threat-model SKILL.md skillA
threat-model from haabe/mycelium is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add haabe/mycelium/threat-model@git:20261007.33e0656Pins git:20261007.33e0656 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- haabe/mycelium
- Path
plugins/mycelium/skills/threat-model/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261007.33e0656, committed Oct 7, 2026
- First version recorded
- May 22, 2026
- Size
- 11,396 bytes
- Repository stars
- 47
- License
- MIT
Use to conduct STRIDE threat modeling for a system or feature design.
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
# Threat Model Skill STRIDE threat modeling for secure design. ## Workflow 1. **Define scope**: What system/feature/component is being modeled? 2. **Draw data flow diagram** (textual): - Identify actors (users, external systems) - Identify processes (services, functions) - Identify data stores (databases, caches, files) - Identify data flows (what moves between components) - Identify trust boundaries (where trust level changes) 3. **For each component and data flow, assess STRIDE threats**: | Threat | Description | Question to Ask | |--------|------------|----------------| | **S**poofing | Impersonating something or someone | Can an attacker pretend to be this user/system? | | **T**ampering | Modifying data or code | Can data be changed in transit or at rest? | | **R**epudiation | Claiming to not have done something | Can a user deny an action without accountability? | | **I**nfo Disclosure | Exposing data to unauthorized parties | Can sensitive data leak? | | **D**enial of Service | Making the system unavailable | Can this component be overwhelmed? | …
Read the whole file at its exact version.
How to install
mdr add haabe/mycelium/threat-model@sha256:279f9de40b8820dcThe line at the top of this page pins the label git:20261007.33e0656, 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_dbudaj445sufrrph)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between May 22, 2026 and Oct 7, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.33e0656 latest | 2026-10-07 | 33e0656 | 11,396 B | A | view · diff |
| git:20260917.533cc63 | 2026-09-17 | 533cc63 | 11,381 B | A | view · diff |
| git:20260903.c21c5df | 2026-09-03 | c21c5df | 9,548 B | A | view · diff |
| git:20260903.00a8d89 | 2026-09-03 | 00a8d89 | 8,048 B | A | view · diff |
| git:20260704.7639f18 | 2026-07-04 | 7639f18 | 5,497 B | A | view · diff |
| git:20260525.9fac942 | 2026-05-25 | 9fac942 | 5,497 B | A | view · diff |
| git:20260522.1825b22 | 2026-05-22 | 1825b22 | 5,187 B | A | view |
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 (11396 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
haabe/mycelium · 47 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dbudaj445sufrrph GET https://markdownregistry.com/api/v1/resolve?ref=haabe/mycelium/threat-model GET https://markdownregistry.com/api/v1/blob/279f9de40b8820dcec13a1d47242aa434da0ddefd0d73e7edb2f841291503563
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.