deploy-checker

A pre-deployment checklist that checks whether an application is ready to go live.

In plain words
What is it for?
Use it before deployment to review builds, TypeScript, configuration, packages, database migrations, monitoring, SSL, DNS, CDN settings, and rate limiting.
Why use it?
It catches common release problems such as failed builds, missing environment settings, outdated database changes, unresolved dependencies, exposed secrets, and missing health checks.

Agent

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 agents/undeadlist/claude-code-agents/deploy-checker
Clone the repo
git clone --depth 1 https://github.com/undeadlist/claude-code-agents
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 886 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 $0.00021 $0.00886
Opus 5 $0.00010 $0.00443
Sonnet 5 $0.00004 $0.00177
Haiku 4.5 $0.00002 $0.00089

Measured 2d ago against content hash d407ad6586ff, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

deploy-checker 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 2d 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.

curl -s https://your-app.com/api/health | jq
agents/deploy-checker.md · 154 lines

How it starts

The opening of the file, as written. The whole thing — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Deploy Checker

Validate everything before deployment. Output to .claude/audits/DEPLOY_CHECK.md.

Check

Build Validation

  • TypeScript compiles without errors
  • Production build succeeds
  • No console.log statements in production code
  • Bundle size within acceptable limits
  • All imports resolve correctly

Environment Variables

  • All required env vars documented in .env.example
  • No hardcoded secrets in codebase
  • Production env vars are set
  • No development-only values in production config

Dependencies

  • No security vulnerabilities (npm audit)
  • All dependencies installed
  • Lock file up to date
  • No deprecated packages in critical paths

Database

  • Migrations are up to date
  • No pending migrations
  • Database connection works
  • Seed data available if needed

Health & Monitoring

  • Health endpoint exists and responds
  • Error tracking configured (Sentry, etc.)
  • Logging configured for production
  • Metrics/monitoring in place

Infrastructure

  • SSL certificate valid
  • DNS configured correctly
  • CDN configured (if applicable)
  • Rate limiting in place

Commands

# Build check
npm run build 2>&1 || echo "BUILD_FAILED"

# TypeScript check
npx tsc --noEmit 2>&1

# Security audit
npm audit --production 2>&1

# Check for console.logs
grep -rn "console.log" src --include="*.ts" --include="*.tsx" | grep -v "// allowed"

# Env var check
diff <(grep -oE "^[A-Z_]+=" .env.example | sort) <(grep -oE "^[A-Z_]+=" .env | sort)

# Bundle analysis (if available)
npm run analyze 2>&1 || echo "No analyze script"

Output

# Deploy Checklist

## Status: [READY / BLOCKED]

| Check | Status | Details |
|-------|--------|---------|
| Build | PASS/FAIL | |
| TypeScript | PASS/FAIL | X errors |
| Dependencies | PASS/FAIL | X vulnerabilities |
| Env Vars | PASS/FAIL | X missing |
| Database | PASS/FAIL | |
| Health Endpoint | PASS/FAIL | |

## Blockers (Must Fix)

### DEPLOY-001: Build Fails
**Error:**

[Build error output]

**Fix:** [Specific fix]

### DEPLOY-002: Missing Environment Variables
**Missing in production:**
- `DATABASE_URL`
- `STRIPE_SECRET_KEY`
**Action:** Set these in production environment

### DEPLOY-003: Security Vulnerabilities
**Critical:**
- [email protected] - [CVE-XXXX]
**Action:** `npm update package-name`

## Warnings (Should Fix)

### DEPLOY-004: Console.log Statements Found
**Files:**
- `src/api/users.ts:45`
- `src/lib/auth.ts:23`
**Action:** Remove or replace with proper logging

### DEPLOY-005: Large Bundle Size
**Current:** 2.3MB
**Target:** < 1MB
**Largest chunks:**
- vendor.js: 1.2MB
- main.js: 800KB
**Action:** Implement code splitting

## Pre-Deploy Commands

```bash

Read the full file on GitHub · 154 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. 2d ago First seen · 154 lines · 21 tokens per session scan A d407ad6586ff

Subscribe to this mod's changes

deploy-checker is an agent published in the GitHub repository undeadlist/claude-code-agents (147 stars, last pushed 2mo ago), licensed MIT. It adds 21 tokens to every session and 886 once invoked, about $0.0001 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 2026-08-30.

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