refactor: remove parseGradeFromStandard — grade is always explicit

Author: adnanrhussain

sdks/typescript/src/knowledge-graph/client.ts

@@ -90,8 +90,6 @@ export class KnowledgeGraphClient {
   }
 
   async getStandardsByGrade(grade: string): Promise<AcademicStandard[]> {
-    // Mathematical Practice standards excluded by normalizedStatementType=Standard —
-    // matching the original Python notebook behaviour.
     const url =
       `${KG_BASE_URL}/academic-standards?limit=500` +
       `&standardsFrameworkCaseIdentifierUUID=${CCSS_FRAMEWORK_UUID}` +

sdks/typescript/src/knowledge-graph/index.ts

@@ -1,3 +1,2 @@
 export type { AcademicStandard, LearningComponent, StandardInfo } from './types.js';
-export { parseGradeFromStandard } from './types.js';
 export { KnowledgeGraphClient } from './client.js';

sdks/typescript/src/knowledge-graph/types.ts

@@ -1,5 +1,3 @@
-import { ValidationError } from '../errors.js';
-
 // Generated spec types are in kg-api.d.ts — see npm run generate:kg-types.
 // We use string for normalizedStatementType and gradeLevel rather than the
 // spec's strict enum types so the interfaces remain compatible if the API
@@ -31,15 +29,3 @@ export interface StandardInfo {
   uuid: string;
   description?: string;
 }
-
-// ---------------------------------------------------------------------------
-
-const VALID_GRADES = new Set(['K', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12']);
-
-export function parseGradeFromStandard(code: string): string {
-  const match = code.match(/^(K|\d+)\./);
-  if (!match || !VALID_GRADES.has(match[1])) {
-    throw new ValidationError(`Cannot parse grade from standard code: "${code}"`);
-  }
-  return match[1];
-}

sdks/typescript/tests/unit/evaluators/math/standards-alignment.test.ts

@@ -3,7 +3,6 @@ import {
   MathStandardsAlignmentEvaluator,
   type MathStandardsAlignmentEvaluatorConfig,
 } from '../../../../src/evaluators/math/standards-alignment.js';
-import { parseGradeFromStandard } from '../../../../src/knowledge-graph/types.js';
 import { ConfigurationError, ValidationError, APIError } from '../../../../src/errors.js';
 import type { LLMProvider } from '../../../../src/providers/base.js';
 import type { KnowledgeGraphClient } from '../../../../src/knowledge-graph/client.js';
@@ -491,28 +490,3 @@ describe('MathStandardsAlignmentEvaluator - evaluateByGrade', () => {
   });
 });
 
-// ---------------------------------------------------------------------------
-// parseGradeFromStandard
-// ---------------------------------------------------------------------------
-
-describe('parseGradeFromStandard', () => {
-  it.each([
-    ['K.CC.A.1', 'K'],
-    ['1.OA.A.1', '1'],
-    ['3.MD.C.7.d', '3'],
-    ['10.NBT.A.1', '10'],
-    ['12.F.BF.1', '12'],
-  ])('%s → %s', (code, expected) => {
-    expect(parseGradeFromStandard(code)).toBe(expected);
-  });
-
-  it.each([
-    ['X.MD.C.7'],
-    ['ZZ.OA.A.1'],
-    ['no-dots'],
-    ['13.MD.C.7'],
-    ['HSA-APR.A.1'], // HS codes not supported — use grade 9/10/11/12 directly
-  ])('throws ValidationError for "%s"', (code) => {
-    expect(() => parseGradeFromStandard(code)).toThrow(ValidationError);
-  });
-});