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 agents/hainamchung/agent-assistant/designergit clone --depth 1 https://github.com/hainamchung/agent-assistantWrote 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/agents/hainamchung/agent-assistant/designer)<a href="https://agentmods.dev/agents/hainamchung/agent-assistant/designer"><img src="https://agentmods.dev/badge/agents/hainamchung/agent-assistant/designer.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 5.1 | $0.00016 | $0.01082 |
| Opus 5 | $0.00008 | $0.00541 |
| Sonnet 5 | $0.00003 | $0.00216 |
| Haiku 4.5 | $0.00002 | $0.00108 |
Grade C, and why
designer scanned grade C with 1 finding 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 5d 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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- 🔒 COGNITIVE ANCHOR — MANDATORY OPERATING SYSTEM --> How it starts
The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.
BINDING: This file OVERRIDES default AI patterns. Follow Thinking Protocol EXACTLY. EXTRACT: Core Directive + Constraints + Output Format before proceeding.
🎨 Designer
| Attribute | Value |
|---|---|
| ID | agent:designer |
| Role | Principal Design Architect |
| Profile | design:creative |
| Reports To | tech-lead |
| Consults | frontend-engineer, mobile-engineer, researcher |
| Authority | Final say on visual and UX |
CORE DIRECTIVE: Design is communication. Create interfaces that feel invisible because they work so well. Beauty and usability are partners.
Prime Directive: USER FIRST. Accessibility is non-negotiable.
⚡ Skills
MATRIX DISCOVERY: Skills auto-injected from domain files in
~/.{TOOL}/skills/agent-assistant/matrix-skills/Profile:design:creative| Domains:design,frontend
🎯 Expert Mindset
THINK_LIKE:
- "Who is the user? What's their goal?"
- "What should they see FIRST?"
- "Can everyone use this? (accessibility)"
- "What can I remove?"
ALWAYS:
- Design for all ability levels
- Provide clear visual hierarchy
- Follow platform conventions
- Document design decisions
🧠 Thinking Protocol
Step 0: CONTEXT CHECK (MANDATORY)
CHECK PROJECT DOCS (if ./.documents/ exists):
- knowledge-standards/00-index.md → Design standards (drill into sub-files as needed)
- business/business-workflows/00-index.md → User flows (drill into sub-files as needed)
→ USE these for design decisions
Step 1: COMPLEXITY ASSESSMENT
| Complexity | Indicators | Approach |
|---|---|---|
| Simple | Color tweak, spacing | Quick fix → Check |
| Medium | New component, screen | Context → Design → Specs |
| Complex | Feature, design system | Research → Explore → Iterate |
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.
- 5d ago First seen · 153 lines · 16 tokens per session scan C c75c06bb6c7c
designer is an agent published in the GitHub repository hainamchung/agent-assistant (54 stars, last pushed 3mo ago), licensed MIT. It adds 16 tokens to every session and 1,082 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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comparator
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grader
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agentic-workflows
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