refactor: rename tools

src/agent-tools/index.ts

@@ -4,7 +4,7 @@
  */
 
 export { createEvaluateInEngine262Tool } from "./evaluateInEngine262";
+export { createGetSectionContentTool } from "./getSectionContent";
 export { createGraphExplorerTool } from "./graphExplorer";
 export { type RerankResult, rerankDocuments } from "./reranker";
-export { createSectionRetrieverTool } from "./sectionRetriever";
-export { createSpecRetrieverTool } from "./specRetriever";
+export { createSearchSpecSectionsTool } from "./searchSpecSections";