mcp-registry/com.voice-school/lesson-booking · v1.29.0
As of 2026-10-23 01:54 UTC, the Voice School Lesson Booking MCP server is up with a Glimind reliability score of 76/100 (grade B). Over the last 30 days it answered 99.4% of Glimind's liveness checks. It had 43 outages in 90 days, with a median recovery of 8 minutes.
Request online singing lessons with Voice School and Daria Klishina.
Claude Code
claude mcp add --transport http voice-school-lesson-booking-mcp-server https://mcp.voice-school.com/mcp
Claude Desktop · Windsurf · Cline (mcpServers JSON)
{
"mcpServers": {
"voice-school-lesson-booking-mcp-server": {
"type": "http",
"url": "https://mcp.voice-school.com/mcp"
}
}
}
Third-party server, listed as discovered. Review its source before installing.
122 parameter(s) across 25 tool(s) have no description.
Add a "description" to each parameter with its format and an example ("ISO 8601 date, e.g. 2026-10-17"). This is the commonest cause of wrong arguments on the first call. How to fix →
25 of 25 tool(s) carry no readOnlyHint/destructiveHint annotations.
Annotate read-only tools with {"readOnlyHint": true}. Agents and gateways can then run them without a confirmation prompt, and route around destructive ones. How to fix →
11 tool(s) look like they change state (create/send/delete/pay…) but declare no destructiveHint.
Set annotations {"readOnlyHint": false, "destructiveHint": true|false, "idempotentHint": …}. Clients use these to ask the user before a side effect and to auto-approve safe reads. How to fix →
In the last 30 days: 0 tool(s) removed and 1 schema change(s).
Add new tools or optional parameters instead of renaming or removing; deprecate first (say so in the description) and remove later. Agents cache tool contracts. How to fix →
Paste-ready definitions with the problems above fixed. Changes marked verify need a human look. 25 tool(s) still need parameter descriptions written by someone who knows the API. All of them as JSON: /v1/readiness/mcp-registry%2Fcom.voice-school%2Flesson-booking/fixes
{
"name": "create_lesson_request",
"description": "Create a request-first lead for an online vocal lesson. Requires name and at least one contact method. This never confirms a lesson or creates a private schedule item.",
"inputSchema": {
"type": "object",
"title": "create_lesson_requestArguments",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"title": "Name"
},
"email": {
"type": "string",
"title": "Email",
"default": ""
},
"phone": {
"type": "string",
"title": "Phone",
"default": ""
},
"message": {
"type": "string",
"title": "Message",
"default": ""
},
"language": {
"type": "string",
"title": "Language",
"default": "en"
},
"telegram": {
"type": "string",
"title": "Telegram",
"default": ""
},
"whatsapp": {
"type": "string",
"title": "Whatsapp",
"default": ""
},
"coach_slug": {
"type": "string",
"title": "Coach Slug",
"default": "daria-klishina"
},
"city_context": {
"type": "string",
"title": "City Context",
"default": ""
},
"service_slug": {
"type": "string",
"title": "Service Slug",
"default": ""
},
"source_agent": {
"type": "string",
"title": "Source Agent",
"default": ""
},
"requested_start": {
"type": "string",
"title": "Requested Start",
"default": ""
},
"requester_timezone": {
"type": "string",
"title": "Requester Timezone",
"default": ""
}
}
},
"annotations": {
"readOnlyHint": false,
"destructiveHint": false,
"idempotentHint": false
}
}{
"name": "create_social_post_draft",
"description": "Create or update a trainer social post with SEO title, description, keywords, tags, original source URL and ordered text/video blocks. Requires SOCIAL_POSTS_MCP_WRITE_TOKEN as write_token.",
"inputSchema": {
"type": "object",
"title": "create_social_post_draftArguments",
"required": [
"write_token",
"coach_slug",
"channel_slug",
"channel_title",
"channel_url",
"source_post_url"
],
"properties": {
"body": {
"type": "string",
"title": "Body",
"default": ""
},
"slug": {
"type": "string",
"title": "Slug",
"default": ""
},
"tags": {
"anyOf": [
{
"type": "array",
"items": {
"type": "string"
}
},
{
"type": "null"
}
],
"title": "Tags",
"default": null
},
"title": {
"type": "string",
"title": "Title",
"default": ""
},
"blocks": {
"anyOf": [
{
"type": "array",
"items": {
"type": "object",
"additionalProperties": true
}
},
{
"type": "null"
}
],
"title": "Blocks",
"default": null
},
"excerpt": {
"type": "string",
"title": "Excerpt",
"default": ""
},
"publish": {
"type": "boolean",
"title": "Publish",
"default": false
},
"keywords": {
"anyOf": [
{
"type": "array",
"items": {
"type": "string"
}
},
{
"type": "null"
}
],
"title": "Keywords",
"default": null
},
"raw_text": {
"type": "string",
"title": "Raw Text",
"default": ""
},
"seo_title": {
"type": "string",
"title": "Seo Title",
"default": ""
},
"coach_slug": {
"type": "string",
"title": "Coach Slug"
},
"channel_url": {
"type": "string",
"title": "Channel Url"
},
"write_token": {
"type": "string",
"title": "Write Token"
},
"channel_slug": {
"type": "string",
"title": "Channel Slug"
},
"channel_title": {
"type": "string",
"title": "Channel Title"
},
"language_code": {
"type": "string",
"title": "Language Code",
"default": "ru"
},
"source_platform": {
"type": "string",
"title": "Source Platform",
"default": "TELEGRAM"
},
"source_post_url": {
"type": "string",
"title": "Source Post Url"
},
"external_post_id": {
"type": "string",
"title": "External Post Id",
"default": ""
},
"meta_description": {
"type": "string",
"title": "Meta Description",
"default": ""
},
"source_published_at": {
"type": "string",
"title": "Source Published At",
"default": ""
}
}
},
"annotations": {
"readOnlyHint": false,
"destructiveHint": false,
"idempotentHint": false
}
}{
"name": "list_lesson_options",
"description": "List active lesson services and prices for a coach from the live Voice School database.",
"inputSchema": {
"type": "object",
"title": "list_lesson_optionsArguments",
"properties": {
"language": {
"type": "string",
"title": "Language",
"default": "en"
},
"coach_slug": {
"type": "string",
"title": "Coach Slug",
"default": "daria-klishina"
}
}
},
"annotations": {
"readOnlyHint": true
}
}Get an email or webhook when this server's readiness drops by 10+ points, tool-poisoning text appears, or a tool breaks:
curl -X POST https://glimind.com/v1/subscriptions -H 'content-type: application/json' -d '{"tools":["mcp-registry/com.voice-school/lesson-booking"],"email":"[email protected]"}'Agents: watch_tool({"toolId": "mcp-registry/com.voice-school/lesson-booking"}) over MCP.
create_social_post_draft ~538 tokenscreate_lesson_request ~323 tokensonline_article_audio_set ~300 tokensonline_material_section_save ~300 tokensonline_teacher_profiles_set ~287 tokensStatic checks of the advertised tools/list (schema, descriptions, annotations, tool-poisoning patterns, names, size) plus observed protocol, uptime, latency and contract changes. Read-only: no tool is ever called. Weights: schema 15, docs 20, safety 15, efficiency 15, compatibility 15, protocol 5, reliability 10, stability 5. Token counts are estimates (~3.6 characters per token).
Operator? Fix these, then re-check live. Embed the readiness badge:
[](https://glimind.com/server/mcp-registry%2Fcom.voice-school%2Flesson-booking?ref=badge)
<a href="https://glimind.com/server/mcp-registry%2Fcom.voice-school%2Flesson-booking?ref=badge"><img src="https://glimind.com/v1/readiness/badge/mcp-registry%2Fcom.voice-school%2Flesson-booking.svg" alt="MCP agent-readiness"></a>
.. image:: https://glimind.com/v1/readiness/badge/mcp-registry%2Fcom.voice-school%2Flesson-booking.svg :target: https://glimind.com/server/mcp-registry%2Fcom.voice-school%2Flesson-booking?ref=badge :alt: MCP agent-readiness
Glimind records every version of this server's tool definitions in a signed, append-only transparency log. Current manifest sha256:9459a57a40998753…, first seen 2026-10-21, included at leaf 38616 of 49,341. Version history · verify what your client received.
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Glimind tells agents whether a server is up right now and how to call it, then fails over to a live alternative when it isn't.
Claude Code
claude mcp add --transport http glimind https://glimind.com/mcp
Claude Desktop · Windsurf · Cline (mcpServers JSON)
{
"mcpServers": {
"glimind": {
"type": "http",
"url": "https://glimind.com/mcp"
}
}
}
As of 2026-10-23 01:54 UTC, the Voice School Lesson Booking MCP server is up with a Glimind reliability score of 76/100 (grade B). Over the last 30 days it answered 99.4% of Glimind's liveness checks. It had 43 outages in 90 days, with a median recovery of 8 minutes.
Voice School Lesson Booking MCP server advertises 25 tools, including create_lesson_request, create_social_post_draft, list_lesson_options, list_social_posts, online_article_audio_set.
Point your MCP client at this streamable-http endpoint: https://mcp.voice-school.com/mcp
Glimind scanned all 25 tool definitions for tool-poisoning patterns — hidden or invisible characters, instructions that override the model, concealment from the user, requests to read credential or MCP config files, conversation exfiltration and cross-tool shadowing — and found none. This checks what the server tells the model, not what its code does; review the source before granting access to sensitive data.
Status page: 90-day uptime, every outage and how long it lasted.
Claim this listing to get the Verified operator marker, a remediation checklist and owner analytics, or embed the live badge from any of the tool pages above. Maintainers: alerts, deploy attestation and monthly reports.
Status is an automated estimate from Glimind's liveness checks (handshake and tool listing only; no tool is ever called) and may lag or differ from your network. Glimind is not affiliated with this server or its operator. Operator? Request a correction or opt out at https://glimind.com/opt-out.