add act cache refresh on self-heal

[seanmcguire12]

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what changed

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Latest commit: 530ae6d

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[greptile-apps]

Greptile Overview

Greptile Summary

Adds automatic cache refresh when self-heal updates action selectors during replay. When cached actions are replayed and the self-heal mechanism finds better selectors, the cache entry is now automatically updated with the healed selectors for future use.

Key Changes:

• Added haveActionsChanged() method to detect differences between original and replayed actions
• Added refreshCacheEntry() method to update cache with healed actions
• Modified replayCachedActions() to check for changes after successful replay and refresh cache if needed
• Added Action type import to support the new comparison logic

How it works:
After successfully replaying all cached actions, the code compares the original cached selectors with the potentially healed selectors returned from replay. If self-heal occurred and selectors changed, the cache is updated so future replays use the improved selectors rather than repeatedly triggering self-heal.

Confidence Score: 5/5

• Safe to merge - clean implementation with proper error handling and logging
• The implementation is well-structured with thorough action comparison logic, proper error handling in cache refresh, and clear logging. The changes are isolated to cache functionality and improve system resilience by learning from self-heal corrections.
• No files require special attention

Important Files Changed

File Analysis

Filename	Score	Overview
packages/core/lib/v3/cache/ActCache.ts	5/5	Adds self-heal cache refresh: detects when replayed actions have changed selectors and updates cache entry

Sequence Diagram

sequenceDiagram
    participant Client
    participant ActCache
    participant ActHandler
    participant Storage
    
    Client->>ActCache: tryReplay(context, page, timeout)
    ActCache->>Storage: readJson(cacheKey)
    Storage-->>ActCache: entry with cached actions
    
    loop For each cached action
        ActCache->>ActHandler: actFromObserveResult(action, page, ...)
        alt Action succeeds
            ActHandler-->>ActCache: {success: true, actions: [updatedAction]}
        else Action fails & selfHeal enabled
            ActHandler->>ActHandler: capture new snapshot
            ActHandler->>ActHandler: run LLM inference for new selector
            ActHandler->>ActHandler: retry with healed selector
            ActHandler-->>ActCache: {success: true, actions: [actionWithNewSelector]}
        end
    end
    
    ActCache->>ActCache: haveActionsChanged(original, updated)
    alt Actions changed (e.g., selector healed)
        ActCache->>ActCache: refreshCacheEntry(context, updatedEntry)
        ActCache->>Storage: writeJson(cacheKey, updatedEntry)
        Storage-->>ActCache: success
        ActCache-->>Client: ActResult with updated actions
    else Actions unchanged
        ActCache-->>Client: ActResult with original actions
    end

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