dev README

packages/web/src/features/search/README.md

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+# `/search`
+
+Code search interface for Sourcebot.
+
+## Overview
+
+The search feature parses user queries into an intermediate representation (IR), which is then executed against Zoekt's gRPC search backend. Query parsing uses Lezer for syntax analysis.
+
+## Architecture
+
+**Query Flow:**
+1. User query string → Lezer parser (via `@sourcebot/query-language`)
+2. Lezer syntax tree → Query IR (Zoekt gRPC `Q` proto)
+3. Query IR → Zoekt backend → Search results
+
+## Files
+
+- **`index.ts`** - Public API exports for the search feature, including search functions and type definitions.
+
+- **`parser.ts`** - Parses query strings into the query IR using the Lezer parser from `@sourcebot/query-language`.
+
+- **`ir.ts`** - Defines the `QueryIR` type (internally the Zoekt gRPC `Q` proto) and provides utilities for traversing and querying the IR tree structure.
+
+- **`types.ts`** - TypeScript types and Zod schemas for search requests, responses, file matches, stats, and streaming results.
+
+- **`searchApi.ts`** - High-level search API that handles authentication, permission filtering, and orchestrates the query parsing and Zoekt backend calls.
+
+- **`zoektSearcher.ts`** - Low-level interface to the Zoekt gRPC backend. Handles request construction, streaming search, response transformation, and repository metadata resolution.
+
+- **`fileSourceApi.ts`** - Retrieves full file contents by executing a specialized search query against Zoekt for a specific file path.
+