ProjectOpenSea/opensea-skill

Agents & automation
Data & research

Graded C on context cost and craft. 467 tokens of this skill ride in the system prompt of every message, whether or not it fires.

Ranked #34 of 38 on the leaderboard →

Score: 2.40 / 4
Resident: 467 tokens
Footprint: medium
Per activation: 10,304 tokens

Re-grade now →View on GitHub ↗Share the grade Grade another skillLast graded Sep 28, 2026 from HEAD

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Markdown

[![Skill Grader: C](https://seoagent.com/skill-grader/badge/ProjectOpenSea/opensea-skill.svg)](https://seoagent.com/skill-grader/ProjectOpenSea/opensea-skill)

HTML

<a href="https://seoagent.com/skill-grader/ProjectOpenSea/opensea-skill"><img src="https://seoagent.com/skill-grader/badge/ProjectOpenSea/opensea-skill.svg" alt="Skill Grader: C" height="20"></a>

Report card

C overall · 2.40/4

github.com/ProjectOpenSea/opensea-skill@HEAD · 6 skills · 467t resident (medium) · 10,304t per activation · 62,291t bundle

Resident footprint

467t of description text ride in the system prompt of every message across 6 skills (paper's observed per-skill range: 50–280t).

Description honesty

Defensive padding detected: 42 comma-separated trigger keywords; 247 words (a quiet description is ~15–40). Padding is individually rational and collectively ruinous — it dilutes every co-installed skill.

Body size

Largest body is 5,669 words (~10,304t), loaded on every trigger. Corpus median 921, p90 2207.

Progressive disclosure

Body routes to 12 reference file(s); 20 auxiliary .md files are fetched at point of use instead of riding in the body.

Factoring

Scoped to a coherent procedure set.

CLI leverage

Drives a CLI (`opensea`, 50 invocations + 42 shell blocks) — verification and state live in code, not prompt.

C overall (2.40/4). 6 skill(s), 467t resident on every message (medium), 10,304t loaded per activation. Weakest axis: body size (D).

Six deterministic axes, no LLM, same result every run. Tokens are approximated as chars/4. Read the methodology, or see how SEO skills score on task outcomes in the open SEO skill benchmark.