vercel-blob consistent-reads cache-control private-storage agent-state

Vercel Blob adds consistent reads for private storage

Pass `useCache: false` to bypass CDN caching on blob reads, guaranteeing read-after-write consistency within 60 seconds of overwrites.

Summary

Agent memory files, session transcripts, and real-time reports now have guaranteed freshness without manual cache-busting. Developers building stateful AI systems can rely on immediate consistency instead of eventual coherence.

Why it matters

Implementation verdict

Replaces manual cache-busting patterns. Requires `@vercel/blob@2.6.1+` and willingness to accept slower reads and Fast Origin Transfer costs for critical paths. Ready now—add flags surgically to hot paths only.

Sources

1.Pass `useCache: false` to `get()` or `presignUrl()` for a read that reflects the latest write
2.readers might see the cached version for up to 60 seconds
3.These reads bypass the CDN, take longer than cached reads, and incur Fast Origin Transfer
4.npm install @vercel/blob@2.6.1

Dev Signal

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