auditing-guard-gaps SKILL.md skillA
auditing-guard-gaps 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-guard-gaps@git:20260816.faa9c07Pins git:20260816.faa9c07 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-guard-gaps/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260816.faa9c07, committed Aug 16, 2026
- Size
- 5,902 bytes
- Repository stars
- 26
- License
- MIT
Find the missing-check bug by comparing sibling functions that reach the same sink - one validates its input, its peer does not. Use on an authorized source target to surface broken access control, missing bounds checks, and skipped sanitization that linear file-reading hides; when you suspect one handler in a family forgot the check its siblings all perform. Covers finding a guarded anchor, enumerating structural peers, diffing guard-for-guard by what each actually enforces, and confirming…
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 guard gaps: the unguarded peer is the bug Most access-control and missing-validation bugs aren't exotic - they're one handler in a family that forgot the check its siblings perform. The `admin_delete` that checks a role and the `bulk_delete` that doesn't. The `read_bounded` that validates length and the `read_fast` that trusts it. Reading files top-to-bottom hides these; comparing *peers* surfaces them. This is one of the highest-yield whitebox moves. ## The asymmetry you're hunting ``` guard → sink (the intended, safe path) ??? → sink (a peer path with the guard missing - the bug) ``` ## When to use - A sink is reachable from several call sites and you suspect one skips a check. - You're auditing an authz model, a parser family, or a handler group for a forgotten check. - A finding needs its "why is this wrong" framed as a concrete diff against a correct peer. ## Scope check Authorized source only. If you can't name the authorization, stop. ## The loop 1. **Pick a guarded anchor.** Find a function that *does* validate before a sensitive sink - an authz/ownership check, a bounds check, an allowlist, a …
Read the whole file at its exact version.
How to install
mdr add unboundcompute/security-agent-skills/auditing-guard-gaps@sha256:7ba55916b21ac772The line at the top of this page pins the label git:20260816.faa9c07, 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_7njroacvj7tym6ob)
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Versions
The registry has recorded 1 version of this file, committed on Aug 16, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
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- 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_7njroacvj7tym6ob GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/auditing-guard-gaps GET https://markdownregistry.com/api/v1/blob/7ba55916b21ac7727e4fba58d616f2fe99a81891b4cf72ced6255d39b45baf1b
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.