arcade-eval

Evaluation workspace for Arcade.dev as a self-hosted, governed MCP gateway for ServiceTitan — measured against the internal MCP Gateway Benchmark Criteria (10 weighted categories, hard gates). Multiple lanes (one per category) run in parallel; this repo is the shared, tool-agnostic source of truth.

The question: can Arcade let AI agents act as the calling user (no shared credentials, auditable, per-user tool scoping) with operational characteristics we can run in production?

Start here (any tool — Claude Code, Cursor, a human)

1. git pull
2. Read STATUS.md → LIVE-POC.md → GROUND-RULES.md (in that order).
3. Run the live-state check (see GROUND-RULES) before trusting the live instance.
4. Go to your categories/catN-*/ and work only inside it.

Per-tool entry pointers (all say the same thing, no duplicated content):

• Claude Code: the in-repo skill arcade-gateway-eval (auto-discovered here).
• Cursor: .cursor/rules/arcade-eval.mdc (auto-attaches) + .cursor/mcp.json.example.
• Any agent tool: AGENTS.md.

The request chain (what we're testing)

MCP client → Gateway (curated tool list) → Engine (auth/vault/policy/audit) → Server → External API

Live endpoints: gateway https://api.arcade.st.dev/mcp/{slug}, dashboard https://dashboard.arcade.st.dev. See LIVE-POC.md for the full deployment snapshot.

How lanes work (parallel-session safety)

• Each category is a lane owning categories/catN-*/ + its own STATUS.md section.
• Shared files (config/targets.yaml, lib/, top-level docs) are append-mostly; git pull --rebase before every push. See the ownership table in GROUND-RULES.md.
• The harness lib/ is plain Python (uv) — tool-agnostic.

Starting a new category lane

1. git clone … && cd arcade-eval; cp config/.env.example .env, fill in creds.
2. Invoke the bootstrap skill / read the Start-here docs above; run the live-state check.
3. Open your categories/catN-*/ — criteria-section-N.md is already pre-seeded with your verbatim criteria/gates/anchors. Copy categories/_TEMPLATE/'s NOTES.md + tests/ in.
4. Claim your section in STATUS.md. Work only inside your subtree; git pull --rebase before push.

Categories → reviewer clusters (from the criteria doc)

Cluster	Question	Categories	Reviewers
Platform	Does it work and stay up?	1 Functional · 7 Performance · 8 Deployment/Ops	Nawaz / SRE
Security	Can we control and see it?	2 Delegated authz · 3 Access policy · 5 Auditability · 6 Security	Dane / Chandu
Adopt/Operate	Can we adopt and operate it?	4 Connectors · 9 Developer experience · 10 Product fit	Paul / Chandu

ztaylor owns categories 1, 5, 9 (one per cluster).

Weights

1=8 · 2=20 · 3=15 · 4=10 · 5=12 · 6=10 · 7=8 · 8=7 · 9=5 · 10=5 (total 100)

Layout

config/      targets.yaml · .env.example
lib/         mcp_client.py · mcp_server/ (shared reference server) · helpers
categories/  _TEMPLATE/ + cat1..cat10 (each: criteria-section-N.md [+ tests/ NOTES.md when active])
results/     git-ignored run artifacts