fix(stores): remove dead code causing log spam on startup

[waleedlatif1]

Summary

• Fix excessive "[CustomToolsStore] Synced X custom tools" log spam (was logging per-block instead of once)
• Fix excessive "[CollaborativeWorkflow] Active workflow changed" log spam (50+ times on load)
• Remove dead code: lastPositionTimestamps ref was never read, queue was unused
• Remove unused return values from useCollaborativeWorkflow (consumers use source hooks directly)

Type of Change

• Bug fix

Testing

Tested manually - console logs reduced from 50+ to single instances

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
docs	Skipped		Jan 21, 2026 11:49pm

[greptile-apps]

Greptile Summary

This PR successfully migrates custom tools from Zustand store to React Query cache and removes excessive logging.

Key Changes:

• Replaced custom tools Zustand store with React Query cache for better server-state management
• Added getCustomTool and getCustomTools helper functions to access query cache outside React components
• Removed excessive logging in useCollaborativeWorkflow (workflow change log was firing 50+ times on load)
• Removed dead code: lastPositionTimestamps ref (never read), unused queue variable, unused return values from useCollaborativeWorkflow
• Updated all consumers to use new query cache-based approach
• Removed transformCustomTool and getCustomTools from providers/utils (no longer needed)

Impact:

• Console logs reduced from 50+ instances to single occurrences
• Better separation of concerns (server state in React Query, client state in Zustand)
• Cleaner codebase with removed dead code

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• The changes are well-structured refactoring work that improves code quality. The migration from Zustand to React Query is properly implemented with fallback handling. All references to deleted code have been updated. The removal of dead code and excessive logging directly addresses the stated goals. Tests have been updated to match the new implementation.
• No files require special attention

Important Files Changed

Filename	Overview
apps/sim/hooks/queries/custom-tools.ts	Moved types and logic from Zustand store to React Query cache, added helper functions to access cache outside React
apps/sim/hooks/use-collaborative-workflow.ts	Removed excessive logging and dead code (unused refs, queue variable, unused return values)
apps/sim/stores/custom-tools/store.ts	Deleted entire Zustand store - replaced by React Query cache
apps/sim/stores/index.ts	Removed custom tools store references, added comment explaining React Query migration
apps/sim/tools/utils.ts	Updated to use getCustomTool from query cache instead of Zustand store

Sequence Diagram

sequenceDiagram
    participant Component as React Component
    participant Hook as useCustomTools Hook
    participant RQ as React Query Cache
    participant NonReact as Non-React Code
    participant API as Custom Tools API
    
    Note over Component,API: Initial Load
    Component->>Hook: useCustomTools(workspaceId)
    Hook->>RQ: Query customToolsKeys.list(wsId)
    RQ->>API: GET /api/tools/custom
    API-->>RQ: Return tools data
    RQ-->>Hook: Return cached tools
    Hook-->>Component: Tools available
    
    Note over Component,API: Non-React Access (e.g., agent-handler)
    NonReact->>NonReact: getCustomTool(toolId, workspaceId)
    NonReact->>NonReact: getWorkspaceIdFromUrl() if not provided
    NonReact->>RQ: queryClient.getQueryData(customToolsKeys.list(wsId))
    RQ-->>NonReact: Return cached tools or []
    NonReact->>NonReact: Find tool by id or title
    
    Note over Component,API: Old Flow (Removed)
    rect rgb(200, 200, 200)
        Note over Hook,RQ: Previously: useCustomTools synced to Zustand store
        Note over NonReact: Previously: useCustomToolsStore.getState().getTool()
    end

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[waleedlatif1]

@greptile