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hackernews-frontpage

Scrape the Hacker News front page (titles, points, comment counts).

58

Quality

68%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

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SecuritybySnyk

Low

Low-risk findings worth noting

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tessl review fix ./browser-skills/hackernews-frontpage/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

73%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A tight, well-structured body for a simple skill: an unambiguous run command, concrete output example, and a coherent internal sequence. The main weaknesses are a section of project meta-commentary that spends tokens without aiding execution and a reference to a bundled test file that is not present in the bundle.

Suggestions

Remove or relocate the 'Why this is the reference skill' section — its Phase 1/SDK/spawn-lifecycle commentary is project context, not skill guidance.

Either include the referenced script.test.ts in the bundle (e.g. under scripts/) or drop the mention, since no bundle files currently exist.

Resolve or define the "$B" placeholder in the Usage command so the example is literally copy-paste executable.

DimensionReasoningScore

Conciseness

The Usage and How-it-works sections are lean, but the 'Why this is the reference skill' section ("Every Phase 1 component (SDK, scoped tokens, three-tier lookup, spawn lifecycle)...", "That's the point.") is internal project meta-commentary that does not help execute the skill and could be trimmed. This matches the anchor for mostly efficient content with some unnecessary explanation, rather than a 4 where only minor instances exist.

3 / 5

Actionability

The Usage section gives a concrete runnable command ("$ $B skill run hackernews-frontpage") with a realistic example of the JSON output, which is mostly executable guidance. It falls short of 5 because "$B" is an unresolved placeholder and the 'How it works' steps describe daemon internals rather than actionable instructions.

4 / 5

Workflow Clarity

This is a simple, single-purpose skill whose single action (run the skill command) is unambiguous, and the four-step 'How it works' sequence is coherent; per the rubric's simple-skill guidance this warrants a 5. The operation is read-only (no destructive or batch risk), so no validation checkpoint is required.

5 / 5

Progressive Disclosure

The body is under 50 lines with well-organized sections (overview, usage, how it works) and no inlined content that belongs in separate files. It does not reach 5 because it cites "the bundled script.test.ts" while no bundle files (references/, scripts/, assets/) actually exist in the skill directory, leaving a dangling, non-navigable reference.

4 / 5

Total

16

/

20

Passed

Description

62%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A concise, specific description that clearly states what the skill does, but it omits any 'when to use' guidance and natural term variants like 'HN' or 'top stories' from the description field itself. Distinctiveness is excellent thanks to the narrow Hacker News niche.

Suggestions

Append a trigger clause to the description, e.g. 'Use when the user asks for Hacker News / HN top or front-page stories, points, or comment counts.'

Fold natural synonyms ("HN", "top stories", "news.ycombinator.com") from the triggers list into the description so trigger matching works from the description alone.

Mention the output shape (JSON with rank, title, URL, points, comments for the top 30 stories) to sharpen the 'what' toward a 5 on specificity.

DimensionReasoningScore

Specificity

The description names a concrete action ("Scrape the Hacker News front page") and three specific extracted fields ("titles, points, comment counts"), matching the anchor for several specific actions with minor gaps. It falls short of a 5 because it covers a single action and omits output form (JSON) and scope (top 30 stories), and exceeds a 3 because the parenthetical fields are more concrete than '1-2 concrete actions'.

4 / 5

Completeness

The 'what' is clear (scrape front page; return titles, points, comment counts) but there is no 'Use when...' or equivalent trigger guidance in the description, which caps completeness at 3 per the judging guidelines. It is not a 2 because the 'what' is specific rather than vague.

3 / 5

Trigger Term Quality

"Hacker News front page" is a natural phrase users would say, but common variations and synonyms — "HN", "top stories", "news.ycombinator.com" — are absent from the description itself (they appear only in the separate triggers frontmatter field). This matches the anchor for relevant keywords with missing common variations.

3 / 5

Distinctiveness Conflict Risk

"Hacker News front page" defines a clear niche with a distinct trigger phrase; it is unlikely to fire for unrelated scraping or news skills. This is a clean match for the minimal-conflict anchor.

5 / 5

Total

15

/

20

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository
garrytan/gstack
Reviewed

Table of Contents

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