br3eze-code Skill: project
Version: 2026.7.0
Dispatcher: manage_project
Domain: productivity
Description
CPM (Critical Path Method) and EVM (Earned Value Management) project tracking engine. Stores projects in the AgentOS database, computes forward/backward passes to find the critical path, and calculates SPI, CPI, ETC, EAC, and other earned value metrics. EVM data sources: voucher revenue as EV/PV, LLM token spend + infra cost as AC.
When to Use
Invoke when the user asks about:
- Creating or managing a project with tasks and dependencies
- Finding the critical path or schedule float
- Calculating earned value metrics (SPI, CPI, EAC, VAC…)
- Generating a CPM + EVM combined project report
- Exporting project data
Tools (9 Actions)
| Action | Description |
|---|---|
project.create |
Create project with tasks, dependencies, and BAC |
project.list |
List all projects |
project.get |
Get project by ID |
project.update |
Update project or task fields |
project.delete |
Delete a project |
project.critical_path |
Run CPM — returns ES/EF/LS/LF/float and critical path |
project.evm |
Calculate EVM metrics |
project.report |
Combined CPM + EVM report with health indicators |
project.export |
Export full project data as JSON |
CPM Algorithm
- Forward pass: ES, EF computed via recursive dependency traversal
- Backward pass: LS, LF, float
- Critical path: all tasks where
float === 0
EVM Metrics
| Metric | Formula |
|---|---|
| SPI | EV / PV |
| CPI | EV / AC |
| SV | EV − PV |
| CV | EV − AC |
| ETC | (BAC − EV) / CPI |
| EAC | AC + ETC |
| VAC | BAC − EAC |
| TCPI | (BAC − EV) / (BAC − AC) |
Example: Create Project
{
"action": "project.create",
"project": {
"name": "Network Expansion Q3",
"bac": 5000,
"tasks": [
{ "id": "t1", "title": "Site survey", "duration": 2, "dependencies": [], "plannedValue": 500 },
{ "id": "t2", "title": "Cable install", "duration": 5, "dependencies": ["t1"], "plannedValue": 2000 },
{ "id": "t3", "title": "Router config", "duration": 3, "dependencies": ["t2"], "plannedValue": 1500 },
{ "id": "t4", "title": "User onboarding", "duration": 2, "dependencies": ["t3"], "plannedValue": 1000 }
]
}
}
Example: EVM Report
{
"action": "project.report",
"id": "proj-1234567890"
}