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Code Intelligence for React Applications.

Build Status


Recon provides a new level of insight into your codebase allowing you to understand how your components are being used, easily grep their complexity, draw dependency graphs, and isolate points for optimisation.

On top of this the raw information Recon provides gives a strong base for creating tools (such as living styleguides) which may need to plug in to component meta data.


The core of Recon revolves around recon-engine. This engine parses your application pulling out any data which may be useful (eg. Props, component dependencies, enhancements etc.). Then a graphql query interface is exposed allowing you to explore your applications in an incredibly intuitive manner!

Checking out our test fixtures is a great place to an example of this.

Once this data is consolidated the possibility of tools to be built on top are endless!

Getting Started

Prerequisites: Node >v6. Also ensure using import/export syntax, using JSX (see roadmap for full list)

Install and configuration

The quickest way to get going with Recon for your project is to use our CLI application.

Firstly install with

$ npm install -g recon-cli

Now, within your application working directory, simply run

$ recon

You are now inside Recon! :O

From this point forwards the entire power of Recon should be just a help command away.

recon$ help

The first thing you're going to want to do from here is create a new config file .reconrc in the working directory of your project.

You can do this interactively by running

recon$ init

To view all configuration possibilities you can view the docs here.

Show me the power!

Why not start off by trying stats. This will analyse your application and dump out a bunch of objective statements and statistics.

recon$ stats

Then if you're feeling extra adventurous give server a go. This will spawn a new graphql server which will allow you to query your application meta data freely.

recon$ server

For everything else see what is available via the help command!

I want to integrate Recon into x

Documentation is going to be a little skimpy here for a while since we are planning on getting the internals of recon-engine to be as powerful as possible and stabilising the api as much as possible.

Most likely you'll want to look at using recon-engine and recon-server (their tests are a decent place to start looking).

Disclaimer: This is a very early preview of Recon and you should expect breaking changes within the <v1 range of releases.


  • Bugs? Please submit a Pull Request with your minimal source code and a test which breaks.
  • Want to fix something or add a new feature? Get started with our Dev Guide!

For more details on all contributions see

High-level Roadmap

  • Move CLI away from vorpal to a non-interactive version
    • The engine should be spawned in the background. Ie. similar to flow server
  • Identify initial parsing issues across many codebases
    • Improve test .toMatch to not care about ordering (ie. add toMatchUnordered)
    • Provide better DX for dumping debug data and reporting issues
  • Pull prop type definitions from components
  • Broader React usage support
    • React.createClass, React.createElement, hyperscript
    • Support decorator syntax as enhancements
    • Support require('module')
  • Better prop usage information
    • Pull out static values (eg. prop="stringValue")
    • Resolve basic flows to determine possible values (upto prop types)
    • Resolve rest/spread props
  • More trivial meta data! (eg. docblocks)
  • Stabilise graphql interface
  • Support long-running persisted engine (ie. watch file changes)
  • Work on documentation and integrations for developer tools
  • Explore plugin api
  • Reassess and tidy implementation
    • Performance optimisations
  • Identify application critical paths
  • Explore using Flow for internal type resolution


Apache 2.0


Code Intelligence for React Applications




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