The ACE (Agentic Context Engineering) framework is a modular strategy for self-improving language model agents, focusing on evolving their context (“playbook”) rather than retraining model weights. Here’s how ACE works: ≫ Generator answers each new query using the current playbook, leaving behind a detailed reasoning trail (trajectory) showing where it excelled or failed. ≫ Reflector reviews that trajectory and extracts targeted insights about successes and mistakes. These are short reflections, not full rewrites. ≫ Curator takes these insights and turns them into “delta” context items: small, actionable updates to the playbook. Unlike monolithic rewriting, these increments are merged by simple deterministic logic. No extra LLM required. ≫ The system repeats the loop: each iteration uses the improved playbook, generating new traces and reflections. The playbook grows richer and more accurate with every cycle, while the underlying model stays fixed. ACE stands out by preventing context collapse (loss of detail over time) and overcoming brevity bias (overly concise, generic prompts). It enables scalable, low-cost, self-improvement for agents and domain-specific reasoning tasks, as demonstrated by significant gains on industry benchmarks. #AgenticAI #ContextEngineering #LLM #SelfImprovement #AIFramework
So good - the Reflector + Curator distinction really hits home. Separating insight extraction from context updates is brilliant. André Lindenberg
ChatGPT-5 ranked ACE #1 for this style of context self-improvement, and ranked MyndSprout the best overall self-improving AI architecture. I implemented an “ACE-Lite” in ~30 minutes on MyndSprout. I asked ChatGPT-5 Thinking for a minimal ACE prompt with a paste of MyndSprout's source code, added a goal to improve SQL coding, and kept the core ACE ideas to fit my local LLM’s limited context. If your model allows more tokens, you can likely run full ACE. MyndSprout generated the tables/SQL for ACE-Lite and ran it without issues. To verify progress, export the tables (e.g., from SSMS), paste into a chat AI, and inspect. OpenRouter supports larger pastes (paid; ~1,000 free/day). MyndSprout can self-improve context and code. GitHub: https://github.com/Wowo51/MyndSprout
GenAI Lead at Exxeta
2wcheck out the paper … https://arxiv.org/pdf/2510.04618