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The canonical source is skills/yii2-nested-sets/SKILL.md in this package. It covers model configuration, queries, structural writes, migrations and writer-lock constraints. Guides remain in docs/; API contracts remain in src/ PHPDoc. Edit these sources instead of maintaining separate client copies.

Install in an application

Automatic Composer installation

Complete the one-time application setup to enable llm/skills and set auto-sync to true in skills.json. Approve yii2-extensions/nested-sets-behavior explicitly in dependencies.composer.trusted. The installed package must include its skill bundle; its extra.skills.source declares the directory.

composer install
composer skills:show

With auto-sync enabled, later dependency installs and updates synchronize the skill automatically; no per-skill installer is required. If auto-sync is false, run composer skills:update after dependency installation or updates.

For a release without skills/yii2-nested-sets/SKILL.md, register a local checkout containing the bundle once:

composer skills:add /absolute/path/to/nested-sets-behavior --skill=yii2-nested-sets

Optional npx installation

From the application root, use a local checkout containing the skill and select the clients you use:

npx skills@1.7.2 add /path/to/nested-sets-behavior --list
npx skills@1.7.2 add /path/to/nested-sets-behavior --skill yii2-nested-sets

For a public source, list first and install only if the skill is present:

npx skills@1.7.2 add yii2-extensions/nested-sets-behavior --list

Add --list to inspect available skills without installing them. Omit --global for a project installation. A remote command installs the repository’s selected skill, so use the local path for unpublished changes. Review the chosen destinations; Composer installing a package under vendor/ does not register its skills in your application.

Discovery and use

Client documentation: Codex skills, Claude Code skills, and OpenCode skills.

Select Claude Code, Codex, or OpenCode in the installer. Use each client’s skill list or native invocation mechanism to check discovery and activate yii2-nested-sets for a small task. Installation places files or links; discovery exposes its name and description; activation loads its instructions. Record those stages separately from successful PHP, database or concurrency tests. For automatic selection, use a natural tree-operation request without naming the skill.

The skill resolves the installed package and Yii versions before selecting documentation. A copied skill does not require neighboring docs/ files; it can use matching repository documentation or local source/PHPDoc and changelog when hosted pages are unavailable. See AI assistance for the framework documentation index and framework skill. Never substitute current hosted APIs for an older installation without verifying them.

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