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Bast

Pluggable Code Security

Lightweight static analysis that runs in your editor. Find vulnerabilities as you type, not after you deploy. Extensible rules engine for any security policy.

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                            import os
                        
                            def run_command(user_input):
                            
                                ⚠
                                Command injection risk
                            
                            os.system(user_input)
                            
                                ✗
                                B605: shell injection
                            
                            def run_safe(cmd, args):
                            ✓
                        
                            subprocess.run([cmd] + args)
                            ✓

⚡

Real-Time Feedback

See security issues as you type. No waiting for CI builds or scheduled scans. Instant feedback in your editor.

🧩

Pluggable Rules

Write custom rules in YAML or Python. Share rules across teams. Import community rule packs.

🎯

Low False Positives

Context-aware analysis reduces noise. Taint tracking follows data flow. Smart severity scoring.

🚀

Blazing Fast

Written in Rust for maximum performance. Incremental analysis only re-scans changed code.

Write Rules Your Way

Simple YAML syntax for powerful security patterns

id: hardcoded-secret
message: Hardcoded secret detected
severity: HIGH
languages:
  - python
  - javascript
pattern: |
  $VAR = "$SECRET"
metavariable-regex:
  $SECRET: (api_key|secret|password).*
fix: Use environment variables instead

Works Where You Work

Native integrations for your favorite tools

VS Code

IntelliJ

Neovim

GitHub Actions

GitLab CI

CLI

Multi-Language Support

Python

JavaScript

TypeScript

Rust

Java

C/C++

Ruby

PHP

+15 more

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