[RohanDaCoder]

Description

Adds Skript and Skip to languages.yml — both use the .sk extension — plus a disambiguation heuristic in heuristics.yml.

Skript is a scripting language for Minecraft servers (a Paper/Bukkit plugin) that lets server owners modify their servers without writing Java. Skip is a general-purpose language with reactive caching; its compiler and standard library are written in .sk files.

.sk is not currently claimed by any language in languages.yml, so .sk files fall through unclassified today. This addresses the requirements in #6559 (a second .sk language plus a heuristic), supersedes #7659, and closes #6857. Credit to @Camden-png for the original grammar and colour work.

Heuristic

- extensions: ['.sk']
  rules:
  - language: Skript
    pattern: '\{[_a-zA-Z]\w*(?:::[\w*]+)*\}'
  - language: Skip
    pattern: '^(?:module|fun|native|val|var|let)\s'

Skript is matched first on its curly-brace variable syntax ({var}, {list::key}), then Skip on line-leading declaration keywords. Both rules are specific, so a .sk file that matches neither falls through to the classifier rather than being forced into one language.

I checked every sample: each matches its own rule and does not match the other language's rule. script/check-regex-compatibility passes locally with Ruby, Go, and Rust, and the full test/test_heuristics.rb passes on an LF checkout (179 runs, 3079 assertions, 0 failures). GitHub Actions is currently showing action_required for this fork, so CI needs approval before it can run.

#6559 suggested Skip or Skew; this adds Skip. Skew can follow separately.

Checklist:

• I am adding a new language.

  • The extension of the new language is used in hundreds of repositories on GitHub.com.
    • Search results for each extension (counts as of 2026-10-23):
      • .sk, excluding forks: https://github.com/search?type=code&q=NOT+is%3Afork+path%3A*.sk — 93.8k files
      • .sk distribution, excluding the Skip and Skript upstream repositories: https://github.com/search?type=code&q=NOT+is%3Afork+-repo%3Askiplang%2Fskip+-repo%3ASkriptLang%2FSkript+path%3A*.sk — 92.8k files
      • .sk containing Skript's broadcast keyword, excluding Skip's repository: https://github.com/search?type=code&q=NOT+is%3Afork+-repo%3Askiplang%2Fskip+path%3A*.sk+broadcast — 2.4k files
      • .sk containing Skip's module and fun keywords: https://github.com/search?type=code&q=NOT+is%3Afork+path%3A*.sk+module+fun — 2.4k files
  • I have included a real-world usage sample for all extensions added in this PR:
    • Sample source(s):
      • samples/Skript/chat.sk: written for this PR (no upstream source)
      • samples/Skript/teleport.sk: written for this PR (no upstream source)
      • samples/Skip/skipComment.sk: https://github.com/skiplang/skip/blob/b63d2de7ed50a20519ba22b63b0a8a3d95728a65/src/frontend/skipComment.sk
      • samples/Skip/String.sk: https://github.com/skiplang/skip/blob/b63d2de7ed50a20519ba22b63b0a8a3d95728a65/src/runtime/prelude/core/primitives/String.sk
      • samples/Skip/Array.sk: https://github.com/skiplang/skip/blob/b63d2de7ed50a20519ba22b63b0a8a3d95728a65/src/runtime/prelude/core/primitives/Array.sk
    • Sample license(s):
      • chat.sk, teleport.sk: MIT (original work, contributed under Linguist's MIT license)
      • skipComment.sk, String.sk, Array.sk: MIT (skiplang/skip LICENSE)
  • I have included a syntax highlighting grammar: https://github.com/SkriptLang/skript-grammar (MIT, source.skript)
    • Skip has no TextMate grammar; its tm_scope is none.
  • I have added a color
    • Skript:
      • Hex value: #FF9800
      • Rationale: Accent colour used by the official documentation and the Skript logo.
    • Skip:
      • Hex value: #9b278f
      • Rationale: Chosen to be visually distinct from Skript's orange; no official brand asset verified.
  • I have updated the heuristics to distinguish my language from others using the same extension.

• I am adding new or changing current functionality

  • I have added or updated the tests for the new or changed functionality.
    • test/test_heuristics.rb: test_sk_by_heuristics covers every .sk sample for both languages.

[Camden-png]

Wow! Thank you, Rohan!

[lildude]

This PR will not be reviewed until you have correctly filled in our PR template. It's there for a reason and needs to be completed accordingly.

[RohanDaCoder]

---

@lildude I've updated this PR to fully comply with the CONTRIBUTING.md template and addressed the requirements raised in #6559.

What changed since the initial review:

• Samples: Replaced the bundled Skript examples (which were essentially tutorials) with custom, MIT-licensed Skript scripts to avoid copyright ambiguity. Added real-world MIT-licensed Skip samples (from the official compiler source) so both languages meet the ≥2 sample requirement for shared extensions.
• Heuristics: Added test_sk_by_heuristics and verified script/check-regex-compatibility passes cleanly.
• Template: Filled out the checklist with exact search metrics, proper sample licensing, and language IDs generated via script/update-ids.

The Invalid label is still attached from my initial template mistake. Could you remove it so this can enter the normal review queue?

(Note: CI is currently action_required pending workflow approval for new contributors).

Thanks for the guidance and for your time reviewing!

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