Agent-skills-standard nestjs-documentation

Automate Swagger/OpenAPI documentation and standardize API response schemas in NestJS. Use when generating OpenAPI specs, documenting paginated or generic responses, configuring the Nest CLI Swagger plugin, or publishing versioned API docs. (triggers: main.ts, **/*.dto.ts, DocumentBuilder, SwaggerModule, ApiProperty, ApiResponse)

install
source · Clone the upstream repo
git clone https://github.com/HoangNguyen0403/agent-skills-standard
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/HoangNguyen0403/agent-skills-standard "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/nestjs/nestjs-documentation" ~/.claude/skills/hoangnguyen0403-agent-skills-standard-nestjs-documentation && rm -rf "$T"
manifest: skills/nestjs/nestjs-documentation/SKILL.md
source content

OpenAPI & Documentation

Priority: P2 (MAINTENANCE)

Workflow

  1. Enable Swagger plugin in
    nest-cli.json
    to auto-generate
    @ApiProperty
    from DTOs.
  2. Annotate controllers with
    @ApiTags
    ,
    @ApiResponse
    , and auth decorators.
  3. Create generic wrappers for paginated and polymorphic responses.
  4. Generate separate docs for public vs internal audiences.

Setup

See implementation examples for

nest-cli.json
plugin config and Swagger bootstrap.

Response Documentation

  • Strictness: Every controller method must
    @ApiResponse({ status: 200, type: UserDto })
    .
  • Generic Wrappers: Define
    ApiPaginatedResponse<T>
    decorators using
    ApiExtraModels
    +
    getSchemaPath()
    to handle generics properly.

Advanced Patterns

  • Polymorphism: Use
    @ApiExtraModels
    and
    getSchemaPath
    for
    oneOf
    /
    anyOf
    union types.
  • File Uploads: Use
    @ApiConsumes('multipart/form-data')
    with explicit
    @ApiBody
    schema.
  • Authentication: Use
    @ApiBearerAuth()
    or
    @ApiSecurity('api-key')
    matching
    DocumentBuilder
    config.
  • Enums: Force named enums:
    @ApiProperty({ enum: MyEnum, enumName: 'MyEnum' })
    .

Operation Grouping

  • Tags: Mandatory
    @ApiTags('domains')
    on every Controller.
  • Multiple Docs: Generate separate docs for different audiences (Public vs Internal).

See implementation examples

Anti-Patterns

  • No missing @ApiResponse: Every controller method must declare its response type and status code.
  • No /docs in production: Disable Swagger in production to prevent API schema exposure.
  • No manual @ApiProperty everywhere: Use Nest CLI Swagger plugin to auto-generate from DTOs.