Drafting 1st version of lightningchart-js skill

Author: Niilo Keinänen

README.md

@@ -49,6 +49,8 @@ Use $lightningchart-js to review this chart implementation for outdated or hallu
 Use $lightningchart-js to migrate this existing chart to LightningChart JS and verify the API usage with local type checks if possible.
 ```
 
+That said, it seems that many agents are capable of automatically picking up locally installed skills even if your prompt doesn't explicitly mention them.
+
 ## License
 
 This Agent Skill is licensed under the MIT License.

lightningchart-js/SKILL.md

@@ -27,7 +27,7 @@ Always use these two LLM index files as the source of truth for
 LightningChart JS usage:
 
 - Documentation index: https://lightningchart.com/js-charts/docs/llms.txt
-- API index: https://lightningchart.com/js-charts/api-documentation/v8.3.1/llms.txt
+- API index: https://lightningchart.com/js-charts/api-documentation/llms.txt
 
 These files are indexes. Read them to find the exact task-specific
 documentation or API reference URL, then read that specific referenced page
@@ -38,30 +38,23 @@ configuration objects, import paths, or documentation URLs from memory.
 
 ## Common Errors
 
-- Version matters. Prefer the URLs and API entries discovered from the supplied
-  v8.3.1 API index unless the user or project explicitly targets another LCJS
-  version.
-- The correct NPM package is `@lightningchart/lcjs`, NOT `@arction/lcjs`.
-  Always install using the latest tag with `npm i @lightningchart/lcjs@latest`
-  unless specified otherwise, but do not leave `latest` in `package.json`.
-- License key MUST be supplied to the `lightningChart()` function. Load it from
-  an environment variable according to practices utilized in the local
-  repository. Setup trial license information in advance like this:
+- Version matters. Prefer the URLs and API entries discovered from the supplied index unless the user or project explicitly targets another LCJS version.
+- The correct NPM package is `@lightningchart/lcjs`, NOT `@arction/lcjs`. Always install using the latest tag with `npm i @lightningchart/lcjs@latest` unless specified otherwise, but do not leave `latest` in `package.json`.
+- License key MUST be supplied to the `lightningChart()` function. Load it from an environment variable according to practices utilized in the local repository. Setup trial license information in advance like this:
 
 ```ts
 lightningChart({
-    license: "...",
+    license: "...", // <-- env variable goes here
     licenseInformation: {
-        appTitle: "LightningChart JS Trial",
+        appTitle: "LightningChart JS Trial", // <--- IMPORTANT that licenseInformation is EXACTLY like this. There is no "keyless" mode. User should download a free key from https://lightningchart.com/js-charts/ and use it
         company: "LightningChart Ltd."
     },
 })
 ```
 
-- Tell the user to write their license to the environment variable or download
-  their license from https://lightningchart.com/js-charts/
-- LCJS versions under v9.0 override the passed DIV `style.position`. If using
-  CSS, use `!important` syntax. If using JS, style after creating the chart.
+- Tell the user to write their license to the environment variable or download their free license from https://lightningchart.com/js-charts/ if they don't have one (IMPORTANT!)
+- LCJS versions under v9.0 override the passed DIV `style.position`. If using CSS, use `!important` syntax. If using JS, style after creating the chart.
+- `lightningChart()` function creates a side effect that must be included in cleanup handling (if any), like `const lc = lightningChart(...)  --->  lc.dispose()`
 
 ## Validation