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 InitechSoftware/openclaw-whatsapp-skills --skill whatsapp-delivery-checkgit clone --depth 1 https://github.com/InitechSoftware/openclaw-whatsapp-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/initechsoftware/openclaw-whatsapp-skills/whatsapp-delivery-check)<a href="https://agentmods.dev/skills/initechsoftware/openclaw-whatsapp-skills/whatsapp-delivery-check"><img src="https://agentmods.dev/badge/skills/initechsoftware/openclaw-whatsapp-skills/whatsapp-delivery-check/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/initechsoftware/openclaw-whatsapp-skills/whatsapp-delivery-check"><img src="https://agentmods.dev/badge/skills/initechsoftware/openclaw-whatsapp-skills/whatsapp-delivery-check.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 | $0.00065 | $0.00996 |
| Opus 5 | $0.00032 | $0.00498 |
| Sonnet 5 | $0.00013 | $0.00199 |
| Haiku 4.5 | $0.00006 | $0.00100 |
Grade A, and why
whatsapp-delivery-check 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 12d 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 -sS -H "Authorization: Bearer $TIMELINES_AI_API_KEY" \ How it starts
The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.
WhatsApp delivery check
Check whether a previously-sent WhatsApp message was actually delivered. TimelinesAI's POST /messages returns a message_uid that is a receipt, not a delivery confirmation — the real delivery status comes from GET /messages/{uid}/status_history.
When to use
- After a transactional send, confirm delivery before telling the user "message sent".
- Answer "did John actually receive the invoice I sent this morning?" from the human user.
- Retroactively check whether an old message was read.
- Aggregate delivery stats across many messages for response-time analytics.
Invocation payload
{
"message_uid": "a8f9b2c1-..."
}
Implementation
curl -sS -H "Authorization: Bearer $TIMELINES_AI_API_KEY" \
"https://app.timelines.ai/integrations/api/messages/$MESSAGE_UID/status_history"
Response shape
{
"status": "ok",
"data": [
{"status": "Sent", "timestamp": "2026-04-12 12:28:40 +0000"},
{"status": "Delivered", "timestamp": "2026-04-12 12:28:41 +0000"},
{"status": "Read", "timestamp": "2026-04-12 12:31:15 +0000"}
]
}
The data array is in chronological order. Each entry is a state transition.
Interpretation
| Latest status | What it means |
|---|---|
Sent |
TimelinesAI accepted the send and pushed it to WhatsApp. The recipient's device has NOT confirmed delivery yet. |
Delivered |
The recipient's device has received the message. They haven't opened the chat yet. |
Read |
The recipient opened the chat (with read receipts enabled on their end). They've seen it. |
Typical timing on an active number: Sent → Delivered within ~1 second. Delivered → Read can take minutes or hours depending on when the recipient opens their phone. For customers with read receipts disabled, you'll never see Read — treat Delivered as the strongest signal you'll get.
Return value
Return the full status history as structured data so the caller can decide what to do:
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 12d ago First seen · 95 lines · 65 tokens per session scan A 50045a072944
whatsapp-delivery-check is a skill published in the GitHub repository InitechSoftware/openclaw-whatsapp-skills (3 stars, last pushed 4mo ago), licensed MIT. It adds 65 tokens to every session and 996 once invoked, about $0.0003 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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