ss-score

ss-score is a skill for Claude Code, Codex from bitjaru/styleseed. It costs 31 tokens per session (3,125 once invoked), scanned A, original, MIT.

A checker that scores a visual artifact from 0 to 100 against its defined design rules and reports evidence and suggested fixes.

In plain words
What is it for?
Use it to scan a registered visual artifact, validate its manifest and source files, and review the resulting quality score and diagnostics.
Why use it?
It combines repeatable rule checks with a quality assessment, helping identify layout or styling problems in a visual implementation.

Skill for Claude CodeCodex

Part of the styleseed plugin — 24 skills shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/bitjaru/styleseed/ss-score
Any agent
npx skills add bitjaru/styleseed --skill ss-score
Clone the repo
git clone --depth 1 https://github.com/bitjaru/styleseed

Made for: Claude Code, Codex.

Or install styleseed, the plugin that ships this one along with the rest of its 24 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ss-score

README.md
[![agentmods](https://agentmods.dev/badge/skills/bitjaru/styleseed/ss-score.svg)](https://agentmods.dev/skills/bitjaru/styleseed/ss-score)
Your own site
<a href="https://agentmods.dev/skills/bitjaru/styleseed/ss-score"><img src="https://agentmods.dev/badge/skills/bitjaru/styleseed/ss-score.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,125 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00031 $0.03125
Opus 5 $0.00015 $0.01563
Sonnet 5 $0.00006 $0.00625
Haiku 4.5 $0.00003 $0.00313

Measured 4d ago against content hash cb2e2e5c8d4b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ss-score scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/evidence-contract.mjs, scripts/evidence-gate.mjs, scripts/styleseed-check.mjs), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

engine/.claude/skills/ss-score/SKILL.md · 208 lines

How it starts

The opening of the file, as written. The whole thing — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Design Score

Registry-first artifact boundary

When .styleseed/project.json and .styleseed/artifacts/index.json exist, resolve the requested artifact ID first, then read only .styleseed/bundles/<artifact-id>.md and .styleseed/manifests/<artifact-id>.json. Never fall back to the global legacy bundle for a registry project. Legacy projects may use .styleseed/effective-rules.md only when no registry exists.

Deterministic check boundary

For the executable contract and stable diagnostics, run the canonical checker:

node <installed-ss-score>/scripts/styleseed-check.mjs scan \
  --project-root . --artifact <artifact-id> --format json
node <installed-ss-score>/scripts/styleseed-check.mjs scan \
  --project-root . --artifact <artifact-id> --format sarif --out .styleseed/evidence/<artifact>/<run>/deterministic.sarif

The checker revalidates the artifact manifest, bundle/output hashes, declared source roots, and project containment before scanning. Contract/path/hash/coverage failures are hard errors. Source detectors are warning-only until their fixture precision is measured and a maintainer promotes them. Stable detector IDs are SS001 hardcoded colors, SS002 arbitrary pixel values, SS003 transition-all, SS004 motion without reduced-motion handling, SS005 focus suppression, and SS006 high-confidence unlabeled icon controls. A deterministic JSON report contains only detectorRevision, inventoryHash, and sorted findings, so it can be attached to the evidence gate without caller-supplied pass claims.

Attach the generated JSON through the same typed gate path as other reports:

node <installed-ss-score>/scripts/evidence-gate.mjs attach \
  --project-root . --artifact <artifact-id> --run <run-id> \
  --gate deterministic \
  --report .styleseed/evidence/<artifact-id>/<run-id>/deterministic.json

/ss-review tells you what's wrong. /ss-score tells you how good it is overall and what to fix first — a single number plus a category breakdown, so you can track UI quality like you track test coverage.

Read the full file on GitHub · 208 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 208 lines · 31 tokens per session scan A cb2e2e5c8d4b

Subscribe to this mod's changes

ss-score is a skill published in the GitHub repository bitjaru/styleseed (939 stars, last pushed yesterday), licensed MIT. It adds 31 tokens to every session and 3,125 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.