Arch Tools — Workflow Agent

Use this endpoint when you need an AI agent to autonomously plan and execute a multi-step workflow toward a high-level goal, especially when the exact sequence of steps is not known in advance. It is ideal when multiple tools need to be chained together and the orchestration logic should be handled by the agent rather than hard-coded. Prefer it over single-purpose endpoints when the task is complex, open-ended, or requires adaptive decision-making across steps.

• Goal is too vague or underspecified — agent may fail to make progress or return an unhelpful result
• Requested tools are not available or misspelled — agent cannot use them and may stall
• max_steps too low for the complexity of the goal — workflow terminates before completion
• Downstream tool failures during execution — partial results or error propagation
• Infinite loop or circular reasoning — agent exhausts steps without reaching goal
• Payment failure (x402) — call not processed if USDC balance is insufficient