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.
npx skills add sdcorejs/sdcorejs-agent --skill sdcorejs-designgit clone --depth 1 https://github.com/sdcorejs/sdcorejs-agentWrote 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.
[](https://agentmods.dev/skills/sdcorejs/sdcorejs-agent/sdcorejs-design)<a href="https://agentmods.dev/skills/sdcorejs/sdcorejs-agent/sdcorejs-design"><img src="https://agentmods.dev/badge/skills/sdcorejs/sdcorejs-agent/sdcorejs-design/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/sdcorejs/sdcorejs-agent/sdcorejs-design"><img src="https://agentmods.dev/badge/skills/sdcorejs/sdcorejs-agent/sdcorejs-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00092 | $0.05454 |
| Opus 5.5 | $0.00037 | $0.02182 |
| Sonnet 5.5 | $0.00018 | $0.01091 |
| Haiku 4.5 | $0.00009 | $0.00545 |
Grade A, and why
sdcorejs-design 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 16d 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.
How it starts
The opening of the file, as written. The whole thing — 505 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Path resolution: Resolve ../../_refs/... relative to this SKILL.md. Resolve another SDCoreJS skill by opening the sibling folder ../<skill-name>/SKILL.md.
Design Track
Shared Protocols
Read ../../_refs/shared/runtime-protocols.md and ../../_refs/shared/artifact-lifecycle.md; load ../../_refs/shared/design-handoff.md for durable handoffs.
Resolve track/profile and artifact values from ../../_refs/shared/system-registry.json, roots from ../../_refs/shared/artifact-paths.mjs, approved spec/plan parents with ../../_refs/shared/approved-artifact.mjs, and ownership with ../../_refs/shared/repository-contract.mjs.
Emit artifact_context for every design artifact and ledger written. Never rebuild a Design path by hand.
Purpose
Create FE handoff artifacts from product intent. The output should let Angular/Next.js executors implement screens without guessing layout, states, copy, interactions, or responsive behavior.
Design does not write production code, replace a spec/plan, mutate an approved artifact, invent behavior outside approved requirements, or create module code.
PNG generation is feasible, but a PNG alone is not a reliable source of truth. For exact FE implementation, always pair PNG previews with editable design artifacts and a written handoff spec.
Before designing UI from PRDs, user stories, acceptance criteria, or rough
feature briefs, read ../../_refs/design/frontend-design.md. Use it to create a
compact visual direction grounded in existing tokens, copy voice, and
self-critique before writing final design specs or wireframes.
For frontend handoff, also read ../../_refs/shared/frontend-architecture.md. Use
repository evidence to produce an implementation-oriented component/data/
interaction map. Design may propose candidate boundaries, but it must not claim
exact code paths, providers, or public exports are confirmed when the target
codebase has not been inspected.
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.
- 16d ago Changed · +2 lines 034ba757c1b5
- 1mo ago Changed · +13 lines · +7 tokens per session 32332d229aa7
- 2mo ago First seen · 490 lines · 85 tokens per session scan A f317e3e021b5
sdcorejs-design is a skill published in the GitHub repository sdcorejs/sdcorejs-agent (2 stars, last pushed 15d ago), licensed MIT. It adds 92 tokens to every session and 5,454 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-08-31.
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