Security Scan

What it does

When your agent uses it

• Tasks that involve Security review
• Tasks that involve Web application vulnerabilities

Example prompts

• “security scan”
• “security audit”
• “check for vulnerabilities”
• “/security-scan”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

1. 1Choose Layers
2. 2Execute the Layers
3. 3Rate with Context
4. 4Report

What it can do on your machine

Read from SKILL.md and the folder at commit 2330089. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • dotnet

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Security Scan loads about 1.3k tokens when it runs, and up to ~3.4k if it reads all its reference files. Until then it costs about 134 tokens; SKILL.md has 467 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~134

When it runs · the whole SKILL.md, loaded when a task matches

~1.3k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~3.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from codewithmukesh/dotnet-claude-kit at commit 2330089, republished under its MIT licence (© codewithmukesh). 467 words, ~1,333 tokens.

name

security-scan

description

Deep security scanning for .NET applications across 6 layers: vulnerable packages, secrets detection, OWASP code patterns, auth configuration, CORS policy, and data protection. Produces severity-rated findings with specific remediation steps. Load this skill when: "security scan", "security audit", "check for vulnerabilities", "find secrets", "OWASP", "auth review", "CORS check", "security review", "penetration test prep", "CVE check", "vulnerability scan", "hardcoded password", "data protection", "security posture".

User: /security-scan before we ship

Claude: Running all 6 layers...

| Layer | Status | Findings |
|-------|--------|----------|
| 1. Packages | PASS | 0 CVEs (142 packages incl. transitive) |
| 2. Secrets | PASS | 0 real secrets (2 dev-only values skipped) |
| 3. OWASP Patterns | FAIL | 1 SQL injection |
| 4. Auth Config | WARN | 2 endpoints missing explicit auth attributes |
| 5. CORS | PASS | Explicit origins from configuration |
| 6. Data Protection | WARN | Customer email logged at Information level |

[HIGH] SearchOrders.cs:34 — SQL Injection (A05:2025)
  FromSqlRaw($"...LIKE '%{search}%'") → attacker controls the query.
  Fix: db.Orders.Where(o => EF.Functions.Like(o.Name, $"%{search}%"))

[MEDIUM] OrderEndpoints.cs:18,31 — no [Authorize]/[AllowAnonymous]; behavior
  depends on ambient global policy. Make intent explicit per endpoint.

[LOW] OrderPlacedHandler.cs:22 — PII in logs (A09:2025). Log CustomerId, not email.

Note: static analysis only — this does not replace a penetration test.

© codewithmukesh, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/security-scan of codewithmukesh/dotnet-claude-kit.

• SKILL.md
• references/scan-layers.md

Open the folder on GitHubat commit 2330089

Used in 1 other repository

We found 4 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in codewithmukesh/dotnet-claude-kit, which our catalogue first saw on October 7, 2026.

• Resgrid/Core.forge/skills/security-scan.agents/skills/security-scan+2 more