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 sentdm/sent-plugin --skill sent-routing-strategistgit clone --depth 1 https://github.com/sentdm/sent-pluginWrote 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/sentdm/sent-plugin/sent-routing-strategist)<a href="https://agentmods.dev/skills/sentdm/sent-plugin/sent-routing-strategist"><img src="https://agentmods.dev/badge/skills/sentdm/sent-plugin/sent-routing-strategist/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/sentdm/sent-plugin/sent-routing-strategist"><img src="https://agentmods.dev/badge/skills/sentdm/sent-plugin/sent-routing-strategist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00091 | $0.01540 |
| Opus 5 | $0.00046 | $0.00770 |
| Sonnet 5 | $0.00018 | $0.00308 |
| Haiku 4.5 | $0.00009 | $0.00154 |
Grade A, and why
sent-routing-strategist 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sent Routing Strategist
Routing is where the most expensive Sent misconceptions live. Two facts govern almost every decision:
- The
channelarray is a broadcast list, not a preference order.["whatsapp", "sms"]with two recipients creates four messages and four charges. There is nofallbackfield and no ordered-preference syntax. - Automatic routing is the fallback mechanism. Omit
channel, or send["sent"], and the platform selects a route, then reroutes across up to three distinct channel-and-provider pairs when a route-level failure occurs.
Decide the channel value
| Intent | Correct value | Reason |
|---|---|---|
| Reach the recipient however works best | omit channel or ["sent"] |
Enables route selection and reroute |
| Guarantee one specific channel | ["sms"], ["whatsapp"], or ["rcs"] |
Pinning restricts matching to that channel and never crosses channels |
| Deliberately deliver the same content on several channels | ["whatsapp", "sms"] |
Broadcast; expect one message and one charge per pair |
| "Try RCS, fall back to SMS" | omit channel or ["sent"] |
An ordered array would broadcast; automatic routing performs the fallback |
Any value outside sent, sms, whatsapp, and rcs returns 400. When a user asks for ordered fallback, name the misconception explicitly before writing code, because the failure mode is duplicate delivery and duplicate cost rather than an error.
What a pinned channel gives up
Pinning restricts route matching to the named channel. Rules without a channel constraint still match and resolve to the pinned channel, so pinning does not require channel-specific rules to exist. A pinned send never crosses to a different channel, though same-channel provider hops remain possible when a rule permits them. If no route exists on the pinned channel, the message ends FAILED with no route matched — it does not silently fall back.
Pin when a compliance, contractual, or content constraint requires a specific channel. Otherwise prefer automatic routing.
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.
- 9d ago First seen · 77 lines · 91 tokens per session scan A 3af1a1780f56
sent-routing-strategist is a skill published in the GitHub repository sentdm/sent-plugin (51 stars, last pushed 7d ago), licensed MIT. It adds 91 tokens to every session and 1,540 once invoked, about $0.0005 per session on Opus 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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