Individual skill

porting-discover

Analyze a codebase before starting a Metal 4 port. Produces a discovery report with platform readiness, graphics backend analysis, feature coverage matrix, and trace-grounded findings. Use before any porting work begins.

game-porting-skills/skills/porting-discover/SKILL.md

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Last checked: Nov 5, 2026

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Repository stars (not skill ratings): 220
Repository last updated: Jun 8, 2026
License: Apache-2.0

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reference/codebase-analysis.mddoc · 11,841 bytes
reference/gptk-and-traces.mddoc · 7,852 bytes

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You are preparing to port a game or engine to Apple platforms with Metal 4. Before writing any porting code, you must understand the target codebase thoroughly and gather any available reference artifacts.

## Pre-flight Check

Locate the agent's **artifact directory** at `<project-root>/.porting/` (defined in `porting-methodology`). All artifacts live there.

**Check if a discovery report already exists** (`discovery-report.md` in the artifact directory).
- If it exists, tell the user: "A discovery report already exists. Do you want to re-run discovery (this will overwrite the existing report) or use the existing report and proceed to `/porting-plan-goal`?"
- Wait for the user's response before continuing.
- If the user chooses to use the existing report, stop here.

**Announce:** "Running codebase discovery for Apple platform porting."

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