Replit Skill Pack

30 production-grade Claude Code skills for building, deploying, and operating applications on Replit.

Real .replit and replit.nix configuration. Real Replit Database, Object Storage, and Auth APIs. Real deployment patterns for Autoscale, Reserved VM, and Static hosting. Every code example runs on Replit as written.

Installation

/plugin install replit-pack@claude-code-plugins-plus

What You Get

Platform configuration — .replit TOML format (run/build/deploy/env/modules), replit.nix package management, Nix channel selection, and port binding that actually works with Replit's proxy.

Three storage systems — PostgreSQL via DATABASE_URL with auto dev/prod separation, Key-Value Database (@replit/database / from replit import db) with its 50 MiB / 5K key limits, and Object Storage (@replit/object-storage) for file uploads and backups.

Replit Auth — Zero-setup authentication via X-Replit-User-Id, X-Replit-User-Name, and other headers injected by Replit's proxy. Express and Flask middleware patterns included.

Three deployment types — Static (free, CDN-backed), Autoscale (scales to zero, pay per request), and Reserved VM (always-on, from $0.20/day). Custom domains with auto-SSL.

Platform-aware patterns — Ephemeral filesystem handling, SIGTERM graceful shutdown, cold start optimization, container lifecycle management, and REPL_IDENTITY token verification.

Skills Included

Standard Skills (S01-S12)

| Skill | What It Does | |-------|-------------| | replit-install-auth | .replit + replit.nix setup, Secrets (AES-256), Replit Auth headers | | replit-hello-world | Working starter with Express, KV Database, Object Storage, Auth | | replit-local-dev-loop | Hot reload, Webview, port config, dev/prod databases, Replit Agent | | replit-sdk-patterns | Singleton clients, typed wrappers, retry/backoff for all Replit services | | replit-core-workflow-a | Full-stack app: Express + PostgreSQL + Auth + Object Storage | | replit-core-workflow-b | Teams admin: member management, seat audit, deployment promotion | | replit-common-errors | Top 10 errors: container sleep, port binding, Nix, DB limits, auth | | replit-debug-bundle | Diagnostic script collecting env, packages, DB status, network health | | replit-rate-limits | Platform limits (KV, storage, egress) + app-level rate limiting | | replit-security-basics | Secrets, REPL_IDENTITY tokens, Auth trust model, public Repl safety | | replit-prod-checklist | Deploy checklist: config, secrets, health checks, rollback, custom domain | | replit-upgrade-migration | Nix channel upgrades, KV-to-PostgreSQL migration, deployment type changes |

Pro Skills (P13-P18)

| Skill | What It Does | |-------|-------------| | replit-ci-integration | GitHub Actions, deploy-on-push, post-deploy health verification | | replit-deploy-integration | Autoscale vs Reserved VM vs Static, custom domains, rollbacks | | replit-webhooks-events | Webhook receivers, Replit Extensions API, Agents & Automations | | replit-performance-tuning | Cold start reduction, Nix caching, build optimization, memory management | | replit-cost-tuning | Deployment sizing, seat audit, egress control, Autoscale vs VM economics | | replit-reference-architecture | Production project structure, data layer strategy, platform constraints |

Flagship Skills (F19-F24)

| Skill | What It Does | |-------|-------------| | replit-multi-env-setup | Dev/staging/prod with dual databases, branch strategy, secret isolation | | replit-observability | Health endpoints, structured logging, uptime monitoring, cold start detection | | replit-incident-runbook | Triage, decision tree, remediation by error type, rollback, postmortem | | replit-data-handling | PostgreSQL + KV + Object Storage patterns, sanitization, secure responses | | replit-enterprise-rbac | Teams roles, custom groups, SSO/SAML, deployment permissions, audit logs | | replit-migration-deep-dive | Migrate from Heroku/Railway/Docker, database import, post-migration checklist |

Flagship+ Skills (X25-X30)

| Skill | What It Does | |-------|-------------| | replit-advanced-troubleshooting | Layer-by-layer diagnosis, Nix build debugging, crash loop analysis, memory leaks | | replit-load-scale | Load testing with k6/autocannon, VM sizing, connection pool tuning, capacity planning | | replit-reliability-patterns | Graceful startup/shutdown, persistent state, keep-alive, DB resilience | | replit-policy-guardrails | Secret scanning, resource limits, endpoint protection, security audit checklist | | replit-architecture-variants | Single-file to multi-service blueprints with growth path | | replit-known-pitfalls | 10 real anti-patterns: ephemeral FS, public secrets, localhost binding, Nix deps |

Key Replit Concepts

| Concept | Details | |---------|---------| | .replit | TOML config: run/build commands, env vars, deployment target, Nix channel | | replit.nix | Nix expression defining system packages (runtimes, libraries, CLI tools) | | Secrets | AES-256 encrypted env vars, auto-sync between Workspace and Deployments | | Auth headers | X-Replit-User-Id, X-Replit-User-Name, etc. injected by Replit proxy | | KV Database | @replit/database — 50 MiB, 5K keys, dict-like API | | PostgreSQL | DATABASE_URL env var, auto dev/prod separation | | Object Storage | @replit/object-storage — file uploads, backups, large data | | Deployments | Static (free), Autoscale (pay per request), Reserved VM (fixed cost) |

License

MIT