dbg

Debug programs and profile performance through a persistent CLI session. Triggers on: "debug this", "set a breakpoint", "run under debugger", "launch debugger", "debug a target", "why is this crashing", "step through", "fix this bug", "find the bug", "track down this issue", "investigate this crash", "attach to pid", "post-mortem", "replay a session", "this is too slow", "make this faster", "profile this", "find the bottleneck", "why is this slow", "where is it spending time", "find the memory leak", "check for memory errors", "show the disassembly", "JIT disassembly", "what instructions", "is it vectorized", "check codegen", "show assembly", "SIMD", "bounds checks", "jitdasm", "diff two runs", "regression hunt", "GPU", "CUDA", "kernel", "training is slow", "optimize GPU", "roofline", "occupancy", "memory bound", "compute bound", "kernel fusion". Also use when you would otherwise guess at runtime state, add print statements, or rewrite code without runtime evidence.