Twilio for AI provides coding agents with skills and an MCP server for using Twilio services and documentation. The MCP server searches Twilio documentation and API specifications and retrieves full schemas for selected operations, while the skills supply procedural guidance to agents. Its catalogue add-ons are intended for Claude Code, Cursor, Codex, and other tools that support the Agent Skills standard.
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 twilio/ai --skill twilio-sendgrid-email-settingsgit clone --depth 1 https://github.com/twilio/aiWrote 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/twilio/ai/twilio-sendgrid-email-settings)<a href="https://agentmods.dev/skills/twilio/ai/twilio-sendgrid-email-settings"><img src="https://agentmods.dev/badge/skills/twilio/ai/twilio-sendgrid-email-settings/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/twilio/ai/twilio-sendgrid-email-settings"><img src="https://agentmods.dev/badge/skills/twilio/ai/twilio-sendgrid-email-settings.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 | $0.00085 | $0.00943 |
| Opus 5 | $0.00043 | $0.00472 |
| Sonnet 5 | $0.00017 | $0.00189 |
| Haiku 4.5 | $0.00009 | $0.00094 |
Grade A, and why
twilio-sendgrid-email-settings 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 10d 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 — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Overview
SendGrid email settings control how your messages are constructed, personalized, and tracked. Most configuration happens in the SendGrid Console, but templates and tracking can also be managed via API.
Dynamic Templates
Templates use Handlebars syntax and are managed in Console > Email API > Dynamic Templates. Template IDs start with d-.
Supported Handlebars helpers:
| Helper | Use | Example |
|---|---|---|
if / unless |
Conditional | {{#if premium}}Welcome back!{{/if}} |
each |
Iteration | {{#each items}}{{this.name}}{{/each}} |
equals / notEquals |
Comparison | {{#equals status "active"}}...{{/equals}} |
and / or |
Boolean logic | {{#and premium verified}}...{{/and}} |
greaterThan / lessThan |
Numeric | {{#greaterThan count 5}}...{{/greaterThan}} |
length |
Array/string | {{length items}} |
formatDate |
Date format | {{formatDate date "MM/DD/YYYY"}} |
insert |
Module insert | {{insert "module_name"}} |
NOT supported: Custom helpers, inline partials, lookup, log, with, blockHelperMissing. SendGrid implements a subset of Handlebars.js.
Template Versions
- Dynamic templates (IDs starting with
d-): Support Handlebars - Legacy transactional templates: Use
-substitution-syntax — not interchangeable with Handlebars
Tracking Settings
| Setting | What it does | Caveat |
|---|---|---|
| Open tracking | Inserts a tracking pixel | Unreliable: Apple Mail Privacy Protection inflates opens; image-blocking clients produce false negatives |
| Click tracking | Rewrites URLs through SendGrid's redirect | Can trigger spam filters on some domains |
| Subscription tracking | Adds unsubscribe footer | Required for CAN-SPAM compliance |
| Google Analytics | Adds UTM parameters | Only for marketing campaigns |
Configure per-message or account-wide in Console > Settings > Tracking.
Link Branding (Custom Tracking Domains)
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.
- 10d ago First seen · 93 lines · 85 tokens per session scan A 30d6c9e98bc3
twilio-sendgrid-email-settings is a skill published in the GitHub repository twilio/ai (30 stars, last pushed 26d ago), licensed MIT. It adds 85 tokens to every session and 943 once invoked, about $0.0004 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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