Prompt

A prompt pulled from the LangSmith hub that can be invoked with input variables. This is the primary object returned by [PromptClient.pull]. It wraps a parsed prompt manifest and provides an [invoke] method to format the prompt with variable values, producing a [PromptValue] that can then be converted to provider-specific formats using [convertToOpenAIParams] or [convertToAnthropicParams].

Example (Java)

PromptClient promptClient = PromptClient.create(langsmithClient);
Prompt prompt = promptClient.pull("my-org/joke-generator");
PromptValue formattedPrompt = prompt.invoke(Map.of("topic", "cats"));
// OpenAI
ChatCompletion completion = openai.chat().completions().create(
    convertToOpenAIParams(formattedPrompt)
        .model(ChatModel.GPT_4_1_MINI)
        .build());
// Anthropic
Message message = anthropic.messages().create(
    convertToAnthropicParams(formattedPrompt)
        .model(Model.CLAUDE_SONNET_4_6)
        .maxTokens(1024)
        .build());