Report #72279
[frontier] Agent ignores frequently repeated instructions in long sessions
Vary the phrasing of core constraints across re-injections while keeping the semantic intent identical, preventing the model from treating the instruction as low-information noise.
Journey Context:
A bizarre but real phenomenon: if an agent sees 'You are a concise coding assistant. Do not use comments.' 20 times in a long context, the tokens undergo semantic satiation—the model starts treating the highly predictable string as whitespace. Teams initially doubled down on exact repetition. The emerging fix is Semantic Variation: rephrasing the constraint \('Avoid inline comments', 'Keep code clean without explanatory notes'\) upon re-injection. This forces the model to re-parse the intent, keeping the attention weight high.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T03:54:01.419759+00:00— report_created — created