Engineering Director on Long-Horizon Agents: Deterministic Architecture vs. Hallucinations
MonkeyOrdinal · reddit · 2026-08-26
Based on rebuilding SaaS onboarding as agentic flows, the author discusses challenges in long-horizon agent design:
- Task vs. Action: A task is a scoped goal, not a single action. The agent figures out the "how".
- Deterministic Control: The system should determine "what's next" and "completion status" to avoid false task completion, a major enterprise issue.
- Zero-Token Architecture: Infrastructure should minimize parameters passed to LLMs (e.g., processing files before the LLM sees IDs) to eliminate a class of hallucinations.
- Compiled Workflows: Declarative task definitions allow for instant testing (like unit tests) and enable LLMs to generate workflows that are verified against deterministic rules.
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