1package agent
2
3import (
4 "context"
5 "fmt"
6 "os"
7 "path/filepath"
8 "runtime"
9 "strings"
10
11 zotdocs "github.com/patriceckhart/zot"
12 "github.com/patriceckhart/zot/packages/agent/skills"
13 "github.com/patriceckhart/zot/packages/agent/tools"
14 "github.com/patriceckhart/zot/packages/core"
15 "github.com/patriceckhart/zot/packages/provider"
16)
17
18// Resolved is the effective configuration after merging CLI, config, defaults.
19type Resolved struct {
20 Provider string
21 Model string
22 Credential string // api key or oauth access token
23 AuthMethod string // "apikey" | "oauth" | "" (no credential yet)
24 AccountID string // ChatGPT account id (for openai oauth), "" otherwise
25 BaseURL string
26 CWD string
27 Reasoning string
28
29 ToolRegistry core.Registry
30 ToolSummary []ToolSummary
31 SystemPrompt string
32 MaxSteps int
33 Sandbox *tools.Sandbox
34
35 // SkillTool is the on-demand skill loader registered with the
36 // agent's tool registry, or nil if no SKILL.md files were
37 // discovered. Exposed so the tui can list / preview skills.
38 SkillTool *skills.Tool
39
40 // Bookkeeping for MergeExtensionTools. Captured at Resolve time
41 // so the system prompt can be rebuilt later without re-running
42 // resolve.
43 systemAppend []string
44 systemCustom string
45 toolDescriptions map[string]string
46}
47
48// HasCredential reports whether a credential was resolved.
49func (r Resolved) HasCredential() bool { return r.Credential != "" }
50
51// MergeExtensionTools folds every tool registered by an extension
52// into r's ToolRegistry and re-renders the system prompt's tool
53// summary so the model sees both built-in and extension tools.
54//
55// Idempotent: calling twice with the same manager state has no
56// effect on the second pass (existing names are preserved). Built-in
57// tools always win on conflict.
58func (r *Resolved) MergeExtensionTools(mgr ExtensionToolSource) {
59 if mgr == nil {
60 return
61 }
62 infos := mgr.Tools()
63 if len(infos) == 0 {
64 return
65 }
66 changed := false
67 for _, info := range infos {
68 if _, exists := r.ToolRegistry[info.Name]; exists {
69 continue
70 }
71 r.ToolRegistry[info.Name] = mgr.NewExtensionTool(info)
72 changed = true
73 }
74 if !changed {
75 return
76 }
77 // Re-render the system prompt with the merged tool list. Skill
78 // addendum is preserved by walking the existing append slice.
79 append_ := r.systemAppend
80 r.SystemPrompt = BuildSystemPrompt(SystemPromptOpts{
81 CWD: r.CWD,
82 Tools: toolSummariesFromRegistry(r.ToolRegistry, r.toolDescriptions),
83 Custom: r.systemCustom,
84 Append: append_,
85 ZotDocsDir: filepath.Join(ZotHome(), "docs"),
86 })
87}
88
89// ExtensionToolSource is the slice of the extension manager that
90// MergeExtensionTools needs. Lives here as an interface so the
91// build package doesn't import packages/agent/extensions (which
92// imports core, which imports... avoid the cycle).
93type ExtensionToolSource interface {
94 Tools() []ExtensionToolInfo
95 NewExtensionTool(info ExtensionToolInfo) core.Tool
96}
97
98// ExtensionToolInfo mirrors extensions.ToolInfo so we can declare
99// ExtensionToolSource here without importing the extensions
100// package. The cli wires a tiny adapter to bridge them.
101type ExtensionToolInfo struct {
102 Extension string
103 Name string
104 Description string
105 Schema []byte
106}
107
108// toolSummariesFromRegistry rebuilds the system-prompt tool list
109// from a (possibly extended) registry, using cached descriptions for
110// the human-readable summary text.
111func toolSummariesFromRegistry(reg core.Registry, cached map[string]string) []ToolSummary {
112 out := make([]ToolSummary, 0, len(reg))
113 for name, t := range reg {
114 desc := t.Description()
115 if d, ok := cached[name]; ok && d != "" {
116 desc = d
117 }
118 out = append(out, ToolSummary{Name: name, Description: desc})
119 }
120 return out
121}
122
123// defaultModelForProvider returns the model id zot prefers when the
124// caller didn't pick one. Mirrors the per-provider switch used at
125// multiple points in Resolve; centralised so the unknown-model
126// recovery path and the no-model-configured path can't drift.
127//
128// Returns the empty string for "ollama", which has no built-in
129// default — the caller is expected to special-case ollama and
130// error or use whatever the user passed.
131func defaultModelForProvider(prov string) string {
132 switch prov {
133 case "openai":
134 return "gpt-5"
135 case "openai-codex":
136 return "gpt-5.5"
137 case "openai-responses":
138 return "gpt-5"
139 case "kimi":
140 return "kimi-for-coding"
141 case "deepseek":
142 return "deepseek-v4-pro"
143 case "google":
144 return "gemini-2.5-pro"
145 case "ollama":
146 return ""
147 case "moonshotai", "moonshotai-cn":
148 return "kimi-k2.6"
149 case "cerebras":
150 return "qwen-3-235b-a22b-instruct-2507"
151 case "groq":
152 return "llama-3.3-70b-versatile"
153 case "xai":
154 return "grok-code-fast-1"
155 case "together":
156 return "Qwen/Qwen3-Coder-480B-A35B-Instruct"
157 case "huggingface":
158 return "moonshotai/Kimi-K2-Instruct"
159 case "openrouter":
160 return "anthropic/claude-sonnet-4.5"
161 case "mistral":
162 return "mistral-large-latest"
163 case "zai":
164 return "glm-4.7"
165 case "xiaomi", "xiaomi-token-plan-ams", "xiaomi-token-plan-cn", "xiaomi-token-plan-sgp":
166 return "mimo-v2.5"
167 case "minimax", "minimax-cn":
168 return "MiniMax-M2.7"
169 case "fireworks":
170 return "accounts/fireworks/models/kimi-k2p6"
171 case "vercel-ai-gateway":
172 return "anthropic/claude-sonnet-4.5"
173 case "opencode":
174 return "claude-sonnet-4-5"
175 case "opencode-go":
176 return "kimi-k2.6"
177 case "amazon-bedrock":
178 return "anthropic.claude-sonnet-4-5-20250929-v1:0"
179 case "google-vertex":
180 return "gemini-2.5-pro"
181 case "azure-openai-responses":
182 return "gpt-5"
183 case "github-copilot":
184 return "claude-sonnet-4.5"
185 default:
186 return provider.DefaultModel.ID
187 }
188}
189
190// knownProviders is the set of provider ids zot recognises. Used by
191// Resolve to validate args.Provider, by extension-callers, and by the
192// auto-fallback logic that picks any logged-in provider when the user's
193// preferred one has no credentials.
194var knownProviders = []string{
195 "anthropic", "openai", "openai-codex", "openai-responses", "kimi", "deepseek", "google", "ollama",
196 "moonshotai", "moonshotai-cn",
197 "cerebras", "groq", "xai", "together", "huggingface", "openrouter",
198 "mistral", "zai",
199 "xiaomi", "xiaomi-token-plan-ams", "xiaomi-token-plan-cn", "xiaomi-token-plan-sgp",
200 "minimax", "minimax-cn",
201 "fireworks", "vercel-ai-gateway",
202 "opencode", "opencode-go",
203 "amazon-bedrock", "google-vertex", "azure-openai-responses",
204 "github-copilot", "cloudflare-workers-ai", "cloudflare-ai-gateway",
205}
206
207func isKnownProvider(name string) bool {
208 for _, p := range knownProviders {
209 if p == name {
210 return true
211 }
212 }
213 return false
214}
215
216// providerAliases maps common short / alternate provider names to the
217// canonical id in knownProviders. Users (and other agents) reach for
218// "bedrock" or "vertex" far more naturally than the fully-qualified
219// "amazon-bedrock" / "google-vertex"; without this mapping an alias is
220// treated as an unknown provider and Resolve silently falls back to
221// anthropic, producing a misleading "no credential for anthropic" error
222// after the user explicitly picked, say, bedrock.
223var providerAliases = map[string]string{
224 "bedrock": "amazon-bedrock",
225 "aws-bedrock": "amazon-bedrock",
226 "amazon": "amazon-bedrock",
227 "vertex": "google-vertex",
228 "gcp-vertex": "google-vertex",
229 "gemini": "google",
230 "googleai": "google",
231 "google-ai": "google",
232 "azure": "azure-openai-responses",
233 "azure-openai": "azure-openai-responses",
234 "copilot": "github-copilot",
235 "github": "github-copilot",
236 "codex": "openai-codex",
237 "moonshot": "moonshotai",
238 "kimi-code": "kimi",
239 "ai-gateway": "vercel-ai-gateway",
240 "vercel": "vercel-ai-gateway",
241 "cloudflare": "cloudflare-workers-ai",
242 "workers-ai": "cloudflare-workers-ai",
243 "hf": "huggingface",
244}
245
246// canonicalProvider normalises a user-supplied provider name: trims
247// surrounding whitespace, lower-cases it, and resolves any known alias
248// to its canonical id. Unknown names are returned trimmed/lower-cased
249// and unchanged so the existing unknown-provider handling still runs.
250func canonicalProvider(name string) string {
251 n := strings.ToLower(strings.TrimSpace(name))
252 if n == "" {
253 return n
254 }
255 if canon, ok := providerAliases[n]; ok {
256 return canon
257 }
258 return n
259}
260
261// Resolve merges args, config, and env into a Resolved set.
262//
263// Unlike the earlier version, Resolve NEVER returns an error for
264// missing credentials: the TUI can start without them and launch a
265// login flow. requireCred controls whether missing credentials are a
266// hard error (used by print/json modes).
267func Resolve(args Args, requireCred bool) (Resolved, error) {
268 cfg, _ := LoadConfig()
269
270 // User-requested provider (explicit > config > default).
271 // Normalise common aliases (e.g. "bedrock" -> "amazon-bedrock")
272 // before validation so an alias is never mistaken for an unknown
273 // provider and silently downgraded to anthropic.
274 argProvider := canonicalProvider(args.Provider)
275 provName := firstNonEmpty(argProvider, canonicalProvider(cfg.Provider), "anthropic")
276 if !isKnownProvider(provName) {
277 // Unknown provider (maybe removed or renamed). Fall back to
278 // the first provider that has credentials, or anthropic.
279 provName = "anthropic"
280 if _, _, _, err := ResolveCredentialFull("openai", ""); err == nil {
281 provName = "openai"
282 }
283 if _, _, _, err := ResolveCredentialFull("openai-codex", ""); err == nil {
284 provName = "openai-codex"
285 }
286 if _, _, _, err := ResolveCredentialFull("kimi", ""); err == nil {
287 provName = "kimi"
288 }
289 if _, _, _, err := ResolveCredentialFull("deepseek", ""); err == nil {
290 provName = "deepseek"
291 }
292 if _, _, _, err := ResolveCredentialFull("anthropic", ""); err == nil {
293 provName = "anthropic"
294 }
295 // Reset the saved config so this doesn't keep happening.
296 cfg.Provider = provName
297 cfg.Model = ""
298 _ = SaveConfig(cfg)
299 }
300
301 var (
302 cred string
303 method string
304 accountID string
305 credErr error
306 )
307 if provName == "ollama" {
308 cred = firstNonEmpty(args.APIKey, "ollama")
309 method = "apikey"
310 } else {
311 cred, method, accountID, credErr = ResolveCredentialFull(provName, args.APIKey)
312 }
313
314 // If the user did NOT explicitly pick a provider and the default one
315 // has no credentials, auto-fall-back to whichever provider is actually
316 // logged in. That way running plain `zot` after `/login` (any provider)
317 // never shows a "not logged in" banner.
318 userPickedProvider := args.Provider != ""
319 if credErr != nil && !userPickedProvider && provName != "ollama" {
320 for _, other := range []string{"anthropic", "openai", "openai-codex", "kimi", "deepseek", "google"} {
321 if other == provName {
322 continue
323 }
324 if c, m, a, err := ResolveCredentialFull(other, args.APIKey); err == nil {
325 provName = other
326 cred, method, accountID, credErr = c, m, a, err
327 break
328 }
329 }
330 }
331
332 model := firstNonEmpty(args.Model, cfg.Model)
333 if model == "" {
334 if provName == "ollama" {
335 return Resolved{}, fmt.Errorf("ollama requires --model (e.g. --model llama3)")
336 }
337 model = defaultModelForProvider(provName)
338 }
339 // If the resolved model belongs to a different provider (e.g. config
340 // says gpt-5 but we fell back to anthropic), pick that provider's default.
341 if provName != "ollama" {
342 if m, err := provider.FindModel("", model); err == nil && m.Provider != provName {
343 model = defaultModelForProvider(provName)
344 }
345 }
346 resolvedModel, err := provider.FindModel(provName, model)
347 if err != nil && provName == "ollama" {
348 // ollama is intentionally open-catalogue: any model id the
349 // local server understands is valid, even if not in the
350 // baked-in catalog.
351 resolvedModel = provider.Model{
352 Provider: "ollama",
353 ID: model,
354 DisplayName: model,
355 ContextWindow: 32768,
356 MaxOutput: 8192,
357 BaseURL: args.BaseURL,
358 Source: "ollama",
359 }
360 err = nil
361 }
362 if err != nil {
363 // The model the user (or persisted config) asked for is no
364 // longer in the active catalogue — they probably removed it
365 // from their models.json or upgraded zot and the id changed.
366 // Refusing to launch is the wrong move: it strands the user
367 // with no way to even open the TUI and pick a new model.
368 // Fall back to the provider's default, warn on stderr, and,
369 // when the stale id came from the persisted config (not an
370 // explicit --model flag), repair the config so the warning
371 // doesn't repeat on every launch.
372 fallback := defaultModelForProvider(provName)
373 fm, ferr := provider.FindModel(provName, fallback)
374 if ferr != nil {
375 // Even the provider default is gone (catastrophic
376 // catalogue trim). Last resort: any model on this
377 // provider, then the global DefaultModel.
378 if candidates := provider.ModelsForProvider(provName); len(candidates) > 0 {
379 fm = candidates[0]
380 ferr = nil
381 } else {
382 fm = provider.DefaultModel
383 ferr = nil
384 }
385 }
386 fmt.Fprintf(os.Stderr,
387 "zot: model %q is not in the active catalogue; using %q instead. Pick a different model with --model or /model.\n",
388 model, fm.ID)
389 if args.Model == "" && cfg.Model == model {
390 cfg.Model = fm.ID
391 _ = SaveConfig(cfg)
392 }
393 resolvedModel = fm
394 model = fm.ID
395 }
396
397 // If the model defines a base URL (e.g. local ollama) and the
398 // user didn't pass --base-url, use the model's URL. For ollama,
399 // keep http://localhost:11434 as a fallback only after the model
400 // metadata has had a chance to provide a custom baseUrl.
401 if args.BaseURL == "" && resolvedModel.BaseURL != "" {
402 args.BaseURL = resolvedModel.BaseURL
403 }
404 if args.BaseURL == "" && provName == "ollama" {
405 args.BaseURL = "http://localhost:11434"
406 }
407
408 // If the model has a base URL, credentials are optional (local
409 // models like ollama don't need real API keys).
410 if resolvedModel.BaseURL != "" && credErr != nil {
411 cred = "ollama"
412 credErr = nil
413 requireCred = false
414 }
415
416 if credErr != nil && requireCred {
417 return Resolved{}, fmt.Errorf("%w; set %s_API_KEY, pass --api-key, or run `zot` and /login",
418 credErr, envVarName(provName))
419 }
420
421 sandbox := tools.NewSandbox(args.CWD)
422 reg := buildToolRegistry(args, args.CWD, sandbox)
423
424 docsDir, _ := zotdocs.EnsureInstalled(ZotHome())
425
426 // Skill discovery: scan project + global locations + built-in
427 // skills shipped with the binary. If any are found, register
428 // the on-demand `skill` loader tool plus a system-prompt
429 // manifest so the model knows what's available.
430 //
431 // --no-skill bypasses the entire mechanism: no manifest in the
432 // system prompt, no `skill` tool in the registry. Useful for a
433 // clean-room run with zero extra context biasing the model.
434 var (
435 discovered []*skills.Skill
436 skillTool *skills.Tool
437 skillAddendum string
438 )
439 if !args.NoSkill {
440 homeDir, _ := os.UserHomeDir()
441 discovered, _ = skills.Discover(ZotHome(), args.CWD, homeDir, args.WithSkills)
442 if len(discovered) > 0 {
443 skillTool = skills.NewTool(discovered)
444 reg[skillTool.Name()] = skillTool
445 skillAddendum = skills.SystemPromptAddendum(discovered)
446 }
447 }
448 _ = skillTool
449
450 summaries := toolSummaries(reg, args)
451
452 append_ := append([]string(nil), args.AppendSystemPrompt...)
453 if agentsAddendum := readAgentsContext(args.CWD, ZotHome()); agentsAddendum != "" {
454 append_ = append(append_, agentsAddendum)
455 }
456 if skillAddendum != "" {
457 append_ = append(append_, skillAddendum)
458 }
459 if AutoSwarmEnabled() {
460 append_ = append(append_, AutoSwarmSystemAddendum)
461 }
462
463 // Custom system prompt resolution order:
464 // 1. --system-prompt flag (highest priority; ad-hoc per run)
465 // 2. $ZOT_HOME/SYSTEM.md (persistent user override)
466 // 3. built-in default (defaultIdentity + defaultGuidelines)
467 custom := args.SystemPrompt
468 if custom == "" {
469 custom = readUserSystemPrompt(ZotHome())
470 }
471
472 sys := BuildSystemPrompt(SystemPromptOpts{
473 CWD: args.CWD,
474 Tools: summaries,
475 Custom: custom,
476 Append: append_,
477 ZotDocsDir: docsDir,
478 })
479
480 reasoning := provider.NormalizeReasoning(firstNonEmpty(args.Reasoning, cfg.Reasoning))
481
482 max := args.MaxSteps // 0 = unlimited
483
484 return Resolved{
485 Provider: provName,
486 Model: model,
487 Credential: cred,
488 AuthMethod: method,
489 AccountID: accountID,
490 BaseURL: args.BaseURL,
491 CWD: args.CWD,
492 Reasoning: reasoning,
493 ToolRegistry: reg,
494 ToolSummary: summaries,
495 SystemPrompt: sys,
496 MaxSteps: max,
497 Sandbox: sandbox,
498 SkillTool: skillTool,
499 systemAppend: append_,
500 systemCustom: custom,
501 toolDescriptions: descMapFromSummaries(summaries),
502 }, nil
503}
504
505// readUserSystemPrompt looks for $ZOT_HOME/SYSTEM.md and returns its
506// trimmed contents, or "" when the file is missing / unreadable /
507// empty. Errors are intentionally swallowed: the file is optional,
508// and any failure to read it should fall back to the built-in
509// default system prompt rather than crash the run.
510func readUserSystemPrompt(zotHome string) string {
511 if zotHome == "" {
512 return ""
513 }
514 path := filepath.Join(zotHome, "SYSTEM.md")
515 raw, err := os.ReadFile(path)
516 if err != nil {
517 return ""
518 }
519 return strings.TrimSpace(string(raw))
520}
521
522// readAgentsContext loads optional AGENTS.md instruction files. No
523// default file is created or required: zot only includes files that
524// already exist. Global instructions ($ZOT_HOME/AGENTS.md) come first,
525// followed by project instructions from the top-most parent down to cwd.
526func readAgentsContext(cwd, zotHome string) string {
527 type contextFile struct {
528 path string
529 content string
530 }
531 var files []contextFile
532 seen := map[string]bool{}
533 add := func(path string) {
534 if path == "" {
535 return
536 }
537 abs, err := filepath.Abs(path)
538 if err == nil {
539 path = abs
540 }
541 if seen[path] {
542 return
543 }
544 raw, err := os.ReadFile(path)
545 if err != nil {
546 return
547 }
548 content := strings.TrimSpace(string(raw))
549 if content == "" {
550 return
551 }
552 seen[path] = true
553 files = append(files, contextFile{path: path, content: content})
554 }
555 addFirstFromDir := func(dir string) {
556 if dir == "" {
557 return
558 }
559 for _, name := range []string{"AGENTS.md", "AGENTS.MD"} {
560 path := filepath.Join(dir, name)
561 if _, err := os.Stat(path); err == nil {
562 add(path)
563 return
564 }
565 }
566 }
567
568 addFirstFromDir(zotHome)
569
570 if cwd != "" {
571 abs, err := filepath.Abs(cwd)
572 if err == nil {
573 cwd = abs
574 }
575 var dirs []string
576 for dir := filepath.Clean(cwd); ; dir = filepath.Dir(dir) {
577 dirs = append(dirs, dir)
578 parent := filepath.Dir(dir)
579 if parent == dir {
580 break
581 }
582 }
583 for i := len(dirs) - 1; i >= 0; i-- {
584 addFirstFromDir(dirs[i])
585 }
586 }
587
588 if len(files) == 0 {
589 return ""
590 }
591 var sb strings.Builder
592 sb.WriteString("Project context instructions loaded from AGENTS.md files. Follow them when working in this repository. Later files are more specific and may override earlier ones.\n")
593 for _, f := range files {
594 fmt.Fprintf(&sb, "\n## %s\n\n%s\n", f.path, f.content)
595 }
596 return strings.TrimSpace(sb.String())
597}
598
599// descMapFromSummaries indexes the human-readable descriptions for
600// the renderToolsSection rebuild path.
601func descMapFromSummaries(summaries []ToolSummary) map[string]string {
602 out := make(map[string]string, len(summaries))
603 for _, s := range summaries {
604 out[s.Name] = s.Description
605 }
606 return out
607}
608
609// NewClient returns a provider.Client for r, choosing the auth mode
610// based on r.AuthMethod. Panics if no credential is present; callers
611// must check HasCredential() first.
612func (r Resolved) NewClient() provider.Client {
613 if !r.HasCredential() {
614 panic("NewClient called without credential; check HasCredential first")
615 }
616 switch r.Provider {
617 case "ollama":
618 return provider.NewOpenAI(r.Credential, r.BaseURL)
619 case "kimi":
620 // kimi-coding speaks anthropic-messages on api.kimi.com/coding.
621 // Subscription OAuth (refreshed) wraps the same Anthropic-shaped client.
622 inner := provider.NewKimiCodingWithHeaders(r.Credential, r.BaseURL, kimiCodeHeaders())
623 if r.AuthMethod == "oauth" {
624 return r.wrapWithRefresh(inner)
625 }
626 return inner
627 case "moonshotai":
628 return provider.NewMoonshot(r.Credential, r.BaseURL)
629 case "moonshotai-cn":
630 return provider.NewMoonshotCN(r.Credential, r.BaseURL)
631 case "deepseek":
632 return provider.NewDeepSeek(r.Credential, r.BaseURL)
633 case "openai":
634 return provider.NewOpenAI(r.Credential, r.BaseURL)
635 case "openai-codex":
636 inner := provider.NewOpenAICodex(r.Credential, r.AccountID, r.BaseURL)
637 return r.wrapWithRefresh(inner)
638 case "openai-responses":
639 // Public OpenAI Responses API (api.openai.com/v1/responses) via
640 // API key. Separate provider from `openai` (Chat Completions) and
641 // from `openai-codex` (ChatGPT subscription OAuth).
642 return provider.NewOpenAIResponses(r.Credential, r.BaseURL)
643 case "google":
644 return provider.NewGemini(r.Credential, r.BaseURL)
645 case "cerebras":
646 return provider.NewCerebras(r.Credential, r.BaseURL)
647 case "groq":
648 return provider.NewGroq(r.Credential, r.BaseURL)
649 case "xai":
650 return provider.NewXAI(r.Credential, r.BaseURL)
651 case "together":
652 return provider.NewTogether(r.Credential, r.BaseURL)
653 case "huggingface":
654 return provider.NewHuggingFace(r.Credential, r.BaseURL)
655 case "openrouter":
656 return provider.NewOpenRouter(r.Credential, r.BaseURL)
657 case "zai":
658 return provider.NewZAI(r.Credential, r.BaseURL)
659 case "xiaomi":
660 return provider.NewXiaomi(r.Credential, r.BaseURL)
661 case "xiaomi-token-plan-ams":
662 return provider.NewXiaomiTokenPlan("ams", r.Credential, r.BaseURL)
663 case "xiaomi-token-plan-cn":
664 return provider.NewXiaomiTokenPlan("cn", r.Credential, r.BaseURL)
665 case "xiaomi-token-plan-sgp":
666 return provider.NewXiaomiTokenPlan("sgp", r.Credential, r.BaseURL)
667 case "opencode":
668 return provider.NewOpenCode(r.Credential, r.BaseURL)
669 case "opencode-go":
670 return provider.NewOpenCodeGo(r.Credential, r.BaseURL)
671 case "minimax":
672 return provider.NewMinimaxAnthropic(r.Credential, r.BaseURL)
673 case "minimax-cn":
674 return provider.NewMinimaxCNAnthropic(r.Credential, r.BaseURL)
675 case "fireworks":
676 return provider.NewFireworksAnthropic(r.Credential, r.BaseURL)
677 case "vercel-ai-gateway":
678 return provider.NewVercelGatewayAnthropic(r.Credential, r.BaseURL)
679 case "mistral":
680 return provider.NewMistral(r.Credential, r.BaseURL)
681 case "amazon-bedrock":
682 return provider.NewBedrock(r.Credential, r.BaseURL)
683 case "google-vertex":
684 return provider.NewGoogleVertex(r.Credential, r.BaseURL)
685 case "azure-openai-responses":
686 return provider.NewAzureOpenAIResponses(r.Credential, r.BaseURL)
687 case "github-copilot":
688 return provider.NewGithubCopilot(r.Credential, r.BaseURL)
689 case "cloudflare-workers-ai":
690 return provider.NewCloudflareWorkersAI(r.Credential, r.BaseURL)
691 case "cloudflare-ai-gateway":
692 return provider.NewCloudflareAIGateway(r.Credential, r.BaseURL)
693 default:
694 if r.AuthMethod == "oauth" {
695 inner := provider.NewAnthropicOAuth(r.Credential, r.BaseURL)
696 return r.wrapWithRefresh(inner)
697 }
698 return provider.NewAnthropic(r.Credential, r.BaseURL)
699 }
700}
701
702// wrapWithRefresh wraps an OAuth client so the access token is
703// refreshed automatically before each API call. Without this, long
704// sessions (hours) silently fail when the 1-hour token expires.
705func (r Resolved) wrapWithRefresh(inner provider.Client) provider.Client {
706 provName := r.Provider
707 tokenProvider := provName
708 if provName == "openai-codex" {
709 tokenProvider = "openai"
710 }
711 baseURL := r.BaseURL
712 accountID := r.AccountID
713
714 refreshFn := func(ctx context.Context) (string, error) {
715 tok, err := refreshIfExpired(tokenProvider, loadOAuthToken(tokenProvider))
716 if err != nil {
717 return "", err
718 }
719 return tok.AccessToken, nil
720 }
721
722 factory := func(token string) provider.Client {
723 switch provName {
724 case "openai-codex":
725 return provider.NewOpenAICodex(token, accountID, baseURL)
726 case "kimi":
727 // anthropic-messages on api.kimi.com/coding.
728 return provider.NewKimiCodingWithHeaders(token, baseURL, kimiCodeHeaders())
729 default:
730 return provider.NewAnthropicOAuth(token, baseURL)
731 }
732 }
733
734 return provider.NewRefreshingClient(inner, refreshFn, factory)
735}
736
737// UseSandbox replaces the sandbox pointer that every tool in r's
738// registry references. Used to keep the /jail state stable across
739// agent rebuilds (e.g. /login, /model switching providers).
740func (r *Resolved) UseSandbox(s *tools.Sandbox) {
741 if s == nil || r == nil {
742 return
743 }
744 r.Sandbox = s
745 for name, t := range r.ToolRegistry {
746 switch v := t.(type) {
747 case *tools.ReadTool:
748 v.Sandbox = s
749 case *tools.WriteTool:
750 v.Sandbox = s
751 case *tools.EditTool:
752 v.Sandbox = s
753 case *tools.BashTool:
754 v.Sandbox = s
755 }
756 _ = name
757 }
758}
759
760// NewAgent constructs a core.Agent from r. Requires a credential.
761func (r Resolved) NewAgent() *core.Agent {
762 a := core.NewAgent(r.NewClient(), r.Model, r.SystemPrompt, r.ToolRegistry)
763 a.MaxSteps = r.MaxSteps
764 a.Reasoning = r.Reasoning
765 return a
766}
767
768func buildToolRegistry(args Args, cwd string, sandbox *tools.Sandbox) core.Registry {
769 if args.NoTools {
770 return core.Registry{}
771 }
772 all := map[string]core.Tool{
773 "read": &tools.ReadTool{CWD: cwd, Sandbox: sandbox},
774 "write": &tools.WriteTool{CWD: cwd, Sandbox: sandbox},
775 "edit": &tools.EditTool{CWD: cwd, Sandbox: sandbox},
776 "bash": &tools.BashTool{CWD: cwd, Sandbox: sandbox},
777 }
778 reg := core.Registry{}
779 if len(args.Tools) == 0 {
780 for _, t := range all {
781 reg[t.Name()] = t
782 }
783 return reg
784 }
785 for _, name := range args.Tools {
786 if t, ok := all[name]; ok {
787 reg[name] = t
788 }
789 }
790 return reg
791}
792
793func toolSummaries(reg core.Registry, args Args) []ToolSummary {
794 order := []string{"read", "write", "edit", "bash"}
795 var out []ToolSummary
796 for _, name := range order {
797 if t, ok := reg[name]; ok {
798 out = append(out, ToolSummary{Name: t.Name(), Description: t.Description()})
799 }
800 }
801 return out
802}
803
804func firstNonEmpty(vals ...string) string {
805 for _, v := range vals {
806 if v != "" {
807 return v
808 }
809 }
810 return ""
811}
812
813func kimiCodeHeaders() map[string]string {
814 host, _ := os.Hostname()
815 if host == "" {
816 host = "unknown"
817 }
818 deviceID := ""
819 if home, err := os.UserHomeDir(); err == nil {
820 if b, err := os.ReadFile(filepath.Join(home, ".kimi", "device_id")); err == nil {
821 deviceID = strings.TrimSpace(string(b))
822 }
823 }
824 if deviceID == "" {
825 deviceID = "zot"
826 }
827 return map[string]string{
828 "User-Agent": "KimiCLI/1.41.0",
829 "X-Msh-Platform": "kimi_cli",
830 "X-Msh-Version": "1.41.0",
831 "X-Msh-Device-Name": host,
832 "X-Msh-Device-Model": runtime.GOOS + "-" + runtime.GOARCH,
833 "X-Msh-Os-Version": runtime.GOOS,
834 "X-Msh-Device-Id": deviceID,
835 }
836}
837
838func envVarName(provider string) string {
839 switch provider {
840 case "openai", "openai-codex", "openai-responses":
841 return "OPENAI"
842 case "kimi":
843 return "KIMI"
844 case "deepseek":
845 return "DEEPSEEK"
846 case "google":
847 return "GEMINI"
848 case "ollama":
849 return "OLLAMA"
850 case "moonshotai", "moonshotai-cn":
851 return "MOONSHOT"
852 case "groq":
853 return "GROQ"
854 case "xai":
855 return "XAI"
856 case "cerebras":
857 return "CEREBRAS"
858 case "together":
859 return "TOGETHER"
860 case "huggingface":
861 return "HF"
862 case "openrouter":
863 return "OPENROUTER"
864 case "mistral":
865 return "MISTRAL"
866 case "zai":
867 return "ZAI"
868 case "xiaomi":
869 return "XIAOMI"
870 case "xiaomi-token-plan-ams":
871 return "XIAOMI_TOKEN_PLAN_AMS"
872 case "xiaomi-token-plan-cn":
873 return "XIAOMI_TOKEN_PLAN_CN"
874 case "xiaomi-token-plan-sgp":
875 return "XIAOMI_TOKEN_PLAN_SGP"
876 case "minimax":
877 return "MINIMAX"
878 case "minimax-cn":
879 return "MINIMAX_CN"
880 case "fireworks":
881 return "FIREWORKS"
882 case "vercel-ai-gateway":
883 return "AI_GATEWAY"
884 case "opencode", "opencode-go":
885 return "OPENCODE"
886 case "github-copilot":
887 return "COPILOT_GITHUB_TOKEN"
888 case "cloudflare-workers-ai", "cloudflare-ai-gateway":
889 return "CLOUDFLARE"
890 case "amazon-bedrock":
891 return "AWS"
892 case "google-vertex":
893 return "GOOGLE_CLOUD"
894 case "azure-openai-responses":
895 return "AZURE_OPENAI"
896 default:
897 return "ANTHROPIC"
898 }
899}