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vuestrata: Skill for Claude Code

.github/skills/vuestrata-auth-contract-checks/SKILL.md

vuestrata-auth-contract-checks is a skill for Claude Code from boussadjra/vuestrata. It costs 30 tokens per session (229 once invoked), scanned A, original, MIT.

A checklist for checking that authentication changes agree across the application, configuration, test doubles, user screens, environment examples, and documentation. Authentication is the part of an app that handles sign-in and user accounts.

In plain words
What is it for?
Use it when changing login, registration, logout, user refresh, social sign-in, magic links, authentication adapters, or related tests and docs.
Why use it?
It helps catch mismatched names, settings, or behavior that can make sign-in work in one place but fail in another.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

This is boussadjra/vuestrata's own configuration. It tells Claude Code how to work on vuestrata itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything vuestrata configures →

not rated 111repo 11d ago A scan SkillSpector: pass 30 tokens original MIT
View source ↗ boussadjra/vuestrata vuestrata.vercel.app
Reuse

Borrowing it

Nothing to install: this file belongs to boussadjra/vuestrata. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/boussadjra/vuestrata/main/.github/skills/vuestrata-auth-contract-checks/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/boussadjra/vuestrata

Made for: Claude Code.

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 vuestrata-auth-contract-checks

README.md
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Your own site
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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 vuestrata-auth-contract-checks

Your own site · 80×15
<a href="https://agentmods.dev/skills/boussadjra/vuestrata/vuestrata-auth-contract-checks"><img src="https://agentmods.dev/badge/skills/boussadjra/vuestrata/vuestrata-auth-contract-checks.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 229 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00030 $0.00229
Opus 5.5 $0.00012 $0.00092
Sonnet 5.5 $0.00006 $0.00046
Haiku 4.5 $0.00003 $0.00023

Measured 2mo ago against content hash 3f82f83df1dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vuestrata-auth-contract-checks 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 2mo 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.

.github/skills/vuestrata-auth-contract-checks/SKILL.md · 25 lines

What it actually says

Vuestrata Auth Contract Checks

Use this skill when auth work could introduce contract drift.

Check

  • canonical auth env key usage
  • adapter selection in runtime, docs, and .env.example
  • useAuth() flows: login, register, logout, current user, refresh, social, magic link
  • mock handlers and auth pages
  • auth-related tests and docs

Rules

  1. Audit src/modules/auth/composables/useAuth.ts, src/modules/app/config/app.config.ts, src/modules/auth/mocks/auth.handlers.ts, auth pages, .env.example, README.md, and docs/6.configuration/.
  2. Treat env-key or adapter-name drift as a regression.
  3. Fix the source of drift, not just the docs.
  4. Do not finish auth work unless runtime, tests, mocks, env examples, and docs agree.
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. 2mo ago First seen · 25 lines · 30 tokens per session scan A 3f82f83df1dc

Subscribe to this mod's changes

vuestrata-auth-contract-checks is a skill published in the GitHub repository boussadjra/vuestrata (111 stars, last pushed 11d ago), licensed MIT. It adds 30 tokens to every session and 229 once invoked, about $0.0001 per session on Opus 5.5. 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.

Code reviewSecurityTypeScripttailwindcssvitevitejsvuejsvuejs3
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