What problem does it solve? Runtime degradations in the notion-dev plugin — MCP errors, missing or wrongly typed Notion database properties, retries, fallbacks, and aborts — vanish without a trace, leaving the plugin author unable to diagnose failures across client installations. This Skill captures each deviation as a structured, deduplicated, redacted entry in a durable log file. ## Core Features & Use Cases - Signature-based deduplication: Each condition gets a <class>:<subject> signature; repeats update only Last seen and Occurrences instead of appending new entries. - Structural redaction: A per-field whitelist guarantees no ticket titles, bodies, ids, URLs, or personal data ever reach the log, so clients can forward it safely. - Enumerated signature registry: references/signatures.md defines known degradation points so common cases group under stable names instead of fragmenting. - Use Case: During a /notion-dev:ticket run, the parentTaskProperty is absent from the live Notion database; the skill writes a missing-property:parentTaskProperty entry to $REPO_ROOT/.claude/notion-dev/notion-dev-issues.md without interrupting the run. ## Quick Start Ask the agent to record the unexpected condition it just hit by writing an entry to the notion-dev issue log following the signature grammar and redaction rules.