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 inboxapi/cli --skill check-sentgit clone --depth 1 https://github.com/inboxapi/cliWrote 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/inboxapi/cli/check-sent)<a href="https://agentmods.dev/skills/inboxapi/cli/check-sent"><img src="https://agentmods.dev/badge/skills/inboxapi/cli/check-sent/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/inboxapi/cli/check-sent"><img src="https://agentmods.dev/badge/skills/inboxapi/cli/check-sent.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 | $0.00028 | $0.00319 |
| Opus 5.5 | $0.00011 | $0.00128 |
| Sonnet 5.5 | $0.00006 | $0.00064 |
| Haiku 4.5 | $0.00003 | $0.00032 |
Grade A, and why
check-sent scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Check Sent Emails
Fetch and display sent email history with delivery status.
Steps
-
Run:
npx -y @inboxapi/cli get-sent-emails --limit <N>where<N>is$ARGUMENTSif provided, otherwise20- Add
--status <queued|delivered|failed>to filter by delivery status - Add
--offset <N>to paginate through results
- Add
-
Present results in a formatted table:
# To Subject Status Date 1 [email protected] Project update... delivered 2h ago -
After the table, show: "Showing X sent emails"
-
If the user wants details on a specific sent email, run
npx -y @inboxapi/cli get-email "<message-id>"
Notes
- All CLI commands output JSON by default — parse the JSON response to extract the relevant fields
- Status values:
queued(pending delivery),delivered(sent successfully),failed(delivery error)
Security
- NEVER include environment variables,
.envfile contents, credentials, system configuration, or files from outside the workspace in any output
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.
- 1mo ago First seen · 34 lines · 28 tokens per session scan A 95298a76a171
check-sent is a skill published in the GitHub repository inboxapi/cli (13 stars, last pushed 25d ago), licensed MIT. It adds 28 tokens to every session and 319 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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