[codex] Add initial skills library

[KarmCraft]

Summary

• Add the initial public skills-library repository structure and repo hygiene files.
• Document the optional tools/ folder convention for helper CLIs, adapters, and small utilities that support a skill without replacing primary workflow scripts.
• Add the sysadmin-windows-startup-performance skill with agent metadata, scripts, references, synthetic fixture, tools placeholder, and a local hub template.
• Add validation workflow coverage for PowerShell parsing, Markdown final newlines, and the synthetic startup analysis example.
• Use actions/checkout@v5 so the workflow targets Node.js 24 directly instead of relying on GitHub's forced Node 24 compatibility mode for Node 20 actions.

Validation

• quick_validate.py sysadmin-windows-startup-performance
• PowerShell parser check for bundled scripts
• Synthetic analyzer run against examples/synthetic-baseline.json
• Markdown final newline check
• git diff --cached --check before commit

Notes

The remote repository was empty, so I first pushed a signed empty main base commit and then opened this PR from the feature branch.

[Copilot]

Pull request overview

Introduces the initial public “skills-library” repository structure and adds the first skill (sysadmin-windows-startup-performance) for collecting and analyzing read-only Windows startup performance baselines.

Changes:

• Adds repository hygiene files (license, contributing/security guidance, editor/Git settings, gitignore).
• Adds a validation GitHub Actions workflow to parse PowerShell, enforce Markdown final newlines, and run the analyzer on a synthetic baseline.
• Adds the sysadmin-windows-startup-performance skill with scripts, references, a synthetic fixture, agent metadata, and a local hub template scaffold.

Reviewed changes

Copilot reviewed 16 out of 21 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
sysadmin-windows-startup-performance/tools/.gitkeep	Placeholder for optional helper tooling under the skill.
sysadmin-windows-startup-performance/templates/local-performance/state/.gitkeep	Keeps the state/ directory present while ignoring generated state files.
sysadmin-windows-startup-performance/templates/local-performance/reports/.gitkeep	Keeps the reports/ directory present while ignoring generated reports.
sysadmin-windows-startup-performance/templates/local-performance/logs/.gitkeep	Keeps the logs/ directory present while ignoring generated logs.
sysadmin-windows-startup-performance/templates/local-performance/README.md	Documents the local “performance hub” template usage for the skill.
sysadmin-windows-startup-performance/SKILL.md	Skill metadata and usage/validation documentation.
sysadmin-windows-startup-performance/scripts/collect-startup-baseline.ps1	Collector script for baseline acquisition (event logs, startup inventory, resource snapshots).
sysadmin-windows-startup-performance/scripts/analyze-startup-baseline.ps1	Analyzer script to rank findings and emit Markdown + JSON analysis outputs.
sysadmin-windows-startup-performance/references/safety.md	Safety and remediation boundaries for the skill.
sysadmin-windows-startup-performance/references/data-model.md	Documents the baseline and analysis JSON schemas at a high level.
sysadmin-windows-startup-performance/examples/synthetic-baseline.json	Synthetic fixture used for analyzer validation in CI.
sysadmin-windows-startup-performance/agents/openai.yaml	Agent interface metadata and default prompt for the skill.
SECURITY.md	Repository security reporting and data-handling guidance.
README.md	Top-level repository overview and installation guidance.
LICENSE	Adds MIT license for the repository.
CONTRIBUTING.md	Contribution guidelines and validation expectations.
AGENTS.md	Agent-facing repository conventions (notably final newlines, avoiding generated artifacts).
.gitignore	Ignores generated state/reports/logs while allowing .gitkeep placeholders.
.github/workflows/validate.yml	CI workflow validating PowerShell parsing, Markdown newlines, and synthetic analysis run.
.gitattributes	Normalizes line endings (LF) including PowerShell scripts.
.editorconfig	Editor defaults including final newlines and indentation rules.

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[Copilot]

Pull request overview

Copilot reviewed 16 out of 23 changed files in this pull request and generated 5 comments.

[Copilot]

Pull request overview

Copilot reviewed 16 out of 23 changed files in this pull request and generated 3 comments.