ci: add skill-review GitHub Action for automated skill review on PRs

[yogesh-tessl]

Hey @ez-lbz 👋

Thanks for merging #1. The description score jump (50% → 100%) looks solid in production now.

Since you don't have any CI set up yet, I thought it'd be worth adding a lightweight quality gate for future SKILL.md changes. This wires up the same tessl skill review tool from #1 as a GitHub Action.

What this adds

A single workflow file: .github/workflows/skill-review.yml

It runs tessl skill review whenever a PR touches **/SKILL.md and posts a score card as a PR comment. No secrets to configure. Works out of the box with the default GITHUB_TOKEN.

Permissions & trust

The workflow requests two permissions:

Permission	Why	Scope
contents: read	Checkout the PR branch to read SKILL.md files	Read-only
pull-requests: write	Post the score card as a PR comment	Write, scoped to the triggering PR only

The action is pinned to a specific commit SHA (tesslio/skill-review@22e928d...), not a mutable tag. so what you review now is exactly what runs in CI. No silent updates.

If you'd rather avoid the write permission entirely, the action can also run in check-only mode (exit code 1 on score regression, no comment posted), happy to switch to that if you prefer.

How it fits

This repo currently has no CI. This would be the first workflow, scoped narrowly to skill file changes only. It won't trigger on any other file types.

Workflow	Trigger	Purpose
skill-review.yml (new)	PR touching **/SKILL.md	Automated skill quality gate

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Same disclosure as #1. I work at @tesslio. This is the same tool that generated the score card in #1, just wired up to run automatically.

Thanks 🙏