[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill-jetbrains-mps-dsl-memory":3,"mdc-p6qp1f-key":32,"related-repo-jetbrains-mps-dsl-memory":637,"related-org-jetbrains-mps-dsl-memory":715},{"slug":4,"name":4,"fn":5,"description":6,"org":7,"tags":11,"stars":19,"repoUrl":20,"updatedAt":21,"license":22,"forks":23,"topics":24,"repo":27,"sourceUrl":30,"mdContent":31},"mps-dsl-memory","manage local DSL project knowledge","Create or refresh project-local DSL skills under `.agents\u002Fskills\u002F\u003Cdsl-name>-dsl\u002F` for one or more MPS languages after discovering concepts, sandbox examples, JSON blueprints, references, or gotchas.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},"jetbrains","JetBrains","https:\u002F\u002Fpexgzepcugksgbtrxkhf.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Forg-logos\u002Fjetbrains.png",[12,16],{"name":13,"slug":14,"type":15},"Knowledge Management","knowledge-management","tag",{"name":17,"slug":18,"type":15},"Engineering","engineering",1650,"https:\u002F\u002Fgithub.com\u002FJetBrains\u002FMPS","2026-07-13T06:45:15.220243",null,311,[25,26],"domain-specific-language","dsl",{"repoUrl":20,"stars":19,"forks":23,"topics":28,"description":29},[25,26],"JetBrains Meta programming System","https:\u002F\u002Fgithub.com\u002FJetBrains\u002FMPS\u002Ftree\u002FHEAD\u002Fplugins\u002Fmcp-tools\u002Fresources\u002Fjetbrains\u002Fmps\u002Fagents\u002Fmcp\u002Fskills\u002Fmps-dsl-memory","---\nname: mps-dsl-memory\ndescription: Create or refresh project-local DSL skills under `.agents\u002Fskills\u002F\u003Cdsl-name>-dsl\u002F` for one or more MPS languages after discovering concepts, sandbox examples, JSON blueprints, references, or gotchas.\ntype: reference\n---\n\n### When to Use\n* A new MPS sample or DSL project has no generated DSL skill under `.agents\u002Fskills\u002F\u003Cdsl-name>-dsl\u002F`, or the existing one is outdated.\n* The user says \"bootstrap DSL skill\", \"generate DSL skill\", or \"document this DSL\".\n* You have just explored a DSL and want to persist your findings for future sessions as a project-local skill.\n\n### Prerequisites\n* MPS MCP tools are available.\n* The project has one or more language modules and at least one sandbox, example solution, or editable model that exercises the DSLs.\n* Use MPS MCP tools for discovery and model edits. Do not hand-edit serialized `.mps` XML.\n\n### Workflow\n1. **Discover languages**: Call `mps_mcp_get_project_structure` with `includeModels: false`. Identify all editable DSL language modules and derive each concept-tools language ref as `l:\u003Cuuid>:\u003ClanguageName>`.\n2. **Choose skill scope**: Prefer one generated skill per language. Use one combined skill only when the project languages are tightly coupled and users normally edit them together.\n3. **Find examples**: For each language or language group, call `mps_mcp_get_project_structure` with the relevant sandbox\u002Fexample solution as `startingPoint` and `includeRootNodes: true`. Record editable model refs and representative root refs.\n4. **Read concepts**: Call `mps_mcp_get_concept_details` with the relevant `l:\u003Cuuid>:\u003ClanguageName>` refs. Capture rootable concepts, concrete children, properties, child roles, references, and useful `shortDescription` text.\n5. **Sample sparingly**: Use `mps_mcp_print_node` only on representative roots or subtrees needed for reference targets, required roles, or reusable blueprints. Avoid dumping every root.\n6. **Generate DSL skills**: Create or update `.agents\u002Fskills\u002F\u003Cdsl-name>-dsl\u002F` for each selected scope. Preserve user-added notes unless they are stale or wrong.\n7. **Cross-link related skills**: When generated skills cover languages that extend, depend on, or are commonly used inside each other, add short links and usage notes between them.\n8. **Verify**: Confirm linked reference files exist, blueprint JSON parses, no `.DS_Store` or editor artifacts were added, and one or two recorded node refs still resolve if the sandbox may have changed.\n\n### Generated Skill Layout\n```text\n.agents\u002Fskills\u002F\u003Cdsl-name>-dsl\u002F\n|-- SKILL.md\n`-- references\u002F\n    |-- concepts.md\n    |-- sandbox.md\n    |-- workflows.md\n    |-- gotchas.md\n    `-- blueprints\u002F\n        |-- \u003Coperation>-skeleton.json\n        `-- \u003Coperation>-subtree.json\n```\n\nThe `\u003Cdsl-name>` slug is derived from the language namespace: use stable lowercase, split camel case and separators into words, and prefer the namespace's final meaningful segment unless the project consistently names the DSL differently. The `-dsl` suffix is mandatory — callers (such as `mps-mcp-workflow`) discover generated skills with the glob `.agents\u002Fskills\u002F*-dsl\u002F`.\n\n### Generated `SKILL.md` Requirements\n* Frontmatter:\n    * `name: \u003Cdsl-name>-dsl`\n    * `description:` Use when creating, editing, validating, or inspecting this DSL's models.\n* Short domain summary: two to four sentences. For combined skills, name each covered language and when to use the combined workflow.\n* Critical rules:\n    * Use MPS MCP tools; do not hand-edit `.mps` XML.\n    * Use `mps_mcp_get_concept_details` with `l:\u003Cuuid>:\u003ClanguageName>`, not `\u003Cuuid>(\u003ClanguageName>)`.\n    * Prefer skeleton-plus-subtree insertion for large or uncertain roots.\n    * Validate changed roots with `mps_mcp_check_root_node_problems`.\n* Quick start:\n    * Use the recorded sandbox model for examples or new sample roots.\n    * Start from `references\u002Fblueprints\u002F` for known shapes.\n    * Dry-run root JSON with `mps_mcp_insert_root_node_from_json`.\n    * Insert roots with `mps_mcp_insert_root_node_from_json`.\n    * Add child-role subtrees incrementally for large roots.\n    * Run `mps_mcp_check_root_node_problems` and any task-required build\u002Fgeneration checks.\n* Project references:\n    * Concept-tools language ref for each covered language.\n    * Sandbox\u002Fexample model refs.\n    * Primary editable modules.\n    * Dependencies or extension relationships between covered project languages, if relevant.\n* Related DSL skills:\n    * Link sibling generated skills when another project language supplies child concepts, expressions, commands, reference targets, or extensions used by this language.\n    * Explain when to load each related skill.\n* Reference directory links.\n\n### Reference Files\n* `references\u002Fconcepts.md`: concept hierarchy, rootable concepts, properties, child roles, references, and semantic notes.\n* `references\u002Fsandbox.md`: sandbox model refs, representative roots, configuration nodes, reference targets, and stable node refs.\n* `references\u002Fworkflows.md`: creation\u002Fediting recipes, including when to use full-root JSON versus skeleton-plus-subtrees.\n* `references\u002Fgotchas.md`: reference formats, ordering constraints, required roles, expression precedence issues, extension-language dependencies, and known validation failures.\n* `references\u002Fblueprints\u002F`: valid compact JSON skeletons and subtree templates.\n",{"data":33,"body":35},{"name":4,"description":6,"type":34},"reference",{"type":36,"children":37},"root",[38,47,76,82,108,114,291,297,309,346,360,574,580],{"type":39,"tag":40,"props":41,"children":43},"element","h3",{"id":42},"when-to-use",[44],{"type":45,"value":46},"text","When to Use",{"type":39,"tag":48,"props":49,"children":50},"ul",{},[51,66,71],{"type":39,"tag":52,"props":53,"children":54},"li",{},[55,57,64],{"type":45,"value":56},"A new MPS sample or DSL project has no generated DSL skill under ",{"type":39,"tag":58,"props":59,"children":61},"code",{"className":60},[],[62],{"type":45,"value":63},".agents\u002Fskills\u002F\u003Cdsl-name>-dsl\u002F",{"type":45,"value":65},", or the existing one is outdated.",{"type":39,"tag":52,"props":67,"children":68},{},[69],{"type":45,"value":70},"The user says \"bootstrap DSL skill\", \"generate DSL skill\", or \"document this DSL\".",{"type":39,"tag":52,"props":72,"children":73},{},[74],{"type":45,"value":75},"You have just explored a DSL and want to persist your findings for future sessions as a project-local skill.",{"type":39,"tag":40,"props":77,"children":79},{"id":78},"prerequisites",[80],{"type":45,"value":81},"Prerequisites",{"type":39,"tag":48,"props":83,"children":84},{},[85,90,95],{"type":39,"tag":52,"props":86,"children":87},{},[88],{"type":45,"value":89},"MPS MCP tools are available.",{"type":39,"tag":52,"props":91,"children":92},{},[93],{"type":45,"value":94},"The project has one or more language modules and at least one sandbox, example solution, or editable model that exercises the DSLs.",{"type":39,"tag":52,"props":96,"children":97},{},[98,100,106],{"type":45,"value":99},"Use MPS MCP tools for discovery and model edits. Do not hand-edit serialized ",{"type":39,"tag":58,"props":101,"children":103},{"className":102},[],[104],{"type":45,"value":105},".mps",{"type":45,"value":107}," XML.",{"type":39,"tag":40,"props":109,"children":111},{"id":110},"workflow",[112],{"type":45,"value":113},"Workflow",{"type":39,"tag":115,"props":116,"children":117},"ol",{},[118,153,163,196,228,246,263,273],{"type":39,"tag":52,"props":119,"children":120},{},[121,127,129,135,137,143,145,151],{"type":39,"tag":122,"props":123,"children":124},"strong",{},[125],{"type":45,"value":126},"Discover languages",{"type":45,"value":128},": Call ",{"type":39,"tag":58,"props":130,"children":132},{"className":131},[],[133],{"type":45,"value":134},"mps_mcp_get_project_structure",{"type":45,"value":136}," with ",{"type":39,"tag":58,"props":138,"children":140},{"className":139},[],[141],{"type":45,"value":142},"includeModels: false",{"type":45,"value":144},". Identify all editable DSL language modules and derive each concept-tools language ref as ",{"type":39,"tag":58,"props":146,"children":148},{"className":147},[],[149],{"type":45,"value":150},"l:\u003Cuuid>:\u003ClanguageName>",{"type":45,"value":152},".",{"type":39,"tag":52,"props":154,"children":155},{},[156,161],{"type":39,"tag":122,"props":157,"children":158},{},[159],{"type":45,"value":160},"Choose skill scope",{"type":45,"value":162},": Prefer one generated skill per language. Use one combined skill only when the project languages are tightly coupled and users normally edit them together.",{"type":39,"tag":52,"props":164,"children":165},{},[166,171,173,178,180,186,188,194],{"type":39,"tag":122,"props":167,"children":168},{},[169],{"type":45,"value":170},"Find examples",{"type":45,"value":172},": For each language or language group, call ",{"type":39,"tag":58,"props":174,"children":176},{"className":175},[],[177],{"type":45,"value":134},{"type":45,"value":179}," with the relevant sandbox\u002Fexample solution as ",{"type":39,"tag":58,"props":181,"children":183},{"className":182},[],[184],{"type":45,"value":185},"startingPoint",{"type":45,"value":187}," and ",{"type":39,"tag":58,"props":189,"children":191},{"className":190},[],[192],{"type":45,"value":193},"includeRootNodes: true",{"type":45,"value":195},". Record editable model refs and representative root refs.",{"type":39,"tag":52,"props":197,"children":198},{},[199,204,205,211,213,218,220,226],{"type":39,"tag":122,"props":200,"children":201},{},[202],{"type":45,"value":203},"Read concepts",{"type":45,"value":128},{"type":39,"tag":58,"props":206,"children":208},{"className":207},[],[209],{"type":45,"value":210},"mps_mcp_get_concept_details",{"type":45,"value":212}," with the relevant ",{"type":39,"tag":58,"props":214,"children":216},{"className":215},[],[217],{"type":45,"value":150},{"type":45,"value":219}," refs. Capture rootable concepts, concrete children, properties, child roles, references, and useful ",{"type":39,"tag":58,"props":221,"children":223},{"className":222},[],[224],{"type":45,"value":225},"shortDescription",{"type":45,"value":227}," text.",{"type":39,"tag":52,"props":229,"children":230},{},[231,236,238,244],{"type":39,"tag":122,"props":232,"children":233},{},[234],{"type":45,"value":235},"Sample sparingly",{"type":45,"value":237},": Use ",{"type":39,"tag":58,"props":239,"children":241},{"className":240},[],[242],{"type":45,"value":243},"mps_mcp_print_node",{"type":45,"value":245}," only on representative roots or subtrees needed for reference targets, required roles, or reusable blueprints. Avoid dumping every root.",{"type":39,"tag":52,"props":247,"children":248},{},[249,254,256,261],{"type":39,"tag":122,"props":250,"children":251},{},[252],{"type":45,"value":253},"Generate DSL skills",{"type":45,"value":255},": Create or update ",{"type":39,"tag":58,"props":257,"children":259},{"className":258},[],[260],{"type":45,"value":63},{"type":45,"value":262}," for each selected scope. Preserve user-added notes unless they are stale or wrong.",{"type":39,"tag":52,"props":264,"children":265},{},[266,271],{"type":39,"tag":122,"props":267,"children":268},{},[269],{"type":45,"value":270},"Cross-link related skills",{"type":45,"value":272},": When generated skills cover languages that extend, depend on, or are commonly used inside each other, add short links and usage notes between them.",{"type":39,"tag":52,"props":274,"children":275},{},[276,281,283,289],{"type":39,"tag":122,"props":277,"children":278},{},[279],{"type":45,"value":280},"Verify",{"type":45,"value":282},": Confirm linked reference files exist, blueprint JSON parses, no ",{"type":39,"tag":58,"props":284,"children":286},{"className":285},[],[287],{"type":45,"value":288},".DS_Store",{"type":45,"value":290}," or editor artifacts were added, and one or two recorded node refs still resolve if the sandbox may have changed.",{"type":39,"tag":40,"props":292,"children":294},{"id":293},"generated-skill-layout",[295],{"type":45,"value":296},"Generated Skill Layout",{"type":39,"tag":298,"props":299,"children":304},"pre",{"className":300,"code":302,"language":45,"meta":303},[301],"language-text",".agents\u002Fskills\u002F\u003Cdsl-name>-dsl\u002F\n|-- SKILL.md\n`-- references\u002F\n    |-- concepts.md\n    |-- sandbox.md\n    |-- workflows.md\n    |-- gotchas.md\n    `-- blueprints\u002F\n        |-- \u003Coperation>-skeleton.json\n        `-- \u003Coperation>-subtree.json\n","",[305],{"type":39,"tag":58,"props":306,"children":307},{"__ignoreMap":303},[308],{"type":45,"value":302},{"type":39,"tag":310,"props":311,"children":312},"p",{},[313,315,321,323,329,331,337,339,345],{"type":45,"value":314},"The ",{"type":39,"tag":58,"props":316,"children":318},{"className":317},[],[319],{"type":45,"value":320},"\u003Cdsl-name>",{"type":45,"value":322}," slug is derived from the language namespace: use stable lowercase, split camel case and separators into words, and prefer the namespace's final meaningful segment unless the project consistently names the DSL differently. The ",{"type":39,"tag":58,"props":324,"children":326},{"className":325},[],[327],{"type":45,"value":328},"-dsl",{"type":45,"value":330}," suffix is mandatory — callers (such as ",{"type":39,"tag":58,"props":332,"children":334},{"className":333},[],[335],{"type":45,"value":336},"mps-mcp-workflow",{"type":45,"value":338},") discover generated skills with the glob ",{"type":39,"tag":58,"props":340,"children":342},{"className":341},[],[343],{"type":45,"value":344},".agents\u002Fskills\u002F*-dsl\u002F",{"type":45,"value":152},{"type":39,"tag":40,"props":347,"children":349},{"id":348},"generated-skillmd-requirements",[350,352,358],{"type":45,"value":351},"Generated ",{"type":39,"tag":58,"props":353,"children":355},{"className":354},[],[356],{"type":45,"value":357},"SKILL.md",{"type":45,"value":359}," Requirements",{"type":39,"tag":48,"props":361,"children":362},{},[363,391,396,457,523,551,569],{"type":39,"tag":52,"props":364,"children":365},{},[366,368],{"type":45,"value":367},"Frontmatter:\n",{"type":39,"tag":48,"props":369,"children":370},{},[371,380],{"type":39,"tag":52,"props":372,"children":373},{},[374],{"type":39,"tag":58,"props":375,"children":377},{"className":376},[],[378],{"type":45,"value":379},"name: \u003Cdsl-name>-dsl",{"type":39,"tag":52,"props":381,"children":382},{},[383,389],{"type":39,"tag":58,"props":384,"children":386},{"className":385},[],[387],{"type":45,"value":388},"description:",{"type":45,"value":390}," Use when creating, editing, validating, or inspecting this DSL's models.",{"type":39,"tag":52,"props":392,"children":393},{},[394],{"type":45,"value":395},"Short domain summary: two to four sentences. For combined skills, name each covered language and when to use the combined workflow.",{"type":39,"tag":52,"props":397,"children":398},{},[399,401],{"type":45,"value":400},"Critical rules:\n",{"type":39,"tag":48,"props":402,"children":403},{},[404,415,440,445],{"type":39,"tag":52,"props":405,"children":406},{},[407,409,414],{"type":45,"value":408},"Use MPS MCP tools; do not hand-edit ",{"type":39,"tag":58,"props":410,"children":412},{"className":411},[],[413],{"type":45,"value":105},{"type":45,"value":107},{"type":39,"tag":52,"props":416,"children":417},{},[418,420,425,426,431,433,439],{"type":45,"value":419},"Use ",{"type":39,"tag":58,"props":421,"children":423},{"className":422},[],[424],{"type":45,"value":210},{"type":45,"value":136},{"type":39,"tag":58,"props":427,"children":429},{"className":428},[],[430],{"type":45,"value":150},{"type":45,"value":432},", not ",{"type":39,"tag":58,"props":434,"children":436},{"className":435},[],[437],{"type":45,"value":438},"\u003Cuuid>(\u003ClanguageName>)",{"type":45,"value":152},{"type":39,"tag":52,"props":441,"children":442},{},[443],{"type":45,"value":444},"Prefer skeleton-plus-subtree insertion for large or uncertain roots.",{"type":39,"tag":52,"props":446,"children":447},{},[448,450,456],{"type":45,"value":449},"Validate changed roots with ",{"type":39,"tag":58,"props":451,"children":453},{"className":452},[],[454],{"type":45,"value":455},"mps_mcp_check_root_node_problems",{"type":45,"value":152},{"type":39,"tag":52,"props":458,"children":459},{},[460,462],{"type":45,"value":461},"Quick start:\n",{"type":39,"tag":48,"props":463,"children":464},{},[465,470,483,495,506,511],{"type":39,"tag":52,"props":466,"children":467},{},[468],{"type":45,"value":469},"Use the recorded sandbox model for examples or new sample roots.",{"type":39,"tag":52,"props":471,"children":472},{},[473,475,481],{"type":45,"value":474},"Start from ",{"type":39,"tag":58,"props":476,"children":478},{"className":477},[],[479],{"type":45,"value":480},"references\u002Fblueprints\u002F",{"type":45,"value":482}," for known shapes.",{"type":39,"tag":52,"props":484,"children":485},{},[486,488,494],{"type":45,"value":487},"Dry-run root JSON with ",{"type":39,"tag":58,"props":489,"children":491},{"className":490},[],[492],{"type":45,"value":493},"mps_mcp_insert_root_node_from_json",{"type":45,"value":152},{"type":39,"tag":52,"props":496,"children":497},{},[498,500,505],{"type":45,"value":499},"Insert roots with ",{"type":39,"tag":58,"props":501,"children":503},{"className":502},[],[504],{"type":45,"value":493},{"type":45,"value":152},{"type":39,"tag":52,"props":507,"children":508},{},[509],{"type":45,"value":510},"Add child-role subtrees incrementally for large roots.",{"type":39,"tag":52,"props":512,"children":513},{},[514,516,521],{"type":45,"value":515},"Run ",{"type":39,"tag":58,"props":517,"children":519},{"className":518},[],[520],{"type":45,"value":455},{"type":45,"value":522}," and any task-required build\u002Fgeneration checks.",{"type":39,"tag":52,"props":524,"children":525},{},[526,528],{"type":45,"value":527},"Project references:\n",{"type":39,"tag":48,"props":529,"children":530},{},[531,536,541,546],{"type":39,"tag":52,"props":532,"children":533},{},[534],{"type":45,"value":535},"Concept-tools language ref for each covered language.",{"type":39,"tag":52,"props":537,"children":538},{},[539],{"type":45,"value":540},"Sandbox\u002Fexample model refs.",{"type":39,"tag":52,"props":542,"children":543},{},[544],{"type":45,"value":545},"Primary editable modules.",{"type":39,"tag":52,"props":547,"children":548},{},[549],{"type":45,"value":550},"Dependencies or extension relationships between covered project languages, if relevant.",{"type":39,"tag":52,"props":552,"children":553},{},[554,556],{"type":45,"value":555},"Related DSL skills:\n",{"type":39,"tag":48,"props":557,"children":558},{},[559,564],{"type":39,"tag":52,"props":560,"children":561},{},[562],{"type":45,"value":563},"Link sibling generated skills when another project language supplies child concepts, expressions, commands, reference targets, or extensions used by this language.",{"type":39,"tag":52,"props":565,"children":566},{},[567],{"type":45,"value":568},"Explain when to load each related skill.",{"type":39,"tag":52,"props":570,"children":571},{},[572],{"type":45,"value":573},"Reference directory links.",{"type":39,"tag":40,"props":575,"children":577},{"id":576},"reference-files",[578],{"type":45,"value":579},"Reference Files",{"type":39,"tag":48,"props":581,"children":582},{},[583,594,605,616,627],{"type":39,"tag":52,"props":584,"children":585},{},[586,592],{"type":39,"tag":58,"props":587,"children":589},{"className":588},[],[590],{"type":45,"value":591},"references\u002Fconcepts.md",{"type":45,"value":593},": concept hierarchy, rootable concepts, properties, child roles, references, and semantic notes.",{"type":39,"tag":52,"props":595,"children":596},{},[597,603],{"type":39,"tag":58,"props":598,"children":600},{"className":599},[],[601],{"type":45,"value":602},"references\u002Fsandbox.md",{"type":45,"value":604},": sandbox model refs, representative roots, configuration nodes, reference targets, and stable node refs.",{"type":39,"tag":52,"props":606,"children":607},{},[608,614],{"type":39,"tag":58,"props":609,"children":611},{"className":610},[],[612],{"type":45,"value":613},"references\u002Fworkflows.md",{"type":45,"value":615},": creation\u002Fediting recipes, including when to use full-root JSON versus skeleton-plus-subtrees.",{"type":39,"tag":52,"props":617,"children":618},{},[619,625],{"type":39,"tag":58,"props":620,"children":622},{"className":621},[],[623],{"type":45,"value":624},"references\u002Fgotchas.md",{"type":45,"value":626},": reference formats, ordering constraints, required roles, expression precedence issues, extension-language dependencies, and known validation failures.",{"type":39,"tag":52,"props":628,"children":629},{},[630,635],{"type":39,"tag":58,"props":631,"children":633},{"className":632},[],[634],{"type":45,"value":480},{"type":45,"value":636},": valid compact JSON skeletons and subtree templates.",{"items":638,"total":714},[639,653,662,671,682,692,705],{"slug":640,"name":640,"fn":641,"description":642,"org":643,"tags":644,"stars":19,"repoUrl":20,"updatedAt":652},"mps-aspect-accessories","configure JetBrains MPS module dependencies","Wire MPS module and model dependencies, used languages, used devkits, extended languages, runtime solutions, accessory models, and language\u002Fdependency versions. Use when adding\u002Fremoving module dependencies, importing languages or devkits into a model, declaring runtime solutions, or shipping accessory content visible to consumers without explicit import.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[645,648,651],{"name":646,"slug":647,"type":15},"Architecture","architecture",{"name":649,"slug":650,"type":15},"Configuration","configuration",{"name":17,"slug":18,"type":15},"2026-07-17T06:06:57.311661",{"slug":654,"name":654,"fn":655,"description":656,"org":657,"tags":658,"stars":19,"repoUrl":20,"updatedAt":661},"mps-aspect-actions","define and edit MPS node factories","Use when defining or editing MPS node factories (the \"actions\" aspect) — `NodeFactories` roots, per-concept `NodeFactory` setup functions that initialize a freshly created node and optionally copy data from a replaced `sampleNode`, plus the actions aspect's `CopyPasteHandlers` and `PasteWrappers` roots. Reach for this skill when a substitution, side transform, completion replacement, or `add new initialized(...)` should preserve fields from the node it is replacing, or when defaults set in a constructor are not enough.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[659,660],{"name":646,"slug":647,"type":15},{"name":17,"slug":18,"type":15},"2026-07-17T06:04:48.066901",{"slug":663,"name":663,"fn":664,"description":665,"org":666,"tags":667,"stars":19,"repoUrl":20,"updatedAt":670},"mps-aspect-behavior","define and edit MPS concept behavior","Use when defining or editing MPS `ConceptBehavior` — per-concept methods (non-virtual \u002F virtual \u002F abstract \u002F static \u002F virtual static), constructors, virtual dispatch (MRO), super and interface-default calls (`super\u003CInterface>.method`), overriding methods from `lang.core.behavior` interfaces such as `ScopeProvider.getScope` \u002F `INamedConcept.getName` \u002F `BaseConcept.getPresentation`, calling sibling methods (`LocalBehaviorMethodCall`) and behavior methods from other aspects via `node.method(...)`. Reach for this skill whenever the task involves authoring or modifying `\u003Clang>\u002FlanguageModels\u002Fbehavior.mps`.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[668,669],{"name":646,"slug":647,"type":15},{"name":17,"slug":18,"type":15},"2026-07-13T06:45:21.757084",{"slug":672,"name":672,"fn":673,"description":674,"org":675,"tags":676,"stars":19,"repoUrl":20,"updatedAt":681},"mps-aspect-constraints","define JetBrains MPS language constraints","Use when defining or editing MPS language constraints — property validators \u002F setters \u002F getters, referent search scopes (imperative or inherited via `ScopeProvider.getScope`), `referentSetHandler` side effects, default-scope blocks, `canBeChild` \u002F `canBeParent` \u002F `canBeAncestor` \u002F `canBeRoot` placement rules, `defaultConcreteConcept` for abstract concepts, `set \u003Cread-only>` and `{name}` aliasing, and scope helpers (`SimpleRoleScope`, `ListScope`, `CompositeScope`, `HidingByNameScope`). Reach for this skill whenever the task involves authoring or modifying `\u003Clang>\u002FlanguageModels\u002Fconstraints.mps`.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[677,678],{"name":646,"slug":647,"type":15},{"name":679,"slug":680,"type":15},"Code Analysis","code-analysis","2026-07-23T05:41:33.639365",{"slug":683,"name":683,"fn":684,"description":685,"org":686,"tags":687,"stars":19,"repoUrl":20,"updatedAt":691},"mps-aspect-dataflow","define and debug MPS dataflow builders","Use when defining or debugging MPS dataflow builders for a concept — control\u002Fdata flow declarations that drive reachability analysis and variable-use checking. Covers DataFlowBuilderDeclaration, BuilderBlock, emit instructions (code for, jump, ifjump, label, read, write, ret, mayBeUnreachable), positions (AfterPosition, BeforePosition, LabelPosition), the jetbrains.mps.lang.dataFlow language, the NodeParameter implicit, BL+smodel usage inside builder bodies, and IBuilderMode for advanced analyses such as nullable\u002Fnon-null tracking.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[688],{"name":689,"slug":690,"type":15},"Data Analysis","data-analysis","2026-07-13T06:45:19.114674",{"slug":693,"name":693,"fn":694,"description":695,"org":696,"tags":697,"stars":19,"repoUrl":20,"updatedAt":704},"mps-aspect-editor","define MPS editor layouts","Use when creating or changing MPS editor definitions — the overall workflow from scaffolding a `ConceptEditorDeclaration` through componentizing reusable `EditorComponentDeclaration`s, refining cell models and cell layouts, applying style sheets and indent-layout style items, wiring smart references, leveraging inheritance via super-concepts and interfaces, inspecting (`print_node_json`, `show_node_representation`) and validating (`check_root_node_problems`). Covers `jetbrains.mps.lang.editor` cell models (`CellModel_RefNode`\u002F`CellModel_RefNodeList`\u002F`CellModel_RefCell`\u002F`CellModel_Property`\u002F`CellModel_Constant`), layout choices, and JSON blueprints for common editor shapes. For the non-layout side (action maps, keymaps, transformation\u002Fsubstitute menus) use `mps-aspect-editor-menus-and-keymaps`.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[698,701],{"name":699,"slug":700,"type":15},"Design","design",{"name":702,"slug":703,"type":15},"UI Components","ui-components","2026-07-23T05:41:56.638151",{"slug":706,"name":706,"fn":707,"description":708,"org":709,"tags":710,"stars":19,"repoUrl":20,"updatedAt":713},"mps-aspect-editor-menus-and-keymaps","author MPS editor menus and keymaps","Use 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. Covers action maps (`CellActionMapDeclaration`), cell keymaps (`CellKeyMapDeclaration`), transformation menus (`TransformationMenu_Default` \u002F `_Named` \u002F `_Contribution`), substitute menus (`SubstituteMenu_Default` \u002F `SubstituteMenu` \u002F contributions), side transforms (LEFT\u002FRIGHT), legacy cell menus, paste wrappers and copy-paste handlers (in the actions language), completion styling, reference presentation, two-step deletion, and the editor selection API. Trigger terms: `actionMap`, `keyMap`, `delete_action_id`, `transformationMenu`, `substituteMenu`, `Ctrl+Space`, `Ctrl+Alt+B`, side transform, paste wrapper, completion styling, `PasteWrappers`, `CopyPasteHandlers`. For the **layout** side (cells, layouts, style sheets) use `mps-aspect-editor` instead.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[711,712],{"name":17,"slug":18,"type":15},{"name":702,"slug":703,"type":15},"2026-07-23T05:41:49.666535",31,{"items":716,"total":803},[717,723,728,733,738,742,747,752,761,771,780,793],{"slug":640,"name":640,"fn":641,"description":642,"org":718,"tags":719,"stars":19,"repoUrl":20,"updatedAt":652},{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[720,721,722],{"name":646,"slug":647,"type":15},{"name":649,"slug":650,"type":15},{"name":17,"slug":18,"type":15},{"slug":654,"name":654,"fn":655,"description":656,"org":724,"tags":725,"stars":19,"repoUrl":20,"updatedAt":661},{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[726,727],{"name":646,"slug":647,"type":15},{"name":17,"slug":18,"type":15},{"slug":663,"name":663,"fn":664,"description":665,"org":729,"tags":730,"stars":19,"repoUrl":20,"updatedAt":670},{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[731,732],{"name":646,"slug":647,"type":15},{"name":17,"slug":18,"type":15},{"slug":672,"name":672,"fn":673,"description":674,"org":734,"tags":735,"stars":19,"repoUrl":20,"updatedAt":681},{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[736,737],{"name":646,"slug":647,"type":15},{"name":679,"slug":680,"type":15},{"slug":683,"name":683,"fn":684,"description":685,"org":739,"tags":740,"stars":19,"repoUrl":20,"updatedAt":691},{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[741],{"name":689,"slug":690,"type":15},{"slug":693,"name":693,"fn":694,"description":695,"org":743,"tags":744,"stars":19,"repoUrl":20,"updatedAt":704},{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[745,746],{"name":699,"slug":700,"type":15},{"name":702,"slug":703,"type":15},{"slug":706,"name":706,"fn":707,"description":708,"org":748,"tags":749,"stars":19,"repoUrl":20,"updatedAt":713},{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[750,751],{"name":17,"slug":18,"type":15},{"name":702,"slug":703,"type":15},{"slug":753,"name":753,"fn":754,"description":755,"org":756,"tags":757,"stars":19,"repoUrl":20,"updatedAt":760},"mps-aspect-generation-plan","modify MPS generation plans","Use when defining or modifying an MPS generation plan — explicit ordering of generators, checkpoints for cross-model reference resolution, forks for parallel branches, IncludePlan composition, conditional PlanContribution activation, ParameterEquals\u002FConceptListSelector fork selectors, and InitModelAttributes for targetFacet routing. Apply when working with @genplan models, the jetbrains.mps.lang.generator.plan language, attaching plans via DevKits or the Custom generation facet, or debugging cross-model mapping label resolution.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[758,759],{"name":646,"slug":647,"type":15},{"name":17,"slug":18,"type":15},"2026-07-13T06:44:59.507855",{"slug":762,"name":762,"fn":763,"description":764,"org":765,"tags":766,"stars":19,"repoUrl":20,"updatedAt":770},"mps-aspect-generator","define JetBrains MPS generator rules","Use when defining or modifying MPS generators — author a generator module, add or edit root\u002Freduction\u002Fweaving\u002Fpattern mapping rules, attach template macros ($COPY_SRC, $LOOP, $IF, $PROPERTY, $REF, $SWITCH, $MAP_SRC, $WEAVE, $INSERT, $LABEL, $TRACE, $VAR), wire mapping labels, build template switches, write pre\u002Fpost mapping scripts, navigate `genContext`, or debug \"rule didn't fire\", missing references, empty output, infinite reduction loops, and generated-Java compile failures.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[767,768,769],{"name":646,"slug":647,"type":15},{"name":679,"slug":680,"type":15},{"name":17,"slug":18,"type":15},"2026-07-17T06:06:58.042999",{"slug":772,"name":772,"fn":773,"description":774,"org":775,"tags":776,"stars":19,"repoUrl":20,"updatedAt":779},"mps-aspect-intentions","define and edit MPS intentions","Use when defining or editing MPS intentions (the Alt+Enter context-action aspect) — adding `IntentionDeclaration` roots, parameterized or surround-with variants, description\u002FisApplicable\u002Fexecute blocks, child-filter functions, factory-initialized AST splicing, or debugging why an intention is not offered. Lives in the language's `intentions` model and uses `jetbrains.mps.lang.intentions`.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[777,778],{"name":646,"slug":647,"type":15},{"name":17,"slug":18,"type":15},"2026-07-23T05:41:48.692899",{"slug":781,"name":781,"fn":782,"description":783,"org":784,"tags":785,"stars":19,"repoUrl":20,"updatedAt":792},"mps-aspect-migrations","author and debug MPS migration scripts","Use when authoring or debugging MPS migration scripts that upgrade user models after a language definition changes — covers jetbrains.mps.lang.migration (MigrationScript class-based, PureMigrationScript declarative, MoveConcept\u002FMoveContainmentLink\u002FMoveReferenceLink\u002FMoveProperty, ordering via OrderDependency, data exchange via putData\u002FgetData, RefactoringLog, ConceptMigrationReference) and jetbrains.mps.lang.script Enhancement Scripts (MigrationScript with MigrationScriptPart_Instance, ExtractInterfaceMigration, FactoryMigrationScriptPart, CommentMigrationScriptPart) — when a model needs version-gated upgrade, concept rename or removal, link or property rename, instance-level transformation, or composition of migration steps.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[786,789],{"name":787,"slug":788,"type":15},"Debugging","debugging",{"name":790,"slug":791,"type":15},"Migration","migration","2026-07-13T06:45:20.372122",{"slug":794,"name":794,"fn":795,"description":796,"org":797,"tags":798,"stars":19,"repoUrl":20,"updatedAt":802},"mps-aspect-structure-concepts","define concepts in MPS structure aspect","Define concepts, interface concepts, enumerations, and constrained data types in an MPS language's `structure` aspect. Covers smart-reference detection, alias rules, cardinality, INamedConcept usage, bulk creation, and the full `mps_mcp_alter_structure` \u002F `mps_mcp_query_structure` reference. Use when authoring or modifying a language's structure model.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[799],{"name":800,"slug":801,"type":15},"Data Modeling","data-modeling","2026-07-23T05:41:30.705975",188]