skill-registry-injection-20k-tokens-per-call

The full skill-registry (~170 skills) is injected as a system reminder with every tool call return, costing approximately 20k context tokens per round-trip. This severely limits multi-file bulk editing sessions and causes context exhaustion mid-task. Large-scope skill edits (300+ sections across 65+ files) must be planned across multiple sessions or delegated to parallel subagents with bounded scopes.