feat: ship as npm package via @netresearch/agent-skill-coordinator

[CybotTM]

Summary

• Adds package.json so the skill is npm-installable straight from this GitHub repo (no npm-registry publication required to start).
• README gains a parallel npm (Node Projects) section under Installation, mirroring the existing Composer (PHP Projects) section.

How discovery works (consumer side)

npm install --save-dev \
  @netresearch/agent-skill-coordinator \
  github:netresearch/agent-rules-skill

After install, the coordinator's postinstall walks node_modules, finds this package via aiAgentSkill: skills/agent-rules/SKILL.md, validates the frontmatter, and writes a <skills_system> block into the project's AGENTS.md. Same shape as the Composer plugin's output.

Why version stays at 0.0.0-source

Versioning still lives in git tags and the existing Composer release workflow. A real npm version would be set at publish time; until then, 0.0.0-source is the standard "this manifest exists for tooling, not as a release marker" placeholder.

Sibling PRs (merged)

• feat: ship as npm package via @netresearch/agent-skill-coordinator git-workflow-skill#39
• feat: ship as npm package via @netresearch/agent-skill-coordinator github-project-skill#67
• feat: ship as npm package via @netresearch/agent-skill-coordinator security-audit-skill#67

Coordinator: https://github.com/netresearch/node-agent-skill-coordinator (@netresearch/agent-skill-coordinator@0.1.2)

[gemini-code-assist]

Code Review

This pull request introduces npm support for the agent rules skill by adding a package.json file and updating the README.md with installation and configuration instructions for Node.js projects. Feedback was provided regarding the files array in package.json, noting that several entries for scripts and license files appear to be redundant or point to incorrect paths, which could cause warnings during package installation.

[Copilot]

Pull request overview

This PR makes the skill consumable as a GitHub-installed npm package (discovered via @netresearch/agent-skill-coordinator) and documents the Node installation flow alongside the existing Composer flow.

Changes:

• Add a root package.json that exposes the skill via aiAgentSkill and limits packed contents via files.
• Extend README.md installation instructions with an npm section (including a pnpm postinstall allowlist note).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
package.json	Defines the npm package metadata and exposes the skill entrypoint for coordinator discovery.
README.md	Documents npm-based installation/discovery flow for Node projects.

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