Switched license to MIT and convert prompts into skills

[AlexJSully]

Switched the license to MIT so all the current copilot prompts are also now structured are publishable skills.

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Project	Deployment	Actions	Updated (UTC)
portfolio	Ready	Preview	Aug 3, 2026 11:16pm

[Copilot]

Pull request overview

This PR updates the repository licensing and developer tooling to support publishing the existing Copilot prompt content as MIT-licensed, installable Agent Skills, while also migrating Markdown linting to markdownlint-cli2 and refreshing CI workflows to newer Node and action versions.

Changes:

• Switched project licence metadata and references from GPL-3.0 to MIT (README, package.json, CITATION.cff, and skill licences).
• Migrated Markdown linting from markdownlint-cli + ignore/config files to markdownlint-cli2 with repo-wide config and directory-specific carve-outs.
• Expanded/structured .claude/ rules, hooks, and skills to support prompt-skill parity checking and skill publishability checks.

Reviewed changes

Copilot reviewed 87 out of 89 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/instrumentation.ts	Adds spacing for readability in runtime-conditional Sentry registration.
README.md	Updates licence link to MIT and adds citation guidance.
package.json	Adds MIT licence metadata, upgrades dependencies, and migrates Markdown lint scripts.
CLAUDE.md	Updates agent guidance, adds repo-independence and prompt-skill sync rules, and updates gate command references.
CITATION.cff	Updates citation metadata licence to MIT.
.prettierignore	Stops excluding .claude/ from Prettier formatting.
.markdownlintignore	Removed in favour of markdownlint-cli2 + gitignore: true.
.markdownlint.json	Removed in favour of markdownlint-cli2 config.
.markdownlint-cli2.jsonc	Adds repository-wide markdownlint-cli2 configuration and globs.
.github/workflows/markdown-lint.yaml	Updates workflow triggers/config and runs markdown lint via lint:markdown:check.
.github/workflows/codeql-analysis.yaml	Updates action versions for CodeQL workflow steps.
.github/workflows/code-qa.yaml	Updates Node version matrix and action versions.
.github/prompts/.markdownlint-cli2.jsonc	Adds prompt-directory-specific rule carve-out (MD041).
.github/ISSUE_TEMPLATE/security_report.md	Adds an H1 heading after frontmatter for template structure.
.github/ISSUE_TEMPLATE/feature_request.md	Adds an H1 heading after frontmatter for template structure.
.github/ISSUE_TEMPLATE/bug_report.md	Adds an H1 heading after frontmatter for template structure.
.github/copilot-instructions.md	Updates validation wording and expands repo-independence/current-state guidance and links.
.claude/skills/write-tests/SKILL.md	Marks as internal and refactors content to reference shared standards and local deltas.
.claude/skills/typescript-code-and-test-standards/references/test-standards.md	Adds a detailed test standards reference document.
.claude/skills/typescript-code-and-test-standards/references/project-detection.md	Adds a project detection reference for configuration-driven decisions.
.claude/skills/typescript-code-and-test-standards/references/mocking-policy.md	Adds a detailed mocking policy reference document.
.claude/skills/typescript-code-and-test-standards/references/google-typescript-style-digest.md	Converts prior skill-like content into a reference document and expands guidance.
.claude/skills/typescript-code-and-test-standards/references/comments-and-jsdoc.md	Adds detailed comment and documentation-block guidance reference.
.claude/skills/typescript-code-and-test-standards/LICENSE.txt	Adds MIT licence for the published skill.
.claude/skills/typescript-code-and-test-standards/assets/project-rules.template.md	Adds a template for host-repo rules files.
.claude/skills/typescript-code-and-test-standards/assets/copilot-instructions.template.md	Adds a template for Copilot .instructions.md mirroring.
.claude/skills/typescript-code-and-test-standards/agents/test-quality-reviewer.md	Adds an agent for reviewing test quality and mock justification.
.claude/skills/typescript-code-and-test-standards/agents/comment-and-jsdoc-auditor.md	Adds an agent for auditing comments and documentation blocks.
.claude/skills/check-skills/SKILL.md	Adds an internal skill to run/describe skill validation and parity checks.
.claude/skills/audit-quality/LICENSE.txt	Adds MIT licence for the published audit skill.
.claude/skills/audit-pr/references/environment-and-observability.md	Adds a reference document for parity/observability review.
.claude/skills/audit-pr/LICENSE.txt	Adds MIT licence for the published audit skill.
.claude/skills/audit-pr/assets/review-summary.template.md	Adds a reusable review-summary template asset.
.claude/skills/audit-pr/agents/finding-refuter.md	Adds a refutation-pass agent definition.
.claude/skills/audit-docs/references/evidence-and-citation.md	Adds a reference document for grounding documentation claims.
.claude/skills/audit-docs/references/diagram-and-image-accessibility.md	Adds a reference document for diagram/image accessibility requirements.
.claude/skills/audit-docs/LICENSE.txt	Adds MIT licence for the published audit skill.
.claude/skills/audit-docs/assets/audit-report.template.md	Adds an audit report template asset.
.claude/skills/audit-docs/agents/surface-auditor.md	Adds an agent for locating undocumented public surface and contradicted comments.
.claude/skills/audit-docs/agents/diagram-reviewer.md	Adds an agent for auditing diagram accessibility and accuracy.
.claude/skills/audit-docs/agents/curation-reviewer.md	Adds an agent for document curation/readership checks.
.claude/skills/audit-docs/agents/coverage-mapper.md	Adds an agent for mapping docs coverage and duplication/orphans.
.claude/skills/audit-docs/agents/claim-verifier.md	Adds an agent for adversarial claim verification.
.claude/settings.json	Adds a post-edit hook to prompt prompt-skill parity checks.
.claude/rules/testing.md	Refactors repository-specific testing rules to defer to shared standards and list local deltas.
.claude/rules/repo-independence.md	Adds a path-scoped rule enforcing no product dependency on agentic files.
.claude/rules/prompt-skill-sync.md	Adds a path-scoped rule defining the prompt-skill parity contract.
.claude/rules/docs-authoring.md	Updates Markdown authoring rules to reference the audit and bundled references.
.claude/Makefile	Adds an agent-tooling entry point for check-skills.
.claude/hooks/validate-gate.mts	Updates validation gating logic, messaging, and config-file matching.
.claude/hooks/prompt-skill-sync.mts	Adds a hook that points editors to the counterpart audit half when one side is edited.
.claude/hooks/markdown-audit-reminder.mts	Updates reminder text to point at the “full rules” prompt file.
.claude/agents/validator.md	Updates validator description and references for test/skill procedures.
.claude/agents/prompt-skill-sync.md	Adds a subagent spec for judging and repairing prompt-skill parity.
.claude/.markdownlint-cli2.jsonc	Adds .claude/-local markdownlint config carve-out (MD041).
.claude/skills/skill-creator/scripts/utils.py	Removes skill-creator utility script (directory cleanup).
.claude/skills/skill-creator/scripts/quick_validate.py	Removes skill-creator quick validation script (directory cleanup).
.claude/skills/skill-creator/scripts/package_skill.py	Removes skill-creator packaging script (directory cleanup).
.claude/skills/skill-creator/LICENSE.txt	Removes skill-creator licence file (directory cleanup).
.claude/skills/skill-creator/assets/eval_review.html	Removes skill-creator eval HTML asset (directory cleanup).
.claude/skills/skill-creator/agents/grader.md	Removes skill-creator grader agent file (directory cleanup).
.claude/skills/skill-creator/agents/comparator.md	Removes skill-creator comparator agent file (directory cleanup).
.claude/skills/skill-creator/agents/analyzer.md	Removes skill-creator analyzer agent file (directory cleanup).