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/sentdm/sent-plugin/sent-integration-starternpx skills add sentdm/sent-plugin --skill sent-integration-startergit clone --depth 1 https://github.com/sentdm/sent-pluginWhat 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 | $0.00100 | $0.02023 |
| Opus 5 | $0.00050 | $0.01012 |
| Sonnet 5 | $0.00020 | $0.00405 |
| Haiku 4.5 | $0.00010 | $0.00202 |
Grade A, and why
sent-integration-starter scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sent Integration Starter
Bring up a Sent integration in four stages: authenticate, send idempotently, receive verified events, then harden. Do not conflate them — most broken integrations pass stage one and skip stage three.
Stage 1: client and credentials
Direct Sent v3 REST requests authenticate with the x-api-key header. An application proxy may accept Authorization: Bearer from its own callers, and the Sent MCP server uses client-managed OAuth, but neither changes the REST header sent to api.sent.dm. Organization keys may add x-profile-id to act for a child profile; a profile-scoped key that sends that header receives 403.
| Language | Package | Client |
|---|---|---|
| TypeScript | @sentdm/sentdm |
new SentDm() |
| Python | sentdm (imports sent_dm) |
Sent() or AsyncSent() |
| Go | github.com/sentdm/sent-dm-go |
sentdm.NewClient() |
| Java | dm.sent:sent-java |
SentOkHttpClient.fromEnv() |
| C# | Sentdm |
new SentClient() |
| PHP | sentdm/sent-dm-php |
new SentDm\Client($apiKey) |
| Ruby | sentdm |
Sentdm::Client.new |
Every SDK except PHP reads SENT_DM_API_KEY automatically. Single-endpoint receiver samples read SENT_DM_WEBHOOK_SECRET; multi-tenant production receivers need a secret registry keyed by webhook id instead of one process-wide secret. Older documentation uses SENT_API_KEY and SENT_WEBHOOK_SECRET — treat those as aliases and standardize on the SENT_DM_ names.
Choose the client lifecycle from the credential model. A single-account service with one server-managed key should reuse a long-lived client and its connection pool. A multi-tenant proxy that resolves a caller or profile credential per request should construct the client for that request and discard it, so tenant credentials cannot leak through shared state. Framework-specific wiring, the Ruby messages.send_ naming quirk, and per-ecosystem background-work choices are in references/sdk-and-frameworks.md.
What ships with it
4 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.
- 3d ago First seen · 109 lines · 100 tokens per session scan A 0a88c357b459
sent-integration-starter is a skill published in the GitHub repository sentdm/sent-plugin (52 stars, last pushed 23d ago), licensed MIT. It adds 100 tokens to every session and 2,023 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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