synthflow — Agent Skill

Synthflow plugin

Connects Claude to the Synthflow AI voice-agent platform, and ships the review skills Claude uses on top of it.

Once connected, Claude can call Synthflow tools directly — managing assistants, phone numbers, calls, knowledge bases, actions, and simulations from your editor.

Which connection to use

There are two ways to get the Synthflow tools, and you want one of them:

| Your setup | Use | |------------|-----| | claude.ai, Claude Desktop, Claude Cowork | The official Synthflow connector — it handles region selection during sign-in | | Claude Code, interactive | Either. The connector if you already have it; otherwise this plugin's bundled server | | Claude Code headless, CI, cron | This plugin's bundled server with an API key (see Alternative: API key) |

If you use the connector, keep this plugin installed anyway — the skills below work against either connection.

Skills

| Skill | What it does | |-------|--------------| | call-review | Audits the last 100 calls for an agent against a problem checklist (unresolved outcomes, repetition, dropout, compliance risks) and reports flagged calls with evidence. | | prompt-review | Reviews a voice-agent prompt before deployment: contradictions, missing context, tool/action alignment, escalation gaps, compliance risk, and regression risk. |

Claude invokes these automatically when the task fits; you can also run them explicitly, e.g. /synthflow:call-review.

Regions

Synthflow runs three regional MCP endpoints, and the endpoint must match your workspace's region — a mismatch (e.g. the EU URL with a US workspace) stops the connection from working. Find your region under Admin → Workspace Settings → Preferences → Customer Region.

With the official connector, this is handled for you — region selection happens during sign-in, so there's nothing to configure.

The rest of this section applies only to the plugin's bundled server and to servers you add by hand: