Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add zavudev/zavu-skills --skill send-messagegit clone --depth 1 https://github.com/zavudev/zavu-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/zavudev/zavu-skills/send-message)<a href="https://agentmods.dev/skills/zavudev/zavu-skills/send-message"><img src="https://agentmods.dev/badge/skills/zavudev/zavu-skills/send-message/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/zavudev/zavu-skills/send-message"><img src="https://agentmods.dev/badge/skills/zavudev/zavu-skills/send-message.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00026 | $0.04220 |
| Opus 5 | $0.00013 | $0.02110 |
| Sonnet 5 | $0.00005 | $0.00844 |
| Haiku 4.5 | $0.00003 | $0.00422 |
Grade A, and why
send-message scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -X POST https://api.zavu.dev/v1/messages \ How it starts
The opening of the file, as written. The whole thing — 476 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Send Message
When to Use
Use this skill when building code to send messages through the Zavu API. Covers channel selection, the recipient (to) formats, message types, and error handling.
Channels
auto, sms, sms_oneway, whatsapp, telegram, email, instagram, messenger, voice.
Senders vs accounts (one paragraph)
A Sender is the API handle you pass as Zavu-Sender; accounts (a WhatsApp Business Account, a Facebook Page, a Telegram bot, a phone number) are the connections it routes — and what bills. Senders are free. Connecting an account in the dashboard auto-creates its sender; find it with GET /v1/senders and trust its channels array for what it can send. See the channel-setup skill for the full model.
Channel Selection Decision Tree
Is recipient an email address?
-> YES: channel = "email" (the sender needs an email channel: a verified domain)
Is message type non-text (image, video, buttons, list, template, etc.)?
-> YES: channel = "whatsapp" (auto-selected)
Need voice call / TTS?
-> YES: channel = "voice"
Recipient is a numeric chat ID (Instagram / Messenger / Telegram)?
-> YES: channel = "instagram" | "messenger" | "telegram"
Need one-way SMS (no inbound replies)?
-> YES: channel = "sms_oneway"
Need guaranteed delivery to a specific channel?
-> YES: channel = "sms" | "whatsapp" | "telegram" | "instagram" | "messenger"
Want cost-optimized routing?
-> YES: channel = "auto" (ML-powered smart routing)
Default?
-> channel = "sms" (or omit for default)
Recipient (to) formats
The universal to field accepts several identifier formats. Routing follows channel (or is auto-selected from the identifier when channel is omitted).
| Format | Example | Notes |
|---|---|---|
| E.164 phone | +14155551234 |
SMS, WhatsApp, Voice, Telegram. |
| Email address | [email protected] |
Defaults to email. |
| WhatsApp BSUID | US.13491208655302741918 |
Business-scoped user ID. Routed to WhatsApp; use to message a contact who adopted a username and hid their phone number. |
| Numeric chat ID | 123456789 |
Telegram, Instagram, or Messenger chat/user ID. |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 476 lines · 26 tokens per session scan A e6b0342fccf7
send-message is a skill published in the GitHub repository zavudev/zavu-skills (1 stars, last pushed today), licensed Apache-2.0. It adds 26 tokens to every session and 4,220 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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