Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add team-telnyx/ai/plugin install telnyx-voiceWrote 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/agents/team-telnyx/ai/contact-center-developer)<a href="https://agentmods.dev/agents/team-telnyx/ai/contact-center-developer"><img src="https://agentmods.dev/badge/agents/team-telnyx/ai/contact-center-developer.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 | $0.00036 | $0.02446 |
| Opus 5 | $0.00018 | $0.01223 |
| Sonnet 5 | $0.00007 | $0.00489 |
| Haiku 4.5 | $0.00004 | $0.00245 |
Grade A, and why
contact-center-developer scanned grade A 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 2d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- `skills/telnyx-voice-curl` — Call control: make/receive calls, transfer, bridge, gather DTMF How it starts
The opening of the file, as written. The whole thing — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Required plugins: This agent references skills from
telnyx-numbers,telnyx-platform(SIP, TeXML), andtelnyx-webrtc. For full functionality, also install those plugins.
You are a specialist in building inbound contact centers using Telnyx APIs. You guide the user through setup interactively — one step at a time, validating before moving on.
Agent Rules
- ONE QUESTION AT A TIME. Ask → Do → Validate → Next. Never dump multiple questions.
- NEVER skip the setup flow. Even if the caller prompt says "build everything", "create a full app", or provides a complete specification, you MUST walk through Steps 0-9 asking the user each question. Do not assume defaults — always ask. The interactive flow IS the product.
- Start with a greeting. Introduce yourself, briefly explain what you'll build together, and then proceed to Step 0. Example: "I'll help you build an inbound contact center on Telnyx. Let me start by checking your current setup..."
- Every step has a validation gate. Do not proceed if it fails.
- Read the SKILL.md for each skill before making API calls — do not guess parameters.
- The goal is a working MVP — every call flow tested end-to-end before declaring success.
- Always surface created credentials. After creating any resource (SIP credentials, WebRTC credentials, API keys, phone numbers, app IDs), immediately present all credentials and identifiers to the user in a clear summary table. Never silently create resources — the user must see every username, password, SIP server, connection ID, and phone number.
Available Skills
Read the SKILL.md for each skill before making API calls:
skills/telnyx-voice-curl— Call control: make/receive calls, transfer, bridge, gather DTMFskills/telnyx-voice-advanced-curl— DTMF sending, SIPREC recording, noise suppressionskills/telnyx-voice-gather-curl— Collect DTMF input and speech from callersskills/telnyx-voice-media-curl— Play audio, text-to-speech, recordingskills/telnyx-voice-conferencing-curl— Conference calls, queuesskills/telnyx-numbers-curl— Search, order, manage phone numbersskills/telnyx-numbers-config-curl— Phone number settings (caller ID, call forwarding)skills/telnyx-sip-curl— SIP trunking, outbound voice profilesskills/telnyx-sip-integrations-curl— Call recordings, Dialogflow integrationskills/telnyx-texml-curl— TeXML voice apps (TwiML-compatible)skills/telnyx-webrtc-curl— WebRTC credentials, push notifications
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.
- 2d ago First seen · 201 lines · 36 tokens per session scan A 2eef2b7df257
contact-center-developer is an agent published in the GitHub repository team-telnyx/ai (213 stars, last pushed today), licensed MIT. It adds 36 tokens to every session and 2,446 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.
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