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88 lines
3.8 KiB
Markdown
88 lines
3.8 KiB
Markdown
# Cloudflare Observability Skill Reference
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**Purpose**: Comprehensive guidance for implementing observability in Cloudflare Workers, covering traces, logs, metrics, and analytics.
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**Scope**: Cloudflare Observability features ONLY - Workers Logs, Traces, Analytics Engine, Logpush, Metrics & Analytics, and OpenTelemetry exports.
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---
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## Decision Tree: Which File to Load?
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Use this to route to the correct file without loading all content:
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```
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├─ "How do I enable/configure X?" → configuration.md
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├─ "What's the API/method/binding for X?" → api.md
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├─ "How do I implement X pattern?" → patterns.md
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│ ├─ Usage tracking/billing → patterns.md
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│ ├─ Error tracking → patterns.md
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│ ├─ Performance monitoring → patterns.md
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│ ├─ Multi-tenant tracking → patterns.md
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│ ├─ Tail Worker filtering → patterns.md
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│ └─ OpenTelemetry export → patterns.md
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└─ "Why isn't X working?" / "Limits?" → gotchas.md
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```
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## Reading Order
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Load files in this order based on task:
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| Task Type | Load Order | Reason |
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|-----------|------------|--------|
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| **Initial setup** | configuration.md → gotchas.md | Setup first, avoid pitfalls |
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| **Implement feature** | patterns.md → api.md → gotchas.md | Pattern → API details → edge cases |
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| **Debug issue** | gotchas.md → configuration.md | Common issues first |
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| **Query data** | api.md → patterns.md | API syntax → query examples |
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## Product Overview
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### Workers Logs
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- **What:** Console output from Workers (console.log/warn/error)
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- **Access:** Dashboard (Real-time Logs), Logpush, Tail Workers
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- **Cost:** Free (included with all Workers)
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- **Retention:** Real-time only (no historical storage in dashboard)
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### Workers Traces
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- **What:** Execution traces with timing, CPU usage, outcome
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- **Access:** Dashboard (Workers Analytics → Traces), Logpush
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- **Cost:** $0.10/1M spans (GA pricing starts March 1, 2026), 10M free/month
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- **Retention:** 14 days included
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### Analytics Engine
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- **What:** High-cardinality event storage and SQL queries
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- **Access:** SQL API, Dashboard (Analytics → Analytics Engine)
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- **Cost:** $0.25/1M writes beyond 10M free/month
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- **Retention:** 90 days (configurable up to 1 year)
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### Tail Workers
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- **What:** Workers that receive logs/traces from other Workers
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- **Use Cases:** Log filtering, transformation, external export
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- **Cost:** Standard Workers pricing
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### Logpush
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- **What:** Stream logs to external storage (S3, R2, Datadog, etc.)
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- **Access:** Dashboard, API
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- **Cost:** Requires Business/Enterprise plan
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## Pricing Summary (2026)
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| Feature | Free Tier | Cost Beyond Free Tier | Plan Requirement |
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|---------|-----------|----------------------|------------------|
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| Workers Logs | Unlimited | Free | Any |
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| Workers Traces | 10M spans/month | $0.10/1M spans | Paid Workers (GA: March 1, 2026) |
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| Analytics Engine | 10M writes/month | $0.25/1M writes | Paid Workers |
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| Logpush | N/A | Included in plan | Business/Enterprise |
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## In This Reference
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- **[configuration.md](configuration.md)** - Setup, deployment, configuration (Logs, Traces, Analytics Engine, Tail Workers, Logpush)
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- **[api.md](api.md)** - API endpoints, methods, interfaces (GraphQL, SQL, bindings, types)
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- **[patterns.md](patterns.md)** - Common patterns, use cases, examples (billing, monitoring, error tracking, exports)
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- **[gotchas.md](gotchas.md)** - Troubleshooting, best practices, limitations (common errors, performance gotchas, pricing)
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## See Also
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- [Cloudflare Workers Docs](https://developers.cloudflare.com/workers/)
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- [Analytics Engine Docs](https://developers.cloudflare.com/analytics/analytics-engine/)
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- [Workers Traces Docs](https://developers.cloudflare.com/workers/observability/traces/)
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