# Packs Sdk > Use when working with a prompt and set of tools that defines a specific skill this agent provides. - Skill: `tomevault-io/packs-sdk` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/packs-sdk` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/packs-sdk/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/packs-sdk --- # Interface: Skill A prompt and set of tools that defines a specific skill this agent provides. ## Properties ### description > **description**: `string` Description of what this skill does. *** ### displayName > **displayName**: `string` Display name shown to users for this skill. *** ### models? > `optional` **models**: [`SkillModelConfiguration`](SkillModelConfiguration.md)[] The LLM model(s) to use for this skill. Specify an array of SkillModelConfiguration objects. If not specified, Superhuman Go will select a default model. If multiple models are specified, Superhuman Go will select the best available model based on the user's workspace settings. *** ### name > **name**: `string` Stable identifier for the skill. *** ### prompt > **prompt**: `string` The prompt/instructions that define the skill's behavior. *** ### tools > **tools**: `Tool`[] List of tools that this skill can use. When used in [PackDefinitionBuilder.addSkill](../classes/PackDefinitionBuilder.md#addskill), this field is required. When omitted from [PackDefinitionBuilder.setChatSkill](../classes/PackDefinitionBuilder.md#setchatskill), the following defaults are applied at runtime: - [ToolType.Pack](../enumerations/ToolType.md#pack) — the pack's own formulas (always included) - [ToolType.Knowledge](../enumerations/ToolType.md#knowledge) — search over the pack's sync table data (included when the pack defines sync tables) --- > Source: [coda/packs-sdk](https://github.com/coda/packs-sdk) — distributed by [TomeVault](https://tomevault.io).