identity-federation

identity-federation is a skill for Claude Code, Codex from Saprophytic-seattle561/reverse-skill. It costs 35 tokens per session (502 once invoked), scanned A, a copy of identity-federation, MIT.

A workflow for reviewing federated login systems, where an identity provider signs users in to another application through standards such as SAML, OAuth2, or OIDC. It maps redirects, tokens, signatures, and session behavior.

In plain words
What is it for?
Use it to assess redirect URIs, state and nonce values, PKCE, SAML signatures, issuer settings, logout behavior, and token-related login flows.
Why use it?
Misconfigured single sign-on can let attackers change where tokens go, confuse accounts, or bypass checks that bind a login to the right request.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to assess redirect URIs, state and nonce values, PKCE, SAML signatures, issuer settings, logout behavior, and token-related login flows.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/saprophytic-seattle561/reverse-skill/identity-federation
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 Saprophytic-seattle561/reverse-skill --skill identity-federation
Clone the repo
git clone --depth 1 https://github.com/Saprophytic-seattle561/reverse-skill

Made for: Claude Code, Codex.

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 identity-federation

README.md
[![agentmods](https://agentmods.dev/badge/skills/saprophytic-seattle561/reverse-skill/identity-federation/github.svg)](https://agentmods.dev/skills/saprophytic-seattle561/reverse-skill/identity-federation)
Your own site
<a href="https://agentmods.dev/skills/saprophytic-seattle561/reverse-skill/identity-federation"><img src="https://agentmods.dev/badge/skills/saprophytic-seattle561/reverse-skill/identity-federation/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 identity-federation

Your own site · 80×15
<a href="https://agentmods.dev/skills/saprophytic-seattle561/reverse-skill/identity-federation"><img src="https://agentmods.dev/badge/skills/saprophytic-seattle561/reverse-skill/identity-federation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 502 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 100% copy Near-identical to another mod 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 $0.00035 $0.00502
Opus 5 $0.00017 $0.00251
Sonnet 5 $0.00007 $0.00100
Haiku 4.5 $0.00003 $0.00050

Measured 6d ago against content hash 673e4222ed9c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

identity-federation 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.

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.

Origin

This is a copy

100% identical to identity-federation — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/identity-federation/SKILL.md · 56 lines

What it actually says

Identity Federation (SAML / OIDC / OAuth)

ACTION REQUIRED(读完后立刻执行)

  1. NOW: 读取 precedent-pentest;SSO 测试账号与 IdP/SP 范围入 scope
  2. NOW: 禁止锁定真实用户账户的暴力尝试
  3. NEXT: 抓包工具与文档(元数据 URL)
  4. ACT: 协议流映射 → 常见错配 → 验证

适用场景

  • SAML Response 签名/断言篡改面(经典缺陷模式)
  • OIDC 隐式/授权码 + PKCE 缺失
  • redirect_uri / state / nonce 问题
  • IdP 与 SP 元数据、多租户 issuer 混淆
  • api-security JWT 攻击互补(本 skill 偏联邦与 SSO 流)

工作流

□ 画清:User → SP → IdP → Token → SP
□ 收集:/.well-known/openid-configuration、SAML metadata
□ 检查:redirect_uri 精确匹配、state 绑定、PKCE
□ 检查:SAML 签名覆盖范围、algorithm 降级
□ 会话固定与登出失效

工具链

工具 用途
Burp + SAML Raider 等 断言编辑(授权)
jwt_tool JWT 段
浏览器 DevTools 重定向链
IdP 管理日志 审计

参考

  • references/sso-flow-checklist.md
  • ../api-security/ ../windows-ad/(企业 IdP)

路由上下文

上游: MASTER R37
下游: 纯 API JWT → api-security;云 IdP → cloud-k8s

任务完成自检

  • 是否映射完整 SSO 流?
  • 每个 Finding 是否有复现与影响?
  • Checklist?
Files

What ships with it

1 file 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.

  1. 6d ago First seen · 56 lines · 35 tokens per session scan A 673e4222ed9c

Subscribe to this mod's changes

identity-federation is a skill published in the GitHub repository Saprophytic-seattle561/reverse-skill (1 stars, last pushed 2d ago), licensed MIT. It adds 35 tokens to every session and 502 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to identity-federation, differing in 0 lines, and is treated as a copy.

Related

Other skills, from other repositories

burp-scan

Burp Suite scanning via MCP tools — passive traffic analysis, active payload testing, OOB verification, and vulnerability reporting using Burp's proxy, HTTP sender, Collaborator, and scanner APIs. Use when the user has Burp Suite running with the AI Agent MCP server and wants to scan, test, or analyze web traffic…

six2dez/burp-ai-agent · 87 tokens

solopi-ai

A command-line framework for testing Android apps and devices with SoloPi, including on-device or cloud AI decision models. It manages devices, test cases, recorded interactions, replays, performance history, and evidence.

alipay/SoloPi · 127 tokens

argent-tv-interact

Control and inspect TV apps via argent — Apple TV (tvOS), Android TV (leanback), and Amazon Fire TV (Vega). Boot the target, read focus, navigate with the D-pad remote, type, screenshot, and on Vega debug the JS runtime (evaluate, console logs, network inspector). Use when a task targets a TV (runtimeKind "tv", or…

software-mansion/argent · 107 tokens

flutter-feature-based-clean-architecture

Organize Flutter apps with modular feature-based clean architecture. Use when creating features under lib/features/ with domain, data, and presentation layers. Do not use for test-only, BlocBuilder, navigation, or spinner requests.

HoangNguyen0403/agent-skills-standard · 51 tokens

Detox Mobile Testing

Gray-box end-to-end testing for React Native apps with Detox. Covers .detoxrc.js configuration, build and test commands, matchers, device.launchApp control, automatic synchronization, and macOS CI pipelines.

PramodDutta/qaskills · 48 tokens

database-redis

Optimize Redis as cache and coordination infrastructure with TTL, eviction, and latency-aware key design. Use when implementing Redis caching, key invalidation, or Redis performance work.

HoangNguyen0403/agent-skills-standard · 37 tokens