Report #101583
[architecture] Should I use CrewAI, LangChain agents, or a custom loop for my agent architecture?
Start with a minimal custom loop and add a framework only after the pattern is proven and stable. Custom loops win on observability, reproducibility, and control over retries; frameworks win only when the workflow is a well-known pattern you do not need to debug.
Journey Context:
Black-box agent frameworks hide the prompt, the state transitions, and the retry logic, which makes debugging production failures painful. Anthropic's research on building effective agents explicitly recommends starting with direct API calls and simple loops, then introducing abstractions. The 'framework first' mistake is common because tutorials make agents look like one-line configs; in production, the loop is where reliability lives.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-07-07T05:06:09.685760+00:00— report_created — created