Auto-generated edge case simulator and bug finder for Python. Detects crashes, edge cases, and unsafe inputs before production.
EdgeCheck runs your functions under randomized and structured inputs to uncover hidden crashes, unsafe edge cases, and missed guards. It integrates directly into VS Code so you see squiggles, quick fixes, and hover details without leaving the editor.
✨ Features
🔍 Detect runtime edge cases (division by zero, out-of-range indexing, bad inputs).
🟢 Inline diagnostics in the editor (red/yellow squiggles).
💡 Quick fixes (auto-insert guards for zero denominators, buffer checks, etc.).
🖱️ Status bar menu for one-click scan of file/workspace.
📊 Workspace scanning with include/exclude globs.
📝 SARIF output for CI/CD integration and GitHub code scanning.
⚙️ Configurable analysis budget, trials, and max findings.
📖 Hover docs show error type, hint, params, repro inputs.
🚀 Usage
Install the extension (edgecheck-*.vsix) in VS Code.
Open a Python project.
Watch squiggles appear as you type or save.
Click the EdgeCheck ▶︎ Menu in the status bar for options:
Scan current file
Scan workspace
Toggle info diagnostics
Open last SARIF
⚙️ Settings
Setting
Default
Description
edgecheck.pythonPath
""
Path to Python interpreter (falls back to python3).
def divide(a: int, b: int):
return a / b # 🚨 EdgeCheck: Possible division by zero
def bad_bytes(b: bytes):
return b[100] # 🚨 EdgeCheck: Index may be out of range
