Development skills

Browse reusable Agent Skills, each with a clear purpose and practical guidance.

mps-build-language

Use when authoring or modifying MPS Build Language scripts (`BuildProject` roots) — the declarative DSL that generates Ant `build.xml` to package MPS language plugins, IDEA plugins, plain Java modules, standalone IDE/RCP distributions, module tests, or `run code from solution` tasks. Covers build solution setup, macros, project/external/Java dependencies, MPS module declarations (`BuildMps_Language` / `_Solution` / `_Generator`), groups, layouts, IDEA-plugin declarations, MPS settings, and the workflow language. Trigger terms: `BuildProject`, `BuildMps_*`, `BuildLayout_*`, `jetbrains.mps.build`, `build.mps` solution, `internalBaseDirectory`, `compactBuildScriptFileName`, Ant target generation, `mps_home`, `idea_home`.

1.65k repo starsObserved in 1 repos
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mps-console

Use when running or generating MPS Console code, or when writing `jetbrains.mps.lang.smodel.query` queries anywhere in MPS (intentions, behavior, actions, generator queries, plain BaseLanguage). Covers the console command languages (`jetbrains.mps.console.base` / `ideCommands` / `internalCommands` / `scripts`): `BLCommand` / `BLExpression`, the `#print*` / `#show` result printers, IDE commands (`#make` / `#clean` / `#removeGenSources` / `#reloadClasses` / `#stat` / `#showGenPlan` / `#showBrokenRefs`), `#exec` / `forEach` / `refactor` scripts. Covers the smodel query language: `#nodes` / `#references` / `#models` / `#modules` / `#instances` / `#usages`, the `with`-statement scope wrapper, scopes (`project` / `editable` / `global` / `visible` / `modules` / `models` / `custom`) and query parameters (`scope` / `exact` / `r/o+`). Also how to insert, read, recall, and run console commands with `mps_mcp_insert_console_command_from_json`, `mps_mcp_get_current_editor_root_node(source="console")`, `mps_mcp_get_console_history`, `mps_mcp_recall_console_command`, and `mps_mcp_run_console_command`.

1.65k repo starsObserved in 1 repos
Development
GitHub

mps-ide-plugin

Use when authoring or modifying MPS IDE plugins — code that integrates with the MPS / IntelliJ host IDE shell. Covers ActionDeclaration, ActionGroupDeclaration, ToolDeclaration/TabbedToolDeclaration (dockable tool windows), KeymapChangesDeclaration (shortcuts), PreferencesComponentDeclaration (settings pages), EditorTab+Order (concept editor tabs), InterfaceGroup (bootstrap wrappers around external groups), NonDumbAwareActions, IdeaConfigurationXml, ApplicationPluginDeclaration/ProjectPluginDeclaration/StandalonePluginDescriptor (lifecycle hooks). Uses jetbrains.mps.lang.plugin and jetbrains.mps.lang.plugin.standalone. Trigger terms: action group, tool window, menu item, MainMenu, EditorPopup, NodeActions, ModelActions, ModuleActions, ProjectViewPopupMenu, MPS plugin solution, ActionInstance, ModificationStatement, DataKey, MPSCommonDataKeys, MPSDataKeys, dumb-aware, project.tool<...>, project.preferenceComponent<...>, application plugin<...>, project plugin<...>.

1.65k repo starsObserved in 1 repos
Development
GitHub

mps-lang-core-xml

Use when authoring XML documents as MPS root nodes or building XML-generating generator templates with jetbrains.mps.core.xml — covers XmlFile, XmlDocument, prolog (XML declaration, DOCTYPE, processing instructions, comments), elements, attributes, CDATA, entity references, and macro attachment via the smodelAttribute role for templates that emit XML output.

1.65k repo starsObserved in 1 repos
Development
GitHub

mps-language-aspects-overview

Entry point for authoring or modifying an MPS language — index of all aspects (structure, editor, constraints, behavior, typesystem, intentions, actions, generator, textgen, accessories, generation plans), the recommended authoring order, cross-aspect call patterns, dependency/rebuild rules, and validation flow. Start here when defining a new language or when you do not know which aspect-specific skill applies.

1.65k repo starsObserved in 1 repos
Development
GitHub

mps-language-modularity

Use when designing how multiple MPS languages relate or compose — choosing between language referencing, extension, reuse, and embedding, or deciding where a cross-language dependency should live and how generated code interacts. Covers the 2×2 modularity taxonomy adapted to MPS, a decision procedure, per-kind recipes (references + search scopes; subconcepting + overloaded operations; abstract hooks + adapter languages + separated/interwoven generation; guest + composition languages + type bridges), the annotations escape hatch, and per-kind validation. This is the design tier above the aspect-implementation skills: it picks the strategy, then routes into the relevant mps-aspect-* skills (structure, constraints, typesystem, generator, generation-plan, intentions) and mps-tests. Reach for it before authoring aspects, or whenever one language must see, extend, embed, or adapt another.

1.65k repo starsObserved in 1 repos
Development
GitHub

mps-mcp-workflow

Complete JetBrains MPS workflow guide for DSL projects — models, languages, generators, node JSON blueprints, validation, MPS MCP tool usage, and the index of companion skills. Use whenever working in an MPS project, when AGENTS.md says to load the MPS workflow skill, or when you need to pick the right MPS aspect-specific skill.

1.65k repo starsObserved in 1 repos
Development
GitHub

mps-model-manipulation

Use when writing or editing MPS BaseLanguage code that lives inside a model — behavior methods, typesystem rules, checking rules, generator queries, constraints, intentions, scope/canBe callbacks, dataflow builders — and combines the `smodel`, `collections`, and `closures` language extensions. Covers querying nodes (`.descendants<C>`, `.ancestor<C>`, `.children`, `.parent`, `containingRoot`), filtering sequences (`.where`, `.select`, `.translate`, `.ofConcept<C>`), building closures (`{ it => ... }`, `yield`, recursion), creating and mutating nodes (`new node<C>()`, `add new(C)`, `set new(C)`, `replace with new(C)`, `.detach`, `.copy`), property and link access (`SPropertyAccess`, `SLinkAccess`, `SLinkListAccess`), reference operations (`.reference/C : role/`, `.target`), null-safe node equality (`:eq:` / `:ne:`), smodel/Java type casts (`node:C`, `node as C`, `/`, `downcast`), foreach choice, the `command` / `read action` lock wrappers, and JSON blueprints for every shape the Java parser cannot produce.

1.65k repo starsObserved in 1 repos
Development
GitHub

mps-quotations

Use when writing or debugging MPS quotations and anti-quotations — "node literals" that create SNode trees inline in behavior, typesystem, intentions, generator, and other model code. Covers heavy quotations (`Quotation`, `<...>`), light quotations (`NodeBuilder`, constructor-style for bootstrapping), and the four anti-quotation varieties: child (`%(...)%`), list (`*(...)*`), reference (`^(...)^`), property (`$(...) Development Skills — Page 256 | OpenParable ). Reach for this skill whenever the task involves splicing runtime values into quoted node trees or choosing between heavy and light quotations.

1.65k repo starsObserved in 1 repos
Development
GitHub

streamlit-rebase

Rebase our custom fork of the Streamlit repository onto new upstream Streamlit release

1.65k repo starsObserved in 1 repos
Development
GitHub
). Reach for this skill whenever the task involves splicing runtime values into quoted node trees or choosing between heavy and light quotations.","category":"development","repoStars":1649,"observedRepos":1,"sourceUrl":"https://github.com/JetBrains/MPS/blob/HEAD/.claude/skills/mps-quotations/SKILL.md"},{"id":12385,"slug":"streamlit-rebase","name":"streamlit-rebase","description":"Rebase our custom fork of the Streamlit repository onto new upstream Streamlit release","category":"development","repoStars":1649,"observedRepos":1,"sourceUrl":"https://github.com/whitphx/stlite/blob/HEAD/.claude/skills/rebase-streamlit/SKILL.md"}],"searchEndpoint":"/skill/api/search"}