Oko

[Oko: a pixel-art eye with a blue iris]

Oko

Help your coding agent find code faster and use fewer tokens.

[CI] [Latest release] [MIT license]

Oko gives Claude Code, Codex, Cursor, OpenCode and Pi a better code search. When you ask your agent about your code, Oko has already found the relevant source, so the agent spends fewer rounds searching and reading files it does not need.

[Bar chart: with Oko, Claude Code spends 47% less time, 44% fewer tokens and 89% fewer tool calls; Codex 26%, 43% and 80%; OpenCode 47%, 43% and 87%; Pi 51%, 33% and 85%; Cursor 6%, 40% and 65%.]
_{Nine coding tasks on Astro, HTTPX and ripgrep, three runs each, with and without Oko. Results · Method}

• Faster: about half the time in Claude Code, OpenCode and Pi; a quarter less in Codex.
• Cheaper: 33–44% fewer tokens with every tool we measured.
• Fewer detours: 65–89% fewer tool calls.
• Better ranking: puts the right file first more often than any published method on Agent Retrieval Bench.
• Local first: search runs on your machine; only the question and selected snippets go to the ranker (privacy).

Quick start

brew install bartlomein/tap/okocd your-projectoko setup --client claude     # or codex, cursor, opencode, pi, all

Without Homebrew: curl -fsSL https://raw.githubusercontent.com/bartlomein/oko/main/install.sh | sh.

Then use your coding tool as usual. Setup asks for a TypeSafe AI key the first time, connects your tool to Oko for this project, and checks the connection. Run it once per project; oko upgrade keeps everything current (with Homebrew, run brew upgrade oko first).

Results

The same task given to the same coding tool twice, once with its own search and once with Oko, in the same run. Means per session.

_{Models: Claude Sonnet 5.5 (Claude Code), GPT-6.1 Sol (Codex, OpenCode, Pi), Grok 4.7 High (Cursor), at their default or low effort. Cursor's row is from its own run on the previous release; the others are from October 2026. Each tool counts tokens its own way, so compare within a row. Small benchmark; your results will vary. Method, per-task results and caveats · raw data.}

Other benchmarks

Where Oko helps less

• Cursor's own search is already fast, so Oko saves less time there: mostly tokens and tool calls.
• Duplicated code can mislead it. When two files hold identical copies of a function, Oko may show the wrong one first; one Astro edit task in our benchmark fails this way.
• Big changes across many files: one search returns five places, so an issue touching many files still needs the agent's own exploring.

Use it from your terminal

oko ask "where is authentication handled?"oko ask "how are retries handled?" --jsonoko stats                     # what ranking has cost you

More in search options.

How it works

Oko searches your project locally (keywords, symbols and file structure), then asks Jev, TypeSafe AI's relevance model, which of the candidates actually answer the question, and returns those excerpts with exact line numbers. oko setup connects it to your tool as an MCP server, adds short guidance to the instructions your tool reads, and installs a hook that answers a code question as you send it. What setup changes · Privacy.

Documentation

Contributing

Bug reports and ideas are welcome: open an issue with your OS and oko --version, without keys or private code. To build and test, see CONTRIBUTING.md.

License

MIT. Dependency attributions are in THIRD_PARTY_NOTICES.md.