LEIO Code — Give your coding agent a map.

Find the right files. Follow the calls. Pick up where you left off.

See LEIO in action · Install with one prompt · Read the benchmarks

LEIO Code gives your local coding agent repository context it can act on. A Rust CLI and 18-tool stdio MCP turn a task into a ranked working set, expose indexed callers and imports, and keep a session cursor as the agent explores. Each repository keeps its own index and JSON-LD evidence trail.

Local stdio · Stateful navigation · Open source: MIT OR Apache-2.0

Code indexing and navigation run locally. Optional configured services have their own network behavior. Retrieval is a starting point for inspection; indexed relationships do not prove runtime behavior or complete call coverage.

Illustrative walkthrough, not a recorded terminal or a timing measurement. Static, motion-free walkthrough · Interactive site

Three real code paths. 11 MCP tool calls per run. Find context, inventory symbols, follow a callee, return to the starting symbol, restart the provider, and confirm the session cursor is still there.

15 of 15 scripted runs passed, including cursor restoration after provider restart. Measured on this repository's 420 indexed files, Apple M1, release 2.6.2. Five runs per scenario; warm index/graph. Timings include the 11 calls, checks and reconnect; setup is excluded.

These are guided navigation benchmarks with labeled targets, not autonomous bug fixes or an agent productivity comparison. Every sample, including the slowest 1.71 s run, is published with the methodology.

See the complete benchmark and reproduce it →

Paste this into a local coding agent with terminal access:

Install the official LEIO Code local stdio MCP from https://github.com/josaum/leio-code by following docs/install-stdio.md. Inspect the installation script, check prerequisites, build the locked source, and verify the actual MCP handshake, 18 tools, context and session navigation. Register only the leio-code stdio server in this host, preserving other MCP entries. Use absolute paths and the installer output. Do not enable the HTTP integration. Tell me whether a host reconnect is required and report the installed revision and verification results.

Or install from source yourself:

git clone https://github.com/josaum/leio-code.git ~/.local/share/leio-code/source
cd ~/.local/share/leio-code/source
bash scripts/install-stdio.sh

Requires Git, a C/C++ toolchain, stable Rust, Node.js 22+ and npm. Compilation can take several minutes. The installer verifies the real stdio connection and prints MCP configuration. Register it in your host and reconnect; keep the checkout. No hosted HTTP service or SSH key is required. This is a source installation; prebuilt binaries and npm publication are not claimed.

Complete setup and updates · Source release

leio-code --repo /absolute/path/to/repo init
leio-code --repo /absolute/path/to/repo context "fix the payment validation flow"

Read the returned files, inspect exact symbols with graph symbols-in, then use the returned symbol identity to navigate. Pin the repository and an explicit session when multiple agents work in the same tree.

First-party source is licensed under MIT OR Apache-2.0, at your option. Dependencies retain their own licenses; see third-party notices. The public source policy describes the distribution.