[ai] add SKILL.md

[capcom6]

Summary by CodeRabbit

• Documentation
  • Added a comprehensive guide for the SMSGate CLI tools, including installation, updates, configuration, and credential setup.
  • Expanded command usage examples for sending SMS, checking delivery status, batch imports, webhook management, log retrieval, and certificate issuance.
  • Documented supported output formats, error handling behavior, exit codes, and end-to-end workflows.

[github-actions]

🤖 Pull request artifacts

Platform	File
🐳 Docker	GitHub Container Registry
🍎 Darwin arm64	smsgate_Darwin_arm64.tar.gz
🍎 Darwin x86_64	smsgate_Darwin_x86_64.tar.gz
🐧 Linux arm64	smsgate_Linux_arm64.tar.gz
🐧 Linux i386	smsgate_Linux_i386.tar.gz
🐧 Linux x86_64	smsgate_Linux_x86_64.tar.gz
🪟 Windows arm64	smsgate_Windows_arm64.zip
🪟 Windows i386	smsgate_Windows_i386.zip
🪟 Windows x86_64	smsgate_Windows_x86_64.zip

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: afa30228-894e-43f9-8597-df74b14615dc

📥 Commits

Reviewing files that changed from the base of the PR and between 3d4a331 and e164be1.

📒 Files selected for processing (1)

• SKILL.md

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📝 Walkthrough

Walkthrough

Added SKILL.md, a new documentation file providing a complete CLI reference for the smsgate and smsgate-ca tools, covering installation, configuration, all commands, output formats, exit codes, and usage examples.

Changes

CLI Documentation

Layer / File(s)	Summary
SKILL.md CLI user guide SKILL.md	Introduces a 251-line CLI reference documenting installation options, credential/config sources, command usage (send, status, batch, webhooks, logs, cert issuance), output formats, exit codes, and end-to-end examples.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: adding SKILL.md.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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