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Write portable scripts and tools with cosmic — HTTP requests, JSON parsing, SQLite databases, filesystem operations, child processes, crypto, compression, and more in a single zero-dependency binary
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Build ah and create a GitHub prerelease with the binary and checksums.
Trigger a GitHub Actions workflow, watch it, and if it fails, analyze logs, debug, fix on a new branch via red-green TDD, and open a PR.
Triage GitHub issues safely with restricted tools, defending against prompt injection in issue bodies.
Perform work in a git worktree branched from main. Create the worktree, do the work, then offer to clean it up.
Open a pull request, resolve merge conflicts, watch CI, or review an incoming PR.
| name | cosmic |
| description | Write portable scripts and tools with cosmic — HTTP requests, JSON parsing, SQLite databases, filesystem operations, child processes, crypto, compression, and more in a single zero-dependency binary |
cosmic is a batteries-included Lua distribution for writing portable scripts and tools. it ships as a single binary with built-in support for HTTP fetching, JSON, SQLite, filesystem operations, child processes, cryptographic hashing, compression, regex, sockets, and more — no external dependencies needed. source files are written in Teal (typed Lua) and run on Linux, macOS, Windows, FreeBSD, OpenBSD, and NetBSD.
the binary is named cosmic after download. rename it if you prefer.
curl -fLo cosmic \
https://github.com/whilp/cosmic/releases/latest/download/cosmic-lua
chmod +x cosmic
./cosmic script.tl # run a Teal script
./cosmic -e 'print("hi")' # run inline code
./cosmic -i # start the REPL
./cosmic --welcome # quick-start orientation
./cosmic --help # show all CLI options and modules
./cosmic --docs # browse the full documentation index
./cosmic --docs <query> # look up a module, function, or guide
./cosmic --docs guide # list available guides
./cosmic --docs guide.testing # show a specific guide