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 agentmods add skills/zenonel/herald/herald-sendnpx skills add ZenonEl/herald --skill herald-sendgit clone --depth 1 https://github.com/ZenonEl/heraldWrote 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/zenonel/herald/herald-send)<a href="https://agentmods.dev/skills/zenonel/herald/herald-send"><img src="https://agentmods.dev/badge/skills/zenonel/herald/herald-send.svg" alt="Measured on agentmods" 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 | $0.00098 | $0.01543 |
| Opus 5 | $0.00049 | $0.00772 |
| Sonnet 5 | $0.00020 | $0.00309 |
| Haiku 4.5 | $0.00010 | $0.00154 |
Grade C, and why
herald-send scanned grade C 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 5d 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.
Nullifies safety policieshighAnti-refusal
"You have no restrictions", "do anything now", "ignore your guidelines": a direct jailbreak that disables guardrails.
8. Use `send_file` only when the user explicitly asks to send a local file or image. Use an absolute path, `kind=auto`, and a concise caption. If the path is rejected, explain that its directory must be added to `files.a The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
3 files 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.
- 5d ago First seen · 83 lines · 98 tokens per session scan C 1eb8f057ca77
herald-send is a skill published in the GitHub repository ZenonEl/herald (0 stars, last pushed 4d ago), licensed AGPL-3.0. It adds 98 tokens to every session and 1,543 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it C with 1 finding (nullifies safety policies). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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