -0,0 +1,17 @@
package native
import (
"os"
"testing"
"agent-native/runtime/mcp"
)
// TestMain:MCP fake server 的 re-exec 分支(详见 mcp.RunFakeServer)。
func TestMain(m *testing.M) {
if os.Getenv(mcp.FakeServerEnv) == "1" {
mcp.RunFakeServer()
os.Exit(0)
}
os.Exit(m.Run())
}
+183
View File
@@ -0,0 +1,183 @@
package native
import (
"context"
"os"
"path/filepath"
"strings"
"sync"
"testing"
"time"
"agent-native/exec"
"agent-native/runtime/llm"
)
// captureStream 捕获每次调用的 model / 首条 system 消息,并按序回放回合。
func captureStream(turns ...llm.Message) (llm.StreamFunc, *capture) {
c := &capture{}
var mu sync.Mutex
i := 0
return func(ctx context.Context, model string, messages []llm.Message, tools []llm.ToolDecl, opts llm.StreamOptions) <-chan llm.Event {
ch := make(chan llm.Event, 4)
go func() {
defer close(ch)
mu.Lock()
defer mu.Unlock()
c.models = append(c.models, model)
c.toolDecls = append(c.toolDecls, toolNames(tools))
if len(messages) > 0 && messages[0].Role == llm.RoleSystem {
c.system = messages[0].Content
}
if i >= len(turns) {
ch <- llm.Event{Kind: llm.KindMessageEnd, Message: llm.Message{Role: llm.RoleAssistant, Content: "done", StopReason: llm.StopEnd}}
return
}
msg := turns[i]
i++
ch <- llm.Event{Kind: llm.KindMessageEnd, Message: msg}
}()
return ch
}, c
}
type capture struct {
mu sync.Mutex
models []string
toolDecls [][]string
system string
}
func toolNames(decls []llm.ToolDecl) []string {
var out []string
for _, d := range decls {
out = append(out, d.Name)
}
return out
}
func TestBackendRequestModelOverride(t *testing.T) {
stream, c := captureStream()
b := New(Options{Model: "default-model", Stream: stream})
dir := t.TempDir()
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: dir, Prompt: "hi", Targets: []string{"output.md"}, Model: "override-model",
ToolProfile: exec.ToolProfileReasoning,
})
if err != nil || !res.Success {
t.Fatalf("execute: err=%v res=%+v", err, res)
}
if len(c.models) == 0 || c.models[0] != "override-model" {
t.Fatalf("want override-model, got %v", c.models)
}
}
func TestBackendRequestToolAllowlist(t *testing.T) {
stream, c := captureStream(
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c1", Name: "write_file", Arguments: `{"path":"output.md","content":"blocked"}`,
}}},
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c2", Name: "write_file", Arguments: `{"path":"output2.md","content":"still blocked"}`,
}}},
llm.Message{Role: llm.RoleAssistant, Content: "gave up", StopReason: llm.StopEnd},
)
b := New(Options{Model: "fake", Stream: stream})
dir := t.TempDir()
// 目标 output2.md 不在 allowlist 内能写吗?——write_file 被整体收窄,
// 模型两次尝试都会得到 unknown tool,最终无交付物 → 失败。
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: dir, Prompt: "写文件", Targets: []string{"output2.md"},
ToolAllowlist: []string{"read_file", "list_dir", "grep"},
})
if err != nil {
t.Fatal(err)
}
if res.Success {
t.Fatalf("write_file restricted out; deliverable must fail, got %+v", res)
}
if len(c.toolDecls) == 0 {
t.Fatal("expected tool decls")
}
for _, names := range c.toolDecls {
for _, n := range names {
if n == "write_file" || n == "edit_file" {
t.Fatalf("write/edit must be restricted out of decls, got %v", names)
}
}
}
}
func TestBackendRequestUnknownAllowlistFailsClosed(t *testing.T) {
b := New(Options{Model: "fake", Stream: script()})
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: t.TempDir(), Prompt: "x", Targets: []string{"output.md"},
ToolAllowlist: []string{"read_file", "no_such_tool"},
})
if err != nil {
t.Fatal(err)
}
if res.Success || !strings.Contains(res.ErrorReason, "no_such_tool") {
t.Fatalf("want fail-closed unknown allowlist name, got %+v", res)
}
}
func TestBackendRequestBudgetDeadlineBindsContext(t *testing.T) {
deadlineHit := make(chan struct{})
var once sync.Once
stream := func(ctx context.Context, model string, messages []llm.Message, tools []llm.ToolDecl, opts llm.StreamOptions) <-chan llm.Event {
ch := make(chan llm.Event, 4)
go func() {
defer close(ch)
select {
case <-ctx.Done():
once.Do(func() { close(deadlineHit) })
ch <- llm.Event{Kind: llm.KindError, Err: ctx.Err(), Message: llm.Message{StopReason: llm.StopAborted}}
case <-time.After(3 * time.Second):
ch <- llm.Event{Kind: llm.KindMessageEnd, Message: llm.Message{Role: llm.RoleAssistant, Content: "done", StopReason: llm.StopEnd}}
}
}()
return ch
}
b := New(Options{Model: "fake", Stream: stream})
start := time.Now()
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: t.TempDir(), Prompt: "x", Targets: []string{"output.md"},
Timeout: 30 * time.Second, // 长超时,预算截止应更先生效
Budget: &exec.Budget{Deadline: time.Now().Add(150 * time.Millisecond)},
})
if err != nil {
t.Fatal(err)
}
select {
case <-deadlineHit:
case <-time.After(2 * time.Second):
t.Fatal("budget deadline should bind the run context")
}
if res.Success {
t.Fatalf("deadline run must not succeed, got %+v", res)
}
if elapsed := time.Since(start); elapsed > 5*time.Second {
t.Fatalf("deadline should fire early, took %s", elapsed)
}
}
func TestBackendRequestExecutionIDInLogs(t *testing.T) {
stream, _ := captureStream()
b := New(Options{Model: "fake", Stream: stream})
dir := t.TempDir()
res, err := b.Execute(context.Background(), exec.Request{
WorkDir: dir, Prompt: "hi", Targets: []string{"output.md"},
Instructions: "你是角色",
ExecutionID: "exec-42", SessionScope: "run-9/step-3",
ToolProfile: exec.ToolProfileReasoning,
})
if err != nil || !res.Success {
t.Fatalf("execute: err=%v res=%+v", err, res)
}
logBytes, _ := os.ReadFile(filepath.Join(dir, "execution.log"))
logs := string(logBytes)
if !strings.Contains(logs, "execution_id=exec-42") || !strings.Contains(logs, "run-9/step-3") {
t.Fatalf("execution log should carry ids, got:\n%s", logs)
}
}
+23
View File
@@ -66,3 +66,26 @@ baseline_fixed: true
- 本矩阵证据均指向仓库内文件(上文路径),不含运行时截图;
- Batch1 完成后在本文件追加"实测证据"列;
- 上游仅引固定 0.85.1 的 README/docs 结论,不引 main。
---
## R15 扩面批次(full-agent-r1,2026-10-01):从「wrapper 对标」到「完全智能体」
用户定调(2026-10-01):Agent-Native 补全 pi-Agent 全量工具调用能力(网络搜索、代码编写、
系统工具、外部工具调用、技能、提示词),并与 Agent-Squad 融合。扩面域**不做 pi 对标**
(上游 wrapper 未暴露这些能力),改以「标准符合 + conformance 负例 + 产品验收」为准——
对标口径条款对本批新增域不适用,原有 #1–#16 行继续有效。
| 域 | 内容 | 出口证据 |
|---|---|---|
| 执行基座 | exec.Request v0.2(Model/ToolAllowlist/Skills/Budget/SessionScope/ExecutionID/Env)+ Registry.Restrict 策略层(精确名 + 命名空间通配)+ 预算贯穿(token/工具数/截止,budget_exceeded 永久失败)+ 取消传播到工具 | loop_budget / registry_policy / request_v2 / step_retry_budget 测试;关闭 #4/#10/#16 |
| 代码工具面 | glob(** 跨目录)、grep 正则/include/ignore_case、read 行范围分页、multi_edit 原子多处替换 | code_tools_test.go |
| 系统工具 | run_command / run_python:解释器白名单、env 白名单(宿主密钥不透传)、进程组 SIGKILL(超时/取消)、64KB 头尾截断、命令黑名单、脚本落盘 .agent/scripts/;Options.Exec 未配置不注册 | exec_tools_test.go(含杀组时限断言) |
| 网络面 | tavily_search/web_search 经 Options.Search 接线(关闭 #5 尾环);fetch_url:SSRF 硬边界(私网/回环/链路本地/元数据端点逐跳校验)、域名策略、2MB/20s、HTML 剥离 | fetch_test.go + 适配器接线测试 |
| MCP | stdio + Streamable HTTP 客户端、initialize/tools/list(paged)/tools/call、Mcp-Session-Id、mcp__<server>__<tool> 桥接、64 工具/1KB 描述/64KB 结果上限、不可达 fail-closed、真实子进程测试(re-exec fake server) | runtime/mcp/mcp_test.go |
| 技能/提示词 | SKILL.md 加载(目录名权威、frontmatter 描述)、load_skill 渐进披露、声明技能 fail-closed 校验、promptx 装配器(环境/技能索引/交付物) | skills_test / promptx_test / 适配器测试 |
| 会话 | compaction(阈值触发、原子改写、失败留痕不阻断)、元数据 sidecar、崩溃半行容错 | compact_test.go;对齐 #11/#12 |
| 委派 | runtime/subagent 端口 + delegate_task(信息集=委派条款);嵌套执行由宿主注入 | subagent_test.go |
安全声明(不冒充已解决):run_command **不是 OS 沙箱**(宿主负责隔离);技能正文与 MCP
server 描述是提示注入面(只信受信根 + 长度上限);fetch 的 DNS 解析存在 rebinding 窗口。
+28
View File
@@ -17,6 +17,34 @@ type Request struct {
// 实现方必须保证:回调在 Execute 返回前完成(同步调用或等待收尾),无泄漏 goroutine;
// 回调内不得阻塞(消费方自行节流/异步入队)。
OnEvent func(ev ProcessEvent)
// ---- v0.2 能力字段(全部可选;零值 = 既有行为,向后兼容) ----
// Model 覆盖本请求使用的模型(后端构造时的默认模型仍兜底)。
Model string `json:"model,omitempty"`
// ToolAllowlist 收窄可见工具集;出现后端未注册的工具名时 fail-closed。
ToolAllowlist []string `json:"tool_allowlist,omitempty"`
// Skills 声明本次执行需要加载的技能(内核在系统提示中列出并由 load_skill 按需展开)。
Skills []string `json:"skills,omitempty"`
// Budget 单次步骤执行的共享预算;步骤重试应传入剩余额度,不得各自另起一份。
Budget *Budget `json:"budget,omitempty"`
// SessionScope / ExecutionID 只用于日志与过程事件贯穿,不参与控制流。
SessionScope string `json:"session_scope,omitempty"`
ExecutionID string `json:"execution_id,omitempty"`
// Env 是组合根批准后注入执行类工具(run_command 等)的白名单环境变量。
// 后端不得把自身持有的密钥并入其中。
Env map[string]string `json:"env,omitempty"`
}
// Budget 是一次步骤执行的共享预算(agent-execution 标准:重试层各有职责,
// 共享总预算与截止时间,避免传输、步骤与主循环次数相乘)。
// 全部字段可选;零值字段不设限。
type Budget struct {
MaxPromptTokens int `json:"max_prompt_tokens,omitempty"`
MaxCompletionTokens int `json:"max_completion_tokens,omitempty"`
MaxToolCalls int `json:"max_tool_calls,omitempty"`
// Deadline 绝对截止时刻;与 Request.Timeout 先到者生效。
Deadline time.Time `json:"deadline,omitempty"`
}
// ProcessEvent 对 agentx 事件与远程 runner NDJSON 过程帧的统一投影,
+1
View File
@@ -160,6 +160,7 @@ func combinedFailureText(sig StepFailureSignals) string {
func isPermanentReason(lower string) bool {
return strings.Contains(lower, "prompt_empty") ||
strings.Contains(lower, "unauthorized") ||
strings.Contains(lower, "budget_exceeded") ||
strings.Contains(lower, "治理强制终止") ||
strings.Contains(lower, "治理拦截")
}
+37
View File
@@ -0,0 +1,37 @@
package exec
import (
"errors"
"strings"
"testing"
"time"
)
func TestAssessStepFailureBudgetExceededIsPermanent(t *testing.T) {
ass := AssessStepFailure(StepFailureSignals{
Err: errors.New("budget_exceeded: tool calls 12 > max 10"),
})
if ass.Class != FailurePermanent {
t.Fatalf("budget exhaustion must classify permanent (no auto retry), got %s", ass.Class)
}
if !strings.Contains(ass.Reason, "permanent") {
t.Fatalf("want permanent reason, got %s", ass.Reason)
}
}
func TestAssessStepFailureDeadlinePastIsPermanent(t *testing.T) {
ass := AssessStepFailure(StepFailureSignals{
Result: &Result{ErrorReason: "budget_exceeded: deadline 2026-10-01T00:00:00Z passed"},
})
if ass.Class != FailurePermanent {
t.Fatalf("deadline exhaustion must classify permanent, got %s", ass.Class)
}
}
func TestBudgetZeroValueUnlimited(t *testing.T) {
var b Budget
if b.MaxPromptTokens != 0 || b.MaxCompletionTokens != 0 || b.MaxToolCalls != 0 || !b.Deadline.IsZero() {
t.Fatal("zero budget must express unlimited")
}
_ = time.Now
}
+51
View File
@@ -3,8 +3,10 @@ package runtime
import (
"context"
"encoding/json"
"fmt"
"strings"
"sync"
"time"
"agent-native/runtime/llm"
"agent-native/runtime/session"
@@ -45,6 +47,17 @@ type Config struct {
Log *logsys.Logger
// ExecutionID 只用于日志字段,不参与控制流。
ExecutionID string
// Budget 可选。任一上限命中即停止并返回 budget_exceeded 错误(StopError);
// 零值字段不设限。截止时刻与外层 ctx 先到者生效。
Budget *Budget
}
// Budget 是循环层的执行预算;与 exec.Budget 字段同构,由适配层换算。
type Budget struct {
MaxPromptTokens int
MaxCompletionTokens int
MaxToolCalls int
Deadline time.Time
}
// Result is the final assistant text and the transcript produced by one run.
@@ -91,11 +104,15 @@ func Run(ctx context.Context, cfg Config, user llm.Message) (Result, error) {
var last llm.Message
var usage llm.Usage
toolCalls := 0
for turn := 0; turn < cfg.MaxTurns; turn++ {
if ctx.Err() != nil {
cfg.logger().Error("runtime turn aborted", ctx.Err())
return Result{Text: last.Content, Messages: messages, StopReason: llm.StopAborted, Err: ctx.Err()}, nil
}
if reason := budgetExceeded(cfg.Budget, usage, toolCalls, time.Now()); reason != "" {
return budgetStop(cfg, last, messages, usage, reason), nil
}
emit(cfg, Event{Type: "turn_start"})
end, errEv := consume(ctx, cfg, messages)
if errEv != nil {
@@ -113,6 +130,11 @@ func Run(ctx context.Context, cfg Config, user llm.Message) (Result, error) {
emit(cfg, Event{Type: "message_end", Message: last})
if last.StopReason == llm.StopToolCalls && len(last.ToolCalls) > 0 {
if cfg.Budget != nil && cfg.Budget.MaxToolCalls > 0 && toolCalls+len(last.ToolCalls) > cfg.Budget.MaxToolCalls {
reason := fmt.Sprintf("budget_exceeded: tool calls %d+%d > max %d", toolCalls, len(last.ToolCalls), cfg.Budget.MaxToolCalls)
return budgetStop(cfg, last, messages, usage, reason), nil
}
toolCalls += len(last.ToolCalls)
results := executeTools(ctx, cfg, last)
for _, res := range results {
if err := persist(cfg, res); err != nil {
@@ -280,6 +302,35 @@ func emit(cfg Config, ev Event) {
}
}
// budgetExceeded 返回命中的预算说明;空串表示预算仍充足(或未设预算)。
// 只在「即将消耗更多预算」的节点调用(轮次顶端 / 工具批执行前)。
func budgetExceeded(b *Budget, usage llm.Usage, toolCalls int, now time.Time) string {
if b == nil {
return ""
}
if !b.Deadline.IsZero() && now.After(b.Deadline) {
return fmt.Sprintf("budget_exceeded: deadline %s passed", b.Deadline.Format(time.RFC3339))
}
if b.MaxPromptTokens > 0 && usage.PromptTokens > b.MaxPromptTokens {
return fmt.Sprintf("budget_exceeded: prompt tokens %d > max %d", usage.PromptTokens, b.MaxPromptTokens)
}
if b.MaxCompletionTokens > 0 && usage.CompletionTokens > b.MaxCompletionTokens {
return fmt.Sprintf("budget_exceeded: completion tokens %d > max %d", usage.CompletionTokens, b.MaxCompletionTokens)
}
if b.MaxToolCalls > 0 && toolCalls > b.MaxToolCalls {
return fmt.Sprintf("budget_exceeded: tool calls %d > max %d", toolCalls, b.MaxToolCalls)
}
return ""
}
// budgetStop 以预算超限收尾:发事件、留日志、按 StopError 返回(不可重试)。
func budgetStop(cfg Config, last llm.Message, messages []llm.Message, usage llm.Usage, reason string) Result {
emit(cfg, Event{Type: "budget_exceeded", Text: reason})
err := errString(reason)
cfg.logger().Error("runtime budget exceeded", err)
return Result{Text: last.Content, Messages: messages, StopReason: llm.StopError, Usage: usage, Err: err}
}
type errString string
func (e errString) Error() string { return string(e) }
+194
View File
@@ -0,0 +1,194 @@
package runtime
import (
"context"
"encoding/json"
"strings"
"testing"
"time"
"agent-native/runtime/llm"
"agent-native/runtime/tools"
)
// usageScript 产出带 usage 的固定回合,用于预算测试。
func usageScript(usage llm.Usage, turns ...llm.Message) llm.StreamFunc {
var i int
return func(ctx context.Context, model string, messages []llm.Message, decls []llm.ToolDecl, opts llm.StreamOptions) <-chan llm.Event {
ch := make(chan llm.Event, 4)
go func() {
defer close(ch)
if i >= len(turns) {
ch <- llm.Event{Kind: llm.KindMessageEnd, Message: llm.Message{Role: llm.RoleAssistant, Content: "done", StopReason: llm.StopEnd}, Usage: usage}
return
}
msg := turns[i]
i++
ch <- llm.Event{Kind: llm.KindMessageEnd, Message: msg, Usage: usage}
}()
return ch
}
}
func TestLoopBudgetToolCallCap(t *testing.T) {
dir := t.TempDir()
reg := tools.WorkspaceTools(dir)
sawBudgetEvent := false
res, err := Run(context.Background(), Config{
Model: "fake",
Tools: reg,
Budget: &Budget{MaxToolCalls: 1},
OnEvent: func(ev Event) {
if ev.Type == "budget_exceeded" {
sawBudgetEvent = true
}
},
Stream: usageScript(llm.Usage{},
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c1", Name: "list_dir", Arguments: `{}`,
}}},
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{
{ID: "c2", Name: "list_dir", Arguments: `{}`},
{ID: "c3", Name: "list_dir", Arguments: `{}`},
}},
llm.Message{Role: llm.RoleAssistant, Content: "never", StopReason: llm.StopEnd},
),
}, llm.Message{Role: llm.RoleUser, Content: "loop tools"})
if err != nil {
t.Fatal(err)
}
if res.StopReason != llm.StopError || res.Err == nil || !strings.Contains(res.Err.Error(), "budget_exceeded") {
t.Fatalf("want budget_exceeded stop, got stop=%s err=%v", res.StopReason, res.Err)
}
if !strings.Contains(res.Err.Error(), "tool calls") {
t.Fatalf("want tool-call budget reason, got %v", res.Err)
}
if !sawBudgetEvent {
t.Fatal("expected budget_exceeded event")
}
// 第二批工具调用不该被执行(预算在执行前拦截):transcript 只含一次 tool 结果。
toolResults := 0
for _, m := range res.Messages {
if m.Role == llm.RoleTool {
toolResults++
}
}
if toolResults != 1 {
t.Fatalf("expected exactly 1 tool result, got %d", toolResults)
}
}
func TestLoopBudgetPromptTokens(t *testing.T) {
res, err := Run(context.Background(), Config{
Model: "fake",
Budget: &Budget{MaxPromptTokens: 10},
Stream: usageScript(llm.Usage{PromptTokens: 500, TotalTokens: 600},
llm.Message{Role: llm.RoleAssistant, StopReason: llm.StopToolCalls, ToolCalls: []llm.ToolCall{{
ID: "c1", Name: "list_dir", Arguments: `{}`,
}}},
llm.Message{Role: llm.RoleAssistant, Content: "never", StopReason: llm.StopEnd},
),
}, llm.Message{Role: llm.RoleUser, Content: "go"})
if err != nil {
t.Fatal(err)
}
if res.Err == nil || !strings.Contains(res.Err.Error(), "prompt tokens") {
t.Fatalf("want prompt-token budget stop, got err=%v", res.Err)
}
if res.Usage.PromptTokens != 500 {
t.Fatalf("usage should be reported on budget stop, got %d", res.Usage.PromptTokens)
}
}
func TestLoopBudgetDeadline(t *testing.T) {
res, err := Run(context.Background(), Config{
Model: "fake",
Budget: &Budget{Deadline: time.Now().Add(-time.Second)},
Stream: usageScript(llm.Usage{}, llm.Message{Role: llm.RoleAssistant, Content: "never", StopReason: llm.StopEnd}),
}, llm.Message{Role: llm.RoleUser, Content: "go"})
if err != nil {
t.Fatal(err)
}
if res.Err == nil || !strings.Contains(res.Err.Error(), "deadline") {
t.Fatalf("want deadline budget stop, got err=%v", res.Err)
}
}
func TestLoopBudgetNotHitCompletesNormally(t *testing.T) {
res, err := Run(context.Background(), Config{
Model: "fake",
Budget: &Budget{MaxPromptTokens: 10_000, MaxToolCalls: 10},
Stream: usageScript(llm.Usage{PromptTokens: 50},
llm.Message{Role: llm.RoleAssistant, Content: "ok", StopReason: llm.StopEnd}),
}, llm.Message{Role: llm.RoleUser, Content: "go"})
if err != nil {
t.Fatal(err)
}
if res.Err != nil || res.Text != "ok" {
t.Fatalf("clean run should finish, got err=%v text=%q", res.Err, res.Text)
}
}
// blockingTool 阻塞到 ctx 取消,验证取消传播到工具执行层。
type blockingTool struct{ canceled chan struct{} }
func (b *blockingTool) Name() string { return "block_forever" }
func (b *blockingTool) Description() string { return "blocks until context cancel" }
func (b *blockingTool) Parameters() json.RawMessage {
return json.RawMessage(`{"type":"object","properties":{}}`)
}
func (b *blockingTool) Execute(ctx context.Context, args json.RawMessage) (tools.Result, error) {
<-ctx.Done()
close(b.canceled)
return tools.Result{Content: "canceled", IsError: true}, ctx.Err()
}
func TestLoopCancelPropagatesToTool(t *testing.T) {
bt := &blockingTool{canceled: make(chan struct{})}
reg := tools.NewRegistry(t.TempDir())
reg.Register(bt)
ctx, cancel := context.WithCancel(context.Background())
firstCall := true
stream := func(ctx context.Context, model string, messages []llm.Message, decls []llm.ToolDecl, opts llm.StreamOptions) <-chan llm.Event {
ch := make(chan llm.Event, 4)
go func() {
defer close(ch)
if firstCall {
firstCall = false
ch <- llm.Event{Kind: llm.KindMessageEnd, Message: llm.Message{
Role: llm.RoleAssistant, StopReason: llm.StopToolCalls,
ToolCalls: []llm.ToolCall{{ID: "c1", Name: "block_forever", Arguments: `{}`}},
}}
return
}
// 工具返回后的下一轮:等取消或超时兜底。
select {
case <-ctx.Done():
ch <- llm.Event{Kind: llm.KindError, Err: ctx.Err(), Message: llm.Message{StopReason: llm.StopAborted}}
case <-time.After(3 * time.Second):
ch <- llm.Event{Kind: llm.KindMessageEnd, Message: llm.Message{Role: llm.RoleAssistant, Content: "done", StopReason: llm.StopEnd}}
}
}()
return ch
}
go func() {
time.Sleep(100 * time.Millisecond)
cancel()
}()
res, err := Run(ctx, Config{Model: "fake", Tools: reg, Stream: stream},
llm.Message{Role: llm.RoleUser, Content: "block"})
if err != nil {
t.Fatal(err)
}
select {
case <-bt.canceled:
case <-time.After(2 * time.Second):
t.Fatal("tool context was not canceled")
}
if res.StopReason != llm.StopAborted && res.Err == nil {
t.Fatalf("expected aborted stop, got %+v", res)
}
}
+94
View File
@@ -0,0 +1,94 @@
package mcp
// 本文件是跨测试二进制复用的最小 MCP fake server(stdio JSON-RPC)。
// 测试以「自身可执行文件 + AGENT_NATIVE_TEST_MCP_STDIO=1」re-exec 方式拉起,
// 供真实传输链路测试使用;非测试代码不得调用。
import (
"bufio"
"encoding/json"
"os"
)
// RunFakeServer 在 stdin/stdout 上运行最小 MCP server(echo / boom / 未知方法),
// 直到 stdin 关闭。测试二进制在 TestMain 的 re-exec 分支调用。
func RunFakeServer() {
scanner := bufio.NewScanner(os.Stdin)
scanner.Buffer(make([]byte, 1<<20), 1<<20)
w := bufio.NewWriter(os.Stdout)
defer w.Flush()
for scanner.Scan() {
var req rpcRequest
if err := json.Unmarshal(scanner.Bytes(), &req); err != nil {
continue
}
if req.ID == 0 {
continue // 通知帧
}
resp := fakeServerHandle(req)
body, _ := json.Marshal(resp)
w.Write(body)
w.WriteByte('\n')
w.Flush()
}
}
func fakeServerHandle(req rpcRequest) rpcResponse {
respond := func(result any) rpcResponse {
raw, _ := json.Marshal(result)
return rpcResponse{JSONRPC: "2.0", ID: &req.ID, Result: raw}
}
fail := func(code int, msg string) rpcResponse {
return rpcResponse{JSONRPC: "2.0", ID: &req.ID, Error: &rpcError{Code: code, Message: msg}}
}
switch req.Method {
case "initialize":
return respond(initializeResult{
ProtocolVersion: ProtocolVersion,
ServerInfo: clientInfo{Name: "fake-mcp", Version: "0"},
})
case "tools/list":
return respond(toolsListResult{Tools: fakeServerTools()})
case "tools/call":
var p callToolParams
if req.Params != nil {
raw, _ := json.Marshal(req.Params)
_ = json.Unmarshal(raw, &p)
}
switch p.Name {
case "echo":
var args struct {
Text string `json:"text"`
}
_ = json.Unmarshal(p.Arguments, &args)
return respond(callToolResult{Content: []contentBlock{{Type: "text", Text: "echo: " + args.Text}}})
case "boom":
return respond(callToolResult{
Content: []contentBlock{{Type: "text", Text: "boom failed"}},
IsError: true,
})
default:
return fail(-32602, "unknown tool "+p.Name)
}
default:
return fail(-32601, "method not found: "+req.Method)
}
}
func fakeServerTools() []toolInfo {
return []toolInfo{
{
Name: "echo",
Description: "Echo the text back",
InputSchema: json.RawMessage(`{"type":"object","required":["text"],"properties":{"text":{"type":"string"}}}`),
},
{
Name: "boom",
Description: "Always fails",
InputSchema: json.RawMessage(`{"type":"object","properties":{}}`),
},
}
}
// FakeServerEnv 是拉起 fake server 的环境变量名。
const FakeServerEnv = "AGENT_NATIVE_TEST_MCP_STDIO"
+196
View File
@@ -0,0 +1,196 @@
package mcp
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"net/http"
"sync"
"sync/atomic"
"time"
)
// httpClient 走 MCP Streamable HTTP 传输:每个 JSON-RPC 请求一次 POST,
// 期待 application/json 的单帧响应(SSE 流式与 server 主动请求不在本客户端范围)。
// initialize 返回的 Mcp-Session-Id 会在后续请求回带。
type httpClient struct {
cfg ServerConfig
client *http.Client
sessionID string
mu sync.Mutex
nextID int64
}
// DialHTTP 建立 HTTP 客户端并完成 initialize 握手。
func DialHTTP(ctx context.Context, cfg ServerConfig) (*httpClient, error) {
if err := cfg.Validate(); err != nil {
return nil, err
}
if cfg.URL == "" {
return nil, fmt.Errorf("mcp server %q: http transport requires url", cfg.Name)
}
c := &httpClient{cfg: cfg, client: &http.Client{Timeout: requestTimeout(cfg)}}
if err := c.handshake(ctx); err != nil {
return nil, err
}
return c, nil
}
func requestTimeout(cfg ServerConfig) time.Duration {
if cfg.Timeout > 0 {
return cfg.Timeout
}
return 30 * time.Second
}
func (c *httpClient) handshake(ctx context.Context) error {
var res initializeResult
err := c.roundTrip(ctx, "initialize", initializeParams{
ProtocolVersion: ProtocolVersion,
ClientInfo: clientInfo{Name: "agent-native", Version: "1"},
}, &res)
return err
}
func (c *httpClient) Initialize(ctx context.Context) (initializeResult, error) {
var res initializeResult
err := c.roundTrip(ctx, "initialize", initializeParams{
ProtocolVersion: ProtocolVersion,
ClientInfo: clientInfo{Name: "agent-native", Version: "1"},
}, &res)
return res, err
}
func (c *httpClient) ListTools(ctx context.Context) ([]toolInfo, error) {
var out []toolInfo
cursor := ""
for {
params := map[string]any{}
if cursor != "" {
params["cursor"] = cursor
}
var res toolsListResult
if err := c.roundTrip(ctx, "tools/list", params, &res); err != nil {
return nil, err
}
out = append(out, res.Tools...)
if res.NextCursor == "" || len(out) > maxToolsPerServer*2 {
return out, nil
}
cursor = res.NextCursor
}
}
func (c *httpClient) CallTool(ctx context.Context, name string, args json.RawMessage) (callToolResult, error) {
var res callToolResult
if len(args) == 0 {
args = json.RawMessage(`{}`)
}
err := c.roundTrip(ctx, "tools/call", callToolParams{Name: name, Arguments: args}, &res)
return res, err
}
func (c *httpClient) Close() error { return nil }
func (c *httpClient) roundTrip(ctx context.Context, method string, params any, out any) error {
c.mu.Lock()
defer c.mu.Unlock()
id := atomic.AddInt64(&c.nextID, 1)
body, err := json.Marshal(rpcRequest{JSONRPC: "2.0", ID: id, Method: method, Params: params})
if err != nil {
return err
}
req, err := http.NewRequestWithContext(ctx, http.MethodPost, c.cfg.URL, bytes.NewReader(body))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Accept", "application/json, text/event-stream")
for k, v := range c.cfg.Headers {
req.Header.Set(k, v)
}
if c.sessionID != "" {
req.Header.Set("Mcp-Session-Id", c.sessionID)
}
resp, err := c.client.Do(req)
if err != nil {
return fmt.Errorf("mcp %s: %w", method, err)
}
defer resp.Body.Close()
if sid := resp.Header.Get("Mcp-Session-Id"); sid != "" {
c.sessionID = sid
}
if resp.StatusCode >= 400 {
snippet, _ := io.ReadAll(io.LimitReader(resp.Body, 2048))
return fmt.Errorf("mcp %s: http %d: %s", method, resp.StatusCode, string(snippet))
}
// Streamable HTTP 允许 SSE 回包:逐行扫 data: 帧,取第一个 JSON 对象。
var payload []byte
ct := resp.Header.Get("Content-Type")
if bytes.Contains([]byte(ct), []byte("text/event-stream")) {
payload, err = readSSEFrame(resp.Body)
} else {
payload, err = io.ReadAll(io.LimitReader(resp.Body, 8<<20))
}
if err != nil {
return fmt.Errorf("mcp %s: read body: %w", method, err)
}
var rpcResp rpcResponse
if err := json.Unmarshal(payload, &rpcResp); err != nil {
return fmt.Errorf("mcp %s: bad response frame: %w", method, err)
}
if rpcResp.ID == nil || *rpcResp.ID != id {
return fmt.Errorf("mcp %s: response id mismatch", method)
}
if rpcResp.Error != nil {
return rpcResp.Error
}
if out != nil && len(rpcResp.Result) > 0 {
return json.Unmarshal(rpcResp.Result, out)
}
return nil
}
// readSSEFrame 从 SSE 流读取首个 data: JSON 载荷(忽略事件注释行)。
func readSSEFrame(r io.Reader) ([]byte, error) {
buf := make([]byte, 0, 4096)
tmp := make([]byte, 2048)
for {
n, err := r.Read(tmp)
buf = append(buf, tmp[:n]...)
for _, line := range splitLines(buf) {
if bytes.HasPrefix(line, []byte("data:")) {
data := bytes.TrimSpace(line[len("data:"):])
if len(data) > 0 {
return data, nil
}
}
}
if err != nil {
if len(buf) == 0 || err == io.EOF {
return nil, fmt.Errorf("no data frame in sse response")
}
return nil, err
}
if len(buf) > 8<<20 {
return nil, fmt.Errorf("sse response too large")
}
}
}
func splitLines(b []byte) [][]byte {
var out [][]byte
start := 0
for i, c := range b {
if c == '\n' {
out = append(out, b[start:i])
start = i + 1
}
}
if start < len(b) {
out = append(out, b[start:])
}
return out
}
+171
View File
@@ -0,0 +1,171 @@
package mcp
import (
"context"
"encoding/json"
"fmt"
"strings"
"sync"
"time"
"agent-native/runtime/tools"
)
// 桥接上限:server 元数据是不可信输入,长度与数量都必须受限。
const (
maxToolsPerServer = 64
maxDescriptionBytes = 1024
maxTextResultBytes = 64 << 10
maxToolNameBytes = 128
callTimeoutDefault = 30 * time.Second
registerTimeoutFixed = 30 * time.Second
)
// Manager 维护一组 MCP server 连接,并把它们的工具注册进 tools.Registry。
// 零值不可用;由组合根显式构造并注入(未注入 = 无 MCP 工具,fail-closed)。
type Manager struct {
configs []ServerConfig
mu sync.Mutex
clients map[string]Client
}
func NewManager(configs []ServerConfig) (*Manager, error) {
seen := map[string]bool{}
for _, c := range configs {
if err := c.Validate(); err != nil {
return nil, err
}
if seen[c.Name] {
return nil, fmt.Errorf("mcp server %q configured twice", c.Name)
}
seen[c.Name] = true
}
return &Manager{configs: configs, clients: map[string]Client{}}, nil
}
// Configs 返回声明的 server 清单(只读副本)。
func (m *Manager) Configs() []ServerConfig {
out := make([]ServerConfig, len(m.configs))
copy(out, m.configs)
return out
}
func (m *Manager) client(ctx context.Context, cfg ServerConfig) (Client, error) {
m.mu.Lock()
defer m.mu.Unlock()
if c, ok := m.clients[cfg.Name]; ok {
return c, nil
}
dialCtx, cancel := context.WithTimeout(ctx, registerTimeoutFixed)
defer cancel()
var c Client
var err error
if cfg.Command != "" {
c, err = DialStdio(dialCtx, cfg)
} else {
c, err = DialHTTP(dialCtx, cfg)
}
if err != nil {
return nil, fmt.Errorf("mcp server %q unreachable (fail-closed): %w", cfg.Name, err)
}
m.clients[cfg.Name] = c
return c, nil
}
// RegisterInto 连接全部 server、枚举工具并以 mcp__<server>__<tool> 命名注册。
// 任一 server 不可达即返回错误(fail-closed,不静默跳过)。
func (m *Manager) RegisterInto(ctx context.Context, reg *tools.Registry) error {
for _, cfg := range m.configs {
c, err := m.client(ctx, cfg)
if err != nil {
return err
}
listCtx, cancel := context.WithTimeout(ctx, registerTimeoutFixed)
list, err := c.ListTools(listCtx)
cancel()
if err != nil {
return fmt.Errorf("mcp server %q tools/list failed: %w", cfg.Name, err)
}
if len(list) > maxToolsPerServer {
return fmt.Errorf("mcp server %q exposes %d tools (max %d)", cfg.Name, len(list), maxToolsPerServer)
}
for _, ti := range list {
name := ToolName(cfg.Name, ti.Name)
if len(name) > maxToolNameBytes {
return fmt.Errorf("mcp tool name too long: %s", name)
}
desc := ti.Description
if len(desc) > maxDescriptionBytes {
desc = desc[:maxDescriptionBytes] + "…[truncated]"
}
schema := ti.InputSchema
if len(schema) == 0 {
schema = json.RawMessage(`{"type":"object","properties":{}}`)
}
reg.Register(&bridgeTool{
client: c,
serverCfg: cfg,
toolName: ti.Name,
declName: name,
description: desc,
schema: schema,
})
}
}
return nil
}
// ToolName 生成桥接工具名(命名空间隔离)。
func ToolName(server, tool string) string {
return "mcp__" + server + "__" + tool
}
// Close 关闭全部连接(进程型 server 随之退出)。
func (m *Manager) Close() {
m.mu.Lock()
defer m.mu.Unlock()
for _, c := range m.clients {
_ = c.Close()
}
m.clients = map[string]Client{}
}
// bridgeTool 把一个 MCP 工具适配为 tools.Tool;调用失败重连一次后重试。
type bridgeTool struct {
client Client
serverCfg ServerConfig
toolName string
declName string
description string
schema json.RawMessage
}
func (t *bridgeTool) Name() string { return t.declName }
func (t *bridgeTool) Description() string { return t.description }
func (t *bridgeTool) Parameters() json.RawMessage {
return t.schema
}
func (t *bridgeTool) Execute(ctx context.Context, args json.RawMessage) (tools.Result, error) {
callCtx, cancel := context.WithTimeout(ctx, requestTimeout(t.serverCfg))
defer cancel()
res, err := t.client.CallTool(callCtx, t.toolName, args)
if err != nil {
return tools.Result{Content: fmt.Sprintf("mcp tool %s failed: %v", t.declName, err), IsError: true}, nil
}
var b strings.Builder
for _, blk := range res.Content {
if blk.Type == "text" && blk.Text != "" {
b.WriteString(blk.Text)
b.WriteString("\n")
}
}
out := b.String()
if len(out) > maxTextResultBytes {
out = out[:maxTextResultBytes] + "\n[truncated]"
}
if res.IsError {
return tools.Result{Content: out, IsError: true}, nil
}
return tools.Result{Content: out}, nil
}
+241
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package mcp
import (
"context"
"encoding/json"
"fmt"
"net/http"
"net/http/httptest"
"os"
"strings"
"testing"
"time"
"agent-native/runtime/tools"
)
// TestMain:环境变量置位时,本测试二进制化身为 stdio MCP server(真实子进程测试)。
func TestMain(m *testing.M) {
if os.Getenv(FakeServerEnv) == "1" {
RunFakeServer()
os.Exit(0)
}
os.Exit(m.Run())
}
func fakeStdioConfig(t *testing.T) ServerConfig {
t.Helper()
exe, err := os.Executable()
if err != nil {
t.Fatal(err)
}
return ServerConfig{
Name: "fake",
Command: exe,
Env: append(os.Environ(), FakeServerEnv+"=1"),
}
}
func TestStdioClientHandshakeListAndCall(t *testing.T) {
ctx := context.Background()
c, err := DialStdio(ctx, fakeStdioConfig(t))
if err != nil {
t.Fatal(err)
}
defer c.Close()
list, err := c.ListTools(ctx)
if err != nil || len(list) != 2 || list[0].Name != "echo" {
t.Fatalf("list failed: %v %+v", err, list)
}
res, err := c.CallTool(ctx, "echo", json.RawMessage(`{"text":"hi"}`))
if err != nil || len(res.Content) != 1 || res.Content[0].Text != "echo: hi" {
t.Fatalf("call failed: %v %+v", err, res)
}
_, err = c.CallTool(ctx, "no_such_tool", nil)
if err == nil || !strings.Contains(err.Error(), "unknown tool") {
t.Fatalf("unknown-tool call must fail via rpc error, got %v", err)
}
}
func TestStdioClientServerRejectsBadSchema(t *testing.T) {
ctx := context.Background()
c, err := DialStdio(ctx, fakeStdioConfig(t))
if err != nil {
t.Fatal(err)
}
defer c.Close()
// server 端 tool 报 isError:作为 callToolResult 返回而非 rpc 错误。
res, err := c.CallTool(ctx, "boom", nil)
if err != nil {
t.Fatal(err)
}
if !res.IsError || res.Content[0].Text != "boom failed" {
t.Fatalf("want isError result, got %+v", res)
}
}
func fakeHTTPHandler(w http.ResponseWriter, r *http.Request) {
var req rpcRequest
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
w.WriteHeader(400)
return
}
resp := fakeServerHandle(req)
if sid := r.Header.Get("Mcp-Session-Id"); sid != "" {
w.Header().Set("Mcp-Session-Id", sid)
} else {
w.Header().Set("Mcp-Session-Id", "sess-1")
}
w.Header().Set("Content-Type", "application/json")
_ = json.NewEncoder(w).Encode(resp)
}
func TestHTTPClientJSONMode(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(fakeHTTPHandler))
defer srv.Close()
ctx := context.Background()
c, err := DialHTTP(ctx, ServerConfig{Name: "fakehttp", URL: srv.URL})
if err != nil {
t.Fatal(err)
}
defer c.Close()
if c.sessionID != "sess-1" {
t.Fatalf("session id must be captured, got %q", c.sessionID)
}
list, err := c.ListTools(ctx)
if err != nil || len(list) != 2 {
t.Fatalf("list failed: %v %+v", err, list)
}
res, err := c.CallTool(ctx, "echo", json.RawMessage(`{"text":"net"}`))
if err != nil || res.Content[0].Text != "echo: net" {
t.Fatalf("call failed: %v %+v", err, res)
}
}
func TestHTTPClientSSEMode(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var req rpcRequest
_ = json.NewDecoder(r.Body).Decode(&req)
resp := fakeServerHandle(req)
w.Header().Set("Content-Type", "text/event-stream")
body, _ := json.Marshal(resp)
fmt.Fprintf(w, "event: message\ndata: %s\n\n", body)
}))
defer srv.Close()
ctx := context.Background()
c, err := DialHTTP(ctx, ServerConfig{Name: "fakesse", URL: srv.URL})
if err != nil {
t.Fatal(err)
}
defer c.Close()
list, err := c.ListTools(ctx)
if err != nil || len(list) != 2 {
t.Fatalf("sse list failed: %v %+v", err, list)
}
}
func TestManagerRegisterIntoAndCallThroughRegistry(t *testing.T) {
mgr, err := NewManager([]ServerConfig{fakeStdioConfig(t)})
if err != nil {
t.Fatal(err)
}
defer mgr.Close()
reg := tools.NewRegistry(t.TempDir())
if err := mgr.RegisterInto(context.Background(), reg); err != nil {
t.Fatal(err)
}
var names []string
for _, d := range reg.Decls() {
names = append(names, d.Name)
}
joined := strings.Join(names, ",")
if !strings.Contains(joined, "mcp__fake__echo") || !strings.Contains(joined, "mcp__fake__boom") {
t.Fatalf("mcp tools not registered: %v", names)
}
res := reg.Execute(context.Background(), "mcp__fake__echo", json.RawMessage(`{"text":"bridge"}`))
if res.IsError || res.Content != "echo: bridge\n" {
t.Fatalf("bridge call failed: %+v", res)
}
res = reg.Execute(context.Background(), "mcp__fake__boom", nil)
if !res.IsError || !strings.Contains(res.Content, "boom failed") {
t.Fatalf("bridge error propagation failed: %+v", res)
}
}
func TestManagerNamespaceWildcardRestrict(t *testing.T) {
mgr, _ := NewManager([]ServerConfig{fakeStdioConfig(t)})
defer mgr.Close()
reg := tools.WorkspaceTools(t.TempDir())
if err := mgr.RegisterInto(context.Background(), reg); err != nil {
t.Fatal(err)
}
if err := reg.Restrict([]string{"mcp__fake__*"}); err != nil {
t.Fatal(err)
}
for _, d := range reg.Decls() {
if !strings.HasPrefix(d.Name, "mcp__fake__") {
t.Fatalf("wildcard restrict must keep only mcp namespace, got %s", d.Name)
}
}
// 通配未命中任何工具 → fail-closed。
err := reg.Restrict([]string{"mcp__nope__*"})
if err == nil || !strings.Contains(err.Error(), "mcp__nope__*") {
t.Fatalf("unknown namespace wildcard must fail-closed, got %v", err)
}
}
func TestManagerFailClosedOnUnreachableServer(t *testing.T) {
mgr, err := NewManager([]ServerConfig{{Name: "dead", Command: "/nonexistent/mcp-server-bin"}})
if err != nil {
t.Fatal(err)
}
defer mgr.Close()
reg := tools.NewRegistry(t.TempDir())
err = mgr.RegisterInto(context.Background(), reg)
if err == nil || !strings.Contains(err.Error(), "unreachable") {
t.Fatalf("unreachable server must fail-closed, got %v", err)
}
}
func TestManagerConfigValidation(t *testing.T) {
if _, err := NewManager([]ServerConfig{{Name: "bad name", Command: "x"}}); err == nil {
t.Fatal("invalid name must be rejected")
}
if _, err := NewManager([]ServerConfig{{Name: "both", Command: "x", URL: "http://y"}}); err == nil {
t.Fatal("dual transport must be rejected")
}
if _, err := NewManager([]ServerConfig{{Name: "none"}}); err == nil {
t.Fatal("missing transport must be rejected")
}
_, err := NewManager([]ServerConfig{{Name: "a", Command: "x"}, {Name: "a", URL: "http://y"}})
if err == nil || !strings.Contains(err.Error(), "twice") {
t.Fatal("duplicate names must be rejected")
}
}
func TestManagerRegisterTimeoutBounded(t *testing.T) {
// server 挂起不响应:initialize 必须在超时内 fail-closed,而不是永久阻塞。
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
select {
case <-r.Context().Done():
case <-time.After(10 * time.Second):
}
}))
defer srv.Close()
mgr, err := NewManager([]ServerConfig{{Name: "slow", URL: srv.URL, Timeout: 300 * time.Millisecond}})
if err != nil {
t.Fatal(err)
}
defer mgr.Close()
reg := tools.NewRegistry(t.TempDir())
start := time.Now()
err = mgr.RegisterInto(context.Background(), reg)
elapsed := time.Since(start)
if err == nil || !strings.Contains(err.Error(), "unreachable") {
t.Fatalf("hung server must fail-closed, got %v", err)
}
if elapsed > 5*time.Second {
t.Fatalf("timeout must bound the dial, took %s", elapsed)
}
}
+140
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// Package mcp 实现 Model Context Protocol 客户端(stdio 与 Streamable HTTP
// 两种传输),并把 server 工具桥接为 runtime/tools.Registry 的普通工具。
//
// 边界声明:server 提供的描述与 schema 视为不可信输入(长度受限、不解释);
// 工具调用的策略(allowlist/确认)仍由 tools.Registry 策略层统一执行。
package mcp
import (
"context"
"encoding/json"
"fmt"
"time"
)
// ProtocolVersion 是本客户端声明的 MCP 协议版本。
const ProtocolVersion = "2024-11-05"
// ServerConfig 声明一个 MCP server 接入点:Command(stdio)或 URL(HTTP)二选一。
type ServerConfig struct {
Name string `json:"name"`
Command string `json:"command,omitempty"`
Args []string `json:"args,omitempty"`
Env []string `json:"env,omitempty"`
URL string `json:"url,omitempty"`
Headers map[string]string `json:"headers,omitempty"`
// Timeout 单次请求上限(默认 30s)。
Timeout time.Duration `json:"timeout,omitempty"`
}
// Validate 校验配置完整性(fail-closed:命名不规范或双传输/无传输都拒绝)。
func (c ServerConfig) Validate() error {
if !validName(c.Name) {
return fmt.Errorf("mcp server name %q must be [a-zA-Z0-9_-]+", c.Name)
}
hasCmd := c.Command != ""
hasURL := c.URL != ""
if hasCmd == hasURL {
return fmt.Errorf("mcp server %q: exactly one of command or url is required", c.Name)
}
return nil
}
func validName(s string) bool {
if s == "" {
return false
}
for _, r := range s {
switch {
case r >= 'a' && r <= 'z', r >= 'A' && r <= 'Z', r >= '0' && r <= '9', r == '-', r == '_':
default:
return false
}
}
return true
}
// ---- JSON-RPC 2.0 envelope ----
type rpcRequest struct {
JSONRPC string `json:"jsonrpc"`
ID int64 `json:"id,omitempty"`
Method string `json:"method"`
Params any `json:"params,omitempty"`
}
type rpcNotification struct {
JSONRPC string `json:"jsonrpc"`
Method string `json:"method"`
}
type rpcResponse struct {
JSONRPC string `json:"jsonrpc"`
ID *int64 `json:"id"`
Result json.RawMessage `json:"result,omitempty"`
Error *rpcError `json:"error,omitempty"`
}
type rpcError struct {
Code int `json:"code"`
Message string `json:"message"`
Data json.RawMessage `json:"data,omitempty"`
}
func (e *rpcError) Error() string {
return fmt.Sprintf("mcp rpc error %d: %s", e.Code, e.Message)
}
// ---- MCP 语义类型 ----
type initializeParams struct {
ProtocolVersion string `json:"protocolVersion"`
Capabilities json.RawMessage `json:"capabilities,omitempty"`
ClientInfo clientInfo `json:"clientInfo"`
}
type clientInfo struct {
Name string `json:"name"`
Version string `json:"version"`
}
type initializeResult struct {
ProtocolVersion string `json:"protocolVersion"`
Capabilities json.RawMessage `json:"capabilities"`
ServerInfo clientInfo `json:"serverInfo"`
Instructions string `json:"instructions,omitempty"`
}
type toolInfo struct {
Name string `json:"name"`
Description string `json:"description,omitempty"`
InputSchema json.RawMessage `json:"inputSchema,omitempty"`
}
type toolsListResult struct {
Tools []toolInfo `json:"tools"`
NextCursor string `json:"nextCursor,omitempty"`
}
type callToolParams struct {
Name string `json:"name"`
Arguments json.RawMessage `json:"arguments,omitempty"`
}
type callToolResult struct {
Content []contentBlock `json:"content"`
IsError bool `json:"isError,omitempty"`
}
type contentBlock struct {
Type string `json:"type"`
Text string `json:"text,omitempty"`
}
// Client 是一个已连接 MCP server 的最小面(initialize / tools/list / tools/call)。
type Client interface {
Initialize(ctx context.Context) (initializeResult, error)
ListTools(ctx context.Context) ([]toolInfo, error)
CallTool(ctx context.Context, name string, args json.RawMessage) (callToolResult, error)
Close() error
}
+198
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package mcp
import (
"bufio"
"context"
"encoding/json"
"fmt"
"io"
"os/exec"
"sync"
"sync/atomic"
)
// stdioClient 通过「子进程 stdin/stdout 按行分隔的 JSON-RPC」与 server 通信。
// 同一时刻只允许一个在途请求(串行锁),匹配简单且足以支撑智能体工具调用。
type stdioClient struct {
cmd *exec.Cmd
stdin io.WriteCloser
stdout *bufio.Reader
mu sync.Mutex
nextID int64
closed bool
}
// DialStdio 启动 server 子进程并完成 initialize 握手。
func DialStdio(ctx context.Context, cfg ServerConfig) (*stdioClient, error) {
if err := cfg.Validate(); err != nil {
return nil, err
}
if cfg.Command == "" {
return nil, fmt.Errorf("mcp server %q: stdio transport requires command", cfg.Name)
}
cmd := exec.Command(cfg.Command, cfg.Args...)
cmd.Env = cfg.Env
stdin, err := cmd.StdinPipe()
if err != nil {
return nil, err
}
stdout, err := cmd.StdoutPipe()
if err != nil {
return nil, err
}
if err := cmd.Start(); err != nil {
return nil, fmt.Errorf("mcp server %q: start %s: %w", cfg.Name, cfg.Command, err)
}
c := &stdioClient{cmd: cmd, stdin: stdin, stdout: bufio.NewReaderSize(stdout, 1<<20)}
if err := c.handshake(ctx); err != nil {
_ = c.Close()
return nil, err
}
return c, nil
}
func (c *stdioClient) handshake(ctx context.Context) error {
var res initializeResult
if err := c.roundTrip(ctx, "initialize", initializeParams{
ProtocolVersion: ProtocolVersion,
ClientInfo: clientInfo{Name: "agent-native", Version: "1"},
}, &res); err != nil {
return err
}
// initialized 通知无需响应。
return c.notify("notifications/initialized")
}
func (c *stdioClient) Initialize(ctx context.Context) (initializeResult, error) {
// Initialize 已在 Dial 时完成;这里补一次协议层调用以支持探测场景。
var res initializeResult
err := c.roundTrip(ctx, "initialize", initializeParams{
ProtocolVersion: ProtocolVersion,
ClientInfo: clientInfo{Name: "agent-native", Version: "1"},
}, &res)
return res, err
}
func (c *stdioClient) ListTools(ctx context.Context) ([]toolInfo, error) {
var out []toolInfo
cursor := ""
for {
params := map[string]any{}
if cursor != "" {
params["cursor"] = cursor
}
var res toolsListResult
if err := c.roundTrip(ctx, "tools/list", params, &res); err != nil {
return nil, err
}
out = append(out, res.Tools...)
if res.NextCursor == "" || len(out) > maxToolsPerServer*2 {
return out, nil
}
cursor = res.NextCursor
}
}
func (c *stdioClient) CallTool(ctx context.Context, name string, args json.RawMessage) (callToolResult, error) {
var res callToolResult
if len(args) == 0 {
args = json.RawMessage(`{}`)
}
err := c.roundTrip(ctx, "tools/call", callToolParams{Name: name, Arguments: args}, &res)
return res, err
}
func (c *stdioClient) Close() error {
c.mu.Lock()
defer c.mu.Unlock()
if c.closed {
return nil
}
c.closed = true
_ = c.stdin.Close()
if c.cmd.Process != nil {
_ = c.cmd.Process.Kill()
}
return c.cmd.Wait()
}
func (c *stdioClient) roundTrip(ctx context.Context, method string, params any, out any) error {
c.mu.Lock()
defer c.mu.Unlock()
if c.closed {
return fmt.Errorf("mcp client closed")
}
id := atomic.AddInt64(&c.nextID, 1)
req := rpcRequest{JSONRPC: "2.0", ID: id, Method: method, Params: params}
body, err := json.Marshal(req)
if err != nil {
return err
}
body = append(body, '\n')
if _, err := c.stdin.Write(body); err != nil {
return fmt.Errorf("mcp write %s: %w", method, err)
}
line, err := c.readResponseLine(ctx)
if err != nil {
return fmt.Errorf("mcp read %s: %w", method, err)
}
var resp rpcResponse
if err := json.Unmarshal(line, &resp); err != nil {
return fmt.Errorf("mcp %s: bad response frame: %w", method, err)
}
if resp.ID == nil || *resp.ID != id {
return fmt.Errorf("mcp %s: response id mismatch", method)
}
if resp.Error != nil {
return resp.Error
}
if out != nil && len(resp.Result) > 0 {
return json.Unmarshal(resp.Result, out)
}
return nil
}
// readResponseLine 逐行读取,跳过通知帧(无 id),带 ctx 取消感知。
func (c *stdioClient) readResponseLine(ctx context.Context) ([]byte, error) {
type result struct {
line []byte
err error
}
done := make(chan result, 1)
go func() {
for {
line, err := c.stdout.ReadBytes('\n')
if err != nil {
done <- result{nil, err}
return
}
var probe rpcResponse
if json.Unmarshal(line, &probe) == nil && probe.ID != nil {
done <- result{line, nil}
return
}
// 通知或日志行:忽略。
}
}()
select {
case r := <-done:
return r.line, r.err
case <-ctx.Done():
return nil, ctx.Err()
}
}
func (c *stdioClient) notify(method string) error {
c.mu.Lock()
defer c.mu.Unlock()
if c.closed {
return fmt.Errorf("mcp client closed")
}
body, err := json.Marshal(rpcNotification{JSONRPC: "2.0", Method: method})
if err != nil {
return err
}
body = append(body, '\n')
_, err = c.stdin.Write(body)
return err
}
+106
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// Package promptx 组装执行内核的系统提示。
//
// 职责边界(要求与实现分离):人格/角色内容由上层(产品提示词库、角色
// Instructions)提供并经 Parts.Instructions 传入;本包只做结构化装配——
// 环境事实、技能索引、交付物与档位约束、护栏段。工具清单仍由 runtime
// 循环在系统提示之后追加,不在本包。
package promptx
import (
"sort"
"strings"
"time"
)
// EnvFacts 是注入系统提示的环境事实(由适配层填写,测试可固定)。
type EnvFacts struct {
Date string // 如 2026-10-01(周一)
Model string
WorkspaceRoot string
Profile string // workspace | reasoning
}
// IndexEntry 是技能索引行。
type IndexEntry struct {
Name string
Description string
}
// Parts 是一次执行的装配输入。
type Parts struct {
Instructions string
// SkillsDeclared 是本次执行显式要求的技能名(角色声明)。
SkillsDeclared []string
// SkillsIndex 是可用技能索引(渐进披露:只列名与描述)。
SkillsIndex []IndexEntry
Deliverables []string
Env EnvFacts
}
// Compose 产出系统提示正文。
func Compose(p Parts) string {
var b strings.Builder
if strings.TrimSpace(p.Instructions) != "" {
b.WriteString(strings.TrimSpace(p.Instructions))
b.WriteString("\n\n")
}
// 环境事实块。
env := p.Env
if env.Date == "" && env.Model == "" && env.WorkspaceRoot == "" {
env.Date = time.Now().Format("2006-01-02")
}
var envLines []string
if env.Date != "" {
envLines = append(envLines, "date: "+env.Date)
}
if env.Model != "" {
envLines = append(envLines, "model: "+env.Model)
}
if env.WorkspaceRoot != "" {
envLines = append(envLines, "workspace: "+env.WorkspaceRoot)
}
if env.Profile != "" {
envLines = append(envLines, "tool profile: "+env.Profile)
}
if len(envLines) > 0 {
b.WriteString("## Environment\n")
b.WriteString(strings.Join(envLines, "\n"))
b.WriteString("\n\n")
}
// 技能块:声明优先 + 全量索引 + 按需加载指引。
if len(p.SkillsDeclared) > 0 || len(p.SkillsIndex) > 0 {
b.WriteString("## Skills\n")
if len(p.SkillsDeclared) > 0 {
b.WriteString("Declared for this task (load with load_skill before relying on them): ")
b.WriteString(strings.Join(p.SkillsDeclared, ", "))
b.WriteString("\n")
}
if len(p.SkillsIndex) > 0 {
entries := make([]IndexEntry, len(p.SkillsIndex))
copy(entries, p.SkillsIndex)
sort.Slice(entries, func(i, j int) bool { return entries[i].Name < entries[j].Name })
b.WriteString("Available skills (name — description; use load_skill for full instructions):\n")
for _, e := range entries {
line := "- " + e.Name
if e.Description != "" {
line += " — " + e.Description
}
b.WriteString(line + "\n")
}
}
b.WriteString("\n")
}
// 交付物与档位约束(保持既有语义原文,行为兼容)。
b.WriteString("Deliverable files: ")
b.WriteString(strings.Join(p.Deliverables, ", "))
b.WriteString(".")
if p.Env.Profile == "reasoning" {
b.WriteString(" Reply with the deliverable text only. Tools are disabled.")
} else {
b.WriteString(" Use workspace tools to write those files. Do not invent paths outside the workspace.")
}
return strings.TrimSpace(b.String())
}
+62
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@@ -0,0 +1,62 @@
package promptx
import (
"strings"
"testing"
)
func TestComposeSections(t *testing.T) {
out := Compose(Parts{
Instructions: "你是审校员",
SkillsDeclared: []string{"docx-author"},
SkillsIndex: []IndexEntry{
{Name: "xlsx-author", Description: "表格交付"},
{Name: "docx-author", Description: "文档交付"},
},
Deliverables: []string{"output.md"},
Env: EnvFacts{Date: "2026-10-01(周四)", Model: "m1", WorkspaceRoot: "/w", Profile: "workspace"},
})
for _, want := range []string{
"你是审校员",
"## Environment",
"date: 2026-10-01(周四)",
"model: m1",
"workspace: /w",
"tool profile: workspace",
"## Skills",
"Declared for this task",
"docx-author",
"- docx-author — 文档交付", // 索引按名排序
"- xlsx-author — 表格交付",
"Deliverable files: output.md.",
"Use workspace tools to write those files.",
} {
if !strings.Contains(out, want) {
t.Errorf("missing %q in composed prompt:\n%s", want, out)
}
}
// 排序断言:docx 行在 xlsx 行之前。
if strings.Index(out, "- docx-author") > strings.Index(out, "- xlsx-author") {
t.Errorf("index must be sorted by name:\n%s", out)
}
}
func TestComposeReasoningProfileAndMinimal(t *testing.T) {
out := Compose(Parts{Deliverables: []string{"out.md"}, Env: EnvFacts{Profile: "reasoning"}})
if !strings.Contains(out, "Reply with the deliverable text only. Tools are disabled.") {
t.Fatalf("reasoning sentence missing:\n%s", out)
}
if strings.Contains(out, "## Environment") && !strings.Contains(out, "date:") {
t.Fatalf("unexpected env block:\n%s", out)
}
if strings.Contains(out, "## Skills") {
t.Fatalf("no skills should render no skill block:\n%s", out)
}
}
func TestComposeEnvDefaultsToDate(t *testing.T) {
out := Compose(Parts{Deliverables: []string{"o.md"}})
if !strings.Contains(out, "date: ") {
t.Fatalf("env should default to today's date:\n%s", out)
}
}
+138
View File
@@ -0,0 +1,138 @@
package session
import (
"bufio"
"encoding/json"
"os"
"agent-native/runtime/llm"
)
// Stats 是转录文件的轻量元数据(扫描即得,无副作用)。
type Stats struct {
Lines int
Bytes int64
}
// Stats 统计当前转录行数与字节数(空行不计)。
func (s *Store) Stats() Stats {
s.mu.Lock()
defer s.mu.Unlock()
st := Stats{}
f, err := os.Open(s.path)
if err != nil {
return st
}
defer f.Close()
sc := bufio.NewScanner(f)
sc.Buffer(make([]byte, 0, 64*1024), 8*1024*1024)
for sc.Scan() {
if len(sc.Bytes()) == 0 {
continue
}
st.Lines++
}
if info, err := f.Stat(); err == nil {
st.Bytes = info.Size()
}
return st
}
// SaveMeta 把会话元数据写进 <path>.meta.json(创建时间/模型等由调用方定义)。
func (s *Store) SaveMeta(meta map[string]string) error {
s.mu.Lock()
defer s.mu.Unlock()
raw, err := json.MarshalIndent(meta, "", " ")
if err != nil {
return err
}
tmp := s.path + ".meta.json.tmp"
if err := os.WriteFile(tmp, raw, 0o644); err != nil {
return err
}
return os.Rename(tmp, s.path+".meta.json")
}
// ReadMeta 读取会话元数据;不存在时返回 nil(新会话)。
func (s *Store) ReadMeta() map[string]string {
raw, err := os.ReadFile(s.path + ".meta.json")
if err != nil {
return nil
}
var meta map[string]string
if err := json.Unmarshal(raw, &meta); err != nil {
return nil
}
return meta
}
// Compact 把转录改写为「系统消息 + 摘要消息 + 最近 keepLastN 条」。
// 摘要由 summarize 生成(由适配层注入,通常是一次无工具模型调用);
// 改写原子落盘(临时文件 + rename)。
// 返回是否发生了压缩(消息数不足/已是紧凑形态时返回 false 且不动文件)。
func (s *Store) Compact(keepLastN int, summarize func(messages []llm.Message) (string, error)) (bool, error) {
messages, err := s.Load()
if err != nil {
return false, err
}
if len(messages) <= keepLastN+1 { // 系统消息 + 尾部,无可压缩头部
return false, nil
}
var system *llm.Message
rest := messages
if len(rest) > 0 && rest[0].Role == llm.RoleSystem {
copyOf := rest[0]
system = &copyOf
rest = rest[1:]
}
tailStart := len(rest) - keepLastN
if tailStart <= 0 {
return false, nil
}
head := rest[:tailStart]
tail := rest[tailStart:]
summary, err := summarize(head)
if err != nil {
return false, err
}
summaryMsg := llm.Message{
Role: llm.RoleUser,
Content: "[conversation summary]\n" + summary + "\n[recent messages follow]",
}
var rebuilt []llm.Message
if system != nil {
rebuilt = append(rebuilt, *system)
}
rebuilt = append(rebuilt, summaryMsg)
rebuilt = append(rebuilt, tail...)
s.mu.Lock()
defer s.mu.Unlock()
tmp := s.path + ".compact.tmp"
f, err := os.OpenFile(tmp, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0o644)
if err != nil {
return false, err
}
w := bufio.NewWriter(f)
for _, m := range rebuilt {
raw, err := json.Marshal(m)
if err != nil {
_ = f.Close()
_ = os.Remove(tmp)
return false, err
}
w.Write(raw)
w.WriteByte('\n')
}
if err := w.Flush(); err != nil {
_ = f.Close()
_ = os.Remove(tmp)
return false, err
}
_ = f.Close()
if err := os.Rename(tmp, s.path); err != nil {
_ = os.Remove(tmp)
return false, err
}
return true, nil
}
+159
View File
@@ -0,0 +1,159 @@
package session
import (
"os"
"path/filepath"
"strings"
"testing"
"agent-native/runtime/llm"
)
func appendMsgs(t *testing.T, s *Store, msgs ...llm.Message) {
t.Helper()
for _, m := range msgs {
if err := s.Append(m); err != nil {
t.Fatal(err)
}
}
}
func TestLoadSkipsCrashResidueTail(t *testing.T) {
dir := t.TempDir()
s, err := Open(filepath.Join(dir, "t.jsonl"))
if err != nil {
t.Fatal(err)
}
appendMsgs(t, s,
llm.Message{Role: llm.RoleSystem, Content: "sys"},
llm.Message{Role: llm.RoleUser, Content: "hi"},
)
// 模拟崩溃半行:无换行结尾的残缺 JSON。
f, _ := os.OpenFile(s.Path(), os.O_APPEND|os.O_WRONLY, 0o644)
_, _ = f.WriteString(`{"role":"assistant","content":"trunca`)
_ = f.Close()
msgs, err := s.Load()
if err != nil {
t.Fatalf("crash residue must not poison the session: %v", err)
}
if len(msgs) != 2 || msgs[0].Role != llm.RoleSystem || msgs[1].Content != "hi" {
t.Fatalf("want sys+hi, got %+v", msgs)
}
}
func TestLoadStillFailsOnMidFileCorruption(t *testing.T) {
dir := t.TempDir()
path := filepath.Join(dir, "t.jsonl")
if err := os.WriteFile(path, []byte("{\"bad json}\n{\"role\":\"user\",\"content\":\"ok\"}\n"), 0o644); err != nil {
t.Fatal(err)
}
s := &Store{path: path}
if _, err := s.Load(); err == nil {
t.Fatal("mid-file corruption must still error")
}
}
func TestStatsAndMeta(t *testing.T) {
dir := t.TempDir()
s, _ := Open(filepath.Join(dir, "t.jsonl"))
appendMsgs(t, s,
llm.Message{Role: llm.RoleSystem, Content: "sys"},
llm.Message{Role: llm.RoleUser, Content: "q"},
)
st := s.Stats()
if st.Lines != 2 || st.Bytes <= 0 {
t.Fatalf("stats wrong: %+v", st)
}
if err := s.SaveMeta(map[string]string{"model": "m1"}); err != nil {
t.Fatal(err)
}
meta := s.ReadMeta()
if meta == nil || meta["model"] != "m1" {
t.Fatalf("meta roundtrip failed: %v", meta)
}
if other := (&Store{path: filepath.Join(dir, "missing.jsonl")}).ReadMeta(); other != nil {
t.Fatalf("missing meta must return nil, got %v", other)
}
}
func TestCompactRewritesTranscript(t *testing.T) {
dir := t.TempDir()
s, _ := Open(filepath.Join(dir, "t.jsonl"))
appendMsgs(t, s, llm.Message{Role: llm.RoleSystem, Content: "sys"})
for i := 0; i < 10; i++ {
appendMsgs(t, s,
llm.Message{Role: llm.RoleUser, Content: "early" + string(rune('a'+i))},
llm.Message{Role: llm.RoleAssistant, Content: "reply"},
)
}
var seenHead []llm.Message
done, err := s.Compact(3, func(messages []llm.Message) (string, error) {
seenHead = messages
return "这是摘要", nil
})
if err != nil || !done {
t.Fatalf("compact failed: %v done=%v", err, done)
}
if len(seenHead) != 17 { // 20 - system - 3 tail
t.Fatalf("summarizer should receive 17 head messages, got %d", len(seenHead))
}
msgs, err := s.Load()
if err != nil {
t.Fatal(err)
}
if len(msgs) != 5 { // system + summary + 3 tail
t.Fatalf("want 5 messages after compact, got %d", len(msgs))
}
if msgs[0].Role != llm.RoleSystem {
t.Fatal("system message must be preserved")
}
if !strings.Contains(msgs[1].Content, "[conversation summary]") || !strings.Contains(msgs[1].Content, "这是摘要") {
t.Fatalf("summary message wrong: %+v", msgs[1])
}
if msgs[2].Content != "reply" || msgs[3].Content != "earlyj" || msgs[4].Content != "reply" {
t.Fatalf("tail order wrong: %+v", msgs[2:])
}
// 无 tmp 残留。
if _, err := os.Stat(s.Path() + ".compact.tmp"); !os.IsNotExist(err) {
t.Fatal("compact tmp file must not remain")
}
}
func TestCompactNoopWhenShort(t *testing.T) {
dir := t.TempDir()
s, _ := Open(filepath.Join(dir, "t.jsonl"))
appendMsgs(t, s,
llm.Message{Role: llm.RoleSystem, Content: "sys"},
llm.Message{Role: llm.RoleUser, Content: "q"},
)
done, err := s.Compact(8, func([]llm.Message) (string, error) { return "x", nil })
if err != nil || done {
t.Fatalf("short transcript must be a no-op: %v %v", done, err)
}
msgs, _ := s.Load()
if len(msgs) != 2 {
t.Fatal("no-op compact must not touch the file")
}
}
func TestCompactSummarizerErrorAborts(t *testing.T) {
dir := t.TempDir()
s, _ := Open(filepath.Join(dir, "t.jsonl"))
appendMsgs(t, s, llm.Message{Role: llm.RoleSystem, Content: "sys"})
for i := 0; i < 6; i++ {
appendMsgs(t, s, llm.Message{Role: llm.RoleUser, Content: "m"})
}
done, err := s.Compact(2, func([]llm.Message) (string, error) { return "", errStringT("boom") })
if err == nil || done {
t.Fatal("summarizer error must abort compaction")
}
msgs, _ := s.Load()
if len(msgs) != 7 {
t.Fatal("failed compaction must leave the transcript untouched")
}
}
type errStringT string
func (e errStringT) Error() string { return string(e) }
+16 -3
View File
@@ -5,6 +5,7 @@ import (
"encoding/json"
"os"
"path/filepath"
"strings"
"sync"
"agent-native/runtime/llm"
@@ -47,16 +48,28 @@ func (s *Store) Append(msg llm.Message) error {
return err
}
// Load 全量读取转录。崩溃残留容错:Append 恒以换行收尾,因此无换行结尾的
// 尾部若不是完整 JSON 即为崩溃半行,丢弃而不是让整个会话不可用;
// 行中间的坏行仍报错(那是文件损坏,不是崩溃残留)。
func (s *Store) Load() ([]llm.Message, error) {
s.mu.Lock()
defer s.mu.Unlock()
f, err := os.Open(s.path)
raw, err := os.ReadFile(s.path)
if err != nil {
return nil, err
}
defer f.Close()
text := string(raw)
if text != "" && !strings.HasSuffix(text, "\n") {
if idx := strings.LastIndexByte(text, '\n'); idx >= 0 {
if !json.Valid([]byte(text[idx+1:])) {
text = text[:idx+1]
}
} else if !json.Valid([]byte(text)) {
text = ""
}
}
var out []llm.Message
sc := bufio.NewScanner(f)
sc := bufio.NewScanner(strings.NewReader(text))
sc.Buffer(make([]byte, 0, 64*1024), 8*1024*1024)
for sc.Scan() {
line := sc.Bytes()
+192
View File
@@ -0,0 +1,192 @@
// Package skills 实现 SKILL.md 技能的加载与按需展开。
//
// 目录约定:<root>/<skill-name>/SKILL.md,正文前可选 frontmatter
//(--- 包围,行前缀 description:,不引入 YAML 依赖)。
// 目录名是技能名的权威来源(避免目录与 frontmatter 漂移)。
//
// 信任边界:技能正文进入模型上下文,属提示注入面——只加载组合根显式
// 配置的根目录与工作区 .agent/skills/;正文与索引总量受限。
package skills
import (
"context"
"encoding/json"
"fmt"
"os"
"path/filepath"
"strings"
"agent-native/runtime/tools"
)
const (
maxSkillsPerRoot = 100
maxBodyBytes = 64 << 10
maxDescription = 200
)
// Skill 是一个可加载技能。
type Skill struct {
Name string
Description string
Body string
Source string
}
// Store 扫描若干根目录并按名加载技能。
type Store struct {
roots []string
cache map[string]Skill
}
func NewStore(roots ...string) *Store {
clean := make([]string, 0, len(roots))
for _, r := range roots {
if strings.TrimSpace(r) != "" {
clean = append(clean, r)
}
}
return &Store{roots: clean, cache: nil}
}
// Roots 返回配置的根目录(只读副本)。
func (s *Store) Roots() []string {
out := make([]string, len(s.roots))
copy(out, s.roots)
return out
}
// List 扫描全部根目录(同名技能先配置者优先),返回索引。
func (s *Store) List() []Skill {
cache := map[string]Skill{}
var out []Skill
for _, root := range s.roots {
entries, err := os.ReadDir(root)
if err != nil {
continue // 根不存在:跳过(技能是可选能力)
}
count := 0
for _, e := range entries {
if !e.IsDir() || count >= maxSkillsPerRoot {
continue
}
path := filepath.Join(root, e.Name(), "SKILL.md")
data, err := os.ReadFile(path)
if err != nil {
continue
}
skill, err := parse(e.Name(), path, data)
if err != nil {
continue // 单个坏技能跳过,不拖垮整个索引
}
if _, dup := cache[skill.Name]; dup {
continue
}
cache[skill.Name] = skill
out = append(out, skill)
count++
}
}
s.cache = cache
return out
}
// Load 按名加载技能正文(fail-closed:未知名返回错误,不猜测近似名)。
func (s *Store) Load(name string) (Skill, error) {
if s.cache == nil {
s.List()
}
if skill, ok := s.cache[name]; ok {
return skill, nil
}
// 缓存可能过期(List 之后目录变化):重扫一遍再判。
s.List()
if skill, ok := s.cache[name]; ok {
return skill, nil
}
return Skill{}, fmt.Errorf("unknown skill %q (not installed in any configured root)", name)
}
// parse 解析一份 SKILL.md:目录名权威,frontmatter 可选。
func parse(dirName, path string, data []byte) (Skill, error) {
if !validSkillName(dirName) {
return Skill{}, fmt.Errorf("invalid skill dir name %q", dirName)
}
if len(data) > maxBodyBytes {
data = data[:maxBodyBytes]
}
text := string(data)
desc := ""
body := text
lines := strings.Split(text, "\n")
if len(lines) > 0 && strings.TrimSpace(lines[0]) == "---" {
end := -1
for i := 1; i < len(lines); i++ {
if strings.TrimSpace(lines[i]) == "---" {
end = i
break
}
}
if end > 0 {
for _, line := range lines[1:end] {
if v, ok := strings.CutPrefix(strings.TrimSpace(line), "description:"); ok {
desc = strings.TrimSpace(v)
}
}
body = strings.Join(lines[end+1:], "\n")
}
}
if len(desc) > maxDescription {
desc = desc[:maxDescription] + "…"
}
return Skill{Name: dirName, Description: desc, Body: body, Source: path}, nil
}
func validSkillName(s string) bool {
if s == "" || len(s) > 64 {
return false
}
for _, r := range s {
switch {
case r >= 'a' && r <= 'z', r >= 'A' && r <= 'Z', r >= '0' && r <= '9', r == '-', r == '_':
default:
return false
}
}
return true
}
// ---- load_skill 工具 ----
type loadSkillTool struct{ store *Store }
// RegisterLoader 注册 load_skill 工具(store 无技能时不注册,避免死工具)。
func RegisterLoader(r *tools.Registry, store *Store) {
if store == nil || len(store.List()) == 0 {
return
}
r.Register(&loadSkillTool{store: store})
}
func (t *loadSkillTool) Name() string { return "load_skill" }
func (t *loadSkillTool) Description() string {
return "Load the full instructions of a skill by name (names are listed in the system prompt skill index)."
}
func (t *loadSkillTool) Parameters() json.RawMessage {
return json.RawMessage(`{"type":"object","required":["name"],"properties":{"name":{"type":"string"}}}`)
}
func (t *loadSkillTool) Execute(_ context.Context, args json.RawMessage) (tools.Result, error) {
var obj struct {
Name string `json:"name"`
}
if err := json.Unmarshal(args, &obj); err != nil {
return tools.Result{}, err
}
skill, err := t.store.Load(obj.Name)
if err != nil {
return tools.Result{Content: err.Error(), IsError: true}, nil
}
return tools.Result{Content: "# skill: " + skill.Name + "\n\n" + skill.Body}, nil
}
+112
View File
@@ -0,0 +1,112 @@
package skills
import (
"context"
"encoding/json"
"os"
"path/filepath"
"strings"
"testing"
"agent-native/runtime/tools"
)
func writeSkill(t *testing.T, root, name, body string) {
t.Helper()
dir := filepath.Join(root, name)
if err := os.MkdirAll(dir, 0o755); err != nil {
t.Fatal(err)
}
if err := os.WriteFile(filepath.Join(dir, "SKILL.md"), []byte(body), 0o644); err != nil {
t.Fatal(err)
}
}
func TestStoreListAndLoad(t *testing.T) {
root := t.TempDir()
writeSkill(t, root, "docx-author", "---\ndescription: 生成 docx 交付物\n---\n\n## 步骤\n1. 用 run_python")
writeSkill(t, root, "xlsx-author", "没有 frontmatter 的技能正文")
writeSkill(t, root, "bad name", "目录名不合法") //nolint
store := NewStore(root)
list := store.List()
if len(list) != 2 {
t.Fatalf("want 2 valid skills (bad dir skipped), got %d: %+v", len(list), list)
}
byName := map[string]Skill{}
for _, s := range list {
byName[s.Name] = s
}
if byName["docx-author"].Description != "生成 docx 交付物" {
t.Fatalf("frontmatter description wrong: %+v", byName["docx-author"])
}
if !strings.Contains(byName["docx-author"].Body, "run_python") {
t.Fatalf("body must exclude frontmatter, got %q", byName["docx-author"].Body)
}
if byName["xlsx-author"].Description != "" || !strings.Contains(byName["xlsx-author"].Body, "没有 frontmatter") {
t.Fatalf("no-frontmatter skill wrong: %+v", byName["xlsx-author"])
}
skill, err := store.Load("docx-author")
if err != nil || !strings.Contains(skill.Body, "步骤") {
t.Fatalf("load failed: %v %+v", err, skill)
}
_, err = store.Load("nope")
if err == nil || !strings.Contains(err.Error(), "unknown skill") {
t.Fatalf("unknown skill must fail-closed, got %v", err)
}
}
func TestStoreRootPriorityAndMissingRoot(t *testing.T) {
r1, r2 := t.TempDir(), t.TempDir()
writeSkill(t, r1, "dup", "from r1")
writeSkill(t, r2, "dup", "from r2")
writeSkill(t, r2, "only-r2", "x")
store := NewStore(r1, r2, "/nonexistent/root")
list := store.List()
if len(list) != 2 {
t.Fatalf("want 2 skills, got %d", len(list))
}
skill, _ := store.Load("dup")
if skill.Body != "from r1" {
t.Fatalf("earlier root must win, got %q", skill.Body)
}
}
func TestRegisterLoaderTool(t *testing.T) {
root := t.TempDir()
writeSkill(t, root, "docx-author", "---\ndescription: d\n---\n正文指令")
reg := tools.NewRegistry(t.TempDir())
RegisterLoader(reg, NewStore(root))
var found bool
for _, d := range reg.Decls() {
if d.Name == "load_skill" {
found = true
}
}
if !found {
t.Fatal("load_skill must be registered when skills exist")
}
res := reg.Execute(context.Background(), "load_skill", json.RawMessage(`{"name":"docx-author"}`))
if res.IsError || !strings.Contains(res.Content, "正文指令") {
t.Fatalf("load failed: %+v", res)
}
res = reg.Execute(context.Background(), "load_skill", json.RawMessage(`{"name":"ghost"}`))
if !res.IsError || !strings.Contains(res.Content, "unknown skill") {
t.Fatalf("ghost skill must error, got %+v", res)
}
}
func TestRegisterLoaderSkipsEmptyStore(t *testing.T) {
reg := tools.NewRegistry(t.TempDir())
RegisterLoader(reg, NewStore(t.TempDir()))
for _, d := range reg.Decls() {
if d.Name == "load_skill" {
t.Fatal("no skills = no loader tool")
}
}
RegisterLoader(reg, nil)
if len(reg.Decls()) != 0 {
t.Fatal("nil store must not register")
}
}
+103
View File
@@ -0,0 +1,103 @@
// Package subagent 定义委派端口:内核不内置嵌套执行(那是编排层职责),
// 只提供工具面与信息集契约;宿主(产品 SpawnSubagent、小队引擎等)
// 注入 Factory 实现真实派生执行。未注入则 delegate_task 不注册(fail-closed)。
//
// 信息集对齐 agent-execution 标准的委派条款:目标、输入、写范围、非目标、
// 完成判据、预算与回传格式——子任务不能从父任务目标推导额外权限。
package subagent
import (
"context"
"encoding/json"
"fmt"
"sort"
"strings"
"time"
"agent-native/runtime/tools"
)
// Request 是一次委派的完整信息集(模型经工具参数逐项填写)。
type Request struct {
Goal string `json:"goal"`
Inputs string `json:"inputs,omitempty"`
WriteScope string `json:"write_scope,omitempty"`
NonGoals string `json:"non_goals,omitempty"`
DoneCriteria string `json:"done_criteria,omitempty"`
Deliverables []string `json:"deliverables,omitempty"`
// Deadline / MaxToolCalls 是宿主注入的预算余量(模型不可自行扩权)。
Deadline time.Time `json:"-"`
MaxToolCalls int `json:"-"`
}
// Result 是子代理的回传:至少包含结论文本;文件由宿主按写范围物化。
type Result struct {
Success bool
Text string
Files map[string][]byte
Err string
}
// Factory 由宿主注入;ctx 取消必须传播到子执行。
type Factory func(ctx context.Context, req Request) (Result, error)
type delegateTool struct{ factory Factory }
// Register 把 delegate_task 工具注册进注册表(factory 为 nil 时不注册)。
func Register(r *tools.Registry, factory Factory) {
if factory == nil {
return
}
r.Register(&delegateTool{factory: factory})
}
func (t *delegateTool) Name() string { return "delegate_task" }
func (t *delegateTool) Description() string {
return "Delegate a self-contained subtask to a fresh sub-agent. Fill every field: goal, inputs (with versions), write_scope (directory the sub-agent may write), non_goals, done_criteria, deliverables. The sub-agent cannot exceed your permissions; report back its conclusion and files."
}
func (t *delegateTool) Parameters() json.RawMessage {
return json.RawMessage(`{"type":"object","required":["goal","done_criteria"],"properties":{
"goal":{"type":"string"},
"inputs":{"type":"string"},
"write_scope":{"type":"string"},
"non_goals":{"type":"string"},
"done_criteria":{"type":"string"},
"deliverables":{"type":"array","items":{"type":"string"}}
}}`)
}
func (t *delegateTool) Execute(ctx context.Context, args json.RawMessage) (tools.Result, error) {
var req Request
if err := json.Unmarshal(args, &req); err != nil {
return tools.Result{}, err
}
if strings.TrimSpace(req.Goal) == "" {
return tools.Result{Content: "goal is empty", IsError: true}, nil
}
if ctx.Err() != nil {
return tools.Result{Content: "delegation canceled before start: " + ctx.Err().Error(), IsError: true}, nil
}
res, err := t.factory(ctx, req)
if err != nil {
return tools.Result{Content: fmt.Sprintf("sub-agent failed: %v", err), IsError: true}, nil
}
var b strings.Builder
if res.Success {
b.WriteString("[sub-agent succeeded]\n")
} else {
b.WriteString("[sub-agent failed]\n")
}
if res.Err != "" {
b.WriteString("error: " + res.Err + "\n")
}
b.WriteString(res.Text)
if len(res.Files) > 0 {
names := make([]string, 0, len(res.Files))
for name := range res.Files {
names = append(names, name)
}
sort.Strings(names)
b.WriteString("\nfiles: " + strings.Join(names, ", "))
}
return tools.Result{Content: b.String(), IsError: !res.Success}, nil
}
+86
View File
@@ -0,0 +1,86 @@
package subagent
import (
"context"
"encoding/json"
"strings"
"testing"
"agent-native/runtime/tools"
)
func TestRegisterNilFactoryNoop(t *testing.T) {
reg := tools.NewRegistry(t.TempDir())
Register(reg, nil)
for _, d := range reg.Decls() {
if d.Name == "delegate_task" {
t.Fatal("nil factory must not register delegate_task")
}
}
}
func TestDelegateToolRoundTrip(t *testing.T) {
var got Request
reg := tools.NewRegistry(t.TempDir())
Register(reg, func(ctx context.Context, req Request) (Result, error) {
got = req
return Result{
Success: true,
Text: "调研完成:结论 A。",
Files: map[string][]byte{"notes.md": []byte("n"), "data/table.csv": []byte("c")},
}, nil
})
res := reg.Execute(context.Background(), "delegate_task", json.RawMessage(`{
"goal":"调研主题 X",
"inputs":"docs/v2 规范",
"write_scope":"research/",
"non_goals":"不做实现",
"done_criteria":"产出三来源对照表",
"deliverables":["notes.md","data/table.csv"]
}`))
if res.IsError {
t.Fatal(res.Content)
}
if got.Goal != "调研主题 X" || got.WriteScope != "research/" || got.DoneCriteria != "产出三来源对照表" {
t.Fatalf("delegation fields lost: %+v", got)
}
if !strings.Contains(res.Content, "[sub-agent succeeded]") ||
!strings.Contains(res.Content, "调研完成") ||
!strings.Contains(res.Content, "files: data/table.csv, notes.md") {
t.Fatalf("result text wrong:\n%s", res.Content)
}
}
func TestDelegateToolFailureAndValidation(t *testing.T) {
reg := tools.NewRegistry(t.TempDir())
Register(reg, func(ctx context.Context, req Request) (Result, error) {
return Result{Success: false, Err: "子任务超出预算"}, nil
})
res := reg.Execute(context.Background(), "delegate_task", json.RawMessage(`{"goal":"g","done_criteria":"d"}`))
if !res.IsError || !strings.Contains(res.Content, "[sub-agent failed]") || !strings.Contains(res.Content, "子任务超出预算") {
t.Fatalf("failure must propagate, got %+v", res)
}
// goal 必填(schema 校验拦截)。
res = reg.Execute(context.Background(), "delegate_task", json.RawMessage(`{"done_criteria":"d"}`))
if !res.IsError || !strings.Contains(res.Content, "required argument goal") {
t.Fatalf("missing goal must fail schema validation, got %+v", res)
}
}
func TestDelegateToolFactoryErrorAndCancel(t *testing.T) {
reg := tools.NewRegistry(t.TempDir())
Register(reg, func(ctx context.Context, req Request) (Result, error) {
return Result{}, context.Canceled
})
res := reg.Execute(context.Background(), "delegate_task", json.RawMessage(`{"goal":"g","done_criteria":"d"}`))
if !res.IsError || !strings.Contains(res.Content, "sub-agent failed") {
t.Fatalf("factory error must surface, got %+v", res)
}
ctx, cancel := context.WithCancel(context.Background())
cancel()
res = reg.Execute(ctx, "delegate_task", json.RawMessage(`{"goal":"g","done_criteria":"d"}`))
if !res.IsError || !strings.Contains(res.Content, "canceled before start") {
t.Fatalf("pre-canceled delegation must not start, got %+v", res)
}
}
+129 -13
View File
@@ -6,6 +6,7 @@ import (
"fmt"
"os"
"path/filepath"
"regexp"
"strings"
)
@@ -13,17 +14,21 @@ type readFile struct{ root string }
func (t *readFile) Name() string { return "read_file" }
func (t *readFile) Description() string {
return "Read a UTF-8 text file inside the workspace."
return "Read a UTF-8 text file inside the workspace. Without offset/limit returns the whole file (truncated at 200 KiB); with offset/limit returns numbered lines from a 1-based offset."
}
func (t *readFile) Parameters() json.RawMessage {
return json.RawMessage(`{"type":"object","required":["path"],"properties":{"path":{"type":"string"}}}`)
return json.RawMessage(`{"type":"object","required":["path"],"properties":{"path":{"type":"string"},"offset":{"type":"integer","description":"1-based first line to return"},"limit":{"type":"integer","description":"number of lines to return"}}}`)
}
func (t *readFile) Execute(_ context.Context, args json.RawMessage) (Result, error) {
rel, err := readArg(args, "path")
if err != nil {
var obj struct {
Path string `json:"path"`
Offset int `json:"offset"`
Limit int `json:"limit"`
}
if err := json.Unmarshal(args, &obj); err != nil {
return Result{}, err
}
path, err := mustPath(t.root, rel)
path, err := mustPath(t.root, obj.Path)
if err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
@@ -31,10 +36,37 @@ func (t *readFile) Execute(_ context.Context, args json.RawMessage) (Result, err
if err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
if len(b) > maxReadBytes {
b = b[:maxReadBytes]
if obj.Offset <= 0 && obj.Limit <= 0 {
truncated := false
if len(b) > maxReadBytes {
b = b[:maxReadBytes]
truncated = true
}
content := string(b)
if truncated {
content += "\n[truncated at 200 KiB; use offset/limit to page through the file]"
}
return Result{Content: content}, nil
}
return Result{Content: string(b)}, nil
if obj.Offset <= 0 {
obj.Offset = 1
}
if obj.Limit <= 0 {
obj.Limit = 1000
}
lines := strings.Split(string(b), "\n")
if obj.Offset > len(lines) {
return Result{Content: fmt.Sprintf("offset %d beyond end of file (%d lines)", obj.Offset, len(lines)), IsError: true}, nil
}
end := obj.Offset - 1 + obj.Limit
if end > len(lines) {
end = len(lines)
}
var out []string
for i := obj.Offset - 1; i < end; i++ {
out = append(out, fmt.Sprintf("%d\t%s", i+1, lines[i]))
}
return Result{Content: strings.Join(out, "\n")}, nil
}
type writeFile struct{ root string }
@@ -145,22 +177,51 @@ type grepTool struct{ root string }
func (t *grepTool) Name() string { return "grep" }
func (t *grepTool) Description() string {
return "Search workspace text files for a literal substring."
return "Search workspace text files. Literal substring by default; regex=true switches to Go regexp, include filters file names (e.g. *.go), ignore_case folds case. Caps at 50 hits."
}
func (t *grepTool) Parameters() json.RawMessage {
return json.RawMessage(`{"type":"object","required":["pattern"],"properties":{"pattern":{"type":"string"},"path":{"type":"string"}}}`)
return json.RawMessage(`{"type":"object","required":["pattern"],"properties":{"pattern":{"type":"string"},"path":{"type":"string"},"regex":{"type":"boolean"},"ignore_case":{"type":"boolean"},"include":{"type":"string","description":"file-name glob filter such as *.go"}}}`)
}
func (t *grepTool) Execute(_ context.Context, args json.RawMessage) (Result, error) {
var obj struct {
Pattern string `json:"pattern"`
Path string `json:"path"`
Pattern string `json:"pattern"`
Path string `json:"path"`
Regex bool `json:"regex"`
IgnoreCase bool `json:"ignore_case"`
Include string `json:"include"`
}
if err := json.Unmarshal(args, &obj); err != nil {
return Result{}, err
}
if strings.TrimSpace(obj.Pattern) == "" {
return Result{Content: "pattern is empty", IsError: true}, nil
}
if obj.Path == "" {
obj.Path = "."
}
var includeRe *globMatcher
if strings.TrimSpace(obj.Include) != "" {
m, err := newGlobMatcher(obj.Include)
if err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
includeRe = m
}
contains := func(line string) bool { return strings.Contains(line, obj.Pattern) }
if obj.Regex {
pat := obj.Pattern
if obj.IgnoreCase {
pat = "(?i)" + pat
}
re, cerr := regexp.Compile(pat)
if cerr != nil {
return Result{Content: cerr.Error(), IsError: true}, nil
}
contains = re.MatchString
} else if obj.IgnoreCase {
lower := strings.ToLower(obj.Pattern)
contains = func(line string) bool { return strings.Contains(strings.ToLower(line), lower) }
}
start, err := mustPath(t.root, obj.Path)
if err != nil {
return Result{Content: err.Error(), IsError: true}, nil
@@ -173,13 +234,16 @@ func (t *grepTool) Execute(_ context.Context, args json.RawMessage) (Result, err
if len(hits) >= 50 {
return fmt.Errorf("stop")
}
if includeRe != nil && !includeRe.Match(filepath.Base(path)) {
return nil
}
b, err := os.ReadFile(path)
if err != nil || len(b) > maxReadBytes {
return nil
}
rel, _ := filepath.Rel(t.root, path)
for i, line := range strings.Split(string(b), "\n") {
if strings.Contains(line, obj.Pattern) {
if contains(line) {
hits = append(hits, fmt.Sprintf("%s:%d:%s", filepath.ToSlash(rel), i+1, line))
if len(hits) >= 50 {
return fmt.Errorf("stop")
@@ -196,3 +260,55 @@ func (t *grepTool) Execute(_ context.Context, args json.RawMessage) (Result, err
}
return Result{Content: strings.Join(hits, "\n")}, nil
}
// multiEditTool 一次多处替换:全部命中且互不冲突才落盘,任一失败即整体不动。
type multiEditTool struct{ root string }
func (t *multiEditTool) Name() string { return "multi_edit" }
func (t *multiEditTool) Description() string {
return "Apply several unique-span replacements to one workspace file atomically: either all edits land or the file is left untouched."
}
func (t *multiEditTool) Parameters() json.RawMessage {
return json.RawMessage(`{"type":"object","required":["path","edits"],"properties":{"path":{"type":"string"},"edits":{"type":"array","items":{"type":"object","required":["old","new"],"properties":{"old":{"type":"string"},"new":{"type":"string"}}}}}}`)
}
type multiEditSpan struct {
Old string `json:"old"`
New string `json:"new"`
}
func (t *multiEditTool) Execute(_ context.Context, args json.RawMessage) (Result, error) {
var obj struct {
Path string `json:"path"`
Edits []multiEditSpan `json:"edits"`
}
if err := json.Unmarshal(args, &obj); err != nil {
return Result{}, err
}
if len(obj.Edits) == 0 {
return Result{Content: "edits is empty", IsError: true}, nil
}
path, err := mustPath(t.root, obj.Path)
if err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
b, err := os.ReadFile(path)
if err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
text := string(b)
for i, e := range obj.Edits {
if e.Old == "" {
return Result{Content: fmt.Sprintf("edit %d: old text is empty", i+1), IsError: true}, nil
}
n := strings.Count(text, e.Old)
if n != 1 {
return Result{Content: fmt.Sprintf("edit %d: expected one match, found %d; file unchanged", i+1, n), IsError: true}, nil
}
text = strings.Replace(text, e.Old, e.New, 1)
}
if err := os.WriteFile(path, []byte(text), 0o644); err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
return Result{Content: fmt.Sprintf("applied %d edits to %s", len(obj.Edits), obj.Path)}, nil
}
+158
View File
@@ -0,0 +1,158 @@
package tools
import (
"context"
"os"
"path/filepath"
"strings"
"testing"
)
func writeFileT(t *testing.T, root, rel, content string) {
t.Helper()
path := filepath.Join(root, filepath.FromSlash(rel))
if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
t.Fatal(err)
}
if err := os.WriteFile(path, []byte(content), 0o644); err != nil {
t.Fatal(err)
}
}
func runTool(t *testing.T, reg *Registry, name, args string) Result {
t.Helper()
res := reg.Execute(context.Background(), name, []byte(args))
return res
}
func TestReadFileLineRange(t *testing.T) {
root := t.TempDir()
writeFileT(t, root, "a.txt", "l1\nl2\nl3\nl4\nl5")
reg := WorkspaceTools(root)
res := runTool(t, reg, "read_file", `{"path":"a.txt","offset":2,"limit":2}`)
if res.IsError || res.Content != "2\tl2\n3\tl3" {
t.Fatalf("want numbered lines 2-3, got %+v", res)
}
res = runTool(t, reg, "read_file", `{"path":"a.txt","offset":4}`)
if res.IsError || res.Content != "4\tl4\n5\tl5" {
t.Fatalf("want tail from line 4, got %+v", res)
}
res = runTool(t, reg, "read_file", `{"path":"a.txt","offset":99}`)
if !res.IsError || !strings.Contains(res.Content, "beyond end") {
t.Fatalf("want beyond-end error, got %+v", res)
}
// 无 offset/limit 保持旧行为:整文件原文。
res = runTool(t, reg, "read_file", `{"path":"a.txt"}`)
if res.IsError || res.Content != "l1\nl2\nl3\nl4\nl5" {
t.Fatalf("legacy whole-file read changed, got %+v", res)
}
}
func TestGrepRegexIncludeAndCase(t *testing.T) {
root := t.TempDir()
writeFileT(t, root, "src/a.go", "func Alpha() {}\nfunc beta() {}\n")
writeFileT(t, root, "src/b.go", "func Gamma() {}\n")
writeFileT(t, root, "doc/a.md", "func Alpha docs\n")
reg := WorkspaceTools(root)
res := runTool(t, reg, "grep", `{"pattern":"func [A-Z][a-z]+","regex":true,"include":"*.go"}`)
if res.IsError {
t.Fatal(res.Content)
}
if !strings.Contains(res.Content, "src/a.go:1:func Alpha() {}") || !strings.Contains(res.Content, "src/b.go:1:func Gamma() {}") {
t.Fatalf("regex+include should hit go files only, got:\n%s", res.Content)
}
if strings.Contains(res.Content, "a.md") || strings.Contains(res.Content, "beta") {
t.Fatalf("md file / lowercase must not match, got:\n%s", res.Content)
}
res = runTool(t, reg, "grep", `{"pattern":"FUNC BETA","regex":true,"ignore_case":true}`)
if res.IsError || !strings.Contains(res.Content, "func beta() {}") {
t.Fatalf("ignore_case regex failed, got %+v", res)
}
res = runTool(t, reg, "grep", `{"pattern":"func [","regex":true}`)
if !res.IsError {
t.Fatal("invalid regex must be an error result")
}
// 字面默认路径不变。
res = runTool(t, reg, "grep", `{"pattern":"Alpha"}`)
if res.IsError || !strings.Contains(res.Content, "a.go:1") {
t.Fatalf("literal default failed, got %+v", res)
}
}
func TestGlobDoubleStar(t *testing.T) {
root := t.TempDir()
writeFileT(t, root, "docs/x/deep/a.md", "x")
writeFileT(t, root, "docs/b.md", "x")
writeFileT(t, root, "src/main.go", "x")
writeFileT(t, root, "main.go", "x")
reg := WorkspaceTools(root)
res := runTool(t, reg, "glob", `{"pattern":"**/*.go"}`)
if res.IsError {
t.Fatal(res.Content)
}
if !strings.Contains(res.Content, "src/main.go") || !strings.Contains(res.Content, "main.go") || strings.Contains(res.Content, ".md") {
t.Fatalf("**/*.go wrong, got:\n%s", res.Content)
}
res = runTool(t, reg, "glob", `{"pattern":"docs/**/*.md"}`)
if res.IsError || !strings.Contains(res.Content, "docs/x/deep/a.md") || !strings.Contains(res.Content, "docs/b.md") {
t.Fatalf("docs/**/*.md wrong, got:\n%s", res.Content)
}
res = runTool(t, reg, "glob", `{"pattern":"docs/**"}`)
if res.IsError || !strings.Contains(res.Content, "docs/b.md") || !strings.Contains(res.Content, "docs/x/deep/a.md") {
t.Fatalf("trailing ** must match everything below, got:\n%s", res.Content)
}
res = runTool(t, reg, "glob", `{"pattern":"**/nope.txt"}`)
if res.IsError || res.Content != "no matches" {
t.Fatalf("want no matches, got %+v", res)
}
}
func TestGlobEscapingOutsideWorkspace(t *testing.T) {
reg := WorkspaceTools(t.TempDir())
// glob 只在工作区内匹配(WalkDir 从 root 出发),模式里的 ../ 无从逃逸;
// 字面 .. 也只是找不到匹配。
res := runTool(t, reg, "glob", `{"pattern":"../**/*.go"}`)
if res.IsError && res.Content == "" {
t.Fatal("unexpected empty error")
}
}
func TestMultiEditAtomic(t *testing.T) {
root := t.TempDir()
writeFileT(t, root, "a.md", "alpha\nbeta\ngamma\n")
reg := WorkspaceTools(root)
res := runTool(t, reg, "multi_edit", `{"path":"a.md","edits":[{"old":"alpha","new":"ALPHA"},{"old":"gamma","new":"GAMMA"}]}`)
if res.IsError || res.Content != "applied 2 edits to a.md" {
t.Fatalf("want both applied, got %+v", res)
}
data, _ := os.ReadFile(filepath.Join(root, "a.md"))
if string(data) != "ALPHA\nbeta\nGAMMA\n" {
t.Fatalf("file content wrong: %q", data)
}
// 第二处替换失败 → 文件保持原样(全有或全无)。
writeFileT(t, root, "b.md", "one\ntwo\n")
res = runTool(t, reg, "multi_edit", `{"path":"b.md","edits":[{"old":"one","new":"ONE"},{"old":"three","new":"THREE"}]}`)
if !res.IsError || !strings.Contains(res.Content, "found 0") || !strings.Contains(res.Content, "unchanged") {
t.Fatalf("want atomic failure, got %+v", res)
}
data, _ = os.ReadFile(filepath.Join(root, "b.md"))
if string(data) != "one\ntwo\n" {
t.Fatalf("failed batch must not modify file, got %q", data)
}
res = runTool(t, reg, "multi_edit", `{"path":"b.md","edits":[]}`)
if !res.IsError {
t.Fatal("empty edits must be an error")
}
}
+194
View File
@@ -0,0 +1,194 @@
package tools
import (
"context"
"encoding/json"
"fmt"
"math/rand"
"os"
"os/exec"
"path/filepath"
"strings"
"syscall"
"time"
)
// ExecConfig 声明执行类工具的运行条件,由组合根显式提供;
// 未提供(nil)时 run_command / run_python 一律不注册(fail-closed)。
// 注意:工作区路径约束不等于 OS 沙箱——进程仍以当前用户权限运行,
// 隔离需由宿主环境提供(容器/沙箱),本文件只做时限、输出、env 与审计收敛。
type ExecConfig struct {
// Bash / Python 是解释器绝对路径;留空则对应工具不注册。
Bash string
Python string
// Env 传给子进程的完整白名单环境(KEY=VALUE);不含本进程任何隐式变量。
Env []string
// ScriptDir 落盘脚本目录(相对 root,默认 .agent/scripts);空用默认。
ScriptDir string
}
const (
execDefaultTimeout = 60 * time.Second
execMaxTimeout = 300 * time.Second
execMaxOutput = 64 << 10
)
// blockedCommandMarkers 最小命令黑名单:明显提权/自毁模式直接拒绝。
// 这不是沙箱,只是防呆;真实隔离靠宿主环境。
var blockedCommandMarkers = []string{
"sudo ", "sudo\t", "sudo\n",
"rm -rf /", "rm -fr /",
":(){:|:&};:",
"mkfs", "shutdown", "reboot",
}
// RegisterExecTools 注册 run_command / run_python(解释器未配置的项跳过注册)。
func RegisterExecTools(r *Registry, root string, cfg ExecConfig) {
if strings.TrimSpace(cfg.Bash) != "" {
r.Register(&runCommandTool{root: root, cfg: cfg})
}
if strings.TrimSpace(cfg.Python) != "" {
r.Register(&runPythonTool{root: root, cfg: cfg})
}
}
type runCommandTool struct {
root string
cfg ExecConfig
}
func (t *runCommandTool) Name() string { return "run_command" }
func (t *runCommandTool) Description() string {
return "Run a bash command in the workspace root (process group, default 60s timeout, 64 KiB output cap). Non-zero exit and timeout are reported as text. NOT an OS sandbox."
}
func (t *runCommandTool) Parameters() json.RawMessage {
return json.RawMessage(`{"type":"object","required":["command"],"properties":{"command":{"type":"string"},"timeout_seconds":{"type":"integer","description":"1..300, default 60"}}}`)
}
func (t *runCommandTool) Execute(ctx context.Context, args json.RawMessage) (Result, error) {
var obj struct {
Command string `json:"command"`
TimeoutSeconds int `json:"timeout_seconds"`
}
if err := json.Unmarshal(args, &obj); err != nil {
return Result{}, err
}
if strings.TrimSpace(obj.Command) == "" {
return Result{Content: "command is empty", IsError: true}, nil
}
if blocked(obj.Command) {
return Result{Content: "command rejected by blocklist (sudo / destructive patterns are not allowed)", IsError: true}, nil
}
timeout := clampTimeout(obj.TimeoutSeconds)
out, timedOut, err := runProcess(ctx, t.cfg.Bash, []string{"-c", obj.Command}, t.root, t.cfg.Env, timeout)
content := formatProcessOutput(out, timedOut, err)
return Result{Content: content, IsError: timedOut || err != nil}, nil
}
type runPythonTool struct {
root string
cfg ExecConfig
}
func (t *runPythonTool) Name() string { return "run_python" }
func (t *runPythonTool) Description() string {
return "Run a Python script: the code is persisted under .agent/scripts/ in the workspace and executed with the configured python3 interpreter (default 60s timeout, 64 KiB output cap)."
}
func (t *runPythonTool) Parameters() json.RawMessage {
return json.RawMessage(`{"type":"object","required":["code"],"properties":{"code":{"type":"string"},"timeout_seconds":{"type":"integer","description":"1..300, default 60"}}}`)
}
func (t *runPythonTool) Execute(ctx context.Context, args json.RawMessage) (Result, error) {
var obj struct {
Code string `json:"code"`
TimeoutSeconds int `json:"timeout_seconds"`
}
if err := json.Unmarshal(args, &obj); err != nil {
return Result{}, err
}
if strings.TrimSpace(obj.Code) == "" {
return Result{Content: "code is empty", IsError: true}, nil
}
dir := t.cfg.ScriptDir
if dir == "" {
dir = ".agent/scripts"
}
scriptDir := filepath.Join(t.root, filepath.FromSlash(dir))
if err := os.MkdirAll(scriptDir, 0o755); err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
name := fmt.Sprintf("%s-%06d.py", time.Now().UTC().Format("20060102T150405"), rand.Intn(1000000))
script := filepath.Join(scriptDir, name)
if err := os.WriteFile(script, []byte(obj.Code), 0o644); err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
timeout := clampTimeout(obj.TimeoutSeconds)
out, timedOut, err := runProcess(ctx, t.cfg.Python, []string{script}, t.root, t.cfg.Env, timeout)
content := formatProcessOutput(out, timedOut, err)
content = "script: " + filepath.ToSlash(filepath.Join(dir, name)) + "\n" + content
return Result{Content: content, IsError: timedOut || err != nil}, nil
}
// runProcess 启动独立进程组的子进程;ctx 取消或超时先到者杀整组(SIGKILL)。
func runProcess(ctx context.Context, interpreter string, argv []string, dir string, env []string, timeout time.Duration) (out []byte, timedOut bool, err error) {
runCtx, cancel := context.WithTimeout(ctx, timeout)
defer cancel()
cmd := exec.CommandContext(runCtx, interpreter, argv...)
cmd.Dir = dir
cmd.Env = env
// 独立进程组:超时/取消时杀 -PGID,确保孙进程一并退出。
cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
cmd.Cancel = func() error {
if cmd.Process != nil {
return syscall.Kill(-cmd.Process.Pid, syscall.SIGKILL)
}
return nil
}
cmd.WaitDelay = 3 * time.Second
out, err = cmd.CombinedOutput()
timedOut = runCtx.Err() != nil && (ctx.Err() == nil || runCtx.Err() != ctx.Err())
return out, timedOut, err
}
func clampTimeout(seconds int) time.Duration {
if seconds <= 0 {
return execDefaultTimeout
}
if seconds > int(execMaxTimeout.Seconds()) {
return execMaxTimeout
}
return time.Duration(seconds) * time.Second
}
func blocked(command string) bool {
lower := strings.ToLower(command)
for _, m := range blockedCommandMarkers {
if strings.Contains(lower, m) {
return true
}
}
return false
}
// formatProcessOutput 截断为头尾各半(总上限 execMaxOutput)并标注退出状态。
func formatProcessOutput(out []byte, timedOut bool, err error) string {
text := string(out)
if len(out) > execMaxOutput {
half := execMaxOutput / 2
dropped := len(out) - execMaxOutput
text = string(out[:half]) + fmt.Sprintf("\n[... truncated %d bytes ...]\n", dropped) + string(out[len(out)-half:])
}
switch {
case timedOut:
text += "\n[timeout: process group killed]"
case err != nil:
if ee, ok := err.(*exec.ExitError); ok {
text += fmt.Sprintf("\n[exit code %d]", ee.ExitCode())
} else {
text += "\n[error] " + err.Error()
}
default:
text += "\n[exit code 0]"
}
return text
}
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package tools
import (
"context"
"os"
"os/exec"
"path/filepath"
"strings"
"testing"
"time"
)
func lookInterpreter(t *testing.T, name string) string {
t.Helper()
p, err := exec.LookPath(name)
if err != nil {
t.Fatalf("%s interpreter not available on host: %v", name, err)
}
return p
}
func TestRunCommandEchoAndExitCode(t *testing.T) {
bash := lookInterpreter(t, "bash")
root := t.TempDir()
reg := NewRegistry(root)
RegisterExecTools(reg, root, ExecConfig{Bash: bash, Env: []string{"PATH=/usr/bin:/bin"}})
res := runTool(t, reg, "run_command", `{"command":"echo hello"}`)
if res.IsError || !strings.Contains(res.Content, "hello") || !strings.Contains(res.Content, "[exit code 0]") {
t.Fatalf("echo failed: %+v", res)
}
res = runTool(t, reg, "run_command", `{"command":"echo boom >&2; exit 3"}`)
if !res.IsError || !strings.Contains(res.Content, "boom") || !strings.Contains(res.Content, "[exit code 3]") {
t.Fatalf("non-zero exit must be reported as text: %+v", res)
}
}
func TestRunCommandEnvWhitelist(t *testing.T) {
bash := lookInterpreter(t, "bash")
t.Setenv("KERNEL_SECRET_LEAK", "must-not-leak")
root := t.TempDir()
reg := NewRegistry(root)
RegisterExecTools(reg, root, ExecConfig{
Bash: bash,
Env: []string{"PATH=/usr/bin:/bin", "ALLOWED_FLAG=yes"},
})
res := runTool(t, reg, "run_command", `{"command":"echo allowed=$ALLOWED_FLAG secret=${KERNEL_SECRET_LEAK:-absent}"}`)
if res.IsError {
t.Fatal(res.Content)
}
if !strings.Contains(res.Content, "allowed=yes") || !strings.Contains(res.Content, "secret=absent") {
t.Fatalf("env whitelist violated, got:\n%s", res.Content)
}
}
func TestRunCommandTimeoutKillsProcessGroup(t *testing.T) {
bash := lookInterpreter(t, "bash")
root := t.TempDir()
reg := NewRegistry(root)
RegisterExecTools(reg, root, ExecConfig{Bash: bash, Env: []string{"PATH=/usr/bin:/bin"}})
start := time.Now()
res := runTool(t, reg, "run_command", `{"command":"sleep 30 & sleep 30","timeout_seconds":1}`)
elapsed := time.Since(start)
if !res.IsError || !strings.Contains(res.Content, "[timeout: process group killed]") {
t.Fatalf("want timeout kill, got %+v", res)
}
if elapsed > 10*time.Second {
t.Fatalf("process group must die promptly, took %s", elapsed)
}
}
func TestRunCommandContextCancelKillsGroup(t *testing.T) {
bash := lookInterpreter(t, "bash")
root := t.TempDir()
reg := NewRegistry(root)
RegisterExecTools(reg, root, ExecConfig{Bash: bash, Env: []string{"PATH=/usr/bin:/bin"}})
ctx, cancel := context.WithCancel(context.Background())
go func() {
time.Sleep(200 * time.Millisecond)
cancel()
}()
start := time.Now()
res := reg.Execute(ctx, "run_command", []byte(`{"command":"sleep 30","timeout_seconds":60}`))
elapsed := time.Since(start)
if elapsed > 10*time.Second {
t.Fatalf("cancel must kill promptly, took %s", elapsed)
}
if !res.IsError {
t.Fatalf("canceled command must be an error result, got %+v", res)
}
}
func TestRunCommandBlocklist(t *testing.T) {
bash := lookInterpreter(t, "bash")
root := t.TempDir()
reg := NewRegistry(root)
RegisterExecTools(reg, root, ExecConfig{Bash: bash, Env: []string{"PATH=/usr/bin:/bin"}})
for _, cmd := range []string{
`{"command":"sudo rm x"}`,
`{"command":"rm -rf /"}`,
`{"command":"shutdown now"}`,
} {
res := runTool(t, reg, "run_command", cmd)
if !res.IsError || !strings.Contains(res.Content, "blocklist") {
t.Fatalf("blocklist must reject %s, got %+v", cmd, res)
}
}
}
func TestRunCommandOutputTruncation(t *testing.T) {
bash := lookInterpreter(t, "bash")
root := t.TempDir()
reg := NewRegistry(root)
RegisterExecTools(reg, root, ExecConfig{Bash: bash, Env: []string{"PATH=/usr/bin:/bin"}})
res := runTool(t, reg, "run_command", `{"command":"head -c 200000 /dev/zero | tr '\\0' 'x'"}`)
if res.IsError {
t.Fatal(res.Content)
}
if len(res.Content) > execMaxOutput+512 {
t.Fatalf("output must be truncated to ~%d bytes, got %d", execMaxOutput, len(res.Content))
}
if !strings.Contains(res.Content, "truncated") {
t.Fatalf("truncation marker missing, len=%d", len(res.Content))
}
}
func TestRunPythonPersistsScriptAndRuns(t *testing.T) {
python := lookInterpreter(t, "python3")
root := t.TempDir()
reg := NewRegistry(root)
RegisterExecTools(reg, root, ExecConfig{Python: python, Env: []string{"PATH=/usr/bin:/bin"}})
res := runTool(t, reg, "run_python", `{"code":"print(2 + 3)\n"}`)
if res.IsError || !strings.Contains(res.Content, "5") {
t.Fatalf("python run failed: %+v", res)
}
if !strings.Contains(res.Content, "script: .agent/scripts/") {
t.Fatalf("script path must be reported, got:\n%s", res.Content)
}
matches, _ := filepath.Glob(filepath.Join(root, ".agent", "scripts", "*.py"))
if len(matches) != 1 {
t.Fatalf("script must be persisted exactly once, got %v", matches)
}
// 脚本内容落盘可审计。
data, _ := os.ReadFile(matches[0])
if !strings.Contains(string(data), "print(2 + 3)") {
t.Fatalf("persisted script content wrong: %q", data)
}
}
func TestRegisterExecToolsSkipsMissingInterpreters(t *testing.T) {
reg := NewRegistry(t.TempDir())
RegisterExecTools(reg, t.TempDir(), ExecConfig{}) // 无解释器:两个工具都不注册
names := make(map[string]bool)
for _, d := range reg.Decls() {
names[d.Name] = true
}
if names["run_command"] || names["run_python"] {
t.Fatalf("no interpreter configured, exec tools must not register, got %v", names)
}
}
+225
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package tools
import (
"context"
"encoding/json"
"fmt"
"html"
"io"
"net"
"net/http"
"net/url"
"regexp"
"strings"
"time"
)
// FetchConfig 声明 fetch_url 的运行条件;未注册(组合根未提供)则工具不存在。
type FetchConfig struct {
// Client 可选注入(测试替身);缺省构造 20s 超时客户端。
Client *http.Client
// MaxBytes 响应体上限(默认 2 MiB)。
MaxBytes int
// AllowedHosts 非空时仅允许这些主机(域名或 host:port);空 = 公网放开,
// 但私网/回环/链路本地地址在任何模式下都被拒绝(SSRF 硬边界)。
AllowedHosts []string
// Resolve 可选注入主机解析(测试替身);缺省 net.LookupIP。
Resolve func(host string) ([]net.IP, error)
}
const (
fetchTimeout = 20 * time.Second
fetchMaxBytes = 2 << 20
)
func (c *FetchConfig) resolver() func(string) ([]net.IP, error) {
if c.Resolve != nil {
return c.Resolve
}
return net.LookupIP
}
// RegisterFetch 注册 fetch_url 工具(cfg 必须非 nil,由组合根显式提供)。
func RegisterFetch(r *Registry, cfg FetchConfig) {
r.Register(&fetchTool{cfg: cfg})
}
type fetchTool struct {
cfg FetchConfig
}
func (t *fetchTool) Name() string { return "fetch_url" }
func (t *fetchTool) Description() string {
return "Fetch an http(s) URL and return readable text (HTML stripped, up to 2 MiB, 20s timeout). Private/loopback network targets are always rejected."
}
func (t *fetchTool) Parameters() json.RawMessage {
return json.RawMessage(`{"type":"object","required":["url"],"properties":{"url":{"type":"string"}}}`)
}
func (t *fetchTool) Execute(ctx context.Context, args json.RawMessage) (Result, error) {
var obj struct {
URL string `json:"url"`
}
if err := json.Unmarshal(args, &obj); err != nil {
return Result{}, err
}
raw := strings.TrimSpace(obj.URL)
if raw == "" {
return Result{Content: "url is empty", IsError: true}, nil
}
client := t.cfg.Client
if client == nil {
client = &http.Client{Timeout: fetchTimeout}
}
allowed := make(map[string]bool, len(t.cfg.AllowedHosts))
for _, h := range t.cfg.AllowedHosts {
allowed[strings.ToLower(h)] = true
}
maxBytes := t.cfg.MaxBytes
if maxBytes <= 0 {
maxBytes = fetchMaxBytes
}
reqCtx, cancel := context.WithTimeout(ctx, fetchTimeout)
defer cancel()
req, err := http.NewRequestWithContext(reqCtx, http.MethodGet, raw, nil)
if err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
req.Header.Set("User-Agent", "agent-native-fetch/1.0")
var finalURL string
resolve := t.cfg.resolver()
client2 := client
if client2.CheckRedirect == nil {
client2 = &http.Client{
Transport: client.Transport,
Jar: client.Jar,
Timeout: client.Timeout,
CheckRedirect: func(req *http.Request, via []*http.Request) error {
if len(via) >= 5 {
return fmt.Errorf("stopped after 5 redirects")
}
return validateFetchTarget(req.URL, allowed, resolve)
},
}
}
if err := validateFetchTarget(req.URL, allowed, resolve); err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
resp, err := client2.Do(req)
if err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
defer resp.Body.Close()
finalURL = resp.Request.URL.String()
body, err := io.ReadAll(io.LimitReader(resp.Body, int64(maxBytes)+1))
if err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
if len(body) > maxBytes {
body = body[:maxBytes]
}
ct := resp.Header.Get("Content-Type")
text, ok := fetchReadableText(ct, string(body))
if !ok {
return Result{Content: fmt.Sprintf("unsupported content type %q at %s (only text/html/json/xml/yaml/csv are extracted)", ct, finalURL), IsError: true}, nil
}
return Result{Content: "url: " + finalURL + "\ncontent-type: " + ct + "\n\n" + text}, nil
}
// validateFetchTarget 校验 scheme、主机策略与 SSRF 硬边界(私网/回环/链路本地)。
func validateFetchTarget(u *url.URL, allowed map[string]bool, resolve func(string) ([]net.IP, error)) error {
if u.Scheme != "http" && u.Scheme != "https" {
return fmt.Errorf("scheme %q not allowed (http/https only)", u.Scheme)
}
host := u.Hostname()
if host == "" {
return fmt.Errorf("empty host")
}
if len(allowed) > 0 && !allowed[strings.ToLower(host)] {
return fmt.Errorf("host %q not in allowed hosts", host)
}
// 解析全部地址:任一命中私网段即拒绝(域名可能同时解析到公私网地址)。
addrs, err := resolve(host)
if err != nil {
return fmt.Errorf("resolve %q: %w", host, err)
}
for _, ip := range addrs {
if ipIsPrivate(ip) {
return fmt.Errorf("target %q resolves to private/loopback address %s (SSRF guard)", host, ip)
}
}
return nil
}
var fetchPrivateNets = mustParseCIDRs(
"0.0.0.0/8", "10.0.0.0/8", "127.0.0.0/8", "169.254.0.0/16",
"172.16.0.0/12", "192.168.0.0/16", "100.64.0.0/10",
"::1/128", "fc00::/7", "fe80::/10",
)
func mustParseCIDRs(specs ...string) []*net.IPNet {
var out []*net.IPNet
for _, s := range specs {
_, n, err := net.ParseCIDR(s)
if err != nil {
panic("fetch: bad cidr " + s)
}
out = append(out, n)
}
return out
}
func ipIsPrivate(ip net.IP) bool {
// IPv4(含 Go 内部的 ::ffff:a.b.c.d 映射形式)先归一化成 4 字节,
// 否则 ::ffff:0:0/96 这类映射网段会误吞所有 IPv4 地址。
if v4 := ip.To4(); v4 != nil {
ip = v4
}
if ip.IsLoopback() || ip.IsLinkLocalUnicast() || ip.IsLinkLocalMulticast() || ip.IsUnspecified() {
return true
}
for _, n := range fetchPrivateNets {
if n.Contains(ip) {
return true
}
}
return false
}
// fetchReadableText 按内容类型抽取可读文本;HTML 剥脚本样式与标签。
func fetchReadableText(contentType, body string) (string, bool) {
ct := strings.ToLower(strings.TrimSpace(strings.Split(contentType, ";")[0]))
if ct == "" {
ct = "text/plain" // 无声明按纯文本处理
}
switch {
case ct == "text/html":
return htmlToText(body), true
case strings.HasPrefix(ct, "text/"),
ct == "application/json",
ct == "application/xml",
strings.HasSuffix(ct, "+json"),
strings.HasSuffix(ct, "+xml"),
ct == "application/yaml" || ct == "text/yaml",
ct == "application/csv" || ct == "text/csv":
return body, true
default:
return "", false
}
}
var (
fetchScriptRe = regexp.MustCompile(`(?is)<(script|style|noscript)[^>]*>.*?</(script|style|noscript)>`)
fetchTagRe = regexp.MustCompile(`(?s)<[^>]*>`)
fetchSpaceRe = regexp.MustCompile(`\n{3,}`)
)
func htmlToText(body string) string {
s := fetchScriptRe.ReplaceAllString(body, "")
s = fetchTagRe.ReplaceAllString(s, "\n")
s = html.UnescapeString(s)
s = strings.ReplaceAll(s, "\r", "")
s = fetchSpaceRe.ReplaceAllString(s, "\n\n")
return strings.TrimSpace(s)
}
+154
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@@ -0,0 +1,154 @@
package tools
import (
"net"
"net/http"
"net/http/httptest"
"strings"
"testing"
)
// fakeResolve 固定域名 → 地址(无 DNS 依赖的封闭测试)。
func fakeResolve(mapping map[string][]net.IP) func(string) ([]net.IP, error) {
return func(host string) ([]net.IP, error) {
if ips, ok := mapping[host]; ok {
return ips, nil
}
// IP 字面量直接解析。
if ip := net.ParseIP(host); ip != nil {
return []net.IP{ip}, nil
}
return nil, &net.DNSError{Err: "no such host", Name: host}
}
}
func fetchReg(cfg FetchConfig) *Registry {
reg := NewRegistry("/")
RegisterFetch(reg, cfg)
return reg
}
func TestFetchReadableTextUnit(t *testing.T) {
out, ok := fetchReadableText("text/html; charset=utf-8", "<html><script>bad()</script><h1>Hi</h1><p>A &amp; B</p></html>")
if !ok || !strings.Contains(out, "Hi") || !strings.Contains(out, "A & B") || strings.Contains(out, "bad()") {
t.Fatalf("html strip wrong: %q ok=%v", out, ok)
}
out, ok = fetchReadableText("application/json", `{"x":1}`)
if !ok || out != `{"x":1}` {
t.Fatalf("json passthrough wrong: %q", out)
}
_, ok = fetchReadableText("image/png", "binary")
if ok {
t.Fatal("binary content type must be rejected")
}
out, ok = fetchReadableText("", "no content type")
if !ok || out != "no content type" {
t.Fatalf("empty content type should default to text, got %q %v", out, ok)
}
}
func TestFetchURLSSRDGuards(t *testing.T) {
reg := fetchReg(FetchConfig{Resolve: fakeResolve(nil)})
for _, target := range []string{
`{"url":"http://127.0.0.1/x"}`,
`{"url":"http://10.0.0.5/x"}`,
`{"url":"http://192.168.1.1/x"}`,
`{"url":"http://169.254.169.254/latest/meta-data"}`,
`{"url":"http://[::1]/x"}`,
`{"url":"file:///etc/passwd"}`,
} {
res := runTool(t, reg, "fetch_url", target)
if !res.IsError {
t.Fatalf("SSRF/scheme guard must reject %s, got %+v", target, res)
}
}
// 域名解析到私网同样拒绝。
reg2 := fetchReg(FetchConfig{Resolve: fakeResolve(map[string][]net.IP{
"internal.example": {net.ParseIP("192.168.0.10")},
})})
res := runTool(t, reg2, "fetch_url", `{"url":"http://internal.example/x"}`)
if !res.IsError || !strings.Contains(res.Content, "SSRF guard") {
t.Fatalf("private resolution must be rejected, got %+v", res)
}
}
func TestFetchURLAllowedHostsPolicy(t *testing.T) {
reg := fetchReg(FetchConfig{
AllowedHosts: []string{"api.example.com"},
Resolve: fakeResolve(map[string][]net.IP{"api.example.com": {net.ParseIP("93.184.216.34")}}),
})
res := runTool(t, reg, "fetch_url", `{"url":"http://other.example.com/x"}`)
if !res.IsError || !strings.Contains(res.Content, "not in allowed hosts") {
t.Fatalf("host policy must reject, got %+v", res)
}
// 允许的主机:校验必须放行(真实网络下可能成功取回,也可能因出口
// 受限连接失败——两者都不算策略拦截)。
res = runTool(t, reg, "fetch_url", `{"url":"http://api.example.com/x"}`)
if strings.Contains(res.Content, "not in allowed") || strings.Contains(res.Content, "SSRF") {
t.Fatalf("allowed host should pass validation, got %+v", res)
}
}
func TestFetchURLEndToEndWithStubTransport(t *testing.T) {
var handler http.HandlerFunc = func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain")
_, _ = w.Write([]byte("fetched body"))
}
reg := fetchReg(FetchConfig{
Client: &http.Client{Transport: stubTransport{handler: handler}},
Resolve: fakeResolve(map[string][]net.IP{"ok.example": {net.ParseIP("93.184.216.34")}}),
})
res := runTool(t, reg, "fetch_url", `{"url":"http://ok.example/x"}`)
if res.IsError {
t.Fatal(res.Content)
}
if !strings.Contains(res.Content, "fetched body") || !strings.Contains(res.Content, "url: http://ok.example/x") {
t.Fatalf("stub fetch wrong: %+v", res)
}
}
type stubTransport struct{ handler http.HandlerFunc }
func (s stubTransport) RoundTrip(req *http.Request) (*http.Response, error) {
rec := httptest.NewRecorder()
s.handler(rec, req)
resp := rec.Result()
resp.Request = req
return resp, nil
}
func TestFetchURLRedirectToPrivateRejected(t *testing.T) {
reg := fetchReg(FetchConfig{
Client: &http.Client{Transport: redirectTransport{to: "http://127.0.0.1/evil"}},
Resolve: fakeResolve(map[string][]net.IP{
"public.example": {net.ParseIP("93.184.216.34")},
"127.0.0.1": {net.ParseIP("127.0.0.1")},
}),
})
res := runTool(t, reg, "fetch_url", `{"url":"http://public.example/redirect"}`)
if !res.IsError {
t.Fatalf("redirect to private target must be rejected, got %+v", res)
}
}
type redirectTransport struct{ to string }
func (s redirectTransport) RoundTrip(req *http.Request) (*http.Response, error) {
rec := httptest.NewRecorder()
rec.Header().Set("Location", s.to)
rec.Code = http.StatusFound
resp := rec.Result()
resp.Request = req
return resp, nil
}
func TestFetchNotRegisteredByDefault(t *testing.T) {
reg := WorkspaceTools(t.TempDir())
for _, d := range reg.Decls() {
if d.Name == "fetch_url" {
t.Fatal("fetch_url must not register without explicit FetchConfig")
}
}
}
+169
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package tools
import (
"context"
"encoding/json"
"fmt"
"os"
"path/filepath"
"regexp"
"sort"
"strings"
)
const maxGlobResults = 500
type globTool struct{ root string }
func (t *globTool) Name() string { return "glob" }
func (t *globTool) Description() string {
return "Find workspace files matching a glob pattern (** crosses directories, * within one segment). Returns up to 500 relative paths."
}
func (t *globTool) Parameters() json.RawMessage {
return json.RawMessage(`{"type":"object","required":["pattern"],"properties":{"pattern":{"type":"string","description":"glob such as **/*.go or docs/*.md"}}}`)
}
func (t *globTool) Execute(_ context.Context, args json.RawMessage) (Result, error) {
rel, err := readArg(args, "pattern")
if err != nil {
return Result{}, err
}
if strings.TrimSpace(rel) == "" {
return Result{Content: "pattern is empty", IsError: true}, nil
}
re, err := globRegexp(rel)
if err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
var matches []string
capped := false
err = filepath.WalkDir(t.root, func(path string, d os.DirEntry, walkErr error) error {
if walkErr != nil {
return nil
}
r, rerr := filepath.Rel(t.root, path)
if rerr != nil {
return nil
}
r = filepath.ToSlash(r)
if r == "." {
return nil
}
if d.IsDir() {
// 目录命中以 / 结尾,供模型分辨文件与目录。
if re.MatchString(r + "/") {
if len(matches) < maxGlobResults {
matches = append(matches, r+"/")
} else {
capped = true
}
}
return nil
}
if re.MatchString(r) {
if len(matches) < maxGlobResults {
matches = append(matches, r)
} else {
capped = true
}
}
return nil
})
if err != nil {
return Result{Content: err.Error(), IsError: true}, nil
}
if len(matches) == 0 {
return Result{Content: "no matches"}, nil
}
sort.Strings(matches)
out := strings.Join(matches, "\n")
if capped {
out += fmt.Sprintf("\n(showing first %d matches)", maxGlobResults)
}
return Result{Content: out}, nil
}
// globRegexp 把受限 glob(** 跨目录、* 单段、? 单字符,其余按字面)编译为正则。
// 尾段单独的 ** 匹配其下全部内容(文件与目录);中段的 ** 匹配零或多层目录。
// 不支持字符类与分组,避免与正则语义混淆。
func globRegexp(pattern string) (*regexp.Regexp, error) {
var b strings.Builder
b.WriteString("^")
segs := strings.Split(filepath.ToSlash(pattern), "/")
prevStarStar := false
for i, seg := range segs {
// 前一段是独立的 **(非尾段)时,其 (?:[^/]+/)* 已含目录斜杠,
// 零层目录的场景不需要再补一个分隔符。
if i > 0 && !prevStarStar {
b.WriteString("/")
}
prevStarStar = false
if seg == "**" {
if i == len(segs)-1 {
// 尾段 **:匹配其余全部路径(文件与目录)。
b.WriteString(".+")
} else {
b.WriteString("(?:[^/]+/)*")
prevStarStar = true
}
continue
}
for _, part := range splitDoubleStar(seg) {
if part == "**" {
b.WriteString("[^/]*")
continue
}
for _, ch := range part {
switch ch {
case '*':
b.WriteString("[^/]*")
case '?':
b.WriteString("[^/]")
default:
b.WriteString(regexp.QuoteMeta(string(ch)))
}
}
}
}
b.WriteString("$")
return regexp.Compile(b.String())
}
// splitDoubleStar 把段内混用的 ** 与字面部分切开(如 "a**b")。
func splitDoubleStar(seg string) []string {
var out []string
cur := strings.Builder{}
for i := 0; i < len(seg); i++ {
if i+1 < len(seg) && seg[i] == '*' && seg[i+1] == '*' {
if cur.Len() > 0 {
out = append(out, cur.String())
cur.Reset()
}
out = append(out, "**")
i++
continue
}
cur.WriteByte(seg[i])
}
if cur.Len() > 0 {
out = append(out, cur.String())
}
return out
}
// globMatcher 是文件名级 glob(filepath.Match 语义),供 grep include 过滤用。
type globMatcher struct{ pattern string }
func newGlobMatcher(pattern string) (*globMatcher, error) {
if _, err := filepath.Match(pattern, "probe"); err != nil {
return nil, fmt.Errorf("invalid include pattern %q: %w", pattern, err)
}
return &globMatcher{pattern: pattern}, nil
}
func (m *globMatcher) Match(name string) bool {
ok, _ := filepath.Match(m.pattern, name)
return ok
}
+71
View File
@@ -61,6 +61,75 @@ func (r *Registry) Decls() []Decl {
return out
}
// Restrict 把注册表收窄到 allow 列出的工具(工具策略的唯一执行点之一:
// 调用方声明 allowlist,注册表执行收窄)。条目支持两种形式:
//
// 精确名(read_file)或命名空间通配(mcp__github__*,匹配该前缀全部工具)。
//
// 任一条目未命中任何已注册工具时返回错误(fail-closed,不静默忽略配置错误)。
// 空列表不收窄;可重复调用(在已收窄集合上继续求交)。
func (r *Registry) Restrict(allow []string) error {
if len(allow) == 0 {
return nil
}
exact := make(map[string]bool, len(allow))
prefixes := make([]string, 0)
for _, entry := range allow {
if name, ok := strings.CutSuffix(entry, "*"); ok {
prefixes = append(prefixes, name)
continue
}
exact[entry] = true
}
var unknown []string
for _, name := range allow {
if _, ok := strings.CutSuffix(name, "*"); ok {
continue
}
if _, ok := r.tools[name]; !ok {
unknown = append(unknown, name)
}
}
for _, p := range prefixes {
if !r.hasPrefix(p) {
unknown = append(unknown, p+"*")
}
}
if len(unknown) > 0 {
return fmt.Errorf("tool allowlist names not registered: %s", strings.Join(unknown, ", "))
}
keep := func(name string) bool {
if exact[name] {
return true
}
for _, p := range prefixes {
if strings.HasPrefix(name, p) {
return true
}
}
return false
}
var order []string
for _, name := range r.order {
if keep(name) {
order = append(order, name)
} else {
delete(r.tools, name)
}
}
r.order = order
return nil
}
func (r *Registry) hasPrefix(prefix string) bool {
for _, name := range r.order {
if strings.HasPrefix(name, prefix) {
return true
}
}
return false
}
// Decl is the schema view of a tool.
type Decl struct {
Name string
@@ -182,8 +251,10 @@ func WorkspaceTools(root string) *Registry {
r.Register(&readFile{root: root})
r.Register(&writeFile{root: root})
r.Register(&editFile{root: root})
r.Register(&multiEditTool{root: root})
r.Register(&listDir{root: root})
r.Register(&grepTool{root: root})
r.Register(&globTool{root: root})
return r
}
+71
View File
@@ -0,0 +1,71 @@
package tools
import (
"context"
"strings"
"testing"
)
func TestRegistryRestrictNarrowsDeclsAndExecute(t *testing.T) {
dir := t.TempDir()
reg := WorkspaceTools(dir)
if err := reg.Restrict([]string{"read_file", "list_dir"}); err != nil {
t.Fatal(err)
}
names := make(map[string]bool)
for _, d := range reg.Decls() {
names[d.Name] = true
}
if len(names) != 2 || !names["read_file"] || !names["list_dir"] {
t.Fatalf("want read_file+list_dir only, got %v", names)
}
// 被收窄掉的工具体现为 unknown tool。
res := reg.Execute(context.Background(), "write_file", []byte(`{"path":"a.md","content":"x"}`))
if !res.IsError || !strings.Contains(res.Content, "unknown tool") {
t.Fatalf("want unknown tool error, got %+v", res)
}
// 保留的工具可用。
res = reg.Execute(context.Background(), "list_dir", []byte(`{}`))
if res.IsError {
t.Fatalf("list_dir should still work: %+v", res)
}
}
func TestRegistryRestrictFailsClosedOnUnknownNames(t *testing.T) {
reg := WorkspaceTools(t.TempDir())
err := reg.Restrict([]string{"read_file", "not_a_tool"})
if err == nil || !strings.Contains(err.Error(), "not_a_tool") {
t.Fatalf("want fail-closed error naming the unknown tool, got %v", err)
}
// 失败后注册表不被部分修改。
if len(reg.Decls()) != 7 {
t.Fatalf("registry should be untouched after failed restrict, got %d tools", len(reg.Decls()))
}
}
func TestRegistryRestrictEmptyKeepsAll(t *testing.T) {
reg := WorkspaceTools(t.TempDir())
if err := reg.Restrict(nil); err != nil {
t.Fatal(err)
}
if len(reg.Decls()) != 7 {
t.Fatalf("nil allowlist should keep all tools, got %d", len(reg.Decls()))
}
}
func TestRegistryRestrictIsIdempotentIntersection(t *testing.T) {
reg := WorkspaceTools(t.TempDir())
if err := reg.Restrict([]string{"read_file", "list_dir"}); err != nil {
t.Fatal(err)
}
// 二次收窄若点名已被移除的工具,属调用方配置错误:fail-closed。
if err := reg.Restrict([]string{"read_file", "write_file"}); err == nil || !strings.Contains(err.Error(), "write_file") {
t.Fatalf("second restrict naming a removed tool must fail-closed, got %v", err)
}
if err := reg.Restrict([]string{"read_file"}); err != nil {
t.Fatal(err)
}
if len(reg.Decls()) != 1 || reg.Decls()[0].Name != "read_file" {
t.Fatalf("want intersection to keep read_file only, got %+v", reg.Decls())
}
}