What is liveavatar-debug?

A troubleshooting guide for LiveAvatar, a service that provides real-time talking video avatars. It links common symptoms to likely causes and fixes.

Use it to diagnose microphone permissions, speech input, audio format, session setup, authentication, and other LiveAvatar connection problems.

It helps find integration mistakes that may produce silence, distorted audio, failed sessions, missing events, or API errors without clear explanations.

liveavatar-debug — Skill for Claude Code and Codex by heygen-com

Install

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.

Any agent

npx skills add heygen-com/liveavatar-agent-skills --skill liveavatar-debug

Clone the repo

git clone --depth 1 https://github.com/heygen-com/liveavatar-agent-skills

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/heygen-com/liveavatar-agent-skills/liveavatar-debug/github.svg)](https://agentmods.dev/skills/heygen-com/liveavatar-agent-skills/liveavatar-debug)

Your own site

<a href="https://agentmods.dev/skills/heygen-com/liveavatar-agent-skills/liveavatar-debug"><img src="https://agentmods.dev/badge/skills/heygen-com/liveavatar-agent-skills/liveavatar-debug/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/heygen-com/liveavatar-agent-skills/liveavatar-debug"><img src="https://agentmods.dev/badge/skills/heygen-com/liveavatar-agent-skills/liveavatar-debug.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,093 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

Socket pass 15 Sept 2026
Snyk pass 15 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

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	$0.00049	$0.01093
Opus 5.5	$0.00020	$0.00437
Sonnet 5.5	$0.00010	$0.00219
Haiku 4.5	$0.00005	$0.00109

Measured 2mo ago against content hash 1c3f34e6c3b8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

liveavatar-debug 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 2mo 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.

skills/liveavatar-debug/SKILL.md · 116 lines

How it starts

The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.

LiveAvatar Debugging Guide

Symptom-based troubleshooting for LiveAvatar integrations. Find your symptom below and follow the fix.

Avatar is silent / not responding to speech

Most likely: Missing context_id in FULL Mode.

Without a context_id, the avatar enters restricted mode — streams video but ignores user input. No error thrown.

Fix: Create a context via POST /v1/contexts with at least a prompt field. Include the returned context_id in your session token's avatar_persona.

Other causes:

Browser mic permissions blocked (check allow="microphone" on iframe)
Push-to-Talk enabled but PTT events not being sent
OS-level mic mute

Audio is garbled or distorted (LITE Mode)

Most likely: Wrong audio format.

Required: PCM 16-bit signed, 24KHz, base64. No error returned for wrong format.

Checklist:

Sample rate is exactly 24,000 Hz
Raw PCM (no WAV/MP3/OGG headers)
16-bit signed, not 8-bit or 32-bit float
Base64 encoded
Chunks under 1MB

Quick test: Send a known-good 440Hz test tone. If it works but your TTS doesn't, resample your TTS output.

401 error / session fails to start

Most likely: Wrong auth header.

Endpoint	Correct auth
`POST /v1/sessions/token`	`X-API-KEY: <api_key>`
`POST /v1/sessions/start`	`Authorization: Bearer <session_token>`

Common mistakes: using API key on /start, using Bearer token on /token, putting API key in Bearer format.

Events not received (FULL Mode)

Subscribed to correct topics? Send to agent-control, receive from agent-response
LiveKit room connected? Check connection state
Parsing JSON correctly? Events have event_type, event_id, session_id

WebSocket events silently dropped (LITE Mode)

Most likely: Sending before connected.

Wait for {"type": "session.state_updated", "state": "connected"} before sending any commands.

Also check:

Using correct event names? LITE uses agent.*, not avatar.* (that's FULL)
WebSocket still open? 5-min inactivity timeout

Read the full file on GitHub · 116 lines

Changes

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.

2mo ago First seen · 116 lines · 49 tokens per session scan A 1c3f34e6c3b8

Subscribe to this mod's changes

liveavatar-debug is a skill published in the GitHub repository heygen-com/liveavatar-agent-skills (16 stars, last pushed 2mo ago), licensed MIT. It adds 49 tokens to every session and 1,093 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-31.

Debugging

liveavatar-debug next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
liveavatar-debugheygen-com/liveavatar-agent-skills	Skill	16	2mo ago	MIT	A	49	Claude Code, Codex
systematic-debuggingopen-metadata/OpenMetadata	Skill	16k	today	Apache-2.0	A	37	Claude Code
log-error-digestzebbern/claude-code-guide	Skill	4.7k	today	MIT	A	71	Claude Code, Codex
cwv-optimizeradobe/skills	Skill	326	today	Apache-2.0	A	112	Claude Code
ci-fixersipyourdrink-ltd/bernstein	Skill	1.2k	today	Apache-2.0	A	15	Claude Code, Codex
self-healhristo2612/jinn	Skill	329	yesterday	MIT	A	19	Claude Code, Codex
diagnosing-missing-recordingsPostHog/posthog	Skill	41k	today	none	A	76	Claude Code, Codex