looker-to-sigma

looker-to-sigma is a plugin for Claude Code from twells89/sigma-migration-skills. Its manifest loads nothing; the 2 skills it bundles cost 276 tokens per session together, scanned A, original, MIT.

A migration toolkit for moving Looker’s LookML data models and dashboards to Sigma, another analytics platform. It can use Looker’s API or offline LookML files, convert the model, build the workbook, and compare results with Looker and the warehouse.

In plain words
What is it for?
It discovers Looker models and dashboards, converts LookML and dashboard data, creates Sigma data models and workbooks, and performs three-way parity checks.
Why use it?
It reduces the manual work of translating Looker definitions and dashboard layouts while checking that the migrated analytics remain consistent.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit It discovers Looker models and dashboards, converts LookML and dashboard data, creates Sigma data models and workbooks, and performs three-way parity checks.

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Install in Claude Code
/plugin marketplace add twells89/sigma-migration-skills/plugin install looker-to-sigma
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/twells89/sigma-migration-skills

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for looker-to-sigma

README.md
[![agentmods](https://agentmods.dev/badge/plugins/twells89/sigma-migration-skills/looker-to-sigma/github.svg)](https://agentmods.dev/plugins/twells89/sigma-migration-skills/looker-to-sigma)
Your own site
<a href="https://agentmods.dev/plugins/twells89/sigma-migration-skills/looker-to-sigma"><img src="https://agentmods.dev/badge/plugins/twells89/sigma-migration-skills/looker-to-sigma/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for looker-to-sigma

Your own site · 80×15
<a href="https://agentmods.dev/plugins/twells89/sigma-migration-skills/looker-to-sigma"><img src="https://agentmods.dev/badge/plugins/twells89/sigma-migration-skills/looker-to-sigma.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 2 skills cost 276 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

looker-to-sigma scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/looker-to-sigma/.claude-plugin/plugin.json · 21 lines

What it actually says

{
  "$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
  "name": "looker-to-sigma",
  "displayName": "Looker \u2192 Sigma",
  "version": "1.2.33",
  "description": "Migrate Looker (LookML semantic model + dashboards) to Sigma \u2014 discovery via the Looker REST API 4.0 / Looker MCP (or offline .lkml), LookML\u2192data-model conversion via convert_lookml_to_sigma, dashboard\u2192workbook build from the Looker Dashboard API JSON (UDD or LookML dashboards), build via the Sigma REST API, and 3-way parity verification (Looker vs Sigma vs warehouse).",
  "author": {
    "name": "Thomas Wells"
  },
  "license": "MIT",
  "keywords": [
    "looker",
    "lookml",
    "sigma",
    "migration",
    "bi",
    "converter"
  ],
  "skills": "./skills/"
}
Contents

What it installs

The manifest is a name and a version. 2 skills travel with it, and installing the plugin installs all of them — 276 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago Changed b40dff692db2
  2. 8d ago Changed 4dbb39bdb74e
  3. 12d ago First seen · 21 lines scan A 1f8f56ef5f7c

Subscribe to this mod's changes

looker-to-sigma is a plugin published in the GitHub repository twells89/sigma-migration-skills (16 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.