What is security-assessment?

An automated security review for an entire codebase. It checks the OWASP Top 10, a widely used list of common web-application risks, and ASVS Level 1, a baseline set of application-security requirements.

Use it for a full security audit, vulnerability assessment, or pre-release review of an application.

It brings a broad security checklist into one review and can also create tests for findings. The result is intended to reveal vulnerabilities before they reach users.

security-assessment — Skill for Claude Code by Security-Phoenix-demo

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo

git clone --depth 1 https://github.com/Security-Phoenix-demo/security-skills-claude-code

agentmods

npx agentmods add skills/security-phoenix-demo/security-skills-claude-code/security-assessment

Made for: Claude Code.

Or install phoenix-security-review, the plugin that ships this one along with the rest of its 6 skills, 4 commands, 1 agent.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/security-assessment/github.svg)](https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/security-assessment)

Your own site

<a href="https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/security-assessment"><img src="https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/security-assessment/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/security-assessment"><img src="https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/security-assessment.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 152 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,995 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00152	$0.03995
Opus 5.5	$0.00061	$0.01598
Sonnet 5.5	$0.00030	$0.00799
Haiku 4.5	$0.00015	$0.00400

Measured 1mo ago against content hash 82495a75f794, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

security-assessment 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 1mo 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.

plugins/phoenix-security-review/skills/security-assessment/SKILL.md · 502 lines

How it starts

The opening of the file, as written. The whole thing — 502 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Comprehensive Security Assessment Skill

Purpose

Run comprehensive security assessment covering OWASP Top 10 2025 and ASVS Level 1 requirements. This skill provides automated, full-codebase security analysis with real-time token monitoring, knowledge graph integration, and automated test generation.

On-disk fallback (when MCP unavailable): if run_security_assessment is not reachable, use the bundled checklists at ../security-reviewer/checklists/owasp-asvs.md (OWASP Top 10 ↔ ASVS L1 mapping) and ../security-reviewer/checklists/endpoint-checklist.md (per-endpoint review template), plus the language reference packs at ../security-reviewer/languages/*.md, to drive the workflow with the assistant's built-in tools (Read/Grep/Glob/Bash).

When to Use

User asks to "run a security assessment" or "security audit"
User mentions "OWASP Top 10" or "ASVS"
User requests "security check" or "vulnerability assessment"
User clicks the 🛡️ Security Assessment quick access button
User wants comprehensive security analysis before release

Workflow

1. Parse User Request

Extract:

Scope: Full repo, backend only, frontend only, or specific OWASP categories
Budget: Max cost willing to spend (default: $10.00)
Options: Generate tests, link to graph, check dependencies, report format

2. Invoke Assessment

Use MCP tool run_security_assessment:

{
  "repo_path": "/path/to/repo",
  "max_cost_usd": 10.0,
  "link_to_graph": true,
  "generate_tests": true,
  "check_dependencies": true,
  "stream_progress": true,
  "report_format": "markdown"
}

3. Monitor Progress

Stream real-time updates to user:

Stack detection results
Checks completed (X/24)
Findings discovered
Token usage and cost
Estimated time remaining

4. Present Results

Executive Summary:

Total findings by severity
OWASP Top 10 breakdown
ASVS L1 compliance percentage
Top 5 critical risks

Detailed Findings:

Findings grouped by OWASP category
Each finding includes:
- Vulnerable code snippet
- Attack scenario
- Proof of concept
- Remediation guidance
- Generated test template
- Knowledge graph context (blast radius)

Read the full file on GitHub · 502 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.

1mo ago Changed · +13 lines · +152 tokens per session 82495a75f794
2mo ago First seen · 489 lines · 0 tokens per session scan A c6a5fbc8ca95

Subscribe to this mod's changes

security-assessment is a skill published in the GitHub repository Security-Phoenix-demo/security-skills-claude-code (81 stars, last pushed 5d ago), licensed MIT. It adds 152 tokens to every session and 3,995 once invoked, about $0.0006 per session on Opus 5.5. 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.