linux-troubleshooting SKILL.md skillA
linux-troubleshooting from mehranqadirian/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mehranqadirian/skills/linux-troubleshooting@git:20261104.b07e2c3Pins git:20261104.b07e2c3 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mehranqadirian/skills
- Path
devops/linux-troubleshooting/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261104.b07e2c3, committed Nov 4, 2026
- Size
- 3,427 bytes
- Repository stars
- 13
- License
- none declared
Diagnoses problems on Linux machines in a structured, read-only-first way. Use whenever the user reports a slow or frozen system, full disk, out-of-memory kills, a service that will not start, a port that is not reachable, DNS or network failures, permission denied or SELinux errors, or asks to check the health of a server or laptop, even if they only say "my Fedora is acting weird". Starts with a read-only snapshot script and never suggests destructive commands as a first step.
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
# linux-troubleshooting
Find the cause before changing anything. A read-only snapshot gives facts in seconds; the playbooks turn symptoms into the next command.
```
linux-troubleshooting/
├── SKILL.md
├── scripts/
│ └── sysdiag.sh load, memory, swap, disk and inodes, failed units, journal errors, network, ports
└── references/
└── playbooks.md slow machine, disk full, services, ports, DNS, permissions, SELinux, logs, safety
```
## When to use
- Slow, frozen or overheating machine
- Disk or inode exhaustion, memory pressure, OOM kills
- A systemd service fails or keeps restarting
- Something cannot connect, or a port does not answer
- Permission or SELinux denials
- A routine health check of a server or workstation
## Workflow
1. **Get the facts**: run `bash scripts/sysdiag.sh` (use `--brief` for warnings only). It never uses sudo and never changes anything. Thresholds can be adjusted with `DISK_WARN`, `INODE_WARN`, `MEM_WARN`, `SWAP_WARN`, `LOAD_FACTOR`.
2. **Read the verdict**: each warning names the subsystem. Pick the matching playbook in `references/playbooks.md`.
…Read the whole file at its exact version.
How to install
mdr add mehranqadirian/skills/linux-troubleshooting@sha256:8c76743495a039d0The line at the top of this page pins the label git:20261104.b07e2c3, 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_5yyg4erzbuysfmwj)
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Versions
The registry has recorded 1 version of this file, committed on Nov 4, 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 (3427 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
mehranqadirian/skills · 13 stars · license none declared · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5yyg4erzbuysfmwj GET https://markdownregistry.com/api/v1/resolve?ref=mehranqadirian/skills/linux-troubleshooting GET https://markdownregistry.com/api/v1/blob/8c76743495a039d08d40b8cdd50ee0c3af16279d2cfcbe1eca3b2003b9921a3b
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.