[Bug]: YamlSnakeYamlFormatHandler creates new Yaml instance on every serialize call

[Splatcrafter]

AI REVIEWED

Module: cli
File: cli/format/YamlSnakeYamlFormatHandler.java
Severity: Medium

Summary

Unlike all Jackson-based handlers which reuse static mapper instances, the SnakeYAML handler creates a new Yaml instance on every serialize() and serializePretty() call. This causes unnecessary allocation overhead.

Suggested Fix

Cache Yaml instances as fields:

private final Yaml compactYaml = new Yaml(this.compactOptions);
private final Yaml prettyYaml = new Yaml(this.prettyOptions);