WJTTC/🍊

The FAF Foundation Testing Standard for MCP Servers

"When brakes must work flawlessly, so must our MCP servers"

What is WJTTC?

WJTTC is the WolfeJam Technical Testing Certification. wolfejam is the dev who created the IANA-registered .faf format for AI context - the first and only MCP of its kind. He achieved this largely due to his obsession with technical details and testing.

WJTTC is the rollout of his self-certification secrets to help grade other MCP servers for free, with a view to improving MCP server quality system-wide. Now testing across Claude, Gemini, Grok, Rust, and IDE servers (Cursor, Windsurf, Cline, VS Code).

Score your Server for free. Full leaderboard going live soon - what will your server score?

The Testing Ecosystem

| Component | Tests | Speed | |-----------|-------|-------| | faf-cli (TypeScript) | 1,143 tests, 50 suites | Production CLI | | faf-wasm-sdk (Rust/WASM Mk4) | 136 tests | 0.13s total | | wjttc (Certification) | 105 tests | 52 MCP tests, 9 tiers |

Testing across 5 MCP servers (Claude, Gemini, Grok, IDE Edition, Rust) and counting.

What is Big Orange?

The 🍊 Big Orange is a badge — recognition that the Server Owner(s) have gone above and beyond the 100% pass rate.

• 100% = Pass all 49 scored tests across ALL 9 tiers (Tiers 1-8)
• 🍊 = Awarded for excellence beyond metrics (badge, not a score)
• Tier 9 = TAF Receipt Validation (informational only, doesn't affect score)

The 🍊, much like a Michelin Star for a restaurant, is awarded for excellence and well-deserved for Best-of-Class MCP servers.

Did you know? Most MCP servers on the registry score Silver or below. Only 3 servers have achieved 🍊 Big Orange certification.

Full leaderboard coming soon.

Certification Tiers

| Badge | Tier | Score | Meaning | |-------|------|-------|---------| | 🍊 | Big Orange | 100% + BADGE | The Michelin Star of MCP servers (awarded for excellence beyond metrics) | | 🏆 | Trophy | 100% | Perfect - 100% pass rate | | 🥇 | Gold | 99%+ | Exceptional | | 🥈 | Silver | 95%+ | Excellent, room for polish | | 🥉 | Bronze | 85%+ | Production ready (minimum recommended) | | 🟢 | Green | 70%+ | Solid foundation | | 🟡 | Yellow | 55%+ | Needs improvement | | 🔴 | Red | <55% | Critical issues |

Quick Start

# Test any MCP server
npx wjttc certify --mcp "npx your-mcp-server"

# Example output:
# 🏆 CERTIFICATION: TROPHY
#    Score:  100/100
#    Tests:  49/49 passed (+ 3 validation checks)
#    Badge:  🍊 Big Orange (awarded for excellence)

Current 🍊 Big Orange Holders

| Server | Score | Status | |--------|-------|--------| | claude-faf-mcp | 100% 🍊 | Trophy + Big Orange Badge | | faf-mcp | 100% 🍊 | Trophy + Big Orange Badge | | grok-faf-mcp | 100% 🍊 | Trophy + Big Orange Badge |

Test System

52 tests across 9 tiers (49 scored + 3 validation checks):

| Tier | Name | Weight | Tests | |------|------|--------|-------| | 1 | Protocol Compliance | 20% | 12 | | 2 | Capability Negotiation | 10% | 8 | | 3 | Tool Integrity | 20% | 6 | | 4 | Resource Management | 10% | 6 | | 5 | Security Validation | 15% | 3 | | 6 | Performance Benchmarks | 15% | 6 | | 7 | Integration Readiness | 10% | 5 | | 8 | FAF Documentation | 5% | 3 | | 9 | TAF Receipt Validation | Informational | 3 |

Note: Tier 9 validates .taf receipt files but doesn't affect the 0-100% score. It provides proof of testing history over time.

GitHub Action

- uses: wolfe-jam/wjttc-action@v1
  with:
    mcp-path: './dist/index.js'
    tier: bronze

Pre-Certification Best Practices

Before running WJTTC certification, consider these preparation steps:

For FAF-enabled projects (Tier 8):

# Validate project.faf structure and score
faf score

# If you have faf-cli source code, run Boris-Flow integration tests
cd /path/to/faf-cli
./tests/boris-flow.test.sh

Boris-Flow is faf-cli's 12-test validation suite that checks:

• Version detection
• Type and language detection
• Claude Code structure validation (agents, skills, commands)
• Score progression (init → auto → 100%)
• Non-TTY safety

Running Boris-Flow before WJTTC certification ensures your .faf file is valid and complete, which helps you pass Tier 8 tests.

Workflow:

1. faf init - Create project.faf
2. faf auto - Enhance to 100%
3. (Optional) Run Boris-Flow tests
4. npx wjttc certify --mcp "npx your-server" - Run certification

Links

• Full Specification
• Certification Records
• MCP Protocol
• FAF Ecosystem

FAF Family

| | | |---|---| | faf-cli | npx faf-cli init — create .faf for any project | | claude-faf-mcp | MCP server for Claude Desktop | | gemini-faf-mcp | MCP server for Gemini CLI | | grok-faf-mcp | MCP server for Grok | | faf-mcp | MCP server for Cursor, Windsurf, Cline, VS Code | | rust-faf-mcp | MCP server in Rust | | faf-skills | 17 Claude Code skills | | faf.one | Blog, downloads, docs | | IANA Registration | application/vnd.faf+yaml |

format | driven 🏎️⚡️ wolfejam.dev