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 heygen-com/liveavatar-agent-skills --skill liveavatar-debuggit clone --depth 1 https://github.com/heygen-com/liveavatar-agent-skillsWrote 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/heygen-com/liveavatar-agent-skills/liveavatar-debug)<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.
<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>- Socket pass
- Snyk pass
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 | $0.00024 | $0.00547 |
| Sonnet 5 | $0.00010 | $0.00219 |
| Haiku 4.5 | $0.00005 | $0.00109 |
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 9d 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 — 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 fromagent-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.*, notavatar.*(that's FULL) - WebSocket still open? 5-min inactivity timeout
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.
- 9d ago First seen · 116 lines · 49 tokens per session scan A 1c3f34e6c3b8
liveavatar-debug is a skill published in the GitHub repository heygen-com/liveavatar-agent-skills (7 stars, last pushed 1mo ago), licensed MIT. It adds 49 tokens to every session and 1,093 once invoked, about $0.0002 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 2026-08-31.
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