feat: improve skill quality scores for MetaClaw

[rohan-tessl]

Hey 👋 @huaxiuyao

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
do-not-retry-without-diagnosis	43%	86%	+43%
tool-selection-strategy	51%	85%	+34%
source-evaluation	53%	86%	+33%
structured-step-by-step-reasoning	51%	84%	+33%
async-communication-etiquette	61%	93%	+32%
idempotent-script-design	61%	86%	+25%
plan-before-multi-step-execution	51%	76%	+25%
structured-progress-update	70%	88%	+18%
technical-writing-clarity	75%	93%	+18%
uncertainty-acknowledgment	70%	88%	+18%
graceful-error-recovery	76%	93%	+17%
audience-aware-communication	59%	76%	+17%
secure-code-review	70%	86%	+16%
prioritize-by-impact	70%	81%	+11%
structured-research-workflow	75%	86%	+11%
structured-logging-and-observability	77%	86%	+9%
task-decomposition	76%	84%	+8%
auth-and-authorization-patterns	81%	86%	+5%
secrets-management	81%	86%	+5%

Changes made:

• Expanded frontmatter descriptions with explicit "Use when..." trigger clauses, natural user-facing keywords, and concrete action lists
• Removed unknown category frontmatter key causing validation warnings
• Preserved all domain expertise and specialized terminology
• Kept body content changes minimal — existing skill bodies were already well-structured

Skills left unchanged: verify-before-irreversible-action (already at 93%), sql-best-practices, debug-systematically, context-window-management, agent-task-handoff (already scoring well)

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 https://docs.tessl.io/evaluate/optimize-a-skill-using-best-practices and ask it to optimize your skill. Ping me - @rohan-tessl - if you hit any snags.

Thanks in advance 🙏

[richard-peng-xia]

Thanks so much for your great contribution on skill quality! We currently are not going to modify the initial skills. This is because many experiments are based on the current version, and we've checked that the initial skill descriptions are still clear enough for most users to choose freely, rather than requiring us to manually update them. Anyway, thanks again for your efforts!