{"slug":"mkosir-typescript-types","name":"typescript-types","description":"Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types.","long_description":"---\nname: typescript-types\ndescription: Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types.\n---\n\n# Types\n\nApply the TypeScript Style Guide's type conventions in the context of the current task.\n\n## Workflow\n\n1. Inspect the consuming repository's conventions and configuration.\n2. Let explicit repository conventions take precedence over this opinionated guidance.\n3. Apply, review, or explain only the guidance relevant to the task.\n4. State important tradeoffs when the appropriate model depends on context or judgment.\n\n## Boundaries\n\n- Keep TypeScript and ESLint responsible for checks they can enforce automatically.\n- Do not introduce unrelated TypeScript Style Guide conventions merely because this skill is active.\n\n<!-- BEGIN CANONICAL GUIDE CONTENT -->\n\n## Types\n\nWhen creating types, consider how they would best **describe our code**.  \nBeing expressive and keeping types as **narrow as possible** offers several benefits to the codebase:\n\n- Increased Type Safety - Catch errors at compile time, as narrowed types provide more specific information about the shape and behavior of your data.\n- Improved Code Clarity - Reduces cognitive load by providing clearer boundaries and constraints on your data, making your code easier for other developers to understand.\n- Easier Refactoring - With narrower types, making changes to your code becomes less risky, allowing you to refactor with confidence.\n\n### Type Inference\n\nAs a rule of thumb, explicitly declare types only when it helps to narrow them.\n\n<Note>\n  Just because you don't need to add types doesn't mean you shouldn't. In some cases, explicitly declaring types can\n  improve code readability and clarify intent.\n</Note>\n\nExplicitly declare types when doing so helps to narrow them:\n\n```ts\n// ❌ Avoid\nconst employees = new Map(); // Inferred as wide type 'Map<any, any>'\nemployees.set('Lea', 17);\ntype UserRole = 'admin' | 'guest';\nconst [userRole, setUserRole] = useState('admin'); // Inferred as 'string', not the desired narrowed literal type\n\n// ✅ Use explicit type declarations to narrow the types.\nconst employees = new Map<string, number>(); // Narrowed to 'Map<string, number>'\nemployees.set('Gabriel', 32);\ntype UserRole = 'admin' | 'guest';\nconst [userRole, setUserRole] = useState<UserRole>('admin'); // Explicit type 'UserRole'\n```\n\nAvoid explicitly declaring types when they can be inferred:\n\n```ts\n// ❌ Avoid\nconst userRole: string = 'admin'; // Inferred as wide type 'string'\nconst employees = new Map<string, number>([['Gabriel', 32]]); // Redundant type declaration\nconst [isActive, setIsActive] = useState<boolean>(false); // Redundant, inferred as 'boolean'\n\n// ✅ Use type inference.\nconst USER_ROLE = 'admin'; // Inferred as narrowed string literal type 'admin'\nconst employees = new Map([['Gabriel', 32]]); // Inferred as 'Map<string, number>'\nconst [isActive, setIsActive] = useState(false); // Inferred as 'boolean'\n```\n\n### Data Immutability\n\nImmutability should be a key principle. Wherever possible, prevent unintended mutations with types like `Readonly` and `ReadonlyArray`.\n\n- Readonly types help prevent accidental mutations and bugs caused by unintended side effects. This protection exists during type checking and does not freeze values at runtime.\n- When performing data processing, always return new arrays, objects, or other reference-based data structures. To minimize cognitive load for future developers, strive to keep data objects flat and concise.\n- Use mutations sparingly, only in cases where they are truly necessary, such as when dealing with complex objects or optimizing for performance.\n\n```ts\n// ❌ Avoid data mutations\nconst removeFirstUser = (users: Array<User>) => {\n  if (users.length === 0) {\n    return users;\n  }\n  return users.splice(1);\n};\n\n// ✅ Use readonly type to prevent accidental mutations\nconst removeFirstUser = (users: ReadonlyArray<User>) => {\n  if (users.length === 0) {\n    return users;\n  }\n  return users.slice(1);\n  // Using arr.splice(1) errors - Function 'splice' does not exist on 'users'\n};\n```\n\n### Type-Safe Constants With Satisfies\n\nThe `as const satisfies` syntax combines narrow, readonly inference with type validation. It is useful when a constant should retain its exact values while conforming to a broader type.\n\nKey benefits:\n\n- Readonly values with `as const`\n  - Ensures the constant is treated as readonly.\n  - Narrows the types of values to their literals, preventing accidental modifications.\n- Validation with `satisfies`\n  - Ensures the object conforms to a broader type without widening its inferred type.\n  - Helps catch type mismatches at compile time while preserving narrowed inferred types.\n\nArray constants:\n\n```ts\ntype UserRole = 'admin' | 'editor' | 'moderator' | 'viewer' | 'guest';\n\n// ❌ Avoid constant of wide type\nconst DASHBOARD_ACCESS_ROLES: ReadonlyArray<UserRole> = ['admin', 'editor', 'moderator'];\n\n// ❌ Avoid constant with incorrect values\nconst DASHBOARD_ACCESS_ROLES = ['admin', 'contributor', 'analyst'] as const;\n\n// ✅ Use readonly constant of narrowed type\nconst DASHBOARD_ACCESS_ROLES = ['admin', 'editor', 'moderator'] as const satisfies ReadonlyArray<UserRole>;\n```\n\nObject constants:\n\n```ts\ntype OrderStatus = {\n  pending: 'pending' | 'idle';\n  fulfilled: boolean;\n  error: string;\n};\n\n// ❌ Avoid mutable constant of wide type\nconst IDLE_ORDER: OrderStatus = {\n  pending: 'idle',\n  fulfilled: true,\n  error: 'Shipping Error',\n};\n\n// ❌ Avoid constant with incorrect values\nconst IDLE_ORDER = {\n  pending: 'done',\n  fulfilled: 'partially',\n  error: 116,\n} as const;\n\n// ✅ Use readonly constant of narrowed type\nconst IDLE_ORDER = {\n  pending: 'idle',\n  fulfilled: true,\n  error: 'Shipping Error',\n} as const satisfies OrderStatus;\n```\n\n### Template Literal Types\n\nEmbrace template literal types as they allow you to create precise and type-safe string constructs by interpolating values. They are a powerful alternative to using the wide string type, providing better type safety.\n\nTemplate literal types constrain values known to TypeScript at compile time. They do not validate strings received at runtime.\n\nAdopting template literal types brings several advantages:\n\n- Prevent errors caused by typos or invalid strings.\n- Provide better type safety and autocompletion support.\n- Improve code maintainability and readability.\n\nTemplate literal types are useful in various practical scenarios, such as:\n\n- String Patterns - Use template literal types to enforce specific string patterns during type checking.\n\n  ```ts\n  // ❌ Avoid\n  const appVersion = '2.6';\n  // ✅ Use\n  type Version = `v${number}.${number}.${number}`;\n  const appVersion: Version = 'v2.6.1';\n  ```\n\n- API Endpoints - Use template literal types to restrict values to valid API routes.\n\n  ```ts\n  // ❌ Avoid\n  const userEndpoint = '/api/usersss'; // Type 'string' - Typo 'usersss': the route doesn't exist, leading to a runtime error.\n  // ✅ Use\n  type ApiRoute = 'users' | 'posts' | 'comments';\n  type ApiEndpoint = `/api/${ApiRoute}`; // Type ApiEndpoint = \"/api/users\" | \"/api/posts\" | \"/api/comments\"\n  const userEndpoint: ApiEndpoint = '/api/users';\n  ```\n\n- Internationalization Keys - Avoid relying on raw strings for translation keys, which can lead to typos and missing translations. Use template literal types to constrain their structure.\n\n  ```ts\n  // ❌ Avoid\n  const homeTitle = 'translation.homesss.title'; // Type 'string' - Typo 'homesss': the translation doesn't exist, leading to a runtime error.\n  // ✅ Use\n  type LocaleKeyPages = 'home' | 'about' | 'contact';\n  type TranslationKey = `translation.${LocaleKeyPages}.${string}`; // Type TranslationKey = `translation.home.${string}` | `translation.about.${string}` | `translation.contact.${string}`\n  const homeTitle: TranslationKey = 'translation.home.title';\n  ```\n\n- CSS Utilities - Avoid raw strings for color values, which can lead to invalid or non-existent colors. Use template literal types to enforce known color names and require custom values to start with `#`.\n\n  ```ts\n  // ❌ Avoid\n  const color = 'blue-450'; // Type 'string' - Color 'blue-450' doesn't exist, leading to a runtime error.\n  // ✅ Use\n  type BaseColor = 'blue' | 'red' | 'yellow' | 'gray';\n  type Variant = 50 | 100 | 200 | 300 | 400;\n  type Color = `${BaseColor}-${Variant}` | `#${string}`; // Type Color = \"blue-50\" | \"blue-100\" | \"blue-200\" ... | \"red-50\" | \"red-100\" ... | #${string}\n  const iconColor: Color = 'blue-400';\n  const customColor: Color = '#AD3128';\n  ```\n\n- Database queries - Avoid using raw strings for table or column names, which can lead to typos. Use template literal types to define valid table and column combinations.\n\n<!-- prettier-ignore-start -->\n```ts\n// ❌ Avoid\nconst query = 'SELECT name FROM usersss WHERE age > 30'; // Type 'string' - Typo 'usersss': table doesn't exist, leading to a runtime error.\n// ✅ Use\ntype Table = 'users' | 'posts' | 'comments';\ntype Column<TTableName extends Table> =\n  TTableName extends 'users' ? 'id' | 'name' | 'age' :\n  TTableName extends 'posts' ? 'id' | 'title' | 'content' :\n  TTableName extends 'comments' ? 'id' | 'postId' | 'text' :\n  never;\n\ntype Query<TTableName extends Table> = `SELECT ${Column<TTableName>} FROM ${TTableName} WHERE ${string}`;\nconst userQuery: Query<'users'> = 'SELECT name FROM users WHERE age > 30'; // Accepted by Query<'users'>\nconst invalidQuery: Query<'users'> = 'SELECT title FROM users WHERE age > 30'; // Error: 'title' is not a column in 'users' table.\n```\n<!-- prettier-ignore-end -->\n\n### Type any & unknown\n\nThe `any` type must not be used because it bypasses type checking and allows unsafe operations and assignments. This can mask serious programming errors.\n\nWhen dealing with ambiguous data, use `unknown`, which is the type-safe counterpart of `any`.  \nAnything can be assigned to `unknown`, but it must be narrowed before accessing its properties or assigning it to a more specific type.\n\n```ts\n// ❌ Avoid any\nconst foo: any = 'five';\nconst bar: number = foo; // no type error\n\n// ✅ Use unknown\nconst foo: unknown = 5;\nconst bar: number = foo; // type error - Type 'unknown' is not assignable to type 'number'\n\n// Narrow the type before dereferencing it using:\n// Type guard\nconst isNumber = (num: unknown): num is number => {\n  return typeof num === 'number';\n};\nif (!isNumber(foo)) {\n  throw Error(`API provided a fault value for field 'foo':${foo}. Should be a number!`);\n}\nconst bar: number = foo;\n```\n\n### Type & Non-nullability Assertions\n\nType assertions `user as User` and non-nullability assertions `user!.name` are unsafe. Both only silence the TypeScript compiler and increase the risk of crashing the application at runtime.  \nThey can only be used as an exception, such as a third-party library type mismatch, with a strong rationale for why they are introduced into the codebase.\n\n```ts\ntype User = { id: string; username: string; avatar: string | null };\n// ❌ Avoid type assertions\nconst user = { name: 'Nika' } as User;\n\n// ❌ Avoid non-nullability assertions\nconst getUsername = (user: User | null) => user!.username; // Runtime error when user is null\n```\n\n### Type Errors\n\nWhen a TypeScript error cannot be mitigated, use `@ts-expect-error` as a last resort to suppress it.\n\nThis directive notifies the compiler when the suppressed error no longer exists, ensuring errors are revisited once they’re obsolete, unlike `@ts-ignore`, which can silently linger even after the error is resolved.\n\n- Always use `@ts-expect-error` with a clear description explaining why it is necessary.\n- Avoid `@ts-ignore`, as it does not track suppressed errors.\n\n<Rule href=\"https://typescript-eslint.io/rules/ban-ts-comment/#allow-with-description\">{`'@typescript-eslint/ban-ts-comment': [\n  'error',\n  {\n    'ts-expect-error': 'allow-with-description'\n  },\n]`}","tagline":"Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types.","category":"data-analysis","tags":["agent-skill"],"author":"mkosir","verified":false,"attribution":{"status":"registry_indexed","statusLabel":"Registry indexed","shortLabel":"REGISTRY INDEXED","sourceLabel":"github fast track","sourceDetail":"mkosir/typescript-style-guide","creatorName":"mkosir","creatorUrl":"https://github.com/mkosir","sourceUrl":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types","indexedBy":"OpenAgentSkill community index","claimUrl":"https://www.openagentskill.com/skills/mkosir-typescript-types#claim-this-skill","claimCta":"Claim this skill","trustNote":"This listing was indexed from public sources and is not marked official until a maintainer claim is approved.","publicNote":"Attribution links to the public repository or creator profile. Creators can claim the listing to update ownership signals."},"stats":{"stars":784,"forks":37,"verified_installs":0,"successful_runs":0,"total_outcomes":0,"rating":0,"review_count":0,"quality_score":43.36},"quality":{"score":76,"tier":"strong","label":"Strong","summary":"Solid option that is likely worth shortlisting for production workflows.","signals":[{"label":"GitHub stars","value":"784","tone":"positive"},{"label":"Freshness","value":"11d ago","tone":"positive"},{"label":"Install ready","value":"Yes","tone":"positive"},{"label":"License","value":"MIT","tone":"neutral"}],"warnings":[]},"trust":{"version":"trust-score-v5","score":71,"base_score":79,"outcome_confidence":0,"tier":"review","label":"Sandbox only","summary":"Useful candidate with missing or mixed trust signals. Keep it in an isolated workspace until the outcome loop proves task fit.","recommendedAction":"Run only in a sandbox and compare close alternatives before using it for real work.","decision":{"install_policy":"human_review_before_install","auto_install_allowed":false,"human_review_required":true,"sandbox_first":true,"agent_action":"Compare alternatives before installing.","reasoning":["71/100 Trust Score v5","79/100 Trust Score v4 baseline","Needs more real agent outcomes before unattended install","Install path is available","Review before production"],"review_required_when":["The workspace contains production secrets, payments, private customer data, or irreversible actions.","The install command requests shell, network, credential, database, or broad filesystem access.","Outcome evidence is missing, recently failed, or required human review.","Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace"]},"dimensions":[{"id":"github_adoption","label":"GitHub adoption","score":76,"weight":0.13,"status":"info","detail":"784 GitHub stars"},{"id":"repo_activity","label":"Stars/forks activity","score":65,"weight":0.08,"status":"info","detail":"784 stars, 37 forks; issue activity unavailable in current metadata"},{"id":"maintenance","label":"Recent maintenance","score":100,"weight":0.14,"status":"pass","detail":"11d since push"},{"id":"license","label":"License clarity","score":86,"weight":0.09,"status":"pass","detail":"MIT"},{"id":"documentation","label":"README/SKILL.md completeness","score":76,"weight":0.14,"status":"info","detail":"Public metadata needs stronger README/SKILL.md context"},{"id":"dependency_risk","label":"Dependency/runtime risk","score":74,"weight":0.12,"status":"info","detail":"network or browser surface, database surface"},{"id":"installability","label":"Install availability","score":92,"weight":0.1,"status":"pass","detail":"npx skills add mkosir/typescript-style-guide --skill typescript-types"},{"id":"install_safety","label":"Install command safety","score":92,"weight":0.1,"status":"pass","detail":"standard package or runtime install path"},{"id":"permission_surface","label":"Permission surface","score":60,"weight":0.07,"status":"warn","detail":"filesystem or document access, network or browser access"},{"id":"repository","label":"Repository evidence","score":86,"weight":0.04,"status":"pass","detail":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types"},{"id":"review_status","label":"Review status","score":88,"weight":0.05,"status":"pass","detail":"AI review data available"},{"id":"agent_outcomes","label":"Agent Proven outcomes","score":54,"weight":0.13,"status":"info","detail":"No agent outcome data yet"}],"checks":[{"status":"info","label":"GitHub adoption","detail":"784 GitHub stars"},{"status":"info","label":"Stars/forks activity","detail":"784 stars, 37 forks; issue activity unavailable in current metadata"},{"status":"pass","label":"Recent maintenance","detail":"11d since push"},{"status":"pass","label":"License clarity","detail":"MIT"},{"status":"info","label":"README/SKILL.md completeness","detail":"Public metadata needs stronger README/SKILL.md context"},{"status":"info","label":"Dependency/runtime risk","detail":"network or browser surface, database surface"},{"status":"pass","label":"Install availability","detail":"npx skills add mkosir/typescript-style-guide --skill typescript-types"},{"status":"pass","label":"Install command safety","detail":"standard package or runtime install path"},{"status":"warn","label":"Permission surface","detail":"filesystem or document access, network or browser access"},{"status":"pass","label":"Repository evidence","detail":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types"},{"status":"pass","label":"Review status","detail":"AI review data available"},{"status":"info","label":"Agent Proven outcomes","detail":"No agent outcome data yet"},{"status":"warn","label":"Ownership","detail":"No approved owner claim yet"},{"status":"pass","label":"OpenAgentSkill usage","detail":"1 views, 0 install copies"},{"status":"info","label":"Agent outcomes","detail":"No agent outcome data yet"}],"strengths":["AI review approved","Install path is available","Repository evidence is available","Recently maintained repository","Meaningful GitHub adoption signal","Install command has no obvious high-risk pattern","Outcome loop is ready but needs first real agent run"],"warnings":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access","No real agent outcome reports yet","Human review required before unattended installation"],"evidence":{"stars":"784 GitHub stars","repoActivity":"784 stars, 37 forks","lastPushed":"11d since push","license":"MIT","repository":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types","install":"npx skills add mkosir/typescript-style-guide --skill typescript-types","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Usable metadata, review docs","agentOutcomes":"No agent outcome data yet","agentProvenScore":0,"outcomeConfidence":"0%","installPolicy":"human_review_before_install"},"installReadiness":{"ready":true,"command":"npx skills add mkosir/typescript-style-guide --skill typescript-types","policy":"human_review_before_install","label":"Human review before install","notes":["Install path is available","Repository evidence is available","License is declared","No Agent Proven outcome evidence yet","11d since push","Trust Score v5 requires review or sandbox-only use before install."]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"outcomeEvidence":{"total":0,"successes":0,"failures":0,"notRelevant":0,"successRate":null,"installAttempts":0,"riskBlocked":0,"setupRequired":0,"installSuccessRate":null,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"recentSuccessRate":null,"recentFailureRate":null,"uniqueAgents":0,"agentProvenScore":0,"agentProvenLabel":"Needs first agent run","lastOutcomeAt":null,"label":"No agent outcome data yet"},"autoInstall":{"allowed":false,"sandboxRequired":true,"policy":"human_review_before_install","reason":"Compare alternatives before installing."},"outcome_loop":{"version":"openagentskill-agent-outcome-v4","required_after_install":true,"endpoint":"/api/agent/outcome","method":"POST","event_id_source":"feedback.event_id, install_receipt.resolve_event_id, or decision_packet.outcome_feedback.event_id","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"required_fields":["event_id","skill_slug","task"],"quality_fields":["task_success","output_quality","error_type","human_review_required","used_in_production","workspace","evidence_url","time_to_useful_ms","source_version"],"ranking_inputs_updated":["Trust Score v5 outcome confidence","Agent Proven Score","Resolve ranking task-fit evidence","Skill detail machine-readable metadata","Outcome leaderboard"]},"agent_contract":{"suited_tasks":["data-analysis","agent-skill"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"install_command":"npx skills add mkosir/typescript-style-guide --skill typescript-types","trust_score":71,"trust_version":"trust-score-v5","risk_level":"medium","do_not_use_when":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace"],"before_install":["Read the audit page and machine-readable metadata.","Confirm the install command, license, and permission surface fit the workspace.","Get explicit human approval or choose an alternative before installing."],"after_run":["Report the outcome to /api/agent/outcome using the resolve event id.","Include output_quality, workspace, human_review_required, and evidence_url when available.","Re-resolve before broad production rollout."]},"bestFor":["data-analysis","agent-skill"],"doNotUseFor":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace"],"knownRisks":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"],"backward_compatible":{"trust_score_v4":{"version":"trust-score-v4","score":79,"tier":"strong","label":"Strong shortlist","summary":"Good trust signals with a few areas worth checking before rollout."}}},"trust_score_v5":{"version":"trust-score-v5","score":71,"base_score":79,"outcome_confidence":0,"tier":"review","label":"Sandbox only","summary":"Useful candidate with missing or mixed trust signals. Keep it in an isolated workspace until the outcome loop proves task fit.","recommendedAction":"Run only in a sandbox and compare close alternatives before using it for real work.","decision":{"install_policy":"human_review_before_install","auto_install_allowed":false,"human_review_required":true,"sandbox_first":true,"agent_action":"Compare alternatives before installing.","reasoning":["71/100 Trust Score v5","79/100 Trust Score v4 baseline","Needs more real agent outcomes before unattended install","Install path is available","Review before production"],"review_required_when":["The workspace contains production secrets, payments, private customer data, or irreversible actions.","The install command requests shell, network, credential, database, or broad filesystem access.","Outcome evidence is missing, recently failed, or required human review.","Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace"]},"dimensions":[{"id":"github_adoption","label":"GitHub adoption","score":76,"weight":0.13,"status":"info","detail":"784 GitHub stars"},{"id":"repo_activity","label":"Stars/forks activity","score":65,"weight":0.08,"status":"info","detail":"784 stars, 37 forks; issue activity unavailable in current metadata"},{"id":"maintenance","label":"Recent maintenance","score":100,"weight":0.14,"status":"pass","detail":"11d since push"},{"id":"license","label":"License clarity","score":86,"weight":0.09,"status":"pass","detail":"MIT"},{"id":"documentation","label":"README/SKILL.md completeness","score":76,"weight":0.14,"status":"info","detail":"Public metadata needs stronger README/SKILL.md context"},{"id":"dependency_risk","label":"Dependency/runtime risk","score":74,"weight":0.12,"status":"info","detail":"network or browser surface, database surface"},{"id":"installability","label":"Install availability","score":92,"weight":0.1,"status":"pass","detail":"npx skills add mkosir/typescript-style-guide --skill typescript-types"},{"id":"install_safety","label":"Install command safety","score":92,"weight":0.1,"status":"pass","detail":"standard package or runtime install path"},{"id":"permission_surface","label":"Permission surface","score":60,"weight":0.07,"status":"warn","detail":"filesystem or document access, network or browser access"},{"id":"repository","label":"Repository evidence","score":86,"weight":0.04,"status":"pass","detail":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types"},{"id":"review_status","label":"Review status","score":88,"weight":0.05,"status":"pass","detail":"AI review data available"},{"id":"agent_outcomes","label":"Agent Proven outcomes","score":54,"weight":0.13,"status":"info","detail":"No agent outcome data yet"}],"checks":[{"status":"info","label":"GitHub adoption","detail":"784 GitHub stars"},{"status":"info","label":"Stars/forks activity","detail":"784 stars, 37 forks; issue activity unavailable in current metadata"},{"status":"pass","label":"Recent maintenance","detail":"11d since push"},{"status":"pass","label":"License clarity","detail":"MIT"},{"status":"info","label":"README/SKILL.md completeness","detail":"Public metadata needs stronger README/SKILL.md context"},{"status":"info","label":"Dependency/runtime risk","detail":"network or browser surface, database surface"},{"status":"pass","label":"Install availability","detail":"npx skills add mkosir/typescript-style-guide --skill typescript-types"},{"status":"pass","label":"Install command safety","detail":"standard package or runtime install path"},{"status":"warn","label":"Permission surface","detail":"filesystem or document access, network or browser access"},{"status":"pass","label":"Repository evidence","detail":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types"},{"status":"pass","label":"Review status","detail":"AI review data available"},{"status":"info","label":"Agent Proven outcomes","detail":"No agent outcome data yet"},{"status":"warn","label":"Ownership","detail":"No approved owner claim yet"},{"status":"pass","label":"OpenAgentSkill usage","detail":"1 views, 0 install copies"},{"status":"info","label":"Agent outcomes","detail":"No agent outcome data yet"}],"strengths":["AI review approved","Install path is available","Repository evidence is available","Recently maintained repository","Meaningful GitHub adoption signal","Install command has no obvious high-risk pattern","Outcome loop is ready but needs first real agent run"],"warnings":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access","No real agent outcome reports yet","Human review required before unattended installation"],"evidence":{"stars":"784 GitHub stars","repoActivity":"784 stars, 37 forks","lastPushed":"11d since push","license":"MIT","repository":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types","install":"npx skills add mkosir/typescript-style-guide --skill typescript-types","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Usable metadata, review docs","agentOutcomes":"No agent outcome data yet","agentProvenScore":0,"outcomeConfidence":"0%","installPolicy":"human_review_before_install"},"installReadiness":{"ready":true,"command":"npx skills add mkosir/typescript-style-guide --skill typescript-types","policy":"human_review_before_install","label":"Human review before install","notes":["Install path is available","Repository evidence is available","License is declared","No Agent Proven outcome evidence yet","11d since push","Trust Score v5 requires review or sandbox-only use before install."]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"outcomeEvidence":{"total":0,"successes":0,"failures":0,"notRelevant":0,"successRate":null,"installAttempts":0,"riskBlocked":0,"setupRequired":0,"installSuccessRate":null,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"recentSuccessRate":null,"recentFailureRate":null,"uniqueAgents":0,"agentProvenScore":0,"agentProvenLabel":"Needs first agent run","lastOutcomeAt":null,"label":"No agent outcome data yet"},"autoInstall":{"allowed":false,"sandboxRequired":true,"policy":"human_review_before_install","reason":"Compare alternatives before installing."},"outcome_loop":{"version":"openagentskill-agent-outcome-v4","required_after_install":true,"endpoint":"/api/agent/outcome","method":"POST","event_id_source":"feedback.event_id, install_receipt.resolve_event_id, or decision_packet.outcome_feedback.event_id","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"required_fields":["event_id","skill_slug","task"],"quality_fields":["task_success","output_quality","error_type","human_review_required","used_in_production","workspace","evidence_url","time_to_useful_ms","source_version"],"ranking_inputs_updated":["Trust Score v5 outcome confidence","Agent Proven Score","Resolve ranking task-fit evidence","Skill detail machine-readable metadata","Outcome leaderboard"]},"agent_contract":{"suited_tasks":["data-analysis","agent-skill"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"install_command":"npx skills add mkosir/typescript-style-guide --skill typescript-types","trust_score":71,"trust_version":"trust-score-v5","risk_level":"medium","do_not_use_when":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace"],"before_install":["Read the audit page and machine-readable metadata.","Confirm the install command, license, and permission surface fit the workspace.","Get explicit human approval or choose an alternative before installing."],"after_run":["Report the outcome to /api/agent/outcome using the resolve event id.","Include output_quality, workspace, human_review_required, and evidence_url when available.","Re-resolve before broad production rollout."]},"bestFor":["data-analysis","agent-skill"],"doNotUseFor":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace"],"knownRisks":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"],"backward_compatible":{"trust_score_v4":{"version":"trust-score-v4","score":79,"tier":"strong","label":"Strong shortlist","summary":"Good trust signals with a few areas worth checking before rollout."}}},"trust_score_v4":{"version":"trust-score-v4","score":79,"tier":"strong","label":"Strong shortlist","summary":"Good trust signals with a few areas worth checking before rollout.","recommendedAction":"Test in a sandbox workflow and compare its install path with close alternatives.","dimensions":[{"id":"github_adoption","label":"GitHub adoption","score":76,"weight":0.13,"status":"info","detail":"784 GitHub stars"},{"id":"repo_activity","label":"Stars/forks activity","score":65,"weight":0.08,"status":"info","detail":"784 stars, 37 forks; issue activity unavailable in current metadata"},{"id":"maintenance","label":"Recent maintenance","score":100,"weight":0.14,"status":"pass","detail":"11d since push"},{"id":"license","label":"License clarity","score":86,"weight":0.09,"status":"pass","detail":"MIT"},{"id":"documentation","label":"README/SKILL.md completeness","score":76,"weight":0.14,"status":"info","detail":"Public metadata needs stronger README/SKILL.md context"},{"id":"dependency_risk","label":"Dependency/runtime risk","score":74,"weight":0.12,"status":"info","detail":"network or browser surface, database surface"},{"id":"installability","label":"Install availability","score":92,"weight":0.1,"status":"pass","detail":"npx skills add mkosir/typescript-style-guide --skill typescript-types"},{"id":"install_safety","label":"Install command safety","score":92,"weight":0.1,"status":"pass","detail":"standard package or runtime install path"},{"id":"permission_surface","label":"Permission surface","score":60,"weight":0.07,"status":"warn","detail":"filesystem or document access, network or browser access"},{"id":"repository","label":"Repository evidence","score":86,"weight":0.04,"status":"pass","detail":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types"},{"id":"review_status","label":"Review status","score":88,"weight":0.05,"status":"pass","detail":"AI review data available"},{"id":"agent_outcomes","label":"Agent Proven outcomes","score":54,"weight":0.13,"status":"info","detail":"No agent outcome data yet"}],"checks":[{"status":"info","label":"GitHub adoption","detail":"784 GitHub stars"},{"status":"info","label":"Stars/forks activity","detail":"784 stars, 37 forks; issue activity unavailable in current metadata"},{"status":"pass","label":"Recent maintenance","detail":"11d since push"},{"status":"pass","label":"License clarity","detail":"MIT"},{"status":"info","label":"README/SKILL.md completeness","detail":"Public metadata needs stronger README/SKILL.md context"},{"status":"info","label":"Dependency/runtime risk","detail":"network or browser surface, database surface"},{"status":"pass","label":"Install availability","detail":"npx skills add mkosir/typescript-style-guide --skill typescript-types"},{"status":"pass","label":"Install command safety","detail":"standard package or runtime install path"},{"status":"warn","label":"Permission surface","detail":"filesystem or document access, network or browser access"},{"status":"pass","label":"Repository evidence","detail":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types"},{"status":"pass","label":"Review status","detail":"AI review data available"},{"status":"info","label":"Agent Proven outcomes","detail":"No agent outcome data yet"},{"status":"warn","label":"Ownership","detail":"No approved owner claim yet"},{"status":"pass","label":"OpenAgentSkill usage","detail":"1 views, 0 install copies"},{"status":"info","label":"Agent outcomes","detail":"No agent outcome data yet"}],"strengths":["AI review approved","Install path is available","Repository evidence is available","Recently maintained repository","Meaningful GitHub adoption signal","Install command has no obvious high-risk pattern"],"warnings":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"],"evidence":{"stars":"784 GitHub stars","repoActivity":"784 stars, 37 forks","lastPushed":"11d since push","license":"MIT","repository":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types","install":"npx skills add mkosir/typescript-style-guide --skill typescript-types","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Usable metadata, review docs","agentOutcomes":"No agent outcome data yet"},"installReadiness":{"ready":true,"command":"npx skills add mkosir/typescript-style-guide --skill typescript-types","policy":"human_review_before_install","label":"Human review before install","notes":["Install path is available","Repository evidence is available","License is declared","No Agent Proven outcome evidence yet","11d since push"]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"outcomeEvidence":{"total":0,"successes":0,"failures":0,"notRelevant":0,"successRate":null,"installAttempts":0,"riskBlocked":0,"setupRequired":0,"installSuccessRate":null,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"recentSuccessRate":null,"recentFailureRate":null,"uniqueAgents":0,"agentProvenScore":0,"agentProvenLabel":"Needs first agent run","lastOutcomeAt":null,"label":"No agent outcome data yet"},"autoInstall":{"allowed":false,"sandboxRequired":true,"policy":"human_review_before_install","reason":"Human review or sandbox validation is required before automatic installation."},"bestFor":["data-analysis","agent-skill"],"doNotUseFor":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace"],"knownRisks":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"outcome_stats":null,"safety":{"score":63,"level":"review_before_install","label":"Review before install","safety_tier":{"tier":"reviewed","label":"Reviewed with permission notes","badge":"REVIEWED","summary":"Usable candidate, but the agent should surface permission and audit notes before installation.","recommended_action":"Require human approval before installing into a real workspace.","auto_install_policy":"review","reasons":["Permission surface may require sandboxing","63/100 agent safety score"]},"auto_install_allowed":false,"human_review_required":true,"blocked":false,"audit_risk":"needs_review","permission_hints":[{"id":"network","label":"Network access","reason":"Skill likely fetches remote pages, APIs, repositories, or external services.","severity":"medium"},{"id":"filesystem","label":"Filesystem access","reason":"Skill may read or write project files, documents, generated artifacts, or local workspace state.","severity":"medium"},{"id":"database","label":"Database access","reason":"Skill may inspect schemas, query databases, or work with persistent stores.","severity":"medium"}],"policy_warnings":["Permission surface may require sandboxing"],"constraints_applied":{"max_risk":"medium","needs_install_command":true,"min_stars":0}},"safety_gate":{"tier":"reviewed","label":"Reviewed with permission notes","badge":"REVIEWED","auto_install_policy":"review","auto_install_allowed":false,"blocked":false,"human_review_required":true,"recommended_action":"Require human approval before installing into a real workspace.","reasons":["Permission surface may require sandboxing","63/100 agent safety score"]},"eval":{"version":"openagentskill-skill-eval-v1","status":"review","score":76,"risk_level":"medium","decision":{"recommendation":"manual_review","reason":"Require human approval before installing into a real workspace.","auto_install_allowed":false,"policy":"review","human_review_required":true},"blockers":[],"warnings":["Trust score: Good trust signals with a few areas worth checking before rollout.","Audit score: Needs review","Agent safety gate: Usable candidate, but the agent should surface permission and audit notes before installation.","README/SKILL.md completeness: Public metadata needs stronger README/SKILL.md context","Permission surface: filesystem or document access, network or browser access","Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access"],"validation_plan":["Inspect repository, README/SKILL.md, license, and recent commits before production use.","Install in an isolated workspace or sandbox with no production secrets available.","Run the smallest representative task and record files touched, commands run, network access, and outputs.","Compare the selected skill against at least one alternative when the eval status is review or failed.","Promote only after the agent reports a successful verification result and unresolved warnings are accepted."],"checks":[{"id":"task_fit","label":"Task fit","status":"pass","score":84,"required_for_auto_install":true,"detail":"Task wording matches this skill metadata.","evidence":["Evaluate typescript-types before installing it in an agent workflow","data-analysis","Coding agents workflows; Claude Code teams; teams that value GitHub adoption signals"]},{"id":"install_path","label":"Install path","status":"pass","score":92,"required_for_auto_install":true,"detail":"Install handoff is available.","evidence":["npx skills add mkosir/typescript-style-guide --skill typescript-types"]},{"id":"install_safety","label":"Install command safety","status":"pass","score":92,"required_for_auto_install":true,"detail":"standard package or runtime install path","evidence":["npx skills add mkosir/typescript-style-guide --skill typescript-types"]},{"id":"trust_score","label":"Trust score","status":"warn","score":79,"required_for_auto_install":true,"detail":"Good trust signals with a few areas worth checking before rollout.","evidence":["Strong shortlist","784 GitHub stars","MIT"]},{"id":"audit_score","label":"Audit score","status":"warn","score":83,"required_for_auto_install":true,"detail":"Needs review","evidence":["Permission surface may require sandboxing"]},{"id":"agent_safety_gate","label":"Agent safety gate","status":"warn","score":63,"required_for_auto_install":true,"detail":"Usable candidate, but the agent should surface permission and audit notes before installation.","evidence":["Require human approval before installing into a real workspace.","Permission surface may require sandboxing"]},{"id":"readme_skillmd_completeness","label":"README/SKILL.md completeness","status":"warn","score":76,"required_for_auto_install":false,"detail":"Public metadata needs stronger README/SKILL.md context","evidence":["Usable metadata, review docs"]},{"id":"license_clarity","label":"License clarity","status":"pass","score":86,"required_for_auto_install":true,"detail":"MIT","evidence":["MIT"]},{"id":"recent_maintenance","label":"Recent maintenance","status":"pass","score":100,"required_for_auto_install":false,"detail":"11d since push","evidence":["11d since push"]},{"id":"permission_surface","label":"Permission surface","status":"warn","score":60,"required_for_auto_install":true,"detail":"filesystem or document access, network or browser access","evidence":["Network access: medium","Filesystem access: medium","Database access: medium"]},{"id":"alternatives","label":"Alternatives available","status":"info","score":55,"required_for_auto_install":false,"detail":"No close alternatives were found in the current shortlist.","evidence":[]}],"endpoints":{"web":"https://www.openagentskill.com/skills/mkosir-typescript-types/evals","api":"/api/agent/evals?slug=mkosir-typescript-types","text":"/api/agent/evals?slug=mkosir-typescript-types&format=text"}},"agent_readable_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"mkosir-typescript-types","name":"typescript-types","description":"Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types.","category":"data-analysis","url":"https://www.openagentskill.com/skills/mkosir-typescript-types","repository":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types","github_repo":"mkosir/typescript-style-guide"},"suited_tasks":["Coding agents workflows","Claude Code teams","teams that value GitHub adoption signals","Inspect source files","Explain architecture","Patch bugs and verify changes","Inspect repository metadata","Compare code changes"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add mkosir/typescript-style-guide --skill typescript-types","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add mkosir-typescript-types"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"typescript-types\" agent skill from https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"mkosir-typescript-types\",\"task\":\"Install typescript-types\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"typescript-types\" as a Claude Code skill from https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"mkosir-typescript-types\",\"task\":\"Install typescript-types\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"typescript-types\" from https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"mkosir-typescript-types\",\"task\":\"Install typescript-types\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/mkosir-typescript-types/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/mkosir-typescript-types"},"trust":{"score":79,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"784 GitHub stars","repoActivity":"784 stars, 37 forks","lastPushed":"11d since push","license":"MIT","repository":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types","install":"npx skills add mkosir/typescript-style-guide --skill typescript-types","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Usable metadata, review docs","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["data-analysis","agent-skill"],"known_risks":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":83,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"safety_gate":{"tier":"reviewed","label":"Reviewed with permission notes","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Require human approval before installing into a real workspace."},"quality":{"score":76,"label":"Strong"},"supply":{"track":"Coding and developer agents","scenario":"Coding agents","maintenance":"11d since push","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","high-compliance environments without internal security review","No major risk signals from current metadata","Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access","Production credentials, payments, or irreversible account changes without explicit human review"],"agent_contract":{"task_input":"Use typescript-types in an agent workflow","recommended_action":"Require human approval before installing into a real workspace.","install_policy":"review","minimum_review_before_use":["Trust: 79/100 Strong shortlist","Audit: 83/100 Needs review","Safety: 63/100 Review before install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"mkosir-typescript-types (typescript-types)","install_command":"npx skills add mkosir/typescript-style-guide --skill typescript-types","risk_summary":"Needs review; Reviewed with permission notes; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"mkosir-typescript-types","task":"Use typescript-types in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/mkosir-typescript-types","api":"https://www.openagentskill.com/api/agent/skills/mkosir-typescript-types","audit":"https://www.openagentskill.com/skills/mkosir-typescript-types/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=mkosir-typescript-types&task=Use%20typescript-types%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20typescript-types%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20typescript-types%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/mkosir-typescript-types/install","manifest":"https://www.openagentskill.com/api/registry/manifest/mkosir-typescript-types"}},"machine_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"mkosir-typescript-types","name":"typescript-types","description":"Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types.","category":"data-analysis","url":"https://www.openagentskill.com/skills/mkosir-typescript-types","repository":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types","github_repo":"mkosir/typescript-style-guide"},"suited_tasks":["Coding agents workflows","Claude Code teams","teams that value GitHub adoption signals","Inspect source files","Explain architecture","Patch bugs and verify changes","Inspect repository metadata","Compare code changes"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add mkosir/typescript-style-guide --skill typescript-types","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add mkosir-typescript-types"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"typescript-types\" agent skill from https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"mkosir-typescript-types\",\"task\":\"Install typescript-types\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"typescript-types\" as a Claude Code skill from https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"mkosir-typescript-types\",\"task\":\"Install typescript-types\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"typescript-types\" from https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"mkosir-typescript-types\",\"task\":\"Install typescript-types\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/mkosir-typescript-types/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/mkosir-typescript-types"},"trust":{"score":79,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"784 GitHub stars","repoActivity":"784 stars, 37 forks","lastPushed":"11d since push","license":"MIT","repository":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types","install":"npx skills add mkosir/typescript-style-guide --skill typescript-types","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Usable metadata, review docs","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["data-analysis","agent-skill"],"known_risks":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":83,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"safety_gate":{"tier":"reviewed","label":"Reviewed with permission notes","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Require human approval before installing into a real workspace."},"quality":{"score":76,"label":"Strong"},"supply":{"track":"Coding and developer agents","scenario":"Coding agents","maintenance":"11d since push","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","high-compliance environments without internal security review","No major risk signals from current metadata","Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access","Production credentials, payments, or irreversible account changes without explicit human review"],"agent_contract":{"task_input":"Use typescript-types in an agent workflow","recommended_action":"Require human approval before installing into a real workspace.","install_policy":"review","minimum_review_before_use":["Trust: 79/100 Strong shortlist","Audit: 83/100 Needs review","Safety: 63/100 Review before install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"mkosir-typescript-types (typescript-types)","install_command":"npx skills add mkosir/typescript-style-guide --skill typescript-types","risk_summary":"Needs review; Reviewed with permission notes; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"mkosir-typescript-types","task":"Use typescript-types in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/mkosir-typescript-types","api":"https://www.openagentskill.com/api/agent/skills/mkosir-typescript-types","audit":"https://www.openagentskill.com/skills/mkosir-typescript-types/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=mkosir-typescript-types&task=Use%20typescript-types%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20typescript-types%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20typescript-types%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/mkosir-typescript-types/install","manifest":"https://www.openagentskill.com/api/registry/manifest/mkosir-typescript-types"}},"supply_profile":{"track":{"slug":"coding","label":"Coding and developer agents","shortLabel":"Coding","description":"Code review, repo analysis, testing, CI, GitHub, DevOps, and developer workflow skills."},"scenario":{"label":"Coding agents","description":"I need a coding agent that can understand a repository, edit code, and review pull requests.","useCases":[{"slug":"coding-agents","title":"Coding agents"},{"slug":"github-automation","title":"GitHub automation"},{"slug":"local-desktop","title":"Local desktop"}]},"applicableAgents":["Claude Code","CLI","Codex","Cursor"],"install":{"ready":true,"command":"npx skills add mkosir/typescript-style-guide --skill typescript-types","primaryTarget":"CLI","targetCount":4},"githubQuality":{"stars":784,"starsLabel":"784","forks":37,"license":"MIT","qualityScore":76,"trustScore":79,"auditScore":83},"maintenance":{"status":"fresh","label":"11d since push","daysSincePush":11,"lastPushedAt":"2026-08-27T11:53:42+00:00"},"risk":{"level":"needs_review","label":"Needs review","requiresReview":true,"notes":["Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access","Needs review"]},"coverageTags":["Coding","Coding agents","data-analysis","agent-skill"]},"audit":{"audit_score":83,"risk_level":"needs_review","risk_label":"Needs review","quality_score":76,"trust_score":79,"maintenance_score":100,"security_score":84,"install_score":92,"warnings":["Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"quality_signals":{"model":"v2","star_score":20.26,"usage_score":0,"review_score":5.1,"metadata_score":3,"freshness_score":15},"platforms":["Claude Code"],"use_cases":[{"slug":"coding-agents","title":"Coding agents","url":"https://www.openagentskill.com/use-cases/coding-agents"},{"slug":"github-automation","title":"GitHub automation","url":"https://www.openagentskill.com/use-cases/github-automation"},{"slug":"local-desktop","title":"Local desktop","url":"https://www.openagentskill.com/use-cases/local-desktop"},{"slug":"browser-automation","title":"Browser automation","url":"https://www.openagentskill.com/use-cases/browser-automation"}],"stacks":[{"slug":"coding-review-agent","title":"Coding review agent","url":"https://www.openagentskill.com/collections/coding-review-agent"},{"slug":"content-growth-agent","title":"Content growth agent","url":"https://www.openagentskill.com/collections/content-growth-agent"},{"slug":"browser-qa-agent","title":"Browser QA agent","url":"https://www.openagentskill.com/collections/browser-qa-agent"}],"install":"npx skills add mkosir/typescript-style-guide --skill typescript-types","install_targets":[{"id":"openagentskill-cli","label":"CLI","title":"OpenAgentSkill CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add mkosir-typescript-types","description":"Resolve policy, run the source installer safely, and report a verified install receipt.","copyLabel":"Copy command"},{"id":"codex","label":"Codex","title":"Codex install prompt","kind":"agent-prompt","value":"Install the \"typescript-types\" agent skill from https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"mkosir-typescript-types\",\"task\":\"Install typescript-types\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Give Codex a repo-aware install prompt when the skill is not available through a local CLI.","copyLabel":"Copy prompt"},{"id":"claude-code","label":"Claude Code","title":"Claude Code skill prompt","kind":"agent-prompt","value":"Add \"typescript-types\" as a Claude Code skill from https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"mkosir-typescript-types\",\"task\":\"Install typescript-types\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this prompt to ask Claude Code to add the skill and explain the local activation steps.","copyLabel":"Copy prompt"},{"id":"cursor","label":"Cursor","title":"Cursor rule prompt","kind":"agent-prompt","value":"Turn \"typescript-types\" from https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Apply, review, and explain TypeScript type conventions. Use automatically for tasks involving inference, readonly data, type-safe constants, template literal types, any and unknown, assertions, type errors, type definitions, arrays, type imports, or generated service types. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"mkosir-typescript-types\",\"task\":\"Install typescript-types\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this when installing as Cursor project rules or reusable agent instructions.","copyLabel":"Copy prompt"}],"repository":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types","github_repo":"mkosir/typescript-style-guide","version":"1.0.0","license":"MIT","urls":{"web":"https://www.openagentskill.com/skills/mkosir-typescript-types","repository":"https://github.com/mkosir/typescript-style-guide/tree/main/skills/typescript-types","api":"/api/agent/skills/mkosir-typescript-types","install_api":"/api/skills/mkosir-typescript-types/install"},"meta":{"created_at":"2026-09-02T18:27:06.347685+00:00","updated_at":"2026-09-02T18:27:06.439069+00:00","agent_friendly":true}}