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A Python library that solves context window degradation in long-running LLM agents by moving memory management out of the model layer and into a deterministic engine.

18 starsPython

Mnesis – Lossless context management Python library

by damatar·Mar 22, 2026·1 point·0 comments

AI Analysis

●●SolidBig BrainWizardry

Engine-managed memory beats model self-summarization on OOLONG benchmarks.

Strengths
  • Deterministic engine handles memory instead of unreliable model summarization
  • 30-40% accuracy improvement at 8K to 1M token context lengths
  • Production-ready with CI, coverage, and OpenSSF Scorecard attestation
Weaknesses
  • Only 2 stars indicates limited real-world validation
  • Context management space has emerging competing solutions
Category
Target Audience

Developers building long-horizon LLM agent systems

Similar To

LangChain memory · LlamaIndex context managers · Mem0

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