Client Networking Lifecycle Hardening
Harden service clients across DNS resolution, connection pools, keep-alive reuse, timeouts, breakers, cancellation, retries, and observability. This bundle targets lifecycle bugs that make healthy-looking client code fail after upstream restarts, slowdowns, failovers, traffic bursts, or caller cancellation. Use it to make outbound dependency behavior bounded, observable, and recoverable without guessing production capacity.
Works with every agent that reads SKILL.md — Claude Code, Cursor, Codex CLI, Gemini CLI, GitHub Copilot, Windsurf, OpenClaw, and more.
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What's included
8 skillsRepair leaked or long-held connections, per-request client pools, fan-out saturation, retry amplification, and cleanup gaps without guessing pool sizes.
Repair ignored DNS TTLs, startup-only resolution, stale endpoint reuse, retry-to-same-address loops, discovery refresh stampedes, and DNS/pool confusion.
Repair HTTP keep-alive lifecycle bugs that leak sockets, exhaust pools, or cause intermittent resets after idle periods and deploys.
Align end-to-end request deadlines, retries, cancellation, database work, and side-effect ownership so server work stops when its budget is gone.
Repair duplicate breaker ownership, state drift, half-open probe storms, retry amplification, reset races, and failure-classification mismatches.
Repair lost cancellation signals, orphaned async work, retry-after-cancel bugs, stale completions, and unclear request-vs-durable task lifetimes.
Repair retry loops that overload APIs, queues, and external services during outages.
Automatically add production-ready logging, metrics, health checks, and error monitoring to existing apps.
See it in action
You say
Our Node/TypeScript API uses Prisma/PostgreSQL. The pool is configured for 10 connections per instance, but each request opens a transaction, then calls two HTTP services before the transaction finishes. A bulk endpoint runs 20 items with Promise.all, and the retry wrapper can run a second transaction while the first attempt is still unwinding after timeout. Under load we get pool acquisition timeouts. Repair connection-pool exhaustion locally using Testcontainers and an intentionally small test pool. Do not connect to production, increase live pool size, change database server settings, or invent our production connection limit.
Your agent does
Pool saturation found. Transactions hold DB connections across HTTP calls, bulk Promise.all exceeds the local pool, and retry can overlap cleanup. The repair narrows connection hold time, bounds fan-out, orders retry after release, adds tiny-pool deterministic tests, and exposes acquire/hold metrics. Production connection capacity and final pool size remain unverified.
How to install
Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.
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