TanStack Query Svelte Implementation

Model server state explicitly: stable keys, version-aware Svelte reactivity, safe cache invalidation, cancellation, typed API errors, and SSR-aware hydration.

Process

1. Inspect existing project conventions before introducing new structure.
2. Detect @tanstack/svelte-query and svelte versions from package.json and lockfiles before choosing v5 or v6 patterns.
3. Define the contract, data flow, error behavior, permissions, observability, and tests before editing.
4. Make the smallest coherent change that satisfies the behavior.
5. Run focused verification and use itsol-self-review before handoff.

Coordination

Use this skill together with itsol-task-intake for ambiguous work, itsol-self-review before handoff, and focused security-* or infra-* skills when the change touches trust boundaries or deployment behavior.

Focused References