oh-my-opencode/src/config/schema/runtime-fallback.ts

import { z } from "zod"

export const RuntimeFallbackConfigSchema = z.object({
  /** Enable runtime fallback (default: true) */
  enabled: z.boolean().optional(),
  /** HTTP status codes that trigger fallback (default: [429, 503, 529]) */
  retry_on_errors: z.array(z.number()).optional(),
  /** Maximum fallback attempts per session (default: 3) */
  max_fallback_attempts: z.number().min(1).max(20).optional(),
  /** Cooldown in seconds before retrying a failed model (default: 60) */
  cooldown_seconds: z.number().min(0).optional(),
  /** Session-level timeout in seconds to advance fallback when provider hangs (default: 30, 0 to disable) */
  timeout_seconds: z.number().min(0).optional(),
  /** Show toast notification when switching to fallback model (default: true) */
  notify_on_fallback: z.boolean().optional(),
})

export type RuntimeFallbackConfig = z.infer<typeof RuntimeFallbackConfigSchema>