Odel

Deprecated. Deprecated by the publisher: Merged into repomap. Use io.github.SylphxAI/repomap (npm @sylphx/repomap).

Try instead
MCP server: One MCP server.Codebase MemoryRun by its publisher: served from their own domain, namespace checked by the registry.8% chance this is malicious. Assessed by AI, which can make mistakes.Creates or changes data. Assessed by AI, which can make mistakes.External: Runs on its publisher’s own infrastructure; Odel lists it.Free to use.MCP server: One MCP server.GitHub6% chance this is malicious. Assessed by AI, which can make mistakes.Creates or changes data. Assessed by AI, which can make mistakes.External: Runs on its publisher’s own infrastructure; Odel lists it.Free to use.MCP server: One MCP server.Serena MCP: the IDE for your agentRun by its publisher: served from their own domain, namespace checked by the registry.5% chance this is malicious. Assessed by AI, which can make mistakes.Creates or changes data. Assessed by AI, which can make mistakes.External: Runs on its publisher’s own infrastructure; Odel lists it.Free to use.
MCP server: One MCP server.

Locus

@sylphxaiRun by its publisher: served from their own domain, namespace checked by the registry.MCP server · External

Locus — the exact code chunk for the job: local BM25 search for agents.

Code searchv0.6.4MITTypeScript
Freeno charge per call
How to install

Runs on your machine from its package; the steps are below.

What it does

  1. Reads
  2. Writes
  3. High impact

At most: only reads or looks up information.

What it costs

Free

Odel charges nothing per call. The publisher may charge for its own service.

Runs locally over stdio

This server isn't hosted — your MCP client launches it from a package registry. Use one of the commands below, or drop the config into your client (e.g. Claude Desktop).

npm@sylphx/locusv0.6.4

Run

npx -y @sylphx/locus

MCP client config

{
  "mcpServers": {
    "locus": {
      "command": "npx",
      "args": [
        "-y",
        "@sylphx/locus"
      ]
    }
  }
}
README3 min read

Locus → now part of repomap

Locus has merged into repomap, a map of your codebase for AI agents. It combines code graph, hybrid search (Locus's BM25, now on tree-sitter AST chunks), call paths, change impact and an interactive graph UI in one Rust binary. It runs locally, needs no API key, and is MIT licensed.

bash
npx -y @sylphx/repomap setup

@sylphx/locus 1.x and @sylphx/coderag 1.x are thin aliases of @sylphx/repomap, so existing configs (npx -y @sylphx/locus --root=…, codebase_search) keep working. New development happens in SylphxAI/repomap. The rest of this README documents Locus 0.x.

Locus 0.x (archived)

The exact code chunk for the job

Locus is local code search for coding agents. It indexes the repository on the machine, ranks chunks with BM25, and returns the path, line range, symbol, score, and chunk text.

No API key. No vector database. No Docker. The default transport is stdio.

bash
npx -y @sylphx/locus --root=/absolute/path/to/project

Locus does not search the process working directory. Pass --root, set LOCUS_ROOT, or pass root on the tool call. A tool root wins, then the launch --root, then LOCUS_ROOT. CODERAG_ROOT still works when LOCUS_ROOT is unset.

Claude Code:

bash
claude mcp add locus -- npx -y @sylphx/locus --root=/absolute/path/to/project

Codex:

bash
codex mcp add locus -- npx -y @sylphx/locus --root=/absolute/path/to/project

Tools

ToolUse it whenYou get
codebase_searchYou can name words that appear in the codeRanked chunks. Filters apply before the limit.
find_relatedYou already have a file and a lineOther chunks that share its tokens
json
{
  "query": "authenticate request",
  "limit": 5,
  "file_extensions": ["ts"],
  "path_filter": "src/auth",
  "exclude_paths": ["src/auth/legacy"]
}

login does not match authenticate. Ranking is lexical. Search for the words the code uses.

What is indexed

.ts .tsx .js .jsx .mjs .cjs .rs .md .py .go

Skipped path segments, by exact name: node_modules, dist, target, .git. This is not gitignore. Files larger than 1,048,576 bytes are skipped. New indexes are written to .locus/rust-index.json and .locus/file-hashes.json. Locus still reads .coderag/ when .locus/rust-index.json is absent. Do not commit either directory.

A line that looks like a symbol starts a chunk. Other files stay one chunk. The patterns are regular expressions, not a syntax tree. Symbol chunks.

Defaults that stay boring

  • limit defaults to 10 and must be an integer from 1 to 100.
  • include_content defaults to true. false returns locators only.
  • There is no auto, fast, or quality search mode.
  • Each call refreshes the local index. Unchanged files are a cache hit. That refresh mode is not a search profile you select.
  • HTTP exists only when MCP_TRANSPORT=http. Agents should use stdio.

Install surfaces

SurfaceWhere
Claude Codeclaude mcp add locus -- npx -y @sylphx/locus --root=/absolute/path/to/project
Codexcodex mcp add locus -- npx -y @sylphx/locus --root=/absolute/path/to/project
CursormcpServers in .cursor/mcp.json or ~/.cursor/mcp.json
VS Codeservers in .vscode/mcp.json (${workspaceFolder} is expanded)
Other MCP clientsmcpServers in .mcp.json, with an absolute --root

Published natives: @sylphx/locus-darwin-arm64, @sylphx/locus-darwin-x64, @sylphx/locus-linux-arm64-gnu, @sylphx/locus-linux-x64-gnu. Windows is not a published target.

npx -y @sylphx/locus doctor prints the server version and whether locus-cli was found.

Companions

ProductJob
CitraPDF answers with page-level proof
IrisImage facts and pixel evidence
CueVideo timelines and timestamp evidence
SpineRepository architecture and impact
LookoutWeb research with source excerpts

Locus finds the chunk. Spine maps the architecture. Install only what the task needs.

Docs: https://sylphxai.github.io/locus/

Development

bash
bun install
bun run build:rust
cargo test
bun run docs:build

License

MIT

Similar modules

Browse Code search