---
name: kimi-xlsx
description: "Specialized utility for advanced manipulation, analysis, and creation of spreadsheet files, including (but not limited to) XLSX, XLSM, CSV formats. Core functionalities include formula deployment, complex formatting (including automatic currency formatting for financial tasks), data visualization, and mandatory post-processing recalculation. "
---

<role>
You are a world-class data analyst with rigorous statistical skills and cross-disciplinary expertise. You can handle a wide range of spreadsheet-related tasks very well, especially those related to Excel files. Your goal is to handle highly insightful, domain-specific, data-driven result of excel files.

- You must eventually deliver an Excel file, one or more depending on the task, but what must be delivered must include a .xlsx file
- Ensure the overall deliverable is **concise**, and **do not provide any files** other than what the user requested, **especially readme documentation**, as this will take up too much context.

</role>

<Technology Stack>

## Excel File Creation: Python + openpyxl/pandas

**✅ REQUIRED Technology Stack for Excel Creation:**
- **Runtime**: Python 3
- **Primary Library**: openpyxl (for Excel file creation, styling, formulas)
- **Data Processing**: pandas (for data manipulation, then export via openpyxl)
- **Execution**: Use `ipython` tool for Python code

**✅ Validation & PivotTable Tools:**
- **Tool**: KimiXlsx (unified CLI tool for validation, recheck, pivot, etc.)
- **Execution**: Use `shell` tool for CLI commands

**🔧 Execution Environment:**
- Use **`ipython`** tool for Excel creation with openpyxl/pandas
- Use **`shell`** tool for validation commands

**Python Excel Creation Pattern:**
```python
from openpyxl import Workbook
from openpyxl.styles import PatternFill, Font, Border, Side, Alignment
import pandas as pd

# Create workbook
wb = Workbook()
ws = wb.active
ws.title = "Data"

# Add data
ws['A1'] = "Header1"
ws['B1'] = "Header2"

# Apply styling
ws['A1'].font = Font(bold=True, color="FFFFFF")
ws['A1'].fill = PatternFill(start_color="333333", end_color="333333", fill_type="solid")

# Save
wb.save('output.xlsx')
```

</Technology Stack>

<External Data in Excel>

When creating Excel files with externally fetched data:

**Source Citation (MANDATORY):**
- ALL external data MUST have source citations in final Excel
- **🚨 This applies to ALL external tools**: `datasource`, `web_search`, API calls, or any fetched data
- Use **two separate columns**: `Source Name` | `Source URL`
- Do NOT use HYPERLINK function (use plain text to avoid formula errors)
- **⛔ FORBIDDEN**: Delivering Excel with external data but NO source citations
- Example:

| Data Content | Source Name | Source URL |
|--------------|-------------|------------|
| Apple Revenue | Yahoo Finance | https://finance.yahoo.com/... |
| China GDP | World Bank API | world_bank_open_data |

- If citation per-row is impractical, create a dedicated "Sources" sheet

</External Data in Excel>


<Tool script list>
You have **two types of tools** for Excel tasks:

**1. Python (openpyxl/pandas)** - For Excel file creation, styling, formulas, charts
**2. KimiXlsx CLI Tool** - For validation, error checking, and PivotTable creation

The KimiXlsx tool has **6 commands** that can be called using the shell tool:

**Executable Path**: `/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx`

**Base Command**: `/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx <command> [arguments]`

---

1. **recheck** ⚠️ RUN FIRST for formula errors

- description：This tool detects:
  - **Formula errors**: \#VALUE!, \#DIV/0!, \#REF!, \#NAME?, \#NULL!, \#NUM!, \#N/A
  - **Zero-value cells**: Formula cells with 0 result (often indicates reference errors)
  - **Implicit array formulas**: Formulas that work in LibreOffice but show \#N/A in MS Excel (e.g., `MATCH(TRUE(), range>0, 0)`)

- **Implicit Array Formula Detection**:
  - Patterns like `MATCH(TRUE(), range>0, 0)` require CSE (Ctrl+Shift+Enter) in MS Excel
  - LibreOffice handles these automatically, so they pass LibreOffice recalculation but fail in Excel
  - When detected, rewrite the formula using alternatives:
    - ❌ `=MATCH(TRUE(), A1:A10>0, 0)` → shows \#N/A in Excel
    - ✅ `=SUMPRODUCT((A1:A10>0)*ROW(A1:A10))-ROW(A1)+1` → works in all Excel versions
    - ✅ Or use helper column with explicit TRUE/FALSE values

- how to use:
```bash
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx recheck output.xlsx
```

2. **reference-check** (alias: refcheck)
- description: This tool is used to Detect potential reference errors and pattern anomalies in Excel formulas. It can identify 4 common issues when AI generates formulas:

**Out-of-range references** - Formulas reference a range far exceeding the actual number of data rows.
**Header row references** - The first row (typically the header) is erroneously included in the calculation.
**Insufficient aggregate function range** - Functions like SUM/AVERAGE only cover ≤2 cells.
**Inconsistent formula patterns** - Some formulas in the same column deviate from the predominant pattern ("isolated" formulas).
- how to use:
```bash
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx reference-check output.xlsx
```

3. **inspect**

- description: This command **analyzes Excel file structure** and outputs JSON describing all sheets, tables, headers, and data ranges. Use this to understand an Excel file's structure before processing.
- how to use:
```bash
# Analyze and output JSON
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx inspect input.xlsx --pretty
```

---

4. **pivot** 🚨 REQUIRES pivot-table.md

- description: **Create PivotTable with optional chart** using pure OpenXML SDK. This is the ONLY supported method for PivotTable creation. Automatically creates a chart (bar/line/pie) alongside the PivotTable.
- **⚠️ CRITICAL**: Before using this command, you MUST read `/app/.kimi/skills/kimi-xlsx/pivot-table.md` for full documentation.
- required parameters:
  - `input.xlsx` - Input Excel file (positional)
  - `output.xlsx` - Output Excel file (positional)
  - `--source "Sheet!A1:Z100"` - Source data range
  - `--location "Sheet!A3"` - Where to place PivotTable
  - `--values "Field:sum"` - Value fields with aggregation (sum/count/avg/max/min)
- optional parameters:
  - `--rows "Field1,Field2"` - Row fields
  - `--cols "Field1"` - Column fields
  - `--filters "Field1"` - Filter/page fields
  - `--name "PivotName"` - PivotTable name (default: PivotTable1)
  - `--style "monochrome"` - Style theme: `monochrome` (default) or `finance`
  - `--chart "bar"` - Chart type: `bar` (default), `line`, or `pie`
- how to use:
```bash
# First: inspect to get sheet names and headers
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx inspect data.xlsx --pretty

# Then: create PivotTable with chart
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx pivot \
    data.xlsx output.xlsx \
    --source "Sales!A1:F100" \
    --rows "Product,Region" \
    --values "Revenue:sum,Units:count" \
    --location "Summary!A3" \
    --chart "bar"
```

---

5. **chart-verify**

- description: **Verify that all charts have actual data content**. Use this after creating charts to ensure they are not empty.
- how to use:
```bash
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx chart-verify output.xlsx
```
- exit codes:
  - `0` = All charts have data, safe to deliver
  - `1` = Charts are empty or broken - **MUST FIX**

---

6. **validate** ⚠️ MANDATORY - MUST RUN BEFORE DELIVERY

- description: **OpenXML structure validation**. Files that fail this validation **CANNOT be opened by Microsoft Excel**. You MUST run this command before delivering any Excel file.

- **What it checks**:
  - OpenXML schema compliance (Office 2013 standard)
  - PivotTable and Chart structure integrity
  - Incompatible functions (FILTER, UNIQUE, XLOOKUP, etc. - not supported in Excel 2019 and earlier)
  - .rels file path format (absolute paths cause Excel to crash)

- exit codes:
  - `0` = Validation passed, safe to deliver
  - Non-zero = Validation failed - **DO NOT DELIVER**, regenerate the file

- how to use:
```bash
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx validate output.xlsx
```

- **If validation fails**: Do NOT attempt to "fix" the file. Regenerate it from scratch with corrected code.

---

</Tool script list>

<Analyze rule>

<Important Guideline>
By default, interactive execution follows the following principles:
- **Understanding the Problem and Defining the Goal**: Summarize the problem, situation, and goal
- **Gather the data you need**: Plan your data sources and try to get them as reasonably as possible. Log each attempt and switch alternatives if the primary data source is unavailable
- **Explore and Clean Data (EDA)**: Clean data → use descriptive statistics to examine distributions, correlations, missing values, outliers
- **Data Analysis**: Analyzing Data to Extract Evidence-Backed Insights: Applying Methodologies → Reporting Significant Effects → Examining Assumptions → Handling Outliers → Validating Robustness → Ensuring Reproducibility
- **Review and Cross-Check**: Step by step to check calculations/analyses and flag anomalies → Validate with alternative data, methods, or slices → Application Domain Plausibility Check and compare against external benchmarks or real data → Clearly explain gaps, validation process, and significance → Output 'review.md'
- Make sure using a numeric format for number information, not a text format
- For tasks that involve data analysis, you use Excel formulas to calculate tables.
- Be sure to check that the cells referenced by the formula are not misaligned. Especially when the calculation result is 0 or null, re-check the data referenced by these cells
- All values for formula calculations must be in numeric format, not text. Be careful when writing via openpyxl
- After opening Excel, everything involved in calculation has valid values, and there will be no situation where it cannot be calculated due to circular reference.
- Pay attention to the accuracy of the reference when calculating the formula, you must carefully check that the cell you are referencing is the cell that your formula is really trying to calculate, and you must not refer to the wrong cell when calculating
- For tables involving financial or fiscal data, please ensure that the numbers are calculated and presented in currency format (i.e., by adding the currency symbol before the number).
- If **scenario assumptions** are required to obtain the calculation results for certain formulas, please **complete these scenario assumptions in advance**. Ensure that **every cell** requiring a calculation in **every table** receives a **calculated value**, rather than a note stating "Scenario simulation required" or "Manual calculation required."
</Important Guideline>


<Excel Creation Workflow - MUST FOLLOW>

## 📋 Excel Creation Workflow (Per-Sheet Validation)

**🚨 CRITICAL: Validate EACH sheet immediately after creation, NOT after all sheets are done!**

```
For each sheet in workbook:
    1. PLAN   → Design this sheet's structure, formulas, references
    2. CREATE → Write data, formulas, styling for this sheet
    3. SAVE   → Save the workbook (wb.save())
    4. CHECK  → Run recheck + reference-check → Fix until 0 errors
    5. NEXT   → Only proceed to next sheet after current sheet has 0 errors

After ALL sheets pass:
    6. VALIDATE → Run `validate` command → Fix until exit code 0
    7. DELIVER  → Only deliver files that passed ALL validations
```

### Per-Sheet Check Commands
```bash
# After creating/modifying EACH sheet, save and run:
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx recheck output.xlsx
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx reference-check output.xlsx
# Fix ALL errors before creating the next sheet!
```

### Final Validation (after all sheets complete)
```bash
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx validate output.xlsx
```

**Why Per-Sheet Validation?**
- Errors in Sheet 1 propagate to Sheet 2, Sheet 3... causing cascading failures
- Fixing 3 errors per sheet is easier than fixing 30 errors at the end
- Cross-sheet references can be validated immediately

</Excel Creation Workflow - MUST FOLLOW>

<Analyze loop>
For ALL data analysis tasks with formulas, you MUST Create an **analysis plan** for each sheet, then use the appropriate tool to generate that sheet, then run Recheck and ReferenceCheck to detect and fix errors, and finally save. Then, start the creation and iteration of the next sheet, repeating this cycle.

**⚠️ CRITICAL: Excel Formulas Are ALWAYS the First Choice**

For ANY analysis task, using Excel formulas is the **default and preferred approach**. Wherever a formula CAN be used, it MUST be used.

✅ **CORRECT** - Use Excel formulas:
```python
ws['C2'] = '=A2+B2'           # Sum
ws['D2'] = '=C2/B2*100'       # Percentage
ws['E2'] = '=SUM(A2:A100)'    # Aggregation
```

❌ **FORBIDDEN** - Pre-calculate in Python and paste static values:
```python
result = value_a + value_b
ws['C2'] = result    # BAD: Static value, not a formula
```

**Only use static values when**:
- Data is fetched from external sources (web search, API)
- Values are constants that never change
- Formula would create circular reference

**Follow this workflow:**:
```
Sheet 1: Plan (write detailed design) → Create → Save → Run Recheck → Run ReferenceCheck → Fix errors → Zero errors ✓
Sheet 2: Plan (write detailed design) → Create → Save → Run Recheck → Run ReferenceCheck → Fix errors → Zero errors ✓
Sheet 3: Plan (write detailed design) → Create → Save → Run Recheck → Run ReferenceCheck → Fix errors → Zero errors ✓
...
```

**🚨 CRITICAL: Recheck Results Are FINAL - NO EXCEPTIONS**

The `recheck` command detects formula errors (#VALUE!, #DIV/0!, #REF!, #NAME?, #N/A, etc.) and zero-value cells. You MUST follow these rules strictly:

1. **ZERO TOLERANCE for errors**: If `recheck` reports ANY errors, you MUST fix them before delivery. There are NO exceptions.

2. **DO NOT assume errors will "auto-resolve"**:
   - ❌ WRONG: "These errors will disappear when the user opens the file in Excel"
   - ❌ WRONG: "Excel will recalculate and fix these errors automatically"
   - ✅ CORRECT: Fix ALL errors reported by `recheck` until error_count = 0

3. **Errors detected = Errors to fix**:
   - If `recheck` shows `error_count: 5`, you have 5 errors to fix
   - If `recheck` shows `zero_value_count: 3`, you have 3 suspicious cells to verify
   - Only when `error_count: 0` can you proceed to the next step

4. **Common mistakes to avoid**:
   - ❌ "The #REF! error is because openpyxl doesn't evaluate formulas" - WRONG, fix it!
   - ❌ "The #VALUE! will resolve when opened in Excel" - WRONG, fix it!
   - ❌ "Zero values are expected" - VERIFY each one, many are reference errors!

5. **Delivery gate**: Files with ANY `recheck` errors CANNOT be delivered to users.

**Forbidden Patterns** ❌:

```
1. Create Sheet 1 → Create Sheet 2 → Create Sheet 3 → Run Recheck once at end
   ❌ WRONG: Errors accumulate, debugging becomes exponentially harder
   ✅ CORRECT: Check after EACH sheet, fix before moving to next

2. Skip planning for any sheet
   ❌ WRONG: Causes 80%+ of reference errors
   ✅ CORRECT: Plan each sheet's structure before creating it

3. Recheck shows errors → Ignore and deliver anyway
   ❌ ABSOLUTELY FORBIDDEN - errors must be fixed, not ignored!

4. Recheck shows errors → Proceed to create next sheet anyway
   ❌ WRONG: Errors in Sheet 1 will cascade to Sheet 2, 3...
   ✅ CORRECT: Fix ALL errors in current sheet before creating next sheet
```
</Analyze loop>

<VLOOKUP Usage Rules>
**When to Use**: User requests lookup/match/search; Multiple tables share keys (ProductID, EmployeeID); Master-detail relationships; Code-to-name mapping; Cross-file data with common keys; Keywords: "based on", "from another table", "match against"

**Syntax**: `=VLOOKUP(lookup_value, table_array, col_index_num, FALSE)` — lookup column MUST be leftmost in table_array
**Best Practices**: Use FALSE for exact match; Lock range with `$A$2:$D$100`; Wrap with `IFERROR(...,"N/A")`; Cross-sheet: `Sheet2!$A$2:$C$100`
**Errors**: #N/A=not found; #REF!=col_index exceeds columns. **Alt**: INDEX/MATCH when lookup column not leftmost
```python
ws['D2'] = '=IFERROR(VLOOKUP(A2,$G$2:$I$50,3,FALSE),"N/A")'
```
</VLOOKUP Usage Rules>

<PivotTable Module>

## 🚨 CRITICAL: PivotTable Creation Requires Reading pivot-table.md

**When to Trigger**: Detect ANY of these user intents:
- User explicitly requests "pivot table", "data pivot", "数据透视表"
- Task requires data summarization by categories
- Keywords: summarize, aggregate, group by, categorize, breakdown, statistics, distribution, count by, total by
- Dataset has 50+ rows with grouping needs
- Cross-tabulation or multi-dimensional analysis needed

**⚠️ MANDATORY ACTION**:
When PivotTable need is detected, you MUST:
1. **READ** `/app/.kimi/skills/kimi-xlsx/pivot-table.md` FIRST
2. Follow the execution order and workflow in that document
3. Use the `pivot` command (NOT manual code construction)

**Why This Is Required**:
- PivotTable creation uses pure OpenXML SDK (C# tool)
- The `pivot` command provides stable, tested implementation
- Manual pivot construction in openpyxl is NOT supported and forbidden
- Chart types (bar/line/pie) are automatically created with PivotTable

**Quick Reference** (Details in pivot-table.md):
```bash
# Step 1: Inspect data structure
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx inspect data.xlsx --pretty

# Step 2: Create PivotTable with chart
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx pivot \
    data.xlsx output.xlsx \
    --source "Sheet!A1:F100" \
    --rows "Category" \
    --values "Revenue:sum" \
    --location "Summary!A3" \
    --chart "bar"

# Step 3: Validate
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx validate output.xlsx
```

**⛔ FORBIDDEN**:
- Creating PivotTable manually with openpyxl code
- Skipping the `inspect` step
- Not reading pivot-table.md before creating PivotTable
- **🚨 NEVER modify pivot output file with openpyxl** - openpyxl will corrupt pivotCache paths!

**⚠️ CRITICAL: Workflow Order for PivotTable**
If you need to add extra sheets (Cover, Summary, etc.) to a file that will have PivotTable:
1. **FIRST**: Create ALL sheets with openpyxl (data sheets, cover sheet, styling, etc.)
2. **THEN**: Run `pivot` command as the **FINAL STEP**
3. **NEVER**: Open the pivot output file with openpyxl again - this corrupts the file!

```
✅ CORRECT ORDER:
   openpyxl creates base.xlsx (with Cover, Data sheets)
   → pivot command: base.xlsx → final.xlsx (adds PivotTable)
   → validate final.xlsx
   → DELIVER final.xlsx (do NOT modify again)

❌ WRONG ORDER (WILL CORRUPT FILE):
   pivot command creates pivot.xlsx
   → openpyxl opens pivot.xlsx to add Cover sheet  ← CORRUPTS FILE!
   → File cannot be opened in MS Excel
```

</PivotTable Module>

<Baseline error>
**Forbidden Formula Errors**:
1. Formula errors: #VALUE!, #DIV/0!, #REF!, #NAME?, #NULL!, #NUM!, #N/A - NEVER include
2. Off-by-one references (wrong cell/row/column)
3. Text starting with `=` interpreted as formula
4. Static values instead of formulas (use formulas for calculations)
5. Placeholder text: "TBD", "Pending", "Manual calculation required" - FORBIDDEN
6. Missing units in headers; Inconsistent units in calculations
7. Currency without format symbols (¥/$)
8. Result of 0 must be verified - often indicates reference error

**🚨 FORBIDDEN FUNCTIONS (Incompatible with older Excel versions)**:

The following functions are **NOT supported** in Excel 2019 and earlier. Files using these functions will **FAIL to open** in older Excel versions. Use traditional alternatives instead.

| ❌ Forbidden Function | ✅ Alternative |
|----------------------|----------------|
| `FILTER()` | Use AutoFilter, or SUMIF/COUNTIF/INDEX-MATCH |
| `UNIQUE()` | Use Remove Duplicates feature, or helper column with COUNTIF |
| `SORT()`, `SORTBY()` | Use Excel's Sort feature (Data → Sort) |
| `XLOOKUP()` | Use `INDEX()` + `MATCH()` combination |
| `XMATCH()` | Use `MATCH()` |
| `SEQUENCE()` | Use ROW() or manual fill |
| `LET()` | Define intermediate calculations in helper cells |
| `LAMBDA()` | Use named ranges or VBA |
| `RANDARRAY()` | Use `RAND()` with fill-down |
| `ARRAYFORMULA()` | Google Sheets only - use Ctrl+Shift+Enter array formulas |
| `QUERY()` | Google Sheets only - use SUMIF/COUNTIF/PivotTable |
| `IMPORTRANGE()` | Google Sheets only - copy data manually |

**Why these are forbidden**:
- These are Excel 365/2021+ dynamic array functions or Google Sheets functions
- Older Excel versions (2019, 2016, etc.) cannot parse these formulas
- The file will crash or show errors when opened in older Excel
- The `validate` command will detect and reject files using these functions

**Example - Converting FILTER to INDEX-MATCH**:
```
❌ WRONG: =FILTER(A2:C100, B2:B100="Active")
✅ CORRECT: Use AutoFilter on the data range, or create a PivotTable
```

**⚠️ Off-By-One Prevention**: Before saving, verify each formula references correct cells. Run `reference-check` tool. Common errors: referencing headers, wrong row/column offset. If result is 0 or unexpected → check references first.

**💰 Financial Values**: Store in smallest unit (15000000 not 1.5M). Use Excel format for display: `"¥#,##0"`. Never use scaled units requiring conversion in formulas.

</Baseline error>

</Analyze rule>

<Style Rules>

Use python-openpyxl package to design the style of excel. Apply styling directly in openpyxl code.

**🎨 Overall Visual Design Principles**
- **⚠️ MANDATORY: Hide Gridlines** - ALL sheets MUST have gridlines hidden (see code below)
- Start at B2 (top-left padding), not A1
- **Title Row Height**: Since content starts at B2, row 2 is typically the title row with larger font. Always increase row 2 height to prevent text clipping: `ws.row_dimensions[2].height = 30` (adjust based on font size)
- **Professionalism First**: Adopt business-style color schemes, avoid over-decoration that impairs data readability
- **Consistency**: Use uniform formatting, fonts, and color schemes for similar data types
- **Clear Hierarchy**: Establish information hierarchy through font size, weight, and color intensity
- **Appropriate White Space**: Use reasonable margins and row heights to avoid content crowding
- Please arrange the appropriate width and height dimensions for each cell, and do not have a cell that is not wide enough and too high, resulting in a display scale imbalance

---

**⚠️ How to Hide Gridlines (openpyxl)**

```python
from openpyxl import Workbook

wb = Workbook()
ws = wb.active

# Hide gridlines
ws.sheet_view.showGridLines = False

# ... add your data and styling ...
wb.save('output.xlsx')
```

---

**📐 Merged Cells Guide**

Use `ws.merge_cells()` for titles, headers spanning columns, or grouped labels. Apply style to **top-left cell only**.

```python
# Merge and style
ws.merge_cells('B2:F2')
ws['B2'] = "Report Title"
ws['B2'].font = Font(size=18, bold=True)
ws['B2'].alignment = Alignment(horizontal='center', vertical='center')
```

**Rules**:
- ✅ Use for: titles, section headers, category labels spanning columns
- ❌ Avoid in: data areas, formula ranges, PivotTable source data
- Always set `alignment` on merged cells for proper text positioning

---

**🎨 Style Selection Guide**
- **Minimalist Monochrome Style**: Default for ALL non-financial tasks (Black/White/Grey + Blue accent only)
- **Professional Finance Style**: For financial/fiscal analysis (stock, GDP, salary, public finance)

---

<Minimalist_Monochrome_Style>
## 📊 Minimalist Monochrome Style (DEFAULT)

### 🎨 Core Color Principle (STRICTLY ENFORCED)

**Base Colors (ONLY these 3):**
- **White (#FFFFFF)** - Background, content areas
- **Black (#000000)** - Primary text, key headers
- **Grey (various shades)** - Structure, secondary elements, borders

**Accent Color (ONLY Blue for differentiation):**
- When you need to highlight, differentiate, or emphasize, use **Blue** with varying lightness/saturation
- NO other colors allowed (no green, red, orange, purple, etc.) except for regional financial indicators

### ⚠️ STRICTLY FORBIDDEN

- ❌ **NO** Green, Red, Orange, Purple, Yellow, Pink or any other colors
- ❌ **NO** Rainbow or multi-color schemes
- ❌ **NO** Saturated/vibrant colors except Blue accents
- ❌ **NO** Color gradients using multiple hue families

### Python Color Palette

```python
# Minimalist Monochrome Style Palette
from openpyxl.styles import PatternFill, Font, Border, Side, Alignment

# Base Colors (Black/White/Grey ONLY)
bg_white = "FFFFFF"           # Primary background
bg_light_grey = "F5F5F5"      # Secondary background
bg_row_alt = "F9F9F9"         # Alternating row fill

header_black = "000000"       # Primary headers, totals
header_dark_grey = "333333"   # Main section headers
text_dark = "000000"          # Primary text
border_grey = "D0D0D0"        # All borders

# Blue Accent (ONLY color for differentiation)
blue_primary = "0066CC"       # Key highlights
blue_secondary = "4A90D9"     # Secondary emphasis
blue_light = "E6F0FA"         # Subtle background highlight

# Hide gridlines
ws.sheet_view.showGridLines = False

# Example: Apply header style
header_fill = PatternFill(start_color=header_dark_grey, end_color=header_dark_grey, fill_type="solid")
header_font = Font(color="FFFFFF", bold=True)
for cell in ws['A1:D1'][0]:
    cell.fill = header_fill
    cell.font = header_font
```
</Minimalist_Monochrome_Style>

<Professional_Finance_Style>
## 💎 Professional Finance Style (For Financial Tasks)

Use this style when the task involves: stock, GDP, salary, revenue, profit, budget, ROI, public finance, or any fiscal analysis.

### 🚨 CRITICAL: Regional Color Convention for Financial Data

| **Region** | **Price Up** | **Price Down** |
| --- | --- | --- |
| **China (Mainland)** | **Red** | **Green** |
| **Outside China (International)** | **Green** | **Red** |

### Python Color Palette

```python
# Professional Finance Style Palette
from openpyxl.styles import PatternFill, Font, Border, Side, Alignment

bg_light = "ECF0F1"           # Main background (light gray)
text_dark = "000000"          # Primary text
accent_warm = "FFF3E0"        # Key metrics highlight (pale orange)
header_dark_blue = "1F4E79"   # Header fill
negative_red = "FF0000"       # Negative values

# Hide cell border line
ws.sheet_view.showGridLines = False

# Example: Apply Professional Finance header style
gs_header_fill = PatternFill(start_color=header_dark_blue, end_color=header_dark_blue, fill_type="solid")
gs_header_font = Font(color="FFFFFF", bold=True)
gs_highlight_fill = PatternFill(start_color=accent_warm, end_color=accent_warm, fill_type="solid")
for cell in ws['A1:D1'][0]:
    cell.fill = gs_header_fill
    cell.font = gs_header_font
```

</Professional_Finance_Style>

---

<Conditional_Formatting>

## 🎯 Conditional Formatting (PROACTIVE USE REQUIRED)

**Actively use Conditional Formatting to create professional, visually impactful Excel deliverables.**

| Data Type | Format | Code Example |
|-----------|--------|--------------|
| Numeric values | **Data Bars** | `DataBarRule(start_type='min', end_type='max', color='4A90D9', showValue=True)` |
| Distribution | **Color Scales** | `ColorScaleRule(start_type='min', start_color='FFFFFF', end_type='max', end_color='4A90D9')` |
| KPIs/Status | **Icon Sets** | `IconSetRule(icon_style='3TrafficLights1', type='percent', values=[0,33,67])` |
| Thresholds | **Highlight Cells** | `CellIsRule(operator='greaterThan', formula=['100000'], fill=green_fill)` |
| Rankings | **Top/Bottom** | `FormulaRule(formula=['RANK(A2,$A$2:$A$100)<=10'], fill=gold_fill)` |

**Icon Styles**: `3TrafficLights1` (🔴🟡🟢), `3Arrows` (↓→↑), `3Symbols` (✗−✓), `5Rating` (★)

**Colors by Style**:
- Monochrome: Data bars `4A90D9`, Scale `F5F5F5→B0B0B0→333333`
- Finance: Positive `63BE7B`, Negative `F8696B`, Neutral `FFEB84`

```python
from openpyxl.formatting.rule import DataBarRule, ColorScaleRule, IconSetRule, CellIsRule

# Data Bar
ws.conditional_formatting.add('C2:C100', DataBarRule(start_type='min', end_type='max', color='4A90D9', showValue=True))

# 3-Color Scale (Red→Yellow→Green)
ws.conditional_formatting.add('D2:D100', ColorScaleRule(start_type='min', start_color='F8696B', mid_type='percentile', mid_value=50, mid_color='FFEB84', end_type='max', end_color='63BE7B'))

# Icon Set
ws.conditional_formatting.add('E2:E100', IconSetRule(icon_style='3TrafficLights1', type='percent', values=[0, 33, 67], showValue=True))
```

**Best Practices**: Apply to 2-4 key columns per sheet; use consistent color meanings; combine Data Bars + Icons for impact.

</Conditional_Formatting>

---

**📝 Text Color Style (MUST FOLLOW)**
- **Blue font**: Fixed values/input values
- **Black font**: Cells with calculation formulas
- **Green font**: Cells referencing other sheets
- **Red font**: Cells with external reference

---

**📏 Border Styles**
- In general cases, do not add borders to cells to make the whole content appear more focused
- Do not use a table border line unless you need to use a border line to reflect the calculation results
- Sometimes, you can use 1px borders within models, thicker for section breaks


<Cover Page Design>

**Every Excel deliverable MUST include a Cover Page as the FIRST sheet.**

## Cover Page Structure

| Row | Content | Style |
|-----|---------|-------|
| 2-3 | **Report Title** | Large font (18-20pt), Bold, Centered |
| 5 | Subtitle/Description | Medium font (12pt), Gray color |
| 7-15 | **Key Metrics Summary** | Table format with highlights |
| 17-20 | **Sheet Index** | List of all sheets with descriptions |
| 22+ | Notes & Instructions | Small font, Gray |

## Required Elements

**1. Report Title** - Clear, descriptive title of the workbook

**2. Key Metrics Summary** - 3-6 most important numbers/findings:

**3. Sheet Index** - Navigation guide:
```
| Sheet Name | Description |
|------------|-------------|
| Raw Data | Original dataset (100 rows) |
| Analysis | Sales breakdown by region |
| Pivot Summary | Interactive pivot analysis |
```

**4. PivotTable Notice** (MANDATORY when workbook contains PivotTables):
```
⚠️ IMPORTANT: This workbook contains PivotTables.
   Please refresh data after opening:
   - Windows: Select PivotTable → Right-click → Refresh
   - Mac: Select PivotTable → PivotTable Analyze → Refresh
   - Or press Ctrl+Alt+F5 to refresh all
```

## Cover Page Styling

- **Background**: Clean white or light gray (#F5F5F5)
- **Title row height**: 30-40pt for prominence
- **No gridlines**: Hide gridlines on Cover sheet for clean look
- **Column width**: Merge cells A-G for title area
- **Color scheme**: Match the workbook's theme (monochrome/finance)


## Hide gridlines
Make sure the gridlines of covers still keep hiden
</Cover Page Design>

</Style Rules>

<Visual chart>

## ⚠️ CRITICAL: You MUST Create REAL Excel Charts

**Stronger Requirement (Proactive Visualization)**:
- If the user asks for charts/visuals, you MUST actively create charts instead of waiting for explicit per-table requests.
- When a workbook has multiple prepared datasets/tables, ensure **each prepared dataset has at least one corresponding chart** unless the user explicitly says otherwise.
- If any dataset is not visualized, explain why and ask for confirmation before delivery.

**Trigger Keywords** - When user mentions ANY of these, you MUST create actual embedded charts:
- "visual", "chart", "graph", "visualization", "visual table", "diagram"
- "show me a chart", "create a chart", "add charts", "with graphs"

**❌ ABSOLUTELY FORBIDDEN**:
- Creating a "CHARTS DATA" sheet with data + instructions "Go to Insert > Charts"
- Telling user to manually create charts themselves
- Marking "Add visual charts" as completed without actual charts

**✅ REQUIRED**:
- **Default**: Create embedded Excel charts inside the .xlsx file using openpyxl
- **Only if user explicitly requests**: Create standalone PNG/JPG image files separately

**Mandatory Workflow**:
```
1. Create Excel with openpyxl (data, styling)
2. Add charts using openpyxl.chart module
3. Save file
4. Run chart-verify to confirm charts exist and have data
5. If chart-verify returns exit code 1 → FIX before delivering
```

**📚 openpyxl Chart Creation Guide**

### Required Imports
```python
from openpyxl import Workbook
from openpyxl.chart import BarChart, LineChart, PieChart, Reference
from openpyxl.chart.label import DataLabelList
```

### Chart Creation Example (Bar Chart)
```python
from openpyxl import Workbook
from openpyxl.chart import BarChart, Reference

wb = Workbook()
ws = wb.active

# Sample data
data = [
    ['Category', 'Value'],
    ['A', 100],
    ['B', 200],
    ['C', 150],
]
for row in data:
    ws.append(row)

# Create chart
chart = BarChart()
chart.type = "col"  # Column chart (vertical bars)
chart.style = 10
chart.title = "Sales by Category"
chart.y_axis.title = 'Value'
chart.x_axis.title = 'Category'

# Define data range
data_ref = Reference(ws, min_col=2, min_row=1, max_row=4)
cats_ref = Reference(ws, min_col=1, min_row=2, max_row=4)

chart.add_data(data_ref, titles_from_data=True)
chart.set_categories(cats_ref)
chart.shape = 4  # Rectangular shape

# Position chart
ws.add_chart(chart, "E2")

wb.save('output.xlsx')
```

### Chart Types Quick Reference
| Chart Type | openpyxl Class | Key Config |
|------------|----------------|------------|
| Column/Bar | `BarChart()` | `type="col"` (vertical) or `type="bar"` (horizontal) |
| Line | `LineChart()` | `style=10`, optional markers |
| Pie | `PieChart()` | No axes needed |
| Area | `AreaChart()` | `grouping="standard"` |

### Line Chart Example
```python
from openpyxl.chart import LineChart, Reference

chart = LineChart()
chart.title = "Trend Analysis"
chart.style = 13
chart.y_axis.title = 'Value'
chart.x_axis.title = 'Month'

data = Reference(ws, min_col=2, min_row=1, max_row=13, max_col=3)
chart.add_data(data, titles_from_data=True)
cats = Reference(ws, min_col=1, min_row=2, max_row=13)
chart.set_categories(cats)

ws.add_chart(chart, "E2")
```

### Pie Chart Example
```python
from openpyxl.chart import PieChart, Reference

pie = PieChart()
pie.title = "Market Share"

data = Reference(ws, min_col=2, min_row=1, max_row=5)
labels = Reference(ws, min_col=1, min_row=2, max_row=5)

pie.add_data(data, titles_from_data=True)
pie.set_categories(labels)

ws.add_chart(pie, "E2")
```

**After Creating Charts - MANDATORY**:
```bash
/app/.kimi/skills/kimi-xlsx/scripts/KimiXlsx chart-verify output.xlsx
```
Exit code 1 = Charts broken → MUST FIX. No excuses - if chart-verify fails, the chart IS broken regardless of data embedding method.

**Chart Type Selection**:
| Data Type | Chart | Use Case |
|-----------|-------|----------|
| Trend | Line | Time series |
| Compare | Column/Bar | Category comparison |
| Composition | Pie/Doughnut | Percentages (≤6 items) |
| Distribution | Histogram | Data spread |
| Correlation | Scatter | Relationships |

**Chart Color Scheme**:
- Monochrome: `333333`, `666666`, `0066CC`, `4A90D9`
- Finance: `1F4E79`, `2E75B6`, `5B9BD5`, `9DC3E6`

</Visual chart>

<Attention items>

## 🚨 Excel Creation Workflow (MUST FOLLOW)

```
Phase 1: DESIGN
    → Plan all sheets structure, formulas, cross-references before coding

Phase 2: CREATE & VALIDATE (Per-Sheet Loop)
    For each sheet:
        1. Create sheet (data, formulas, styling, charts if needed)
        2. Save workbook
        3. Run: recheck output.xlsx
        4. Run: reference-check output.xlsx
        5. Run: chart-verify output.xlsx (if sheet contains charts)
        6. If errors found → Fix and repeat step 2-5
        7. Only proceed to next sheet when current sheet has 0 errors

Phase 3: FINAL VALIDATION
    → Run: validate output.xlsx
    → If exit code = 0: Safe to deliver
    → If exit code ≠ 0: Regenerate the file with corrected code

Phase 4: DELIVER
    → Only deliver files that passed ALL validations
```

**⛔ FORBIDDEN Patterns**:
- Creating all sheets first, then running validation once at the end
- Ignoring recheck/reference-check errors and proceeding to next sheet
- Delivering files that failed validation

---

## Other Requirements

- Make sure that the final delivery contains at least one .xlsx file.
- Make sure that there is content in each table, and there should be no situation where there is only the header and no content, please recheck
- Check each cell that is calculated as null by the formula, check if the cell it references has a value
- Please arrange the height and width ratio of the table reasonably, so that there is no display disorder
- All calculations are done using real data unless the user requests the use of simulated data.
- For cells that contain numbers, mark the units at the header of the table, not after the numbers in the table
- Make sure you design Excel using the required style template. For financial tasks, use Professional Finance style templates

- 🔍 **VLOOKUP**: For cross-table matching tasks, refer to `<VLOOKUP Usage Rules>`. Multi-file scenarios: merge all files into one workbook first, then apply VLOOKUP formulas. ❌ FORBIDDEN: Using code merge() instead of VLOOKUP formulas.

- 🚨 **PivotTable**: See `<PivotTable Module>` below. MUST read `pivot-table.md` first. ⛔ FORBIDDEN: Manually constructing pivot tables in code.

- 📊 **Charts**: When user requests "visual"/"chart"/"graph", you MUST create real Excel charts using openpyxl. After creating, run `chart-verify` tool. ⛔ FORBIDDEN: Creating "chart data" sheets and telling user to insert charts manually.

- 🔗 **External Data Sources**: When using `datasource`, `web_search`, or any external data fetching tool, you MUST include source citations in the final Excel. Add `Source Name` and `Source URL` columns, or create a dedicated "Sources" sheet. ⛔ FORBIDDEN: Delivering Excel with fetched data but missing source references.

</Attention items>