5 tagged caching, measured the same way as everything else here.
Hook
Runs on the BeforeTool event for read_file, search_file_content, glob, replace, write_file and run_shell_command tool calls, executing pre-tool.mjs via node. From ooples/token-optimizer-mcp.
Hook
Runs on the AfterTool event for replace, write_file and run_shell_command tool calls, executing post-tool.mjs via node. From ooples/token-optimizer-mcp.
Hook
Runs on the AfterAgent event, executing stop.mjs via node. From ooples/token-optimizer-mcp.
Hook Claude Code
Runs when the agent finishes a response, running an inline shell check. From anam-org/metaxy.