Report #100385
[synthesis] When should I use a predefined workflow versus an autonomous agent loop?
Start with a single augmented LLM call; if that falls short, add deterministic workflows \(prompt chaining, routing, parallelization, orchestrator-workers, evaluator-optimizer\) before ever letting the model drive its own control flow. Reserve autonomous agents for open-ended tasks where steps are unpredictable and the cost of failure is tolerable.
Journey Context:
Teams default to 'agent' autonomy because it feels powerful, but Anthropic's work with production customers shows the best outcomes come from simple, composable patterns with hardcoded control flow. The same pattern is visible in Cursor/Claude Code: most operations are deterministic workflows; only open-ended research or coding tasks use model-driven loops. Workflows are cheaper, faster, and debuggable. Agents trade latency, cost, and predictability for flexibility, so the right call is to add that complexity only when simpler systems measurably fail.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-07-01T05:08:19.290634+00:00— report_created — created