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fastly-agent-toolkit

Plugin

Fastly development tools and platform skills

28Developer Tools

Install

claude plugin install fastly-agent-toolkit@claude-plugins-official

What is fastly-agent-toolkit?

Fastly development tools and platform skills

What's inside

8 bundled components — installing the plugin installs all of them.

Skills (8)

falco

Lints, tests, simulates, and formats Fastly VCL code using the falco tool. Also serves as the authoritative VCL reference via the falco Go source, which implements Fastly's full VCL dialect. Use when validating VCL syntax, running VCL linting, testing VCL locally, simulating VCL request handling, fo

fastlike

Runs Fastly Compute WASM binaries locally and serves as the authoritative reference for Compute platform internals. The fastlike source code is highly readable and covers the host ABI, caching and purging APIs, KV/config/secret store interfaces, rate limiting with counters and penalty boxes, ACL loo

fastly-cli

Executes Fastly CLI commands for managing CDN services, Compute deploys, and edge infrastructure. Use when running `fastly` CLI commands, creating or managing Fastly services from the terminal, deploying Fastly Compute applications, managing backends/domains/VCL snippets via command line, purging ca

fastly-fiddle

Use when testing VCL against real Fastly edge infrastructure, writing assertion-based Fiddle tests, producing shareable fiddle URLs for bug reproductions, running VCL integration tests in CI, linting VCL remotely via the Fiddle API, or working with clientFetch/events/originFetches test expressions.

fastly-ngwaf

Performs an internal audit of Fastly Next-Gen WAF (NGWAF) workspaces to audit that critical templated protection rules are configured and enabled. Use when auditing NGWAF workspace security posture, checking for missing or disabled login protection rules (LOGINDISCOVERY, LOGINATTEMPT, LOGINSUCCESS,

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 doma

viceroy

Runs Fastly Compute WASM applications locally with Viceroy, specifically for Rust and Component Model projects. Use when starting a local Fastly Compute dev server with Viceroy, configuring fastly.toml for local backend overrides and store definitions, running Rust unit tests with cargo-nextest agai

xvcl

Extends Fastly VCL with loops, functions, constants, macros, conditionals, and includes via XVCL — a VCL transpiler that compiles .xvcl files into standard VCL. Use when writing VCL for Fastly, working with .xvcl files, generating repetitive VCL (multiple backends, routing rules, headers) with loops

What this can do

Capabilities declared by the plugin's own components — read straight from their frontmatter, not inferred.

Inherit all session tools

8 components declare no tool restrictions

~1,394 tokens of context used while enabled, before you invoke anything

Trust

83/100 · Excellent

2 factors scored below maximum

Unscoped tools

Documentation

README · ~3 min read

Fastly Agent Toolkit

A collection of skills for AI coding agents to work with the Fastly platform and edge computing tools.

Available skills

  • fastly: Working with the Fastly platform, including services, caching, VCL, WAF, TLS, DDoS protection, purging, and API usage.
  • fastly-cli: Using the Fastly CLI to manage services, compute apps, logging, WAF, TLS, key-value stores, and stats.
  • fastly-fiddle: Testing VCL against real Fastly edge infrastructure with Fastly Fiddle, covering assertion-based tests, the Fiddle HTTP API, shareable bug reproductions, and CI integration.
  • falco: VCL development with Falco, covering linting, testing, simulation, formatting, REPL, and Terraform integration.
  • fastlike: Running Fastly Compute locally with Fastlike (Go-based), covering backend configuration, builds, and testing.
  • viceroy: Running Fastly Compute locally with Viceroy (WASM-based), covering serving, configuration, testing, and SDK adaptation.
  • xvcl: The XVCL VCL transpiler, covering syntax extensions, subroutines, header manipulation, and caching logic.

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