amplify-nextjs-deployment-skill

amplify-nextjs-deployment-skill is a skill for OpenCode from darellchua2/opencode-config-template. It costs 46 tokens per session (3,531 once invoked), scanned A, original, Apache-2.0.

Deployment and troubleshooting guidance for running Next.js 16 or newer on AWS Amplify Hosting, a service that builds and hosts web applications. It covers server-rendered pages, environment variables, domains, CloudFront, Route 53, and deployment workflows.

In plain words
What is it for?
Use it to configure amplify.yml, deploy Next.js through Amplify or GitHub Actions, set up custom domains, connect media storage and content delivery, verify releases, and roll back failed deployments.
Why use it?
It helps diagnose production problems that may appear after a successful build, such as missing server environment variables. It also documents configuration, verification, and rollback patterns for this hosting setup.

Skill for OpenCode

Written for OpenCode: installed under .opencode/. Also seen: mentions OpenCode.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/darellchua2/opencode-config-template/amplify-nextjs-deployment-skill
Any agent
npx skills add darellchua2/opencode-config-template --skill amplify-nextjs-deployment-skill
Clone the repo
git clone --depth 1 https://github.com/darellchua2/opencode-config-template

Made for: OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for amplify-nextjs-deployment-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/darellchua2/opencode-config-template/amplify-nextjs-deployment-skill.svg)](https://agentmods.dev/skills/darellchua2/opencode-config-template/amplify-nextjs-deployment-skill)
Your own site
<a href="https://agentmods.dev/skills/darellchua2/opencode-config-template/amplify-nextjs-deployment-skill"><img src="https://agentmods.dev/badge/skills/darellchua2/opencode-config-template/amplify-nextjs-deployment-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,531 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00046 $0.03531
Opus 5 $0.00023 $0.01766
Sonnet 5 $0.00009 $0.00706
Haiku 4.5 $0.00005 $0.00353

Measured 6d ago against content hash 91505bf179b2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

amplify-nextjs-deployment-skill scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

For custom domains, transfer DNS to Route53 **first**, then associate the domain with Amplify. Wildcard subdomains may show `verified: False` in Amplify console even when the domain is actually working — verify with `cur
opencode_app/.opencode/skills/amplify-nextjs-deployment-skill/SKILL.md · 317 lines

How it starts

The opening of the file, as written. The whole thing — 317 lines — stays where its author put it; the contents beside it link to each section on GitHub.

What this skill does

  • Documents the 7 production-learned gotchas for deploying Next.js 16+ to AWS Amplify Hosting
  • Provides a canonical amplify.yml build spec template with SSR Lambda env-var injection
  • Covers GitHub Actions-based deploy triggers (more reliable than Amplify webhooks)
  • Includes post-deploy verification commands and rollback strategy
  • Provides a troubleshooting matrix mapping symptoms → root causes → fixes

When to use me

  • When the user mentions "Amplify", "amplify.yml", "SSR Lambda", "CloudFront OAC", or "deploy to Amplify"
  • When debugging process.env.* returning undefined in Next.js Server Components after a successful Amplify build
  • When setting up a new Next.js + Amplify Hosting deployment
  • When configuring custom domains via Route53 + Amplify
  • When deploying media/S3 + CloudFront integration with Next.js Image optimization
  • When reviewing or writing amplify.yml, deploy workflows, or infra-as-code for Amplify

Prerequisites

  • Next.js 16+ project (App Router + Turbopack build)
  • AWS account with Amplify Hosting enabled
  • (Optional) OpenTofu/Terraform infra module for S3 + CloudFront + Route53
  • (Optional) GitHub Actions workflow for aws amplify start-job deploy triggers

The 7 Critical Rules (Production-Learned)

These rules come from production debugging. Violating any of them typically produces a successful build pipeline with a broken runtime — the hardest failure mode to detect.

Rule 1: Amplify branch env vars are build-time ONLY

The Amplify SSR Lambda does NOT receive branch env vars at runtime. Next.js Turbopack inlines process.env.* at build time from .env.production. The amplify.yml build spec MUST inject env vars into .env.production so they're baked into the server bundle.

Symptom if violated: process.env.DATABASE_URL is undefined in Server Components, despite the build succeeding and the env var being set in Amplify console.

Fix: See amplify.yml template below — the preBuild phase writes env vars to .env.production.

Read the full file on GitHub · 317 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 317 lines · 46 tokens per session scan A 91505bf179b2

Subscribe to this mod's changes

amplify-nextjs-deployment-skill is a skill published in the GitHub repository darellchua2/opencode-config-template (6 stars, last pushed 4d ago), licensed Apache-2.0. It adds 46 tokens to every session and 3,531 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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