What is quality-stack?

A project scanner that finds quality and testing tools in JVM, Android, Node.js/TypeScript, and Python projects. A monorepo is one repository containing multiple related projects; this add-on can scan those mixed projects too.

Auditing project quality tooling, identifying missing setup, and deciding which testing or development tools to configure.

It replaces manual inspection of build files and helps compare the tools already configured with research-based recommendations.

quality-stack — Skill for Claude Code by joaquimscosta: A project scanner that finds quality and testing tools…

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/joaquimscosta/arkhe-claude-plugins/quality-stack

Any agent

npx skills add joaquimscosta/arkhe-claude-plugins --skill quality-stack

Clone the repo

git clone --depth 1 https://github.com/joaquimscosta/arkhe-claude-plugins

Made for: Claude Code.

Or install devtools, the plugin that ships this one along with the rest of its 9 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/joaquimscosta/arkhe-claude-plugins/quality-stack.svg)](https://agentmods.dev/skills/joaquimscosta/arkhe-claude-plugins/quality-stack)

Your own site

<a href="https://agentmods.dev/skills/joaquimscosta/arkhe-claude-plugins/quality-stack"><img src="https://agentmods.dev/badge/skills/joaquimscosta/arkhe-claude-plugins/quality-stack.svg" alt="Measured on agentmods" height="20"></a>

Per session 148 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,989 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.

Model	Per session	Once invoked
Fable 5.1	$0.00148	$0.01989
Opus 5	$0.00074	$0.00994
Sonnet 5	$0.00030	$0.00398
Haiku 4.5	$0.00015	$0.00199

Measured 6d ago against content hash ce5b983feead, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

quality-stack 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 6d ago.

The scan reads SKILL.md. This mod also ships 8 executable files (scripts/scan_android.py, scripts/scan_cross_cutting.py, scripts/scan_jvm.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/devtools/skills/quality-stack/SKILL.md · 167 lines

How it starts

The opening of the file, as written. The whole thing — 167 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Quality Stack

Scan a project's build configuration across JVM, Android, Node.js, and Python ecosystems, cross-reference against curated research documents, and assist with tool setup.

Pre-flight

Run the orchestrator — it auto-detects ecosystems:

python3 <skill-path>/scripts/scan_project.py <project-root>

If "error": "no_ecosystem_detected", check nearby_project_files for subproject paths.

Monorepo? — use --recursive or --ecosystem to force a specific scanner:

python3 <skill-path>/scripts/scan_project.py --recursive <project-root>
python3 <skill-path>/scripts/scan_project.py --ecosystem node <project-root>

Legacy (JVM only) — scan_tooling.py still works as a backwards-compatible wrapper.

Two-Phase Workflow

Phase 1: Recommend

Run the scanner on the project root (see Pre-flight above).

Fetch research documents via WebFetch — only for detected ecosystems:

Android (when ecosystems contains "android"):

https://raw.githubusercontent.com/joaquimscosta/arkhe-claude-plugins/main/docs/research/android-ecosystem-tooling.md
https://raw.githubusercontent.com/joaquimscosta/arkhe-claude-plugins/main/docs/research/android-testing-ecosystem.md

JVM (when ecosystems contains "jvm"):

https://raw.githubusercontent.com/joaquimscosta/arkhe-claude-plugins/main/docs/research/jvm-quality-tools-evaluation.md
https://raw.githubusercontent.com/joaquimscosta/arkhe-claude-plugins/main/docs/research/kotlin-spring-boot-testing-ecosystem.md

Node.js (when ecosystems contains "node"):

https://raw.githubusercontent.com/joaquimscosta/arkhe-claude-plugins/main/docs/research/node-quality-tools-evaluation.md

Python (when ecosystems contains "python"):

https://raw.githubusercontent.com/joaquimscosta/arkhe-claude-plugins/main/docs/research/python-quality-tools-evaluation.md

Cross-cutting (always):

https://raw.githubusercontent.com/joaquimscosta/arkhe-claude-plugins/main/docs/research/cross-cutting-devtools-evaluation.md

Read the full file on GitHub · 167 lines

Files

What ships with it

11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

6d ago First seen · 167 lines · 148 tokens per session scan A ce5b983feead

Subscribe to this mod's changes

quality-stack is a skill published in the GitHub repository joaquimscosta/arkhe-claude-plugins (21 stars, last pushed 23d ago), licensed MIT. It adds 148 tokens to every session and 1,989 once invoked, about $0.0007 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 2026-08-30.

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