lint+delete dead code

Author: RulaKhaled

packages/core/src/tracing/langgraph/index.ts

@@ -24,7 +24,6 @@ import { extractModelMetadata, extractTokenUsageFromMetadata, extractToolCalls }
  * - Create a `gen_ai.create_agent` span when compile() is called
  * - Automatically wrap the invoke() method on the returned compiled graph
  *
- * Uses a Proxy to preserve the original function's properties
  */
 export function instrumentStateGraphCompile(
   originalCompile: (...args: unknown[]) => CompiledGraph,
@@ -73,7 +72,6 @@ export function instrumentStateGraphCompile(
  * Instruments CompiledGraph's invoke method to create spans for agent invocation
  *
  * Creates a `gen_ai.invoke_agent` span when invoke() is called
- * Uses a Proxy to preserve the original function's properties
  */
 function instrumentCompiledGraphInvoke(
   originalInvoke: (...args: unknown[]) => Promise<unknown>,

packages/nextjs/src/config/webpack.ts

@@ -93,8 +93,6 @@ export function constructWebpackConfigFunction({
       rawNewConfig = userNextConfig.webpack(rawNewConfig, buildContext);
     }
 
-    // rawConfig.externals = ['openai']
-
     // This mutates `rawNewConfig` in place, but also returns it in order to switch its type to one in which
     // `newConfig.module.rules` is required, so we don't have to keep asserting its existence
     const newConfig = setUpModuleRules(rawNewConfig);

packages/node/src/integrations/tracing/langgraph/instrumentation.ts

@@ -39,6 +39,12 @@ export class SentryLangGraphInstrumentation extends InstrumentationBase<LangGrap
       exports => exports,
       [
         new InstrumentationNodeModuleFile(
+          /**
+           * In CJS, LangGraph packages re-export from dist/index.cjs files.
+           * Patching only the root module sometimes misses the real implementation or
+           * gets overwritten when that file is loaded. We add a file-level patch so that
+           * _patch runs again on the concrete implementation
+           */
           '@langchain/langgraph/dist/index.cjs',
           supportedVersions,
           this._patch.bind(this),