Silvertongue
dev.silvertongue/silvertonguesilvertongue.devstreamable-httpv0.1.0Scanned
Famous writing voices for your agent. Find one, read how it was studied, write in it.
4 tools: 4 only read.
- Reads private data · 1
- Reads text others write · 1
- Can send data out · 0
- No findings
Anlyon alternative
Run the operations that matter as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
4 tools
Only reads 4Show 4 read-only tools
get_changesCompare the voice IDs your agent has cached with the current release: voices added, voices re-studied as a new edition, and voices removed.No findings
Why it is in this group
- The name "get_changes" says "get": a word for reading.
Description, as the server wrote it Compare the voice IDs your agent has cached with the current release: voices added, voices re-studied as a new edition, and voices removed. Pass an empty list to receive every voice as added.
Annotations the server declares
- title: Get changes
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
get_voiceGet one voice's full profile: its VOICE.md, every source studied with a note on what it shows, the observations drawn from them, a handwritten example, the licence and the attribut…Reads private dataNo findings
Why it is in this group
- The name "get_voice" says "get": a word for reading.
What it can reach
- private-dataThe description's first sentence says "get" and "note": it reads notes.
Description, as the server wrote it Get one voice's full profile: its VOICE.md, every source studied with a note on what it shows, the observations drawn from them, a handwritten example, the licence and the attribution line. Profiles are unofficial studies of public writing technique; the people named did not write or endorse them.
Annotations the server declares
- title: Get a voice
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
get_voice_packetGet the instructions for writing in one voice with your own model, for one format, length, platform, intensity and edge.No findings
Why it is in this group
- The name "get_voice_packet" says "get": a word for reading.
Description, as the server wrote it Get the instructions for writing in one voice with your own model, for one format, length, platform, intensity and edge. The packet carries the full VOICE.md, an exact length target fitted to the platform's limit, and the rules that keep the user's own facts and identity. It opens with a line that replaces any earlier voice, so switching voices mid-conversation is one call.
Annotations the server declares
- title: Get a voice packet
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
search_voicesSearch Silvertongue's famous writing voices by name, by lane (tech, celebrity, comedy, classics, politicians), or by what the writing should do: a roast, a launch post, a plain exp…Reads text others writeNo findings
Why it is in this group
- The name "search_voices" says "search": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "search" and "post": it reads posts, which other people can write.
Description, as the server wrote it Search Silvertongue's famous writing voices by name, by lane (tech, celebrity, comedy, classics, politicians), or by what the writing should do: a roast, a launch post, a plain explanation, a speech. Each result gives the voice ID, its lane, what the voice does, what was studied, its strengths and limits, and its status. Omit the query to list every voice, featured voices first.
Annotations the server declares
- title: Search voices
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged outbound.
- Reads private data1
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write1
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 0.1.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http silvertongue https://mcp.silvertongue.dev/mcpclaude mcp add --transport http silvertongue https://mcp.silvertongue.dev/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__silvertongue__search_voices",
"mcp__silvertongue__get_voice",
"mcp__silvertongue__get_voice_packet",
"mcp__silvertongue__get_changes"
],
"ask": [],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as silvertongue. Review it before you use it.
Capability tags behind 2 rules
- mcp__silvertongue__search_voices untrusted-input
- mcp__silvertongue__get_voice private-data
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/dev.silvertongue/silvertongue/verify?hash=13aabfc723f0173d5f75a2e043e029cfa3256327315c4d20b70a7413ed858e4a" | jq -e '.changed == false'Pinned hash 13aabfc723f0, from Oct 30, 2026, 01:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/dev.silvertongue/silvertongue/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/dev.silvertongue/silvertongue)Source: MCP Registry · repository. Synced Oct 30, 2026, 01:17 UTC.