patch-prioritization

A security workflow for deciding which software vulnerabilities to fix first and when they must be addressed. It uses SSVC, EPSS, and the CISA Known Exploited Vulnerabilities catalog to support those decisions.

In plain words
What is it for?
Use it to assign patch deadlines, schedule patch windows, assess temporary protections, and document accepted or deferred risk.
Why use it?
It helps turn a long list of vulnerabilities into an ordered remediation plan with deadlines, exceptions, and temporary safeguards.

Skill for Claude CodeCodex

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/unitoneai/securityskills/patch-prioritization
Any agent
npx skills add UnitOneAI/SecuritySkills --skill patch-prioritization
Clone the repo
git clone --depth 1 https://github.com/UnitOneAI/SecuritySkills

Made for: Claude Code, Codex.

Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,564 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 $0.00088 $0.05564
Opus 5 $0.00044 $0.02782
Sonnet 5 $0.00018 $0.01113
Haiku 4.5 $0.00009 $0.00556

Measured 2d ago against content hash bde59ea64258, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

patch-prioritization 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 2d 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/vuln-management/patch-prioritization/SKILL.md · 413 lines

How it starts

The opening of the file, as written. The whole thing — 413 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Patch Prioritization & SLA Management -- SSVC 2.1 / EPSS v3 / CISA KEV

Frameworks: SSVC 2.1 (CERT/CC), EPSS v3 (FIRST.org), CISA KEV (DHS/CISA) Role: Security Engineer, vCISO Time: 20-40 min Output: Prioritized patch plan with SLA assignments, exception documentation, and risk acceptance artifacts


When to Use

If a target is provided via arguments, focus the review on: $ARGUMENTS

Use this skill when managing a vulnerability remediation backlog, when assigning or validating patch SLAs, when a patch window needs to be scheduled against business constraints, when evaluating compensating controls as interim mitigation, or when processing risk acceptance or exception requests for deferred patches.

Do not use when: The task is initial CVE triage and severity scoring (use cve-triage), detection rule creation for unpatched systems (use detection-engineering), or SBOM-level dependency analysis (use sbom-analysis).


Context the Agent Needs

Before starting, collect or confirm:

  • Vulnerability inventory: List of CVEs or vulnerability findings pending remediation, including scanner source (Qualys, Tenable, Rapid7, Snyk, Trivy)
  • Current SLA assignments: Existing SLA tiers and deadlines for each finding, if previously triaged
  • Asset inventory context: Business criticality, exposure (internet-facing, internal, air-gapped), owner, and environment (production, staging, dev) for affected systems
  • Patch availability: Whether vendor patches, hotfixes, or workarounds exist for each CVE
  • Change management constraints: Maintenance windows, freeze periods, change advisory board (CAB) schedules
  • Compensating controls inventory: WAF rules, network segmentation, EDR policies, disabled features currently in place
  • Compliance mandates: Applicable regulatory requirements (CISA BOD 22-01, PCI DSS 4.0 Requirement 6.3.3, HIPAA, FedRAMP)
  • Historical EPSS data: EPSS score trends over 7/30/90 days if available (API: https://api.first.org/data/v1/epss)

Read the full file on GitHub · 413 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. 2d ago First seen · 413 lines · 88 tokens per session scan A bde59ea64258

Subscribe to this mod's changes

patch-prioritization is a skill published in the GitHub repository UnitOneAI/SecuritySkills (58 stars, last pushed 2mo ago), licensed MIT. It adds 88 tokens to every session and 5,564 once invoked, about $0.0004 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 2026-08-30.