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RFC: Transport-layer payload minimization hooks for production tool workflows #3740

Description

@beebeeVB

Technical Challenge

While Vellum provides exceptional tooling for monitoring tool-calling execution and routing analytics, manually writing custom structural wrappers for every backend corporate database to avoid tool result bloat creates immense integration debt for enterprise builders.

Proposed Resolution Block

We built an open-source context hygiene proxy designed to automate data optimization natively right at the transport boundary.

It drops inline between the data layer and the host process, flattens incoming JSON payloads, and runs a compiled local Open Policy Agent (OPA) loop to prune excess keys, truncate heavy metadata strings, and enforce character bounds in under 3ms. It guarantees 100% deterministic schema hygiene without secondary LLM execution costs, recording the transaction metrics inside a secure SHA256 compliance log.

I would highly value your engineering feedback on our latency metrics and to see how this proxy form-factor could map alongside Vellum's deployment layers.

(Technical architecture overview: https://linkedin.com/in/bhuwanbhandari99)

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