sapiom-js: Skill for Claude Code

.claude/skills/establishing-studio-design-clarity/SKILL.md

establishing-studio-design-clarity is a skill for Claude Code from sapiom/sapiom-js. It costs 96 tokens per session (1,054 once invoked), scanned A, original, MIT.

A set of instructions for starting changes to the Agent Studio or harness user interface in the sapiom-js repository. It explains how to find the intended design and classify the work before implementation.

In plain words
What is it for?
It is for new or restyled screens and components, redesign requests, hotfixes, and experiments in the listed Agent Studio and harness packages.
Why use it?
It reduces the risk of building a visual change without a clear design reference or product direction.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions CLAUDE.md.

This is sapiom/sapiom-js's own configuration. It tells Claude Code how to work on sapiom-js itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything sapiom-js configures →

Reuse

Borrowing it

Nothing to install: this file belongs to sapiom/sapiom-js. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/sapiom/sapiom-js/main/.claude/skills/establishing-studio-design-clarity/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/sapiom/sapiom-js

Made for: Claude Code.

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 establishing-studio-design-clarity

README.md
[![agentmods](https://agentmods.dev/badge/skills/sapiom/sapiom-js/establishing-studio-design-clarity.svg)](https://agentmods.dev/skills/sapiom/sapiom-js/establishing-studio-design-clarity)
Your own site
<a href="https://agentmods.dev/skills/sapiom/sapiom-js/establishing-studio-design-clarity"><img src="https://agentmods.dev/badge/skills/sapiom/sapiom-js/establishing-studio-design-clarity.svg" alt="Measured on agentmods" height="20"></a>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,054 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 12
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 5.1 $0.00096 $0.01054
Opus 5 $0.00048 $0.00527
Sonnet 5 $0.00019 $0.00211
Haiku 4.5 $0.00010 $0.00105

Measured 8d ago against content hash 5870054cd324, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

establishing-studio-design-clarity 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 8d ago.

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.

.claude/skills/establishing-studio-design-clarity/SKILL.md · 60 lines

How it starts

The opening of the file, as written. The whole thing — 60 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Establishing Studio design clarity

Overview

Before you change Agent Studio / harness UI, establish what you're building from. Same rule as its authoring sibling: search first; then — only if you can't find it — ask before you build. Never ask before searching; never invent a visual or product direction in a vacuum. This skill is deliberately thin — it encodes where the Studio's design lives and the ask-default, not how to search.

The Studio's design source is @sapiom/design-system, resolved through the harness build seam (the branded package when installed, else the committed ds-neutral token mirror — see web/vite.config.ts). Its hygiene rule already exists: harness CLAUDE.md #6 — never redefine a design-system token; read values with var(). A local snapshot of token values is drift the moment the source moves.

The intake — run it before you implement

1. Classify the change: design work (new/restyled surface, "make it better/redesign") → full · hotfix → light · experiment → lightest.

2. Find what you're building from — search before you ask, in order:

  • The ask — the ticket/PR for a design link, screenshot, or named reference.
  • Existing patterns — grep packages/harness/web/src (and packages/harness-desktop/src/renderer) for the same surface; a sibling component usually solved it. Match its anatomy.
  • The tokens — the design-system seam: @sapiom/design-system or packages/harness/web/src/styles/ds-neutral/tokens.css (the committed mirror). Read via var(); do not redefine or re-snapshot values.

3. Verdict — and the ask-rule:

  • Found a clear design or an existing surface to match → proceed; conform per harness CLAUDE.md #6 (tokens via var(), no local redefinition). Surface only the one real judgment call, after.
  • Design work, and after searching no clear design or intentstop and ask 1–2 targeted questions before building. Not proceed-on-a-default-and-notify. If the ask is a genuinely new, unspecified design, capture it as a written design doc first (so it isn't consumed verbally). On an unattended/automated run (no human to answer), post the question on the ticket/PR and stop — asking is not permission to build; if something must ship, build the smallest precedent-anchored version and label it as needing design sign-off.
  • Hotfix or experiment with minor ambiguity → proceed with a precedent-anchored default; flag what you assumed.

Read the full file on GitHub · 60 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. 8d ago First seen · 60 lines · 96 tokens per session scan A 5870054cd324

Subscribe to this mod's changes

establishing-studio-design-clarity is a skill published in the GitHub repository sapiom/sapiom-js (19 stars, last pushed today), licensed MIT. It adds 96 tokens to every session and 1,054 once invoked, about $0.0005 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.

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