Fabric Copy Job
Use for Fabric Data Factory Copy job — the no-pipeline data-movement item (`CopyJob`) for many-source→many-destination ingestion. Covers copy modes (full vs incremental), watermark-based incremental (GA: ROWVERSION/datetime/int columns) vs CDC-based incremental (Preview: captures inserts/updates/deletes, SCD Type 2, Merge default), the CDC-vs-watermark rubric, switching full↔incremental via `jobM…
Fabric Tmdl Api
Use for the Fabric Semantic Model Definition API — createItemWithDefinition / getDefinition / updateDefinition. Covers the two-audience rule (Fabric API for definitions, Power BI API for refresh/data sources/permissions), why updateDefinition MUST include ALL parts (modified and unmodified) or they're deleted, why you NEVER include .platform in definition payloads, base64 encoding requirement, LR…
Fabric Spark
Use for PySpark / Spark in Microsoft Fabric notebooks. Covers the no-external-HTTP constraint (land data in Files/ first), abfss:// URI format for OneLake (GUIDs not names), `notebookutils.runtime.context` for identity lookups vs `spark.conf.*` for session tuning, mssparkutils, lakehouse `enableSchemas` immutability and cross-lakehouse 3-part names, table maintenance (OPTIMIZE/VACUUM/V-Order) imp…
Pbir Conditional Formatting
Use when adding conditional formatting to a Power BI visual — per-point bar/column colors, diverging gradients, line segment colors, marker transparency, data bars, conditional icons. Three approaches — measure-based (extension measure dataType Text returning theme tokens good/bad/neutral/minColor/midColor/maxColor), FillRule linearGradient2/linearGradient3, rule-based Conditional.Cases. Plus dat…
Fabric Database
Use when working with Fabric SQL Database — the Azure SQL Database hosted inside a Fabric workspace. Key point: this is a DIFFERENT engine from Fabric Warehouse and does NOT share its restrictions. nvarchar/datetime/money/triggers/MERGE/ALTER COLUMN/recursive CTEs/FOR XML/temporal tables/full-text search all work. Entra ID auth only (no SQL auth), token audience `database.windows.net`, tables aut…
Fabric Error Handling
Use when writing error handling in Fabric notebooks — the Tier 1 (setup, preconditions, hard-fail, raise immediately) vs Tier 2 (bulk operations, soft-fail, track per-item, print summary) convention. Covers the canonical `results = {succeeded, skipped, failed}` shape, the STRICT=False default for scheduled runs, STRICT=True for CI/orchestration, per-item metrics with a parallel per_item list, bou…
Fabric Variable Library
Use for Microsoft Fabric Variable Library — config-as-code for parameterizing notebooks and pipelines across environments. Covers definition parts (variables.json, settings.json, valueSets/<name>.json — VariableLibrary does NOT support the `format` field, omit entirely), supported variable types (String, Boolean, Number, Integer, DateTime, ItemReference), notebook consumption via `notebookutils.v…
Fabric Eventhouse
Use for Microsoft Fabric Eventhouse / KQL Database. Covers connection (cluster URI via `kqlDatabases` REST, kusto.kusto.windows.net audience, az rest temp-file for `|` escaping), authoring (`.create-merge` for safe schema evolution, ingestion inline/set-or-append/from-storage `;impersonate`, streaming policy, CSV/JSON mappings, retention/caching/partitioning/merge policies, materialized views + u…
Fabric Data Agent
Use when configuring Microsoft Fabric Data Agents (GA March 2026) — conversational Q&A built on Azure OpenAI Assistant APIs over Lakehouse / Warehouse / KQL / Semantic Model / Fabric SQL DB / Mirrored DB / Ontology / Microsoft Graph (≤5 sources per agent). Covers the four configuration layers (agent instructions, data source instructions, descriptions for routing, example queries ≤100/source), wh…
Fabric Rest Api
Use for Microsoft Fabric REST API patterns: listing and paginating workspaces/items with continuationToken/continuationUri, calling /v1/workspaces/{wsId}/items, handling long-running operations (202 Accepted, Location header, polling /v1/operations/{id}, Retry-After, /result), the runtime item ID vs .platform logicalId distinction (PowerBIEntityNotFound root cause), the 201-or-202 create pattern,…
Drift Audit
Audit the Microsoft Fabric and Power BI What's New docs source for drift since a prior commit SHA or date — detect new GA / preview features, syntax additions, deprecations, and tooling changes that affect existing skills, rules, CLAUDE.md, or the MCP template. Use when running a monthly Fabric / Power BI staleness check, evaluating recent Microsoft data-platform features, or auditing what change…
Pbir Filters
Use when authoring filter bodies in a Power BI PBIR report at report.json, page.json, or visual.json filterConfig.filters. Covers scopes (Report, Page, Visual — visual filter is sibling of `visual` NOT nested), filter types (Categorical, Advanced, TopN, VisualTopN, RelativeDate, RelativeTime, Tuple), filter body shape (Version 2, From[] aliases, Where[] using SourceRef.Source NEVER Entity), Categ…
Fabric Ai Functions
Use for Microsoft Fabric AI Functions (Data Science) — one-line LLM transformations on pandas and PySpark DataFrames in Fabric notebooks: `ai.analyze_sentiment`, `ai.classify`, `ai.extract`, `ai.embed`, `ai.summarize`, `ai.translate`, `ai.fix_grammar`, `ai.generate_response`, `ai.similarity`. Covers the two import paths (`synapse.ml.aifunc` pandas single-node vs `synapse.ml.spark.aifunc` PySpark…
Fabric Semantic Model Ai Instructions
Use when configuring AI instructions on a Power BI semantic model — the 10,000-character blob attached via `Prep data for AI` → `Add AI instructions` in Desktop or the service. Applies everywhere Copilot uses the model (reports, Q&A, Copilot pane). Covers what belongs in the blob (business context, terminology, date rules, default tables/measures, relationship navigation, hard rules, disambiguati…
Pbip Project Structure
Use when working with PBIP (Power BI Project) folders — the text-based developer format that replaces binary .pbix. Covers folder layout (.SemanticModel/, .Report/, definition/, StaticResources/), entry-point files (.pbip, .pbir, .pbism, .platform), byPath vs byConnection (thick vs thin report), .pbism version 4.2 / TMDL signalling, PBIX-to-PBIP extraction (OPC ZIP, UTF-16LE vs UTF-8 internals),…
Fabric Cli
Use for the Fabric CLI `fab` (v1.5 GA March 2026, `pip install ms-fabric-cli`, Python 3.10–3.13, pre-installed in Fabric Notebooks) — filesystem-style CLI over Fabric + Power BI REST. Covers path syntax (Workspace.Workspace/Item.ItemType, .ItemType suffix mandatory, hidden roots .capacities/.connections/.domains/.gateways), auth reuse from `az login`, navigation (ls/cd/pwd/exists/get/desc/find),…
Pbir Report Workflow
Use when scaffolding or building a new Power BI report end-to-end from a published semantic model using the pbir CLI. Covers the 10-step workflow — KPI / filter / granularity requirements, model field discovery via pbir model, pbir new report scaffold, renaming the default Page 1 instead of adding a new one, 3-30-300 visual hierarchy for three viewing distances (glance / scan / investigate), layo…
Pbir Themes
Use when authoring or editing a Power BI report theme JSON under Report.Report/StaticResources/SharedResources/BaseThemes/ or RegisteredResources/. Covers top-level theme properties (name, dataColors palette, semantic colors background/foreground/tableAccent, sentiment good/bad/neutral/minimum/maximum/center, textClasses title/label/callout/header, visualStyles), inheritance (wildcard, per-visual…
Fabric Mlv
Use for Fabric Materialized Lake Views (MLVs) — `CREATE MATERIALIZED LAKE VIEW` Spark SQL (GA March 2026) + still-preview `@fmlv.materialized_lake_view` PySpark decorator on a schema-enabled lakehouse (Runtime 1.3). Covers CREATE / SHOW / ALTER RENAME / DROP / REFRESH FULL syntax, `CONSTRAINT ... CHECK ... ON MISMATCH DROP|FAIL` data quality rules, partitioning + TBLPROPERTIES, optimal refresh (s…
Fabric Security
Use for the Fabric security/permission model. Covers the layers (workspace roles Admin/Member/Contributor/Viewer, item-level Read/ReadData/ReadAll, OneLake security data access roles, SQL GRANT/DENY/REVOKE), Admin/Member/Contributor bypass of RLS/CLS/DDM, least-privilege pattern (Viewer + SQL GRANT), ReadData vs ReadAll distinction (SQL vs Spark/OneLake), the mode-dependent RLS/CLS enforcement ac…
Pbid Tom Live
Use for scripting an open Power BI Desktop model via its localhost msmdsrv.exe Analysis Services proxy — TOM (Microsoft.AnalysisServices.Tabular) for metadata, ADOMD.NET (AdomdConnection) for DAX. Covers PowerShell setup with retail.amd64 AMO/TOM + ADOMD NuGet DLLs, discovering the msmdsrv port (msmdsrv.port.txt / netstat), connecting via server Databases Model, SaveChanges / UndoLocalChanges, Ex…
Fabric Tmdl
TMDL (Tabular Model Definition Language) authoring rules for Fabric and Power BI semantic models. Use when editing .tmdl files, adding measures or columns to a semantic model, defining relationships or calculation groups, working in a PBIP definition/ folder, configuring Direct Lake partitions, or debugging TMDL validation errors. Covers syntax (tabs not spaces, /// descriptions, single-quoting n…
Fabric Auth
Use when authenticating to Microsoft Fabric APIs — getting 401 Unauthorized errors, choosing token audience/scope for Fabric REST, Power BI REST, OneLake, Warehouse/SQL, KQL, XMLA, or Azure ARM, or running `az login` / `az account get-access-token` / `az rest` for Fabric. Covers the full token-audience table, the OneLake-only `storage.azure.com/.default` requirement, `az login` flow variants (--a…
Pbir Visual Json
Use when editing visual.json inside a Power BI PBIR report's visuals/ folder. Covers top-level structure (name, position, visual vs visualGroup mutually exclusive, filterConfig sibling NOT child of visual, root-level isHidden for bookmark toggles), expression literal suffixes — string 'text', double 14D, integer 14L, decimal 2.4M, hex '#FF0000', datetime literal, null — with exceptions (transpare…
Pbir Bookmarks
Use when creating, editing, or wiring Power BI PBIR bookmarks in Report.Report/definition/bookmarks/ — bookmarks.json index and individual bookmark.json files. Covers bookmark structure (name hex ID matching items[], displayName, options, explorationState), options flags (targetVisualNames, suppressDisplay, suppressActiveSection, suppressData, applyOnlyToTargetVisuals), explorationState shape (ac…
Pbir Pages
Use when authoring or editing page.json / pages.json inside a Power BI PBIR report's definition/pages/ folder. Covers top-level page properties (name hex GUID vs displayName, displayOption as STRING not integer, width/height, type Default vs Tooltip, visibility AlwaysVisible vs HiddenInViewMode, verticalAlignment/horizontalAlignment), pages.json pageOrder + activePageName, canvas background vs ou…
Code Review
Review code for correctness, naming conventions, style, error handling, security, and scaling concerns. Use when reviewing code, checking a diff, auditing a function, or asking about code quality. Covers Python, PySpark, SQL, KQL, DAX, and data-engineering patterns.
Fabric Gotchas
Use when troubleshooting Microsoft Fabric — common errors: 401 (wrong token audience), 403 on Power BI API (Viewer role), 404 EntityNotFound on getDefinition (permissions masquerading), PowerBIEntityNotFound from pipeline/Variable Library (logicalId vs runtime ID confusion), Login failed (wrong Initial Catalog), 24556/24706 snapshot conflict, nvarchar/datetime/money errors (Warehouse unsupported…
Fabric Eventstream
Use for Microsoft Fabric Eventstream — the streaming-ingestion item routing CDC / Event Hubs / Kafka / IoT / HTTP / MQTT events into Lakehouse, Eventhouse, Activator, or derived streams, and how external apps produce events to a schema-associated custom endpoint. Covers source connectors (Azure SQL / SQL MI / PostgreSQL / MySQL / MongoDB / Cosmos DB CDC, Mirrored DB Delta CDF preview, Event Hubs…
Fabric Graph
Use for Microsoft Fabric Graph (the GraphModel item, GA June 2026) — a labeled property graph modeled over OneLake Delta tables and queried with GQL (ISO/IEC 39075), distinct from openCypher/Cypher and from the KQL graph operators in Eventhouse. Covers the GraphModel REST path and GQL Query API (`POST /v1/workspaces/{ws}/GraphModels/{id}/executeQuery?preview=true` — app errors return HTTP 200 wit…
Fabric Monitoring
Use for monitoring Fabric Warehouse queries — OPTION (LABEL = '...') for tracking, the queryinsights schema (exec_requests_history, exec_sessions_history, long_running_queries, frequently_run_queries), 30-day retention, 15-minute appearance lag, the `Invalid object name` gotcha on newly-created warehouses, and diagnosing slow/stale Lakehouse SQLEP reads under the new metadata-sync preview (`sys.d…
Pbir Cli
Use when running the pbir CLI (install via uv tool install pbir-cli) to inspect or edit local Power BI PBIR reports. Covers path syntax (Report.Report/Page.Page/Visual.Visual with required type suffixes, glob patterns, property dot-notation), verb noun groups — report / page / visual / filter / bookmark / theme / dax / fields / schema / profile / annotation / model — plus discovery verbs (ls / tr…
Fabric Warehouse
Use for T-SQL against Fabric Warehouse (NOT Fabric SQL Database — see fabric-database). Covers unsupported types (nvarchar/datetime/money/xml/tinyint/hierarchyid), unsupported features (FOR XML, recursive CTEs, triggers, CREATE USER, cursors), MERGE (GA Jan 2026), ALTER COLUMN (preview), schema evolution (ADD nullable / DROP COLUMN / sp_rename April 2025+, IDENTITY preview, transactional ALTER TA…