fix(dev): read a key that shares a chunk with a terminal reply

[danielroe]

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[coderabbitai]

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Run ID: 118a824b-afe9-4680-8ab5-d0341510f61d

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Reviewing files that changed from the base of the PR and between 9cb3b30 and 3a6ca9b.

📒 Files selected for processing (2)

• packages/nuxt-cli/src/dev/tui/terminal-replies.ts
• packages/nuxt-cli/test/unit/dev-keys.spec.ts

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[pkg-pr-new]

• nuxt-cli-playground

  npm i https://pkg.pr.new/create-nuxt@1551
  

  npm i https://pkg.pr.new/nuxi@1551
  

  npm i https://pkg.pr.new/@nuxt/cli@1551
  

commit: 3a6ca9b

[github-actions]

CLI benchmark

@nuxt/cli v4.0.0-alpha.1 (baseline) vs v4.0.0-alpha.1 (this PR)

Metric	baseline v4.0.0-alpha.1	head v4.0.0-alpha.1	Delta
nuxt --version wall time (median)	55 ms	53 ms	-2.6%
nuxt --help wall time (median)	113 ms	113 ms	-0.1%
nuxt dev --help wall time (median)	87 ms	87 ms	+0.9%
nuxt --version modules loaded	37	37	0.0%
nuxt --help modules loaded	139	139	0.0%
nuxt dev --help modules loaded	82	82	0.0%
Installed node_modules	2.38 MB	2.38 MB	+0.0%
Published tarball (packed)	231.7 kB	231.9 kB	+0.1%

Full report

@nuxt/cli v4.0.0-alpha.1 (baseline) vs v4.0.0-alpha.1 (head)

Setting	Value
Baseline	ref:9cb3b3025b94b64acee0fd878c88a199deefc616 (v4.0.0-alpha.1)
Head	local packages/nuxt-cli at 3f51550 (v4.0.0-alpha.1)
Node	v24.21.0
OS	Linux 6.17.0 (kernel 6.17.0-1022-azure)
CPU	AMD EPYC 9V74 80-Core Processor x 4
Memory	15.6 GB
Load average at start	0.79, 0.23, 0.08
Run started	2026-09-21T23:03:31.727Z

Cold CLI startup

Median of 15 interleaved runs per command, one warmup discarded.

Command	baseline v4.0.0-alpha.1 median	head v4.0.0-alpha.1 median	Delta	baseline v4.0.0-alpha.1 min / p95	head v4.0.0-alpha.1 min / p95
nuxt --version	55 ms	53 ms	-2.6%	51 ms / 57 ms	51 ms / 56 ms
nuxt --version (first output byte)	51 ms	49 ms	-2.3%	47 ms / 53 ms	48 ms / 52 ms
nuxt --help	113 ms	113 ms	-0.1%	110 ms / 115 ms	110 ms / 116 ms
nuxt --help (first output byte)	108 ms	109 ms	+0.4%	105 ms / 111 ms	105 ms / 111 ms
nuxt dev --help	87 ms	87 ms	+0.9%	83 ms / 90 ms	82 ms / 95 ms
nuxt dev --help (first output byte)	82 ms	83 ms	+1.3%	78 ms / 86 ms	78 ms / 90 ms
nuxt <unknown-command> (no-op)	120 ms	120 ms	+0.3%	117 ms / 127 ms	116 ms / 125 ms
nuxt <unknown-command> (no-op) (first output byte)	115 ms	115 ms	+0.4%	112 ms / 122 ms	112 ms / 120 ms

Module load cost

Counted with a module.registerHooks load hook, compile cache disabled. Counts every JS module actually evaluated on that code path (built-ins excluded, native addons excluded).

Command	baseline v4.0.0-alpha.1 modules	head v4.0.0-alpha.1 modules	Delta	baseline v4.0.0-alpha.1 source bytes	head v4.0.0-alpha.1 source bytes	Delta
nuxt --version	37	37	0.0%	302.8 kB	302.8 kB	0.0%
nuxt --help	139	139	0.0%	1.04 MB	1.04 MB	0.0%
nuxt dev --help	82	82	0.0%	646.3 kB	646.3 kB	0.0%

Install footprint and published tarball

Each version installed on its own into an empty project with nothing but @nuxt/cli as a dependency, so the tree is exactly the CLI and its transitive dependencies. npm cache is warm and the registry is only consulted for metadata, so install wall time is indicative, not a network benchmark.

Metric	baseline v4.0.0-alpha.1	head v4.0.0-alpha.1	Delta
Direct dependencies of @nuxt/cli	22	22	0.0%
Packages in the installed tree (unique name@version)	38	38	0.0%
Unique package names	38	38	0.0%
Package directories on disk (cross-check)	31	31	0.0%
Installed node_modules on disk	2.38 MB	2.38 MB	+0.0%
Installed files	407	407	0.0%
Install wall time (warm npm cache, median of 3)	1.01 s	1.01 s	-0.4%
Published tarball (packed)	231.7 kB	231.9 kB	+0.1%
Published tarball (unpacked)	756.7 kB	757.2 kB	+0.1%
Files in tarball	84	84	0.0%

Interleaved runs on a shared runner: trust the deltas, not the absolute timings. The dev, restart and build suites run locally via pnpm bench:cli.

[codspeed]

Merging this PR will not alter performance

✅ 2 untouched benchmarks

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_{Comparing fix/shared-chunk (3a6ca9b) with main (ef54a25)¹}

Footnotes

1. No successful run was found on main (9cb3b30) during the generation of this report, so ef54a25 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩