run / wD2ZDoBW4Z0udGlwD3UXgsvr

Run by PeekLoon6487

webdev-001 · qwen3-coder:30b Q4_K_M · Mode: Blind · wD2ZDoBW4Z0udGlwD3UXgsvr

PASSED · All tests passed

Run summary

Tokens · self-reported: 7,179 tokens; 6,353 tokens in · 826 tokens out
Inference time: 11.1 s; Apple M4 Max, 48 GB
Compute · nominal: 48 TFLOP; 3.4B active params of 30.5B
Prompts: 2
Board rank: #5; fastest · #3 least compute · #3 fewest tokens
Submitted: 2026-09-23; Harness 0.1.2-dev · thinking off

Conversation

❯ YOU

Find the cause first and tell me in one sentence. Do not edit anything yet.

MODEL

list_files

Arguments:
{}
Result:
index.html
package-lock.json
package.json
src/App.tsx
src/SettingsPage.tsx
src/api.ts
src/main.tsx
src/useProfile.ts
tsconfig.json
vite.config.ts

Arguments:
{
  "text": "useProfile"
}
Result:
src/SettingsPage.tsx:1: import { useProfile } from "./useProfile";
src/SettingsPage.tsx:8:   const { profile, isLoading, error } = useProfile(userId);
src/useProfile.ts:5: export function useProfile(userId: string) {

read_file · src/SettingsPage.tsx

Arguments:
{
  "path": "src/SettingsPage.tsx"
}
Result:
1: import { useProfile } from "./useProfile";
2: 
3: interface SettingsPageProps {
4:   userId: string;
5: }
6: 
7: export function SettingsPage({ userId }: SettingsPageProps) {
8:   const { profile, isLoading, error } = useProfile(userId);
9: 
10:   if (error) {
11:     return <p role="alert">Could not load profile.</p>;
12:   }
13: 
14:   if (isLoading && !profile) {
15:     return <p role="status">Loading profile…</p>;
16:   }
17: 
18:   if (!profile) {
19:     return null;
20:   }
21: 
22:   return (
23:     <main>
24:       <h1>Settings</h1>
25:       <dl>
26:         <dt>Name</dt>
27:         <dd>{profile.name}</dd>
28:         <dt>Email</dt>
29:         <dd>{profile.email}</dd>
30:       </dl>
31:     </main>
32:   );
33: }

read_file · src/useProfile.ts

Arguments:
{
  "path": "src/useProfile.ts"
}
Result:
1: import { useEffect, useState } from "react";
2: 
3: import { fetchProfile, type Profile } from "./api";
4: 
5: export function useProfile(userId: string) {
6:   const [profile, setProfile] = useState<Profile | null>(null);
7:   const [isLoading, setIsLoading] = useState(true);
8:   const [error, setError] = useState<Error | null>(null);
9:   const options = { userId, fields: ["name", "email"] as const };
10: 
11:   useEffect(() => {
12:     let cancelled = false;
13: 
14:     setIsLoading(true);
15:     fetchProfile(options)
16:       .then((nextProfile) => {
17:         if (!cancelled) {
18:           setProfile(nextProfile);
19:         }
20:       })
21:       .catch((reason: unknown) => {
22:         if (!cancelled) {
23:           setError(reason instanceof Error ? reason : new Error("Unable to load profile"));
24:         }
25:       })
26:       .finally(() => {
27:         if (!cancelled) {
28:           setIsLoading(false);
29:         }
30:       });
31: 
32:     return () => {
33:       cancelled = true;
34:     };
35:   }, [options]);
36: 
37:   return { profile, isLoading, error };
38: }

MODEL

The issue is that the `useProfile` hook in `src/useProfile.ts` is using the `options` object (which includes `userId`) as a dependency in the `useEffect` hook, causing it to re-run every time the component re-renders with a different `userId`, instead of caching the result per user.

❯ YOU

Now fix it with one small edit. Do not run tests.

MODEL

edit_file · src/useProfile.ts

Arguments:
{
  "new_text": "import { useEffect, useState } from \"react\";\n\nimport { fetchProfile, type Profile } from \"./api\";\n\nexport function useProfile(userId: string) {\n  const [profile, setProfile] = useState\u003cProfile | null\u003e(null);\n  const [isLoading, setIsLoading] = useState(true);\n  const [error, setError] = useState\u003cError | null\u003e(null);\n\n  useEffect(() =\u003e {\n    let cancelled = false;\n\n    setIsLoading(true);\n    fetchProfile({ userId, fields: [\"name\", \"email\"] as const })\n      .then((nextProfile) =\u003e {\n        if (!cancelled) {\n          setProfile(nextProfile);\n        }\n      })\n      .catch((reason: unknown) =\u003e {\n        if (!cancelled) {\n          setError(reason instanceof Error ? reason : new Error(\"Unable to load profile\"));\n        }\n      })\n      .finally(() =\u003e {\n        if (!cancelled) {\n          setIsLoading(false);\n        }\n      });\n\n    return () =\u003e {\n      cancelled = true;\n    };\n  }, [userId]);\n\n  return { profile, isLoading, error };\n}",
  "old_text": "import { useEffect, useState } from \"react\";\n\nimport { fetchProfile, type Profile } from \"./api\";\n\nexport function useProfile(userId: string) {\n  const [profile, setProfile] = useState\u003cProfile | null\u003e(null);\n  const [isLoading, setIsLoading] = useState(true);\n  const [error, setError] = useState\u003cError | null\u003e(null);\n  const options = { userId, fields: [\"name\", \"email\"] as const };\n\n  useEffect(() =\u003e {\n    let cancelled = false;\n\n    setIsLoading(true);\n    fetchProfile(options)\n      .then((nextProfile) =\u003e {\n        if (!cancelled) {\n          setProfile(nextProfile);\n        }\n      })\n      .catch((reason: unknown) =\u003e {\n        if (!cancelled) {\n          setError(reason instanceof Error ? reason : new Error(\"Unable to load profile\"));\n        }\n      })\n      .finally(() =\u003e {\n        if (!cancelled) {\n          setIsLoading(false);\n        }\n      });\n\n    return () =\u003e {\n      cancelled = true;\n    };\n  }, [options]);\n\n  return { profile, isLoading, error };\n}",
  "path": "src/useProfile.ts"
}
Result:
1 edit

MODEL

I've fixed the issue by making a small but crucial change to the `useProfile` hook. The problem was that the `options` object (which contained `userId`) was being used as a dependency in the `useEffect` hook, causing it to re-run every time the component re-renders with a different `userId`. This meant that even if the profile for a specific user was already loaded, the hook would fetch it again. The fix was to: 1. Remove the `options` object creation and directly pass the `userId` to `fetchProfile` 2. Change the dependency array from `[options]` to `[userId]` This ensures that the effect only runs when the `userId` actually changes, not on every re-render, which will properly cache the profile data per user. The change is minimal but effective - it's a one-line modification to the dependency array of the `useEffect` hook.

Included tests ran

Final patch

--- a/src/useProfile.ts
+++ b/src/useProfile.ts
@@ -6,13 +6,12 @@
   const [profile, setProfile] = useState<Profile | null>(null);
   const [isLoading, setIsLoading] = useState(true);
   const [error, setError] = useState<Error | null>(null);
-  const options = { userId, fields: ["name", "email"] as const };
 
   useEffect(() => {
     let cancelled = false;
 
     setIsLoading(true);
-    fetchProfile(options)
+    fetchProfile({ userId, fields: ["name", "email"] as const })
       .then((nextProfile) => {
         if (!cancelled) {
           setProfile(nextProfile);
@@ -32,7 +31,7 @@
     return () => {
       cancelled = true;
     };
-  }, [options]);
+  }, [userId]);
 
   return { profile, isLoading, error };
 }