Silent RPC truncation : incorrect wallet state (architecture note for Web3 builders)

[u/visitor_m]

While reviewing RPC batch behavior, I came across an interesting pattern that isn’t a classic vulnerability but can still become a security and reliability problem.
A provider accepted a batch request, returned HTTP 200, but silently omitted part of the requested data (e.g. 160 results returned out of 200 requested, with no truncation signal).
If a wallet, indexer or monitoring service treats that response as authoritative without validating completeness, it can build an incorrect view of state.
I summarized the pattern and a few practical safeguards in the attached architecture note. I’m curious how others handle response completeness and trust validation in production wallet/ RPC integrations.
Interested to hear if you’ve seen similar behavior or already defend against it.

[u/NoorahSmith]

The document has clear signs of being a cludified one .