From Excel Foundry
Inspect, create, diff, document, audit, automate, and sync Excel workbook artifacts across package-readable workbooks, safe copies, installed desktop Excel, Microsoft Graph workbook APIs, Office Scripts/Add-in hosts, and Fabric/Power BI semantic models. Use when the task involves: (1) workbook lifecycle or direct commands such as inspect/diagnose/capabilities/create/diff/save-as/ convert/repair/compatibility/document-inspect, sheet/table/range/cell/name edits, links, safe export, formulas, calc, Solver, scenarios, forecasts, data tables, or automation artifacts, (2) package inventory or preservation for charts, pivots, slicers, timelines, Power Query, connections, XML/custom XML, OLE, signatures, encryption, sensitivity, VBA/package metadata, or embedded media, (3) desktop Excel host operations, (4) Graph, Office Scripts, Office.js/Add-in, Fabric, Power BI, DAX, TMDL, PBIP, or semantic-model operations, or (5) manifest/artifact synchronization, audit bundles, parity reports, and portable workbook manifests.
How this skill is triggered — by the user, by Claude, or both
Slash command
/excel-foundry:excel-foundryThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Use this skill as the governance and routing layer for Excel workbook work and
DEVELOPMENT.mdagents/openai.yamlreferences/conditional-formatting.mdreferences/excel-capability-matrix.jsonreferences/idempotency.mdreferences/manifest.mdreferences/output-contract.mdreferences/power-query.mdreferences/protocol-audit.mdreferences/protocol-manifest-sync.mdreferences/query.mdreferences/runtime-compatibility.mdreferences/task-router.mdreferences/testing.mdreferences/usage.mdreferences/vba-project.mdreferences/wsl-linux.mdscripts/ExcelFoundry.Common.ps1scripts/ExcelSync.Common.ps1scripts/excel-foundryUse this skill as the governance and routing layer for Excel workbook work and
related cloud or semantic-model surfaces. Route by user intent first, then by
workbook format, surface support, host availability, destructive risk, and
secret handling. Prefer the narrowest reference that matches the task, then run
the launcher shape <resource> <action> [flags].
<skills-file-root>/references/task-router.md when deciding whether the
task is authoring, package CRUD, existing-workbook edit, desktop Excel,
cloud workbook, Office automation, semantic/BI, or preserve-only work.<skills-file-root>/references/query.md; use workbook capabilities --deep
or workbook capabilities --deep --documentation when support level,
backend, closure reason, or documentation anchors matter.<skills-file-root>/references/protocol-audit.md.<skills-file-root>/references/query.md for command groups, flags, and
examples.<skills-file-root>/references/runtime-compatibility.md before choosing
package, desktop Excel, Graph, Office Scripts, Office.js/Add-in, Fabric, or
Power BI routes.<skills-file-root>/references/protocol-manifest-sync.md.<skills-file-root>/references/output-contract.md.<skills-file-root>/DEVELOPMENT.md.references/excel-capability-matrix.json as the only support ledger.
It defines each surface's support level, route, backend lanes, closure
reason, host requirements, secret handling, and documentation anchors..xlsx and .xlsm workbooks
when the target surfaces are package-supported.xlsxwriter or
openpyxl for new polished .xlsx workbooks when visual layout, charts,
tables, formulas, validation, and formatting matter more than preserving
existing opaque workbook internals. Use Excel Foundry inspection and
artifacts to govern and verify the result..xls, .xlsb, conversion, repair, refresh,
VBA, Power Query mutation, connections, pivots, slicers, timelines, rich
visual objects, controls, scenarios, Goal Seek, and other surfaces whose
matrix route requires the installed host.--dry-run, --what-if, --apply, or destructive-intent flags as the
command requires.<skills-file-root>/scripts/excel-foundry<skills-file-root>/scripts/excel-foundry.cmd<skills-file-root>/scripts/excel-foundry.ps1<skills-file-root>/scripts/excel_workbook_sync.py<skills-file-root>/scripts/excel_workbook_package.pyGuides creation, editing, and verification of skills for AI coding agents using test-driven development with subagent scenarios. Use when authoring or debugging skills.
npx claudepluginhub devguyrash/agent-tooling --plugin excel-foundry