Lists multiple specific concrete actions: creating/editing notes with wikilinks, callouts, embeds, frontmatter; building/debugging .base files with formulas, filters, views; plugin development; Web Clipper JSON templates; vault structure; daily notes; CLI usage.

Clearly answers both 'what' (working with Obsidian vaults, .base files, plugins, Web Clipper, notes) and 'when' with explicit trigger guidance ('Trigger for:', 'Also trigger when', 'Do NOT trigger for'). The 'Use this skill whenever' and detailed trigger clauses make selection criteria unambiguous.

Excellent coverage of natural trigger terms including 'Obsidian', 'wikilinks', 'callouts', 'embeds', 'frontmatter', '.base files', 'hot-reload', 'Web Clipper', 'daily notes', 'obsidian CLI', 'foldable callout syntax', 'base formula', 'clipper template', and even implicit triggers like '.base YAML errors'. Also includes negative triggers to reduce false matches.

Highly distinctive with explicit negative boundaries ('Do NOT trigger for Logseq, Notion, Dataview plugin queries, generic markdown processing scripts, or general-purpose Chrome extensions') and a clear niche focused exclusively on Obsidian. The description even addresses edge cases where users might describe Obsidian problems without naming Obsidian.

The skill is comprehensive but includes some content Claude already knows (standard markdown syntax mentions, explaining what tags are, what properties mean). The Markdown section especially could be tighter — e.g., the complete example note is helpful but the surrounding explanations of basic concepts like frontmatter and inline tags add tokens without much value. However, the Bases and CLI sections are quite efficient with their table/code-block format.

The skill provides concrete, copy-paste ready syntax examples throughout — wikilink syntax, .base YAML schemas, CLI commands, filter expressions, formula examples with correct/incorrect patterns, and Web Clipper JSON output format. The YAML schema for bases is particularly well-structured with executable examples, and the CLI section provides real command patterns.

Each domain has a clearly sequenced workflow. The Bases workflow includes explicit validation steps (step 5: validate YAML, check property references, common issues listed; step 6: test in Obsidian with error recovery guidance). The Web Clipper workflow has 6 numbered steps with verification rules and explicit fallback instructions ('ask for another URL'). The Markdown workflow includes a verify step. The plugin dev workflow shows a reload→check errors→verify visually sequence.

Excellent structure with a top-level domain table pointing to reference files, inline essentials kept concise, and clear one-level-deep references throughout (e.g., 'See references/bases-functions.md for complete reference', 'See references/clipper-variables.md'). The skill serves as a navigable overview without burying content in nested references. Official docs links are provided as fallbacks.