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fix: detect lost collection and return error instead of empty results on search #281

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Merged
zc277584121 merged 1 commit into from
Mar 11, 2026
Merged

fix: detect lost collection and return error instead of empty results on search #281

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12 changes: 12 additions & 0 deletions packages/mcp/src/handlers.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -528,6 +528,18 @@ export class ToolHandlers {
console.log(`[SEARCH] ✅ Search completed! Found ${searchResults.length} results using ${embeddingProvider.getProvider()} embeddings`);

if (searchResults.length === 0) {
// Check if collection was lost (indexed locally but missing in Milvus)
if (isIndexed && !isIndexing) {
const collectionName = this.context.getCollectionName(absolutePath);
const hasCollection = await this.context.getVectorDatabase().hasCollection(collectionName);
if (!hasCollection) {
return {
content: [{ type: "text", text: `Error: Index data for '${absolutePath}' has been lost (collection not found in Milvus). Please re-index using index_codebase with force=true.` }],
isError: true
};
}
}

let noResultsMessage = `No results found for query: "${query}" in codebase '${absolutePath}'`;
if (isIndexing) {
noResultsMessage += `\n\nNote: This codebase is still being indexed. Try searching again after indexing completes, or the query may not match any indexed content.`;
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