feat(skills): add official optional 1password skill

optional-skills/security/1password/references/cli-examples.md

@@ -0,0 +1,31 @@
+# op CLI examples
+
+## Sign-in and identity
+
+```bash
+op signin
+op signin --account my.1password.com
+op whoami
+op account list
+```
+
+## Read secrets
+
+```bash
+op read "op://app-prod/db/password"
+op read "op://app-prod/one-time password?attribute=otp"
+```
+
+## Inject secrets
+
+```bash
+echo "api_key: {{ op://app-prod/openai/api key }}" | op inject
+op inject -i config.tpl.yml -o config.yml
+```
+
+## Run command with secrets
+
+```bash
+export DB_PASSWORD="op://app-prod/db/password"
+op run -- sh -c '[ -n "$DB_PASSWORD" ] && echo "DB_PASSWORD is set"'
+```