r3bl-open-core: Skill for Claude Code

Remove Crate Prefix Skill

Purpose

This skill enforces the "Clean Imports over Inline Absolute Paths (Mandatory)" rule defined in the project's AGENTS.md. It automatically scans code for inline crate:: prefixes (e.g. crate::Type, crate::Size) and refactors the code to use clean imports at the top of the file or scope.

Rules

Do NOT write absolute inline paths like crate::Type or crate::Size inside function signatures or bodies.

✅ Good:

use crate::{Size, Pos};

pub fn render(size: Size) -> Pos { ... }

❌ Bad:

pub fn render(size: crate::Size) -> crate::Pos { ... }

Exceptions

• Declarative Macros (macro_rules!): Do NOT apply this refactor inside declarative macros, and NEVER touch or remove the $crate:: prefix. Modifying $crate:: will result in a syntax error because it turns a built-in macro keyword into an undeclared macro variable.
• Macro invocations often require absolute paths (e.g., crate::key_press!). This rule primarily targets structs, traits, and enums (e.g., crate::ModifierKeysMask).
• Sometimes in generated code or highly isolated scopes, a use crate::{...} block directly inside a function or if block is preferred over a file-level import to minimize scope pollution.

Execution

When invoked:

1. Determine Target Files:
   • If specific files are provided as arguments, target those files.
   • If no arguments are supplied, find all modified staged and unstaged files (e.g., via git diff --name-only and git diff --cached --name-only) and target all of them.
2. Scan the targeted file(s) for instances of inline crate:: usage for types.
3. Group the required imports into a single use crate::{...}; statement.
   • For production code: Place the use statement at or near the top of the file, joining existing file-level imports (even if the crate:: usage is inside an inner module).
   • For test code: The use statement can be added to the closest inner test module where the other test imports are located.
4. Remove the crate:: prefix from the inline usages.
5. Verify the changes compile successfully using ./check.fish --check.