hermes - 💡(How to fix) Fix Roadmap: add skill linting, tests, and packaging checks

Summary

Make skills installable, lintable, and testable with automated enforcement of the existing authoring standards.

Proposed scope

• Add hermes skills lint.
• Validate skill metadata, description length, section order, and platform gates.
• Check referenced tools against known Hermes tools and declared MCP prerequisites.
• Add portability checks for script imports and OS-specific primitives.
• Add skill smoke tests using fixture prompts.
• Define packaging expectations for external skill repos.

Acceptance criteria

• New and modernized skills can be validated locally and in CI.
• Common SKILL.md standard violations are reported with actionable messages.
• Skill authors have a supported path for external packaging.