@anthropic-ai/sdk
Version:
The official TypeScript library for the Anthropic API
63 lines • 2.15 kB
JavaScript
/**
* Shared utilities for tracking SDK helper usage.
*/
/**
* Symbol used to mark objects created by SDK helpers for tracking.
* The value is the helper name (e.g., 'mcpTool', 'betaZodTool').
*/
export const SDK_HELPER_SYMBOL = Symbol('anthropic.sdk.stainlessHelper');
export function wasCreatedByStainlessHelper(value) {
return typeof value === 'object' && value !== null && SDK_HELPER_SYMBOL in value;
}
/**
* Collects helper names from tools and messages arrays.
* Returns a deduplicated array of helper names found.
*/
export function collectStainlessHelpers(tools, messages) {
const helpers = new Set();
// Collect from tools
if (tools) {
for (const tool of tools) {
if (wasCreatedByStainlessHelper(tool)) {
helpers.add(tool[SDK_HELPER_SYMBOL]);
}
}
}
// Collect from messages and their content blocks
if (messages) {
for (const message of messages) {
if (wasCreatedByStainlessHelper(message)) {
helpers.add(message[SDK_HELPER_SYMBOL]);
}
if (Array.isArray(message.content)) {
for (const block of message.content) {
if (wasCreatedByStainlessHelper(block)) {
helpers.add(block[SDK_HELPER_SYMBOL]);
}
}
}
}
}
return Array.from(helpers);
}
/**
* Builds x-stainless-helper header value from tools and messages.
* Returns an empty object if no helpers are found.
*/
export function stainlessHelperHeader(tools, messages) {
const helpers = collectStainlessHelpers(tools, messages);
if (helpers.length === 0)
return {};
return { 'x-stainless-helper': helpers.join(', ') };
}
/**
* Builds x-stainless-helper header value from a file object.
* Returns an empty object if the file is not marked with a helper.
*/
export function stainlessHelperHeaderFromFile(file) {
if (wasCreatedByStainlessHelper(file)) {
return { 'x-stainless-helper': file[SDK_HELPER_SYMBOL] };
}
return {};
}
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