Docs: headline counts after wave 3 (513 / 523 functions, 504 working; catalog 266 / 290)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Brandon Thomas
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@ -197,7 +197,7 @@ egui frontend is a separate crate, so the UI can be swapped without touching the
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GridCraft is in **alpha**: the core workflow works end to end, but depth, fidelity and file
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compatibility are still rough. It covers 89% of the Excel ribbon commands in our catalog
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([`docs/parity-checklist.md`](docs/parity-checklist.md)) and 509 of Excel's 523 worksheet functions
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([`docs/parity-checklist.md`](docs/parity-checklist.md)) and 513 of Excel's 523 worksheet functions
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([`docs/function-parity.md`](docs/function-parity.md)); weighted by what Excel users rely on, we
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estimate it is about 50% ready for real work. Next up: XLSX fidelity on real-world files, very large
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workbooks and multi-threaded recalc, chart depth, text in every script, and `.xls` import. Stage,
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@ -2,7 +2,7 @@
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**Stage: alpha** · next: beta, ~25 points of "ready for real work" and ~160–240 h away
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> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-11 · **Change:** minor (community merges: worksheet functions 509 / 523, catalog 260 / 290) · **Target:** Microsoft Excel (Microsoft 365)
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> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-11 · **Change:** minor (community merges: worksheet functions 513 / 523, catalog 266 / 290) · **Target:** Microsoft Excel (Microsoft 365)
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GridCraft aims at full Microsoft Excel parity, and at being better in places: faster, open (XLSX
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is the native format), fully scriptable by agents (MCP, control channel, CLI), and on the web.
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@ -21,7 +21,7 @@ This page is the summary. The detail is in:
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| Number | Value | Kind |
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|---|---|---|
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| **Feature breadth** (weighted) | **~75%** | estimated, anchored on two measurements: ribbon catalog 260 / 290 (89.7%), worksheet functions 509 / 523 (97.3%; 500 working, 95.6%) |
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| **Feature breadth** (weighted) | **~75%** | estimated, anchored on two measurements: ribbon catalog 266 / 290 (91.7%), worksheet functions 513 / 523 (98.1%; 504 working, 96.4%) |
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| **Ready for real work** | **~50%** | estimated from written weights (51.6); [target-app-parity.md](docs/target-app-parity.md) |
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| **Mainstream practitioner** | **~50%** | estimated: typical analyst/finance user, weekly features, × 0.90 interaction × 0.92 stability × 0.88 file exchange; [method](docs/target-app-parity.md#mainstream-practitioner) |
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| **Essentials user** | **~63%** | estimated: core features only, × 0.92 launch/stability × 0.95 clarity × 0.90 opening sent files; [method](docs/target-app-parity.md#essentials-user) |
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@ -27,7 +27,7 @@ Excel's worksheet functions, category by category, against GridCraft's function
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## Coverage
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**Measured: 509 / 523 by name (97.3%); 500 / 523 working (95.6%).**
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**Measured: 513 / 523 by name (98.1%); 504 / 523 working (96.4%).**
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| Category | Excel | Ours | Working | % working | Missing |
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|---|---|---|---|---|---|
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@ -4,7 +4,7 @@
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Each entry is an Excel ribbon or menu command (feature names only). It counts as implemented when GridCraft registers a command with the same id. This measures breadth only; the overall assessment (depth, fidelity, effort) is in [target-app-parity.md](target-app-parity.md).
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**Overall: 260 / 290 commands implemented (89.7%).**
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**Overall: 266 / 290 commands implemented (91.7%).**
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| Tab | Implemented | Total | Parity |
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|---|---|---|---|
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@ -14,8 +14,8 @@ Each entry is an Excel ribbon or menu command (feature names only). It counts as
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| Draw | 4 | 4 | 100% |
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| Page Layout | 23 | 23 | 100% |
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| Formulas | 23 | 23 | 100% |
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| Data | 21 | 28 | 75% |
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| Review | 9 | 18 | 50% |
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| Data | 22 | 28 | 79% |
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| Review | 10 | 18 | 56% |
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| View | 20 | 20 | 100% |
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| Automate | 3 | 3 | 100% |
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| Table Design | 12 | 13 | 92% |
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@ -237,7 +237,7 @@ Implemented:
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- `formulas.calculateNow` Calculate Now (Calculation)
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- `formulas.calculateSheet` Calculate Sheet (Calculation)
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## Data (21 / 28, 75%)
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## Data (22 / 28, 79%)
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Implemented:
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@ -261,8 +261,8 @@ Implemented:
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- `data.subtotal` Subtotal (Outline)
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- `data.showDetail` Show Detail (Outline)
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- `data.hideDetail` Hide Detail (Outline)
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- `data.analysisToolPak` Data Analysis (Analysis)
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- `data.solver` Solver (Analysis)
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- `data.analysisToolPak` Data Analysis (Analysis)
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Missing:
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@ -272,8 +272,6 @@ Missing:
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- `data.relationships` Relationships (Data Tools)
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- `data.forecastSheet` Forecast Sheet (Forecast)
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- `data.analyzeData` Analyze Data (Analysis)
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- `data.solver` Solver (Analysis)
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- `data.analysisToolPak` Data Analysis (Analysis)
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## Review (10 / 18, 56%)
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@ -1,6 +1,6 @@
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# Target-app parity: GridCraft vs Microsoft Excel
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> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-11 · **Change:** minor (community merges: worksheet functions 509 / 523, catalog 260 / 290) · **Target:** Microsoft Excel (Microsoft 365)
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> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-11 · **Change:** minor (community merges: worksheet functions 513 / 523, catalog 266 / 290) · **Target:** Microsoft Excel (Microsoft 365)
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This is the authoritative parity assessment. [`ROADMAP.md`](../ROADMAP.md) summarizes it,
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[`gaps.md`](gaps.md) lists every shortfall, and the area checklists hold the detail:
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@ -13,9 +13,9 @@ generated ribbon checklist is [`parity-checklist.md`](parity-checklist.md).
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| Number | Value | Kind |
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|---|---|---|
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| Feature breadth (weighted by use) | **~75%** | estimated from the area table below; anchored on two measurements |
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| Ribbon and menu catalog | **260 / 290 (89.7%)** | measured: `cargo xtask parity` (`crates/engine/src/catalog.rs` ∩ registered command ids) |
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| Worksheet functions, by name | **509 / 523 (97.3%)** | measured: registered functions vs Microsoft's published function list (method below) |
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| Worksheet functions that do real work | **500 / 523 (95.6%)** | measured: excludes 9 stubs (7 CUBE functions, WEBSERVICE, FILTERXML) |
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| Ribbon and menu catalog | **266 / 290 (91.7%)** | measured: `cargo xtask parity` (`crates/engine/src/catalog.rs` ∩ registered command ids) |
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| Worksheet functions, by name | **513 / 523 (98.1%)** | measured: registered functions vs Microsoft's published function list (method below) |
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| Worksheet functions that do real work | **504 / 523 (96.4%)** | measured: excludes 9 stubs (7 CUBE functions, WEBSERVICE, FILTERXML) |
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| **Ready for real work** | **~50%** | estimated; written weights below (51.6 computed) |
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| **Mainstream practitioner** | **~50%** | estimated; [method](#mainstream-practitioner) (69.5 depth × 0.90 × 0.92 × 0.88 = 50.6) |
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| **Essentials user** | **~63%** | estimated; [method](#essentials-user) (80.2 depth × 0.92 × 0.95 × 0.90 = 63.1) |
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@ -80,7 +80,7 @@ performance 8, stability 8, localization 4, hardware 2, platforms 2, ecosystem 2
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| Area | Weight | Breadth | Ready | Hours | Evidence |
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|---|---|---|---|---|---|
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| Formula language and calculation | 18 | ~92% | ~72% | 20–30 | A1/R1C1 parser, reference adjustment, dependency-graph recalc, dynamic arrays and `#SPILL!`, `A1#`, LET/LAMBDA and helpers, structured references, names, 3-D references. Open correctness bugs: 15-digit equality (#57), stale spills after structural edits and cleared blockers (#133, #139), 3-D span endpoint deletion (#140), sheet rename and qualified names (#134). Single-threaded |
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| Worksheet functions | 12 | 97.3% (measured) | ~82% | 16–26 | 509 / 523 names, 500 working. Missing: FORECAST.ETS family, GETPIVOTDATA, IMAGE plus cloud functions. No conformance suite against Excel-computed oracles; edge-case bugs keep surfacing (#137, #138). [function-parity.md](function-parity.md) |
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| Worksheet functions | 12 | 98.1% (measured) | ~82% | 16–26 | 513 / 523 names, 504 working. Missing: GETPIVOTDATA, IMAGE plus cloud functions. No conformance suite against Excel-computed oracles; edge-case bugs keep surfacing (#137, #138). [function-parity.md](function-parity.md) |
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| Editing, navigation, clipboard, fill | 12 | ~90% | ~70% | 15–25 | Point mode, F4, AutoComplete, Paste Special, AutoFill, Flash Fill, Find/Replace, Go To Special. Bugs: rectangular drag-select (#28), monthly fill (#132), cut across sheets (#128), Insert Copied Cells missing (#21), key tips only on part of the Home tab (#43; #33, #49). [ui-parity.md](ui-parity.md) |
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| Cell formatting, styles, conditional formatting | 10 | ~95% | ~80% | 8–14 | Full number-format language, borders, 47 cell styles, 60 table styles, all CF rule kinds including data bars, colour scales and icon sets. Gaps: font weights beyond regular/bold (#168), system fonts list (#4), themes |
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| Sort, filter, tables, validation, outline | 8 | ~82% | ~70% | 10–16 | Multi-level sort, AutoFilter, Advanced Filter, tables with totals, validation, outline, subtotals, consolidate. Bugs: subtotal header (#131), validation edits (#129), table style panic caught (#130); no slicers on tables |
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@ -4,7 +4,7 @@
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Interaction, controls and feel, against Excel. Part of [target-app-parity.md](target-app-parity.md).
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**UI/UX fidelity: ~55% ready, 50–80 h** (estimated). Ribbon command coverage is measured
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separately in [parity-checklist.md](parity-checklist.md) (260 / 290).
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separately in [parity-checklist.md](parity-checklist.md) (266 / 290).
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Sources: `crates/ui-egui/src` (ribbon, grid, editor, formula bar, dialogs, panes),
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`crates/engine/src/cmd` (shortcuts in command specs), the owner's black-box notes
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