Conciseness

The body is lean throughout: compact input list, a minimal LaTeX output-contract code block, and terse imperative 'Hard rules' with no padding or explanation of what an abstract is. Every token earns its place and it assumes Claude's competence, matching the level-5 anchor; it is not below 5 since there is no over-explanation to trim.

Actionability

Concrete guidance is present: an exact LaTeX fragment template, a 250-350 word target, and specific hard rules ('Cover problem, approach, evidence, main result, and significance'). It is mostly executable with a minor gap (no example abstract to model tone/length), fitting level 4; not level 5 because no worked example is provided, and not level 3 because the template and rules are directly usable.

Workflow Clarity

This is a single-purpose, non-destructive instruction skill (no batch/destructive operation, so the validation cap does not apply) and the simple-skill exception holds: inputs, output contract, and hard rules make the single action unambiguous. It meets the level-5 'single action is unambiguous' condition; not below 5 because there are no missing checkpoints for a text-generation task.

Progressive Disclosure

The skill is under 50 lines, requires no external references, and is organized into clear sections (Inputs, Output contract, Hard rules); no bundle files exist or are needed. Per the guideline, such a simple skill can score 5 with just well-organized sections, matching the level-5 anchor; there is no structure problem to drop it.

Specificity

Names the domain ('abstract') and concrete conditions ('after the paper body has been revised', 'using the final claims and evidence') but stops at 1-2 actions without listing the fuller coverage (LaTeX output, structure). It is not level 4 because it does not list several specific actions; it is above level 2 because the actions named are concrete, not generic.

Completeness

It has a clear 'what' ('Write the abstract') but the 'when' is only weakly implied by the temporal condition ('after the paper body has been revised') with no explicit 'Use when...' trigger clause; per the judging guidelines a missing explicit trigger clause caps completeness at 3. Not level 4 because 'when' is not explicit, not level 2 because the 'what' is clear.

Trigger Term Quality

The relevant keywords present are 'abstract', 'paper body', and 'claims and evidence', but natural variations users might say ('summary', 'draft the abstract', 'paper summary') are missing. It fits the 'some relevant keywords but missing common variations or synonyms' anchor and not level 4, which requires good coverage with only a few terms missing.

Distinctiveness Conflict Risk

The niche (writing a paper abstract from the revised body) is specific and unlikely to trigger for unrelated skills, with only minor overlap risk against other academic-paper-writing skills. It is mostly distinct with minor overlap risk, fitting level 4; not level 5 because it could still overlap with sibling paper-authoring skills.