Claude Code Skills for Security (2026)

Security professionals need tools that accelerate assessment workflows without sacrificing rigor Claude Code skills provide targeted capabilities for vulnerability analysis, penetration testing, compliance checking, and security documentation. Security Report Generation

The pdf skill produces professional security reports from your findings. Use it to generate penetration test reports, vulnerability assessments, and compliance documentation.

Generate a penetration test report from markdown notes
"Create a PDF report from these vulnerability findings with executive summary"

This skill handles formatting, page breaks, and table of contents automatically. Security teams use it to deliver client-ready documentation without manual formatting work.

In practice, a typical pentest report benefits from a two-pass approach. First, document your findings in plain markdown during the engagement. raw notes, reproduction steps, CVSS scores. Then invoke the pdf skill with a prompt like:

"Convert these findings into a professional penetration test report. Include an executive summary in plain language, a technical findings section with reproduction steps, and a prioritized remediation roadmap. Format critical findings with red severity badges."

The skill handles the visual presentation so you spend time on security analysis, not InDesign. For clients requiring CVSS scoring tables or OWASP categorization, include that data in your source notes and instruct the skill to preserve the table structure.

docx: Technical Security Documentation

The docx skill creates Word documents for formal security specifications. Use it for security architecture documents, incident response plans, and risk assessments.

Generate a security architecture document
"Create a technical specification for the zero-trust network implementation"

The skill maintains consistent formatting and can convert markdown to professionally styled Word documents.

Security architects use this skill heavily when producing deliverables that clients must edit and route through internal approval workflows. PDF is read-only; Word documents allow stakeholders to add comments, track changes, and collaborate. The skill preserves heading hierarchy, code blocks with monospace formatting, and table alignment. all the elements that break when engineers paste raw markdown into Word manually.

For incident response plan templates, structure your source content with numbered runbooks, decision trees written as nested lists, and contact matrices as markdown tables. The docx skill renders these accurately and maintains the logical hierarchy your IR team needs under pressure.

tdd: Secure Development Workflows

The tdd skill enforces test-driven development, which naturally produces more secure code. By writing tests before implementation, you identify edge cases and security boundaries early.

Write security-focused tests for authentication
"Write tests for a login function that validates input, handles rate limiting, and prevents SQL injection"

Security engineers use this skill to build security test suites that verify input validation, authentication logic, and authorization checks.

The connection between TDD and security is underappreciated. When you write a test first, you are forced to specify exactly what the function must not do. which is precisely the mindset of threat modeling. Consider a password reset flow. Before writing any implementation code, the tdd skill can generate a test suite covering:

Tests generated by the tdd skill for a password reset endpoint
def test_reset_token_is_single_use():
 """Token should be invalidated immediately after first use"""
 pass
def test_reset_token_expires_in_15_minutes():
 """Tokens older than 900 seconds must be rejected"""
 pass
def test_reset_does_not_reveal_account_existence():
 """Response must be identical whether email exists or not"""
 pass
def test_reset_rate_limited_to_3_attempts_per_hour():
 """Fourth attempt within 60 minutes must return 429"""
 pass
def test_old_password_invalidated_on_reset():
 """Previous password must fail after reset completes"""
 pass

Each test encodes a security requirement. Failing tests are security bugs. This transforms abstract security requirements into verifiable, executable specifications. which is far more actionable than a bullet list in a security policy document.

supermemory: Security Knowledge Base

Supermemory acts as your security knowledge repository. It indexes CVE databases, security policies, and past assessment findings.

Query your security knowledge
"Find all previous findings related to SQL injection in our codebase"

This skill connects with tools like Obsidian and Notion, enabling security teams to maintain searchable knowledge bases of vulnerabilities, remediation steps, and lessons learned.

Over time, this skill becomes the most valuable asset in a security engineer’s toolbox. The initial setup involves indexing your existing documentation. past pentest reports, security runbooks, CVE advisories relevant to your tech stack, internal postmortem write-ups. Once indexed, querying becomes fast and precise.

Practical supermemory workflows for security professionals:

  • Between engagements: Before starting a new assessment, query previous findings against the same client or technology stack. “What authentication issues did we find in Node.js Express apps last year?” surfaces patterns without re-reading archived reports.
  • During triage: When a CVE drops, query the knowledge base to identify which internal systems match the affected component versions.
  • Onboarding: New team members can query organizational security standards, past decisions, and lessons learned without interrupting senior staff.

The skill is particularly powerful when combined with the pdf skill at assessment close-out. The supermemory query results give you the historical comparison context, and the pdf skill formats it into the “trend analysis” section of the final report.

xlsx: Vulnerability Tracking and Metrics

The xlsx skill generates spreadsheets for tracking vulnerabilities, severity ratings, and remediation progress.

Create a vulnerability tracking dashboard
"Generate a spreadsheet tracking CVEs with severity scores, affected systems, and remediation status"

Security teams use this for compliance reporting, risk metrics, and maintaining audit trails of security findings.

Vulnerability management at scale requires structured data. The xlsx skill can generate multi-tab workbooks where each tab serves a distinct purpose: a master findings register, a risk-scored prioritization view, a remediation status tracker, and an executive metrics summary. Specify the structure in your prompt:

"Create a vulnerability tracking workbook with four tabs:
1. All Findings. columns: CVE ID, Description, CVSS Score, Affected Systems, Discovery Date, Owner, Status
2. Critical and High Priority. filtered view, sorted by CVSS descending
3. Remediation Progress. same data with completion percentage and target dates
4. Executive Summary. counts by severity, SLA compliance rate, aging chart placeholder"

This structure supports both operational tracking and compliance reporting from a single source of truth. Security managers can feed the executive summary tab into board reporting without reformatting, while engineers work from the detailed findings register.

Code Review Skills for Security

Security-focused code review requires identifying vulnerable patterns, checking for common weaknesses, and suggesting secure alternatives. Claude Code skills help automate parts of this process.

Request security-focused code analysis
"Analyze this authentication module for common vulnerabilities like hardcoded credentials, weak hashing, and session management issues"

The combination of tdd for secure development and supermemory for referencing past vulnerabilities creates a comprehensive security workflow.

Effective security code review with Claude Code goes beyond surface-level scanning. You can direct it to analyze specific vulnerability classes in depth. For example, when reviewing a web application’s data access layer:

Targeted injection vulnerability review
"Review this database query module for SQL injection, second-order injection, and ORM-level vulnerabilities.
For each finding, show the vulnerable line, explain the attack vector, and provide a secure rewrite."

The output is immediately actionable: the vulnerable pattern, why it is exploitable, and a drop-in fix. Compare this to traditional SAST tool output, which flags the line without explaining the security boundary that was violated. The contextual explanation is what helps developers internalize the lesson and avoid repeating the pattern.

For reviewing authentication implementations, focus the analysis on the OWASP Authentication Cheat Sheet controls. For authorization, check for insecure direct object references, missing function-level access controls, and privilege escalation paths. Being specific about the vulnerability class produces higher-quality results than broad “check for security issues” prompts.

Penetration Testing Workflows

Penetration testers benefit from combining multiple skills:

  1. Use pdf to generate scoping documents and rules of engagement
  2. Apply xlsx to track findings during assessments
  3. Use supermemory to reference previous penetration tests and known vulnerability patterns
  4. Generate final reports with docx or pdf
Document engagement scope
"Create a penetration test scoping document with defined targets, testing methodology, and timeline"

A more detailed view of how these skills map to each pentest phase:

Phase Primary Skill What It Produces
Pre-engagement pdf Scoping document, rules of engagement, NDA template
Reconnaissance supermemory Historical findings, known tech stack issues
Vulnerability analysis tdd Test cases validating security controls
Exploitation xlsx Real-time findings tracker during active testing
Post-exploitation supermemory Lateral movement technique reference
Reporting pdf / docx Client deliverable with executive summary
Remediation validation tdd Re-test scripts verifying each fix

The key discipline is maintaining a running findings log in xlsx format throughout the active testing phase. When you discover something notable, log it immediately with reproduction steps. This prevents the rushed documentation sprint at engagement close that leads to incomplete finding descriptions.

For web application assessments, structure your xlsx tracker with columns for OWASP category, CVSS vector string, authentication required (yes/no), evidence screenshot reference, and remediation difficulty rating. That remediation difficulty column becomes the basis for your prioritization recommendations in the final report.

Compliance and Audit Documentation

Security compliance requires meticulous documentation. The pdf and docx skills generate audit-ready documentation for SOC 2, ISO 27001, PCI-DSS, and other frameworks.

Generate compliance evidence documentation
"Create a compliance mapping document showing controls for SOC 2 Type II requirements"

The xlsx skill tracks control effectiveness, audit findings, and remediation timelines across compliance programs.

Compliance documentation benefits from a template-driven approach. Start by building a controls matrix in your notes. each control requirement mapped to the technical or administrative control that satisfies it, with evidence references. Then use the pdf or docx skill to render this matrix into audit-ready format.

For SOC 2 Type II engagements, auditors want to see both the control design and evidence of operational effectiveness over the audit period. The xlsx skill can generate the evidence tracker that your team populates with dates, screenshots, and configuration exports throughout the audit window. At close-out, the pdf skill turns the completed tracker into the evidence summary document.

PCI-DSS audits involve similar patterns but at a more granular level. individual requirement numbers, sub-requirements, and compensating controls. The xlsx skill handles this granularity well when you provide the requirement structure upfront and ask it to generate one row per sub-requirement.

Practical Example: Vulnerability Assessment

Here is a typical workflow for conducting a vulnerability assessment using Claude Code skills:

1. Initial reconnaissance: Document scope with /pdf
2. Vulnerability scanning: Track findings in /xlsx
3. Exploitation testing: Reference techniques via /supermemory
4. Remediation verification: Use /tdd to verify fixes
5. Reporting: Generate final report with /pdf or /docx

Each skill handles a specific phase, reducing context switching and maintaining consistency across the assessment lifecycle.

To make this concrete, consider a mid-sized web application assessment. Day one begins with the pdf skill generating the scope confirmation document sent to the client for sign-off. Once signed, the xlsx skill creates the findings tracker with the agreed-upon severity taxonomy. During active testing on days two and three, every finding goes into the tracker immediately with CVSS score and reproduction steps.

On day four, the supermemory skill pulls up previous assessments of similar Node.js/React stacks to check whether any patterns were missed. The tdd skill generates automated re-test scripts for the five highest-severity findings so that remediation verification can happen quickly without manually reproducing each vulnerability.

The final report on day five takes approximately ninety minutes: export the xlsx findings to structured markdown, run the pdf skill with the executive summary instructions, and review the output. The alternative. manual report writing from scratch. typically takes a full day for the same engagement size.

Choosing Skills for Your Security Practice

Consider your primary activities when selecting skills:

  • Penetration testing: Focus on pdf, docx, xlsx, supermemory
  • Secure code review: Use tdd, supermemory
  • Compliance auditing: Prioritize pdf, docx, xlsx
  • Incident response: Use supermemory for playbook access

The sequencing matters as much as the selection. Security professionals who install supermemory first and spend two weeks indexing their existing knowledge base before starting a new engagement consistently get more value from all the other skills, because the historical context enriches every other output. The pdf and xlsx skills are immediately useful from day one but deliver diminishing returns at scale. Supermemory compounds. its value increases with every document indexed.

Start with the skills that address your most frequent tasks. Security professionals often find that report generation skills provide immediate time savings, while knowledge management skills deliver long-term value as your security database grows.

Summary

Claude Code skills enhance security workflows through targeted automation. Use /pdf or /docx for professional security reports, /xlsx for vulnerability tracking, /tdd for secure development practices, and /supermemory to build a searchable security knowledge base. These tools integrate into existing security processes without requiring wholesale workflow changes.

The most effective security practitioners treat these skills as force multipliers on their domain expertise, not replacements for it. The skills handle formatting, retrieval, and boilerplate generation. The security engineer directs the assessment strategy, evaluates findings in context, and makes the judgment calls that no automated system can substitute for. That division of labor is where the productivity gain lives.

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