K6
k6 load-testing reference and scenario/threshold patterns — k6 only, not Locust as the old card claimed.
Test report
- Verdict
- Tested · Works
- Score
- Tested
- Jul 14, 2026
- Environment
- Claude Code 2.x (agent harness)
- Upstream re-checked
- Aug 10, 2026 · 335faf1
Ran both a plain constant-VU script and a skill-guided ramping-VU-plus-threshold script live with a real k6 2.1.0 install — the threshold-gated version is genuinely closer to a real SLA check, though 4 of its 5 references/*.md links point at files that don't exist in this folder.
Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works
- Installs cleanly 4/5
- Triggers reliably 5/5
- Output vs. baseline 8/10
- Docs & honesty 3/5
What K6 does
Official Grafana Labs skill covering k6 script writing in JS/TS: all test types (smoke/load/stress/spike/soak/breakpoint), scenarios/executors, thresholds, checks, custom metrics, WebSocket and browser testing, and k6 Cloud/CI integration. Triggers on writing, debugging, or interpreting k6 tests. It is k6-specific — it does not cover Locust despite the old card's tagline implying both. Four of its five references/*.md links (scenarios-executors, test-types, javascript-api, examples) point at files that don't exist in this repo path, though the inline SKILL.md content is self-sufficient for writing real tests without them.
How to install K6
git clone https://github.com/grafana/skills
cd skills
mkdir -p ~/.claude/skills
cp -r skills/grafana-k6/k6 ~/.claude/skills/load-test-planner
Skills live in ~/.claude/skills/ (global) or .claude/skills/
(per-project). Restart Claude Code after installing.
Commands — how to trigger K6
-
/load-test-plannerk6 load-testing reference and scenario/threshold patterns — k6 only, not Locust as the old card claimed.
It also activates on plain-language prompts like these:
-
Design a k6 load test scenario from our peak traffic pattern -
Set sensible thresholds for a Locust load test -
Turn this production traffic description into a load-test plan
Frequently asked questions
- Is the K6 skill free?
- Yes. The skill itself is free from grafana/skills. SkillProof publishes the install command and an independent test verdict at no cost.
- Does K6 work with Claude Code?
- We tested it with Claude Code 2.x (agent harness) on Jul 14, 2026. Verdict: Tested · Works. Ran both a plain constant-VU script and a skill-guided ramping-VU-plus-threshold script live with a real k6 2.1.0 install — the threshold-gated version is genuinely closer to a real SLA check, though 4 of its 5 references/*.md links point at files that don't exist in this folder.
- What is the K6 SkillProof Score?
- 8.0/10 — installs cleanly 4/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 3/5.
- How do I install K6?
- Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
- Can I use K6 with Cursor, Copilot, Gemini CLI, Codex or other AI tools?
- The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.