Sergei Kudinov

The requirement comming from this descussion - https://github.com/adaltas/node-nikita/pull/240

Describe working with tags on documentation page.

- Add improved functionality of [Ajv coercion rules](https://ajv.js.org/docs/coercion.html) in `packages/engine/src/plugins/schema.coffee` (false string is not boolean false, objects) - then replace coercing in all `on_action` hooks

Solution is similar to `log.cli` in the PR https://github.com/adaltas/node-nikita/pull/226

Add config "yarn" to switch to YARN package manager in all the actions of `tool.npm`.

If config is: ``` const app = parameters( { options: { "config": {} }, commands: { "start": {} } } ) ``` This programm: ``` app.compile( { config: "app.yaml" }...

Add the `stringify` method

2

Add the `stringify` method, documentation and tests. The method converts an array, which is result of the `compile` method, to a CLI command string. For example: If the Parameters config...