Core OTK engine: Rust CLI proxy, output filters, token tracking, and analytics. This skill provides the otk binary and all 12 filter strategies. AUTO-TRIGGER: Used automatically via PreToolUse hook - no manual invocation needed. Performance: <10ms startup, <5MB binary, <5MB memory. Written in Rust like RTK.
How to install otk-core?
letzdoo/claude-marketplace/otk-core
$npx -y skills add letzdoo/claude-marketplace --skill otk-coreInstalls into the current project.
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Run `npx skills use "https://github.com/letzdoo/claude-marketplace" --skill "letzdoo/claude-marketplace/otk-core"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/letzdoo/claude-marketplace" that are relevant to the current task. Run `npx skills add "https://github.com/letzdoo/claude-marketplace"` and select the relevant skills, then follow their instructions.
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