How do I install the Quickstart skill?

Run npx skillmds@latest add javimosch/quickstart-1255 in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Quickstart skill do?

sms-cli Quickstart It is listed under Coding & Dev Tools on SkillMD.

Is Quickstart safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Quickstart?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Quickstart free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Quickstart?

javimosch (@javimosch) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Quickstart by javimosch — Agent Skill

Name: Quickstart
Author: javimosch

File contents

sms-cli Quickstart

Agent-friendly SMS sender. Non-interactive by design. Supports Twilio, Vonage, MailerSend, Clickatell, Telnyx.

Status: All 5 providers verified and working ✅

Schema Discovery

sms-cli --help-json

Returns full command schema: flags, env vars, exit codes.

Send SMS

# Auto-detect provider from env
sms-cli send --to +15551234567 --message "Hello" --json

# Explicit provider
sms-cli send --to +15551234567 --message "Hello" --provider twilio --json

# Custom sender
sms-cli send --to +15551234567 --message "Hello" --provider vonage --from MyBrand --json

Output (JSON):

{"version":"1.0","provider":"twilio","to":"+15551234567","from":"+18001234567","message_id":"SM123","status":"sent","timestamp":"2026-05-08T12:00:00.000Z"}

Check Providers

# All providers
sms-cli providers list --json

# Single provider
sms-cli providers check twilio --json

Environment Variables

Var	Provider	Required
`SMS_PROVIDER`	all	optional (auto-detect)
`TWILIO_ACCOUNT_SID`	twilio	yes
`TWILIO_AUTH_TOKEN`	twilio	yes
`TWILIO_FROM`	twilio	yes
`VONAGE_API_KEY`	vonage	yes
`VONAGE_API_SECRET`	vonage	yes
`VONAGE_FROM`	vonage	yes
`MAILERSEND_API_KEY`	mailersend	yes
`MAILERSEND_FROM`	mailersend	yes
`CLICKATELL_API_KEY`	clickatell	yes
`CLICKATELL_FROM`	clickatell	optional
`TELNYX_API_KEY`	telnyx	yes
`TELNYX_FROM`	telnyx	yes

Exit Codes

Code	Meaning	Retry?
0	Success	-
81	Missing required flag	No — fix command
82	Invalid argument	No — fix command
83	Missing provider config	No — set env vars
91	Provider not found	No — fix provider name
101	API error	Yes
102	Auth failed	No — fix credentials
105	Timeout	Yes — retry after `retry_after` seconds
111	Internal error	No

Error Response Structure

{
  "error": {
    "code": 83,
    "type": "missing_provider_config",
    "message": "No SMS provider configured.",
    "recoverable": false,
    "retry_after": null,
    "suggestions": ["Set SMS_PROVIDER=twilio and TWILIO_ACCOUNT_SID, TWILIO_AUTH_TOKEN, TWILIO_FROM"]
  }
}

Agent Decision Logic

exit 0        → success, parse stdout JSON
exit 81-83    → don't retry, fix input/config
exit 91       → invalid provider name
exit 101,105  → retry with backoff (check retry_after field)
exit 102      → don't retry, fix credentials
exit 111      → report bug

Stderr

Progress and warnings go to stderr, never stdout:

[sms-cli] Sending via twilio...

Suppress with 2>/dev/null in pipelines.

Pipe Composition

# Send to multiple recipients
echo -e "+15551234567\n+15559876543" | while read n; do
  sms-cli send --to "$n" --message "Alert!" --provider twilio --json
done

# Check if all providers are configured
sms-cli providers list --json | jq '[.providers[] | select(.configured == true)] | length'

---name: quickstart-1255description: sms-cli Quickstart---# sms-cli QuickstartAgent-friendly SMS sender. Non-interactive by design. Supports Twilio, Vonage, MailerSend, Clickatell, Telnyx.**Status:** All 5 providers verified and working ✅## Schema Discovery```bashsms-cli --help-json```Returns full command schema: flags, env vars, exit codes.## Send SMS```bash# Auto-detect provider from envsms-cli send --to +15551234567 --message "Hello" --json# Explicit providersms-cli send --to +15551234567 --message "Hello" --provider twilio --json# Custom sendersms-cli send --to +15551234567 --message "Hello" --provider vonage --from MyBrand --json```**Output (JSON):**```json{"version":"1.0","provider":"twilio","to":"+15551234567","from":"+18001234567","message_id":"SM123","status":"sent","timestamp":"2026-05-08T12:00:00.000Z"}```## Check Providers```bash# All providerssms-cli providers list --json# Single providersms-cli providers check twilio --json```## Environment Variables| Var | Provider | Required ||-----|----------|----------|| `SMS_PROVIDER` | all | optional (auto-detect) || `TWILIO_ACCOUNT_SID` | twilio | yes || `TWILIO_AUTH_TOKEN` | twilio | yes || `TWILIO_FROM` | twilio | yes || `VONAGE_API_KEY` | vonage | yes || `VONAGE_API_SECRET` | vonage | yes || `VONAGE_FROM` | vonage | yes || `MAILERSEND_API_KEY` | mailersend | yes || `MAILERSEND_FROM` | mailersend | yes || `CLICKATELL_API_KEY` | clickatell | yes || `CLICKATELL_FROM` | clickatell | optional || `TELNYX_API_KEY` | telnyx | yes || `TELNYX_FROM` | telnyx | yes |## Exit Codes| Code | Meaning | Retry? ||------|---------|--------|| 0 | Success | - || 81 | Missing required flag | No — fix command || 82 | Invalid argument | No — fix command || 83 | Missing provider config | No — set env vars || 91 | Provider not found | No — fix provider name || 101 | API error | Yes || 102 | Auth failed | No — fix credentials || 105 | Timeout | Yes — retry after `retry_after` seconds || 111 | Internal error | No |## Error Response Structure```json{ "error": { "code": 83, "type": "missing_provider_config", "message": "No SMS provider configured.", "recoverable": false, "retry_after": null, "suggestions": ["Set SMS_PROVIDER=twilio and TWILIO_ACCOUNT_SID, TWILIO_AUTH_TOKEN, TWILIO_FROM"] }}```## Agent Decision Logic```exit 0 → success, parse stdout JSONexit 81-83 → don't retry, fix input/configexit 91 → invalid provider nameexit 101,105 → retry with backoff (check retry_after field)exit 102 → don't retry, fix credentialsexit 111 → report bug```## StderrProgress and warnings go to stderr, never stdout:```[sms-cli] Sending via twilio...```Suppress with `2>/dev/null` in pipelines.## Pipe Composition```bash# Send to multiple recipientsecho -e "+15551234567\n+15559876543" | while read n; do sms-cli send --to "$n" --message "Alert!" --provider twilio --jsondone# Check if all providers are configuredsms-cli providers list --json | jq '[.providers[] | select(.configured == true)] | length'```

Frequently asked questions

Quickstart