Agent skill
elixir-security-review
Reviews Elixir code for security vulnerabilities including code injection, atom exhaustion, and secret handling. Use when reviewing code handling user input, external data, or sensitive configuration.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/elixir-security-review
SKILL.md
Elixir Security Review
Quick Reference
| Issue Type | Reference |
|---|---|
| Code.eval_string, binary_to_term | references/code-injection.md |
| String.to_atom dangers | references/atom-exhaustion.md |
| Config, environment variables | references/secrets.md |
| ETS visibility, process dictionary | references/process-exposure.md |
Review Checklist
Critical (Block Merge)
- No
Code.eval_string/1on user input - No
:erlang.binary_to_term/1without:safeon untrusted data - No
String.to_atom/1on external input - No hardcoded secrets in source code
Major
- ETS tables use appropriate access controls
- No sensitive data in process dictionary
- No dynamic module creation from user input
- Path traversal prevented in file operations
Configuration
- Secrets loaded from environment
- No secrets in config/*.exs committed to git
- Runtime config used for deployment secrets
Valid Patterns (Do NOT Flag)
- String.to_atom on compile-time constants - Atoms created at compile time are safe
- Code.eval_string in dev/test - May be needed for tooling
- ETS :public tables - Valid when intentionally shared
- binary_to_term with :safe - Explicitly safe option used
Context-Sensitive Rules
| Issue | Flag ONLY IF |
|---|---|
| String.to_atom | Input comes from external source (user, API, file) |
| binary_to_term | Data comes from untrusted source |
| ETS :public | Contains sensitive data |
Before Submitting Findings
Use the issue format: [FILE:LINE] ISSUE_TITLE for each finding.
Load and follow review-verification-protocol before reporting any issue.
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