fix(cursor): grep content results keep their matched lines

packages/provider-cursor/src/server/adapter.test.ts

@@ -1,3 +1,8 @@
+// @effect-diagnostics nodeBuiltinImport:off -- The grep converter is read synchronously from the installed SDK chunk.
+import * as NodeFS from "node:fs";
+import * as NodeModule from "node:module";
+import * as NodePath from "node:path";
+
 import * as NodeServices from "@effect/platform-node/NodeServices";
 import { assert, describe, it } from "@effect/vitest";
 import type { InteractionUpdate } from "@cursor/sdk";
@@ -35,6 +40,27 @@ import {
 import * as CursorAgentSdk from "./CursorAgentSdk.ts";
 import { ConfigurationError } from "./sdk.ts";
 
+// The SDK does not export its grep result converter, so find it in the installed build's chunks.
+const loadInstalledCursorGrepResultConverter = (build: "esm" | "cjs") => {
+  const sdkEntry = NodeModule.createRequire(import.meta.url).resolve("@cursor/sdk");
+  const buildDir = NodePath.join(NodePath.dirname(sdkEntry), "..", build);
+  const anchorPattern =
+    /function [\w$]+\(e\)\{if\(e\?\.result\?\.case\)switch\(e\.result\.case\)\{case"content":return\{type:"content"/;
+  const chunk = NodeFS.readdirSync(buildDir)
+    .filter((name) => name.endsWith(".js"))
+    .map((name) => NodeFS.readFileSync(NodePath.join(buildDir, name), "utf8"))
+    .find((source) => anchorPattern.test(source));
+  assert.isDefined(chunk, `Cursor SDK grep result converter not found in ${buildDir}`);
+  const anchor = chunk.search(anchorPattern);
+  let depth = 0;
+  let end = chunk.indexOf("{", anchor);
+  for (; end < chunk.length; end++) {
+    if (chunk[end] === "{") depth++;
+    if (chunk[end] === "}" && --depth === 0) break;
+  }
+  return new Function(`return (${chunk.slice(anchor, end + 1)})`)() as (result: unknown) => unknown;
+};
+
 describe("CursorAdapterV2", () => {
   it.effect.each([
     { status: "finished", model: undefined, lateModel: undefined },
@@ -1714,4 +1740,55 @@ describe("CursorAdapterV2", () => {
       },
     );
   });
+
+  it.each(["esm", "cjs"] as const)(
+    "keeps grouped grep content match text, lines, and totals in the %s Cursor SDK build",
+    (build) => {
+      const convertGrepResult = loadInstalledCursorGrepResultConverter(build);
+
+      assert.deepEqual(
+        convertGrepResult({
+          result: {
+            case: "content",
+            value: {
+              matches: [
+                {
+                  file: "src/one.ts",
+                  matches: [
+                    { lineNumber: 10, content: "before one", isContextLine: true },
+                    { lineNumber: 11, content: "needle one", isContextLine: false },
+                    { lineNumber: 12, content: "after one", isContextLine: true },
+                  ],
+                },
+                {
+                  file: "src/two.ts",
+                  matches: [{ lineNumber: 3, content: "needle two", isContextLine: false }],
+                },
+              ],
+              totalLines: 4,
+              totalMatchedLines: 7,
+              clientTruncated: true,
+              ripgrepTruncated: false,
+            },
+          },
+        }),
+        {
+          type: "content",
+          output: {
+            matches: [
+              {
+                file: "src/one.ts",
+                lineNumber: 11,
+                line: "needle one",
+                beforeContext: ["before one"],
+                afterContext: ["after one"],
+              },
+              { file: "src/two.ts", lineNumber: 3, line: "needle two" },
+            ],
+            totalMatches: 7,
+          },
+        },
+      );
+    },
+  );
 });

pnpm-workspace.yaml

@@ -394,6 +394,8 @@ patchedDependencies:
   # Observe the owned host exit independently of descendants retaining its stdio.
   "@muse-code/sdk@1.4.6": patches/@muse-code__sdk@1.4.6.patch
   app-builder-lib@26.16.1: patches/app-builder-lib@26.16.1.patch
+  # Grep content results are grouped per file; the converter read them as flat matches (#24919).
+  "@cursor/sdk@1.0.38": patches/@cursor__sdk@1.0.38.patch
 
 peerDependencyRules:
   allowAny: