@langchain/anthropic
Version:
Anthropic integrations for LangChain.js
40 lines (39 loc) • 2.32 kB
JavaScript
//#region src/utils/params.ts
function isThinkingEnabled(thinking) {
return thinking.type === "enabled" || thinking.type === "adaptive";
}
function isOpus47Model(model) {
return model?.startsWith("claude-opus-4-7") ?? false;
}
function getTaskBudgetBetas(model, outputConfig) {
const hasTaskBudget = outputConfig && typeof outputConfig === "object" && "task_budget" in outputConfig && outputConfig.task_budget != null;
return isOpus47Model(model) && hasTaskBudget ? ["task-budgets-2026-03-13"] : [];
}
function validateInvocationParamCompatibility(fields) {
const { model, thinking, topK, topP, temperature } = fields;
const opus47 = isOpus47Model(model);
if (opus47 && thinking.type === "enabled") throw new Error("thinking.type=\"enabled\" is not supported for claude-opus-4-7; use thinking.type=\"adaptive\" instead");
if (opus47 && typeof thinking === "object" && thinking != null && "budget_tokens" in thinking) throw new Error("thinking.budget_tokens is not supported for claude-opus-4-7; use outputConfig.effort instead");
if (opus47) {
if (topK !== void 0) throw new Error("topK is not supported for claude-opus-4-7; omit topK/topP/temperature or use model prompting instead");
if (topP !== void 0 && topP !== 1) throw new Error("topP is not supported for claude-opus-4-7 when set to non-default values");
if (temperature !== void 0 && temperature !== 1) throw new Error("temperature is not supported for claude-opus-4-7 when set to non-default values");
}
if (isThinkingEnabled(thinking)) {
if (topK !== void 0) throw new Error("topK is not supported when thinking is enabled");
if (topP !== void 0) throw new Error("topP is not supported when thinking is enabled");
if (temperature !== void 0 && temperature !== 1) throw new Error("temperature is not supported when thinking is enabled");
}
}
function getSamplingParams(fields) {
const { model, thinking, topK, topP, temperature } = fields;
const output = {};
if (isThinkingEnabled(thinking) || isOpus47Model(model)) return output;
if (temperature !== void 0) output.temperature = temperature;
if (topK !== void 0) output.top_k = topK;
if (topP !== void 0) output.top_p = topP;
return output;
}
//#endregion
export { getSamplingParams, getTaskBudgetBetas, validateInvocationParamCompatibility };
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