elixir-security-review

Original：🇺🇸 English

Translated

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.

3installs

Sourceexistential-birds/beagle

Added on2026-02-09

NPX Install

npx skill4agent add existential-birds/beagle elixir-security-review

SKILL.md Content

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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/1
```
on user input
No
```
:erlang.binary_to_term/1
```
without
```
:safe
```
on untrusted data
No
```
String.to_atom/1
```
on 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.