---
name: naming
description: Naming conventions for Python, PowerShell, Bash, database tables and columns
applies-to: all
---

# Naming Conventions

## Python

- Functions: `snake_case`
- Classes: `PascalCase`
- Constants: `UPPER_SNAKE_CASE`
- Follow PEP 8 for everything else

## PowerShell

- Variables: `$PascalCase` — e.g., `$TaskName`, `$ServiceStatus`
- Functions/cmdlets: use approved verbs — `Get-`, `Set-`, `New-`, `Remove-`, `Invoke-`
- Do not invent new verb forms; stick to the PowerShell approved verb list

## Bash

- Functions: `lowercase_underscore` — e.g., `get_token`, `check_status`
- All variables: quote them — `"$var"`, not `$var`
- Script names: `lowercase-with-hyphens.sh`

## Database

**Tables:**
- Lowercase plural nouns: `users`, `user_sessions`, `agent_updates`
- Junction/relation tables: `{table_a}_{table_b}` — e.g., `policy_assignments`
- Foreign keys: `{referenced_table_singular}_id` — e.g., `agent_id`, `client_id`, `site_id`

**Columns:**
- Timestamps: `created_at`, `updated_at` (not `created`, `modified`, `timestamp`)
- Booleans: `is_` prefix for state — `is_active`, `is_hidden`; `has_` prefix for possession — `has_alert`
- Status enums: use a `TEXT` column with a CHECK constraint listing valid values, not an integer code
