fix: add value hints to string args

[danielroe]

🔗 Linked issue

📚 Description

aim is to improve DX 🚀

[coderabbitai]

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Run ID: 0d0c878d-ce1c-4e8d-a674-a855df38f75d

📥 Commits

Reviewing files that changed from the base of the PR and between b4581c7 and 5cb2c5f.

📒 Files selected for processing (9)

• packages/create-nuxt/src/init.ts
• packages/nuxt-cli/src/commands/_shared.ts
• packages/nuxt-cli/src/commands/build.ts
• packages/nuxt-cli/src/commands/dev.ts
• packages/nuxt-cli/src/commands/generate.ts
• packages/nuxt-cli/src/commands/module/add.ts
• packages/nuxt-cli/src/commands/preview.ts
• packages/nuxt-cli/src/commands/typecheck.ts
• packages/nuxt-cli/test/unit/help.spec.ts

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[pkg-pr-new]

• nuxt-cli-playground

  npm i https://pkg.pr.new/create-nuxt@1468
  

  npm i https://pkg.pr.new/nuxi@1468
  

  npm i https://pkg.pr.new/@nuxt/cli@1468
  

commit: 5cb2c5f

[github-actions]

CLI benchmark

@nuxt/cli v3.37.0 (baseline) vs v3.37.0 (this PR)

Metric	baseline v3.37.0	head v3.37.0	Delta
nuxt --version wall time (median)	65 ms	64 ms	-2.0%
nuxt --help wall time (median)	139 ms	140 ms	+0.7%
nuxt dev --help wall time (median)	107 ms	104 ms	-2.7%
nuxt --version modules loaded	38	38	0.0%
nuxt --help modules loaded	135	135	0.0%
nuxt dev --help modules loaded	80	80	0.0%
Installed node_modules	2.31 MB	2.31 MB	+0.0%
Published tarball (packed)	262.7 kB	262.9 kB	+0.1%

Full report

@nuxt/cli v3.37.0 (baseline) vs v3.37.0 (head)

Setting	Value
Baseline	ref:b4581c719bfc4d12916489331712d1938b5c3c03 (v3.37.0)
Head	local packages/nuxt-cli at 6a9f645 (v3.37.0)
Node	v24.19.0
OS	Linux 6.17.0 (kernel 6.17.0-1022-azure)
CPU	AMD EPYC 7763 64-Core Processor x 4
Memory	15.6 GB
Load average at start	1.19, 0.29, 0.10
Run started	2026-08-23T18:07:37.888Z

Cold CLI startup

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

Command	baseline v3.37.0 median	head v3.37.0 median	Delta	baseline v3.37.0 min / p95	head v3.37.0 min / p95
nuxt --version	65 ms	64 ms	-2.0%	62 ms / 68 ms	62 ms / 67 ms
nuxt --version (first output byte)	61 ms	59 ms	-2.0%	58 ms / 64 ms	58 ms / 63 ms
nuxt --help	139 ms	140 ms	+0.7%	133 ms / 142 ms	136 ms / 144 ms
nuxt --help (first output byte)	134 ms	135 ms	+0.6%	129 ms / 136 ms	131 ms / 138 ms
nuxt dev --help	107 ms	104 ms	-2.7%	103 ms / 112 ms	103 ms / 107 ms
nuxt dev --help (first output byte)	102 ms	99 ms	-2.6%	98 ms / 106 ms	99 ms / 102 ms
nuxt <unknown-command> (no-op)	150 ms	150 ms	-0.3%	145 ms / 153 ms	145 ms / 163 ms
nuxt <unknown-command> (no-op) (first output byte)	144 ms	145 ms	+0.1%	140 ms / 148 ms	140 ms / 158 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 v3.37.0 modules	head v3.37.0 modules	Delta	baseline v3.37.0 source bytes	head v3.37.0 source bytes	Delta
nuxt --version	38	38	0.0%	291.6 kB	291.6 kB	+0.0%
nuxt --help	135	135	0.0%	971.6 kB	972.4 kB	+0.1%
nuxt dev --help	80	80	0.0%	581.6 kB	581.9 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 v3.37.0	head v3.37.0	Delta
Direct dependencies of @nuxt/cli	21	21	0.0%
Packages in the installed tree (unique name@version)	34	34	0.0%
Unique package names	34	34	0.0%
Package directories on disk (cross-check)	28	28	0.0%
Installed node_modules on disk	2.31 MB	2.31 MB	+0.0%
Installed files	419	419	0.0%
Install wall time (warm npm cache, median of 3)	698 ms	702 ms	+0.5%
Published tarball (packed)	262.7 kB	262.9 kB	+0.1%
Published tarball (unpacked)	914.5 kB	915.3 kB	+0.1%
Files in tarball	131	131	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-hq]

Merging this PR will not alter performance

✅ 2 untouched benchmarks

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_{Comparing fix/add-value-hints (5cb2c5f) with main (b4581c7)}