What problem does it solve? Teams using the Che harness accumulate decision events in a JSONL log file, but manually reading raw JSONL lines is slow and error-prone. This Skill provides a structured, read-only query layer over decisions.log.jsonl so users can inspect, filter, summarize, and export decision history without parsing JSON by hand. ## Core Features & Use Cases - Summary Mode: Groups decision events by type, newest first, in a human-readable English bullet list (default when the user asks to "show decisions"). - Filter Mode: Narrows entries by spec_id, event type, date range, or keyword grep across data fields. - Export & Tail Modes: Exports results to CSV/TSV via a centralized output path helper, or returns the last N entries. - Use Case: A user asks "what happened to SPEC-API-HEALTH-1?" and the Skill runs filter mode with --spec SPEC-API-HEALTH-1 against the canonical decisions file resolved via the che CLI. ## Quick Start Ask the assistant to show the decision history for the current worktree, optionally filtered by a spec ID, event type, or date range.