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 Owl-Listener/designpowers --skill cognitive-accessibilitygit clone --depth 1 https://github.com/Owl-Listener/designpowersWrote 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/owl-listener/designpowers/cognitive-accessibility)<a href="https://agentmods.dev/skills/owl-listener/designpowers/cognitive-accessibility"><img src="https://agentmods.dev/badge/skills/owl-listener/designpowers/cognitive-accessibility.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 | $0.00043 | $0.01087 |
| Opus 5 | $0.00022 | $0.00544 |
| Sonnet 5 | $0.00009 | $0.00217 |
| Haiku 4.5 | $0.00004 | $0.00109 |
Grade A, and why
cognitive-accessibility 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 7d 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 — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cognitive Accessibility
The hardest accessibility barriers to see are cognitive ones. A screen reader user encounters a missing label and knows immediately. A person with a processing difference encounters an interface that demands too much of their working memory and just... leaves. This skill makes cognitive demands visible and manageable.
When to Use
- Designing multi-step processes or forms
- Creating navigation structures or information architecture
- Evaluating whether an interface asks too much of the user
- Designing for contexts of stress, distraction, or time pressure
- Reviewing any interface for cognitive load
Process
Step 1: Assess Cognitive Load
For each screen or flow, evaluate three types of load:
Intrinsic load — complexity inherent to the task
- How many concepts must the user understand simultaneously?
- How many decisions must they make per screen?
- Can the task be simplified without losing essential function?
Extraneous load — complexity added by poor design
- Is information organised logically or scattered?
- Are instructions clear and visible, or must the user remember them?
- Is the interface consistent, or do similar things work differently in different places?
Germane load — effort spent learning the system
- Can the user build a mental model from the interface structure?
- Are patterns consistent so that learning one part teaches the next?
- Does the interface reward exploration or punish mistakes?
Step 2: Reduce Extraneous Load
Extraneous load is design debt. Reduce it:
- Show, do not ask people to remember. If a user needs information from Step 2 in Step 5, display it — do not expect them to recall it
- Progressive disclosure. Show only what is needed now. Reveal complexity as it becomes relevant
- Consistent patterns. Same action, same appearance, same location, every time
- Clear defaults. Sensible pre-selections reduce decisions. Make the safe choice the easy choice
- Chunking. Break long forms into sections of 3-5 related fields. Break long content into scannable sections
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.
- 7d ago First seen · 108 lines · 43 tokens per session scan A c994e0ec2fa2
cognitive-accessibility is a skill published in the GitHub repository Owl-Listener/designpowers (241 stars, last pushed 2mo ago), licensed MIT. It adds 43 tokens to every session and 1,087 once invoked, about $0.0002 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 2026-08-30.
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