<!-- swain-model-hint: sonnet, effort: low — default for task management; see per-section overrides below -- Execution Tracking <!-- session-check: SPEC-121 -- Before proceeding with any state-changing operation, check for an active session: If the JSON output has other than , inform the operator: "No active session — start one with ?" Proceed if they dismiss. Abstraction layer for agent execution tracking. Other skills (e.g., swain-design) express intent using abstract terms; this skill translates that intent into concrete CLI commands. Before first use: Read references/tk-cheatsheet.md for…