Circuit breakers on an owned backend: fail fast when the AI vendor fails

UpdatedSeptember 24, 2026

When a downstream AI or vendor HTTP dependency starts failing, the owned API should stop waiting on it. A circuit breaker opens after a measured run of failures and returns a cached, stale, or degraded response immediately. The process stays available. Threads and event-loop slots are not pinned to a vendor that is already down. Retries alone do the opposite: every caller keeps burning the timeout budget and the retry budget, which multiplies load on a dependency that is already sick.

This post is the breaker state machine. Outbound wait and retry live in timeouts and retries for AI backends. Parking work for later is a dead-letter queue concern.

This is an excerpt. Read the full post at otf-kit.dev/blog/circuit-breakers-owned-backend — full-stack kits your AI coding agent can actually ship to production. Browse the kits →

#architecture #backend #agents

Comments

Join the discussion

No comments yet. Be the first to comment.

More from this blog

Cursor Automations last mile: Security Review plus Rollouts, not hope-CI

Last-mile confidence is not a vibe and it is not “CI was green.” For Teams and Enterprise, Cursor Automations now cover the two gaps that still eat merge-and-ship weekends: exploitable-bug review on p

Sep 24, 20261 min read

Cursor Automations last mile: Security Review plus Rollouts, not hope-CI

Wire TanStack AI agents to OAuth-protected MCP via Vercel Connect

If you already run TanStack AI agents that call MCP tools, the boring failure mode is not that the model is dumb. It is that you pasted a long-lived MCP token into env, shipped it with the deployment,

Sep 24, 20261 min read

Wire TanStack AI agents to OAuth-protected MCP via Vercel Connect

Queue backpressure on an owned backend: refuse the burst before the pool melts

Agent runs, vendor webhook fan-out, and retry storms arrive as a sudden pile of HTTP calls on an API you operate. The database pool and the worker processes behind that API are a fixed budget. Once ev

Sep 24, 20261 min read

Queue backpressure on an owned backend: refuse the burst before the pool melts

Park failed jobs in a DLQ with reason, snapshot, and replay — not silent drop

On an owned backend, a failed background job belongs in a dead-letter queue with a failure reason, a payload snapshot, an attempt count, timestamps, the original queue identity, and a human or agent r

Sep 23, 20261 min read

Park failed jobs in a DLQ with reason, snapshot, and replay — not silent drop

OTF — kits your AI coding agent can ship to production

642 posts

Engineering notes on shipping production apps with AI coding tools — Claude Code, Cursor, Codex, Lovable, Bolt — and the stack underneath: React Native, Expo, Next.js, Supabase. Honest takes on what works, what breaks, and the full-stack kits that get you to production faster. By OTF.

Command Palette

Comments

More from this blog