Use RTK (Rust Token Killer)

When the rtk command is available in the environment, use it to wrap terminal commands. RTK is a high-performance CLI proxy that filters and summarizes command output before it reaches the LLM context, reducing token consumption by 60–90% with no change to workflow or results.

Activation Criteria

Activate this skill whenever:

• The rtk command is available (check with which rtk or rtk --version).
• You are about to run a command whose output could be long, repetitive, or boilerplate-heavy.
• The task involves git operations, running tests, linting, building, reading files, searching files, inspecting dependencies, or inspecting logs.

Do not use RTK for:

• Commands whose full raw output is intentionally needed by the user (e.g., interactive terminal programs, user-facing output scripts).
• Commands that have no RTK equivalent and where passing to rtk bypass would add no value.
• Shell constructs that RTK cannot rewrite: subshell substitutions ($(...)) and file redirects. Run these unchanged.

Decision Rule: Before Running Any Command