代码语义搜索工具

glob "**/chat*"                                      → 12 files. None are it (it's called use-chat.ts).
grep "stream.*hook"                                  → 0 files.
grep "chat"                                          → too many results. Try reading a few...
read packages/react/src/use-chat.ts                  → Found it. What does it import?
read packages/ai/src/ui/process-ui-message-stream.ts → Now I have context.

yomu search "streaming chat hooks"

## packages/react/src/use-chat.ts
Imports: @ai-sdk/provider-utils, @ai-sdk/ui-utils
Siblings: UseChatOptions [type_def], UseChatHelpers [type_def]

1. useChat [hook] — 58:210 (similarity: 0.85)
export function useChat({ api, ...options }: UseChatOptions): UseChatHelpers {
  ...full function body...
}

## packages/rsc/src/streamable-value/use-streamable-value.ts
2. useStreamableValue [hook] — 12:45 (similarity: 0.72)
...

## examples/ai-e2e-next/.../chat-context.tsx
3. useSharedChatContext [hook] — 8:22 (similarity: 0.68)
...

brew install thkt/tap/yomu

cargo build --release

$ yomu --json status
{"files":42,"chunks":187,"embedded_chunks":187,"embeddable_chunks":187,"embed_percentage":100,"references":156,"last_indexed":"2025-03-29 01:23:45"}

yomu search --from src/query/mod.rs           # files similar to this file
yomu search --from src/query/mod.rs:rerank    # files similar to this function
yomu search --from src/query/mod.rs "filter"  # hybrid: similar to file + FTS on "filter"

$ yomu impact "packages/ai/src/ui/ui-messages.ts" --symbol UIMessage --depth 2

## Impact analysis: `packages/ai/src/ui/ui-messages.ts`

### Direct symbol references
- packages/ai/src/ui/process-ui-message-stream.ts
- packages/react/src/use-chat.ts
  ...34 files

### All transitive dependents
#### Depth 1
- packages/ai/src/ui/process-ui-message-stream.ts
  ...37 files
#### Depth 2
- packages/react/src/use-chat.ts
  ...18 files

Total: 55 dependent file(s)

{
  "target": "src/storage.rs",
  "in_index": true,
  "dependents": [
    {
      "file_path": "src/indexer.rs",
      "depth": 1,
      "references": [
        { "ref_kind": "named", "via_symbol": "Db" },
        { "ref_kind": "named", "via_symbol": "open_db" }
      ]
    },
    {
      "file_path": "src/main.rs",
      "depth": 2,
      "references": []
    }
  ],
  "symbol_refs": [],
  "total": 2
}

Source files → tree-sitter AST → Semantic chunks → Local embeddings (Ruri v3) → Hybrid search

git config --local core.hooksPath .githooks

cargo nextest run --features test-support                 # all tests (test-support stubs the embedding model so `index` runs without it; install: cargo install cargo-nextest --locked)
cargo clippy --all-targets --all-features -- -D warnings  # lint (matches CI)
cargo fmt -- --check                                      # format check

src/
├── main.rs              CLI entry point (clap)
├── lib.rs               Crate root, public API
├── config.rs            Runtime configuration
├── modernbert.rs        ModernBERT model (mlx backend)
├── tools/               Application facade — orchestrates indexer, query, storage per command
├── indexer/
│   ├── mod.rs           Orchestration: incremental index, embed budget
│   ├── chunker/         tree-sitter AST → semantic chunks
│   ├── embedder.rs      Local embedding (ModernBERT/Ruri v3 via mlx-rs or candle)
│   └── walker.rs        File discovery, .gitignore filtering
├── resolver.rs          Import path resolution (tsconfig aliases, index.ts probing)
├── query/               Hybrid search + IDF reranking
└── storage/
    ├── mod.rs           Schema, CRUD, types
    ├── search.rs        Vector similarity, name matching, FTS5
    ├── embed.rs         Embedding storage, vec_chunks
    └── graph.rs         Import graph traversal, dependents, siblings