# Send Auto Estimate Generator to your agent
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
## Fast path
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
## Suggested prompts
### New install

```text
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
```
### Upgrade existing

```text
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
```
## Machine-readable fields
```json
{
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  "item": {
    "slug": "auto-estimate-generator",
    "name": "Auto Estimate Generator",
    "source": "tencent",
    "type": "skill",
    "category": "开发工具",
    "sourceUrl": "https://clawhub.ai/datadrivenconstruction/auto-estimate-generator",
    "canonicalUrl": "https://clawhub.ai/datadrivenconstruction/auto-estimate-generator",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/auto-estimate-generator",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=auto-estimate-generator",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "claw.json",
      "instructions.md",
      "SKILL.md"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "slug": "auto-estimate-generator",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-04-30T06:16:48.147Z",
      "expiresAt": "2026-05-07T06:16:48.147Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=auto-estimate-generator",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=auto-estimate-generator",
        "contentDisposition": "attachment; filename=\"auto-estimate-generator-2.1.0.zip\"",
        "redirectLocation": null,
        "bodySnippet": null,
        "slug": "auto-estimate-generator"
      },
      "scope": "item",
      "summary": "Item download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this item.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/auto-estimate-generator"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    }
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/auto-estimate-generator",
    "downloadUrl": "https://openagent3.xyz/downloads/auto-estimate-generator",
    "agentUrl": "https://openagent3.xyz/skills/auto-estimate-generator/agent",
    "manifestUrl": "https://openagent3.xyz/skills/auto-estimate-generator/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/auto-estimate-generator/agent.md"
  }
}
```
## Documentation

### Problem Statement

Manual estimate creation challenges:

Time-consuming quantity mapping
Inconsistent pricing rules
Errors in calculations
Difficulty updating estimates

### Solution

Automated estimate generation from BIM/QTO data using configurable pricing rules and assembly mappings.

### Technical Implementation

import pandas as pd
from typing import Dict, Any, List, Optional, Callable
from dataclasses import dataclass, field
from enum import Enum


class ElementType(Enum):
    WALL = "wall"
    FLOOR = "floor"
    CEILING = "ceiling"
    DOOR = "door"
    WINDOW = "window"
    COLUMN = "column"
    BEAM = "beam"
    FOUNDATION = "foundation"
    ROOF = "roof"
    STAIR = "stair"
    MEP = "mep"


@dataclass
class QTOItem:
    element_id: str
    element_type: ElementType
    name: str
    quantity: float
    unit: str
    properties: Dict[str, Any] = field(default_factory=dict)


@dataclass
class PricingRule:
    rule_id: str
    name: str
    element_type: ElementType
    conditions: Dict[str, Any] = field(default_factory=dict)
    unit_cost: float = 0
    assembly_code: str = ""
    cost_breakdown: Dict[str, float] = field(default_factory=dict)


@dataclass
class EstimateItem:
    qto_element_id: str
    description: str
    quantity: float
    unit: str
    unit_cost: float
    total_cost: float
    rule_applied: str
    wbs_code: str = ""


class AutoEstimateGenerator:
    """Generate estimates from QTO data automatically."""

    def __init__(self, project_name: str):
        self.project_name = project_name
        self.pricing_rules: List[PricingRule] = []
        self.qto_items: List[QTOItem] = []
        self.estimate_items: List[EstimateItem] = []
        self.unmapped_items: List[QTOItem] = []

    def add_pricing_rule(self, rule: PricingRule):
        """Add pricing rule."""
        self.pricing_rules.append(rule)

    def load_pricing_rules_from_df(self, df: pd.DataFrame):
        """Load pricing rules from DataFrame."""

        for _, row in df.iterrows():
            conditions = {}
            if 'material' in row:
                conditions['material'] = row['material']
            if 'thickness_min' in row:
                conditions['thickness_min'] = row['thickness_min']
            if 'thickness_max' in row:
                conditions['thickness_max'] = row['thickness_max']

            rule = PricingRule(
                rule_id=row['rule_id'],
                name=row['name'],
                element_type=ElementType(row['element_type'].lower()),
                conditions=conditions,
                unit_cost=float(row['unit_cost']),
                assembly_code=row.get('assembly_code', ''),
                cost_breakdown={
                    'labor': float(row.get('labor_pct', 0.4)),
                    'material': float(row.get('material_pct', 0.5)),
                    'equipment': float(row.get('equipment_pct', 0.1))
                }
            )
            self.add_pricing_rule(rule)

    def load_qto_from_df(self, df: pd.DataFrame):
        """Load QTO items from DataFrame."""

        for _, row in df.iterrows():
            properties = {}
            for col in df.columns:
                if col not in ['element_id', 'element_type', 'name', 'quantity', 'unit']:
                    properties[col] = row[col]

            qto = QTOItem(
                element_id=str(row['element_id']),
                element_type=ElementType(row['element_type'].lower()),
                name=row['name'],
                quantity=float(row['quantity']),
                unit=row['unit'],
                properties=properties
            )
            self.qto_items.append(qto)

    def find_matching_rule(self, qto_item: QTOItem) -> Optional[PricingRule]:
        """Find pricing rule that matches QTO item."""

        matching_rules = []

        for rule in self.pricing_rules:
            if rule.element_type != qto_item.element_type:
                continue

            # Check conditions
            match = True
            for key, value in rule.conditions.items():
                if key.endswith('_min'):
                    prop_name = key[:-4]
                    if prop_name in qto_item.properties:
                        if qto_item.properties[prop_name] < value:
                            match = False
                elif key.endswith('_max'):
                    prop_name = key[:-4]
                    if prop_name in qto_item.properties:
                        if qto_item.properties[prop_name] > value:
                            match = False
                else:
                    if key in qto_item.properties:
                        if qto_item.properties[key] != value:
                            match = False

            if match:
                matching_rules.append(rule)

        # Return most specific rule (most conditions)
        if matching_rules:
            return max(matching_rules, key=lambda r: len(r.conditions))
        return None

    def generate_estimate(self) -> Dict[str, Any]:
        """Generate estimate from QTO items."""

        self.estimate_items = []
        self.unmapped_items = []
        total_cost = 0

        for qto in self.qto_items:
            rule = self.find_matching_rule(qto)

            if rule:
                item_cost = qto.quantity * rule.unit_cost

                self.estimate_items.append(EstimateItem(
                    qto_element_id=qto.element_id,
                    description=f"{qto.name} ({rule.name})",
                    quantity=qto.quantity,
                    unit=qto.unit,
                    unit_cost=rule.unit_cost,
                    total_cost=round(item_cost, 2),
                    rule_applied=rule.rule_id,
                    wbs_code=rule.assembly_code
                ))
                total_cost += item_cost
            else:
                self.unmapped_items.append(qto)

        return {
            'project': self.project_name,
            'total_qto_items': len(self.qto_items),
            'mapped_items': len(self.estimate_items),
            'unmapped_items': len(self.unmapped_items),
            'mapping_rate': round(len(self.estimate_items) / len(self.qto_items) * 100, 1) if self.qto_items else 0,
            'total_cost': round(total_cost, 2),
            'items': self.estimate_items
        }

    def get_cost_by_element_type(self) -> Dict[str, float]:
        """Get cost breakdown by element type."""

        by_type = {}
        for qto in self.qto_items:
            for est_item in self.estimate_items:
                if est_item.qto_element_id == qto.element_id:
                    type_name = qto.element_type.value
                    by_type[type_name] = by_type.get(type_name, 0) + est_item.total_cost

        return {k: round(v, 2) for k, v in by_type.items()}

    def get_unmapped_summary(self) -> pd.DataFrame:
        """Get summary of unmapped items."""

        if not self.unmapped_items:
            return pd.DataFrame()

        data = []
        for item in self.unmapped_items:
            data.append({
                'Element ID': item.element_id,
                'Type': item.element_type.value,
                'Name': item.name,
                'Quantity': item.quantity,
                'Unit': item.unit,
                'Properties': str(item.properties)
            })

        return pd.DataFrame(data)

    def export_to_excel(self, output_path: str) -> str:
        """Export estimate to Excel."""

        result = self.generate_estimate()

        with pd.ExcelWriter(output_path, engine='openpyxl') as writer:
            # Summary
            summary_df = pd.DataFrame([{
                'Project': self.project_name,
                'Total QTO Items': result['total_qto_items'],
                'Mapped Items': result['mapped_items'],
                'Unmapped Items': result['unmapped_items'],
                'Mapping Rate %': result['mapping_rate'],
                'Total Cost': result['total_cost']
            }])
            summary_df.to_excel(writer, sheet_name='Summary', index=False)

            # Estimate items
            items_df = pd.DataFrame([{
                'Element ID': item.qto_element_id,
                'Description': item.description,
                'Quantity': item.quantity,
                'Unit': item.unit,
                'Unit Cost': item.unit_cost,
                'Total Cost': item.total_cost,
                'WBS': item.wbs_code,
                'Rule': item.rule_applied
            } for item in self.estimate_items])
            items_df.to_excel(writer, sheet_name='Estimate', index=False)

            # By element type
            by_type_df = pd.DataFrame([
                {'Element Type': k, 'Cost': v}
                for k, v in self.get_cost_by_element_type().items()
            ])
            by_type_df.to_excel(writer, sheet_name='By Type', index=False)

            # Unmapped items
            unmapped_df = self.get_unmapped_summary()
            if not unmapped_df.empty:
                unmapped_df.to_excel(writer, sheet_name='Unmapped', index=False)

        return output_path

    def suggest_missing_rules(self) -> List[Dict[str, Any]]:
        """Suggest pricing rules for unmapped items."""

        suggestions = []
        seen_types = set()

        for item in self.unmapped_items:
            key = (item.element_type.value, str(item.properties))
            if key not in seen_types:
                seen_types.add(key)
                suggestions.append({
                    'element_type': item.element_type.value,
                    'sample_name': item.name,
                    'properties': item.properties,
                    'count': sum(1 for i in self.unmapped_items
                                if i.element_type == item.element_type
                                and str(i.properties) == str(item.properties))
                })

        return sorted(suggestions, key=lambda x: x['count'], reverse=True)

### Quick Start

# Initialize generator
generator = AutoEstimateGenerator("Office Building A")

# Add pricing rules
generator.add_pricing_rule(PricingRule(
    rule_id="W-001",
    name="Interior Wall - Drywall",
    element_type=ElementType.WALL,
    conditions={"material": "Drywall"},
    unit_cost=45.00,
    assembly_code="09.29.10"
))

generator.add_pricing_rule(PricingRule(
    rule_id="W-002",
    name="Exterior Wall - Masonry",
    element_type=ElementType.WALL,
    conditions={"material": "Masonry"},
    unit_cost=125.00,
    assembly_code="04.21.13"
))

# Load QTO data
generator.qto_items = [
    QTOItem("W-001", ElementType.WALL, "Interior Wall L1", 500, "SF", {"material": "Drywall"}),
    QTOItem("W-002", ElementType.WALL, "Exterior Wall", 1200, "SF", {"material": "Masonry"})
]

# Generate estimate
result = generator.generate_estimate()
print(f"Total Cost: ${result['total_cost']:,.2f}")
print(f"Mapping Rate: {result['mapping_rate']}%")

### 1. Cost by Element Type

by_type = generator.get_cost_by_element_type()
for element_type, cost in by_type.items():
    print(f"{element_type}: ${cost:,.2f}")

### 2. Unmapped Items

unmapped = generator.get_unmapped_summary()
print(unmapped)

### 3. Rule Suggestions

suggestions = generator.suggest_missing_rules()
for s in suggestions:
    print(f"Need rule for: {s['element_type']} ({s['count']} items)")

### Resources

DDC Book: Chapter 3.2 - QTO and Automated Estimates
Website: https://datadrivenconstruction.io
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: datadrivenconstruction
- Version: 2.1.0
## Source health
- Status: healthy
- Item download looks usable.
- Yavira can redirect you to the upstream package for this item.
- Health scope: item
- Reason: direct_download_ok
- Checked at: 2026-04-30T06:16:48.147Z
- Expires at: 2026-05-07T06:16:48.147Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/auto-estimate-generator)
- [Send to Agent page](https://openagent3.xyz/skills/auto-estimate-generator/agent)
- [JSON manifest](https://openagent3.xyz/skills/auto-estimate-generator/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/auto-estimate-generator/agent.md)
- [Download page](https://openagent3.xyz/downloads/auto-estimate-generator)