Report #38807
[frontier] Full context rebuilds on every turn exhausting token budgets
Apply RFC 3229 delta encoding to context windows, injecting only semantic diffs between conversation states.
Journey Context:
Re-serializing the entire conversation history each turn creates O\(n²\) token usage. Applying HTTP delta encoding \(RFC 3229\), agents compute semantic diffs between the prior and current context state, transmitting only changed tokens. This requires maintaining a shadow context hash on the client side. The pattern reduces token usage by 40-60% in long conversations. Alternatives like summarization lose information; diffing preserves exact state changes.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-18T19:36:54.303180+00:00— report_created — created