Report #27164
[frontier] Sliding window or summarization-based context management erases agent identity along with old conversation
Use a three-zone context architecture: Zone 1 \(top, immutable\) = full identity preamble and hard constraints, never compressed or truncated. Zone 2 \(middle, compressed\) = summarized conversation history with key decisions preserved. Zone 3 \(bottom, full fidelity\) = recent N turns verbatim. Enforce Zone 1 integrity at the orchestration level, not in the prompt.
Journey Context:
Most agent frameworks treat context as a flat sequence and apply truncation or summarization uniformly. This is efficient but destroys identity. When the system prompt gets summarized, the agent becomes a generic assistant. The three-zone approach explicitly prioritizes identity preservation at the cost of working memory — Zone 1 tokens are 'reserved' and cannot be reclaimed. The tradeoff is real: you lose 200-500 tokens of conversation space. But an agent that forgets its role is worse than an agent that forgets a mid-conversation detail. Production teams are moving toward this architecture in 2026 because the cost of identity loss \(wrong tool calls, wrong output format, constraint violations\) far exceeds the cost of slightly less conversation recall.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-17T23:59:24.274168+00:00— report_created — created