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unifiedSuggestions.ts
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import Fuse from 'fuse.js'
import { basename } from 'path'
import type { SuggestionItem } from 'src/components/PromptInput/PromptInputFooterSuggestions.js'
import { generateFileSuggestions } from 'src/hooks/fileSuggestions.js'
import type { ServerResource } from 'src/services/mcp/types.js'
import { getAgentColor } from 'src/tools/AgentTool/agentColorManager.js'
import type { AgentDefinition } from 'src/tools/AgentTool/loadAgentsDir.js'
import { truncateToWidth } from 'src/utils/format.js'
import { logError } from 'src/utils/log.js'
import type { Theme } from 'src/utils/theme.js'
type FileSuggestionSource = {
type: 'file'
displayText: string
description?: string
path: string
filename: string
score?: number
}
type McpResourceSuggestionSource = {
type: 'mcp_resource'
displayText: string
description: string
server: string
uri: string
name: string
}
type AgentSuggestionSource = {
type: 'agent'
displayText: string
description: string
agentType: string
color?: keyof Theme
}
type SuggestionSource =
| FileSuggestionSource
| McpResourceSuggestionSource
| AgentSuggestionSource
/**
* Creates a unified suggestion item from a source
*/
function createSuggestionFromSource(source: SuggestionSource): SuggestionItem {
switch (source.type) {
case 'file':
return {
id: `file-${source.path}`,
displayText: source.displayText,
description: source.description,
}
case 'mcp_resource':
return {
id: `mcp-resource-${source.server}__${source.uri}`,
displayText: source.displayText,
description: source.description,
}
case 'agent':
return {
id: `agent-${source.agentType}`,
displayText: source.displayText,
description: source.description,
color: source.color,
}
}
}
const MAX_UNIFIED_SUGGESTIONS = 15
const DESCRIPTION_MAX_LENGTH = 60
function truncateDescription(description: string): string {
return truncateToWidth(description, DESCRIPTION_MAX_LENGTH)
}
function generateAgentSuggestions(
agents: AgentDefinition[],
query: string,
showOnEmpty = false,
): AgentSuggestionSource[] {
if (!query && !showOnEmpty) {
return []
}
try {
const agentSources: AgentSuggestionSource[] = agents.map(agent => ({
type: 'agent' as const,
displayText: `${agent.agentType} (agent)`,
description: truncateDescription(agent.whenToUse),
agentType: agent.agentType,
color: getAgentColor(agent.agentType),
}))
if (!query) {
return agentSources
}
const queryLower = query.toLowerCase()
return agentSources.filter(
agent =>
agent.agentType.toLowerCase().includes(queryLower) ||
agent.displayText.toLowerCase().includes(queryLower),
)
} catch (error) {
logError(error as Error)
return []
}
}
export async function generateUnifiedSuggestions(
query: string,
mcpResources: Record<string, ServerResource[]>,
agents: AgentDefinition[],
showOnEmpty = false,
): Promise<SuggestionItem[]> {
if (!query && !showOnEmpty) {
return []
}
const [fileSuggestions, agentSources] = await Promise.all([
generateFileSuggestions(query, showOnEmpty),
Promise.resolve(generateAgentSuggestions(agents, query, showOnEmpty)),
])
const fileSources: FileSuggestionSource[] = fileSuggestions.map(
suggestion => ({
type: 'file' as const,
displayText: suggestion.displayText,
description: suggestion.description,
path: suggestion.displayText, // Use displayText as path for files
filename: basename(suggestion.displayText),
score: (suggestion.metadata as { score?: number } | undefined)?.score,
}),
)
const mcpSources: McpResourceSuggestionSource[] = Object.values(mcpResources)
.flat()
.map(resource => ({
type: 'mcp_resource' as const,
displayText: `${resource.server}:${resource.uri}`,
description: truncateDescription(
resource.description || resource.name || resource.uri,
),
server: resource.server,
uri: resource.uri,
name: resource.name || resource.uri,
}))
if (!query) {
const allSources = [...fileSources, ...mcpSources, ...agentSources]
return allSources
.slice(0, MAX_UNIFIED_SUGGESTIONS)
.map(createSuggestionFromSource)
}
const nonFileSources: SuggestionSource[] = [...mcpSources, ...agentSources]
// Score non-file sources with Fuse.js
// File sources are already scored by Rust/nucleo
type ScoredSource = { source: SuggestionSource; score: number }
const scoredResults: ScoredSource[] = []
// Add file sources with their nucleo scores (already 0-1, lower is better)
for (const fileSource of fileSources) {
scoredResults.push({
source: fileSource,
score: fileSource.score ?? 0.5, // Default to middle score if missing
})
}
// Score non-file sources with Fuse.js and add them
if (nonFileSources.length > 0) {
const fuse = new Fuse(nonFileSources, {
includeScore: true,
threshold: 0.6, // Allow more matches through, we'll sort by score
keys: [
{ name: 'displayText', weight: 2 },
{ name: 'name', weight: 3 },
{ name: 'server', weight: 1 },
{ name: 'description', weight: 1 },
{ name: 'agentType', weight: 3 },
],
})
const fuseResults = fuse.search(query, { limit: MAX_UNIFIED_SUGGESTIONS })
for (const result of fuseResults) {
scoredResults.push({
source: result.item,
score: result.score ?? 0.5,
})
}
}
// Sort all results by score (lower is better) and return top results
scoredResults.sort((a, b) => a.score - b.score)
return scoredResults
.slice(0, MAX_UNIFIED_SUGGESTIONS)
.map(r => r.source)
.map(createSuggestionFromSource)
}