using-sumo-qa

A QA routing and guidance workflow for testing, code review, test planning, and release-safety questions. TDD, or test-driven development, means writing tests before the code they check.

In plain words
What is it for?
It supports requests about test strategy, regression checks, exploratory testing, code review, test data, mutation testing, and whether changes are safe to merge.
Why use it?
It helps choose an appropriate way to investigate software behavior and keeps testing advice focused on evidence and risk.

Skill for Claude CodeCodex

Part of the sumo-qa plugin — 20 skills, 2 agents, 3 hooks, 1 MCP server shipped together

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.

agentmods
npx agentmods add skills/sumithr/sumo-qa/using-sumo-qa
Any agent
npx skills add sumithr/sumo-qa --skill using-sumo-qa
Clone the repo
git clone --depth 1 https://github.com/sumithr/sumo-qa

Made for: Claude Code, Codex.

Or install sumo-qa, the plugin that ships this one along with the rest of its 20 skills, 2 agents, 3 hooks, 1 MCP server.

Per session 127 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,701 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00127 $0.03701
Opus 5 $0.00063 $0.01851
Sonnet 5 $0.00025 $0.00740
Haiku 4.5 $0.00013 $0.00370

Measured 3d ago against content hash 8241cbdffe1e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

using-sumo-qa 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 3d 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/using-sumo-qa/SKILL.md · 128 lines

How it starts

The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Using sumo-qa

Announce at start: "Routing this QA intent."

Output discipline (mandatory)

Never surface internal taxonomy labels in user-facing output. No "Classification: X", "Approach: Y", "Per the checklist", "Step 3 of 6". The taxonomy is internal scaffolding; translate to natural English when the meaning matters to the user — "this is a behaviour change in pricing", not "Classification: business_logic_change". If you catch yourself typing a label, delete it.

Output economy (mandatory)

Spend output tokens on findings, not framing.

  • No preamble or self-narration. Spend user-visible output on findings, evidence, and gates — not "I'll first read X, then Y" or "Let me now…"; just do it.
  • One question per turn. Don't follow a question with "shall I proceed or clarify first?" — the question IS the gate.
  • Don't restate the user's input. They know what they asked.
  • Structure only when it earns its place. Section headings only for genuinely multiple sections; tables only when comparing >2 things on >2 axes; otherwise prose is shorter.
  • No closing pleasantries. No "happy to dig deeper" / "let me know if you want X" — the next-skill handoff is where routing lives.

The Iron Law

NO QA WORK WITHOUT FIRST DECIDING THE APPROACH.

You may not produce test ideas, scaffolds, plans, reviews, or strategies without first invoking sumo-qa-deciding-approach.

When to Use

This skill is the entry router for every QA-shaped request — "review my changes / is this safe to merge", "how should I test X", "create a test plan", "plan QA for this story", "scaffold the failing tests", "what test data do I need", "audit our test coverage", "design our QA strategy", and similar. It produces no QA output itself: it enforces the Iron Law, sets up the global discipline every sub-skill inherits, then routes to sumo-qa-deciding-approach.

Global discipline (inherited by every sub-skill)

Knowledge authority hierarchy

Read the full file on GitHub · 128 lines

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. 3d ago First seen · 128 lines · 127 tokens per session scan A 8241cbdffe1e

Subscribe to this mod's changes

using-sumo-qa is a skill published in the GitHub repository sumithr/sumo-qa (6 stars, last pushed 9d ago), licensed Apache-2.0. It adds 127 tokens to every session and 3,701 once invoked, about $0.0006 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 2026-08-31.

Related

Other skills, from other repositories

debug-optimize-lcp

Guides debugging and optimizing Largest Contentful Paint (LCP) using Chrome DevTools MCP tools. Use this skill whenever the user asks about LCP performance, slow page loads, Core Web Vitals optimization, or wants to understand why their page's main content takes too long to appear. Also use when the user mentions…

ChromeDevTools/chrome-devtools-mcp · 99 tokens

xcodebuildmcp-structured-output-review

Use when reviewing XcodeBuildMCP structured output schema changes, schema versioning, manifest outputSchema metadata, and JSON fixture compatibility.

getsentry/XcodeBuildMCP · 37 tokens

opik-diagnose

Surface the Opik traces worth a developer's attention, ranked by signal — errors, failed tool calls, latency, regressions, and low online-eval scores — plus Diagnostics issues. Reads live/production traces via the SDK (searchtraces and agentinsights) and works with no MCP; uses the MCP issue entity when connected.…

comet-ml/opik-mcp · 147 tokens

mcp-transport-contract-auditor

Route shaft-mcp transport-contract audits to the canonical playbook.

ShaftHQ/SHAFT_ENGINE · 22 tokens

create-operator

MUST READ before creating or moving any operator (createop, copyop, setopposition, or executepython builds). Required verification, canonical positioning recipe, and error-checking steps.

dylanroscover/Embody · 42 tokens

cortex-automate

Set up automation — prospective memory triggers, neuro-symbolic rules, and CLAUDE.md sync. Use when the user says 'remind me when', 'trigger when', 'create a rule', 'auto-remember', 'sync to CLAUDE.md', 'push insights', 'set up trigger', 'when I open this file', 'when this keyword appears', or when you want to…

cdeust/Cortex · 93 tokens