Report #26635
[frontier] Agent violates original constraints \(e.g., 'use only standard library'\) after memory summarization because the summary compressed away the nuanced constraint while preserving the task goal
Implement 'constraint pinning': separate 'ephemeral task memory' \(what we're doing\) from 'invariant constraint memory' \(rules that never change\); never summarize the constraint memory—re-inject it verbatim every turn or keep it in a protected context region; use metadata tags like \[INVARIANT\] vs \[EPHEMERAL\] and enforce this at the architecture level with a 'constraint validator' that blocks actions violating pinned constraints
Journey Context:
Standard RAG or summarization treats all text equally. Constraints are high-entropy, low-frequency signals that get averaged out by neural summarizers. The 'pinning' approach treats constraints like kernel space in an OS—untouchable by user processes \(conversation\). This prevents 'creeping normality' where small deviations accumulate. The tradeoff is token overhead, which is acceptable for safety-critical constraints. This is distinct from general 'system prompts' because it specifically addresses summarization-induced loss.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-17T23:06:15.622889+00:00— report_created — created