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platform-cost-benchmarks

CPM/CPA/CPC/ROAS benchmarks; cross-platform budget split; 2025-2026 figures for Google/Meta/TikTok/LinkedIn/YouTube.

Quality

79%

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SecuritybySnyk

Passed

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tessl review fix ./skills/platform-cost-benchmarks/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

82%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, data-dense reference whose tables and decision tree are immediately actionable for budget and CPA questions. The main defects are the promotional footer consuming context and the absence of an explicit usage sequence connecting user questions to the specific tables.

Suggestions

Remove or relocate the 'About this skill' promotional footer; it consumes context without aiding task execution.

Add a short 'How to use' sequence: identify the user's industry/AOV/budget → look up the matching CPA row and budget-split scenario → adjust using the decision tree and the new-account 30-50% note.

Reconcile the description's 'CPC' mention with the body (add CPC figures or drop it), and note the data's vintage so stale figures are recognizable.

DimensionReasoningScore

Conciseness

Dense tables with almost no filler — every functional token earns its place — but the ~10-line promotional 'About this skill' footer ('Want this skill (and 40+ more) running on autopilot... Try Synter') is padding competing for context, keeping it below the level-5 'every token earns its place' anchor.

4 / 5

Actionability

Exact CPM/ROAS/CPA ranges, percentage budget splits per business scenario, and a dollar-threshold decision tree with creative counts ('<$1K/mo → ONE platform... 3-5 creatives') give copy-ready answers for the common budget/CPA/platform questions; per the rubric's instruction-only note, absence of code is not penalized when guidance is this concrete.

5 / 5

Workflow Clarity

The intro states the skill's purpose ('Use these benchmarks to advise on budget planning, CPA targets, and platform selection') and 'Reading the benchmarks' supplies interpretive guardrails, but there is no explicit sequence mapping a user's question to the right table (industry/AOV → CPA table, budget → decision tree), so it falls between the 4 and 5 anchors.

4 / 5

Progressive Disclosure

Clean single-level structure with clear section headers (CPM, ROAS, CPA, budget split, decision tree, interpretation) and no nested references, but at ~75 inline lines it exceeds the under-50-line simple-skill threshold for a 5, and the promotional footer is non-functional content that belongs elsewhere.

4 / 5

Total

17

/

20

Passed

Description

66%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.

The description is concrete and domain-specific with good natural keywords, but it omits any explicit 'when to use this' trigger guidance, which caps completeness at 3. Adding a 'Use when...' clause with user-facing phrasings would lift it substantially.

Suggestions

Add an explicit trigger clause, e.g. 'Use when the user asks about ad costs, CPA targets, ROAS expectations, or how to split budget across Google/Meta/TikTok/LinkedIn/YouTube.'

Include natural synonyms users actually say — 'ad costs', 'paid media', 'advertising benchmarks', 'CPL' — to broaden trigger coverage.

Either add CPC benchmark data to the body or drop 'CPC' from the description so the promise matches the content.

DimensionReasoningScore

Specificity

Quotes concrete deliverables — 'CPM/CPA/CPC/ROAS benchmarks', 'cross-platform budget split', '2025-2026 figures for Google/Meta/TikTok/LinkedIn/YouTube' — but uses no action verbs and coverage is terse rather than comprehensive, so it sits below the level-5 anchor.

4 / 5

Completeness

The 'what' is clear (benchmarks, budget splits, dated platform figures) but there is no 'Use when...' clause or equivalent explicit trigger guidance, which the rubric caps at 3; it is not a 4 because 'when' is entirely absent rather than merely implicit.

3 / 5

Trigger Term Quality

Natural paid-media keywords users would say are present (CPM, CPA, ROAS, budget split, platform names), matching 'good keyword coverage', but common phrasings like 'ad costs', 'paid social', or 'advertising benchmarks' are missing, keeping it below 5.

4 / 5

Distinctiveness Conflict Risk

The metric acronyms, named platforms, and date range carve out a specific niche with minimal conflict risk, though 'cross-platform budget split' could overlap with general budgeting or media-buying skills, so it is not a clear 5.

4 / 5

Total

15

/

20

Passed

Validation

100%

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

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository

Synter-Media-AI/free-skills

Path

skills/platform-cost-benchmarks/SKILL.md

Reviewed

Table of Contents

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