competition-kerberos-delegation SKILL.md skillA
competition-kerberos-delegation from novaestellar/novahaku is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add novaestellar/novahaku/competition-kerberos-delegation@git:20260925.9330cc6Pins git:20260925.9330cc6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- novaestellar/novahaku
- Path
testing/ctf-sandbox/competition-kerberos-delegation/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260925.9330cc6, committed Sep 25, 2026
- Size
- 2,882 bytes
- Repository stars
- 28
- License
- MIT
Internal downstream skill for ctf-sandbox-orchestrator. CTF-sandbox workflow for Kerberos delegation, SPN trust edges, S4U abuse, RBCD, constrained or unconstrained delegation, and service-ticket acceptance. Use when the user asks about constrained delegation, unconstrained delegation, RBCD, S4U, SPNs, ticket acceptance, or how a Kerberos trust edge turns into effective privilege under sandbox assumptions. Use only after `$ctf-sandbox-orchestrator` has already established sandbox assumptions…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Competition Kerberos Delegation Use this skill only as a downstream specialization after `$ctf-sandbox-orchestrator` is already active and has established sandbox assumptions, node ownership, and evidence priorities. If that has not happened yet, return to `$ctf-sandbox-orchestrator` first. Use this skill when the hard part is not "is there Kerberos here," but which delegation edge exists, which ticket is being minted, and which service really accepts it. Reply in Simplified Chinese unless the user explicitly requests English. ## Quick Start 1. Write the trust chain first: principal -> delegation edge -> ticket type -> target SPN -> accepting service -> resulting privilege. 2. Separate ticket possession from accepted privilege. 3. Keep SPNs, delegation mode, PAC/group data, encryption type, and service acceptance in one compact evidence block. 4. Reproduce one minimal delegation chain before broadening into variants. 5. Tie every privilege claim to a specific accepted ticket or service-side effect. ## Workflow ### 1. Identify The Delegation Edge …
Read the whole file at its exact version.
How to install
mdr add novaestellar/novahaku/competition-kerberos-delegation@sha256:1fe71ec9611af182The line at the top of this page pins the label git:20260925.9330cc6, 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_2htrn3hwjt2a5cgg)
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Versions
The registry has recorded 1 version of this file, committed on Sep 25, 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 (2882 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
novaestellar/novahaku · 28 stars · license MIT · pushed 2026-09-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2htrn3hwjt2a5cgg GET https://markdownregistry.com/api/v1/resolve?ref=novaestellar/novahaku/competition-kerberos-delegation GET https://markdownregistry.com/api/v1/blob/1fe71ec9611af182a2b0944d7586e027293aa5622473893b9baa9c19efd8cc6d
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.