> ## Documentation Index
> Fetch the complete documentation index at: https://docs.case.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Create custom skill

> Create an org-scoped custom skill. The skill will be searchable via /skills/resolve alongside curated skills.



## OpenAPI

````yaml /openapi.json post /skills
openapi: 3.1.0
info:
  title: Case.dev API
  description: >-
    The AI-native platform for legal technology. Build smarter legal
    applications with our suite of AI-powered APIs.
  version: 1.0.0
  contact:
    name: Case.dev Support
    email: support@casemark.com
    url: https://case.dev
  license:
    name: Proprietary
    url: https://case.dev/terms
servers:
  - url: https://api.case.dev
    description: Production
security:
  - bearerAuth: []
tags:
  - name: Vaults
    description: Secure document storage with semantic search and GraphRAG
  - name: Memory
    description: >-
      Persistent memory for AI agents with semantic search and 12 generic
      indexed tag fields
  - name: OCR
    description: Extract text from PDFs, images, and scanned documents
  - name: Voice
    description: Audio transcription and text-to-speech
  - name: LLMs
    description: Access 40+ language models through a unified API
  - name: Search
    description: Web search and AI answers
  - name: Mail
    description: Managed inboxes for agent email workflows
  - name: Media
    description: Transcript retrieval and captioned media clip generation
  - name: Legal
    description: Legal research tools including citation verification
  - name: Privilege
    description: Privilege detection for e-discovery and litigation workflows
  - name: Compute
    description: Serverless GPU and CPU infrastructure
  - name: Format
    description: Document formatting and template rendering (MD/JSON to PDF/DOCX)
  - name: SuperDoc
    description: Document conversion and template automation
  - name: Webhooks
    description: Webhook endpoint management
  - name: System
    description: Public system metadata and discovery endpoints
  - name: Usage
    description: Usage reporting and webhook subscriptions
  - name: Database
    description: Serverless PostgreSQL databases with instant branching
  - name: Translation
    description: Language detection and translation for multilingual legal workflows
  - name: Skills
    description: Search and read legal AI skills for agents
  - name: Agents
    description: >-
      Create, manage, and execute AI agents with tool access, sandbox
      environments, and async run workflows
  - name: Matters
    description: Matter-native legal workspaces and orchestration primitives
  - name: Connectors
    description: Import and export between provider folders (Google Drive) and vaults
  - name: Applications Projects
    description: Web application project management
  - name: Applications Deployments
    description: Web application deployment management
  - name: Applications Domains
    description: Custom domain configuration for applications
  - name: Applications Env Vars
    description: Environment variable management for applications
paths:
  /skills:
    post:
      tags:
        - Skills
      summary: Create custom skill
      description: >-
        Create an org-scoped custom skill. The skill will be searchable via
        /skills/resolve alongside curated skills.
      operationId: createCustomSkill
      requestBody:
        description: Skill definition
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - name
                - content
              properties:
                name:
                  type: string
                  description: Skill name
                  minLength: 1
                  maxLength: 256
                slug:
                  type: string
                  description: URL-safe slug. Auto-generated from name if omitted.
                  maxLength: 128
                summary:
                  type: string
                  description: Brief description (1-2 sentences)
                  maxLength: 1000
                content:
                  type: string
                  description: Full skill content in markdown
                  minLength: 1
                  maxLength: 65536
                tags:
                  type: array
                  items:
                    type: string
                  description: Tags for categorization and search boosting
                metadata:
                  type: object
                  description: Arbitrary metadata (author, license, etc.)
                files:
                  type: array
                  description: >-
                    Optional bundled companion files installed alongside the
                    skill as <slug>/<path> in sandbox skill directories.
                  maxItems: 100
                  items:
                    type: object
                    required:
                      - path
                      - content
                    properties:
                      path:
                        type: string
                        description: >-
                          Relative path inside the skill directory. SKILL.md is
                          reserved for the root skill content.
                        maxLength: 512
                      content:
                        type: string
                        maxLength: 65536
                      name:
                        type: string
                        maxLength: 256
                      summary:
                        type: string
                        maxLength: 1000
                      tags:
                        type: array
                        items:
                          type: string
                      metadata:
                        type: object
                      contentType:
                        type: string
                        maxLength: 100
      responses:
        '201':
          description: Skill created
          content:
            application/json:
              schema:
                type: object
                properties:
                  slug:
                    type: string
                  name:
                    type: string
                  summary:
                    type: string
                    nullable: true
                  content:
                    type: string
                  tags:
                    type: array
                    items:
                      type: string
                  metadata:
                    type: object
                  bundle:
                    type: object
                    nullable: true
                  version:
                    type: integer
                  created_at:
                    type: string
                    format: date-time
        '400':
          description: Invalid input
        '401':
          description: Authentication required
        '403':
          description: Insufficient permissions
        '409':
          description: Slug already exists in this org
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API Key
      description: API key starting with `sk_case_`

````