[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill-jetbrains-kotlin-spring-proxy-compatibility":3,"mdc--jf08o0-key":36,"related-repo-jetbrains-kotlin-spring-proxy-compatibility":639,"related-org-jetbrains-kotlin-spring-proxy-compatibility":761},{"slug":4,"name":4,"fn":5,"description":6,"org":7,"tags":11,"stars":25,"repoUrl":26,"updatedAt":27,"license":28,"forks":29,"topics":30,"repo":31,"sourceUrl":34,"mdContent":35},"kotlin-spring-proxy-compatibility","diagnose Kotlin Spring proxy failures","Diagnose and prevent Kotlin plus Spring proxy failures around `@Transactional`, `@Cacheable`, `@Async`, method security, retry, configuration proxies, and JPA entity requirements. Use when AOP annotations appear to do nothing, transactional or cache behavior is inconsistent, compiler plugins may be missing, self-invocation is suspected, or Kotlin final-by-default semantics may break Spring behavior.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},"jetbrains","JetBrains","https:\u002F\u002Fpexgzepcugksgbtrxkhf.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Forg-logos\u002Fjetbrains.png",[12,16,19,22],{"name":13,"slug":14,"type":15},"Kotlin","kotlin","tag",{"name":17,"slug":18,"type":15},"Spring","spring",{"name":20,"slug":21,"type":15},"Code Analysis","code-analysis",{"name":23,"slug":24,"type":15},"Debugging","debugging",252,"https:\u002F\u002Fgithub.com\u002FJetBrains\u002Fskills","2026-07-13T06:40:52.284972",null,17,[],{"repoUrl":26,"stars":25,"forks":29,"topics":32,"description":33},[],"Curated agent skills collection verified by JetBrains","https:\u002F\u002Fgithub.com\u002FJetBrains\u002Fskills\u002Ftree\u002FHEAD\u002Fkotlin-spring-proxy-compatibility","---\nname: kotlin-spring-proxy-compatibility\ndescription: Diagnose and prevent Kotlin plus Spring proxy failures around `@Transactional`, `@Cacheable`, `@Async`, method security, retry, configuration proxies, and JPA entity requirements. Use when AOP annotations appear to do nothing, transactional or cache behavior is inconsistent, compiler plugins may be missing, self-invocation is suspected, or Kotlin final-by-default semantics may break Spring behavior.\nmetadata:\n  short-description: \"Prevent final\u002Fproxy\u002FAOP runtime traps\"\n  author: Kotlin\n  source: https:\u002F\u002Fgithub.com\u002FKotlin\u002Fkotlin-backend-agent-skills\u002Ftree\u002Fmain\u002F.agents\u002Fskills\u002Fkotlin-spring-proxy-compatibility\n---\n\n# Kotlin Spring Proxy Compatibility\n\nSource mapping: Tier 1 critical skill derived from `Kotlin_Spring_Developer_Pipeline.md` (`SK-03`).\n\n## Mission\n\nExplain exactly why Spring interception does or does not happen for Kotlin code, then propose the safest fix.\nFocus on runtime behavior, not on code that merely looks annotated.\n\n## Read These Inputs\n\n- The class and method carrying `@Transactional`, `@Cacheable`, `@Async`, `@Retryable`, security annotations, or other proxy-triggering annotations.\n- The call site. Determine whether the method is called through another bean or through `this`.\n- Build files. Verify `kotlin(\"plugin.spring\")`, `kotlin(\"plugin.jpa\")`, or any custom `allOpen` and `noArg` configuration.\n- Whether the bean is proxied through an interface or through CGLIB class proxies.\n- For persistence problems, read the entity class shape and JPA plugin setup.\n\n## Diagnose In This Order\n\n1. Verify whether a proxy should exist at all.\n2. Verify whether the call crosses the proxy boundary.\n3. Verify whether the class or method is proxyable.\n4. Verify whether the annotation is placed on the method Spring actually intercepts.\n5. Verify whether build-time plugins opened the relevant classes.\n6. Verify whether the bug is actually transactional semantics, not proxy creation.\n\n## Core Checks\n\n- Check for self-invocation. A method calling another annotated method in the same class bypasses the proxy.\n- Check whether the target class or method is effectively final for the chosen proxy strategy.\n- Check whether a JDK proxy is used. If so, interception works through interface methods, not arbitrary class methods.\n- Check whether the annotated method is private or otherwise non-interceptable.\n- Check whether `@Configuration` classes, `@Service` classes, and JPA entities rely on the correct Kotlin compiler plugins.\n- Check whether the symptom comes from coroutines or async boundaries rather than proxy absence.\n\n## Preferred Fixes\n\nPrefer fixes in this order:\n\n1. Enable the correct Kotlin compiler plugin in Gradle.\n2. Move the intercepted method behind a real Spring bean boundary.\n3. Adjust interface or proxy strategy only if the current strategy is incompatible.\n4. Refactor responsibilities so that external callers cross the proxy naturally.\n5. Only as a last resort, inject the proxied bean into itself or use `AopContext`, and explain why this is a compromise.\n\n## Advanced Interception Traps\n\n- `@PostConstruct`, constructors, and init blocks run on the target object before ordinary proxy interception can help. Advice that depends on transactions, caching, security, or retries will not rescue initialization logic.\n- `@Async` changes threads. Transaction, security, MDC, and request context do not automatically flow the same way they do in synchronous code.\n- `@Retryable`, `@Transactional`, `@Cacheable`, and method security can stack. Advisor ordering changes behavior, especially when retries and transactions combine.\n- `@TransactionalEventListener` depends on transaction phase. If no transaction exists, the listener may never fire or may fire immediately depending on fallback behavior.\n- `@Configuration(proxyBeanMethods = false)` disables configuration-class method interception. Treat this as a performance and semantics choice, not a cosmetic flag.\n- Interface default methods, non-public methods, and methods reached only from internal helper paths may compile cleanly while still missing interception at runtime.\n- In coroutine and reactive flows, transaction and security propagation depend on the underlying stack and context propagation model. A proxy can exist while context still does not flow the way the author expects.\n\n## Expert Heuristics\n\n- If the symptom is \"annotation present but behavior absent,\" first ask whether the relevant call crossed a bean boundary. This catches more real bugs than checking `open` alone.\n- If the team wants a local helper method to stay private, do not force proxy semantics onto it. Move the transactional or cache boundary outward instead.\n- For caching and security, verify key computation and authorization point as separate concerns from proxy presence.\n- For JPA entities and configuration classes, distinguish opening for framework mechanics from opening for general extensibility. The former is usually acceptable; the latter may not be.\n\n## Kotlin-Specific Rules\n\n- Prefer compiler plugins over manually marking entire class hierarchies as `open`.\n- Do not generate JPA entities as `data class`.\n- Do not assume annotations on private methods will work because they compile.\n- Explain the difference between Kotlin source semantics and Spring runtime semantics.\n- If migrating Java to Kotlin, re-check every proxy-reliant class after translation.\n\n## Output Contract\n\nReturn these sections:\n\n- `Broken mechanism`: what Spring feature is expected to intercept the call.\n- `Why it failed`: one concrete runtime reason with code evidence.\n- `Minimal fix`: the smallest change that restores interception.\n- `Safer design option`: only if the current structure invites future proxy bugs.\n- `Verification`: how to prove the annotation now takes effect.\n\n## Guardrails\n\n- Do not suggest making every class `open` manually without first checking compiler plugins.\n- Do not confuse proxy absence with wrong propagation, wrong cache key, or other business logic issues.\n- Do not recommend `data class` entities or blanket `allOpen` for unrelated code.\n- Do not leave self-invocation unexplained. It is one of the most common hidden causes.\n\n## Quality Bar\n\nA good run of this skill makes the proxy model explicit and the fix easy to verify.\nA bad run tells the user to add annotations or `open` keywords without proving why interception failed.\n",{"data":37,"body":41},{"name":4,"description":6,"metadata":38},{"short-description":39,"author":13,"source":40},"Prevent final\u002Fproxy\u002FAOP runtime traps","https:\u002F\u002Fgithub.com\u002FKotlin\u002Fkotlin-backend-agent-skills\u002Ftree\u002Fmain\u002F.agents\u002Fskills\u002Fkotlin-spring-proxy-compatibility",{"type":42,"children":43},"root",[44,52,75,82,87,93,192,198,232,238,287,293,298,334,340,418,424,455,461,502,508,513,571,577,621,627],{"type":45,"tag":46,"props":47,"children":48},"element","h1",{"id":4},[49],{"type":50,"value":51},"text","Kotlin Spring Proxy Compatibility",{"type":45,"tag":53,"props":54,"children":55},"p",{},[56,58,65,67,73],{"type":50,"value":57},"Source mapping: Tier 1 critical skill derived from ",{"type":45,"tag":59,"props":60,"children":62},"code",{"className":61},[],[63],{"type":50,"value":64},"Kotlin_Spring_Developer_Pipeline.md",{"type":50,"value":66}," (",{"type":45,"tag":59,"props":68,"children":70},{"className":69},[],[71],{"type":50,"value":72},"SK-03",{"type":50,"value":74},").",{"type":45,"tag":76,"props":77,"children":79},"h2",{"id":78},"mission",[80],{"type":50,"value":81},"Mission",{"type":45,"tag":53,"props":83,"children":84},{},[85],{"type":50,"value":86},"Explain exactly why Spring interception does or does not happen for Kotlin code, then propose the safest fix.\nFocus on runtime behavior, not on code that merely looks annotated.",{"type":45,"tag":76,"props":88,"children":90},{"id":89},"read-these-inputs",[91],{"type":50,"value":92},"Read These Inputs",{"type":45,"tag":94,"props":95,"children":96},"ul",{},[97,133,146,182,187],{"type":45,"tag":98,"props":99,"children":100},"li",{},[101,103,109,111,117,118,124,125,131],{"type":50,"value":102},"The class and method carrying ",{"type":45,"tag":59,"props":104,"children":106},{"className":105},[],[107],{"type":50,"value":108},"@Transactional",{"type":50,"value":110},", ",{"type":45,"tag":59,"props":112,"children":114},{"className":113},[],[115],{"type":50,"value":116},"@Cacheable",{"type":50,"value":110},{"type":45,"tag":59,"props":119,"children":121},{"className":120},[],[122],{"type":50,"value":123},"@Async",{"type":50,"value":110},{"type":45,"tag":59,"props":126,"children":128},{"className":127},[],[129],{"type":50,"value":130},"@Retryable",{"type":50,"value":132},", security annotations, or other proxy-triggering annotations.",{"type":45,"tag":98,"props":134,"children":135},{},[136,138,144],{"type":50,"value":137},"The call site. 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Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[647,650,653,656],{"name":648,"slug":649,"type":15},"Creative","creative",{"name":651,"slug":652,"type":15},"Generative Art","generative-art",{"name":654,"slug":655,"type":15},"Graphics","graphics",{"name":657,"slug":658,"type":15},"JavaScript","javascript","2026-07-13T06:41:35.540127",{"slug":661,"name":661,"fn":662,"description":663,"org":664,"tags":665,"stars":25,"repoUrl":26,"updatedAt":676},"antfu","configure JavaScript projects with Anthony Fu's tools","Anthony Fu's opinionated tooling and conventions for JavaScript\u002FTypeScript projects. Use when setting up new projects, configuring ESLint\u002FPrettier alternatives, monorepos, library publishing, or when the user mentions Anthony Fu's preferences.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[666,669,672,673],{"name":667,"slug":668,"type":15},"Best Practices","best-practices",{"name":670,"slug":671,"type":15},"Engineering","engineering",{"name":657,"slug":658,"type":15},{"name":674,"slug":675,"type":15},"TypeScript","typescript","2026-07-13T06:43:13.153309",{"slug":678,"name":678,"fn":679,"description":680,"org":681,"tags":682,"stars":25,"repoUrl":26,"updatedAt":692},"brand-guidelines","apply Anthropic brand guidelines","Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[683,686,689],{"name":684,"slug":685,"type":15},"Branding","branding",{"name":687,"slug":688,"type":15},"Design","design",{"name":690,"slug":691,"type":15},"Typography","typography","2026-07-13T06:43:06.077629",{"slug":694,"name":694,"fn":695,"description":696,"org":697,"tags":698,"stars":25,"repoUrl":26,"updatedAt":707},"canvas-design","create visual art and design assets","Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[699,700,701,704],{"name":648,"slug":649,"type":15},{"name":687,"slug":688,"type":15},{"name":702,"slug":703,"type":15},"Images","images",{"name":705,"slug":706,"type":15},"PDF","pdf","2026-07-13T06:39:58.803113",{"slug":709,"name":709,"fn":710,"description":711,"org":712,"tags":713,"stars":25,"repoUrl":26,"updatedAt":726},"ci-cd-containerization-advisor","design CI\u002FCD pipelines for Kotlin applications","Design reproducible build, image, and deployment pipelines for Kotlin plus Spring applications, including CI verification, layered containers, rollout safety, and deployment-time migration coordination. Use when creating or improving Dockerfiles, CI workflows, image hardening, Kubernetes manifests, release gates, or deployment strategies for Spring Boot services, especially where build reproducibility and operational safety matter.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[714,717,720,723,724,725],{"name":715,"slug":716,"type":15},"CI\u002FCD","ci-cd",{"name":718,"slug":719,"type":15},"Containers","containers",{"name":721,"slug":722,"type":15},"Deployment","deployment",{"name":670,"slug":671,"type":15},{"name":13,"slug":14,"type":15},{"name":17,"slug":18,"type":15},"2026-07-13T06:41:47.83899",{"slug":728,"name":728,"fn":729,"description":730,"org":731,"tags":732,"stars":25,"repoUrl":26,"updatedAt":743},"cloudflare-deploy","deploy applications to Cloudflare","Deploy applications and infrastructure to Cloudflare using Workers, Pages, and related platform services. Use when the user asks to deploy, host, publish, or set up a project on Cloudflare.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[733,736,739,742],{"name":734,"slug":735,"type":15},"Cloudflare","cloudflare",{"name":737,"slug":738,"type":15},"Cloudflare Pages","cloudflare-pages",{"name":740,"slug":741,"type":15},"Cloudflare Workers","cloudflare-workers",{"name":721,"slug":722,"type":15},"2026-07-17T06:04:42.853896",{"slug":745,"name":745,"fn":746,"description":747,"org":748,"tags":749,"stars":25,"repoUrl":26,"updatedAt":759},"compose-ui-control","interact with Compose Desktop applications","Control a running Compose Desktop application via HTTP. Use when you need to interact with UI elements, click buttons, enter text, wait for elements to appear, or capture screenshots in a Compose Desktop app that has compose-ui-test-server enabled.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},[750,753,756],{"name":751,"slug":752,"type":15},"Automation","automation",{"name":754,"slug":755,"type":15},"Desktop","desktop",{"name":757,"slug":758,"type":15},"UI Components","ui-components","2026-07-13T06:40:38.798626",128,{"items":762,"total":883},[763,779,788,797,806,816,825,834,843,853,862,873],{"slug":764,"name":764,"fn":765,"description":766,"org":767,"tags":768,"stars":776,"repoUrl":777,"updatedAt":778},"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},[769,772,775],{"name":770,"slug":771,"type":15},"Architecture","architecture",{"name":773,"slug":774,"type":15},"Configuration","configuration",{"name":670,"slug":671,"type":15},1650,"https:\u002F\u002Fgithub.com\u002FJetBrains\u002FMPS","2026-07-17T06:06:57.311661",{"slug":780,"name":780,"fn":781,"description":782,"org":783,"tags":784,"stars":776,"repoUrl":777,"updatedAt":787},"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},[785,786],{"name":770,"slug":771,"type":15},{"name":670,"slug":671,"type":15},"2026-07-17T06:04:48.066901",{"slug":789,"name":789,"fn":790,"description":791,"org":792,"tags":793,"stars":776,"repoUrl":777,"updatedAt":796},"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},[794,795],{"name":770,"slug":771,"type":15},{"name":670,"slug":671,"type":15},"2026-07-13T06:45:21.757084",{"slug":798,"name":798,"fn":799,"description":800,"org":801,"tags":802,"stars":776,"repoUrl":777,"updatedAt":805},"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},[803,804],{"name":770,"slug":771,"type":15},{"name":20,"slug":21,"type":15},"2026-07-23T05:41:33.639365",{"slug":807,"name":807,"fn":808,"description":809,"org":810,"tags":811,"stars":776,"repoUrl":777,"updatedAt":815},"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},[812],{"name":813,"slug":814,"type":15},"Data Analysis","data-analysis","2026-07-13T06:45:19.114674",{"slug":817,"name":817,"fn":818,"description":819,"org":820,"tags":821,"stars":776,"repoUrl":777,"updatedAt":824},"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},[822,823],{"name":687,"slug":688,"type":15},{"name":757,"slug":758,"type":15},"2026-07-23T05:41:56.638151",{"slug":826,"name":826,"fn":827,"description":828,"org":829,"tags":830,"stars":776,"repoUrl":777,"updatedAt":833},"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},[831,832],{"name":670,"slug":671,"type":15},{"name":757,"slug":758,"type":15},"2026-07-23T05:41:49.666535",{"slug":835,"name":835,"fn":836,"description":837,"org":838,"tags":839,"stars":776,"repoUrl":777,"updatedAt":842},"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},[840,841],{"name":770,"slug":771,"type":15},{"name":670,"slug":671,"type":15},"2026-07-13T06:44:59.507855",{"slug":844,"name":844,"fn":845,"description":846,"org":847,"tags":848,"stars":776,"repoUrl":777,"updatedAt":852},"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},[849,850,851],{"name":770,"slug":771,"type":15},{"name":20,"slug":21,"type":15},{"name":670,"slug":671,"type":15},"2026-07-17T06:06:58.042999",{"slug":854,"name":854,"fn":855,"description":856,"org":857,"tags":858,"stars":776,"repoUrl":777,"updatedAt":861},"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},[859,860],{"name":770,"slug":771,"type":15},{"name":670,"slug":671,"type":15},"2026-07-23T05:41:48.692899",{"slug":863,"name":863,"fn":864,"description":865,"org":866,"tags":867,"stars":776,"repoUrl":777,"updatedAt":872},"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},[868,869],{"name":23,"slug":24,"type":15},{"name":870,"slug":871,"type":15},"Migration","migration","2026-07-13T06:45:20.372122",{"slug":874,"name":874,"fn":875,"description":876,"org":877,"tags":878,"stars":776,"repoUrl":777,"updatedAt":882},"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},[879],{"name":880,"slug":881,"type":15},"Data Modeling","data-modeling","2026-07-23T05:41:30.705975",188]