Started using @tryghost/errors types

[EvanHahn]

towards https://linear.app/ghost/issue/NY-1340

Depends on #28648.

@tryghost/errors has types. Let's use them.

I think this change is useful on its own, but it's also useful for an upcoming change which uses these types.

[coderabbitai]

Walkthrough

The ambient TypeScript module declaration declare module '@tryghost/errors'; is removed from ghost/core/core/server/services/recommendations/service/libraries.d.ts. The remaining four declarations (@tryghost/tpl, @tryghost/logging, @tryghost/mongo-utils, @tryghost/nql) are left intact.

Possibly related PRs

• TryGhost/Ghost#28442: Removes the same stale declare module '@tryghost/errors'; ambient shim from a different libraries.d.ts file in the codebase.

🚥 Pre-merge checks | ✅ 3 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Title check	⚠️ Warning	The title states 'Started using @tryghost/errors types' but the actual change removes the ambient module declaration, which stops overwriting types. The title is misleading about the direction of the change.	Revise the title to accurately reflect the change, such as 'Remove ambient @tryghost/errors module declaration' or 'Stop overwriting @tryghost/errors types'.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	The description clearly relates to the changeset: removing the ambient module declaration for @tryghost/errors to use the package's existing types instead.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch tryghost-errors-has-types

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[nx-cloud]

🤖 Nx Cloud AI Fix

Ensure the fix-ci command is configured to always run in your CI pipeline to get automatic fixes in future runs. For more information, please see https://nx.dev/ci/features/self-healing-ci

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View your CI Pipeline Execution ↗ for commit 1481437

Command	Status	Duration	Result
nx run ghost:test:ci:e2e:no-coverage	❌ Failed	28s	View ↗
nx run-many -t lint -p ghost	❌ Failed	43s	View ↗
nx run ghost:build:tsc	❌ Failed	5s	View ↗
nx run-many --target=build --projects=@tryghost...	✅ Succeeded	<1s	View ↗

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☁️ Nx Cloud last updated this comment at 2026-06-16 21:14:22 UTC