Make automodel batch size configurable (#2985)

extensions/ql-vscode/src/config.ts

@@ -702,6 +702,10 @@ export function showQueriesPanel(): boolean {
 const MODEL_SETTING = new Setting("model", ROOT_SETTING);
 const FLOW_GENERATION = new Setting("flowGeneration", MODEL_SETTING);
 const LLM_GENERATION = new Setting("llmGeneration", MODEL_SETTING);
+const LLM_GENERATION_BATCH_SIZE = new Setting(
+  "llmGenerationBatchSize",
+  MODEL_SETTING,
+);
 const EXTENSIONS_DIRECTORY = new Setting("extensionsDirectory", MODEL_SETTING);
 const SHOW_MULTIPLE_MODELS = new Setting("showMultipleModels", MODEL_SETTING);
 
@@ -725,6 +729,14 @@ export class ModelConfigListener extends ConfigListener implements ModelConfig {
     return !!LLM_GENERATION.getValue<boolean>();
   }
 
+  /**
+   * Limits the number of candidates we send to the model in each request to avoid long requests.
+   * Note that the model may return fewer than this number of candidates.
+   */
+  public get llmGenerationBatchSize(): number {
+    return LLM_GENERATION_BATCH_SIZE.getValue<number | null>() || 10;
+  }
+
   public getExtensionsDirectory(languageId: string): string | undefined {
     return EXTENSIONS_DIRECTORY.getValue<string>({
       languageId,

extensions/ql-vscode/src/model-editor/auto-modeler.ts

@@ -17,11 +17,7 @@ import { DatabaseItem } from "../databases/local-databases";
 import { Mode } from "./shared/mode";
 import { CancellationTokenSource } from "vscode";
 import { ModelingStore } from "./modeling-store";
-
-// Limit the number of candidates we send to the model in each request
-// to avoid long requests.
-// Note that the model may return fewer than this number of candidates.
-const candidateBatchSize = 20;
+import { ModelConfigListener } from "../config";
 
 /**
  * The auto-modeler holds state around auto-modeling jobs and allows
@@ -36,6 +32,7 @@ export class AutoModeler {
     private readonly app: App,
     private readonly cliServer: CodeQLCliServer,
     private readonly queryRunner: QueryRunner,
+    private readonly modelConfig: ModelConfigListener,
     private readonly modelingStore: ModelingStore,
     private readonly queryStorageDir: string,
     private readonly databaseItem: DatabaseItem,
@@ -109,6 +106,9 @@ export class AutoModeler {
     cancellationTokenSource: CancellationTokenSource,
   ): Promise<void> {
     void extLogger.log(`Modeling package ${packageName}`);
+
+    const candidateBatchSize = this.modelConfig.llmGenerationBatchSize;
+
     await withProgress(async (progress) => {
       // Fetch the candidates to send to the model
       const allCandidateMethods = getCandidates(mode, methods, modeledMethods);

extensions/ql-vscode/src/model-editor/model-editor-view.ts

@@ -76,6 +76,7 @@ export class ModelEditorView extends AbstractWebview<
       app,
       cliServer,
       queryRunner,
+      this.modelConfig,
       modelingStore,
       queryStorageDir,
       databaseItem,