Add extracted source directory and README navigation

extracted-source/node_modules/@anthropic-ai/sdk/lib/stainless-helper-header.mjs

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+/**
+ * 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 {};
+}
+//# sourceMappingURL=stainless-helper-header.mjs.map