Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

.github/workflows/ci.yml (1)

56-67: ⚠️ Potential issue | 🔴 Critical

matrix.os is undefined in the lint_code job — cache keys will be empty.

The lint_code job does not define a matrix strategy (it runs directly on ubuntu-latest at line 42), so ${{ matrix.os }} evaluates to an empty string. This will result in empty or invalid cache keys, causing cache misses or unexpected behavior.

Either revert to ${{ runner.os }} for this job, or add a matrix strategy if multi-OS linting is intended.

🔧 Proposed fix to revert to runner.os for this job

       - name: Install xmake
         uses: xmake-io/github-action-setup-xmake@fadadea1162ec75ce1541d5bb68226fb147c221e
         with:
           xmake-version: latest
           actions-cache-folder: ".xmake-cache"
-          actions-cache-key: ${{ matrix.os }}
+          actions-cache-key: ${{ runner.os }}
           build-cache: true
-          build-cache-key: ${{ matrix.os }}
+          build-cache-key: ${{ runner.os }}

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In @.github/workflows/ci.yml around lines 56 - 67, The cache keys in the
lint_code job use the undefined variable matrix.os (seen in actions-cache-key
and build-cache-key), causing empty keys; update those keys to use runner.os
instead (or alternatively add a matrix strategy for the job if you intended
multi-OS linting). Locate the lint_code job where Install xmake uses
actions-cache-key: ${{ matrix.os }} and build-cache-key: ${{ matrix.os }}, and
replace those occurrences with ${{ runner.os }} (or add a matrix with an os axis
and use matrix.os consistently).