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/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/agents/team-telnyx/ai/contact-center-developer"><img src="https://agentmods.dev/badge/agents/team-telnyx/ai/contact-center-developer.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 | $0.00036 | $0.02446 |
| Opus 5.5 | $0.00014 | $0.00978 |
| Sonnet 5.5 | $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 1mo 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.
- 1mo 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 (224 stars, last pushed today), licensed MIT. It adds 36 tokens to every session and 2,446 once invoked, about $0.0001 per session on Opus 5.5. 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.
Other agents, from other repositories
openai-api-expert
Trained to expertly handle OpenAI API features, usage patterns, and best practices.
integration-specialist
Expert at integrating with external services, APIs, and MCP servers while maintaining simplicity. Use proactively when connecting to external systems, setting up MCP servers, or handling API integrations. Examples: user: 'Set up integration with the new payment API' assistant: 'I'll use the integration-specialist…
playwright-test-generator
Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.
.NET-Notebook-Migration-Agent
Expert .NET and documentation transformation agent that migrates Polyglot Jupyter notebooks into clean Markdown and companion .NET sample code.
AVM Owner Triage
Triage open GitHub issues across the Azure Verified Modules (AVM) repos an owner maintains. Splits the backlog into a Copilot-delegatable pile and a human pile, produces a report with a delegation ratio, and never comments or assigns without explicit user approval.
Ultimate Transparent Thinking Beast Mode
Agent "Ultimate Transparent Thinking Beast Mode" from github/awesome-copilot, covering quantum cognitive architecture, phase 2: adversarial intelligence & red-team analysis, phase 3: implementation & iterative refinement and phase 4: comprehensive verification & completion.