Letta · Schema

SkillSchema

Skill schema for agent files. Skills are folders of instructions, scripts, and resources that agents can load. Either files (with SKILL.md) or source_url must be provided: - files with SKILL.md: inline skill content - source_url: reference to resolve later (e.g., 'letta:slack') - both: inline content with provenance tracking

AIAgentsStateful AgentsMemoryMemGPTContinual LearningMCPMulti-AgentRAGOpen Source

Properties

Name	Type	Description
name	string	Skill name, also serves as unique identifier (e.g., 'slack', 'pdf')
files	object	Skill files as path -> content mapping. Must include 'SKILL.md' key if provided.
source_url	object	Source URL for skill resolution (e.g., 'letta:slack', 'anthropic:pdf', 'owner/repo/path')

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/SkillSchema",
  "title": "SkillSchema",
  "properties": {
    "name": {
      "type": "string",
      "title": "Name",
      "description": "Skill name, also serves as unique identifier (e.g., 'slack', 'pdf')"
    },
    "files": {
      "anyOf": [
        {
          "additionalProperties": {
            "type": "string"
          },
          "type": "object"
        },
        {
          "type": "null"
        }
      ],
      "title": "Files",
      "description": "Skill files as path -> content mapping. Must include 'SKILL.md' key if provided."
    },
    "source_url": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Source Url",
      "description": "Source URL for skill resolution (e.g., 'letta:slack', 'anthropic:pdf', 'owner/repo/path')"
    }
  },
  "type": "object",
  "required": [
    "name"
  ],
  "description": "Skill schema for agent files.\n\nSkills are folders of instructions, scripts, and resources that agents can load.\nEither files (with SKILL.md) or source_url must be provided:\n- files with SKILL.md: inline skill content\n- source_url: reference to resolve later (e.g., 'letta:slack')\n- both: inline content with provenance tracking"
}