0.1.619

Agent Skill

An AI coding agent that already knows Common Lisp still writes wrong rontolisp: it reaches for operators the subset does not have, misses the extensions it does have, and does not know how to run the result on each backend. The agent skill closes that gap. It is this same manual, packaged as a skill: a SKILL.md that carries the delta from Common Lisp plus every page here as a bundled reference, generated on each deploy so it cannot drift from the documentation you are reading.

Install into Claude Code

The skill is published as a plugin. Add the marketplace and install it:

claude plugin marketplace add https://making.github.io/rontolisp/skill/marketplace.json
claude plugin install rontolisp@rontolisp

The same two steps work inside a session as /plugin marketplace add ... and /plugin install rontolisp@rontolisp. Add --scope project to the first command to declare the marketplace in the repository instead of your user settings, so everyone working on the checkout gets the same offer.

Nothing else is needed: the agent consults the skill by itself when a task involves rontolisp -- a .lisp or .asd file, or a request that names the language.

claude plugin update rontolisp@rontolisp     # take a newer version
claude plugin uninstall rontolisp@rontolisp  # remove it
claude plugin list                           # what is installed

Claude Code re-reads the marketplace file from that URL, so a new version becomes available without you changing anything -- see Staying current for how the version moves.

Install without the plugin system

A skill is a directory, and Claude Code reads every skill under ~/.claude/skills (yours) or .claude/skills (the repository's). If you would rather drop it in than register a marketplace:

mkdir -p ~/.claude/skills && \
  curl -sSL https://making.github.io/rontolisp/skill/rontolisp-skill.tar.gz | tar xz -C ~/.claude/skills

Swap the target for .claude/skills to install it into the project instead. Either way you end up with skills/rontolisp/SKILL.md and skills/rontolisp/references/; /skills lists what is loaded, and removing the rontolisp directory uninstalls it. Nothing updates it for you, so this is the path where you check the version yourself.

Other agents and hosts

FileUse
marketplace.jsonthe plugin marketplace, added by URL as above
rontolisp-plugin.zipthe plugin itself, if you install plugins some other way
rontolisp-skill.tar.gzthe bare skill directory, for a skills folder
rontolisp.skillthe same tree as a zip, to upload where a skill is uploaded rather than unpacked
SKILL.mdthe skill body alone, readable in place
rontolisp-full.mdmanual and skill as ONE Markdown file, for a tool that has no skill loader

Staying current

The skill is versioned <release major.minor>.<number of commits that can change it>, so it moves exactly when the documentation or the generator does. As a plugin, claude plugin update rontolisp@rontolisp takes the new one. Installed by hand, compare your copy against the published version and reinstall when they differ:

head -3 ~/.claude/skills/rontolisp/SKILL.md            # version: 0.1.391
curl -sSL https://making.github.io/rontolisp/skill/VERSION

Reinstalling is the same command as installing -- it overwrites in place. version.json carries the same version plus the commit it was built from, if you would rather check it from a script.

What is inside

SKILL.md states the working rule -- Common Lisp knowledge is a prior here, not the truth -- and inlines Unsupported Common Lisp Features, because that is what those priors get wrong most often. Under references/: