Fory Release
apache/fory
Prepare an Apache Fory release candidate from a clean release branch, including the version bump, RC tag, JVM staging, ASF source artifacts, SVN upload, and vote email.
Guidance for creating polyglot source files that compile and run correctly as both Rust and C/C++ programs.
No licenceAuto-check passed
Install Polyglot Rust C
$ npx skills add lazyFrogLOL/Harness_Engineering --skill polyglot-rust-c -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install lazyFrogLOL/Harness_Engineering polyglot-rust-c --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/polyglot-rust-c .claude/skills/polyglot-rust-c && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "polyglot-rust-c" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/polyglot-rust-c into .claude/skills/polyglot-rust-c/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "polyglot-rust-c", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/polyglot-rust-cType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add lazyFrogLOL/Harness_Engineering --skill polyglot-rust-c -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install lazyFrogLOL/Harness_Engineering polyglot-rust-c --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/polyglot-rust-c .agents/skills/polyglot-rust-c && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "polyglot-rust-c" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/polyglot-rust-c into .agents/skills/polyglot-rust-c/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "polyglot-rust-c", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add lazyFrogLOL/Harness_Engineering --skill polyglot-rust-c -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install lazyFrogLOL/Harness_Engineering polyglot-rust-c --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/polyglot-rust-c .cursor/skills/polyglot-rust-c && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "polyglot-rust-c" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/polyglot-rust-c into .cursor/skills/polyglot-rust-c/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "polyglot-rust-c", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/lazyFrogLOL/Harness_Engineering.git --path skills/polyglot-rust-c--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add lazyFrogLOL/Harness_Engineering --skill polyglot-rust-c -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install lazyFrogLOL/Harness_Engineering polyglot-rust-c --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/polyglot-rust-c .gemini/skills/polyglot-rust-c && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "polyglot-rust-c" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/polyglot-rust-c into .gemini/skills/polyglot-rust-c/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "polyglot-rust-c", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install lazyFrogLOL/Harness_Engineering polyglot-rust-cInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add lazyFrogLOL/Harness_Engineering --skill polyglot-rust-c -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/polyglot-rust-c .github/skills/polyglot-rust-c && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "polyglot-rust-c" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/polyglot-rust-c into .github/skills/polyglot-rust-c/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "polyglot-rust-c", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add lazyFrogLOL/Harness_Engineering --skill polyglot-rust-c -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install lazyFrogLOL/Harness_Engineering polyglot-rust-c --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/polyglot-rust-c .opencode/skills/polyglot-rust-c && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "polyglot-rust-c" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/polyglot-rust-c into .opencode/skills/polyglot-rust-c/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "polyglot-rust-c", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
polyglot-rust-c- GitHub stars
- 128
- Token cost
- ~1.6k tokens
- SKILL.md length
- 662 words
- Files
- 1
- Skills in repo
- 32
- Repo updated
- First seen
- Licence
- None found
At a glance
Guidance for creating polyglot source files that compile and run correctly as both Rust and C/C++ programs.
- Works in 11 steps: Set Up Environment → Write Minimal Skeleton → Compile and Test → …
- SKILL.md covers Overview, Critical Approach: Iterative…, Polyglot Mechanisms and Implementation Workflow, plus 4 more sections
- Calls rustc
What it does
Polyglot Rust C is an agent skill from lazyFrogLOL/Harness_Engineering. Guidance for creating polyglot source files that compile and run correctly as both Rust and C/C++ programs. This skill should be used when asked to create code that is valid in multiple programming languages simultaneously, particularly Rust and C/C++ polyglots.
Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with Rust and C++.
Example prompts
- “/polyglot-rust-c”
Workflow steps
11 steps, taken from the step headings in SKILL.md.
- Set Up Environment
- Write Minimal Skeleton
- Compile and Test
- Iterate on Errors
- Add Actual Logic
- Overthinking Without Testing
- Forgetting to Use Tools
- Not Tracking Attempts
- Ignoring Compiler Error Messages
- Overcomplicating the Structure
- Function Definition Differences
What it can do on your machine
Read from SKILL.md and the folder at commit cae3b25. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
rustc
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Polyglot Rust C loads about 1.6k tokens when it runs. Until then it costs about 70 tokens; SKILL.md has 662 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 662 words (~1,561 tokens).
“This skill provides guidance for creating polyglot source files—single files that compile and execute correctly as programs in multiple languages. The focus is on Rust and C/C++ polyglots, which leverage comment syntax differences and preprocessor directives to hide language-specific code…”
- name
- polyglot-rust-c
Files
Just SKILL.md in skills/polyglot-rust-c of lazyFrogLOL/Harness_Engineering.
Open the folder on GitHubat commit cae3b25
Compare with similar skills
Polyglot Rust C next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Polyglot Rust C this skilllazyFrogLOL/Harness_Engineering | 128 | — | ~1.6k | Automated safety check: Pass | None | |
| Fory Releaseapache/fory | 4.6k | — | ~2.9k | Automated safety check: Pass | Apache-2.0 | |
| SeekDB Code Reviewoceanbase/seekdb | 3.1k | — | ~2.1k | Automated safety check: Pass | Apache-2.0 | |
| Fory Version Bumpapache/fory | 4.6k | — | ~1.1k | Automated safety check: Pass | Apache-2.0 | |
| Add Grammarafnanenayet/diffsitter | 2.4k | — | ~1.9k | Automated safety check: Notes | MIT | |
| Fory Performance Optimizationapache/fory | 4.6k | — | ~2.2k | Automated safety check: Pass | Apache-2.0 |
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Related
Questions about Polyglot Rust C
What does Polyglot Rust C do?
Guidance for creating polyglot source files that compile and run correctly as both Rust and C/C++ programs. Polyglot Rust C is an agent skill from lazyFrogLOL/Harness_Engineering. Guidance for creating polyglot source files that compile and run correctly as both Rust and C/C++ programs.
How do I install Polyglot Rust C in Claude Code?
Run `npx skills add lazyFrogLOL/Harness_Engineering --skill polyglot-rust-c -a claude-code`. Or copy the skill folder (skills/polyglot-rust-c in lazyFrogLOL/Harness_Engineering) into .claude/skills/polyglot-rust-c in your project. Claude Code loads it when a task matches its description.
How do I install Polyglot Rust C in Codex?
Run `npx skills add lazyFrogLOL/Harness_Engineering --skill polyglot-rust-c -a codex`. Or copy the skill folder (skills/polyglot-rust-c in lazyFrogLOL/Harness_Engineering) into .agents/skills/polyglot-rust-c in your project. Codex loads it when a task matches its description.
Can I use Polyglot Rust C in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add lazyFrogLOL/Harness_Engineering --skill polyglot-rust-c -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/polyglot-rust-c, .gemini/skills/polyglot-rust-c, .github/skills/polyglot-rust-c and .opencode/skills/polyglot-rust-c in your project.
What does Polyglot Rust C need to run?
Going by SKILL.md and its folder, Polyglot Rust C needs the command-line tools its instructions call (rustc).
Does Polyglot Rust C access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Polyglot Rust C safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Polyglot Rust C use?
No licence was found for Polyglot Rust C or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Polyglot Rust C use?
About 1.6k tokens (SKILL.md is roughly 6.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Polyglot Rust C?
Skills that share tags, products or a category with Polyglot Rust C: Fory Release (apache/fory, 4.6k stars), SeekDB Code Review (oceanbase/seekdb, 3.1k stars), Fory Version Bump (apache/fory, 4.6k stars) and Add Grammar (afnanenayet/diffsitter, 2.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Polyglot Rust C?
lazyFrogLOL (a GitHub user) maintains it in lazyFrogLOL/Harness_Engineering, which has 128 GitHub stars. The repository holds 32 skills in this directory. The repository was last updated on May 18, 2026.
Source: lazyFrogLOL/Harness_Engineering on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.