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 kwannoel/the-controller --skill the-controller-designgit clone --depth 1 https://github.com/kwannoel/the-controllerWrote 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/kwannoel/the-controller/the-controller-design)<a href="https://agentmods.dev/skills/kwannoel/the-controller/the-controller-design"><img src="https://agentmods.dev/badge/skills/kwannoel/the-controller/the-controller-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/kwannoel/the-controller/the-controller-design"><img src="https://agentmods.dev/badge/skills/kwannoel/the-controller/the-controller-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 | $0.00036 | $0.01166 |
| Opus 5.5 | $0.00014 | $0.00466 |
| Sonnet 5 | $0.00007 | $0.00233 |
| Haiku 4.5 | $0.00004 | $0.00117 |
Grade A, and why
the-controller-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 yesterday.
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 — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Designing User Interfaces
Overview
Feeling-first UI/UX design. Start from how the experience should feel, research how others solved the problem, derive specific visual and interaction decisions, then critique until every choice earns its place.
Design Philosophy
General
Beauty is alignment. Form and function so matched the result feels inevitable.
Elegance is complexity made invisible. The user feels ease, never the hard problem underneath.
Craft is invisible detail. Spacing, transitions, alignment — details nobody notices consciously, but everyone feels. That feeling is trust.
Restraint is courage. Stop before the design starts explaining itself.
Timelessness over trendiness. Proportion and hierarchy don't age. Trends do.
The Controller
Calm control. Orchestrating agents should feel like conducting — powerful, composed, unhurried. The interface makes complex orchestration feel simple, not hide the complexity.
The tool disappears. The best state is when you forget you're using an interface and just work.
Terminal-native, not terminal-cosplay. Dense, keyboard-first, no hand-holding. But what terminals would look like if redesigned today.
Process
You MUST follow these steps in order:
-
Define the feeling — One sentence. What should this feel like to use? This is the north star that every subsequent decision is measured against. The feeling must be emotional, not functional. "Calm awareness" is a feeling. "Situational awareness with quick access" is a product requirement — rewrite it.
-
Research — Find 2-3 apps/tools that solve a similar UX problem. Use web search. For each:
- What it is and what problem it solves
- What works well and why — be specific about the design choices, not just "it looks clean"
- What doesn't work or wouldn't fit The Controller — and what you'd change
- What design lesson you're taking from it into your design
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.
- yesterday First seen · 107 lines · 36 tokens per session scan A de827483cd63
the-controller-design is a skill published in the GitHub repository kwannoel/the-controller (13 stars, last pushed 4mo ago), licensed MIT. It adds 36 tokens to every session and 1,166 once invoked, about $0.0001 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 2026-09-23.
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