mpazaryna/cf-durable-objects
skills/cf-durable-objects/SKILL.md
Cloudflare Durable Objects: stateful workflows, WebSockets, coordination, rate limiting, alarm scheduling. Use when building stateful services on Cloudflare.
development
Updated Apr 25, 2026
$ install --global
skillsauthnpx skillsauth add mpazaryna/agentic-factory cf-durable-objectsInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Apr 25, 2026, 3:04 PM59.0s2 files scanned
SKILL.md
- name:
- cf-durable-objects
- description:
- Cloudflare Durable Objects: stateful workflows, WebSockets, coordination, rate limiting, alarm scheduling. Use when building stateful services on Cloudflare.
- user-invocable:
- false
Durable Objects
Key Concepts
- Durable Object classes: State persisted across requests
- State persistence:
this.state.storagefor key-value, SQL, or transactional storage - Alarm scheduling:
this.state.storage.setAlarm()for deferred execution - WebSocket handling: Built-in WebSocket pair support
- Coordination patterns: Single-instance guarantee for mutual exclusion
Anti-Patterns
- Creating new Durable Object instances unnecessarily
- Not using
blockConcurrencyWhile()for initialization - Missing error handling in alarm callbacks
Reference
For detailed patterns, see references/durable-objects.md.
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