#278

Global Rank · of 600 Skills

wrangler AI Agent Skill

View Source: cloudflare/skills

Medium

Installation

npx skills add cloudflare/skills --skill wrangler

9.2K

Installs

Wrangler CLI

Your knowledge of Wrangler CLI flags, config fields, and subcommands may be outdated. Prefer retrieval over pre-training for any Wrangler task.

Retrieval Sources

Fetch the latest information before writing or reviewing Wrangler commands and config. Do not rely on baked-in knowledge for CLI flags, config fields, or binding shapes.

Source	How to retrieve	Use for
Wrangler docs	`https://developers.cloudflare.com/workers/wrangler/`	CLI commands, flags, config reference
Wrangler config schema	`node_modules/wrangler/config-schema.json`	Config fields, binding shapes, allowed values
Cloudflare docs	Search tool or `https://developers.cloudflare.com/workers/`	API reference, compatibility dates/flags

FIRST: Verify Wrangler Installation

wrangler --version  # Requires v4.x+

If not installed:

npm install -D wrangler@latest

Key Guidelines

Use wrangler.jsonc: Prefer JSON config over TOML. Newer features are JSON-only.
Set compatibility_date: Use a recent date (within 30 days). Check https://developers.cloudflare.com/workers/configuration/compatibility-dates/
Generate types after config changes: Run wrangler types to update TypeScript bindings.
Local dev defaults to local storage: Bindings use local simulation unless remote: true.
Profile Worker startup: Run wrangler check startup to measure startup time and detect scripts that exceed the startup time limit.
Use environments for staging/prod: Define env.staging and env.production in config.

Quick Start: New Worker

# Initialize new project
npx wrangler init my-worker

# Or with a framework
npx create-cloudflare@latest my-app

Quick Reference: Core Commands

Task	Command
Start local dev server	`wrangler dev`
Deploy to Cloudflare	`wrangler deploy`
Deploy dry run	`wrangler deploy --dry-run`
Generate TypeScript types	`wrangler types`
Profile Worker startup time	`wrangler check startup`
View live logs	`wrangler tail`
Delete Worker	`wrangler delete`
Auth status	`wrangler whoami`

Configuration (wrangler.jsonc)

Minimal Config

{
  "$schema": "./node_modules/wrangler/config-schema.json",
  "name": "my-worker",
  "main": "src/index.ts",
  "compatibility_date": "2026-01-01"
}

Full Config with Bindings

{
  "$schema": "./node_modules/wrangler/config-schema.json",
  "name": "my-worker",
  "main": "src/index.ts",
  "compatibility_date": "2026-01-01",
  "compatibility_flags": ["nodejs_compat"],

  // Environment variables
  "vars": {
    "ENVIRONMENT": "production"
  },

  // KV Namespace
  "kv_namespaces": [
    { "binding": "KV", "id": "<KV_NAMESPACE_ID>" }
  ],

  // R2 Bucket
  "r2_buckets": [
    { "binding": "BUCKET", "bucket_name": "my-bucket" }
  ],

  // D1 Database
  "d1_databases": [
    { "binding": "DB", "database_name": "my-db", "database_id": "<DB_ID>" }
  ],

  // Workers AI (always remote)
  "ai": { "binding": "AI" },

  // Vectorize
  "vectorize": [
    { "binding": "VECTOR_INDEX", "index_name": "my-index" }
  ],

  // Hyperdrive
  "hyperdrive": [
    { "binding": "HYPERDRIVE", "id": "<HYPERDRIVE_ID>" }
  ],

  // Durable Objects
  "durable_objects": {
    "bindings": [
      { "name": "COUNTER", "class_name": "Counter" }
    ]
  },

  // Cron triggers
  "triggers": {
    "crons": ["0 * * * *"]
  },

  // Environments
  "env": {
    "staging": {
      "name": "my-worker-staging",
      "vars": { "ENVIRONMENT": "staging" }
    }
  }
}

Generate Types from Config

# Generate worker-configuration.d.ts
wrangler types

# Custom output path
wrangler types ./src/env.d.ts

# Check types are up to date (CI)
wrangler types --check

Local Development

Start Dev Server

# Local mode (default) - uses local storage simulation
wrangler dev

# With specific environment
wrangler dev --env staging

# Force local-only (disable remote bindings)
wrangler dev --local

# Remote mode - runs on Cloudflare edge (legacy)
wrangler dev --remote

# Custom port
wrangler dev --port 8787

# Live reload for HTML changes
wrangler dev --live-reload

# Test scheduled/cron handlers
wrangler dev --test-scheduled
# Then visit: http://localhost:8787/__scheduled

Remote Bindings for Local Dev

Use remote: true in binding config to connect to real resources while running locally:

{
  "r2_buckets": [
    { "binding": "BUCKET", "bucket_name": "my-bucket", "remote": true }
  ],
  "ai": { "binding": "AI", "remote": true },
  "vectorize": [
    { "binding": "INDEX", "index_name": "my-index", "remote": true }
  ]
}

Recommended remote bindings: AI (required), Vectorize, Browser Rendering, mTLS, Images.

Local Secrets

Create .dev.vars for local development secrets:

API_KEY=local-dev-key
DATABASE_URL=postgres://localhost:5432/dev

Deployment

Deploy Worker

# Deploy to production
wrangler deploy

# Deploy specific environment
wrangler deploy --env staging

# Dry run (validate without deploying)
wrangler deploy --dry-run

# Keep dashboard-set variables
wrangler deploy --keep-vars

# Minify code
wrangler deploy --minify

Manage Secrets

Security: Never pass secret values as command arguments or pipe them via echo.
Use the interactive prompt (preferred), pipe from a file, or use secret bulk.
Never output, log, or hardcode secret values in commands.

# Set secret — interactive prompt (preferred, wrangler will ask for the value securely)
wrangler secret put API_KEY

# Set secret from a file (useful for PEM keys, CI environments)
wrangler secret put PRIVATE_KEY < path/to/private-key.pem

# List secrets
wrangler secret list

# Delete secret
wrangler secret delete API_KEY

# Bulk secrets from JSON file (do not commit this file to version control)
wrangler secret bulk secrets.json

Versions and Rollback

# List recent versions
wrangler versions list

# View specific version
wrangler versions view <VERSION_ID>

# Rollback to previous version
wrangler rollback

# Rollback to specific version
wrangler rollback <VERSION_ID>

KV (Key-Value Store)

Manage Namespaces

# Create namespace
wrangler kv namespace create MY_KV

# List namespaces
wrangler kv namespace list

# Delete namespace
wrangler kv namespace delete --namespace-id <ID>

Manage Keys

# Put value
wrangler kv key put --namespace-id <ID> "key" "value"

# Put with expiration (seconds)
wrangler kv key put --namespace-id <ID> "key" "value" --expiration-ttl 3600

# Get value
wrangler kv key get --namespace-id <ID> "key"

# List keys
wrangler kv key list --namespace-id <ID>

# Delete key
wrangler kv key delete --namespace-id <ID> "key"

# Bulk put from JSON
wrangler kv bulk put --namespace-id <ID> data.json

Config Binding

{
  "kv_namespaces": [
    { "binding": "CACHE", "id": "<NAMESPACE_ID>" }
  ]
}

R2 (Object Storage)

Manage Buckets

# Create bucket
wrangler r2 bucket create my-bucket

# Create with location hint
wrangler r2 bucket create my-bucket --location wnam

# List buckets
wrangler r2 bucket list

# Get bucket info
wrangler r2 bucket info my-bucket

# Delete bucket
wrangler r2 bucket delete my-bucket

Manage Objects

# Upload object
wrangler r2 object put my-bucket/path/file.txt --file ./local-file.txt

# Download object
wrangler r2 object get my-bucket/path/file.txt

# Delete object
wrangler r2 object delete my-bucket/path/file.txt

Config Binding

{
  "r2_buckets": [
    { "binding": "ASSETS", "bucket_name": "my-bucket" }
  ]
}

D1 (SQL Database)

Manage Databases

# Create database
wrangler d1 create my-database

# Create with location
wrangler d1 create my-database --location wnam

# List databases
wrangler d1 list

# Get database info
wrangler d1 info my-database

# Delete database
wrangler d1 delete my-database

Execute SQL

# Execute SQL command (remote)
wrangler d1 execute my-database --remote --command "SELECT * FROM users"

# Execute SQL file (remote)
wrangler d1 execute my-database --remote --file ./schema.sql

# Execute locally
wrangler d1 execute my-database --local --command "SELECT * FROM users"

Migrations

# Create migration
wrangler d1 migrations create my-database create_users_table

# List pending migrations
wrangler d1 migrations list my-database --local

# Apply migrations locally
wrangler d1 migrations apply my-database --local

# Apply migrations to remote
wrangler d1 migrations apply my-database --remote

Export/Backup

# Export schema and data
wrangler d1 export my-database --remote --output backup.sql

# Export schema only
wrangler d1 export my-database --remote --output schema.sql --no-data

Config Binding

{
  "d1_databases": [
    {
      "binding": "DB",
      "database_name": "my-database",
      "database_id": "<DATABASE_ID>",
      "migrations_dir": "./migrations"
    }
  ]
}

Vectorize (Vector Database)

Manage Indexes

# Create index with dimensions
wrangler vectorize create my-index --dimensions 768 --metric cosine

# Create with preset (auto-configures dimensions/metric)
wrangler vectorize create my-index --preset @cf/baai/bge-base-en-v1.5

# List indexes
wrangler vectorize list

# Get index info
wrangler vectorize get my-index

# Delete index
wrangler vectorize delete my-index

Manage Vectors

# Insert vectors from NDJSON file
wrangler vectorize insert my-index --file vectors.ndjson

# Query vectors
wrangler vectorize query my-index --vector "[0.1, 0.2, ...]" --top-k 10

Config Binding

{
  "vectorize": [
    { "binding": "SEARCH_INDEX", "index_name": "my-index" }
  ]
}

Hyperdrive (Database Accelerator)

Manage Configs

# Create config
wrangler hyperdrive create my-hyperdrive \
  --origin-host db.example.com \
  --origin-port 5432 \
  --database my-database \
  --origin-user db-user \
  --origin-password "$DB_PASSWORD"

# Or using a connection string from an environment variable
wrangler hyperdrive create my-hyperdrive \
  --connection-string "$HYPERDRIVE_CONNECTION_STRING"

# List configs
wrangler hyperdrive list

# Get config details
wrangler hyperdrive get <HYPERDRIVE_ID>

# Update config
wrangler hyperdrive update <HYPERDRIVE_ID> \
  --origin-password "$DB_PASSWORD"

# Delete config
wrangler hyperdrive delete <HYPERDRIVE_ID>

Config Binding

{
  "compatibility_flags": ["nodejs_compat"],
  "hyperdrive": [
    { "binding": "HYPERDRIVE", "id": "<HYPERDRIVE_ID>" }
  ]
}

Workers AI

List Models

# List available models
wrangler ai models

# List finetunes
wrangler ai finetune list

Config Binding

{
  "ai": { "binding": "AI" }
}

Note: Workers AI always runs remotely and incurs usage charges even in local dev.

Queues

Manage Queues

# Create queue
wrangler queues create my-queue

# List queues
wrangler queues list

# Delete queue
wrangler queues delete my-queue

# Add consumer to queue
wrangler queues consumer add my-queue my-worker

# Remove consumer
wrangler queues consumer remove my-queue my-worker

Config Binding

{
  "queues": {
    "producers": [
      { "binding": "MY_QUEUE", "queue": "my-queue" }
    ],
    "consumers": [
      {
        "queue": "my-queue",
        "max_batch_size": 10,
        "max_batch_timeout": 30
      }
    ]
  }
}

Containers

Build and Push Images

# Build container image
wrangler containers build -t my-app:latest .

# Build and push in one command
wrangler containers build -t my-app:latest . --push

# Push existing image to Cloudflare registry
wrangler containers push my-app:latest

Manage Containers

# List containers
wrangler containers list

# Get container info
wrangler containers info <CONTAINER_ID>

# Delete container
wrangler containers delete <CONTAINER_ID>

Manage Images

# List images in registry
wrangler containers images list

# Delete image
wrangler containers images delete my-app:latest

Manage External Registries

Security: Never hardcode registry credentials in commands. Use environment variables.

# List configured registries
wrangler containers registries list

# Configure external registry (e.g., ECR)
wrangler containers registries configure <DOMAIN> \
  --aws-access-key-id "$AWS_ACCESS_KEY_ID"

# Configure DockerHub
wrangler containers registries configure <DOMAIN> \
  --dockerhub-username "$DOCKERHUB_USERNAME"

# Delete registry configuration
wrangler containers registries delete <DOMAIN>

Workflows

Manage Workflows

# List workflows
wrangler workflows list

# Describe workflow
wrangler workflows describe my-workflow

# Trigger workflow instance
wrangler workflows trigger my-workflow

# Trigger with parameters
wrangler workflows trigger my-workflow --params '{"key": "value"}'

# Delete workflow
wrangler workflows delete my-workflow

Manage Workflow Instances

# List instances
wrangler workflows instances list my-workflow

# Describe instance
wrangler workflows instances describe my-workflow <INSTANCE_ID>

# Terminate instance
wrangler workflows instances terminate my-workflow <INSTANCE_ID>

Config Binding

{
  "workflows": [
    {
      "binding": "MY_WORKFLOW",
      "name": "my-workflow",
      "class_name": "MyWorkflow"
    }
  ]
}

Pipelines

Manage Pipelines

# Create pipeline
wrangler pipelines create my-pipeline --r2 my-bucket

# List pipelines
wrangler pipelines list

# Show pipeline details
wrangler pipelines show my-pipeline

# Update pipeline
wrangler pipelines update my-pipeline --batch-max-mb 100

# Delete pipeline
wrangler pipelines delete my-pipeline

Config Binding

{
  "pipelines": [
    { "binding": "MY_PIPELINE", "pipeline": "my-pipeline" }
  ]
}

Secrets Store

Manage Stores

# Create store
wrangler secrets-store store create my-store

# List stores
wrangler secrets-store store list

# Delete store
wrangler secrets-store store delete <STORE_ID>

Manage Secrets in Store

# Add secret to store
wrangler secrets-store secret put <STORE_ID> my-secret

# List secrets in store
wrangler secrets-store secret list <STORE_ID>

# Get secret
wrangler secrets-store secret get <STORE_ID> my-secret

# Delete secret from store
wrangler secrets-store secret delete <STORE_ID> my-secret

Config Binding

{
  "secrets_store_secrets": [
    {
      "binding": "MY_SECRET",
      "store_id": "<STORE_ID>",
      "secret_name": "my-secret"
    }
  ]
}

Pages (Frontend Deployment)

# Create Pages project
wrangler pages project create my-site

# Deploy directory to Pages
wrangler pages deploy ./dist

# Deploy with specific branch
wrangler pages deploy ./dist --branch main

# List deployments
wrangler pages deployment list --project-name my-site

Observability

Tail Logs

# Stream live logs
wrangler tail

# Tail specific Worker
wrangler tail my-worker

# Filter by status
wrangler tail --status error

# Filter by search term
wrangler tail --search "error"

# JSON output
wrangler tail --format json

Config Logging

{
  "observability": {
    "enabled": true,
    "head_sampling_rate": 1
  }
}

Testing

Local Testing with Vitest

npm install -D @cloudflare/vitest-pool-workers vitest

vitest.config.ts:

import { defineWorkersConfig } from "@cloudflare/vitest-pool-workers/config";

export default defineWorkersConfig({
  test: {
    poolOptions: {
      workers: {
        wrangler: { configPath: "./wrangler.jsonc" },
      },
    },
  },
});

Test Scheduled Events

# Enable in dev
wrangler dev --test-scheduled

# Trigger via HTTP
curl http://localhost:8787/__scheduled

Troubleshooting

Common Issues

Issue	Solution
`command not found: wrangler`	Install: `npm install -D wrangler`
Auth errors	Run `wrangler login`
Startup time limit exceeded	Run `wrangler check startup` to profile startup and generate CPU profiles
Type errors after config change	Run `wrangler types`
Local storage not persisting	Check `.wrangler/state` directory
Binding undefined in Worker	Verify binding name matches config exactly

Debug Commands

# Check auth status
wrangler whoami

# Profile Worker startup time
wrangler check startup

# View config schema
wrangler docs configuration

Best Practices

Version control wrangler.jsonc: Treat as source of truth for Worker config.
Use automatic provisioning: Omit resource IDs for auto-creation on deploy.
Run wrangler types in CI: Add to build step to catch binding mismatches.
Use environments: Separate staging/production with env.staging, env.production.
Set compatibility_date: Update quarterly to get new runtime features.
Use .dev.vars for local secrets: Never commit secrets to config.
Test locally first: wrangler dev with local bindings before deploying.
Use --dry-run before major deploys: Validate changes without deployment.
Never embed secrets in commands: Use interactive prompts (wrangler secret put), file-based input (wrangler secret bulk), or secure CI environment variables. Never echo, log, or pass secret values as CLI arguments.

Installs

Installs 9.2K

Global Rank #278 of 600

Security Audit

ath Safe

socket Safe

Alerts: 0 Score: 90

snyk Medium

zeroleaks Low

Score: 82

View Source

cloudflare/skills

Power your AI Agents with
the best open-source models.

Drop-in OpenAI-compatible API. No data leaves Europe.

Explore Inference API

GLM

GLM 5

$1.00 / $3.20

per M tokens

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$0.60 / $2.80

per M tokens

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$0.30 / $1.20

per M tokens

Qwen

Qwen3.5 122B

$0.40 / $3.00

per M tokens

How to use this skill

Install wrangler by running npx skills add cloudflare/skills --skill wrangler in your project directory. Run the install command above in your project directory. The skill file will be downloaded from GitHub and placed in your project.

No configuration needed. Your AI agent (Claude Code, Cursor, Windsurf, etc.) automatically detects installed skills and uses them as context when generating code.

The skill enhances your agent's understanding of wrangler, helping it follow established patterns, avoid common mistakes, and produce production-ready output.

What you get

Skills are plain-text instruction files — not executable code. They encode expert knowledge about frameworks, languages, or tools that your AI agent reads to improve its output. This means zero runtime overhead, no dependency conflicts, and full transparency: you can read and review every instruction before installing.

Compatibility

This skill works with any AI coding agent that supports the skills.sh format, including Claude Code (Anthropic), Cursor, Windsurf, Cline, Aider, and other tools that read project-level context files. Skills are framework-agnostic at the transport level — the content inside determines which language or framework it applies to.

Data sourced from the skills.sh registry and GitHub. Install counts and security audits are updated regularly.

Made in Europe

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wrangler AI Agent Skill

Wrangler CLI

Retrieval Sources

FIRST: Verify Wrangler Installation

Key Guidelines

Quick Start: New Worker

Quick Reference: Core Commands

Configuration (wrangler.jsonc)

Minimal Config

Full Config with Bindings

Generate Types from Config

Local Development

Start Dev Server

Remote Bindings for Local Dev

Local Secrets

Deployment

Deploy Worker

Manage Secrets

Versions and Rollback

KV (Key-Value Store)

Manage Namespaces

Manage Keys

Config Binding

R2 (Object Storage)

Manage Buckets

Manage Objects

Config Binding

D1 (SQL Database)

Manage Databases

Execute SQL

Migrations

Export/Backup

Config Binding

Vectorize (Vector Database)

Manage Indexes

Manage Vectors

Config Binding

Hyperdrive (Database Accelerator)

Manage Configs

Config Binding

Workers AI

List Models

Config Binding

Queues

Manage Queues

Config Binding

Containers

Build and Push Images

Manage Containers

Manage Images

Manage External Registries

Workflows

Manage Workflows

Manage Workflow Instances

Config Binding

Pipelines

Manage Pipelines

Config Binding

Secrets Store

Manage Stores

Manage Secrets in Store

Config Binding

Pages (Frontend Deployment)

Observability

Tail Logs

Config Logging

Testing

Local Testing with Vitest

Test Scheduled Events

Troubleshooting

Common Issues

Debug Commands

Best Practices

Installs

Security Audit

View Source

Power your AI Agents with the best open-source models.

How to use this skill

What you get

Compatibility

Power your AI Agents with
the best open-source models.