mcp-registry/top.toolboxes/subtitle-toolkit · v1.0.0
As of 2026-10-27 19:02 UTC, the Toolboxes Subtitle Toolkit MCP server is up with a Glimind reliability score of 97/100 (grade A). Over the last 30 days it answered 100% of Glimind's liveness checks. It had 1 outage in 90 days, with a median recovery of 2 minutes.
Convert, clean, retime and validate SRT, WebVTT, ASS/SSA, SBV and TTML subtitles. 8 tools.
Point your MCP client at this streamable-http endpoint: https://subtitle-mcp.toolboxes.top/mcp
8 of 8 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 →
1 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 →
No tool declares an outputSchema.
Declare outputSchema and return structuredContent (MCP 2025-06-18+). Agents can then parse results without guessing, and chain tools reliably. How to fix →
Paste-ready definitions with the problems above fixed. Changes marked verify need a human look. All of them as JSON: /v1/readiness/mcp-registry%2Ftop.toolboxes%2Fsubtitle-toolkit/fixes
{
"name": "check_subtitle_timing",
"description": "Audit subtitle readability and produce a report: reading speed (CPS), cue durations that are too short or too long, lines that are too wide, more than two lines, and overlapping cues. Returns a formatted report listing every flagged cue.",
"inputSchema": {
"type": "object",
"required": [
"content"
],
"properties": {
"content": {
"type": "string",
"description": "The full subtitle file text."
},
"max_cps": {
"type": "number",
"description": "Max characters per second. Default 20."
},
"max_line_length": {
"type": "number",
"description": "Max characters per line. Default 42."
},
"max_duration_seconds": {
"type": "number",
"description": "Maximum cue duration in seconds. Default 7."
},
"min_duration_seconds": {
"type": "number",
"description": "Minimum cue duration in seconds. Default 0.833 (Netflix 5/6s)."
}
}
},
"annotations": {
"readOnlyHint": true
}
}{
"name": "convert_subtitle",
"description": "Convert subtitle text between formats. Reads SRT, WebVTT, ASS/SSA, YouTube SBV and TTML/DFXP; writes SRT, WebVTT, ASS, CSV or plain text. Format is auto-detected unless `from` is given.",
"inputSchema": {
"type": "object",
"required": [
"content",
"to"
],
"properties": {
"to": {
"enum": [
"srt",
"vtt",
"ass",
"csv",
"text"
],
"type": "string",
"description": "Target format. `text` = plain transcript, one line per cue, no timecodes."
},
"from": {
"enum": [
"auto",
"srt",
"vtt",
"ass",
"sbv",
"ttml"
],
"type": "string",
"description": "Source format (default \"auto\" = detect)."
},
"dedupe": {
"type": "boolean",
"description": "Only for to=\"text\": collapse consecutive identical lines (rolling-caption transcripts repeat lines). Default false."
},
"content": {
"type": "string",
"description": "The full subtitle file text."
}
}
},
"annotations": {
"readOnlyHint": true
}
}{
"name": "merge_subtitles",
"description": "Append one subtitle track after another (CD1 + CD2, or a second language track). The second track is offset so it starts after the last cue of the first, plus an optional gap.",
"inputSchema": {
"type": "object",
"required": [
"content",
"append_content"
],
"properties": {
"to": {
"enum": [
"srt",
"vtt"
],
"type": "string",
"description": "Output format. Default: same as the input."
},
"content": {
"type": "string",
"description": "The first subtitle file text."
},
"gap_seconds": {
"type": "number",
"description": "Extra gap between the two tracks, in seconds. Default 0."
},
"append_content": {
"type": "string",
"description": "The subtitle file text to append."
}
}
},
"annotations": {
"readOnlyHint": false,
"destructiveHint": false,
"idempotentHint": false
}
}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/top.toolboxes/subtitle-toolkit"],"email":"[email protected]"}'Agents: watch_tool({"toolId": "mcp-registry/top.toolboxes/subtitle-toolkit"}) over MCP.
clean_subtitles ~300 tokensretime_subtitles ~237 tokenscheck_subtitle_timing ~229 tokensconvert_subtitle ~229 tokenstext_to_subtitles ~205 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%2Ftop.toolboxes%2Fsubtitle-toolkit?ref=badge)
<a href="https://glimind.com/server/mcp-registry%2Ftop.toolboxes%2Fsubtitle-toolkit?ref=badge"><img src="https://glimind.com/v1/readiness/badge/mcp-registry%2Ftop.toolboxes%2Fsubtitle-toolkit.svg" alt="MCP agent-readiness"></a>
.. image:: https://glimind.com/v1/readiness/badge/mcp-registry%2Ftop.toolboxes%2Fsubtitle-toolkit.svg :target: https://glimind.com/server/mcp-registry%2Ftop.toolboxes%2Fsubtitle-toolkit?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 sha256:9579822deb9d7690…, first seen 2026-10-17, included at leaf 14247 of 80,892. Version history · verify what your client received.
Compare: most reliable media servers · most reliable other servers
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 2026-10-27 19:02 UTC, the Toolboxes Subtitle Toolkit MCP server is up with a Glimind reliability score of 97/100 (grade A). Over the last 30 days it answered 100% of Glimind's liveness checks. It had 1 outage in 90 days, with a median recovery of 2 minutes.
Toolboxes Subtitle Toolkit MCP server advertises 8 tools, including check_subtitle_timing, clean_subtitles, convert_subtitle, fix_subtitle_encoding, merge_subtitles.
Point your MCP client at this streamable-http endpoint: https://subtitle-mcp.toolboxes.top/mcp
Glimind scanned all 8 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.