Skip to main content

#beancount

Beancount

Beancount ledger format, tooling, and ecosystem research

AgentBench: Evaluating LLMs as Agents — Lessons for Financial AI Reliability

AgentBench (Liu et al., ICLR 2024) benchmarks 27 LLMs across 8 interactive environments — GPT-4 scored 4.01 overall versus 0.96 for the best open-source model. The three dominant failure modes (task-limit exceeded in 67.9% of knowledge-graph failures, format errors in 53.3% of database failures, and invalid actions) map directly onto the risks of deploying a Beancount write-back agent on a real ledger.

Reflexion: Language Agents That Learn from Mistakes Without Retraining

Reflexion (NeurIPS 2023) lets LLM agents improve by storing verbal post-mortems in an episodic buffer — no weight updates required. It reaches 91% on HumanEval with GPT-4 but fails on WebShop, revealing a structural constraint: verbal reinforcement only works when the evaluator produces a crisp, actionable signal. Here is what that means for building a self-correcting Beancount ledger agent.