JetBrains/MPS

Analyze an MPS language by name — discover concepts, properties, references, children, aspects (editor/constraints/behavior), metadata, and answer type questions (is A a subtype of B, common…

JetBrains/MPS

Add, update, or delete MPS nodes using JSON blueprints — covers the unified blueprint format, staged construction for large subtrees, validation, and reference repair.

JetBrains/MPS

Open an MPS project in a running or freshly started MPS instance when MCP tools fail because no project is open (welcome screen), close an open project with mpsmcpcloseproject, or create a new empty…

JetBrains/MPS

Complete JetBrains MPS workflow guide for DSL projects — models, languages, generators, node JSON blueprints, type queries, validation, MPS MCP tool usage, and the index of companion skills.

JetBrains/MPS

Structured MPS bugfix workflow driven by a YouTrack issue ID — preflight tool checks, version/branch derivation, parallel-agent problem analysis, solution design, branch creation, implementation…

JetBrains/MPS

Define concepts, interface concepts, enumerations, and constrained data types in an MPS language's structure aspect.

JetBrains/MPS

A skill your agent uses when bundling a new plain Java/Kotlin plugin into MPS distribution archives, debugging packaging/layout issues in build/mps.xml, tracing where per-plugin artefacts end up, or…

JetBrains/MPS

A skill your agent uses when authoring or modifying MPS IDE plugins — code that integrates with the MPS / IntelliJ host IDE shell.

JetBrains/MPS

A skill your agent uses when working with TeamCity CI/CD or when user provides a TeamCity build URL.

JetBrains/MPS

A skill your agent uses whenever the user asks to commit changes, write or fix a commit message, amend or rename a commit, or do a workflow that includes committing in the IntelliJ repository.

JetBrains/MPS

Re-runnable measurement loop for agent-driven JetBrains MPS work over mpsmcp tools — baseline headless worker runs on fixed scenarios, server call log + transcripts, hotspot ranking, remedy…

JetBrains/MPS

Debugging techniques and tools for IntelliJ development. An agent skill from JetBrains/MPS.

JetBrains/MPS

Guidelines for using the IntelliJ Registry API. An agent skill from JetBrains/MPS.

JetBrains/MPS

Wire MPS module and model dependencies, used languages, used devkits, extended languages, runtime solutions, accessory models, and language/dependency versions.

JetBrains/MPS

A skill your agent uses when defining or editing MPS node factories (the "actions" aspect) — NodeFactories roots, per-concept NodeFactory setup functions that initialize a freshly created node and…

JetBrains/MPS

A skill your agent uses when defining or editing MPS ConceptBehavior — per-concept methods (non-virtual / virtual / abstract / static / virtual static), constructors, virtual dispatch (MRO), super…

JetBrains/MPS

A skill your agent uses when defining or editing MPS language constraints — property validators / setters / getters, referent search scopes (imperative or inherited via ScopeProvider.getScope)…

JetBrains/MPS

A skill your agent uses when defining or debugging MPS dataflow builders for a concept — control/data flow declarations that drive reachability analysis and variable-use checking.

JetBrains/MPS

A skill your agent uses when creating or changing MPS editor definitions — the overall workflow from scaffolding a ConceptEditorDeclaration through componentizing reusable…

JetBrains/MPS

A skill your agent uses when authoring the non-layout parts of the MPS editor aspect — what happens when the user types, presses a key, triggers completion, pastes, or invokes a context action.

JetBrains/MPS

A skill your agent uses when defining or modifying an MPS generation plan — explicit ordering of generators, checkpoints for cross-model reference resolution, forks for parallel branches…

JetBrains/MPS

A skill your agent uses when defining or modifying MPS generators — author a generator module, add or edit root/reduction/weaving/pattern mapping rules, attach template macros ($COPYSRC, $LOOP, $IF…

JetBrains/MPS

A skill your agent uses when defining or editing MPS intentions (the Alt+Enter context-action aspect) — adding IntentionDeclaration roots, parameterized or surround-with variants…

JetBrains/MPS

A skill your agent uses when authoring or debugging MPS migration scripts that upgrade user models after a language definition changes — covers jetbrains.mps.lang.migration (MigrationScript…

JetBrains/MPS

A skill your agent uses when authoring or debugging MPS TextGen — concept-to-plain-text serialisation for languages whose final output is text (source files, config, scripts, DDL, XML, markdown).

JetBrains/MPS

A skill your agent uses when authoring or debugging MPS typesystem — inference rules (typeof :==: / :<=: / :=:), SubtypingRule, ComparisonRule, InequationReplacementRule, SubstituteTypeRule…

JetBrains/MPS

Author and edit MPS jetbrains.mps.baseLanguage (Java) nodes — choose between the Java parser and JSON AST blueprints, map Java syntax to baseLanguage concepts/roles, harvest persistent member…

JetBrains/MPS

A skill your agent uses 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…

JetBrains/MPS

Run or generate MPS Console code and jetbrains.mps.lang.smodel.query queries in MPS intentions, behavior, actions, generators, and BaseLanguage.

JetBrains/MPS

A skill your agent uses when authoring XML documents as MPS root nodes or building XML-generating generator templates with jetbrains.mps.core.xml — covers XmlFile, XmlDocument, prolog (XML…

JetBrains/MPS

A skill your agent uses when designing how multiple MPS languages relate or compose — choosing between language referencing, extension, reuse, and embedding, or deciding where a cross-language…

JetBrains/MPS

A skill your agent uses when writing or debugging MPS quotations and anti-quotations — "node literals" that create SNode trees inline in behavior, typesystem, intentions, generator, and other model…

JetBrains/MPS

Create and execute IDE run configurations for MPS root nodes via MPS MCP — Java Application for IMainClass / ClassConcept with main, JUnit Tests for ITestCase.

JetBrains/MPS

A skill your agent uses when writing or modifying tests inside MPS @tests models — NodesTestCase (typesystem, constraints, scopes, dataflow, generator output), EditorTestCase (intentions, actions…

JetBrains/MPS

A skill your agent uses when writing or editing MPS BaseLanguage code that uses the collections and closures language extensions — in behavior methods, typesystem and checking rules, generator…

JetBrains/MPS

Guide for using Structural Search and Replace in IntelliJ. An agent skill from JetBrains/MPS.

JetBrains/MPS

Create or refresh project-local DSL skills under .agents/skills/<dsl-name-dsl/ for one or more MPS languages after discovering concepts, sandbox examples, JSON blueprints, references, or gotchas.

JetBrains/MPS

Investigate inheritance between MPS languages and between concepts — extended languages, superconcepts, implemented interfaces, sub-/assignable concepts, and cross-language specialization.

JetBrains/MPS

Entry point for authoring or modifying an MPS language — index of all aspects (structure, editor, constraints, behavior, typesystem, intentions, actions, generator, textgen, accessories, generation…

JetBrains/MPS

Guidelines for implementing IntelliJ actions (AnAction). An agent skill from JetBrains/MPS.

JetBrains/MPS

Code style rules for IntelliJ codebase. An agent skill from JetBrains/MPS.

JetBrains/MPS