competition-kernel-container-escape SKILL.md skillA
competition-kernel-container-escape 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-kernel-container-escape@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-kernel-container-escape/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260925.9330cc6, committed Sep 25, 2026
- Size
- 3,038 bytes
- Repository stars
- 28
- License
- MIT
Internal downstream skill for ctf-sandbox-orchestrator. CTF-sandbox workflow for kernel attack surface, namespace and cgroup boundaries, container isolation assumptions, syscall paths, and escape primitive verification. Use when the user asks to analyze container-to-host escape paths, kernel exploit prerequisites, namespace crossover, capability misuse, or prove whether an exploit primitive crosses the sandbox boundary. Use only after `$ctf-sandbox-orchestrator` has already established sandbox…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Competition Kernel Container Escape Use this skill only as a downstream specialization after `$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 decisive step is proving a boundary crossing between containerized context and host or higher-privilege kernel context. Reply in Simplified Chinese unless the user explicitly requests English. ## Quick Start 1. Map runtime isolation first: namespaces, cgroups, seccomp, capabilities, LSM, and mount boundaries. 2. Separate exploit prerequisite, primitive, and boundary-crossing proof. 3. Record kernel version, config hints, runtime options, and reachable syscall surface. 4. Keep instrumented observations separate from pristine challenge path. 5. Reproduce one minimal primitive-to-boundary-crossing chain. ## Workflow ### 1. Map Isolation And Kernel Surface - Record namespace map, cgroup mode, capabilities, seccomp profile, AppArmor or SELinux state, mounted filesystems, and runtime sockets. …
Read the whole file at its exact version.
How to install
mdr add novaestellar/novahaku/competition-kernel-container-escape@sha256:c561f4908727dd52The 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_5g6bxdtmyff2h3oo)
5 badge image fetches in 30 days. What the badge shows.
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 (3038 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_5g6bxdtmyff2h3oo GET https://markdownregistry.com/api/v1/resolve?ref=novaestellar/novahaku/competition-kernel-container-escape GET https://markdownregistry.com/api/v1/blob/c561f4908727dd52e9c635c760df8ad4fa864d686e5d9e62347eba02ec3ed779
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.