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apple-silicon

Use when tuning or profiling native code on Apple M-series Macs: unified memory, 16 KiB pages, Accelerate and Metal for matrix work, xctrace and leaks, Rosetta 2, or sysctl hardware queries.

.devin/skills/apple-silicon/SKILL.md

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Last checked
Nov 4, 2026

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Repository last updated
Sep 28, 2026
License
Apache-2.0

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# Apple Silicon

## Contract

| Field | Bound contract |
|---|---|
| Trigger | Code runs on an M-series Mac and needs to be checked for page-size assumptions, moved onto Accelerate or Metal for matrix work, profiled with Instruments or the command-line memory tools, or diagnosed for Rosetta 2 translation. |
| Authority | Read-only: reads the host through `sysctl`, `arch`, `lipo`, `file`, `xctrace`, `vmmap`, `heap`, `leaks`, and `sample`, and writes traces only under the output path the user names; rollback is deleting those trace files. No remote mutation. |
| Side effect | Trace and sample files in the named output directory. Profiling attaches to the target process. |
| Done | The report names the chip and its features from `sysctl`, states whether the binary runs native or translated, lists every page-size assumption found in the code with its fix, and points each hotspot at the Accelerate, Metal, or threading change that addresses it. |

## Inputs

- The binary or source under review, and how it is launched.