---
title: "Cloudflare Platform"
status: "active"
folder: "000-configs/tools"
tags: [tool, cloudflare, workers, r2, d1, kv, ai, hosting]
created: "2026-07-29"
updated: "2026-07-30"
version: "1.2.0"
---

# Cloudflare Platform Instructions

Cloudflare is the **hosting and edge platform** for this workspace. Use Workers (serverless functions), Pages (static sites), R2 (object storage), D1 (SQLite at the edge), KV (key-value), Workers AI, and the Agents SDK.

Credentials are in `/home/user/.env.cloudflare` (server-only file, chmod 600, NOT in repo). Load with `source /home/user/.env.cloudflare`.

Admin placeholder: `[[000-shit_admin/cloudflare]]` (gitignored, just points to the env file).

## Quick Reference

- **CLI:** `npx wrangler` (not installed globally — use npx)
- **Account ID:** see admin doc
- **API Token:** see admin doc
- **Auth check:** `npx wrangler whoami`
- **Docs:** https://developers.cloudflare.com/

---

## 1. First-Time Setup

```bash
# Verify CLI is reachable
npx wrangler --version

# Login (uses browser-based OAuth)
npx wrangler login

# Verify auth
npx wrangler whoami
```

If `wrangler login` is not possible in the environment, set the API token directly:

```bash
# Load from server-only .env file
source /home/user/.env.cloudflare
# or set manually:
export CLOUDFLARE_API_TOKEN="<token>"
export CLOUDFLARE_ACCOUNT_ID="<account id>"
```

**Verify token works:**

```bash
curl -X GET "https://api.cloudflare.com/client/v4/accounts/${CLOUDFLARE_ACCOUNT_ID}/tokens/verify" \
  -H "Authorization: Bearer ${CLOUDFLARE_API_TOKEN}"
```

---

## 2. Workers (Serverless Functions)

### Create a new Worker

```bash
npx wrangler init my-worker
cd my-worker
```

### Deploy

```bash
npx wrangler deploy
```

### Local dev

```bash
npx wrangler dev
# runs at http://localhost:8787
```

### Tail logs

```bash
npx wrangler tail
# real-time logs from production
```

### Set secrets (env vars)

```bash
echo "secret-value" | npx wrangler secret put SECRET_NAME
```

---

## 3. R2 (Object Storage)

S3-compatible blob storage. Cheaper than AWS S3.

### Create bucket

```bash
npx wrangler r2 bucket create my-bucket
```

### List buckets

```bash
npx wrangler r2 bucket list
```

### Upload file

```bash
npx wrangler r2 object put my-bucket/path/to/file.txt --file ./local-file.txt
```

### Download file

```bash
npx wrangler r2 object get my-bucket/path/to/file.txt --file ./downloaded.txt
```

### Direct API (S3-compatible)

Endpoint format: `https://<ACCOUNT_ID>.r2.cloudflarestorage.com`

```bash
# Credentials are in admin doc
ACCESS_KEY_ID="<from admin doc>"
SECRET_ACCESS_KEY="<from admin doc>"
ENDPOINT="https://<ACCOUNT_ID>.r2.cloudflarestorage.com"

# Upload via AWS CLI (or any S3 client)
aws s3 cp ./file.txt s3://my-bucket/file.txt \
  --endpoint-url "$ENDPOINT" \
  --access-key-id "$ACCESS_KEY_ID" \
  --secret-access-key "$SECRET_ACCESS_KEY"
```

---

## 4. D1 (SQLite at the Edge)

Distributed SQLite database.

### Create database

```bash
npx wrangler d1 create my-db
# outputs: database_id = "xxxx-xxxx-xxxx"
```

### Run migrations

```bash
npx wrangler d1 migrations create my-db create_users_table
npx wrangler d1 migrations apply my-db --remote
```

### Execute SQL

```bash
npx wrangler d1 execute my-db --command "SELECT * FROM users"
```

### Local dev DB

```bash
npx wrangler d1 execute my-db --local --command "SELECT * FROM users"
```

---

## 5. KV (Key-Value Store)

Low-latency global KV.

### Create namespace

```bash
npx wrangler kv namespace create MY_KV
# outputs: id = "xxxx"
```

### Write / read

```bash
npx wrangler kv key put --namespace-id=<id> "my-key" "my-value"
npx wrangler kv key get --namespace-id=<id> "my-key"
```

---

## 6. Workers AI

```bash
npx wrangler ai run "@cf/meta/llama-3.1-8b-instruct" \
  --prompt "Hello world"
```

Models list: https://developers.cloudflare.com/workers-ai/models/

---

## 7. Pages (Static Sites)

### Deploy

```bash
npx wrangler pages deploy ./dist --project-name=my-site
```

### Local dev

```bash
npx wrangler pages dev ./dist
```

---

## 8. wrangler.jsonc Config

Prefer JSON config over TOML. Newer features are JSON-only.

```jsonc
{
  "name": "my-worker",
  "main": "src/index.ts",
  "compatibility_date": "2026-07-15",
  "compatibility_flags": ["nodejs_compat"],
  "vars": {
    "ENV": "production"
  },
  "kv_namespaces": [
    {
      "binding": "MY_KV",
      "id": "xxxx"
    }
  ],
  "r2_buckets": [
    {
      "binding": "MY_BUCKET",
      "bucket_name": "my-bucket"
    }
  ],
  "d1_databases": [
    {
      "binding": "DB",
      "database_name": "my-db",
      "database_id": "xxxx"
    }
  ],
  "ai": {
    "binding": "AI"
  }
}
```

After config changes, regenerate TypeScript bindings:

```bash
npx wrangler types
```

---

## 9. Local Dev Defaults

- Bindings use **local simulation** unless `remote: true`
- KV, R2, D1 all have local SQLite-backed emulators
- For real cloud data in dev:

```bash
npx wrangler dev --remote
```

---

## 10. Profiles

Use environments for staging/prod:

```jsonc
{
  "env": {
    "staging": {
      "name": "my-worker-staging",
      "vars": { "ENV": "staging" }
    },
    "production": {
      "name": "my-worker-prod",
      "vars": { "ENV": "production" }
    }
  }
}
```

Deploy to env:

```bash
npx wrangler deploy --env staging
npx wrangler deploy --env production
```

---

## 11. Common Patterns

### Cron-triggered Worker

```jsonc
{
  "triggers": {
    "crons": ["*/5 * * * *"]  // every 5 min
  }
}
```

### Queue consumer

```jsonc
{
  "queues": {
    "consumers": [{ "queue": "my-queue", "max_batch_size": 10 }]
  }
}
```

### Durable Object

```jsonc
{
  "durable_objects": {
    "bindings": [
      { "name": "COUNTER", "class_name": "Counter" }
    ]
  },
  "migrations": [
    { "tag": "v1", "new_sqlite_classes": ["Counter"] }
  ]
}
```

---

## 12. Skills (Loaded on Demand)

The following skills live in `/home/user/.agents/skills/`:

| Skill | When to load |
|---|---|
| `cloudflare` | General Cloudflare platform questions |
| `wrangler` | CLI commands, flags, config reference |
| `workers-best-practices` | Worker architecture, performance |
| `durable-objects` | DO patterns, migrations |
| `cloudflare-email-service` | Email routing/workers |
| `cloudflare-one` | Zero Trust, Tunnel, Access |
| `cloudflare-one-migrations` | Migrate from other providers |
| `sandbox-sdk` | Sandboxed code execution |
| `turnstile-spin` | CAPTCHA integration |
| `web-perf` | Performance tuning |

Load via `view_skill` tool or read `SKILL.md` directly.

---

## 13. Failure Modes to Avoid

- ❌ Don't hardcode credentials in source — use `wrangler secret`
- ❌ Don't commit `wrangler.jsonc` with secrets — only bindings/IDs
- ❌ Don't use TOML — prefer `wrangler.jsonc`
- ❌ Don't skip `compatibility_date` — always set a recent one
- ❌ Don't edit local DB and assume it's in prod — use `--remote` flag
- ❌ Don't run `wrangler deploy` without testing locally first
- ❌ Don't paste API tokens in chat — read from admin doc at runtime

---

## 14. Auth Priority

When loading the workspace prompt, prefer:
1. `wrangler login` (OAuth, persists)
2. `CLOUDFLARE_API_TOKEN` env var (read from admin doc)
3. Hardcoded token (worst, only for one-off scripts)

---

## Related Docs

- [[GH_CLI_INSTRUCTIONS]] — GitHub
- [[VITE_PREVIEW_INSTRUCTIONS]] — Vite preview
- [[PLAYWRIGHT_BROWSER_INSTRUCTIONS]] — Browser automation
- [[000-shit_admin/cloudflare]] — admin creds (read-only)