Swadhin Biswas feat: implement mervelas cli engine, built-in tools, and reactive UI · 4/3/2026
0358986
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import type { Command } from '../commands.js'
import type { LocalCommandCall } from '../types/command.js'
import {
canUserConfigureAdvisor,
isValidAdvisorModel,
modelSupportsAdvisor,
} from '../utils/advisor.js'
import {
getDefaultMainLoopModelSetting,
normalizeModelStringForAPI,
parseUserSpecifiedModel,
} from '../utils/model/model.js'
import { validateModel } from '../utils/model/validateModel.js'
import { updateSettingsForSource } from '../utils/settings/settings.js'
const call: LocalCommandCall = async (args, context) => {
const arg = args.trim().toLowerCase()
const baseModel = parseUserSpecifiedModel(
context.getAppState().mainLoopModel ?? getDefaultMainLoopModelSetting(),
)
if (!arg) {
const current = context.getAppState().advisorModel
if (!current) {
return {
type: 'text',
value:
'Advisor: not set\nUse "/advisor <model>" to enable (e.g. "/advisor opus").',
}
}
if (!modelSupportsAdvisor(baseModel)) {
return {
type: 'text',
value: `Advisor: ${current} (inactive)\nThe current model (${baseModel}) does not support advisors.`,
}
}
return {
type: 'text',
value: `Advisor: ${current}\nUse "/advisor unset" to disable or "/advisor <model>" to change.`,
}
}
if (arg === 'unset' || arg === 'off') {
const prev = context.getAppState().advisorModel
context.setAppState(s => {
if (s.advisorModel === undefined) return s
return { ...s, advisorModel: undefined }
})
updateSettingsForSource('userSettings', { advisorModel: undefined })
return {
type: 'text',
value: prev
? `Advisor disabled (was ${prev}).`
: 'Advisor already unset.',
}
}
const normalizedModel = normalizeModelStringForAPI(arg)
const resolvedModel = parseUserSpecifiedModel(arg)
const { valid, error } = await validateModel(resolvedModel)
if (!valid) {
return {
type: 'text',
value: error
? `Invalid advisor model: ${error}`
: `Unknown model: ${arg} (${resolvedModel})`,
}
}
if (!isValidAdvisorModel(resolvedModel)) {
return {
type: 'text',
value: `The model ${arg} (${resolvedModel}) cannot be used as an advisor`,
}
}
context.setAppState(s => {
if (s.advisorModel === normalizedModel) return s
return { ...s, advisorModel: normalizedModel }
})
updateSettingsForSource('userSettings', { advisorModel: normalizedModel })
if (!modelSupportsAdvisor(baseModel)) {
return {
type: 'text',
value: `Advisor set to ${normalizedModel}.\nNote: Your current model (${baseModel}) does not support advisors. Switch to a supported model to use the advisor.`,
}
}
return {
type: 'text',
value: `Advisor set to ${normalizedModel}.`,
}
}
const advisor = {
type: 'local',
name: 'advisor',
description: 'Configure the advisor model',
argumentHint: '[<model>|off]',
isEnabled: () => canUserConfigureAdvisor(),
get isHidden() {
return !canUserConfigureAdvisor()
},
supportsNonInteractive: true,
load: () => Promise.resolve({ call }),
} satisfies Command
export default advisor