Qualcomm AI Engine Direct - Updating Claude skill for new op development

[qti-horodnic]

Summary

Updated the Claude skill for adding new op support based on my findings from manually implementing ~15 previous ops, including corner cases, bugs I've run into before and comments I've gotten on previous prs.

Test plan

Implemented the tan op using this skill only: #19301

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/19302

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⚠️ 11 Awaiting Approval

As of commit 00fa742 with merge base 08b2987 ():

AWAITING APPROVAL - The following workflows need approval before CI can run:

• Build documentation (gh)
• Build Presets (gh)
• Cadence Build & Test (gh)
• Lint (gh)
• periodic (gh)
• pull (gh)
• Test ARM Backend (gh)
• Test CoreML Backend (gh)
• Test QNN Backend (gh)
• Test Vulkan Backend (gh)
• Test XNNPACK Backend (gh)

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[qti-horodnic]

@pytorchbot label "release notes: qualcomm"