Function fetchProviderModels

cmd/root/models.go:286–312

fetchProviderModels fetches the model list from a provider's own /v1/models endpoint. Only works for alias providers with a predefined BaseURL. The request: - Uses httpclient.NewHTTPClient so it carries the Cagent User-Agent and OpenTelemetry tracing like every other outbound call. - Sends Bearer a

(ctx context.Context, providerName string, env environment.Provider)

//     provider that requires the API key on /v1/models.
//   - Bounded by listTimeout (5s) so a slow endpoint cannot stall `models list`.
func fetchProviderModels(ctx context.Context, providerName string, env environment.Provider) []string {
	alias, ok := provider.LookupAlias(providerName)
	if !ok || alias.BaseURL == "" {
		return nil
	}

	modelsURL := strings.TrimRight(alias.BaseURL, "/") + "/models"

	req, err := http.NewRequestWithContext(ctx, http.MethodGet, modelsURL, http.NoBody)
	if err != nil {
		slog.WarnContext(ctx, "failed to create request for provider models", "url", modelsURL, "error", err)
		return nil
	}

	// Send the alias's declared API key so providers that require it on
	// /v1/models authenticate the request instead of returning 401/403.
	if alias.TokenEnvVar != "" {
		if token, _ := env.Get(ctx, alias.TokenEnvVar); token != "" {
			req.Header.Set("Authorization", "Bearer "+token)
		}
	}

	ctx, cancel := context.WithTimeout(ctx, listTimeout)
	defer cancel()

	return dispatchModelsRequest(ctx, req, httpclient.NewHTTPClient(ctx))
}

// fetchModelsFromURL fetches and parses an OpenAI-compatible models list from
// the given URL using the supplied client. It is a thin wrapper around