packc validate

Validate a compiled pack file for errors and warnings.

Synopsis

packc validate <pack-file>

Description

The validate command checks a compiled .pack.json file for:

Schema compliance
Required fields
Valid data types
Tool references
Template syntax
Parameter values

Use this command to ensure packs are correctly formatted before deployment.

Arguments

<pack-file> (required)

Path to the pack file to validate
Must be a .pack.json file

Examples

Basic Validation

packc validate packs/app.pack.json

Output (success):

Validating pack: packs/app.pack.json
✓ Pack is valid

Output (with warnings):

Validating pack: packs/app.pack.json
⚠ Pack has 2 warnings:
  - Template variable 'user_name' not defined in prompt 'support'
  - Tool 'search_api' referenced but not defined

Validate in CI/CD

# Validate and fail on warnings
packc validate packs/app.pack.json || exit 1

Validate Multiple Packs

for pack in packs/*.pack.json; do
  echo "Validating $pack"
  packc validate "$pack"
done

Validation Checks

Schema Validation

Checks pack structure:

Pack ID present
Version format valid
Prompts section exists
Required prompt fields present

Prompt Validation

For each prompt:

System prompt not empty
Parameters within valid ranges
Template syntax correct
Variables defined

Tool Validation

Referenced tools exist
Tool parameters valid
Tool names unique

Parameter Validation

temperature: 0.0-2.0
max_tokens: positive integer
top_p: 0.0-1.0
top_k: positive integer

Exit Codes

0 - Pack is valid (no warnings)
1 - Pack has warnings or errors

Common Warnings

Missing Template Variables

⚠ Template variable 'customer_name' not defined

Cause: Template uses “ but variable not in pack

Solution: Add variable to pack or remove from template

Tool Not Defined

⚠ Tool 'search_api' referenced but not defined

Cause: Prompt lists tool that doesn’t exist in pack

Solution: Add tool to pack or remove from prompt’s available_tools

Parameter Out of Range

⚠ Temperature 2.5 exceeds maximum 2.0

Cause: Invalid model parameter value

Solution: Correct parameter in source YAML

Empty System Prompt

⚠ System prompt is empty for prompt 'assistant'

Cause: Prompt has no system instructions

Solution: Add system prompt to YAML

Integration with Build Process

Pre-commit Hook

#!/bin/bash
# .git/hooks/pre-commit

echo "Validating packs..."
for pack in packs/*.pack.json; do
  if ! packc validate "$pack"; then
    echo "❌ Pack validation failed"
    exit 1
  fi
done

echo "✓ All packs valid"

CI Pipeline

# .github/workflows/validate-packs.yml
name: Validate Packs

on: [push, pull_request]

jobs:
  validate:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      
      - name: Install packc
        run: go install github.com/AltairaLabs/PromptKit/tools/packc@latest
      
      - name: Validate all packs
        run: |
          EXIT_CODE=0
          for pack in packs/*.pack.json; do
            if ! packc validate "$pack"; then
              EXIT_CODE=1
            fi
          done
          exit $EXIT_CODE

Best Practices

1. Validate After Every Compilation

packc compile --config arena.yaml --output app.pack.json --id my-app
packc validate app.pack.json

2. Fail CI on Warnings

Treat warnings as errors in production:

if ! packc validate packs/prod.pack.json; then
  echo "Production pack validation failed"
  exit 1
fi

3. Validate Before Deployment

# In deployment script
echo "Validating packs before deployment..."
for pack in packs/*.pack.json; do
  packc validate "$pack" || {
    echo "Deployment aborted: invalid pack"
    exit 1
  }
done

4. Keep Validation Logs

packc validate packs/app.pack.json > validation-report.txt 2>&1