{"version":1,"type":"story","url":"https://digestai.news/story/jaz-framework-lets-llms-run-complex-tasks-with-minimal-code","json":"https://digestai.news/story/jaz-framework-lets-llms-run-complex-tasks-with-minimal-code.json","markdown":"https://digestai.news/story/jaz-framework-lets-llms-run-complex-tasks-with-minimal-code.md","slug":"jaz-framework-lets-llms-run-complex-tasks-with-minimal-code","headline":"JAZ framework lets LLMs run complex tasks with minimal code","summary":"Researchers introduced JAZ, a lightweight agent framework that lets language models handle tasks usually requiring extra systems like memory or self-improvement. The framework uses a single `invoke` primitive, where the LLM generates executable code on the fly, including recursive calls. JAZ avoids custom tools or external systems, relying only on prompting.\n\nJAZ outperformed existing agents like Letta (MemGPT) by 8% on long-term recall tasks in the StuLife benchmark, using half the resources. It also beat ACE by 4% on self-improvement tasks in AppWorld, the authors claim. The paper argues that a minimalist design—just the agent loop plus constraints—can replace specialized systems for many workflows.","keyPoints":["JAZ uses an `invoke` primitive where LLMs generate executable code without manual tool design","Outperformed Letta (MemGPT) by 8% on recall tasks at half the cost in StuLife benchmark","Beat ACE by 4% on self-improvement tasks in AppWorld, per the authors"],"whyItMatters":"JAZ challenges the need for complex agent architectures by showing a simple loop with code generation can match or exceed specialized systems. It could reduce engineering overhead for long-term tasks and self-improvement.","category":{"slug":"agents","name":"Agents & Tools","url":"https://digestai.news/category/agents"},"entities":{"companies":[],"models":["JAZ","Letta (MemGPT)","ACE"],"people":[]},"firstPublishedAt":"2026-09-24T04:00:00Z","updatedAt":"2026-09-24T04:00:00Z","sourceCount":1,"hasPrimarySource":true,"sources":[{"outlet":"arXiv cs.AI","title":"Harness as a Language: A Minimalist Agent Framework With Maximal Expressivity","url":"https://arxiv.org/abs/2609.26891","publishedAt":"2026-09-24T04:00:00Z","type":"primary","primary":true,"lead":true}],"sourceNotes":null,"discussions":[],"thread":null,"cite":{"text":"Digest AI, \"JAZ framework lets LLMs run complex tasks with minimal code\", 24 September 2026, https://digestai.news/story/jaz-framework-lets-llms-run-complex-tasks-with-minimal-code","publisher":"Digest AI","title":"JAZ framework lets LLMs run complex tasks with minimal code","datePublished":"2026-09-24T04:00:00Z","url":"https://digestai.news/story/jaz-framework-lets-llms-run-complex-tasks-with-minimal-code"},"generatedBy":"Written by Digest AI's editorial model from the linked sources; the sources are the record.","license":"Headlines, digests and key points are written by Digest AI and may be quoted with a link to the story page. Linked articles belong to their publishers. Terms: https://digestai.news/terms#reuse"}