Conciseness

The body is lean — table-driven Quick Reference, terse numbered steps, one code block, no explanation of concepts Claude already knows — matching 'efficient; minor instances of over-explanation that could be trimmed'. Not a 5 because the --source semantics appear twice in full (Overview 'Supported sources' list plus Step 2 'Notes') and the 'When to Use' section restates the frontmatter description.

Actionability

The search step is copy-paste ready (the script's actual argparse flags match the example exactly: --query/--source/--months/--max-results/--output), the naming scheme and output format list are concrete. Not a 5 because Step 6 ('English Review: concise, factual, non-formulaic') and the Output Format section lack a concrete template/example, and the referenced output example file 'example/daily paper example.md' does not exist in the bundle.

Workflow Clarity

A clearly sequenced 7-step workflow with an explicit narrowing rule ('Top 10 -> Top 3 -> Top 1'), a minimum rule guarding against skipping stages, and a required output trace — matching 'clear sequence with most checkpoints present'. Not a 5 because there are no explicit validation/verification steps (e.g., confirm papers fall within --months window, verify links resolve, confirm output files written) and no error-recovery guidance.

Progressive Disclosure

Scored against the actual bundle: SKILL.md is a concise overview, the Quick Reference table maps each task to a real file (references/keywords.md, quality-criteria.md, writing-style.md all exist), and Additional Resources signals each reference one level deep. Not a 5 because the listed reference 'example/daily paper example.md' does not exist in the bundle — a dangling navigation pointer — and the script path in Step 2 uses an inconsistent form ('skills/daily-paper-generator/scripts/...') versus the Quick Reference's 'scripts/arxiv_search.py'.

Specificity

Quotes several concrete actions — 'generate daily paper digests', 'supports both arXiv and bioRxiv (or either one)', 'produces structured Chinese/English summaries for selected papers' — matching the anchor 'lists several specific actions; minor gaps in coverage'. Not a 5 because it omits parts of the pipeline (search, scoring/selection, output location), and not a 3 because more than 1-2 concrete actions are named.

Completeness

Both 'what' ('produces structured Chinese/English summaries for selected papers' with named sources) and 'when' ('Use when the user asks to generate daily paper digests on a general topic') are explicitly and concretely stated, matching the 5 anchor with a concrete trigger phrase. The 4 anchor ('when could be more explicit or specific') fits worse because the when-clause names the exact triggering request and scope.

Trigger Term Quality

Natural terms users would say are present: 'daily paper digests', 'arXiv', 'bioRxiv', 'summaries', 'papers'. Falls short of the 5 anchor ('comprehensive coverage including synonyms and variations') because common phrasings like 'paper roundup', 'literature digest', 'recent papers', or 'research digest' are missing; exceeds the 3 anchor since the core source names are exactly what users would mention.

Distinctiveness Conflict Risk

A clear niche (paper digests from arXiv/bioRxiv with bilingual output) with distinct source-specific triggers, matching 'mostly distinct; minor overlap risk with closely related skills'. Not 5 because it could overlap with generic literature-search or summarization skills triggered by 'summarize papers'; not 3 because the arXiv/bioRxiv + digest combination is well differentiated.