What problem does it solve? Long-running or research-heavy tasks often lose important decisions, evidence, and progress when context windows fill up or sessions end. This Skill persists plans, verified findings, and chronological progress logs as workspace files so work can be resumed, audited, or handed off without losing state. ## Core Features & Use Cases - Durable Task Plans: Creates and maintains task_plan.md with objectives, scope, milestones, decisions, and completion criteria, keeping at most one milestone in progress. - Evidence and Progress Tracking: Records verified facts in findings.md and chronological work logs in progress.md, separating facts from hypotheses and preserving an audit trail. - Handoff and Resumption: Detects existing planning files before writing, supports multi-writer ownership rules, and leaves concise final handoffs with validation results. - Use Case: During a multi-session codebase migration, an agent records each verified finding and completed milestone in workspace files, so a new session or a different agent can resume exactly where the work stopped. ## Quick Start Use the planning-with-files skill to organize this complex task with persistent planning files in the workspace.