Lists multiple concrete actions: 'Record a single development decision', 'markdown file with YAML frontmatter', 'Collects context, rationale, and code references interactively'. These are specific, actionable capabilities.

Describes what the skill does but completely lacks a 'Use when...' clause or any explicit trigger guidance. Per rubric guidelines, missing explicit trigger guidance should cap completeness at 2, and this has no trigger guidance at all.

Contains some relevant terms like 'development decision', 'markdown', 'YAML frontmatter', 'rationale', but misses common variations users might say like 'ADR', 'architecture decision record', 'document decision', or 'why did we choose'.

Somewhat specific to development decisions and markdown files, but 'development decision' and 'markdown file' could overlap with documentation or note-taking skills. The YAML frontmatter detail helps distinguish it somewhat.

The skill is lean and efficient, providing only necessary information. It assumes Claude's competence with bash, markdown, and YAML without explaining basic concepts. Every section serves a clear purpose.

Provides fully executable bash commands with concrete examples, specific flag usage, and copy-paste ready scripts. The printf piping pattern and escape sequence guidance are particularly actionable.

Clear 8-step sequence with explicit checkpoints (prerequisites check, ID assignment, file creation, index regeneration). Includes conditional logic for namespaced projects and superseded decisions with proper status updates.

Well-organized with clear sections. References external scripts appropriately without deep nesting. The skill is self-contained at ~100 lines while pointing to shared scripts for reusable functionality.