CAT 028

CAT-028 — HTTP::Client resource leak

Severity: error • Confidence: high • Auto-fix: ❌

Warning

This rule flags real bugs, not just performance issues.

Description

HTTP::Client resource leak — HTTP::Client connections must be closed after use. Use the block form or ensure close is called.

Bad code

client = HTTP::Client.new("example.com")
response = client.get("/")

Performance Impact

Tip

This rule can significantly improve performance in hot code paths.

Benchmark

Note

See bench results at bench/cat-028/