1package config
2
3import (
4 "encoding/json"
5 "errors"
6 "fmt"
7 "log/slog"
8 "maps"
9 "os"
10 "path/filepath"
11 "slices"
12 "strings"
13 "sync"
14
15 "github.com/charmbracelet/crush/internal/fur/provider"
16 "github.com/charmbracelet/crush/internal/logging"
17 "github.com/invopop/jsonschema"
18)
19
20const (
21 defaultDataDirectory = ".crush"
22 defaultLogLevel = "info"
23 appName = "crush"
24
25 MaxTokensFallbackDefault = 4096
26)
27
28var defaultContextPaths = []string{
29 ".github/copilot-instructions.md",
30 ".cursorrules",
31 ".cursor/rules/",
32 "CLAUDE.md",
33 "CLAUDE.local.md",
34 "GEMINI.md",
35 "gemini.md",
36 "crush.md",
37 "crush.local.md",
38 "Crush.md",
39 "Crush.local.md",
40 "CRUSH.md",
41 "CRUSH.local.md",
42}
43
44type AgentID string
45
46const (
47 AgentCoder AgentID = "coder"
48 AgentTask AgentID = "task"
49)
50
51type ModelType string
52
53const (
54 LargeModel ModelType = "large"
55 SmallModel ModelType = "small"
56)
57
58type Model struct {
59 ID string `json:"id" jsonschema:"title=Model ID,description=Unique identifier for the model, the API model"`
60 Name string `json:"name" jsonschema:"title=Model Name,description=Display name of the model"`
61 CostPer1MIn float64 `json:"cost_per_1m_in,omitempty" jsonschema:"title=Input Cost,description=Cost per 1 million input tokens,minimum=0"`
62 CostPer1MOut float64 `json:"cost_per_1m_out,omitempty" jsonschema:"title=Output Cost,description=Cost per 1 million output tokens,minimum=0"`
63 CostPer1MInCached float64 `json:"cost_per_1m_in_cached,omitempty" jsonschema:"title=Cached Input Cost,description=Cost per 1 million cached input tokens,minimum=0"`
64 CostPer1MOutCached float64 `json:"cost_per_1m_out_cached,omitempty" jsonschema:"title=Cached Output Cost,description=Cost per 1 million cached output tokens,minimum=0"`
65 ContextWindow int64 `json:"context_window" jsonschema:"title=Context Window,description=Maximum context window size in tokens,minimum=1"`
66 DefaultMaxTokens int64 `json:"default_max_tokens" jsonschema:"title=Default Max Tokens,description=Default maximum tokens for responses,minimum=1"`
67 CanReason bool `json:"can_reason,omitempty" jsonschema:"title=Can Reason,description=Whether the model supports reasoning capabilities"`
68 ReasoningEffort string `json:"reasoning_effort,omitempty" jsonschema:"title=Reasoning Effort,description=Default reasoning effort level for reasoning models"`
69 HasReasoningEffort bool `json:"has_reasoning_effort,omitempty" jsonschema:"title=Has Reasoning Effort,description=Whether the model supports reasoning effort configuration"`
70 SupportsImages bool `json:"supports_attachments,omitempty" jsonschema:"title=Supports Images,description=Whether the model supports image attachments"`
71}
72
73type VertexAIOptions struct {
74 APIKey string `json:"api_key,omitempty"`
75 Project string `json:"project,omitempty"`
76 Location string `json:"location,omitempty"`
77}
78
79type ProviderConfig struct {
80 ID provider.InferenceProvider `json:"id,omitempty" jsonschema:"title=Provider ID,description=Unique identifier for the provider"`
81 BaseURL string `json:"base_url,omitempty" jsonschema:"title=Base URL,description=Base URL for the provider API (required for custom providers)"`
82 ProviderType provider.Type `json:"provider_type" jsonschema:"title=Provider Type,description=Type of the provider (openai, anthropic, etc.)"`
83 APIKey string `json:"api_key,omitempty" jsonschema:"title=API Key,description=API key for authenticating with the provider"`
84 Disabled bool `json:"disabled,omitempty" jsonschema:"title=Disabled,description=Whether this provider is disabled,default=false"`
85 ExtraHeaders map[string]string `json:"extra_headers,omitempty" jsonschema:"title=Extra Headers,description=Additional HTTP headers to send with requests"`
86 // used for e.x for vertex to set the project
87 ExtraParams map[string]string `json:"extra_params,omitempty" jsonschema:"title=Extra Parameters,description=Additional provider-specific parameters"`
88
89 DefaultLargeModel string `json:"default_large_model,omitempty" jsonschema:"title=Default Large Model,description=Default model ID for large model type"`
90 DefaultSmallModel string `json:"default_small_model,omitempty" jsonschema:"title=Default Small Model,description=Default model ID for small model type"`
91
92 Models []Model `json:"models,omitempty" jsonschema:"title=Models,description=List of available models for this provider"`
93}
94
95type Agent struct {
96 ID AgentID `json:"id,omitempty" jsonschema:"title=Agent ID,description=Unique identifier for the agent,enum=coder,enum=task"`
97 Name string `json:"name,omitempty" jsonschema:"title=Name,description=Display name of the agent"`
98 Description string `json:"description,omitempty" jsonschema:"title=Description,description=Description of what the agent does"`
99 // This is the id of the system prompt used by the agent
100 Disabled bool `json:"disabled,omitempty" jsonschema:"title=Disabled,description=Whether this agent is disabled,default=false"`
101
102 Model ModelType `json:"model" jsonschema:"title=Model Type,description=Type of model to use (large or small),enum=large,enum=small"`
103
104 // The available tools for the agent
105 // if this is nil, all tools are available
106 AllowedTools []string `json:"allowed_tools,omitempty" jsonschema:"title=Allowed Tools,description=List of tools this agent is allowed to use (if nil all tools are allowed)"`
107
108 // this tells us which MCPs are available for this agent
109 // if this is empty all mcps are available
110 // the string array is the list of tools from the AllowedMCP the agent has available
111 // if the string array is nil, all tools from the AllowedMCP are available
112 AllowedMCP map[string][]string `json:"allowed_mcp,omitempty" jsonschema:"title=Allowed MCP,description=Map of MCP servers this agent can use and their allowed tools"`
113
114 // The list of LSPs that this agent can use
115 // if this is nil, all LSPs are available
116 AllowedLSP []string `json:"allowed_lsp,omitempty" jsonschema:"title=Allowed LSP,description=List of LSP servers this agent can use (if nil all LSPs are allowed)"`
117
118 // Overrides the context paths for this agent
119 ContextPaths []string `json:"context_paths,omitempty" jsonschema:"title=Context Paths,description=Custom context paths for this agent (additive to global context paths)"`
120}
121
122type MCPType string
123
124const (
125 MCPStdio MCPType = "stdio"
126 MCPSse MCPType = "sse"
127)
128
129type MCP struct {
130 Command string `json:"command" jsonschema:"title=Command,description=Command to execute for stdio MCP servers"`
131 Env []string `json:"env,omitempty" jsonschema:"title=Environment,description=Environment variables for the MCP server"`
132 Args []string `json:"args,omitempty" jsonschema:"title=Arguments,description=Command line arguments for the MCP server"`
133 Type MCPType `json:"type" jsonschema:"title=Type,description=Type of MCP connection,enum=stdio,enum=sse,default=stdio"`
134 URL string `json:"url,omitempty" jsonschema:"title=URL,description=URL for SSE MCP servers"`
135 // TODO: maybe make it possible to get the value from the env
136 Headers map[string]string `json:"headers,omitempty" jsonschema:"title=Headers,description=HTTP headers for SSE MCP servers"`
137}
138
139type LSPConfig struct {
140 Disabled bool `json:"enabled,omitempty" jsonschema:"title=Enabled,description=Whether this LSP server is enabled,default=true"`
141 Command string `json:"command" jsonschema:"title=Command,description=Command to execute for the LSP server"`
142 Args []string `json:"args,omitempty" jsonschema:"title=Arguments,description=Command line arguments for the LSP server"`
143 Options any `json:"options,omitempty" jsonschema:"title=Options,description=LSP server specific options"`
144}
145
146type TUIOptions struct {
147 CompactMode bool `json:"compact_mode" jsonschema:"title=Compact Mode,description=Enable compact mode for the TUI,default=false"`
148 // Here we can add themes later or any TUI related options
149}
150
151type Options struct {
152 ContextPaths []string `json:"context_paths,omitempty" jsonschema:"title=Context Paths,description=List of paths to search for context files"`
153 TUI TUIOptions `json:"tui,omitempty" jsonschema:"title=TUI Options,description=Terminal UI configuration options"`
154 Debug bool `json:"debug,omitempty" jsonschema:"title=Debug,description=Enable debug logging,default=false"`
155 DebugLSP bool `json:"debug_lsp,omitempty" jsonschema:"title=Debug LSP,description=Enable LSP debug logging,default=false"`
156 DisableAutoSummarize bool `json:"disable_auto_summarize,omitempty" jsonschema:"title=Disable Auto Summarize,description=Disable automatic conversation summarization,default=false"`
157 // Relative to the cwd
158 DataDirectory string `json:"data_directory,omitempty" jsonschema:"title=Data Directory,description=Directory for storing application data,default=.crush"`
159}
160
161type PreferredModel struct {
162 ModelID string `json:"model_id" jsonschema:"title=Model ID,description=ID of the preferred model"`
163 Provider provider.InferenceProvider `json:"provider" jsonschema:"title=Provider,description=Provider for the preferred model"`
164 // ReasoningEffort overrides the default reasoning effort for this model
165 ReasoningEffort string `json:"reasoning_effort,omitempty" jsonschema:"title=Reasoning Effort,description=Override reasoning effort for this model"`
166 // MaxTokens overrides the default max tokens for this model
167 MaxTokens int64 `json:"max_tokens,omitempty" jsonschema:"title=Max Tokens,description=Override max tokens for this model,minimum=1"`
168
169 // Think indicates if the model should think, only applicable for anthropic reasoning models
170 Think bool `json:"think,omitempty" jsonschema:"title=Think,description=Enable thinking for reasoning models,default=false"`
171}
172
173type PreferredModels struct {
174 Large PreferredModel `json:"large,omitempty" jsonschema:"title=Large Model,description=Preferred model configuration for large model type"`
175 Small PreferredModel `json:"small,omitempty" jsonschema:"title=Small Model,description=Preferred model configuration for small model type"`
176}
177
178type Config struct {
179 Models PreferredModels `json:"models,omitempty" jsonschema:"title=Models,description=Preferred model configurations for large and small model types"`
180 // List of configured providers
181 Providers map[provider.InferenceProvider]ProviderConfig `json:"providers,omitempty" jsonschema:"title=Providers,description=LLM provider configurations"`
182
183 // List of configured agents
184 Agents map[AgentID]Agent `json:"agents,omitempty" jsonschema:"title=Agents,description=Agent configurations for different tasks"`
185
186 // List of configured MCPs
187 MCP map[string]MCP `json:"mcp,omitempty" jsonschema:"title=MCP,description=Model Control Protocol server configurations"`
188
189 // List of configured LSPs
190 LSP map[string]LSPConfig `json:"lsp,omitempty" jsonschema:"title=LSP,description=Language Server Protocol configurations"`
191
192 // Miscellaneous options
193 Options Options `json:"options,omitempty" jsonschema:"title=Options,description=General application options and settings"`
194}
195
196var (
197 instance *Config // The single instance of the Singleton
198 cwd string
199 once sync.Once // Ensures the initialization happens only once
200
201)
202
203func loadConfig(cwd string, debug bool) (*Config, error) {
204 // First read the global config file
205 cfgPath := ConfigPath()
206
207 cfg := defaultConfigBasedOnEnv()
208 cfg.Options.Debug = debug
209 defaultLevel := slog.LevelInfo
210 if cfg.Options.Debug {
211 defaultLevel = slog.LevelDebug
212 }
213 if os.Getenv("CRUSH_DEV_DEBUG") == "true" {
214 loggingFile := fmt.Sprintf("%s/%s", cfg.Options.DataDirectory, "debug.log")
215
216 // if file does not exist create it
217 if _, err := os.Stat(loggingFile); os.IsNotExist(err) {
218 if err := os.MkdirAll(cfg.Options.DataDirectory, 0o755); err != nil {
219 return cfg, fmt.Errorf("failed to create directory: %w", err)
220 }
221 if _, err := os.Create(loggingFile); err != nil {
222 return cfg, fmt.Errorf("failed to create log file: %w", err)
223 }
224 }
225
226 sloggingFileWriter, err := os.OpenFile(loggingFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o666)
227 if err != nil {
228 return cfg, fmt.Errorf("failed to open log file: %w", err)
229 }
230 // Configure logger
231 logger := slog.New(slog.NewTextHandler(sloggingFileWriter, &slog.HandlerOptions{
232 Level: defaultLevel,
233 }))
234 slog.SetDefault(logger)
235 } else {
236 // Configure logger
237 logger := slog.New(slog.NewTextHandler(logging.NewWriter(), &slog.HandlerOptions{
238 Level: defaultLevel,
239 }))
240 slog.SetDefault(logger)
241 }
242 var globalCfg *Config
243 if _, err := os.Stat(cfgPath); err != nil && !os.IsNotExist(err) {
244 // some other error occurred while checking the file
245 return nil, err
246 } else if err == nil {
247 // config file exists, read it
248 file, err := os.ReadFile(cfgPath)
249 if err != nil {
250 return nil, err
251 }
252 globalCfg = &Config{}
253 if err := json.Unmarshal(file, globalCfg); err != nil {
254 return nil, err
255 }
256 } else {
257 // config file does not exist, create a new one
258 globalCfg = &Config{}
259 }
260
261 var localConfig *Config
262 // Global config loaded, now read the local config file
263 localConfigPath := filepath.Join(cwd, "crush.json")
264 if _, err := os.Stat(localConfigPath); err != nil && !os.IsNotExist(err) {
265 // some other error occurred while checking the file
266 return nil, err
267 } else if err == nil {
268 // local config file exists, read it
269 file, err := os.ReadFile(localConfigPath)
270 if err != nil {
271 return nil, err
272 }
273 localConfig = &Config{}
274 if err := json.Unmarshal(file, localConfig); err != nil {
275 return nil, err
276 }
277 }
278
279 // merge options
280 mergeOptions(cfg, globalCfg, localConfig)
281
282 mergeProviderConfigs(cfg, globalCfg, localConfig)
283 // no providers found the app is not initialized yet
284 if len(cfg.Providers) == 0 {
285 return cfg, nil
286 }
287 preferredProvider := getPreferredProvider(cfg.Providers)
288 if preferredProvider != nil {
289 cfg.Models = PreferredModels{
290 Large: PreferredModel{
291 ModelID: preferredProvider.DefaultLargeModel,
292 Provider: preferredProvider.ID,
293 },
294 Small: PreferredModel{
295 ModelID: preferredProvider.DefaultSmallModel,
296 Provider: preferredProvider.ID,
297 },
298 }
299 } else {
300 // No valid providers found, set empty models
301 cfg.Models = PreferredModels{}
302 }
303
304 mergeModels(cfg, globalCfg, localConfig)
305
306 agents := map[AgentID]Agent{
307 AgentCoder: {
308 ID: AgentCoder,
309 Name: "Coder",
310 Description: "An agent that helps with executing coding tasks.",
311 Model: LargeModel,
312 ContextPaths: cfg.Options.ContextPaths,
313 // All tools allowed
314 },
315 AgentTask: {
316 ID: AgentTask,
317 Name: "Task",
318 Description: "An agent that helps with searching for context and finding implementation details.",
319 Model: LargeModel,
320 ContextPaths: cfg.Options.ContextPaths,
321 AllowedTools: []string{
322 "glob",
323 "grep",
324 "ls",
325 "sourcegraph",
326 "view",
327 },
328 // NO MCPs or LSPs by default
329 AllowedMCP: map[string][]string{},
330 AllowedLSP: []string{},
331 },
332 }
333 cfg.Agents = agents
334 mergeAgents(cfg, globalCfg, localConfig)
335 mergeMCPs(cfg, globalCfg, localConfig)
336 mergeLSPs(cfg, globalCfg, localConfig)
337
338 // Validate the final configuration
339 if err := cfg.Validate(); err != nil {
340 return cfg, fmt.Errorf("configuration validation failed: %w", err)
341 }
342
343 return cfg, nil
344}
345
346func Init(workingDir string, debug bool) (*Config, error) {
347 var err error
348 once.Do(func() {
349 cwd = workingDir
350 instance, err = loadConfig(cwd, debug)
351 if err != nil {
352 logging.Error("Failed to load config", "error", err)
353 }
354 })
355
356 return instance, err
357}
358
359func Get() *Config {
360 if instance == nil {
361 // TODO: Handle this better
362 panic("Config not initialized. Call InitConfig first.")
363 }
364 return instance
365}
366
367func getPreferredProvider(configuredProviders map[provider.InferenceProvider]ProviderConfig) *ProviderConfig {
368 providers := Providers()
369 for _, p := range providers {
370 if providerConfig, ok := configuredProviders[p.ID]; ok && !providerConfig.Disabled {
371 return &providerConfig
372 }
373 }
374 // if none found return the first configured provider
375 for _, providerConfig := range configuredProviders {
376 if !providerConfig.Disabled {
377 return &providerConfig
378 }
379 }
380 return nil
381}
382
383func mergeProviderConfig(p provider.InferenceProvider, base, other ProviderConfig) ProviderConfig {
384 if other.APIKey != "" {
385 base.APIKey = other.APIKey
386 }
387 // Only change these options if the provider is not a known provider
388 if !slices.Contains(provider.KnownProviders(), p) {
389 if other.BaseURL != "" {
390 base.BaseURL = other.BaseURL
391 }
392 if other.ProviderType != "" {
393 base.ProviderType = other.ProviderType
394 }
395 if len(other.ExtraHeaders) > 0 {
396 if base.ExtraHeaders == nil {
397 base.ExtraHeaders = make(map[string]string)
398 }
399 maps.Copy(base.ExtraHeaders, other.ExtraHeaders)
400 }
401 if len(other.ExtraParams) > 0 {
402 if base.ExtraParams == nil {
403 base.ExtraParams = make(map[string]string)
404 }
405 maps.Copy(base.ExtraParams, other.ExtraParams)
406 }
407 }
408
409 if other.Disabled {
410 base.Disabled = other.Disabled
411 }
412
413 if other.DefaultLargeModel != "" {
414 base.DefaultLargeModel = other.DefaultLargeModel
415 }
416 // Add new models if they don't exist
417 if other.Models != nil {
418 for _, model := range other.Models {
419 // check if the model already exists
420 exists := false
421 for _, existingModel := range base.Models {
422 if existingModel.ID == model.ID {
423 exists = true
424 break
425 }
426 }
427 if !exists {
428 base.Models = append(base.Models, model)
429 }
430 }
431 }
432
433 return base
434}
435
436func validateProvider(p provider.InferenceProvider, providerConfig ProviderConfig) error {
437 if !slices.Contains(provider.KnownProviders(), p) {
438 if providerConfig.ProviderType != provider.TypeOpenAI {
439 return errors.New("invalid provider type: " + string(providerConfig.ProviderType))
440 }
441 if providerConfig.BaseURL == "" {
442 return errors.New("base URL must be set for custom providers")
443 }
444 if providerConfig.APIKey == "" {
445 return errors.New("API key must be set for custom providers")
446 }
447 }
448 return nil
449}
450
451func mergeModels(base, global, local *Config) {
452 for _, cfg := range []*Config{global, local} {
453 if cfg == nil {
454 continue
455 }
456 if cfg.Models.Large.ModelID != "" && cfg.Models.Large.Provider != "" {
457 base.Models.Large = cfg.Models.Large
458 }
459
460 if cfg.Models.Small.ModelID != "" && cfg.Models.Small.Provider != "" {
461 base.Models.Small = cfg.Models.Small
462 }
463 }
464}
465
466func mergeOptions(base, global, local *Config) {
467 for _, cfg := range []*Config{global, local} {
468 if cfg == nil {
469 continue
470 }
471 baseOptions := base.Options
472 other := cfg.Options
473 if len(other.ContextPaths) > 0 {
474 baseOptions.ContextPaths = append(baseOptions.ContextPaths, other.ContextPaths...)
475 }
476
477 if other.TUI.CompactMode {
478 baseOptions.TUI.CompactMode = other.TUI.CompactMode
479 }
480
481 if other.Debug {
482 baseOptions.Debug = other.Debug
483 }
484
485 if other.DebugLSP {
486 baseOptions.DebugLSP = other.DebugLSP
487 }
488
489 if other.DisableAutoSummarize {
490 baseOptions.DisableAutoSummarize = other.DisableAutoSummarize
491 }
492
493 if other.DataDirectory != "" {
494 baseOptions.DataDirectory = other.DataDirectory
495 }
496 base.Options = baseOptions
497 }
498}
499
500func mergeAgents(base, global, local *Config) {
501 for _, cfg := range []*Config{global, local} {
502 if cfg == nil {
503 continue
504 }
505 for agentID, newAgent := range cfg.Agents {
506 if _, ok := base.Agents[agentID]; !ok {
507 newAgent.ID = agentID
508 if newAgent.Model == "" {
509 newAgent.Model = LargeModel
510 }
511 if len(newAgent.ContextPaths) > 0 {
512 newAgent.ContextPaths = append(base.Options.ContextPaths, newAgent.ContextPaths...)
513 } else {
514 newAgent.ContextPaths = base.Options.ContextPaths
515 }
516 base.Agents[agentID] = newAgent
517 } else {
518 baseAgent := base.Agents[agentID]
519
520 if agentID == AgentCoder || agentID == AgentTask {
521 if newAgent.Model != "" {
522 baseAgent.Model = newAgent.Model
523 }
524 if newAgent.AllowedMCP != nil {
525 baseAgent.AllowedMCP = newAgent.AllowedMCP
526 }
527 if newAgent.AllowedLSP != nil {
528 baseAgent.AllowedLSP = newAgent.AllowedLSP
529 }
530 // Context paths are additive for known agents too
531 if len(newAgent.ContextPaths) > 0 {
532 baseAgent.ContextPaths = append(baseAgent.ContextPaths, newAgent.ContextPaths...)
533 }
534 } else {
535 if newAgent.Name != "" {
536 baseAgent.Name = newAgent.Name
537 }
538 if newAgent.Description != "" {
539 baseAgent.Description = newAgent.Description
540 }
541 if newAgent.Model != "" {
542 baseAgent.Model = newAgent.Model
543 } else if baseAgent.Model == "" {
544 baseAgent.Model = LargeModel
545 }
546
547 baseAgent.Disabled = newAgent.Disabled
548
549 if newAgent.AllowedTools != nil {
550 baseAgent.AllowedTools = newAgent.AllowedTools
551 }
552 if newAgent.AllowedMCP != nil {
553 baseAgent.AllowedMCP = newAgent.AllowedMCP
554 }
555 if newAgent.AllowedLSP != nil {
556 baseAgent.AllowedLSP = newAgent.AllowedLSP
557 }
558 if len(newAgent.ContextPaths) > 0 {
559 baseAgent.ContextPaths = append(baseAgent.ContextPaths, newAgent.ContextPaths...)
560 }
561 }
562
563 base.Agents[agentID] = baseAgent
564 }
565 }
566 }
567}
568
569func mergeMCPs(base, global, local *Config) {
570 for _, cfg := range []*Config{global, local} {
571 if cfg == nil {
572 continue
573 }
574 maps.Copy(base.MCP, cfg.MCP)
575 }
576}
577
578func mergeLSPs(base, global, local *Config) {
579 for _, cfg := range []*Config{global, local} {
580 if cfg == nil {
581 continue
582 }
583 maps.Copy(base.LSP, cfg.LSP)
584 }
585}
586
587func mergeProviderConfigs(base, global, local *Config) {
588 for _, cfg := range []*Config{global, local} {
589 if cfg == nil {
590 continue
591 }
592 for providerName, p := range cfg.Providers {
593 p.ID = providerName
594 if _, ok := base.Providers[providerName]; !ok {
595 base.Providers[providerName] = p
596 } else {
597 base.Providers[providerName] = mergeProviderConfig(providerName, base.Providers[providerName], p)
598 }
599 }
600 }
601
602 finalProviders := make(map[provider.InferenceProvider]ProviderConfig)
603 for providerName, providerConfig := range base.Providers {
604 err := validateProvider(providerName, providerConfig)
605 if err != nil {
606 logging.Warn("Skipping provider", "name", providerName, "error", err)
607 continue // Skip invalid providers
608 }
609 finalProviders[providerName] = providerConfig
610 }
611 base.Providers = finalProviders
612}
613
614func providerDefaultConfig(providerID provider.InferenceProvider) ProviderConfig {
615 switch providerID {
616 case provider.InferenceProviderAnthropic:
617 return ProviderConfig{
618 ID: providerID,
619 ProviderType: provider.TypeAnthropic,
620 }
621 case provider.InferenceProviderOpenAI:
622 return ProviderConfig{
623 ID: providerID,
624 ProviderType: provider.TypeOpenAI,
625 }
626 case provider.InferenceProviderGemini:
627 return ProviderConfig{
628 ID: providerID,
629 ProviderType: provider.TypeGemini,
630 }
631 case provider.InferenceProviderBedrock:
632 return ProviderConfig{
633 ID: providerID,
634 ProviderType: provider.TypeBedrock,
635 }
636 case provider.InferenceProviderAzure:
637 return ProviderConfig{
638 ID: providerID,
639 ProviderType: provider.TypeAzure,
640 }
641 case provider.InferenceProviderOpenRouter:
642 return ProviderConfig{
643 ID: providerID,
644 ProviderType: provider.TypeOpenAI,
645 BaseURL: "https://openrouter.ai/api/v1",
646 ExtraHeaders: map[string]string{
647 "HTTP-Referer": "crush.charm.land",
648 "X-Title": "Crush",
649 },
650 }
651 case provider.InferenceProviderXAI:
652 return ProviderConfig{
653 ID: providerID,
654 ProviderType: provider.TypeXAI,
655 BaseURL: "https://api.x.ai/v1",
656 }
657 case provider.InferenceProviderVertexAI:
658 return ProviderConfig{
659 ID: providerID,
660 ProviderType: provider.TypeVertexAI,
661 }
662 default:
663 return ProviderConfig{
664 ID: providerID,
665 ProviderType: provider.TypeOpenAI,
666 }
667 }
668}
669
670func defaultConfigBasedOnEnv() *Config {
671 cfg := &Config{
672 Options: Options{
673 DataDirectory: defaultDataDirectory,
674 ContextPaths: defaultContextPaths,
675 },
676 Providers: make(map[provider.InferenceProvider]ProviderConfig),
677 Agents: make(map[AgentID]Agent),
678 LSP: make(map[string]LSPConfig),
679 MCP: make(map[string]MCP),
680 }
681
682 providers := Providers()
683
684 for _, p := range providers {
685 if strings.HasPrefix(p.APIKey, "$") {
686 envVar := strings.TrimPrefix(p.APIKey, "$")
687 if apiKey := os.Getenv(envVar); apiKey != "" {
688 providerConfig := providerDefaultConfig(p.ID)
689 providerConfig.APIKey = apiKey
690 providerConfig.DefaultLargeModel = p.DefaultLargeModelID
691 providerConfig.DefaultSmallModel = p.DefaultSmallModelID
692 baseURL := p.APIEndpoint
693 if strings.HasPrefix(baseURL, "$") {
694 envVar := strings.TrimPrefix(baseURL, "$")
695 baseURL = os.Getenv(envVar)
696 }
697 providerConfig.BaseURL = baseURL
698 for _, model := range p.Models {
699 configModel := Model{
700 ID: model.ID,
701 Name: model.Name,
702 CostPer1MIn: model.CostPer1MIn,
703 CostPer1MOut: model.CostPer1MOut,
704 CostPer1MInCached: model.CostPer1MInCached,
705 CostPer1MOutCached: model.CostPer1MOutCached,
706 ContextWindow: model.ContextWindow,
707 DefaultMaxTokens: model.DefaultMaxTokens,
708 CanReason: model.CanReason,
709 SupportsImages: model.SupportsImages,
710 }
711 // Set reasoning effort for reasoning models
712 if model.HasReasoningEffort && model.DefaultReasoningEffort != "" {
713 configModel.HasReasoningEffort = model.HasReasoningEffort
714 configModel.ReasoningEffort = model.DefaultReasoningEffort
715 }
716 providerConfig.Models = append(providerConfig.Models, configModel)
717 }
718 cfg.Providers[p.ID] = providerConfig
719 }
720 }
721 }
722 // TODO: support local models
723
724 if useVertexAI := os.Getenv("GOOGLE_GENAI_USE_VERTEXAI"); useVertexAI == "true" {
725 providerConfig := providerDefaultConfig(provider.InferenceProviderVertexAI)
726 providerConfig.ExtraParams = map[string]string{
727 "project": os.Getenv("GOOGLE_CLOUD_PROJECT"),
728 "location": os.Getenv("GOOGLE_CLOUD_LOCATION"),
729 }
730 // Find the VertexAI provider definition to get default models
731 for _, p := range providers {
732 if p.ID == provider.InferenceProviderVertexAI {
733 providerConfig.DefaultLargeModel = p.DefaultLargeModelID
734 providerConfig.DefaultSmallModel = p.DefaultSmallModelID
735 for _, model := range p.Models {
736 configModel := Model{
737 ID: model.ID,
738 Name: model.Name,
739 CostPer1MIn: model.CostPer1MIn,
740 CostPer1MOut: model.CostPer1MOut,
741 CostPer1MInCached: model.CostPer1MInCached,
742 CostPer1MOutCached: model.CostPer1MOutCached,
743 ContextWindow: model.ContextWindow,
744 DefaultMaxTokens: model.DefaultMaxTokens,
745 CanReason: model.CanReason,
746 SupportsImages: model.SupportsImages,
747 }
748 // Set reasoning effort for reasoning models
749 if model.HasReasoningEffort && model.DefaultReasoningEffort != "" {
750 configModel.HasReasoningEffort = model.HasReasoningEffort
751 configModel.ReasoningEffort = model.DefaultReasoningEffort
752 }
753 providerConfig.Models = append(providerConfig.Models, configModel)
754 }
755 break
756 }
757 }
758 cfg.Providers[provider.InferenceProviderVertexAI] = providerConfig
759 }
760
761 if hasAWSCredentials() {
762 providerConfig := providerDefaultConfig(provider.InferenceProviderBedrock)
763 providerConfig.ExtraParams = map[string]string{
764 "region": os.Getenv("AWS_DEFAULT_REGION"),
765 }
766 if providerConfig.ExtraParams["region"] == "" {
767 providerConfig.ExtraParams["region"] = os.Getenv("AWS_REGION")
768 }
769 // Find the Bedrock provider definition to get default models
770 for _, p := range providers {
771 if p.ID == provider.InferenceProviderBedrock {
772 providerConfig.DefaultLargeModel = p.DefaultLargeModelID
773 providerConfig.DefaultSmallModel = p.DefaultSmallModelID
774 for _, model := range p.Models {
775 configModel := Model{
776 ID: model.ID,
777 Name: model.Name,
778 CostPer1MIn: model.CostPer1MIn,
779 CostPer1MOut: model.CostPer1MOut,
780 CostPer1MInCached: model.CostPer1MInCached,
781 CostPer1MOutCached: model.CostPer1MOutCached,
782 ContextWindow: model.ContextWindow,
783 DefaultMaxTokens: model.DefaultMaxTokens,
784 CanReason: model.CanReason,
785 SupportsImages: model.SupportsImages,
786 }
787 // Set reasoning effort for reasoning models
788 if model.HasReasoningEffort && model.DefaultReasoningEffort != "" {
789 configModel.HasReasoningEffort = model.HasReasoningEffort
790 configModel.ReasoningEffort = model.DefaultReasoningEffort
791 }
792 providerConfig.Models = append(providerConfig.Models, configModel)
793 }
794 break
795 }
796 }
797 cfg.Providers[provider.InferenceProviderBedrock] = providerConfig
798 }
799 return cfg
800}
801
802func hasAWSCredentials() bool {
803 if os.Getenv("AWS_ACCESS_KEY_ID") != "" && os.Getenv("AWS_SECRET_ACCESS_KEY") != "" {
804 return true
805 }
806
807 if os.Getenv("AWS_PROFILE") != "" || os.Getenv("AWS_DEFAULT_PROFILE") != "" {
808 return true
809 }
810
811 if os.Getenv("AWS_REGION") != "" || os.Getenv("AWS_DEFAULT_REGION") != "" {
812 return true
813 }
814
815 if os.Getenv("AWS_CONTAINER_CREDENTIALS_RELATIVE_URI") != "" ||
816 os.Getenv("AWS_CONTAINER_CREDENTIALS_FULL_URI") != "" {
817 return true
818 }
819
820 return false
821}
822
823func WorkingDirectory() string {
824 return cwd
825}
826
827// TODO: Handle error state
828
829func GetAgentModel(agentID AgentID) Model {
830 cfg := Get()
831 agent, ok := cfg.Agents[agentID]
832 if !ok {
833 logging.Error("Agent not found", "agent_id", agentID)
834 return Model{}
835 }
836
837 var model PreferredModel
838 switch agent.Model {
839 case LargeModel:
840 model = cfg.Models.Large
841 case SmallModel:
842 model = cfg.Models.Small
843 default:
844 logging.Warn("Unknown model type for agent", "agent_id", agentID, "model_type", agent.Model)
845 model = cfg.Models.Large // Fallback to large model
846 }
847 providerConfig, ok := cfg.Providers[model.Provider]
848 if !ok {
849 logging.Error("Provider not found for agent", "agent_id", agentID, "provider", model.Provider)
850 return Model{}
851 }
852
853 for _, m := range providerConfig.Models {
854 if m.ID == model.ModelID {
855 return m
856 }
857 }
858
859 logging.Error("Model not found for agent", "agent_id", agentID, "model", agent.Model)
860 return Model{}
861}
862
863// GetAgentEffectiveMaxTokens returns the effective max tokens for an agent,
864// considering any overrides from the preferred model configuration
865func GetAgentEffectiveMaxTokens(agentID AgentID) int64 {
866 cfg := Get()
867 agent, ok := cfg.Agents[agentID]
868 if !ok {
869 logging.Error("Agent not found", "agent_id", agentID)
870 return 0
871 }
872
873 var preferredModel PreferredModel
874 switch agent.Model {
875 case LargeModel:
876 preferredModel = cfg.Models.Large
877 case SmallModel:
878 preferredModel = cfg.Models.Small
879 default:
880 logging.Warn("Unknown model type for agent", "agent_id", agentID, "model_type", agent.Model)
881 preferredModel = cfg.Models.Large // Fallback to large model
882 }
883
884 // Get the base model configuration
885 baseModel := GetAgentModel(agentID)
886 if baseModel.ID == "" {
887 return 0
888 }
889
890 // Start with the default max tokens from the base model
891 maxTokens := baseModel.DefaultMaxTokens
892
893 // Override with preferred model max tokens if set
894 if preferredModel.MaxTokens > 0 {
895 maxTokens = preferredModel.MaxTokens
896 }
897
898 return maxTokens
899}
900
901func GetAgentProvider(agentID AgentID) ProviderConfig {
902 cfg := Get()
903 agent, ok := cfg.Agents[agentID]
904 if !ok {
905 logging.Error("Agent not found", "agent_id", agentID)
906 return ProviderConfig{}
907 }
908
909 var model PreferredModel
910 switch agent.Model {
911 case LargeModel:
912 model = cfg.Models.Large
913 case SmallModel:
914 model = cfg.Models.Small
915 default:
916 logging.Warn("Unknown model type for agent", "agent_id", agentID, "model_type", agent.Model)
917 model = cfg.Models.Large // Fallback to large model
918 }
919
920 providerConfig, ok := cfg.Providers[model.Provider]
921 if !ok {
922 logging.Error("Provider not found for agent", "agent_id", agentID, "provider", model.Provider)
923 return ProviderConfig{}
924 }
925
926 return providerConfig
927}
928
929func GetProviderModel(provider provider.InferenceProvider, modelID string) Model {
930 cfg := Get()
931 providerConfig, ok := cfg.Providers[provider]
932 if !ok {
933 logging.Error("Provider not found", "provider", provider)
934 return Model{}
935 }
936
937 for _, model := range providerConfig.Models {
938 if model.ID == modelID {
939 return model
940 }
941 }
942
943 logging.Error("Model not found for provider", "provider", provider, "model_id", modelID)
944 return Model{}
945}
946
947func GetModel(modelType ModelType) Model {
948 cfg := Get()
949 var model PreferredModel
950 switch modelType {
951 case LargeModel:
952 model = cfg.Models.Large
953 case SmallModel:
954 model = cfg.Models.Small
955 default:
956 model = cfg.Models.Large // Fallback to large model
957 }
958 providerConfig, ok := cfg.Providers[model.Provider]
959 if !ok {
960 return Model{}
961 }
962
963 for _, m := range providerConfig.Models {
964 if m.ID == model.ModelID {
965 return m
966 }
967 }
968 return Model{}
969}
970
971func UpdatePreferredModel(modelType ModelType, model PreferredModel) error {
972 cfg := Get()
973 switch modelType {
974 case LargeModel:
975 cfg.Models.Large = model
976 case SmallModel:
977 cfg.Models.Small = model
978 default:
979 return fmt.Errorf("unknown model type: %s", modelType)
980 }
981 return nil
982}
983
984// ValidationError represents a configuration validation error
985type ValidationError struct {
986 Field string
987 Message string
988}
989
990func (e ValidationError) Error() string {
991 return fmt.Sprintf("validation error in %s: %s", e.Field, e.Message)
992}
993
994// ValidationErrors represents multiple validation errors
995type ValidationErrors []ValidationError
996
997func (e ValidationErrors) Error() string {
998 if len(e) == 0 {
999 return "no validation errors"
1000 }
1001 if len(e) == 1 {
1002 return e[0].Error()
1003 }
1004
1005 var messages []string
1006 for _, err := range e {
1007 messages = append(messages, err.Error())
1008 }
1009 return fmt.Sprintf("multiple validation errors: %s", strings.Join(messages, "; "))
1010}
1011
1012// HasErrors returns true if there are any validation errors
1013func (e ValidationErrors) HasErrors() bool {
1014 return len(e) > 0
1015}
1016
1017// Add appends a new validation error
1018func (e *ValidationErrors) Add(field, message string) {
1019 *e = append(*e, ValidationError{Field: field, Message: message})
1020}
1021
1022// Validate performs comprehensive validation of the configuration
1023func (c *Config) Validate() error {
1024 var errors ValidationErrors
1025
1026 // Validate providers
1027 c.validateProviders(&errors)
1028
1029 // Validate models
1030 c.validateModels(&errors)
1031
1032 // Validate agents
1033 c.validateAgents(&errors)
1034
1035 // Validate options
1036 c.validateOptions(&errors)
1037
1038 // Validate MCP configurations
1039 c.validateMCPs(&errors)
1040
1041 // Validate LSP configurations
1042 c.validateLSPs(&errors)
1043
1044 // Validate cross-references
1045 c.validateCrossReferences(&errors)
1046
1047 // Validate completeness
1048 c.validateCompleteness(&errors)
1049
1050 if errors.HasErrors() {
1051 return errors
1052 }
1053
1054 return nil
1055}
1056
1057// validateProviders validates all provider configurations
1058func (c *Config) validateProviders(errors *ValidationErrors) {
1059 if c.Providers == nil {
1060 c.Providers = make(map[provider.InferenceProvider]ProviderConfig)
1061 }
1062
1063 knownProviders := provider.KnownProviders()
1064 validTypes := []provider.Type{
1065 provider.TypeOpenAI,
1066 provider.TypeAnthropic,
1067 provider.TypeGemini,
1068 provider.TypeAzure,
1069 provider.TypeBedrock,
1070 provider.TypeVertexAI,
1071 provider.TypeXAI,
1072 }
1073
1074 for providerID, providerConfig := range c.Providers {
1075 fieldPrefix := fmt.Sprintf("providers.%s", providerID)
1076
1077 // Validate API key for non-disabled providers
1078 if !providerConfig.Disabled && providerConfig.APIKey == "" {
1079 // Special case for AWS Bedrock and VertexAI which may use other auth methods
1080 if providerID != provider.InferenceProviderBedrock && providerID != provider.InferenceProviderVertexAI {
1081 errors.Add(fieldPrefix+".api_key", "API key is required for non-disabled providers")
1082 }
1083 }
1084
1085 // Validate provider type
1086 validType := slices.Contains(validTypes, providerConfig.ProviderType)
1087 if !validType {
1088 errors.Add(fieldPrefix+".provider_type", fmt.Sprintf("invalid provider type: %s", providerConfig.ProviderType))
1089 }
1090
1091 // Validate custom providers
1092 isKnownProvider := slices.Contains(knownProviders, providerID)
1093
1094 if !isKnownProvider {
1095 // Custom provider validation
1096 if providerConfig.BaseURL == "" {
1097 errors.Add(fieldPrefix+".base_url", "BaseURL is required for custom providers")
1098 }
1099 if providerConfig.ProviderType != provider.TypeOpenAI {
1100 errors.Add(fieldPrefix+".provider_type", "custom providers currently only support OpenAI type")
1101 }
1102 }
1103
1104 // Validate models
1105 modelIDs := make(map[string]bool)
1106 for i, model := range providerConfig.Models {
1107 modelFieldPrefix := fmt.Sprintf("%s.models[%d]", fieldPrefix, i)
1108
1109 // Check for duplicate model IDs
1110 if modelIDs[model.ID] {
1111 errors.Add(modelFieldPrefix+".id", fmt.Sprintf("duplicate model ID: %s", model.ID))
1112 }
1113 modelIDs[model.ID] = true
1114
1115 // Validate required model fields
1116 if model.ID == "" {
1117 errors.Add(modelFieldPrefix+".id", "model ID is required")
1118 }
1119 if model.Name == "" {
1120 errors.Add(modelFieldPrefix+".name", "model name is required")
1121 }
1122 if model.ContextWindow <= 0 {
1123 errors.Add(modelFieldPrefix+".context_window", "context window must be positive")
1124 }
1125 if model.DefaultMaxTokens <= 0 {
1126 errors.Add(modelFieldPrefix+".default_max_tokens", "default max tokens must be positive")
1127 }
1128 if model.DefaultMaxTokens > model.ContextWindow {
1129 errors.Add(modelFieldPrefix+".default_max_tokens", "default max tokens cannot exceed context window")
1130 }
1131
1132 // Validate cost fields
1133 if model.CostPer1MIn < 0 {
1134 errors.Add(modelFieldPrefix+".cost_per_1m_in", "cost per 1M input tokens cannot be negative")
1135 }
1136 if model.CostPer1MOut < 0 {
1137 errors.Add(modelFieldPrefix+".cost_per_1m_out", "cost per 1M output tokens cannot be negative")
1138 }
1139 if model.CostPer1MInCached < 0 {
1140 errors.Add(modelFieldPrefix+".cost_per_1m_in_cached", "cached cost per 1M input tokens cannot be negative")
1141 }
1142 if model.CostPer1MOutCached < 0 {
1143 errors.Add(modelFieldPrefix+".cost_per_1m_out_cached", "cached cost per 1M output tokens cannot be negative")
1144 }
1145 }
1146
1147 // Validate default model references
1148 if providerConfig.DefaultLargeModel != "" {
1149 if !modelIDs[providerConfig.DefaultLargeModel] {
1150 errors.Add(fieldPrefix+".default_large_model", fmt.Sprintf("default large model '%s' not found in provider models", providerConfig.DefaultLargeModel))
1151 }
1152 }
1153 if providerConfig.DefaultSmallModel != "" {
1154 if !modelIDs[providerConfig.DefaultSmallModel] {
1155 errors.Add(fieldPrefix+".default_small_model", fmt.Sprintf("default small model '%s' not found in provider models", providerConfig.DefaultSmallModel))
1156 }
1157 }
1158
1159 // Validate provider-specific requirements
1160 c.validateProviderSpecific(providerID, providerConfig, errors)
1161 }
1162}
1163
1164// validateProviderSpecific validates provider-specific requirements
1165func (c *Config) validateProviderSpecific(providerID provider.InferenceProvider, providerConfig ProviderConfig, errors *ValidationErrors) {
1166 fieldPrefix := fmt.Sprintf("providers.%s", providerID)
1167
1168 switch providerID {
1169 case provider.InferenceProviderVertexAI:
1170 if !providerConfig.Disabled {
1171 if providerConfig.ExtraParams == nil {
1172 errors.Add(fieldPrefix+".extra_params", "VertexAI requires extra_params configuration")
1173 } else {
1174 if providerConfig.ExtraParams["project"] == "" {
1175 errors.Add(fieldPrefix+".extra_params.project", "VertexAI requires project parameter")
1176 }
1177 if providerConfig.ExtraParams["location"] == "" {
1178 errors.Add(fieldPrefix+".extra_params.location", "VertexAI requires location parameter")
1179 }
1180 }
1181 }
1182 case provider.InferenceProviderBedrock:
1183 if !providerConfig.Disabled {
1184 if providerConfig.ExtraParams == nil || providerConfig.ExtraParams["region"] == "" {
1185 errors.Add(fieldPrefix+".extra_params.region", "Bedrock requires region parameter")
1186 }
1187 // Check for AWS credentials in environment
1188 if !hasAWSCredentials() {
1189 errors.Add(fieldPrefix, "Bedrock requires AWS credentials in environment")
1190 }
1191 }
1192 }
1193}
1194
1195// validateModels validates preferred model configurations
1196func (c *Config) validateModels(errors *ValidationErrors) {
1197 // Validate large model
1198 if c.Models.Large.ModelID != "" || c.Models.Large.Provider != "" {
1199 if c.Models.Large.ModelID == "" {
1200 errors.Add("models.large.model_id", "large model ID is required when provider is set")
1201 }
1202 if c.Models.Large.Provider == "" {
1203 errors.Add("models.large.provider", "large model provider is required when model ID is set")
1204 }
1205
1206 // Check if provider exists and is not disabled
1207 if providerConfig, exists := c.Providers[c.Models.Large.Provider]; exists {
1208 if providerConfig.Disabled {
1209 errors.Add("models.large.provider", "large model provider is disabled")
1210 }
1211
1212 // Check if model exists in provider
1213 modelExists := false
1214 for _, model := range providerConfig.Models {
1215 if model.ID == c.Models.Large.ModelID {
1216 modelExists = true
1217 break
1218 }
1219 }
1220 if !modelExists {
1221 errors.Add("models.large.model_id", fmt.Sprintf("large model '%s' not found in provider '%s'", c.Models.Large.ModelID, c.Models.Large.Provider))
1222 }
1223 } else {
1224 errors.Add("models.large.provider", fmt.Sprintf("large model provider '%s' not found", c.Models.Large.Provider))
1225 }
1226 }
1227
1228 // Validate small model
1229 if c.Models.Small.ModelID != "" || c.Models.Small.Provider != "" {
1230 if c.Models.Small.ModelID == "" {
1231 errors.Add("models.small.model_id", "small model ID is required when provider is set")
1232 }
1233 if c.Models.Small.Provider == "" {
1234 errors.Add("models.small.provider", "small model provider is required when model ID is set")
1235 }
1236
1237 // Check if provider exists and is not disabled
1238 if providerConfig, exists := c.Providers[c.Models.Small.Provider]; exists {
1239 if providerConfig.Disabled {
1240 errors.Add("models.small.provider", "small model provider is disabled")
1241 }
1242
1243 // Check if model exists in provider
1244 modelExists := false
1245 for _, model := range providerConfig.Models {
1246 if model.ID == c.Models.Small.ModelID {
1247 modelExists = true
1248 break
1249 }
1250 }
1251 if !modelExists {
1252 errors.Add("models.small.model_id", fmt.Sprintf("small model '%s' not found in provider '%s'", c.Models.Small.ModelID, c.Models.Small.Provider))
1253 }
1254 } else {
1255 errors.Add("models.small.provider", fmt.Sprintf("small model provider '%s' not found", c.Models.Small.Provider))
1256 }
1257 }
1258}
1259
1260// validateAgents validates agent configurations
1261func (c *Config) validateAgents(errors *ValidationErrors) {
1262 if c.Agents == nil {
1263 c.Agents = make(map[AgentID]Agent)
1264 }
1265
1266 validTools := []string{
1267 "bash", "edit", "fetch", "glob", "grep", "ls", "sourcegraph", "view", "write", "agent",
1268 }
1269
1270 for agentID, agent := range c.Agents {
1271 fieldPrefix := fmt.Sprintf("agents.%s", agentID)
1272
1273 // Validate agent ID consistency
1274 if agent.ID != agentID {
1275 errors.Add(fieldPrefix+".id", fmt.Sprintf("agent ID mismatch: expected '%s', got '%s'", agentID, agent.ID))
1276 }
1277
1278 // Validate required fields
1279 if agent.ID == "" {
1280 errors.Add(fieldPrefix+".id", "agent ID is required")
1281 }
1282 if agent.Name == "" {
1283 errors.Add(fieldPrefix+".name", "agent name is required")
1284 }
1285
1286 // Validate model type
1287 if agent.Model != LargeModel && agent.Model != SmallModel {
1288 errors.Add(fieldPrefix+".model", fmt.Sprintf("invalid model type: %s (must be 'large' or 'small')", agent.Model))
1289 }
1290
1291 // Validate allowed tools
1292 if agent.AllowedTools != nil {
1293 for i, tool := range agent.AllowedTools {
1294 validTool := slices.Contains(validTools, tool)
1295 if !validTool {
1296 errors.Add(fmt.Sprintf("%s.allowed_tools[%d]", fieldPrefix, i), fmt.Sprintf("unknown tool: %s", tool))
1297 }
1298 }
1299 }
1300
1301 // Validate MCP references
1302 if agent.AllowedMCP != nil {
1303 for mcpName := range agent.AllowedMCP {
1304 if _, exists := c.MCP[mcpName]; !exists {
1305 errors.Add(fieldPrefix+".allowed_mcp", fmt.Sprintf("referenced MCP '%s' not found", mcpName))
1306 }
1307 }
1308 }
1309
1310 // Validate LSP references
1311 if agent.AllowedLSP != nil {
1312 for _, lspName := range agent.AllowedLSP {
1313 if _, exists := c.LSP[lspName]; !exists {
1314 errors.Add(fieldPrefix+".allowed_lsp", fmt.Sprintf("referenced LSP '%s' not found", lspName))
1315 }
1316 }
1317 }
1318
1319 // Validate context paths (basic path validation)
1320 for i, contextPath := range agent.ContextPaths {
1321 if contextPath == "" {
1322 errors.Add(fmt.Sprintf("%s.context_paths[%d]", fieldPrefix, i), "context path cannot be empty")
1323 }
1324 // Check for invalid characters in path
1325 if strings.Contains(contextPath, "\x00") {
1326 errors.Add(fmt.Sprintf("%s.context_paths[%d]", fieldPrefix, i), "context path contains invalid characters")
1327 }
1328 }
1329
1330 // Validate known agents maintain their core properties
1331 if agentID == AgentCoder {
1332 if agent.Name != "Coder" {
1333 errors.Add(fieldPrefix+".name", "coder agent name cannot be changed")
1334 }
1335 if agent.Description != "An agent that helps with executing coding tasks." {
1336 errors.Add(fieldPrefix+".description", "coder agent description cannot be changed")
1337 }
1338 } else if agentID == AgentTask {
1339 if agent.Name != "Task" {
1340 errors.Add(fieldPrefix+".name", "task agent name cannot be changed")
1341 }
1342 if agent.Description != "An agent that helps with searching for context and finding implementation details." {
1343 errors.Add(fieldPrefix+".description", "task agent description cannot be changed")
1344 }
1345 expectedTools := []string{"glob", "grep", "ls", "sourcegraph", "view"}
1346 if agent.AllowedTools != nil && !slices.Equal(agent.AllowedTools, expectedTools) {
1347 errors.Add(fieldPrefix+".allowed_tools", "task agent allowed tools cannot be changed")
1348 }
1349 }
1350 }
1351}
1352
1353// validateOptions validates configuration options
1354func (c *Config) validateOptions(errors *ValidationErrors) {
1355 // Validate data directory
1356 if c.Options.DataDirectory == "" {
1357 errors.Add("options.data_directory", "data directory is required")
1358 }
1359
1360 // Validate context paths
1361 for i, contextPath := range c.Options.ContextPaths {
1362 if contextPath == "" {
1363 errors.Add(fmt.Sprintf("options.context_paths[%d]", i), "context path cannot be empty")
1364 }
1365 if strings.Contains(contextPath, "\x00") {
1366 errors.Add(fmt.Sprintf("options.context_paths[%d]", i), "context path contains invalid characters")
1367 }
1368 }
1369}
1370
1371// validateMCPs validates MCP configurations
1372func (c *Config) validateMCPs(errors *ValidationErrors) {
1373 if c.MCP == nil {
1374 c.MCP = make(map[string]MCP)
1375 }
1376
1377 for mcpName, mcpConfig := range c.MCP {
1378 fieldPrefix := fmt.Sprintf("mcp.%s", mcpName)
1379
1380 // Validate MCP type
1381 if mcpConfig.Type != MCPStdio && mcpConfig.Type != MCPSse {
1382 errors.Add(fieldPrefix+".type", fmt.Sprintf("invalid MCP type: %s (must be 'stdio' or 'sse')", mcpConfig.Type))
1383 }
1384
1385 // Validate based on type
1386 if mcpConfig.Type == MCPStdio {
1387 if mcpConfig.Command == "" {
1388 errors.Add(fieldPrefix+".command", "command is required for stdio MCP")
1389 }
1390 } else if mcpConfig.Type == MCPSse {
1391 if mcpConfig.URL == "" {
1392 errors.Add(fieldPrefix+".url", "URL is required for SSE MCP")
1393 }
1394 }
1395 }
1396}
1397
1398// validateLSPs validates LSP configurations
1399func (c *Config) validateLSPs(errors *ValidationErrors) {
1400 if c.LSP == nil {
1401 c.LSP = make(map[string]LSPConfig)
1402 }
1403
1404 for lspName, lspConfig := range c.LSP {
1405 fieldPrefix := fmt.Sprintf("lsp.%s", lspName)
1406
1407 if lspConfig.Command == "" {
1408 errors.Add(fieldPrefix+".command", "command is required for LSP")
1409 }
1410 }
1411}
1412
1413// validateCrossReferences validates cross-references between different config sections
1414func (c *Config) validateCrossReferences(errors *ValidationErrors) {
1415 // Validate that agents can use their assigned model types
1416 for agentID, agent := range c.Agents {
1417 fieldPrefix := fmt.Sprintf("agents.%s", agentID)
1418
1419 var preferredModel PreferredModel
1420 switch agent.Model {
1421 case LargeModel:
1422 preferredModel = c.Models.Large
1423 case SmallModel:
1424 preferredModel = c.Models.Small
1425 }
1426
1427 if preferredModel.Provider != "" {
1428 if providerConfig, exists := c.Providers[preferredModel.Provider]; exists {
1429 if providerConfig.Disabled {
1430 errors.Add(fieldPrefix+".model", fmt.Sprintf("agent cannot use model type '%s' because provider '%s' is disabled", agent.Model, preferredModel.Provider))
1431 }
1432 }
1433 }
1434 }
1435}
1436
1437// validateCompleteness validates that the configuration is complete and usable
1438func (c *Config) validateCompleteness(errors *ValidationErrors) {
1439 // Check for at least one valid, non-disabled provider
1440 hasValidProvider := false
1441 for _, providerConfig := range c.Providers {
1442 if !providerConfig.Disabled {
1443 hasValidProvider = true
1444 break
1445 }
1446 }
1447 if !hasValidProvider {
1448 errors.Add("providers", "at least one non-disabled provider is required")
1449 }
1450
1451 // Check that default agents exist
1452 if _, exists := c.Agents[AgentCoder]; !exists {
1453 errors.Add("agents", "coder agent is required")
1454 }
1455 if _, exists := c.Agents[AgentTask]; !exists {
1456 errors.Add("agents", "task agent is required")
1457 }
1458
1459 // Check that preferred models are set if providers exist
1460 if hasValidProvider {
1461 if c.Models.Large.ModelID == "" || c.Models.Large.Provider == "" {
1462 errors.Add("models.large", "large preferred model must be configured when providers are available")
1463 }
1464 if c.Models.Small.ModelID == "" || c.Models.Small.Provider == "" {
1465 errors.Add("models.small", "small preferred model must be configured when providers are available")
1466 }
1467 }
1468}
1469
1470// JSONSchemaExtend adds custom schema properties for AgentID
1471func (AgentID) JSONSchemaExtend(schema *jsonschema.Schema) {
1472 schema.Enum = []any{
1473 string(AgentCoder),
1474 string(AgentTask),
1475 }
1476}
1477
1478// JSONSchemaExtend adds custom schema properties for ModelType
1479func (ModelType) JSONSchemaExtend(schema *jsonschema.Schema) {
1480 schema.Enum = []any{
1481 string(LargeModel),
1482 string(SmallModel),
1483 }
1484}
1485
1486// JSONSchemaExtend adds custom schema properties for MCPType
1487func (MCPType) JSONSchemaExtend(schema *jsonschema.Schema) {
1488 schema.Enum = []any{
1489 string(MCPStdio),
1490 string(MCPSse),
1491 }
1492}