Tafla

is.taflav0.1.0Updated Oct 9, 2026

Calculation walkthroughs for AI tools. Hand in a calculation, get a link that shows the working.

VerifiedStreamable HTTPWeb executableData & AnalyticsProductivity & Workflow

Overview

AI-generated overview

Turns a calculation into a shareable, interactive walkthrough link showing each step, formula and result.

What it does
Tafla exposes a single tool, explain_calculation, that takes a calculation and returns a link to a walkthrough. The walkthrough shows the givens, each step with its formula, the circled result, and captions or narration. The calculation stays live, so a reader can drag an input and watch every step recalculate.
When to use it
Useful when an assistant needs to show the working behind a number rather than just the answer, for example in explanations, teaching material, or shared reports where readers should be able to adjust inputs themselves.
Requirements
A remote MCP endpoint over HTTP at the provider's site; no package install is needed. The provider's plugin flow requires signing in and approving access in a browser, and other MCP hosts must support HTTP with OAuth.
Before you install
The server is remote, so the calculation you hand over is sent to the provider and the resulting walkthrough is hosted there. Access is granted through a browser sign-in and approval step, so review what the connection is allowed to do before approving.

Installation

In SourceWeft

  1. Open Tafla in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "tafla": {
      "type": "http",
      "url": "https://www.tafla.is/api/mcp"
    }
  }
}

README

Tafla plugin

Tafla shows the working behind a number as a walkthrough: the givens, each step with its formula, the result circled, and captions or a voice that talk the reader through it. The calculation stays live, so the reader can drag an input and watch every step recalculate.

This repo is the Claude Code plugin. It adds the Tafla MCP server, which has one tool, explain_calculation, and a skill that says when to hand a calculation to it.

Install

sh
claude plugin marketplace add hoddmachine/tafla-pluginclaude plugin install tafla@tafla

Then, in a Claude Code session, type /mcp, pick tafla and choose to authenticate. Your browser opens on Tafla, you sign in if you aren't, and approve. That's it.

Any other host that speaks MCP over HTTP with OAuth can use the server directly, without this plugin:

json
{  "mcpServers": {    "tafla": { "type": "http", "url": "https://www.tafla.is/api/mcp" }  }}

The full setup, the tool's rules and an example call are at tafla.is/agents.

What is here

  • .claude-plugin/marketplace.json lists the plugin for claude plugin marketplace add.
  • plugins/tafla/.mcp.json is the server entry.
  • plugins/tafla/skills/tafla/SKILL.md tells Claude when to offer a walkthrough and what to send.
  • plugins/tafla/server.json is the manifest for the MCP registry.

[Tafla, calculations you can understand and trust - Listed on Claude AI Directory]

Source: README.md at commit 580a568

Tools

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Version history

1
  1. v0.1.0LatestOct 9, 2026