What problem does it solve? When a radorch pipeline execution fails, agent output is invalid, or manual intervention is required, there is no persistent record of what went wrong. This Skill creates and maintains a structured, append-only Markdown error log so every failure is captured with context for later diagnosis and recovery. ## Core Features & Use Cases - Structured Error Entries: Appends entries with timestamp, pipeline event, action, severity, phase, and task index using a fixed table-and-section template. - Severity Classification: Classifies failures as critical, high, medium, or low using a defined criteria guide. - Append-Only Log Management: Creates the error log from a bundled template on first failure, tracks entry_count in frontmatter, and never modifies existing entries. - Use Case: When the radorch pipeline signal envelope returns ok: false, the orchestrator invokes this Skill to record the raw JSON output, root cause, and workaround in {PROJECT}-ERROR-LOG.md. ## Quick Start Log the current pipeline failure, including its raw JSON envelope and severity, as a new entry in the project error log.