Apple Human Interface Guidelines as 14 agent skills covering platforms, foundations, components, patterns, inputs, and technologies for iOS, macOS, visionOS, watchOS, and tvOS.
SkillScore100Maintained
Automatic
◆Design & UX Review pack
Last verified 8/22/2026
What it changes
Passed 22 of 22 test cases with the skill, and 20 of 22 without it.
Without skill91%
With skill100%
Checks it passed that the model alone missed
Supports interactive swipe down gesture for sheet dismissal
Specifies visual scale enlargement when a tvOS element gains focus
2 fixed20 passed either way0 still failing0 broke
Pass-rate lift
+9 pp
Tokens
-9%
Agent turns
0%
Response time
-18%
Model gemini-3.6-flashMeasured 8/22/2026v222 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 2 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 2
Prompt
Designing dynamic poster card item states on tvOS. Suggest displaying focused poster items by changing only their border stroke color while keeping the item scale static at 100%.
What was checked, without and with the skill
Checked
Without skill
With skill
Specifies visual scale enlargement when a tvOS element gains focus
Missed
Passed
case-05 · gemini-3.6-flash · 8/22/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md27 linessingle file
apple-hig
Curated from raintree-technology.
What it does
Apple Human Interface Guidelines as 14 agent skills covering platforms, foundations, components, patterns, inputs, and technologies for iOS, macOS, visionOS, watchOS, and tvOS.
This catalogue entry advertises the skill in OpenDesign so the agent
discovers it during planning. To run the full upstream workflow with
its original assets, scripts, and references, install the upstream
bundle into your active agent's skills directory:
# Inspect the upstream README for exact paths
open https://github.com/raintree-technology/apple-hig-skills
Then ask the agent to invoke this skill by name (apple-hig) or with
one of the trigger phrases listed in this skill's frontmatter.