Function getCompactionModelForAgent

pkg/teamloader/teamloader.go:613–664

getCompactionModelForAgent resolves the dedicated compaction (summary generation) model for an agent, if any. It returns the model named by the `compaction_model` field of the first of the agent's configured models that sets it, or nil when none do. It mirrors getTitleModelForAgent: the value may be

(ctx context.Context, cfg *latest.Config, a *latest.AgentConfig, runConfig *config.RuntimeConfig, providerRegistry *provider.Registry)

// sets it, or nil when none do. It mirrors getTitleModelForAgent: the value may
// be a named model from the models section or an inline "provider/model" spec.
func getCompactionModelForAgent(ctx context.Context, cfg *latest.Config, a *latest.AgentConfig, runConfig *config.RuntimeConfig, providerRegistry *provider.Registry) (provider.Provider, error) {
	var compactionRef string
	for name := range strings.SplitSeq(a.Model, ",") {
		if modelCfg, ok := cfg.Models[name]; ok && modelCfg.CompactionModel != "" {
			compactionRef = modelCfg.CompactionModel
			break
		}
	}
	if compactionRef == "" {
		return nil, nil
	}

	modelsStore, modelsStoreErr := runConfig.ModelsDevStore()

	modelCfg, exists := cfg.Models[compactionRef]
	if !exists {
		parsed, err := latest.ParseModelRef(compactionRef)
		if err != nil {
			return nil, fmt.Errorf("compaction model '%s' not found in configuration and is not a valid provider/model format", compactionRef)
		}
		modelCfg = parsed
	}
	modelCfg.Name = compactionRef

	maxTokens := &defaultMaxTokens
	if modelCfg.MaxTokens != nil {
		maxTokens = modelCfg.MaxTokens
	} else if modelsStoreErr == nil {
		m, err := modelsStore.GetModel(ctx, modelsdev.NewID(modelCfg.Provider, modelCfg.Model))
		if err == nil {
			maxTokens = &m.Limit.Output
		}
	}

	opts := []options.Opt{
		options.WithGateway(runConfig.ModelsGateway),
		options.WithStructuredOutput(a.StructuredOutput),
		options.WithProviders(cfg.Providers),
	}
	if maxTokens != nil {
		opts = append(opts, options.WithMaxTokens(*maxTokens))
	}
	if modelsStoreErr == nil {
		opts = append(opts, options.WithModelsDevStore(modelsStore))
	}

	model, err := providerRegistry.NewWithModels(ctx, &modelCfg, cfg.Models, runConfig.EnvProvider(), opts...)
	if err != nil {
		return nil, fmt.Errorf("failed to create compaction model '%s': %w", compactionRef, err)
	}
	return model, nil
}

// getToolsForAgent returns the tool definitions for an agent based on its
// configuration. Toolset instructions support ${...} JavaScript placeholders