auditing-saml-and-oidc-federation-trust SKILL.md skillA
auditing-saml-and-oidc-federation-trust from unboundcompute/security-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add unboundcompute/security-agent-skills/auditing-saml-and-oidc-federation-trust@git:20260829.b60f9b2Pins git:20260829.b60f9b2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- unboundcompute/security-agent-skills
- Path
skills/auditing-saml-and-oidc-federation-trust/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260829.b60f9b2, committed Aug 29, 2026
- Size
- 10,180 bytes
- Repository stars
- 26
- License
- MIT
Audit federated single sign-on for assertions a relying party should not trust: a SAML response whose signature is not verified over the right element so a wrapped or altered assertion passes, an OIDC ID token whose issuer, audience, or nonce is unchecked, a relying party that accepts an assertion for any user because the subject or email is trusted without binding, and a federation that honors an identity provider or signing key it should not. Covers SAML and OpenID Connect where a relying…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Auditing SAML and OIDC federation trust: the assertion is only as good as its verification Federated login moves the authentication decision to an identity provider and hands the relying party a signed assertion, a SAML response or an OIDC ID token, that says who the user is. The relying party's entire security then rests on verifying that assertion correctly, and the ways to verify it incorrectly are well worn. SAML signature wrapping slips an unsigned, attacker-authored assertion alongside a signed one so the application reads the wrong element; a signature checked over the wrong scope, or not at all, accepts a tampered response. An OIDC ID token whose issuer, audience, or nonce goes unchecked can come from the wrong provider, be minted for a different application, or be replayed. And a relying party that trusts a subject or email in the assertion without binding it to the verified issuer will authenticate any user an attacker names. The audit is not whether federation is configured but whether a forged or misbound assertion is refused. You audit this by testing each validation the relying party must perform on the assertion. ## When to use …
Read the whole file at its exact version.
How to install
mdr add unboundcompute/security-agent-skills/auditing-saml-and-oidc-federation-trust@sha256:83ed94736b6e326eThe line at the top of this page pins the label git:20260829.b60f9b2, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_nnnbwpoxulbwchlj)
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Versions
The registry has recorded 1 version of this file, committed on Aug 29, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10180 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
unboundcompute/security-agent-skills · 26 stars · license MIT · pushed 2026-09-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_nnnbwpoxulbwchlj GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/auditing-saml-and-oidc-federation-trust GET https://markdownregistry.com/api/v1/blob/83ed94736b6e326ec7468956ae6d1c2c6915c8564b283c1219fd17c547a00e15
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.