About Rulec
Rulec is an MCP server published by i2y in the Search category: a little language for business rules — fees, taxes, discounts, eligibility, one step of a process. rulec proves there are no gaps, overlaps or dead rows, returns the exact input when there are, and only then generates dependency-free code in 12 languages. Built for AI agents.
The repository has 2 stars and 0 forks, with the last commit 3 days ago. Recent commit activity is the strongest signal that reported issues will get attention.
Install
From source
git clone https://github.com/i2y/rulecThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
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Releases
v0.22.1rulec v0.22.1 · 1 Oct 2026Nothing that passed in 0.22.0 fails in 0.22.1, and no answer changes. What moves is the buf module `gen` writes beside the Connect service. Fixed A contract that imports a file from a BSR module now builds.** A rule whose `.proto` contract…
v0.22.0rulec v0.22.0 · 1 Oct 2026Rules that passed and now fail | Code | What it stops | |---|---| | E002 | An alias in parentheses that is not a name. `六十(60)` passed with the parentheses dropped, so the value had no alias at all. | | E032 | A rule that imports an enum…
v0.21.2rulec v0.21.2 · 28 Sep 2026Nothing that passed in 0.21.1 fails in 0.21.2, and no answer changes. Only the Japanese wording moves. Changed The Japanese output uses the words the Japanese pages use.** Under `--lang ja`, the diagnostics, `rulec explain`, the CLI help…
v0.21.1rulec v0.21.1 · 27 Sep 2026Nothing that passed in 0.21.0 fails in 0.21.1, and no answer changes. This release is about how rulec gets onto a machine. Added Homebrew**, on macOS and on Linux: `brew install i2y/tap/rulec`. The formula installs this release's archive…
v0.21.0rulec v0.21.0 · 26 Sep 2026Rules that passed and now fail Each of these was read as something other than what was written, or passed the check and then failed in the generated code. A rule that now fails with one of them was being misread. | Code | What it stops |…