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@apeira/plugin-roleplay

Character Card based roleplay for Apeira agents.

Supports text-only, single-character Character Card V1, V2, and V3 cards, including greetings, character prompts, example dialogue, and CCv3 character book substitutions.

Install

pnpm add @apeira/plugin-roleplay

Usage

import { createAgent } from '@apeira/core'
import { responses } from '@apeira/core/responses'
import { roleplay } from '@apeira/plugin-roleplay'

const agent = createAgent({
  initialState: {
    userName: 'Alice',
  },
  instructions: '',
  plugins: [
    roleplay({
      card,
      greetingIndex: 0,
    }),
  ],
  runner: responses({
    apiKey: process.env.OPENAI_API_KEY,
    baseURL: 'https://api.openai.com/v1/',
    model: 'gpt-5.5',
  }),
})

Pass an already-parsed character card object. Loading cards from PNG, JSON, or CHARX files is left to the application.

Use empty agent instructions to preserve the prompt behavior defined by the character card.

API

roleplay(options)

Option	Type	Default	Description
card	CharacterCardV1 | CharacterCardV2 | CharacterCardV3	—	Parsed character card
greetingIndex	number	0	0 selects first_mes; positive values select alternate_greetings[index - 1]

Invalid greeting indices fall back to first_mes. The greeting is added only when starting with empty conversation history and is restored after agent.reset().

Set state.userName to control . It defaults to User.

Limitations

• Text only
• Single character
• Character lorebooks and decorators are not supported yet
• RisuAI-specific scripts and extension behavior are not supported