- Update SKILL.md with JSON-first approach (agents.json pattern)
- Add all opencode config options: mode, temperature, maxSteps, hidden, permission
- Document permissions system with granular rules and glob patterns
- Add references/opencode-agents-json-example.md with chiron pattern
- Rewrite triggering-examples.md for opencode (Tab, @mention, Task tool)
- Update agent-creation-system-prompt.md for JSON output format
- Rewrite complete-agent-examples.md with JSON examples
- Rewrite validate-agent.sh to support both JSON and Markdown validation
