feat: improve skill scores for claude-cortex

[rohan-tessl]

Hey @NickCrew 👋

I ran your skills through tessl skill review at work and found some targeted improvements.

Here's the full before/after:

Skill	Before	After	Change
constructive-dissent	33%	84%	+51%
template-skill-enhanced	22%	69%	+47%
ux-review	40%	84%	+44%
vibe-security	43%	84%	+41%
executing-plans	43%	74%	+31%

This PR is intentionally scoped to five skills — the lowest scorers in the repo. More skills can be improved in follow-ups or via automated review on future PRs.

Changes made

All five skills:

• Added "Use when" activation clause to frontmatter descriptions (quoted string format)
• Replaced keywords with tags where applicable
• Added structured ## Workflow sections with numbered steps

template-skill-enhanced:

• Replaced all placeholder content ([Pattern Name], example_code_here()) with concrete skill-creation guidance
• Restructured as a usable template guide rather than an abstract skeleton
• Added validation step referencing cortex skills validate

constructive-dissent:

• Converted four intensity levels into a concise decision table
• Consolidated challenge methodologies into a step-by-step workflow
• Trimmed redundant example phrases while preserving the framework

ux-review:

• Added inline code example for accessible ARIA patterns
• Restructured multi-perspective analysis into a cleaner workflow
• Added cross-reference to ui-design-aesthetics for scope clarity

executing-plans:

• Expanded from a sparse outline to a full workflow with verification loop
• Added bash example for verification sequence
• Added best practices section covering task hygiene and blocker handling

vibe-security:

• Added structured workflow (identify attack surface → apply checks → verify headers → test)
• Added attack surface trigger table for quick domain identification
• Cross-referenced defense-in-depth for infrastructure security scope

Honest disclosure — I work at @tesslio where we build tooling around skills like these. Not a pitch - just saw room for improvement and wanted to contribute.

Want to self-improve your skills? Just point your agent (Claude Code, Codex, etc.) at this Tessl guide and ask it to optimize your skill. Ping me - @rohan-tessl - if you hit any snags.

Thanks in advance 🙏