repo-quality-system-lifecycle

repo-quality-system-lifecycle is a skill for Claude Code from Arenukvern/skill_steward. It costs 115 tokens per session (4,419 once invoked), scanned A, original, MIT.

A repository quality framework for setting up or checking the documents, rules, tests, and evidence that let people and coding agents work safely in a software repository.

In plain words
What is it for?
Use it to create or audit quality rules for apps, libraries, command-line tools, plugins, testing harnesses, and connected repositories.
Why use it?
It reveals missing ownership, unclear decisions, weak validation, and unsupported claims before they cause confusion or unsafe changes.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions AGENTS.md.

Part of the skill-steward plugin — 15 skills shipped together

Good fit Use it to create or audit quality rules for apps, libraries, command-line tools, plugins, testing harnesses, and connected repositories.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/arenukvern/skill_steward/repo-quality-system-lifecycle
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 Arenukvern/skill_steward --skill repo-quality-system-lifecycle
Clone the repo
git clone --depth 1 https://github.com/Arenukvern/skill_steward

Made for: Claude Code.

Or install skill-steward, the plugin that ships this one along with the rest of its 15 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.

agentmods badge for repo-quality-system-lifecycle

README.md
[![agentmods](https://agentmods.dev/badge/skills/arenukvern/skill_steward/repo-quality-system-lifecycle/github.svg)](https://agentmods.dev/skills/arenukvern/skill_steward/repo-quality-system-lifecycle)
Your own site
<a href="https://agentmods.dev/skills/arenukvern/skill_steward/repo-quality-system-lifecycle"><img src="https://agentmods.dev/badge/skills/arenukvern/skill_steward/repo-quality-system-lifecycle/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 repo-quality-system-lifecycle

Your own site · 80×15
<a href="https://agentmods.dev/skills/arenukvern/skill_steward/repo-quality-system-lifecycle"><img src="https://agentmods.dev/badge/skills/arenukvern/skill_steward/repo-quality-system-lifecycle.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 115 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,419 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 $0.00115 $0.04419
Opus 5 $0.00057 $0.02210
Sonnet 5 $0.00023 $0.00884
Haiku 4.5 $0.00012 $0.00442

Measured 11d ago against content hash 1fc566f6d535, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

repo-quality-system-lifecycle 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 11d 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/repo-quality-system-lifecycle/SKILL.md · 279 lines

How it starts

The opening of the file, as written. The whole thing — 279 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repo Quality System Lifecycle

Use this skill to make a repository legible, safe, and improvable for humans and agents. It is broader than Agent Skill authoring and narrower than product implementation.

When to use

  • Setting up Engineering Stewardship in an app, library, CLI/tool, plugin, harness, or meta repo.
  • Auditing whether a repo has enough charter, docs, decisions, validation, evidence, and safety metadata for agents to work without hidden local context.
  • Designing a repo quality contract before adding harness actions, diagnostics, or automation.
  • Separating repo stewardship proof from product runtime correctness.
  • Auditing a multi-repo integration chain where one repo must publish, tag, or stabilize before a consumer repo can truthfully cut over.
  • Deciding whether repeated repo friction should stay native, become docs/FAQ, become an API/schema/generator, become harness proof, or be deleted/collapsed.
  • Auditing broad product claims such as platform support, compatibility, maturity, or "works everywhere" language against live evidence and owner boundaries.
  • Running a repository ecology review over plans, specs, docs, skills, schemas, tools, evidence, and validation surfaces to choose explicit dispositions.

When not to use

  • Writing product/domain features directly; use the repo's native stack and product skills.
  • Creating or packaging an Agent Skill; use skill-authoring-lifecycle.
  • Maintaining a steward.yaml action contract, probes, benchmarks, or CLI/MCP parity after the baseline exists; use mcp-harness-repo-maintainer.
  • Generalizing a proven harness across producer/consumer repos; use harness-engineering-lifecycle.

Workflow

1. Classify the repo

Pick one primary archetype. Do not let every repo become a harness repo.

Archetype Primary artifact First proof
App Product behavior and runtime Product validation gate plus debugging path
Library Public API and package contract Tests, package dry-run, compatibility note
CLI/tool Commands and machine-readable outputs --help, --json, golden output or command test
Plugin Host integration Manifest, permissions, install/rollback note
Harness/action contract Agent-facing action/probe/benchmark Quick-safe action and benchmark scenario
Meta/governance Skills, docs, policies, validators Skill validation, eval cases, registry consistency

Read the full file on GitHub · 279 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. 11d ago First seen · 279 lines · 115 tokens per session scan A 1fc566f6d535

Subscribe to this mod's changes

repo-quality-system-lifecycle is a skill published in the GitHub repository Arenukvern/skill_steward (11 stars, last pushed 27d ago), licensed MIT. It adds 115 tokens to every session and 4,419 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 2026-08-30.