JIT Compilation

376

a5c-ai

Expert skill for just-in-time compilation including profiling, tiered compilation, and deoptimization

return-stack

30

SimHacker

Where you've been is where you can go back to.

prototype

30

SimHacker

Objects clone from prototypes, not instances from classes

accelint-ts-performance

6

gohypergiant

Systematic JavaScript/TypeScript performance audit and optimization using V8 profiling and runtime patterns. Use when (1) Users say 'optimize performance', 'audit performance', 'this is slow', 'reduce allocations', 'improve speed', 'check performance', (2) Analyzing code for performance anti-patterns (O(n²) complexity, excessive allocations, I/O blocking, template literal waste), (3) Optimizing functions regardless of current usage context - utilities, formatters, parsers are often called in hot paths even when they appear simple, (4) Fixing V8 deoptimization (monomorphic/polymorphic issues, inline caching). Audits ALL code for anti-patterns and reports findings with expected gains. Covers loops, caching, batching, memory locality, algorithmic complexity fixes with ❌/✅ patterns.