refine web search model select

[iceljc]

PR Type

Enhancement

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Description

• Add dynamic web search model selection logic

• Introduce IsDefault flag for web search settings

• Replace hardcoded model with configurable selection

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Diagram Walkthrough

flowchart LR
  A["LlmModelSetting"] -- "adds IsDefault flag" --> B["WebSearchSetting"]
  C["WebIntelligentSearchFn"] -- "queries models" --> D["LlmProviderService"]
  D -- "returns models" --> E["Model Selection Logic"]
  E -- "selects default or fallback" --> F["ChatCompletion"]

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File Walkthrough

	Relevant files
Configuration changes	LlmModelSetting.cs Add IsDefault flag to WebSearchSetting                                      src/Infrastructure/BotSharp.Abstraction/MLTasks/Settings/LlmModelSetting.cs Add IsDefault boolean property to WebSearchSetting class +1/-0
Enhancement	WebIntelligentSearchFn.cs Implement dynamic web search model selection                          src/Infrastructure/BotSharp.Core/WebSearch/Functions/WebIntelligentSearchFn.cs Replace hardcoded model with dynamic selection logic Query provider models and select based on IsDefault flag Add fallback mechanism for model selection Set default provider and model as constants +9/-1

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[qodo-merge-pro]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Null Handling Ensure GetProviderModels cannot return null and that model entries have non-null Name before selection; otherwise the fallback may still propagate a null Name into CompletionProvider. var models = llmProviderService.GetProviderModels(provider); var webSearchModel = models.FirstOrDefault(x => x.WebSearch?.IsDefault == true)?.Name ?? models.FirstOrDefault(x => x.WebSearch != null)?.Name ?? defaultModel; var completion = CompletionProvider.GetChatCompletion(_services, provider: provider, model: webSearchModel); var response = await completion.GetChatCompletions(agent, dialogs); Hardcoded Defaults The provider and default model are hardcoded; consider sourcing from configuration to avoid coupling and ease future changes or multi-provider scenarios. var provider = "openai"; var defaultModel = "gpt-4o-mini-search-preview"; var llmProviderService = _services.GetRequiredService<ILlmProviderService>(); var models = llmProviderService.GetProviderModels(provider); var webSearchModel = models.FirstOrDefault(x => x.WebSearch?.IsDefault == true)?.Name ?? models.FirstOrDefault(x => x.WebSearch != null)?.Name ?? defaultModel; var completion = CompletionProvider.GetChatCompletion(_services, provider: provider, model: webSearchModel); var response = await completion.GetChatCompletions(agent, dialogs); Multiple Defaults Clarify behavior if multiple models have WebSearch.IsDefault=true; current FirstOrDefault selection may be nondeterministic without ordering. public bool IsDefault { get; set; } public string? SearchContextSize { get; set; } }

[qodo-merge-pro]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
Possible issue	Add null and empty safeguards Guard against null or empty results from GetProviderModels to avoid NullReferenceException. Also ensure webSearchModel is non-empty before passing to the completion provider, otherwise use the defaultModel. src/Infrastructure/BotSharp.Core/WebSearch/Functions/WebIntelligentSearchFn.cs [56-65] var provider = "openai"; var defaultModel = "gpt-4o-mini-search-preview"; var llmProviderService = _services.GetRequiredService<ILlmProviderService>(); -var models = llmProviderService.GetProviderModels(provider); +var models = llmProviderService.GetProviderModels(provider) ?? Enumerable.Empty<LlmModelSetting>(); + var webSearchModel = models.FirstOrDefault(x => x.WebSearch?.IsDefault == true)?.Name ?? models.FirstOrDefault(x => x.WebSearch != null)?.Name ?? defaultModel; +if (string.IsNullOrWhiteSpace(webSearchModel)) +{ + webSearchModel = defaultModel; +} + var completion = CompletionProvider.GetChatCompletion(_services, provider: provider, model: webSearchModel); Apply / Chat Suggestion importance[1-10]: 7 __ Why: The suggestion correctly identifies that GetProviderModels could return null, causing a NullReferenceException, and also handles the edge case of a model having an empty name, improving the code's robustness.	Medium
General	Filter by compatible model type Prefer stricter selection by ensuring the model Type supports chat completions before choosing it for web search. This avoids selecting an embedding or incompatible model accidentally marked with WebSearch. src/Infrastructure/BotSharp.Core/WebSearch/Functions/WebIntelligentSearchFn.cs [61-63] -var webSearchModel = models.FirstOrDefault(x => x.WebSearch?.IsDefault == true)?.Name - ?? models.FirstOrDefault(x => x.WebSearch != null)?.Name - ?? defaultModel; +var webSearchModel = models + .Where(x => x.Type == LlmModelType.Chat) + .FirstOrDefault(x => x.WebSearch?.IsDefault == true)?.Name + ?? models.Where(x => x.Type == LlmModelType.Chat) + .FirstOrDefault(x => x.WebSearch != null)?.Name + ?? defaultModel; Apply / Chat Suggestion importance[1-10]: 6 __ Why: The suggestion improves the model selection logic by adding a filter for LlmModelType.Chat, making the selection more robust by preventing the use of incompatible model types.	Low
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