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Create, retrieve, or modify a Sigma data model spec (the JSON/YAML semantic-layer definition with sources, columns, metrics, relationships, filters, controls, folder groupings, and column-level security) by calling the Sigma REST API directly. Use when the user wants to author a new data model from a description, export/inspect/download an existing model's spec, edit columns or metrics, change a model's source, add relationships or row-level filters, or otherwise round-trip a data model through code. Requires an SIGMA_API_TOKEN — obtain via the sigma-api skill first.
How this skill is triggered — by the user, by Claude, or both
Slash command
/sigma-computing:sigma-data-modelsThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Round-trip a Sigma data model spec — the JSON definition of pages, sources, columns, metrics, relationships, filters, controls, folder groupings, and column-level security — through the Sigma REST API.
Round-trip a Sigma data model spec — the JSON definition of pages, sources, columns, metrics, relationships, filters, controls, folder groupings, and column-level security — through the Sigma REST API.
Auth: Authenticate via the sigma-api skill first to set $SIGMA_BASE_URL and $SIGMA_API_TOKEN. This skill assumes both are already exported.
Requirements: curl, jq, base64. Your Sigma API credentials must have permission to create or edit data models, plus "Can edit" access on the destination folder (for create) or the existing data model (for update). If a request returns 403, ask your Sigma admin to confirm the credential's permissions.
Feature-specific JSON patterns live in reference/. Load each file when you identify the corresponding feature in the user's request — don't read every file up-front.
| File | When to load |
|---|---|
reference/columns.md | Calculated columns, formula columns, derived columns; renaming a column, changing a formula, warehouse-column ID conventions, column reference rules. |
reference/metrics.md | Metrics, aggregate measures, metric timelines, time-series / trend metrics; adding a metric to an existing table or changing aggregation. |
reference/relationships.md | Relationships, foreign-key linking, related tables, cross-table lookups; adding a relationship between an existing element and a new one (mixed-ID rule — see workflows/crud.md). |
reference/sources.md | Custom SQL sources, join sources, union sources, transpose sources; swapping a model's source kind on an existing model. |
reference/filters.md | Row filters, where clauses, date range filters, top-N; adding/removing a filter on an existing model. |
reference/folders-groupings.md | Folders, column groupings, column ordering, sort, organize columns; reordering existing columns. |
reference/column-level-security.md | Column-level security (CLS), data masking, restrict columns by team / user attribute; applying CLS to an existing column. |
reference/controls.md | List/dropdown, text input, text area, number input, number range, date, date range, slider, range slider, segmented, switch, checkbox, top-N controls; adding a control to an existing page. |
reference/formatting.md | Column or metric formatting — currency, percentage, date format, decimals, datetime; reformatting a column or metric on an existing model. |
| File | When to load |
|---|---|
reference/workflows/crud.md | Authoring a new model, retrieving an existing model's spec, or modifying / editing / adding to / changing the source of an existing model. Always load before any POST / GET / PUT against /v2/dataModels endpoints. Contains the ID-semantics contrast table (CREATE remap vs GET source-of-truth vs UPDATE preserve), full step-by-step CREATE / GET / UPDATE recipes, and the mixed-ID rule for relationships in updates. |
Cross-cutting rules. Per-workflow ID semantics (remap vs preserve vs mixed cross-references) live in reference/workflows/crud.md.
"page-1", "table-orders", "col-revenue"."inode-<tableId>/<COLUMN_NAME>" — use "<YOUR_TABLE_INODE>/<COL_NAME>" as a placeholder.id is the element ID; controlId is the formula reference name — keep them distinct.Call out any of these before presenting the final spec:
npx claudepluginhub sigmacomputing/sigma-agent-skills --plugin sigma-computingSearches MemPalace before answering questions about past work, people, projects, or prior decisions. Returns verbatim stored content instead of guessing from model memory.
Guides Payload CMS config (payload.config.ts), collections, fields, hooks, access control, APIs. Debugs validation errors, security, relationships, queries, transactions, hook behavior.
Implements vector databases with Pinecone, Weaviate, Qdrant, Milvus, pgvector for semantic search, RAG, recommendations, and similarity systems. Optimizes embeddings, indexing, and hybrid search.