severity

severity is a skill for Claude Code, Codex from mthines/agent-skills. It costs 162 tokens per session (3,186 once invoked), scanned A, original, MIT.

A severity rating method for bugs and review findings. It separates how harmful a problem would be from confidence that the problem is real, then assigns a critical, high, medium, or low tier.

In plain words
What is it for?
Use it to classify bugs and code-review findings, decide which issues should block a change, and give callers a consistent severity tier.
Why use it?
It prevents reviewers from treating uncertainty and potential damage as the same thing. It also ensures findings in sensitive areas such as authentication, billing, migrations, infrastructure, or secrets meet a minimum severity.

Skill for Claude CodeCodex

Part of the mthines-agent-skills plugin — 54 skills, 4 agents shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/mthines/agent-skills/severity
Any agent
npx skills add mthines/agent-skills --skill severity
Clone the repo
git clone --depth 1 https://github.com/mthines/agent-skills

Made for: Claude Code, Codex.

Or install mthines-agent-skills, the plugin that ships this one along with the rest of its 54 skills, 4 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for severity

README.md
[![agentmods](https://agentmods.dev/badge/skills/mthines/agent-skills/severity.svg)](https://agentmods.dev/skills/mthines/agent-skills/severity)
Your own site
<a href="https://agentmods.dev/skills/mthines/agent-skills/severity"><img src="https://agentmods.dev/badge/skills/mthines/agent-skills/severity.svg" alt="Measured on agentmods" height="20"></a>
Per session 162 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,186 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00162 $0.03186
Opus 5 $0.00081 $0.01593
Sonnet 5 $0.00032 $0.00637
Haiku 4.5 $0.00016 $0.00319

Measured 5d ago against content hash 0790697633da, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

severity scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/quality/severity/SKILL.md · 273 lines

How it starts

The opening of the file, as written. The whole thing — 273 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Severity Assessment

Rate how severe a finding or bug is if it is real, and emit one tier the caller acts on.

Severity is not confidence. confidence answers is this real / correct. severity answers how bad is it if it is. The two are orthogonal — a caller composes them (surface when severity clears the caller's bar for its tier AND confidence clears that bar). Never fold them into one number.

What is actually deterministic here. One thing: the path floor in Step 2 is an executable glob against the file path (a real case match), so it never depends on model judgment. The escalators (data-loss / security / concurrency shapes) are heuristic — an LLM reads the code shape. This is the honest split; do not call the escalators deterministic. It mirrors confidence's executable rule checks only for the path floor.

Contents


Mode Detection

Check the arguments: $ARGUMENTS

Argument Default Rates the severity of Typical caller
finding yes A single code-review finding A reviewer, to route and gate one finding
bug A bug, defect, or incident fix-bug / ci-auto-fix / batch-linear-tickets triage

If no argument is provided, default to finding. The rubric is shared; the mode only changes what "impact" refers to (a finding's failure vs. a bug's user harm).

Read the full file on GitHub · 273 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 273 lines · 162 tokens per session scan A 0790697633da

Subscribe to this mod's changes

severity is a skill published in the GitHub repository mthines/agent-skills (12 stars, last pushed today), licensed MIT. It adds 162 tokens to every session and 3,186 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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