exfil-guard SKILL.md skillB
exfil-guard from mokuyoaxis/agent-guard is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mokuyoaxis/agent-guard/exfil-guard@git:20261009.e36aed8Pins git:20261009.e36aed8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mokuyoaxis/agent-guard
- Path
skills/exfil-guard/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261009.e36aed8, committed Oct 9, 2026
- First version recorded
- Sep 20, 2026
- Size
- 10,230 bytes
- Repository stars
- 22
- License
- MIT
Disclosure discipline for AI agents. Use before text leaves the machine: writing files, sending model requests, posting forge comments, committing or pushing, or when inspecting a JSON/dotenv config without exposing its values. Scans payloads for credentials and host-identifying paths, and offers an explicit read-only, value-free config view.
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
# exfil-guard You operate where what leaves the machine cannot be recalled. This skill is the egress side of the same promise `delete-guard` makes for destruction: deletion asks "can we come back?", disclosure asks "was this supposed to leave?". The four pillars, restated for egress: - **Scope** - the egress boundary. The workspace is exempt; everything outside it is a host identifier until proven otherwise. - **Recoverability** - **weak, and do not pretend otherwise.** There is no undo for a sent payload. The checker returns a *redaction plan* and safe verdict metadata; it cannot un-send anything. - **Authorization** - `NORMAL`/`RESTRICTED` is reused. Do not weaken the user's rules or exemptions. Workspace configuration remains writable by same-UID processes; its location is not a security boundary. - **Auditability** - trusted callers can persist safe rule ids, offsets and lengths. The text CLIs do not automatically append an egress audit. Matched bytes or hashes of low-entropy secrets must not be recorded. ## The one rule **Never put a credential in an outbound payload, and never hand a raw host path to anyone outside the workspace.** ```bash …
Read the whole file at its exact version.
How to install
mdr add mokuyoaxis/agent-guard/exfil-guard@sha256:fecd629b9a3eba7eThe line at the top of this page pins the label git:20261009.e36aed8, 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_iihqvuvq7rjv2hi6)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Sep 20, 2026 and Oct 9, 2026, about one every 3 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261009.e36aed8 latest | 2026-10-09 | e36aed8 | 10,230 B | B | view · diff |
| git:20261008.2e9ffa5 | 2026-10-08 | 2e9ffa5 | 10,248 B | B | view · diff |
| git:20261003.a9aec74 | 2026-10-03 | a9aec74 | 9,353 B | B | view · diff |
| git:20261003.03fb333 | 2026-10-03 | 03fb333 | 8,919 B | B | view · diff |
| git:20260924.ba089bf | 2026-09-24 | ba089bf | 7,386 B | B | view · diff |
| git:20260920.48f6481 | 2026-09-20 | 48f6481 | 6,270 B | B | view · diff |
| git:20260920.37aaa34 | 2026-09-20 | 37aaa34 | 5,866 B | B | view |
Audit of the latest version
- fail: No instruction to read or print local credentials (matched: cat .env)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10230 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 base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
mokuyoaxis/agent-guard · 22 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_iihqvuvq7rjv2hi6 GET https://markdownregistry.com/api/v1/resolve?ref=mokuyoaxis/agent-guard/exfil-guard GET https://markdownregistry.com/api/v1/blob/fecd629b9a3eba7e7de72c1009e9f2e40a0e51f40f538325098796ea68ad7438
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.