sigma-migration-skills: Instructions file for Codex

AGENTS.md

sigma-migration-skills AGENTS.md is an instructions file for Codex, OpenCode from twells89/sigma-migration-skills. It costs 2,894 tokens per session, scanned B, original, MIT.

Repository instructions for migration skills that move business-intelligence tools—such as Tableau or Power BI—to Sigma, an analytics platform.

In plain words
What is it for?
Use them to migrate reports and workbooks, assess whether a tenant is ready to migrate, verify warehouse results, and maintain the skill collection.
Why use it?
They explain how an agent should choose and run the right skill, follow its documented workflow, and keep migration results consistent.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: reads .claude/ paths; mentions Claude Code; mentions AGENTS.md.

This is twells89/sigma-migration-skills's own configuration. It tells Codex and OpenCode how to work on sigma-migration-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything sigma-migration-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to twells89/sigma-migration-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/twells89/sigma-migration-skills/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/twells89/sigma-migration-skills

Made for: Codex, OpenCode.

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Per session 2,894 This file is loaded in full into every session.
When invoked 2,894 The same file — it is already loaded in full.
Security scan B 2 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.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.02894 $0.02894
Opus 5 $0.01447 $0.01447
Sonnet 5 $0.00579 $0.00579
Haiku 4.5 $0.00289 $0.00289

Measured 5d ago against content hash cfc44700052e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade B, and why

sigma-migration-skills AGENTS.md scanned grade B with 2 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 5d 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

- `~/.claude/settings.json` — Claude Code auto-loads this into the env.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

bash -c 'eval "$(scripts/get-token.sh)"; <your curl using $SIGMA_API_TOKEN>'
AGENTS.md · 159 lines

How it starts

The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — sigma-migration-skills

Migration skills for moving BI tools (Tableau, Power BI, Qlik, ThoughtSpot, QuickSight, Looker, Cognos, MicroStrategy, Sisense, GoodData, Domo, Hex) to Sigma: per-tool converters (source → Sigma data model + workbook, with warehouse parity verification) and read-only assessments (tenant inventory → migration-readiness readout + shortlist).

This repo is packaged as a Claude Code plugin marketplace, but the skills are agent-neutral: each is a SKILL.md (instructions) plus scripts/ (Ruby/Python/ shell) and refs/. Any coding agent (Cursor, Cortex Code, etc.) can run them by reading the relevant SKILL.md and executing its scripts.

First-time / non-Claude agents: read docs/agent-entry.md for install shapes, companion sigma-authoring, path rules, and MCP stance.

How to use a skill

  1. Pick the skill from the index below that matches the user's intent. Prefer gold / live over foundation / scaffold unless the user is explicitly building out a scaffold.
  2. Read that skill's SKILL.md in full first — it is the source of truth for the phased workflow. The refs/*.md next to it cover details.
  3. Run its scripts from the skill directory (script paths are relative, e.g. scripts/setup.rb). cd into the skill dir, then invoke.
  4. Install / load the companion sigma-authoring plugin alongside any converter (sigma-workbooks + sigma-data-models).

Maturity labels (gold / live / foundation / scaffold) are defined in docs/agent-entry.md.

Skill index

Intent Skill Maturity Path (read its SKILL.md)
Convert a Tableau datasource/workbook → Sigma tableau-to-sigma gold plugins/tableau-to-sigma/skills/tableau-to-sigma/
Scope/assess a Tableau site for migration tableau-assessment live plugins/tableau-to-sigma/skills/tableau-assessment/
Land a Tableau published-datasource/extract in Snowflake or Databricks tableau-vds-to-cdw live plugins/tableau-to-sigma/skills/tableau-vds-to-cdw/
Convert a Power BI report + semantic model → Sigma (DAX translation) powerbi-to-sigma live plugins/powerbi-to-sigma/skills/powerbi-to-sigma/
Scope/assess a Power BI / Fabric tenant powerbi-assessment live plugins/powerbi-to-sigma/skills/powerbi-assessment/
Land an Import-mode Power BI model's data in Snowflake (before converting) powerbi-import-to-snowflake live plugins/powerbi-to-sigma/skills/powerbi-import-to-snowflake/
Convert a Qlik Sense / Qlik Cloud app → Sigma qlik-to-sigma live plugins/qlik-to-sigma/skills/qlik-to-sigma/
Scope/assess a Qlik Cloud tenant qlik-assessment foundation plugins/qlik-to-sigma/skills/qlik-assessment/
Convert a ThoughtSpot model + Liveboards → Sigma (TML) thoughtspot-to-sigma live plugins/thoughtspot-to-sigma/skills/thoughtspot-to-sigma/
Scope/assess a ThoughtSpot instance thoughtspot-assessment foundation plugins/thoughtspot-to-sigma/skills/thoughtspot-assessment/
Convert an Amazon QuickSight analysis/dashboard → Sigma quicksight-to-sigma foundation plugins/quicksight-to-sigma/skills/quicksight-to-sigma/
Scope/assess a QuickSight instance quicksight-assessment foundation plugins/quicksight-to-sigma/skills/quicksight-assessment/
Convert a Looker (LookML model + dashboards) → Sigma looker-to-sigma live plugins/looker-to-sigma/skills/looker-to-sigma/
Scope/assess a Looker instance looker-assessment live plugins/looker-to-sigma/skills/looker-assessment/
Convert an IBM Cognos data module + report → Sigma cognos-to-sigma live plugins/cognos-to-sigma/skills/cognos-to-sigma/
Scope/assess a Cognos Analytics instance cognos-assessment foundation plugins/cognos-to-sigma/skills/cognos-assessment/
Convert a MicroStrategy dossier + semantic model → Sigma microstrategy-to-sigma live plugins/microstrategy-to-sigma/skills/microstrategy-to-sigma/
Scope/assess a MicroStrategy (Strategy One) instance microstrategy-assessment foundation plugins/microstrategy-to-sigma/skills/microstrategy-assessment/
Convert a Sisense (ElastiCube / Live model + dashboards) → Sigma sisense-to-sigma live plugins/sisense-to-sigma/skills/sisense-to-sigma/
Scope/assess a Sisense instance sisense-assessment scaffold plugins/sisense-to-sigma/skills/sisense-assessment/
Convert a GoodData Cloud / .CN workspace (LDM + MAQL + insights + dashboards) → Sigma gooddata-to-sigma live plugins/gooddata-to-sigma/skills/gooddata-to-sigma/
Scope/assess a GoodData workspace gooddata-assessment live plugins/gooddata-to-sigma/skills/gooddata-assessment/
Convert a Domo dashboard (DataSets + Beast Modes + cards) → Sigma domo-to-sigma gold plugins/domo-to-sigma/skills/domo-to-sigma/
Scope/assess a Domo instance domo-assessment foundation plugins/domo-to-sigma/skills/domo-assessment/
Land Domo API/upload/sample DataSets in Snowflake (before converting) domo-import-to-snowflake foundation plugins/domo-to-sigma/skills/domo-import-to-snowflake/
Convert a Hex project (SQL/METRIC cells, EXPLORE charts, app layout) → Sigma hex-to-sigma live plugins/hex-to-sigma/skills/hex-to-sigma/
Scope/assess a Hex instance hex-assessment scaffold plugins/hex-to-sigma/skills/hex-assessment/
Convert a Mode Report (SQL Queries + Charts) → Sigma mode-to-sigma foundation plugins/mode-to-sigma/skills/mode-to-sigma/
Author / repair Sigma workbooks (canonical spec) sigma-workbooks live plugins/sigma-authoring/skills/sigma-workbooks/
Author / repair Sigma data models (canonical spec) sigma-data-models live plugins/sigma-authoring/skills/sigma-data-models/
Convert a Streamlit source project → Sigma streamlit-to-sigma gold plugins/streamlit-to-sigma/skills/streamlit-to-sigma/
Scope/assess a Streamlit instance streamlit-assessment scaffold plugins/streamlit-to-sigma/skills/streamlit-assessment/

Read the full file on GitHub · 159 lines

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. 5d ago Changed · +2 lines · +76 tokens per session cfc44700052e
  2. 9d ago First seen · 157 lines · 2,818 tokens per session scan B 50f4174ceb27

Subscribe to this mod's changes

sigma-migration-skills AGENTS.md is an instructions file published in the GitHub repository twells89/sigma-migration-skills (14 stars, last pushed today), licensed MIT. It adds 2,894 tokens to every session, about $0.0145 per session on Opus 5. A static security scan graded it B with 2 findings (reads agent configuration directories, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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