Severity Classify
Classify an issue, finding, or vulnerability by severity level (S1-S4)
- Type
- Slash Command
- Repository
- jeremylongshore/tons-of-skills-marketplace
- GitHub stars
- 2.8k
- License
- MIT
- Repo last updated
- Sep 27, 2026
What Severity Classify is
Severity Classify is a slash command published in the jeremylongshore/tons-of-skills-marketplace repository on GitHub, which has about 2.8k stars. The repository describes itself as: “Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.”
A slash command is a reusable prompt saved as a markdown file and run by typing its name after a slash. In Claude Code, custom commands have been merged into skills: a file in .claude/commands/ and a skill folder in .claude/skills/ both create the same kind of command, and existing command files keep working.
Severity Classify gives you a repeatable way to run the same instructions without retyping them, optionally with arguments.
How to install Severity Classify
Claude Code
- Download severity-classify.md from the repository.
- Save it to ~/.claude/commands/ (all projects) or .claude/commands/ (one project). As a skill, you can instead save it as ~/.claude/skills/<name>/SKILL.md.
- Run it by typing / followed by its name.
Claude Cowork
- Turn the command into a skill: create a folder with the file saved as SKILL.md and zip it.
- In Customize → Skills, click +, then upload the ZIP.
- Run it from any task with / and the skill name.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
An excerpt from plugins/security/severity1-marketplace/commands/severity-classify.md, shared under the repository's MIT license. Read the full file on GitHub.
Analyze the provided issue, bug report, or security finding and assign an appropriate severity level.
Severity Levels
S1 — Critical
- System completely down or unusable
- Active data loss or corruption
- Security breach with confirmed exploitation
- No workaround available
- Response time: Immediate
S2 — High
- Major functionality broken for many users
- Security vulnerability with high exploitability
- Data integrity at risk
- Workaround exists but is impractical
- Response time: Within 4 hours
S3 — Medium
- Functionality degraded but operational
- Security issue with limited scope
- Reasonable workaround available
- Affects subset of users or use cases
- Response time: Within 24 hours
S4 — Low
- Minor issue or cosmetic defect
- Enhancement request
- Documentation improvement
- Edge case with minimal impact
- Response time: Backlog
Classification Process
- Read the issue — Understand the full context of the report
- Assess impact — Determine scope, affected users, and business impact
- Evaluate exploitability — For security issues, assess ease of exploitation
- Check for workarounds — Determine if users can work around the issue
- Assign severity — Apply the appropriate S1-S4 level
- Provide rationale — Explain the classification with supporting evidence
Output Format
## Severity: S[1-4] — [Critical|High|Medium|Low]
**Impact:** [Description of impact]
**Scope:** [How many users/systems affected]
**Workaround:** [Available|None|Impractical]
**Rationale:** [Why this severity was assigned]
### Recommended Actions
1. [First action]
2. [Second action]Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Severity Classify?
Severity Classify is a slash command for Claude Code and Claude Cowork from the jeremylongshore/tons-of-skills-marketplace repository on GitHub. Classify an issue, finding, or vulnerability by severity level (S1-S4)
How do I install Severity Classify in Claude Code?
Download severity-classify.md from the repository. Save it to ~/.claude/commands/ (all projects) or .claude/commands/ (one project). As a skill, you can instead save it as ~/.claude/skills/<name>/SKILL.md. Run it by typing / followed by its name.
Can I use Severity Classify in Claude Cowork?
Turn the command into a skill: create a folder with the file saved as SKILL.md and zip it. In Customize → Skills, click +, then upload the ZIP. Run it from any task with / and the skill name.
Is Severity Classify safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
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