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fastly-fiddle

Skill from fastly/fastly-agent-toolkit

Testing & QA No risky patterns found curated contains scripts apitesttestingciinfrastructurewriting

Install

npx skills add fastly/fastly-agent-toolkit --skill fastly-fiddle

Runs the open skills CLI and installs the skill for your agent (Claude Code, Codex, Cursor …). Alternatively copy the skill folder into .claude/skills/ or upload it in Claude.ai under Settings → Skills.

As a Claude Code plugin

/plugin marketplace add anthropics/claude-plugins-official /plugin install fastly-agent-toolkit@fastly-agent-toolkit

This skill is part of the plugin “fastly-agent-toolkit”. In Claude Code the plugin installs it together with the plugin’s other skills, commands and hooks.

What does the fastly-fiddle skill do?

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.

Description from the SKILL.md in the source repository.

Questions about fastly-fiddle

What does the fastly-fiddle skill do?

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.

How do I install fastly-fiddle?

In a terminal: npx skills add fastly/fastly-agent-toolkit --skill fastly-fiddle. The skills CLI asks which agents to install it for. In Claude.ai you can upload the skill folder as a ZIP under Settings → Skills.

Which agents can use fastly-fiddle?

Skills use the open SKILL.md format, which Claude Code, Claude.ai, the Claude API, OpenAI Codex, Cursor, Gemini CLI and other agents support.

Is fastly-fiddle safe to use?

Our automatic check found no risky patterns (piped shell scripts, hidden characters, secret access, prompt overrides). It is not a full audit – read the SKILL.md and any scripts before installing.

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