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-compliance-trafficgit 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-compliance-traffic)<a href="https://agentmods.dev/skills/twilio/ai/twilio-compliance-traffic"><img src="https://agentmods.dev/badge/skills/twilio/ai/twilio-compliance-traffic/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-compliance-traffic"><img src="https://agentmods.dev/badge/skills/twilio/ai/twilio-compliance-traffic.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Excessive Agency · line 34 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 | $0.00103 | $0.02388 |
| Opus 5 | $0.00051 | $0.01194 |
| Sonnet 5 | $0.00021 | $0.00478 |
| Haiku 4.5 | $0.00010 | $0.00239 |
Grade A, and why
twilio-compliance-traffic 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 11d 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 — 259 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Overview
Compliance failures block sends, get numbers suspended, and expose your customer to legal liability. This skill covers the ongoing rules that apply to live traffic — what you can send, when, and to whom.
Lifecycle: Choose numbers (twilio-numbers-senders) → Register them (twilio-compliance-onboarding) → Follow traffic rules (this skill) → Secure everything (twilio-security-hardening)
For registrations required before traffic works (A2P 10DLC, toll-free verification, WhatsApp/RCS sender approval, voice trust programs), see twilio-compliance-onboarding.
TCPA (Telephone Consumer Protection Act)
Applies to all US voice calls and SMS.
Consent Requirements
| Communication type | Consent required | Notes |
|---|---|---|
| Informational SMS (order updates) | Prior express consent | Providing phone number during transaction usually qualifies |
| Marketing SMS | Prior express written consent | Must be clear and conspicuous, separate from T&C |
| Manual voice calls | None for existing business relationship | 18-month window |
| Autodialed / prerecorded voice | Prior express consent (informational) or written (marketing) | AI voice agents typically count as autodialed and must disclose who is calling |
| Emergency / fraud alerts | No consent required | Must be genuinely urgent |
Quiet Hours
- 8:00 AM – 9:00 PM in the recipient's local time zone
- Applies to telemarketing and non-emergency calls
- Your application must determine the recipient's time zone — Twilio does not enforce this
- Use
twilio-lookup-phone-intelligenceto determine carrier/region for time zone inference
Do Not Call
- Maintain an internal Do Not Call list
- Honor opt-outs within 10 business days (best practice: immediately)
- Scrub against the National Do Not Call Registry for telemarketing
GDPR (EU/EEA)
Consent for Communications
| Basis | When it applies | Requirements |
|---|---|---|
| Explicit consent | Marketing messages, new customer outreach | Must be freely given, specific, informed, unambiguous. Pre-checked boxes do NOT qualify. |
| Legitimate interest | Transactional messages, existing customer relationship | Requires documented balancing test. Must offer opt-out. |
| Contractual necessity | Order confirmations, shipping updates | Directly related to contract performance |
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.
- 11d ago First seen · 259 lines · 103 tokens per session scan A 9b6b5789abbd
twilio-compliance-traffic is a skill published in the GitHub repository twilio/ai (32 stars, last pushed 27d ago), licensed MIT. It adds 103 tokens to every session and 2,388 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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