[cli] Update @clack/core and @clack/prompts to v1.2.0 by MattieTK · Pull Request #13644 · cloudflare/workers-sdk

MattieTK · 2026-04-23T00:26:25Z

Updates the Clack dependencies used by @cloudflare/cli from 0.x to 1.2.0. Clack 1.0 ships as ESM-only and includes new features like typeahead search in core components.

Changes

@clack/core ^0.3.2 → ^1.2.0 in packages/cli
@clack/prompts ^0.6.3 → ^1.2.0 in packages/create-cloudflare
TextPrompt#valueWithCursor renamed to userInputWithCursor (Clack breaking change) — updated in packages/cli/interactive.ts
Prompt class now requires a generic parameter — SelectRefreshablePrompt and Renderer type updated
Validator return type widened from string | void to string | Error | undefined to match Clack's new API — normalisation added in acceptDefault() and packages/create-cloudflare/src/helpers/args.ts

Testing

@cloudflare/cli: type-check passes, 41 unit tests pass
create-cloudflare: type-check passes, 192 unit tests pass
wrangler: type-check passes, 3703 tests pass
miniflare: type-check passes
Manual: c3 scaffold flow completes end-to-end, wrangler dev boots successfully with Miniflare

Tests
- Tests included/updated
- Automated tests not possible - manual testing has been completed as follows:
- Additional testing not necessary because:
Public documentation
- Cloudflare docs PR(s):
- Documentation not necessary because: internal dependency bump with no user-facing API changes

Bumps the Clack dependencies used by @cloudflare/cli (consumed internally by wrangler, miniflare, and create-cloudflare) from 0.x to 1.2.0. Clack 1.0 is ESM-only and renames TextPrompt#valueWithCursor to userInputWithCursor; internal call sites are updated to match. Validator return types have been widened to accept Error instances alongside strings, matching Clack's new API. Addresses #12933 (comment)

changeset-bot · 2026-04-23T00:26:33Z

🦋 Changeset detected

Latest commit: 0ef275f

The changes in this PR will be included in the next version bump.

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workers-devprod · 2026-04-23T00:26:49Z

Codeowners approval required for this PR:

✅ @cloudflare/wrangler

Show detailed file reviewers

github-actions · 2026-04-23T00:27:43Z

Changeset Review

Summary

✅ All changesets look good

Review Details

update-clack-to-v1.md

Version Type: ✅ Patch appropriate for dependency update
Changelog Quality: ✅ Good description explaining the bump and user impact
Markdown Headers: ✅ No h1/h2/h3 headers

vite-plugin-cf-registry-support.md

Version Type: ✅ Patch appropriate for bug fix
Changelog Quality: ✅ Clear description of previous error and fix
Markdown Headers: ✅ No h1/h2/h3 headers

ninety-doors-sit.md

Version Type: ✅ Patch appropriate for refactor
Changelog Quality: ✅ Brief but acceptable for simple change
Markdown Headers: ✅ No h1/h2/h3 headers

sour-bears-shake.md

Version Type: ✅ Patch appropriate for simplification
Changelog Quality: ✅ Clear description of behavioral change
Markdown Headers: ✅ No h1/h2/h3 headers

vitest-pool-workers-reset-helper.md

Version Type: ✅ Minor appropriate for new features
Changelog Quality: ✅ Excellent description with code example
Markdown Headers: ✅ No h1/h2/h3 headers

stream-local-video-serving.md

Version Type: ✅ Minor appropriate for new features
Changelog Quality: ✅ Comprehensive description of multiple features
Markdown Headers: ✅ No h1/h2/h3 headers

dependabot-update-13633.md

Version Type: ✅ Patch for dependency update (Dependabot - exempt from strict validation)
Changelog Quality: ✅ Clear table showing version changes
Markdown Headers: ✅ No h1/h2/h3 headers

fix-vite-config-denylist.md

Version Type: ✅ Patch appropriate for bug fix
Changelog Quality: ✅ Clear description of fix
Markdown Headers: ✅ No h1/h2/h3 headers

sour-paws-thank.md

Version Type: ✅ Patch appropriate for bug fix
Changelog Quality: ✅ Description explains the fix (uses conventional commit style which is acceptable)
Markdown Headers: ✅ No h1/h2/h3 headers

dependabot-update-13645.md

Version Type: ✅ Patch for dependency update (Dependabot - exempt from strict validation)
Changelog Quality: ✅ Clear table showing version changes
Markdown Headers: ✅ No h1/h2/h3 headers

detect-waf-block-response.md

Version Type: ✅ Patch appropriate for improved error handling
Changelog Quality: ✅ Excellent description of before/after behavior
Markdown Headers: ✅ No h1/h2/h3 headers

angry-bears-count.md

Version Type: ✅ Minor appropriate for new configuration options
Changelog Quality: ✅ Clear description of new fields
Markdown Headers: ✅ No h1/h2/h3 headers

fix-nonretryable-error-message.md

Version Type: ✅ Patch appropriate for bug fix
Changelog Quality: ✅ Clear description referencing the compatibility flag
Markdown Headers: ✅ No h1/h2/h3 headers

ai-search-inherit-display.md

Version Type: ✅ Patch appropriate for display fix
Changelog Quality: ✅ Clear description of the fix
Markdown Headers: ✅ No h1/h2/h3 headers

devin-ai-integration

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 3 additional findings.

pkg-pr-new · 2026-04-23T00:31:15Z

create-cloudflare

npm i https://pkg.pr.new/create-cloudflare@13644

@cloudflare/kv-asset-handler

npm i https://pkg.pr.new/@cloudflare/kv-asset-handler@13644

miniflare

npm i https://pkg.pr.new/miniflare@13644

@cloudflare/pages-shared

npm i https://pkg.pr.new/@cloudflare/pages-shared@13644

@cloudflare/unenv-preset

npm i https://pkg.pr.new/@cloudflare/unenv-preset@13644

@cloudflare/vite-plugin

npm i https://pkg.pr.new/@cloudflare/vite-plugin@13644

@cloudflare/vitest-pool-workers

npm i https://pkg.pr.new/@cloudflare/vitest-pool-workers@13644

@cloudflare/workers-editor-shared

npm i https://pkg.pr.new/@cloudflare/workers-editor-shared@13644

wrangler

npm i https://pkg.pr.new/wrangler@13644

commit: 0ef275f

ask-bonk · 2026-04-23T00:31:27Z

Now I have a complete picture. Let me assess whether there are any actionable issues:

Type widening is correct — @clack/core v1.2.0 defines validate as (value: TValue | undefined) => string | Error | undefined, and @clack/core internally handles Error instances (extracts .message). The PR correctly widens the BasePromptConfig.validate return type to match.
acceptDefault function handles Error correctly — The instanceof Error check at line 119 is correct.
args.ts handles Error correctly — The instanceof Error check at line 436 is correct.
valueWithCursor → userInputWithCursor rename — Correct per the upstream API change.
Prompt → Prompt<unknown> generic parameter — Correct; @clack/core v1.2.0 requires the generic.
SelectRefreshablePrompt extends Prompt<string> — Correct; this class stores string values.
Changeset includes miniflare — This is defensible since miniflare imports spinner from @cloudflare/cli/interactive, which bundles the updated @clack/core. The rebuilt artifact changes even if no miniflare source code changed.
dispatchRender return type changed from string | void to string | undefined — Correct per @clack/core v1.2.0's render signature: render(this: Omit<Self, 'prompt'>): string | undefined.

I don't see any logic bugs, security issues, backward compatibility violations, or incorrect API behavior. All the changes are mechanically correct and properly aligned with the upstream @clack/core v1.2.0 API.

LGTM

github run

workers-devprod

Codeowners reviews satisfied

Co-authored-by: Ben <4991309+NuroDev@users.noreply.github.com>

MattieTK requested a review from workers-devprod as a code owner April 23, 2026 00:26

workers-devprod added this to workers-sdk Apr 23, 2026

github-project-automation Bot moved this to Untriaged in workers-sdk Apr 23, 2026

workers-devprod requested review from a team and NuroDev and removed request for a team April 23, 2026 00:26

devin-ai-integration Bot reviewed Apr 23, 2026

View reviewed changes

NuroDev approved these changes Apr 23, 2026

View reviewed changes

Comment thread .changeset/update-clack-to-v1.md Outdated

workers-devprod approved these changes Apr 23, 2026

View reviewed changes

github-project-automation Bot moved this from Untriaged to Approved in workers-sdk Apr 23, 2026

MattieTK and others added 3 commits April 23, 2026 14:07

Apply suggestion from @NuroDev

07beec7

Co-authored-by: Ben <4991309+NuroDev@users.noreply.github.com>

Add \u200a (Hair Space) to clack multiselect matching

0cc4e8d

Trim whitespace

0ef275f

penalosa merged commit 377715d into main Apr 23, 2026
59 of 60 checks passed

penalosa deleted the clack-v1-update branch April 23, 2026 23:16

github-project-automation Bot moved this from Approved to Done in workers-sdk Apr 23, 2026

workers-devprod mentioned this pull request Apr 23, 2026

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[cli] Update @clack/core and @clack/prompts to v1.2.0#13644

[cli] Update @clack/core and @clack/prompts to v1.2.0#13644
penalosa merged 4 commits into
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clack-v1-update

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Changeset Review

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Review Details

update-clack-to-v1.md

vite-plugin-cf-registry-support.md

ninety-doors-sit.md

sour-bears-shake.md

vitest-pool-workers-reset-helper.md

stream-local-video-serving.md

dependabot-update-13633.md

fix-vite-config-denylist.md

sour-paws-thank.md

dependabot-update-13645.md

detect-waf-block-response.md

angry-bears-count.md

fix-nonretryable-error-message.md

ai-search-inherit-display.md

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