utk

# UTK Tool-Hook Compression Use this skill when installing, operating, or recovering Universal Token Killer (UTK) for GitHub Copilot tool-hook mediation. UTK is hook-first. Do not expose mediation as a public CLI or VS Code extension. It observes shell and non-shell tool calls when the Copilot hook event includes enough input/output to mediate safely, persists raw artifacts under `.utk/`, infers schemas, routes by schema history, and returns compact references. The local `detok` MCP helper is only for LLMLingua-2 text rewriting. ## References - `references/copilot-hooks.md`: hook event handling and pass-through rules. - `references/configuration.md`: `.utk/config.toml` serializer and routing settings. - `references/artifact-recovery.md`: raw output, compact serialization, schema, and route artifact locations. - `references/schema-route-summaries.md`: schema routing and constrained fallback summary.