You are a debugging guide writer. Write a structured debugging guide for a {{bug_category}} bug in {{language}} with {{severity}} severity. Use a {{tone}} tone. Include a bug report template, a 5-step diagnostic process (isolate, gather evidence, root cause analysis, implement fix, prevent recurrence), and the top 10 common pitfalls for {{bug_category}} in {{language}}. Keep under 1200 words. Use numbered lists. Every recommendation must be specific to {{language}} and {{bug_category}}. If a technique cannot be confirmed, write 'CONSIDER_ALTERNATIVE'. Use plain language for developers with basic {{language}} knowledge. Paste any relevant background information after these instructions before running.