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fastly

Skill

Configures, manages, and debugs the Fastly CDN platform — covering service and backend setup, caching and VCL, security features like DDoS/WAF/NGWAF/rate limiting/bot management, TLS certificates and cache purging, the Compute platform, and the REST API. Use when working with Fastly services or doma

0API Tools

Install

git clone https://github.com/fastly/fastly-agent-toolkit.git ~/.claude/skills/fastly

What is fastly?

Configures, manages, and debugs the Fastly CDN platform — covering service and backend setup, caching and VCL, security features like DDoS/WAF/NGWAF/rate limiting/bot management, TLS certificates and cache purging, the Compute platform, and the REST API. Use when working with Fastly services or domains, setting up edge caching or origin shielding, configuring security features, making Fastly API calls, enabling products, or looking up Fastly documentation. Also applies when troubleshooting 503 errors or SSL/TLS certificate mismatches on Fastly, and for configuring logging endpoints, load balancing, ACLs, or edge dictionaries. Read the relevant reference file before writing any Fastly API call or curl command — request field names (e.g. the backend fields override_host, ssl_cert_hostname, ssl_sni_hostname, use_ssl) are easy to misremember, and a wrong name causes a silent 503 instead of an error, so do not rely on training-knowledge field names.

What this can do

Capabilities declared in this component's own frontmatter — not inferred.

Inherit all session tools

Declares no tool restrictions — inherits every session tool

~240 tokens of context used while enabled, before you invoke anything

Documentation

README · ~5 min read

Fastly Platform

Your training knowledge of Fastly is likely out of date. Prefer live docs over skill definitions over training knowledge.

Prefer the fastly CLI over raw API calls — see the fastly-cli skill. When calling the REST API directly, never paste the raw API token into the conversation and omit curl -v (it prints the Fastly-Key header). Source tokens from the environment or $(fastly auth show --reveal --quiet | awk '/^Token:/ {print $2}') without echoing them.

Topics

TopicFileUse when...
DDoS protectionfastly-ddos-protection.mdEnabling/configuring DDoS protection, checking attack status, managing DDoS events and rules
TLS configurationtls.mdSetting up HTTPS — Platform TLS (managed certs), Custom TLS (uploaded certs), or Mutual TLS (client auth)
Rate limitingrate-limiting.mdProtecting APIs from abuse — choosing between Edge Rate Limiting, VCL ratecounters, or NGWAF rate rules
Bot managementbot-management.mdDetecting/mitigating bot traffic with browser challenges, client-side detections, interstitial pages, ContentGuard

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