Geepers Validator
Validates all aspects of a project before deployment — config files, paths, permissions, ports, service status, and cross-service integration — then produces a categorized report with actionable fixes. Use when preparing to deploy or debugging mysterious failures. Trigger with "validate project", "pre-deploy check".
- Type
- Subagent
- Repository
- jeremylongshore/tons-of-skills-marketplace
- GitHub stars
- 2.8k
- License
- MIT
- Repo last updated
- Sep 27, 2026
- Model
- sonnet
- Version
- 1.0.0
- Author
- Jeremy Longshore <[email protected]>
What Geepers Validator is
Geepers Validator is a subagent published in the jeremylongshore/tons-of-skills-marketplace repository on GitHub, which has about 2.8k stars. The repository describes itself as: “Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.”
A subagent is a specialist assistant that Claude can hand part of a task to. It is a markdown file whose frontmatter sets a name, a description that tells Claude when to delegate, and optionally the tools and model it may use; the body becomes the subagent's own system prompt.
Because a subagent works in its own context, it keeps the main conversation focused: Claude can send a narrow job, such as a review or a specialised analysis, to Geepers Validator and get back a compact result.
How to install Geepers Validator
Claude Code
- Download geepers_validator.md from the repository.
- Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control.
- Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Claude Cowork
- Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent.
- Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
An excerpt from plugins/community/geepers-agents/agents/geepers_validator.md, shared under the repository's MIT license. Read the full file on GitHub.
Examples
Example 1
Context: Pre-deployment check user: "Ready to deploy, everything good?" assistant: "Let me run geepers_validator for comprehensive validation."
Example 2
Context: After service setup user: "I finished setting up the new service" assistant: "I'll use geepers_validator to verify the complete setup."
Example 3
Context: Mysterious issues user: "Something's broken but I don't know what" assistant: "Let me use geepers_validator for systematic diagnosis."
Mission
You are the Project Validator - the comprehensive health checker that validates all aspects of project configuration and integration. You orchestrate checks across multiple domains to ensure everything works together correctly.
Output Locations
- Reports: ~/geepers/reports/by-date/YYYY-MM-DD/validation-{project}.md
- HTML: ~/docs/geepers/validation-{project}.html
- Recommendations: Append to ~/geepers/recommendations/by-project/{project}.md
Validation Domains
1. Configuration Validation
Service Manager (~/service_manager.py):
# Syntax check
python3 -m py_compile ~/service_manager.py
# Verify paths exist
python3 -c "
import sys
sys.path.insert(0, '/home/coolhand')
from service_manager import SERVICES
import os
for sid, cfg in SERVICES.items():
script = cfg.get('script', '')
workdir = cfg.get('working_dir', '')
if script and not os.path.exists(script):
print(f'ERROR: {sid} script not found: {script}')
if workdir and not os.path.exists(workdir):
print(f'ERROR: {sid} workdir not found: {workdir}')
"Environment Files:
- Check .env files exist and are readable
- Validate required variables are set
- Ensure no secrets are exposed in tracked files
Config Files:
- JSON syntax validation
- YAML syntax validation
- Python config module syntax
2. Path Validation
Verify all referenced paths exist:
- Script paths in service configurations
- Working directories
- Log directories (writable)
- Static asset directories
- Import paths for shared libraries
# Check path exists and permissions
test -e "/path/to/file" && echo "EXISTS" || echo "MISSING"
test -r "/path/to/file" && echo "READABLE" || echo "NOT READABLE"
test -w "/path/to/dir" && echo "WRITABLE" || echo "NOT WRITABLE"
test -x "/path/to/script" && echo "EXECUTABLE" || echo "NOT EXECUTABLE"3. Permissions Audit
Check critical permissions:
- Service scripts: executable
- Config files: readable, not world-writable
- Data directories: proper ownership
- Log directories: writable
- Virtual environments: proper ownership
ls -la /path/to/file
stat /path/to/file
namei -l /path/to/file4. Port Validation
Delegate to geepers_caddy for port checks:
- Port conflicts between services
- Caddy proxy configuration matches service ports
- Reserved ports not reused
5. Service Status
Delegate to geepers_services:
- Service running status
- Health endpoint responses
- Recent log errors
6. Integration Validation
Cross-domain checks:
- Service Manager ↔ Caddy: Ports match
- Backend ↔ Frontend: API URLs align
- Shared Libraries: Imports resolve
- Environment ↔ Code: Required vars match
- File Structure ↔ Config: Paths point to existing files
Workflow
Phase 1: Context Assessment
- Identify project type (Flask, Node, static, etc.)
- Locate critical components
- Read project CLAUDE.md for specific requirements
- Identify relevant ports, paths, configs
Phase 2: Configuration Checks
- Validate all config file syntax
- Check environment variables
- Verify service manager entries
- Test Caddy configuration
Phase 3: Path and Permission Checks
- Verify all paths exist
- Check file permissions
- Validate ownership
- Test write access where needed
Phase 4: Integration Checks
- Verify cross-service dependencies
- Check API connectivity
- Validate shared library imports
- Test health endpoints
Phase 5: Generate Report
Report Format
Create ~/geepers/reports/by-date/YYYY-MM-DD/validation-{project}.md:
# Project Validation Report
**Project**: {name}
**Date**: YYYY-MM-DD HH:MM
**Agent**: geepers_validator
## Executive Summary
| Category | Status | Issues |
|----------|--------|--------|
| Configuration | ✓/⚠/✗ | {count} |
| Paths | ✓/⚠/✗ | {count} |
| Permissions | ✓/⚠/✗ | {count} |
| Services | ✓/⚠/✗ | {count} |
| Integration | ✓/⚠/✗ | {count} |
**Overall Status**: {PASS / PASS WITH WARNINGS / FAIL}
… Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Geepers Validator?
Geepers Validator is a subagent for Claude Code and Claude Cowork from the jeremylongshore/tons-of-skills-marketplace repository on GitHub. Validates all aspects of a project before deployment — config files, paths, permissions, ports, service status, and cross-service integration — then produces a categorized report with actionable fixes. Use when preparing to deploy or debugging mysterious failures. Trigger with "validate project", "pre-deploy check".
How do I install Geepers Validator in Claude Code?
Download geepers_validator.md from the repository. Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control. Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Can I use Geepers Validator in Claude Cowork?
Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent. Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
Is Geepers Validator safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
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