garbage-collection

# Garbage Collection Skill ## Overview Expert skill for garbage collector design and implementation including various collection algorithms. ## Capabilities - Implement mark-sweep collection - Implement copying/semi-space collectors - Implement generational collection with write barriers - Implement concurrent/incremental marking (tri-color) - Design object header layouts and type info - Implement precise vs conservative root scanning - Design card table and remembered set implementations - Implement finalizers and weak references ## Target Processes - garbage-collector-implementation.js - memory-allocator-design.js - interpreter-implementation.js - bytecode-vm-implementation.js ## Dependencies GC Handbook literature (Jones, Hosking, Moss) ## Usage Guidelines 1. **Algorithm Selection**: Start with simple mark-sweep, evolve to generational as needed 2. **Write Barriers**: Design write barriers early if considering generational/concurrent GC 3. **Root Scanning**: Implement precise root scanning for safety 4. **Pause Times**: Measure pause times and optimize for application requirements 5. **Testing**: Build GC stress tests and allocation-heavy benchmarks ## Output Schema ```json { "type": "object", "properties": { "algorithm": { "type": "string", "enum": ["mark-sweep", "copying", "mark-compact", "generational", "concurrent"] }, "writeBarrier": { "type": "string", "enum": ["none", "card-table", "remembered-set", "snapshot-at-be...