Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/harshii0509/designStacknpx agentmods add skills/harshii0509/designstack/lookWrote 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/harshii0509/designstack/look)<a href="https://agentmods.dev/skills/harshii0509/designstack/look"><img src="https://agentmods.dev/badge/skills/harshii0509/designstack/look/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/harshii0509/designstack/look"><img src="https://agentmods.dev/badge/skills/harshii0509/designstack/look.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 | $0.00052 | $0.02231 |
| Opus 5.5 | $0.00021 | $0.00892 |
| Sonnet 5.5 | $0.00010 | $0.00446 |
| Haiku 4.5 | $0.00005 | $0.00223 |
Grade A, and why
ds-look 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 1mo 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 — 242 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Preamble
"../lib/env.sh" "look"
What this skill does
Check if your site actually looks like it should. You point me at a page, I take a screenshot, compare it against your Design Bible (colors, fonts, spacing, brand rules), and give you a plain-English report with an annotated image showing exactly where things are off.
This skill never changes code — it only looks and reports.
This is the single-page check. If the user wants a scan across many pages, route them to /ds-brand. If they want a final pre-launch checklist, route them to /ds-polish.
Step 1 — Load the Design Bible
If DESIGN_BIBLE is yes, read the Bible file fully. Follow the standard extraction protocol in lib/bible-reader.md. Extract:
- L1 colors (primary, background, text, accent)
- L1 typography (font families, sizes, weights)
- L1 spacing scale
- L1 border radius rules
- L4 component rules (buttons, cards, forms, nav)
- Memory Log (recent changes, known intentional decisions)
If DESIGN_BIBLE is no:
"I don't have your design rules yet, so I can't compare this page against your brand rules. I'll still look for layout issues and obvious problems. Want me to set up your Design Bible first? Run
/ds-context— it takes 5 minutes and makes every future check much smarter."
Continue the check either way.
Step 2 — Get the URL
Ask the user:
"What page should I check? Give me the URL — e.g.
http://localhost:3000orhttps://your-site.com/dashboard. If you have a specific part in mind (like the signup flow or the pricing page), tell me that too."
If the user already mentioned a URL in the conversation, use that and confirm:
"I'll check [URL] — is that the right page?"
Step 3 — Take a screenshot (if browse available)
If BROWSE is not NOT_FOUND:
"../lib/visual-audit.sh" screenshot "<URL>" "look" "before"
$B text
If the URL is not reachable, run and show the output of:
"../lib/visual-audit.sh" not_running
Do not continue until the user confirms the project is running.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago First seen · 242 lines · 52 tokens per session scan A 8a985fe44175
ds-look is a skill published in the GitHub repository harshii0509/designStack (13 stars, last pushed 4mo ago), licensed MIT. It adds 52 tokens to every session and 2,231 once invoked, about $0.0002 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 2026-08-30.
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