json mcp response

[huozhi]

No description provided.

[nextjs-bot]

Failing test suites

Commit: 4d0a001 | About building and testing Next.js

pnpm test-dev test/development/mcp-server/mcp-server-get-errors.test.ts (job)

• mcp-server get_errors tool > should capture next.config errors and clear when fixed (DD)

Expand output

● mcp-server get_errors tool › should capture next.config errors and clear when fixed

expect(received).toHaveLength(expected)

Matcher error: received value must have a length property whose value must be a number

Received has value: undefined

  226 |       const fixedErrorsText = await callGetErrors(sessionId)
  227 |       const fixedErrors = JSON.parse(fixedErrorsText)
> 228 |       expect(fixedErrors.configErrors).toHaveLength(0)
      |                                        ^
  229 |       expect(fixedErrors.sessionErrors).toHaveLength(0)
  230 |     })
  231 |   })

  at toHaveLength (development/mcp-server/mcp-server-get-errors.test.ts:228:40)
  at retry (lib/next-test-utils.ts:831:14)
  at Object.<anonymous> (development/mcp-server/mcp-server-get-errors.test.ts:224:5)

[vercel]

Additional Suggestion:

JSON.stringify formatting is inconsistent across MCP tools - some use pretty-printing with indentation while others use compact format

[nextjs-bot]

Stats from current PR

✅ No significant changes detected

📊 All Metrics

📖 Metrics Glossary

Dev Server Metrics:

• Listen = TCP port starts accepting connections
• First Request = HTTP server returns successful response
• Cold = Fresh build (no cache)
• Warm = With cached build artifacts

Build Metrics:

• Fresh = Clean build (no .next directory)
• Cached = With existing .next directory

Change Thresholds:

• Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
• Size: Changes < 1KB AND < 1% are insignificant
• All other changes are flagged to catch regressions

⚡ Dev Server

Metric	Canary	PR	Change	Trend
Cold (Listen)	456ms	455ms	✓	▁▁▁▁▁
Cold (Ready in log)	437ms	438ms	✓	▁▁▁▁▁
Cold (First Request)	1.223s	1.188s	✓	▂▁▃▃▃
Warm (Listen)	457ms	456ms	✓	▁▂▁▁▁
Warm (Ready in log)	442ms	442ms	✓	▁▁▁▁▁
Warm (First Request)	341ms	342ms	✓	▁▂▂▂▁

⚡ Production Builds

Metric	Canary	PR	Change	Trend
Fresh Build	4.292s	4.388s	✓	▁▂▁▁▁
Cached Build	4.359s	4.365s	✓	▁▁▁▁▁

📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric	Canary	PR	Change	Trend
node_modules Size	461 MB	461 MB	✓	▁▁▁▁▁

📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **432 kB** → **432 kB** ✅ -32 B

82 files with content-based hashes (individual files not comparable between builds)

Server

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	762 B	768 B	✓
Total	762 B	768 B	⚠️ +6 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	450 B	451 B	✓
Total	450 B	451 B	⚠️ +1 B

🔄 Shared (bundler-independent)

Runtimes

	Canary	PR	Change
app-page-exp...dev.js gzip	306 kB	306 kB	✓
app-page-exp..prod.js gzip	163 kB	163 kB	✓
app-page-tur...dev.js gzip	306 kB	306 kB	✓
app-page-tur..prod.js gzip	163 kB	163 kB	✓
app-page-tur...dev.js gzip	303 kB	303 kB	✓
app-page-tur..prod.js gzip	161 kB	161 kB	✓
app-page.run...dev.js gzip	303 kB	303 kB	✓
app-page.run..prod.js gzip	161 kB	161 kB	✓
app-route-ex...dev.js gzip	69.4 kB	69.4 kB	✓
app-route-ex..prod.js gzip	48.2 kB	48.2 kB	✓
app-route-tu...dev.js gzip	69.5 kB	69.5 kB	✓
app-route-tu..prod.js gzip	48.2 kB	48.2 kB	✓
app-route-tu...dev.js gzip	69.1 kB	69.1 kB	✓
app-route-tu..prod.js gzip	48 kB	48 kB	✓
app-route.ru...dev.js gzip	69 kB	69 kB	✓
app-route.ru..prod.js gzip	48 kB	48 kB	✓
dist_client_...dev.js gzip	324 B	324 B	✓
dist_client_...dev.js gzip	326 B	326 B	✓
dist_client_...dev.js gzip	318 B	318 B	✓
dist_client_...dev.js gzip	317 B	317 B	✓
pages-api-tu...dev.js gzip	42.5 kB	42.5 kB	✓
pages-api-tu..prod.js gzip	32.3 kB	32.3 kB	✓
pages-api.ru...dev.js gzip	42.5 kB	42.5 kB	✓
pages-api.ru..prod.js gzip	32.3 kB	32.3 kB	✓
pages-turbo....dev.js gzip	51.8 kB	51.8 kB	✓
pages-turbo...prod.js gzip	38.8 kB	38.8 kB	✓
pages.runtim...dev.js gzip	51.8 kB	51.8 kB	✓
pages.runtim..prod.js gzip	38.8 kB	38.8 kB	✓
server.runti..prod.js gzip	62.3 kB	62.3 kB	✓
Total	2.73 MB	2.73 MB	⚠️ +4 B