performance-and-qa-ops

performance-and-qa-ops is a skill for Claude Code, Codex from jxoesneon/Ciel. It costs 24 tokens per session (511 once invoked), scanned A, original, Apache-2.0.

A quality-assurance workflow for measuring web and API performance, testing browser interactions, and watching deployed sites after a release. It checks user journeys, browser errors, network failures, screenshots, response times, and web performance metrics.

In plain words
What is it for?
Use it to benchmark websites and APIs, run automated browser smoke and interaction tests, compare screenshots, and monitor deployments after merging changes.
Why use it?
It catches broken interactions, layout changes, slow responses, and production-only failures that ordinary local tests may miss. It also provides thresholds for deciding when a deployment needs attention.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to benchmark websites and APIs, run automated browser smoke and interaction tests, compare screenshots, and monitor deployments after merging changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jxoesneon/ciel/performance-and-qa-ops
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add jxoesneon/Ciel --skill performance-and-qa-ops
Clone the repo
git clone --depth 1 https://github.com/jxoesneon/Ciel

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for performance-and-qa-ops

README.md
[![agentmods](https://agentmods.dev/badge/skills/jxoesneon/ciel/performance-and-qa-ops/github.svg)](https://agentmods.dev/skills/jxoesneon/ciel/performance-and-qa-ops)
Your own site
<a href="https://agentmods.dev/skills/jxoesneon/ciel/performance-and-qa-ops"><img src="https://agentmods.dev/badge/skills/jxoesneon/ciel/performance-and-qa-ops/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for performance-and-qa-ops

Your own site · 80×15
<a href="https://agentmods.dev/skills/jxoesneon/ciel/performance-and-qa-ops"><img src="https://agentmods.dev/badge/skills/jxoesneon/ciel/performance-and-qa-ops.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 511 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00024 $0.00511
Opus 5 $0.00012 $0.00255
Sonnet 5 $0.00005 $0.00102
Haiku 4.5 $0.00002 $0.00051

Measured 9d ago against content hash 161c2984a200, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

performance-and-qa-ops scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/performance-and-qa-ops/SKILL.md · 51 lines

What it actually says

CIEL ADAPTATION: Performance & QA Operations (The Shield)

This skill formalizes the verification of production-readiness. it prioritizes Core Web Vitals, interaction integrity, and post-deploy safety.

Benchmarking Layer

  1. Baselines: Store performance baselines in .ciel/benchmarks/.
  2. Web Vitals: Target LCP < 2.5s, CLS < 0.1, and INP < 200ms.
  3. API SLA: Benchmark latency under load (10 concurrent requests). Target p95 < 200ms.

Browser QA (Interaction)

  • Smoke Phase: Check console errors and network failures (4xx/5xx).
  • Interaction Phase: Verify critical user journeys (Login -> Checkout -> Logout).
  • Visual Phase: Screenshot at 3 breakpoints (375px, 768px, 1440px). Flag layout shifts > 5px.

Canary Monitoring

  • Sustained Watch: Monitor deployed URLs for 2 hours post-merge.
  • Alert Thresholds:
    • CRITICAL: Status != 200, Console Errors > 5, API 5xx.
    • WARNING: LCP increase > 500ms, Response time > 2x baseline.

Anti-Patterns

  • Dev-Only QA: Passing tests in local headless mode but ignoring production latency.
  • Blind Ship: Merging a PR that increases bundle size by > 20% without justification.
  • Silent Regression: Ignoring a 500ms LCP increase because it's "still under the limit."
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 51 lines · 24 tokens per session scan A 161c2984a200

Subscribe to this mod's changes

performance-and-qa-ops is a skill published in the GitHub repository jxoesneon/Ciel (1 stars, last pushed 5d ago), licensed Apache-2.0. It adds 24 tokens to every session and 511 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.