ctf-writeup SKILL.md skillA
This file is byte-identical to the first copy the registry indexed, one of 3 indexed copies. Same content hash, so the same checks give both the same grade.
ctf-writeup from naravid19/claude-ctf-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add naravid19/claude-ctf-skills/ctf-writeup@git:20260927.84043a0Pins git:20260927.84043a0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- naravid19/claude-ctf-skills
- Path
skills/ctf-writeup/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260927.84043a0, committed Sep 27, 2026
- First version recorded
- Sep 8, 2026
- Size
- 4,797 bytes
- Repository stars
- 4
- License
- MIT
Generates a single standardized submission-style CTF writeup for competition handoff and organizer review. Use after solving a CTF challenge to document the solution steps, tools used, and lessons learned in a structured format.
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
# CTF Write-up Generator
Generate a standardized submission-style CTF writeup for a solved challenge.
Default behavior:
- During an active competition, optimize for speed, clarity, and reproducibility
- Keep writeups short enough that a teammate or organizer can validate the solve quickly
- Always produce a `submission`-style writeup
- Prefer one complete solve script from challenge data to final flag
## Workflow
### Step 1: Gather Information
Collect the following from the current session, challenge files, and user input:
1. **Challenge metadata** — name, CTF event, category, difficulty, points, flag format
2. **Solution artifacts** — exploit scripts, payloads, screenshots, command output
3. **Timeline** — key steps taken, dead ends, pivots
```bash
# Scan for exploit scripts and artifacts
find . -name '*.py' -o -name '*.sh' -o -name 'exploit*' -o -name 'solve*' | head -20
# Check for flags in output files
grep -rniE '(flag|ctf|eno|htb|pico)\{' . 2>/dev/null
```
### Step 2: Generate Write-up
Write the writeup file as `writeup.md` (or `writeup-<challenge-name>.md`) using the submission template below.
---
## Templates
### Submission Format
```markdown
---
…Read the whole file at its exact version.
How to install
mdr add naravid19/claude-ctf-skills/ctf-writeup@sha256:f67169dc8287284dThe line at the top of this page pins the label git:20260927.84043a0, 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_mvpt3ki4t5xfbsth)
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Versions
The registry has recorded 2 versions of this file, between Sep 8, 2026 and Sep 27, 2026, about one every 19 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260927.84043a0 latest | 2026-09-27 | 84043a0 | 4,797 B | A | view · diff |
| git:20260908.0cdca9b | 2026-09-08 | 0cdca9b | 4,791 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 (4797 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
naravid19/claude-ctf-skills · 4 stars · license MIT · pushed 2026-10-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mvpt3ki4t5xfbsth GET https://markdownregistry.com/api/v1/resolve?ref=naravid19/claude-ctf-skills/ctf-writeup GET https://markdownregistry.com/api/v1/blob/f67169dc8287284d1beb9ef86ee9927567acb29df18656b5b05360bd84cd5ed8
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.
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