competition-crypto-mobile SKILL.md skillA
competition-crypto-mobile 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-crypto-mobile@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-crypto-mobile/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260925.9330cc6, committed Sep 25, 2026
- Size
- 2,884 bytes
- Repository stars
- 28
- License
- MIT
Internal downstream skill for ctf-sandbox-orchestrator. CTF-sandbox workflow for crypto, encoding, steganography, APK, IPA, and mobile trust-boundary challenges. Use when the user asks to decode a blob, recover a transform chain or key, inspect hidden media payloads, hook an APK or IPA signer, inspect app storage, or replay mobile request-signing logic. Use only after `$ctf-sandbox-orchestrator` has already established sandbox assumptions and routed here.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Competition Crypto Mobile Use this skill only as a downstream specialization after `$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 active challenge depends on recovering a transform chain, hidden media payload, mobile signing path, or local trust boundary. Reply in Simplified Chinese unless the user explicitly requests English. ## Quick Start 1. Decide whether the dominant path is crypto, stego, or mobile. 2. Recover transforms in order; do not jump straight to the fanciest algorithm. 3. Record exact parameters and boundaries that affect the result. 4. Hook the narrowest mobile boundary that proves the behavior. 5. Reproduce the plaintext, payload, signed request, or accepted branch. ## Workflow ### 1. Crypto And Encoding - Reconstruct the chain step by step: container, compression, encoding, xor or substitution, crypto, integrity, final parse. - Keep exact keys, IVs, nonces, salts, tags, offsets, and byte order. ### 2. Stego …
Read the whole file at its exact version.
How to install
mdr add novaestellar/novahaku/competition-crypto-mobile@sha256:5414da68c747371cThe 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_34bugqxqqgdhoypq)
2 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 (2884 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_34bugqxqqgdhoypq GET https://markdownregistry.com/api/v1/resolve?ref=novaestellar/novahaku/competition-crypto-mobile GET https://markdownregistry.com/api/v1/blob/5414da68c747371caa1260ba7b01203fa3e0584497fe65e2a30de400157cab55
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.