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Authentication & Authorization Implementation Patterns · microck | DecimalAI

codingby microck

Authentication & Authorization Implementation Patterns

microck/auth-implementation-patterns

Source microck/ordinary-claude-skills ↗License NOASSERTION

Master authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable access control systems.

SkillScore82Maintained

Automatic

Security & AppSec pack

Last verified 8/20/2026

What it changes

Passed 18 of 22 test cases with the skill, and 15 of 22 without it.

Without skill68%

With skill82%

Checks it passed that the model alone missed

Limits login attempts to 5 per 15-minute window.
Sets sameSite to strict on the cookie configuration.
Maps Role.ADMIN to an array containing ADMIN, MODERATOR, and USER roles.

3 fixed15 passed either way4 still failing0 broke

Pass-rate lift: +14 pp
Tokens: +238%
Agent turns: 0%
Response time: -14%

Model gemini-3.6-flashMeasured 8/20/2026v118 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/microck-auth-implementation-patterns/SKILL.md https://app.decimal.ai/s/microck-auth-implementation-patterns/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add microck-auth-implementation-patterns, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/microck-auth-implementation-patterns/ and pins it in .decimal/skills.lock

decimalai skills add microck-auth-implementation-patterns

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/microck-auth-implementation-patterns/SKILL.md https://app.decimal.ai/s/microck-auth-implementation-patterns/SKILL.md

Raw file: /s/microck-auth-implementation-patterns/SKILL.md ↗ · machine-readable summary at /s/microck-auth-implementation-patterns.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 3

Prompt

A developer suggests allowing up to 100 login attempts per 15-minute window on the Express `/api/auth/login` endpoint using `express-rate-limit` with Redis storage so users don't get locked out by mistakes. What is the maximum number of login attempts allowed within a 15-minute window?

What was checked, without and with the skill
Checked	Without skill	With skill
Limits login attempts to 5 per 15-minute window.	Missed	Passed

case-05 · gemini-3.6-flash · 8/20/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md629 linessingle file

Authentication & Authorization Implementation Patterns

Build secure, scalable authentication and authorization systems using industry-standard patterns and modern best practices.

When to Use This Skill

Implementing user authentication systems
Securing REST or GraphQL APIs
Adding OAuth2/social login
Implementing role-based access control (RBAC)
Designing session management
Migrating authentication systems
Debugging auth issues
Implementing SSO or multi-tenancy

Core Concepts

1. Authentication vs Authorization

Authentication (AuthN): Who are you?

Verifying identity (username/password, OAuth, biometrics)
Issuing credentials (sessions, tokens)
Managing login/logout

Authorization (AuthZ): What can you do?

Permission checking
Role-based access control (RBAC)
Resource ownership validation
Policy enforcement

2. Authentication Strategies

Session-Based:

Server stores session state
Session ID in cookie
Traditional, simple, stateful

Token-Based (JWT):

Stateless, self-contained
Scales horizontally

Track record

Benchmark

18 / 22

test cases passed, vs 15 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

microck / ordinary-claude-skills

skills_all/auth-implementation-patterns/SKILL.md

View on GitHub ↗

License NOASSERTIONImported 8/3/2026Version v1

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Ready to supercharge your AI agents?

See it in action

What's inside

Authentication & Authorization Implementation Patterns

When to Use This Skill

Core Concepts

1. Authentication vs Authorization

2. Authentication Strategies

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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