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 agentmods add rules/phuoctrung-ppt/ai-sdlc-workflow/009-design-gategit clone --depth 1 https://github.com/phuoctrung-ppt/ai-sdlc-workflowWrote 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/rules/phuoctrung-ppt/ai-sdlc-workflow/009-design-gate)<a href="https://agentmods.dev/rules/phuoctrung-ppt/ai-sdlc-workflow/009-design-gate"><img src="https://agentmods.dev/badge/rules/phuoctrung-ppt/ai-sdlc-workflow/009-design-gate.svg" alt="Measured on agentmods" 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 | $0.00311 | $0.00311 |
| Opus 5 | $0.00156 | $0.00156 |
| Sonnet 5 | $0.00062 | $0.00062 |
| Haiku 4.5 | $0.00031 | $0.00031 |
Grade A, and why
009-design-gate 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.
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.
What it actually says
DESIGN-GATE (UI work)
Any task that creates or changes visible UI requires, before implementation:
- Design spec:
docs/design/YYYY-MM-DD-{feature}.md - Sketch or visual reference: ≥1 file under
docs/design/sketches/{feature}/ - Track declared:
marketing|product|split - Hard-rules section pasted from:
- product →
.cursor/skills/saas-product-ui/references/hard-rules-product.md - marketing →
.cursor/skills/taste-design/hard-rules-marketing.md
- product →
- Domain pack when known:
knowledge-hub-saas|sme-marketing-vn| other saas-product-ui references
Missing any of 1–2 → STOP and dispatch @designer-worker (use visual pipeline: .cursor/skills/taste-design/ui-visual-pipeline.md).
Plan requirements
Plans with UI scope MUST include a designer-worker task before frontend-worker UI tasks, with acceptance = spec path + sketch path exist.
Forbidden
- Frontend inventing palette/layout without spec
- Mixing marketing hero patterns inside product app shell
- Skipping sketches because “simple page”
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.
- 4d ago First seen · 30 lines · 311 tokens per session scan A 29b7a16985d2
009-design-gate is a cursor rule published in the GitHub repository phuoctrung-ppt/ai-sdlc-workflow (2 stars, last pushed 18d ago), licensed MIT. It adds 311 tokens to every session, about $0.0016 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 2026-08-31.
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