build-test

A small build-and-functionality check for a software project. It creates a minimal test project, builds it, and runs a basic test.

In plain words
What is it for?
Use it to verify that a project can build and that its core function works, fixing and repeating the checks when they fail.
Why use it?
It catches build failures and basic runtime problems before more work depends on the project.

Cursor rule for Cursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/alkoleft/platform-context-exporter/build-test
Clone the repo
git clone --depth 1 https://github.com/alkoleft/platform-context-exporter

Made for: Cursor.

Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 877 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00877
Opus 5 $0.00000 $0.00439
Sonnet 5 $0.00000 $0.00175
Haiku 4.5 $0.00000 $0.00088

Measured 3d ago against content hash 19bf082938ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

build-test scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to build-test — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.cursor/rules/isolation_rules/visual-maps/van_mode_split/van-qa-checks/build-test.mdc · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

VAN QA: MINIMAL BUILD TEST

TL;DR: This component performs a minimal build test to ensure core build functionality works properly.

4️⃣ MINIMAL BUILD TEST PROCESS

graph TD
    Start["Minimal Build Test"] --> CreateTest["Create Minimal<br>Test Project"]
    CreateTest --> BuildTest["Attempt<br>Build"]
    BuildTest --> BuildStatus{"Build<br>Successful?"}
    
    BuildStatus -->|"Yes"| RunTest["Run Basic<br>Functionality Test"]
    BuildStatus -->|"No"| FixBuild["Fix Build<br>Issues"]
    FixBuild --> RetryBuild["Retry Build"]
    RetryBuild --> BuildStatus
    
    RunTest --> TestStatus{"Test<br>Passed?"}
    TestStatus -->|"Yes"| TestSuccess["Minimal Build Test<br>✅ PASS"]
    TestStatus -->|"No"| FixTest["Fix Test<br>Issues"]
    FixTest --> RetryTest["Retry Test"]
    RetryTest --> TestStatus
    
    style Start fill:#4da6ff,stroke:#0066cc,color:white
    style TestSuccess fill:#10b981,stroke:#059669,color:white
    style BuildStatus fill:#f6546a,stroke:#c30052,color:white
    style TestStatus fill:#f6546a,stroke:#c30052,color:white

Minimal Build Test Implementation:

# Example: Perform minimal build test for a React project
function Perform-MinimalBuildTest {
    $buildSuccess = $false
    $testSuccess = $false
    
    # Create minimal test project
    $testDir = ".__build_test"
    if (Test-Path $testDir) {
        Remove-Item -Path $testDir -Recurse -Force
    }
    
    try {
        # Create minimal test directory
        New-Item -Path $testDir -ItemType Directory | Out-Null
        Push-Location $testDir
        
        # Initialize minimal package.json
        @"
{
  "name": "build-test",
  "version": "1.0.0",
  "description": "Minimal build test",
  "main": "index.js",
  "scripts": {
    "build": "echo Build test successful"
  }
}
"@ | Set-Content -Path "package.json"
        
        # Attempt build
        npm run build | Out-Null
        $buildSuccess = $true
        
        # Create minimal test file
        @"
console.log('Test successful');
"@ | Set-Content -Path "index.js"
        
        # Run basic test
        node index.js | Out-Null
        $testSuccess = $true
        
    } catch {
        Write-Output "❌ Build test failed: $($_.Exception.Message)"
    } finally {
        Pop-Location
        if (Test-Path $testDir) {
            Remove-Item -Path $testDir -Recurse -Force
        }
    }
    
    # Display results
    if ($buildSuccess -and $testSuccess) {
        Write-Output "✅ Minimal build test passed successfully"
        return $true
    } else {
        if (-not $buildSuccess) {
            Write-Output "❌ Build process failed"
        }
        if (-not $testSuccess) {
            Write-Output "❌ Basic functionality test failed"
        }
        return $false
    }
}

Read the full file on GitHub · 117 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 117 lines · 0 tokens per session scan A 19bf082938ab

Subscribe to this mod's changes

build-test is a cursor rule published in the GitHub repository alkoleft/platform-context-exporter (48 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 877 tokens. A static security scan graded it A with 0 findings. It is 100% identical to build-test, differing in 0 lines, and is treated as a copy.