normalize-config

name	normalize-config
description	Use when a simple .env-style configuration needs deterministic normalization for comparison or review.

Normalize Config

Normalize a small .env-style config into a stable form that is easy to diff.

Input Format

Use this skill only for line-oriented config entries shaped like:

KEY=value

Comments beginning with # and blank lines are ignored.

Normalization Rules

1. Trim surrounding whitespace from each key and value.
2. Lowercase keys.
3. Preserve value text exactly after trimming; do not lowercase or unquote values.
4. If a key appears more than once after lowercasing, keep the last value.
5. Sort output lines by key in ascending ASCII order.
6. Output only normalized key=value lines.

Stop Conditions

If any non-comment line lacks =, stop and report the first invalid line instead of guessing.

Example

Input:

PORT = 3000
# local override
Name = API
port=8080

Output:

name=API
port=8080