auditing-ios-app-group-and-pasteboard-exposure SKILL.md skillA
auditing-ios-app-group-and-pasteboard-exposure 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-ios-app-group-and-pasteboard-exposure@git:20260908.e3ae18aPins git:20260908.e3ae18a 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-ios-app-group-and-pasteboard-exposure/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260908.e3ae18a, committed Sep 8, 2026
- Size
- 9,968 bytes
- Repository stars
- 26
- License
- MIT
Audit sensitive data leaving an iOS app's protection through shared containers and system-wide channels, where a secret or private value is written to a shared app-group container, a shared keychain access group, the general pasteboard, or app state that lands in snapshots and extensions, so another app, an app extension, or any process reading the pasteboard can recover it, because the shared surface is broader than the data's sensitivity requires. Use when reviewing what an iOS app shares…
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 iOS app group and pasteboard exposure: when a secret leaves the app through a shared door An iOS app is meant to be a sealed container, but it has several legitimate doors through which data leaves: an app-group container it shares with its own extensions, a shared keychain access group, the general pasteboard any app can read, and the state the system captures in snapshots or hands to extensions. Each door is fine for data whose sensitivity tolerates the audience on the other side, and a leak when a secret goes through a door wider than it should. A token written to an app-group container is readable by every extension and app in that group; a secret in an over-broad shared keychain group is reachable by apps that should not have it; a value copied to the general pasteboard is readable by any app, including ones the user never launched deliberately; and sensitive data left on screen or in memory lands in a snapshot or an extension context. The bug is a sensitive value on a shared surface whose audience exceeds the app's own boundary. You audit these by listing what the app writes to each shared surface and who can read it. ## When to use …
Read the whole file at its exact version.
How to install
mdr add unboundcompute/security-agent-skills/auditing-ios-app-group-and-pasteboard-exposure@sha256:d6f060999977c8b9The line at the top of this page pins the label git:20260908.e3ae18a, 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_zjty6ls5ldnpb6dd)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 8, 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 (9968 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_zjty6ls5ldnpb6dd GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/auditing-ios-app-group-and-pasteboard-exposure GET https://markdownregistry.com/api/v1/blob/d6f060999977c8b993145fa57be50a5740da4ae00105ee6eceec6790ad94007f
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.