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import chalk from 'chalk'
import * as React from 'react'
import type { CommandResultDisplay } from '../../commands.js'
import {
ModelPicker,
type ModelPickerDiscoveryState,
} from '../../components/ModelPicker.js'
import { COMMON_HELP_ARGS, COMMON_INFO_ARGS } from '../../constants/xml.js'
import {
clearDiscoveryCache,
getCachedModels,
isCacheStale,
parseDurationString,
} from '../../integrations/discoveryCache.js'
import type { ModelCatalogConfig } from '../../integrations/descriptors.js'
import {
discoverModelsForRoute,
getDiscoveryCacheKey,
} from '../../integrations/discoveryService.js'
import {
getRouteDescriptor,
resolveRouteCredentialValue,
resolveActiveRouteIdFromEnv,
} from '../../integrations/routeMetadata.js'
import {
type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
logEvent,
} from '../../services/analytics/index.js'
import {
getAdditionalModelOptionsCacheScope,
resolveProviderRequest,
} from '../../services/api/providerConfig.js'
import type { AppState } from '../../state/AppState.js'
import { useAppState, useSetAppState } from '../../state/AppState.js'
import type { LocalJSXCommandCall } from '../../types/command.js'
import type { EffortLevel } from '../../utils/effort.js'
import { isBilledAsExtraUsage } from '../../utils/extraUsage.js'
import {
clearFastModeCooldown,
isFastModeAvailable,
isFastModeEnabled,
isFastModeSupportedByModel,
} from '../../utils/fastMode.js'
import { MODEL_ALIASES } from '../../utils/model/aliases.js'
import {
checkOpus1mAccess,
checkSonnet1mAccess,
} from '../../utils/model/check1mAccess.js'
import {
parseSwitchProfileValue,
type ModelOption,
} from '../../utils/model/modelOptions.js'
import { buildRouteCatalogModelOptions, mergeRouteCatalogEntries } from '../../utils/model/routeCatalogOptions.js'
import { discoverOpenAICompatibleModelOptions } from '../../utils/model/openaiModelDiscovery.js'
import {
getDefaultMainLoopModelSetting,
isOpus1mMergeEnabled,
renderDefaultModelSetting,
} from '../../utils/model/model.js'
import { isModelAllowed } from '../../utils/model/modelAllowlist.js'
import { validateModel } from '../../utils/model/validateModel.js'
import { getLocalOpenAICompatibleProviderLabel } from '../../utils/providerDiscovery.js'
import { isEssentialTrafficOnly } from '../../utils/privacyLevel.js'
import { parseCustomHeadersEnv } from '../../utils/providerCustomHeaders.js'
import {
getActiveOpenAIModelOptionsCache,
getActiveProviderProfile,
setActiveOpenAIModelOptionsCache,
setActiveProviderProfile,
} from '../../utils/providerProfiles.js'
type ModelDiscoveryContext =
| {
kind: 'descriptor'
autoRefresh: boolean
canRefresh: boolean
discoveryState?: ModelPickerDiscoveryState
optionsOverride: ModelOption[]
routeId: string
routeDefaultModel?: string
routeLabel: string
}
| {
kind: 'legacy-openai'
autoRefresh: boolean
canRefresh: boolean
discoveryState?: ModelPickerDiscoveryState
routeLabel: string
}
function renderModelLabel(model: string | null): string {
const rendered = renderDefaultModelSetting(
model ?? getDefaultMainLoopModelSetting(),
)
return model === null ? `${rendered} (default)` : rendered
}
function haveSameModelOptions(left: ModelOption[], right: ModelOption[]): boolean {
if (left.length !== right.length) {
return false
}
return left.every((option, index) => {
const other = right[index]
return (
other !== undefined &&
option.value === other.value &&
option.label === other.label &&
option.description === other.description &&
option.descriptionForModel === other.descriptionForModel
)
})
}
function getActiveRouteId(): string | null {
const activeProfile = getActiveProviderProfile()
return resolveActiveRouteIdFromEnv(process.env, {
activeProfileProvider: activeProfile?.provider,
})
}
function getOpenAIDiscoveryRequestOptions(routeId?: string | null): {
apiKey?: string
baseUrl?: string
headers?: Record<string, string>
} {
const request = resolveProviderRequest({
model: process.env.OPENAI_MODEL,
baseUrl: process.env.OPENAI_BASE_URL,
})
return {
apiKey: resolveRouteCredentialValue({
routeId,
baseUrl: request.baseUrl,
processEnv: process.env,
}),
baseUrl: request.baseUrl,
headers: parseCustomHeadersEnv(process.env.ANTHROPIC_CUSTOM_HEADERS),
}
}
export function shouldAutoRefreshRouteCatalog(options: {
catalog: ModelCatalogConfig
hasCachedModels: boolean
staticEntryCount: number
stale: boolean
}): boolean {
const needsInitialDiscovery =
!options.hasCachedModels && options.staticEntryCount === 0
switch (options.catalog.discoveryRefreshMode) {
case 'manual':
return needsInitialDiscovery
case 'on-open':
return true
case 'startup':
return needsInitialDiscovery
case 'background-if-stale':
default:
return options.stale || !options.hasCachedModels
}
}
async function loadDescriptorDiscoveryContext(
routeId: string,
): Promise<ModelDiscoveryContext | null> {
const descriptor = getRouteDescriptor(routeId)
const catalog = descriptor?.catalog
if (!descriptor || !catalog) {
return null
}
if (routeId === 'custom') {
return null
}
const routeLabel = descriptor.label
const routeDefaultModel =
'defaultModel' in descriptor ? descriptor.defaultModel : undefined
const staticEntries = catalog.models ?? []
const trafficRestricted = isEssentialTrafficOnly()
const canRefresh = Boolean(
catalog.discovery && catalog.allowManualRefresh && !trafficRestricted,
)
if (!catalog.discovery) {
if (staticEntries.length === 0) {
return null
}
return {
kind: 'descriptor',
autoRefresh: false,
canRefresh,
optionsOverride: buildRouteCatalogModelOptions(
routeLabel,
staticEntries,
routeDefaultModel,
),
routeId,
routeDefaultModel,
routeLabel,
}
}
const ttlMs = parseDurationString(catalog.discoveryCacheTtl ?? 0)
const discoveryOptions = getOpenAIDiscoveryRequestOptions(routeId)
const cacheKey = getDiscoveryCacheKey(routeId, discoveryOptions)
const cached = await getCachedModels(cacheKey, ttlMs, { includeStale: true })
const stale = await isCacheStale(cacheKey, ttlMs)
const autoRefresh = shouldAutoRefreshRouteCatalog({
catalog,
hasCachedModels: cached !== null,
staticEntryCount: staticEntries.length,
stale,
}) && !trafficRestricted
const mergedEntries = mergeRouteCatalogEntries(
staticEntries,
cached?.models ?? [],
)
let discoveryState: ModelPickerDiscoveryState | undefined
if (cached?.error && mergedEntries.length > 0) {
discoveryState = {
message: `Showing cached ${routeLabel} models. Last refresh failed: ${cached.error.message}`,
tone: 'warning',
}
} else if (autoRefresh) {
discoveryState = {
message: `Checking ${routeLabel} models…`,
tone: 'info',
}
}
return {
kind: 'descriptor',
autoRefresh,
canRefresh,
discoveryState,
optionsOverride: buildRouteCatalogModelOptions(
routeLabel,
mergedEntries,
routeDefaultModel,
),
routeId,
routeDefaultModel,
routeLabel,
}
}
async function loadModelDiscoveryContext(): Promise<ModelDiscoveryContext | null> {
const routeId = getActiveRouteId()
if (routeId && routeId !== 'anthropic') {
const descriptorContext = await loadDescriptorDiscoveryContext(routeId)
if (descriptorContext) {
return descriptorContext
}
}
if (getAdditionalModelOptionsCacheScope()?.startsWith('openai:')) {
const { baseUrl } = getOpenAIDiscoveryRequestOptions()
return {
kind: 'legacy-openai',
autoRefresh: !isEssentialTrafficOnly(),
canRefresh: !isEssentialTrafficOnly(),
routeLabel: getLocalOpenAICompatibleProviderLabel(baseUrl),
}
}
return null
}
function descriptorDiscoveryStateForResult(options: {
changed: boolean
manual: boolean
result: Awaited<ReturnType<typeof discoverModelsForRoute>>
routeLabel: string
}): ModelPickerDiscoveryState {
const { changed, manual, result, routeLabel } = options
if (!result) {
return {
message: `Could not load model metadata for ${routeLabel}.`,
tone: 'error',
}
}
if (result.source === 'stale-cache' && result.error) {
return {
message: `Refresh failed for ${routeLabel}. Showing cached models: ${result.error.message}`,
tone: 'warning',
}
}
if (result.source === 'error' && result.error) {
return {
message: `Could not refresh ${routeLabel} models: ${result.error.message}`,
tone: 'error',
}
}
if (!changed) {
return {
message: manual
? `No changes found for ${routeLabel}.`
: `${routeLabel} models are up to date.`,
tone: 'success',
}
}
return {
message: manual
? `Updated ${routeLabel} models.`
: `Loaded fresh ${routeLabel} models.`,
tone: 'success',
}
}
function legacyDiscoveryStateForOptions(options: {
changed: boolean
failed?: boolean
manual: boolean
routeLabel: string
}): ModelPickerDiscoveryState {
const { changed, failed, manual, routeLabel } = options
if (failed) {
return {
message: `Could not refresh ${routeLabel} models.`,
tone: 'warning',
}
}
if (!changed) {
return {
message: manual
? `No changes found for ${routeLabel}.`
: `${routeLabel} models are up to date.`,
tone: 'success',
}
}
return {
message: manual
? `Updated ${routeLabel} models.`
: `Loaded fresh ${routeLabel} models.`,
tone: 'success',
}
}
function ModelPickerWrapper({
discoveryContext,
onDone,
}: {
discoveryContext: ModelDiscoveryContext | null
onDone: (result?: string, options?: { display?: CommandResultDisplay }) => void
}) {
const mainLoopModel = useAppState((s: AppState) => s.mainLoopModel)
const mainLoopModelForSession = useAppState(
(s: AppState) => s.mainLoopModelForSession,
)
const isFastMode = useAppState((s: AppState) => s.fastMode)
const setAppState = useSetAppState()
const [optionsOverride, setOptionsOverride] = React.useState<ModelOption[] | undefined>(
discoveryContext?.kind === 'descriptor'
? discoveryContext.optionsOverride
: undefined,
)
const [discoveryState, setDiscoveryState] =
React.useState<ModelPickerDiscoveryState | undefined>(
discoveryContext?.discoveryState,
)
const handleCancel = () => {
logEvent('tengu_model_command_menu', {
action: 'cancel' as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
})
onDone(`Kept model as ${chalk.bold(renderModelLabel(mainLoopModel))}`, {
display: 'system',
})
}
const handleSelect = (model: string | null, effort: EffortLevel | undefined) => {
// Cross-profile switch from /model picker (issue #1119). The composite
// value carries the profile id; activate that profile first so subsequent
// requests use the new OPENAI_BASE_URL / OPENAI_API_KEY, then drop down to
// the regular model-switch path with the bare model string.
const switchTarget = parseSwitchProfileValue(model)
if (switchTarget) {
const activated = setActiveProviderProfile(switchTarget.profileId)
if (!activated) {
onDone(`Could not activate provider profile "${switchTarget.profileId}".`, {
display: 'system',
})
return
}
logEvent('tengu_model_command_menu', {
action: 'switch_profile' as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
from_model: String(mainLoopModel) as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
to_model: String(switchTarget.model) as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
})
setAppState(prev => ({
...prev,
mainLoopModel: switchTarget.model,
mainLoopModelForSession: null,
}))
onDone(
`Switched to ${chalk.bold(activated.name)} · model ${chalk.bold(switchTarget.model)}`,
)
return
}
logEvent('tengu_model_command_menu', {
action: String(model) as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
from_model: String(mainLoopModel) as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
to_model: String(model) as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
})
setAppState(prev => ({
...prev,
mainLoopModel: model,
mainLoopModelForSession: null,
}))
let message = `Set model to ${chalk.bold(renderModelLabel(model))}`
if (effort !== undefined) {
message += ` with ${chalk.bold(effort)} effort`
}
let wasFastModeToggledOn: boolean | undefined
if (isFastModeEnabled()) {
clearFastModeCooldown()
if (!isFastModeSupportedByModel(model) && isFastMode) {
setAppState(prev => ({
...prev,
fastMode: false,
}))
wasFastModeToggledOn = false
} else if (
isFastModeSupportedByModel(model) &&
isFastModeAvailable() &&
isFastMode
) {
message += ' · Fast mode ON'
wasFastModeToggledOn = true
}
}
if (
isBilledAsExtraUsage(
model,
wasFastModeToggledOn === true,
isOpus1mMergeEnabled(),
)
) {
message += ' · Billed as extra usage'
}
if (wasFastModeToggledOn === false) {
message += ' · Fast mode OFF'
}
onDone(message)
}
async function refreshAvailableModels(manual: boolean): Promise<void> {
if (!discoveryContext) {
return
}
setDiscoveryState({
message: manual
? `Refreshing ${discoveryContext.routeLabel} models…`
: `Checking ${discoveryContext.routeLabel} models…`,
tone: 'info',
})
if (discoveryContext.kind === 'descriptor') {
if (manual) {
await clearDiscoveryCache(
getDiscoveryCacheKey(
discoveryContext.routeId,
getOpenAIDiscoveryRequestOptions(discoveryContext.routeId),
),
)
}
const result = await discoverModelsForRoute(
discoveryContext.routeId,
{
...getOpenAIDiscoveryRequestOptions(discoveryContext.routeId),
forceRefresh: true,
},
)
const nextOptions = buildRouteCatalogModelOptions(
discoveryContext.routeLabel,
result?.models ?? [],
discoveryContext.routeDefaultModel,
)
const changed = !haveSameModelOptions(optionsOverride ?? [], nextOptions)
setOptionsOverride(nextOptions)
setDiscoveryState(
descriptorDiscoveryStateForResult({
changed,
manual,
result,
routeLabel: discoveryContext.routeLabel,
}),
)
return
}
try {
const discoveredOptions = await discoverOpenAICompatibleModelOptions()
const currentOptions = getActiveOpenAIModelOptionsCache()
const changed =
discoveredOptions.length > 0 &&
!haveSameModelOptions(currentOptions, discoveredOptions)
if (discoveredOptions.length > 0 && changed) {
setActiveOpenAIModelOptionsCache(discoveredOptions)
}
setDiscoveryState(
legacyDiscoveryStateForOptions({
changed,
manual,
routeLabel: discoveryContext.routeLabel,
}),
)
} catch {
setDiscoveryState(
legacyDiscoveryStateForOptions({
changed: false,
failed: true,
manual,
routeLabel: discoveryContext.routeLabel,
}),
)
}
}
React.useEffect(() => {
if (!discoveryContext?.autoRefresh) {
return
}
void refreshAvailableModels(false)
// We only want the initial auto-refresh for the loaded context.
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [])
return (
<ModelPicker
initial={mainLoopModel}
sessionModel={mainLoopModelForSession}
onSelect={handleSelect}
onCancel={handleCancel}
isStandaloneCommand
showFastModeNotice={
isFastModeEnabled() &&
isFastMode &&
isFastModeSupportedByModel(mainLoopModel) &&
isFastModeAvailable()
}
optionsOverride={optionsOverride}
discoveryState={discoveryState}
onRefresh={
discoveryContext?.canRefresh
? () => {
void refreshAvailableModels(true)
}
: undefined
}
/>
)
}
function SetModelAndClose({
args,
onDone,
}: {
args: string
onDone: (result?: string, options?: { display?: CommandResultDisplay }) => void
}) {
const isFastMode = useAppState((s: AppState) => s.fastMode)
const setAppState = useSetAppState()
const model = args === 'default' ? null : args
React.useEffect(() => {
async function handleModelChange(): Promise<void> {
if (model && !isModelAllowed(model)) {
onDone(
`Model '${model}' is not available. Your organization restricts model selection.`,
{
display: 'system',
},
)
return
}
if (model && isOpus1mUnavailable(model)) {
onDone(
'Opus 4.6 with 1M context is not available for your account. Learn more: https://code.claude.com/docs/en/model-config#extended-context-with-1m',
{
display: 'system',
},
)
return
}
if (model && isSonnet1mUnavailable(model)) {
onDone(
'Sonnet 4.6 with 1M context is not available for your account. Learn more: https://code.claude.com/docs/en/model-config#extended-context-with-1m',
{
display: 'system',
},
)
return
}
if (!model) {
setModel(null)
return
}
if (isKnownAlias(model)) {
setModel(model)
return
}
try {
const { valid, error } = await validateModel(model)
if (valid) {
setModel(model)
} else {
onDone(error || `Model '${model}' not found`, {
display: 'system',
})
}
} catch (error) {
onDone(`Failed to validate model: ${(error as Error).message}`, {
display: 'system',
})
}
}
function setModel(modelValue: string | null): void {
setAppState(prev => ({
...prev,
mainLoopModel: modelValue,
mainLoopModelForSession: null,
}))
let message = `Set model to ${chalk.bold(renderModelLabel(modelValue))}`
let wasFastModeToggledOn: boolean | undefined
if (isFastModeEnabled()) {
clearFastModeCooldown()
if (!isFastModeSupportedByModel(modelValue) && isFastMode) {
setAppState(prev => ({
...prev,
fastMode: false,
}))
wasFastModeToggledOn = false
} else if (isFastModeSupportedByModel(modelValue) && isFastMode) {
message += ' · Fast mode ON'
wasFastModeToggledOn = true
}
}
if (
isBilledAsExtraUsage(
modelValue,
wasFastModeToggledOn === true,
isOpus1mMergeEnabled(),
)
) {
message += ' · Billed as extra usage'
}
if (wasFastModeToggledOn === false) {
message += ' · Fast mode OFF'
}
onDone(message)
}
void handleModelChange()
}, [isFastMode, model, onDone, setAppState])
return null
}
function isKnownAlias(model: string): boolean {
return (MODEL_ALIASES as readonly string[]).includes(
model.toLowerCase().trim(),
)
}
function isOpus1mUnavailable(model: string): boolean {
const normalized = model.toLowerCase()
return (
!checkOpus1mAccess() &&
!isOpus1mMergeEnabled() &&
normalized.includes('opus') &&
normalized.includes('[1m]')
)
}
function isSonnet1mUnavailable(model: string): boolean {
const normalized = model.toLowerCase()
return (
!checkSonnet1mAccess() &&
(normalized.includes('sonnet[1m]') ||
normalized.includes('sonnet-4-6[1m]'))
)
}
function ShowModelAndClose({
onDone,
}: {
onDone: (result?: string, options?: { display?: CommandResultDisplay }) => void
}) {
const mainLoopModel = useAppState((s: AppState) => s.mainLoopModel)
const mainLoopModelForSession = useAppState(
(s: AppState) => s.mainLoopModelForSession,
)
const effortValue = useAppState((s: AppState) => s.effortValue)
const displayModel = renderModelLabel(mainLoopModel)
const effortInfo =
effortValue !== undefined ? ` (effort: ${effortValue})` : ''
if (mainLoopModelForSession) {
onDone(
`Current model: ${chalk.bold(renderModelLabel(mainLoopModelForSession))} (session override from plan mode)\nBase model: ${displayModel}${effortInfo}`,
)
} else {
onDone(`Current model: ${displayModel}${effortInfo}`)
}
return null
}
async function refreshModelsAndSummarize(): Promise<string> {
const discoveryContext = await loadModelDiscoveryContext()
if (!discoveryContext) {
return 'The active provider does not support runtime model discovery refresh.'
}
if (!discoveryContext.canRefresh) {
return isEssentialTrafficOnly()
? 'Model discovery refresh is disabled while nonessential traffic is disabled.'
: `${discoveryContext.routeLabel} uses a static model catalog; no refresh is needed.`
}
if (discoveryContext.kind === 'descriptor') {
await clearDiscoveryCache(
getDiscoveryCacheKey(
discoveryContext.routeId,
getOpenAIDiscoveryRequestOptions(discoveryContext.routeId),
),
)
const result = await discoverModelsForRoute(discoveryContext.routeId, {
...getOpenAIDiscoveryRequestOptions(discoveryContext.routeId),
forceRefresh: true,
})
const nextOptions = buildRouteCatalogModelOptions(
discoveryContext.routeLabel,
result?.models ?? [],
discoveryContext.routeDefaultModel,
)
const changed = !haveSameModelOptions(
discoveryContext.optionsOverride,
nextOptions,
)
return descriptorDiscoveryStateForResult({
changed,
manual: true,
result,
routeLabel: discoveryContext.routeLabel,
}).message
}
try {
const discoveredOptions = await discoverOpenAICompatibleModelOptions()
const currentOptions = getActiveOpenAIModelOptionsCache()
const changed =
discoveredOptions.length > 0 &&
!haveSameModelOptions(currentOptions, discoveredOptions)
if (discoveredOptions.length > 0 && changed) {
setActiveOpenAIModelOptionsCache(discoveredOptions)
}
return legacyDiscoveryStateForOptions({
changed,
manual: true,
routeLabel: discoveryContext.routeLabel,
}).message
} catch {
return legacyDiscoveryStateForOptions({
changed: false,
failed: true,
manual: true,
routeLabel: discoveryContext.routeLabel,
}).message
}
}
export const call: LocalJSXCommandCall = async (onDone, _context, args) => {
const trimmedArgs = args?.trim() || ''
if (COMMON_INFO_ARGS.includes(trimmedArgs)) {
logEvent('tengu_model_command_inline_help', {
args: trimmedArgs as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
})
return <ShowModelAndClose onDone={onDone} />
}
if (COMMON_HELP_ARGS.includes(trimmedArgs)) {
onDone(
'Run /model to open the model selection menu, /model refresh to reload provider models, or /model [modelName] to set the model.',
{
display: 'system',
},
)
return
}
if (trimmedArgs === 'refresh') {
onDone(await refreshModelsAndSummarize(), {
display: 'system',
})
return
}
if (trimmedArgs) {
logEvent('tengu_model_command_inline', {
args: trimmedArgs as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
})
return <SetModelAndClose args={trimmedArgs} onDone={onDone} />
}
const discoveryContext = await loadModelDiscoveryContext()
return <ModelPickerWrapper discoveryContext={discoveryContext} onDone={onDone} />
}