Valgrind

Purpose

Guide agents through Valgrind tools: Memcheck for memory errors, Cachegrind for cache simulation, Callgrind for call graphs, and Massif for heap profiling.

Triggers

• "My program has a memory leak / use-after-free"
• "I can't use ASan — can I use Valgrind instead?"
• "How do I profile cache behaviour without perf?"
• "How do I visualize call graphs with Callgrind?"
• "How do I profile heap allocation patterns?"
• "Valgrind reports errors in third-party code I can't fix"

Workflow

1. Memcheck — memory error detection