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The Wire · Showcase

CLI TIGHTENS THEME ACCESS ERRORS WHILE HYDROGEN CUTS TELEMETRY NOISE

By RepoJournal · Filed · About Shopify

Shopify CLI is surfacing clearer error messages when theme tokens lack the right permissions, while Hydrogen reduces performance monitoring overhead by 90 percent.

The CLI team shipped a fix [1] that replaces cryptic GraphQL `ACCESS_DENIED` errors with actionable guidance when users supply theme passwords or tokens that can't reach Online Store themes. This targets the high-volume failure case where developers paste a token path that lacks theme scope access, turning a raw API error into a human-readable fix. Meanwhile, the test infrastructure across CLI is getting a major upgrade: vitest just shipped 4.1.0 [2], and the team has already pushed through compatibility fixes [3][4][5] to lock in the new test runner without breaking existing unit tests. On the Hydrogen side, the team reduced PerfKit's resource timing sample rate from 100 to 10 [6], cutting unnecessary telemetry collection while keeping performance monitoring intact for storefronts that actually need it.

Action items

References

  1. [1] Improve missing theme scope error message ↗ Shopify/cli
  2. [2] Bump vitest from 3.2.4 to 4.1.0 ↗ Shopify/cli
  3. [3] Fix Vitest 4 unit test compatibility Shopify/cli
  4. [4] Narrow Vitest 4 compatibility fixes Shopify/cli
  5. [5] Fix Vitest 4 compatibility Shopify/cli
  6. [6] Lower perkit sample rate ↗ Shopify/hydrogen

FAQ

What changed in Shopify on June 10, 2026?
Shopify CLI is surfacing clearer error messages when theme tokens lack the right permissions, while Hydrogen reduces performance monitoring overhead by 90 percent.
What should Shopify teams do about it?
Review CLI error messages in your theme workflows - the new guidance is rolling out automatically • Run your test suite against vitest 4.1 in CLI if you maintain custom test hooks • Verify PerfKit telemetry levels on Hydrogen storefronts in production after the sample rate reduction
Which Shopify repositories shipped on June 10, 2026?
Shopify/cli, Shopify/hydrogen

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