[instant] Include declaration location of instant config in validation errors by eps1lon · Pull Request #90169 · vercel/next.js

eps1lon · 2026-02-19T00:25:41Z

Works in server terminal. Needs facebook/react#35810 to work in the Redbox.

There's an additional stackframe from Next.js that should be ignore-listed. Fixing in #90200

…ion errors

nextjs-bot · 2026-02-19T00:48:02Z

Stats from current PR

🔴 1 regression

Metric	Canary	PR	Change	Trend
node_modules Size	473 MB	473 MB	🔴 +70.1 kB (+0%)	▁▁▁▁▁

📊 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)	506ms	508ms	✓	▁▁▁▁▁
Cold (Ready in log)	464ms	462ms	✓	▁▁▂▁▂
Cold (First Request)	911ms	906ms	✓	▁▃▄▃▄
Warm (Listen)	505ms	507ms	✓	▁▁▁▁▁
Warm (Ready in log)	461ms	463ms	✓	▁▁▁▁▁
Warm (First Request)	368ms	354ms	✓	▁▂▁▂▁

📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric	Canary	PR	Change	Trend
Cold (Listen)	456ms	456ms	✓	▁▁▁▁▄
Cold (Ready in log)	436ms	435ms	✓	▃▃▂▃▂
Cold (First Request)	1.856s	1.851s	✓	▂▂▁▂▂
Warm (Listen)	456ms	455ms	✓	▁▁▁▁▅
Warm (Ready in log)	436ms	435ms	✓	▃▂▃▃▁
Warm (First Request)	1.887s	1.858s	✓	▁▁▁▁▁

⚡ Production Builds

Metric	Canary	PR	Change	Trend
Fresh Build	4.244s	4.221s	✓	▂▁▁▁▁
Cached Build	4.236s	4.251s	✓	▂▁▁▁▁

📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric	Canary	PR	Change	Trend
Fresh Build	13.867s	13.903s	✓	▁▁▁▁▂
Cached Build	13.970s	13.960s	✓	▁▁▁▁▂
node_modules Size	473 MB	473 MB	🔴 +70.1 kB (+0%)	▁▁▁▁▁

📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **398 kB** → **398 kB** ⚠️ +93 B

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

Server

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	760 B	761 B	✓
Total	760 B	761 B	⚠️ +1 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	451 B	451 B	✓
Total	451 B	451 B	✓

📦 Webpack

Client

Main Bundles

	Canary	PR	Change
5528-HASH.js gzip	5.47 kB	N/A	-
6280-HASH.js gzip	57.2 kB	N/A	-
6335.HASH.js gzip	169 B	N/A	-
912-HASH.js gzip	4.53 kB	N/A	-
e8aec2e4-HASH.js gzip	62.6 kB	N/A	-
framework-HASH.js gzip	59.7 kB	59.7 kB	✓
main-app-HASH.js gzip	255 B	254 B	✓
main-HASH.js gzip	39.1 kB	39.1 kB	✓
webpack-HASH.js gzip	1.68 kB	1.68 kB	✓
262-HASH.js gzip	N/A	4.53 kB	-
2889.HASH.js gzip	N/A	169 B	-
5602-HASH.js gzip	N/A	5.48 kB	-
6948ada0-HASH.js gzip	N/A	62.6 kB	-
9544-HASH.js gzip	N/A	57.9 kB	-
Total	231 kB	231 kB	⚠️ +716 B

Polyfills

	Canary	PR	Change
polyfills-HASH.js gzip	39.4 kB	39.4 kB	✓
Total	39.4 kB	39.4 kB	✓

Pages

	Canary	PR	Change
_app-HASH.js gzip	194 B	194 B	✓
_error-HASH.js gzip	183 B	180 B	🟢 3 B (-2%)
css-HASH.js gzip	331 B	330 B	✓
dynamic-HASH.js gzip	1.81 kB	1.81 kB	✓
edge-ssr-HASH.js gzip	256 B	256 B	✓
head-HASH.js gzip	351 B	352 B	✓
hooks-HASH.js gzip	384 B	383 B	✓
image-HASH.js gzip	580 B	581 B	✓
index-HASH.js gzip	260 B	260 B	✓
link-HASH.js gzip	2.5 kB	2.5 kB	✓
routerDirect..HASH.js gzip	320 B	319 B	✓
script-HASH.js gzip	386 B	386 B	✓
withRouter-HASH.js gzip	315 B	315 B	✓
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
Total	7.97 kB	7.97 kB	✅ -2 B

Server

Edge SSR

	Canary	PR	Change
edge-ssr.js gzip	125 kB	125 kB	✓
page.js gzip	252 kB	252 kB	✓
Total	377 kB	376 kB	✅ -383 B

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	615 B	616 B	✓
middleware-r..fest.js gzip	156 B	155 B	✓
middleware.js gzip	43.8 kB	43.6 kB	✓
edge-runtime..pack.js gzip	842 B	842 B	✓
Total	45.4 kB	45.2 kB	✅ -148 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	715 B	718 B	✓
Total	715 B	718 B	⚠️ +3 B

Build Cache

	Canary	PR	Change
0.pack gzip	3.92 MB	3.93 MB	🔴 +9.33 kB (+0%)
index.pack gzip	104 kB	104 kB	✓
index.pack.old gzip	103 kB	104 kB	✓
Total	4.12 MB	4.13 MB	⚠️ +10.3 kB

🔄 Shared (bundler-independent)

Runtimes

	Canary	PR	Change
app-page-exp...dev.js gzip	317 kB	317 kB	✓
app-page-exp..prod.js gzip	168 kB	168 kB	✓
app-page-tur...dev.js gzip	316 kB	316 kB	✓
app-page-tur..prod.js gzip	168 kB	168 kB	✓
app-page-tur...dev.js gzip	313 kB	313 kB	✓
app-page-tur..prod.js gzip	166 kB	166 kB	✓
app-page.run...dev.js gzip	313 kB	313 kB	✓
app-page.run..prod.js gzip	167 kB	167 kB	✓
app-route-ex...dev.js gzip	70.6 kB	70.6 kB	✓
app-route-ex..prod.js gzip	49.1 kB	49.1 kB	✓
app-route-tu...dev.js gzip	70.6 kB	70.6 kB	✓
app-route-tu..prod.js gzip	49.1 kB	49.1 kB	✓
app-route-tu...dev.js gzip	70.2 kB	70.2 kB	✓
app-route-tu..prod.js gzip	48.9 kB	48.9 kB	✓
app-route.ru...dev.js gzip	70.2 kB	70.2 kB	✓
app-route.ru..prod.js gzip	48.9 kB	48.9 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	43.2 kB	43.2 kB	✓
pages-api-tu..prod.js gzip	32.9 kB	32.9 kB	✓
pages-api.ru...dev.js gzip	43.2 kB	43.2 kB	✓
pages-api.ru..prod.js gzip	32.8 kB	32.8 kB	✓
pages-turbo....dev.js gzip	52.5 kB	52.5 kB	✓
pages-turbo...prod.js gzip	38.4 kB	38.4 kB	✓
pages.runtim...dev.js gzip	52.5 kB	52.5 kB	✓
pages.runtim..prod.js gzip	38.4 kB	38.4 kB	✓
server.runti..prod.js gzip	63.6 kB	63.6 kB	✓
Total	2.8 MB	2.81 MB	⚠️ +689 B

📝 Changed Files (8 files)

Files with changes:

app-page-exp..ntime.dev.js
app-page-exp..time.prod.js
app-page-tur..ntime.dev.js
app-page-tur..time.prod.js
app-page-tur..ntime.dev.js
app-page-tur..time.prod.js
app-page.runtime.dev.js
app-page.runtime.prod.js

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nextjs-bot · 2026-02-19T00:48:16Z

Tests Passed

codspeed-hq · 2026-02-19T01:09:49Z

Merging this PR will not alter performance

✅ 17 untouched benchmarks
⏩ 3 skipped benchmarks¹

_{Comparing sebbie/02-18-_instant_include_declaration_location_of_instant_config_in_validation_errors (5d4106c) with canary (bedf366)}

3 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[instant] Include declaration location of instant config in validat…

74f5958

…ion errors

nextjs-bot added created-by: Next.js team PRs by the Next.js team. Turbopack Related to Turbopack with Next.js. type: next labels Feb 19, 2026

eps1lon added 3 commits February 18, 2026 16:31

Pass debug instant stack to instant validation cause

8ff2963

Sourcemap to right hand side

454735a

Gate behind dev server or debug prerender

6aec01e

eps1lon force-pushed the sebbie/02-18-_instant_include_declaration_location_of_instant_config_in_validation_errors branch from 9bd49a0 to 6aec01e Compare February 19, 2026 04:50

construct with cause instead of mutate

5d4106c

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[instant] Include declaration location of instant config in validation errors#90169

[instant] Include declaration location of instant config in validation errors#90169
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sebbie/02-18-_instant_include_declaration_location_of_instant_config_in_validation_errors

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