- mcp.json: bare https://mcp.spaghetti.gg -> https://mcp.spaghetti.gg/api/mcp/agentic-engine/mcp (the host root does not serve MCP; Caddy proxies the whole host without a path rewrite) - SKILL.md/README: replace tools that no longer exist (analyze_crash, audit_assets, search_kb) with the shipped set (analyze_logs, tidy_assets, make_tool, topup, the five research tools); document credit costs and the approval flow - drop stale claims: GoTrue, spaghetti.gg/dashboard, tm_/prj_ id prefixes, '.spaghetti auto-created on first tool call' (unimplemented) - plugin.json: 0.1.0 -> 0.1.1
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name, description
| name | description |
|---|---|
| ue5-unreal | Unreal Engine 5 development assistant — log analysis, asset auditing, engine-docs research, and Python script generation via Spaghetti Unreal AI Workbench. Call these tools when the user is working in a UE5 project and needs expert help with log errors or crashes, asset cleanup, engine docs, or editor automation. |
UE5 Unreal AI Workbench Tools
This skill provides access to Spaghetti's Unreal AI Workbench MCP tools.
These tools run on a remote server (mcp.spaghetti.gg) and require
authentication via OAuth (your client handles this automatically on first
connect — a browser window opens for sign-in at spaghetti.gg).
Prerequisites
The user must have signed in at spaghetti.gg at least once (accounts and welcome credits are created on first sign-in).
A .spaghetti file at the UE5 project root (team_id, project_id) is
optional — without it, calls bill the user's personal wallet and everything
works except the two project-scoped research tools (search_logs_temporal,
investigate_incident). If you see a "no user account exists" error, point
the user at the portal sign-in; if you see "not a member of team", the
.spaghetti/headers point at the wrong team.
Available tools
Log Analyzer (spaghetti/analyze_logs)
When to call: The user reports errors or a crash in their UE5 project and
has a log file (for example Saved/Logs/<Project>.log, or a crash log).
What it does: Full-log analysis — structured findings with severity and evidence, crash triage naming the suspect Blueprint, and statistics. Uploads are session-based; large logs never flow through chat.
Input: A local log path (logPath) to start a session, or pasted log
text (logText) as the fallback path.
Cost: 5 credits per session, billed only when analysis runs — empty logs or logs with no Error/Fatal entries are free. Retries never bill twice.
Safety: Read-only analysis. Does not modify project files.
Asset Janitor (spaghetti/tidy_assets)
When to call: The user asks about asset cleanup, naming conventions, unused assets, missing LODs, or compliance reports.
What it does: Audits a project asset inventory — unused assets with reclaimable sizes, redirectors, naming-convention violations, LOD problems — and returns a prioritized report plus a downloadable CSV.
Input: An inventory JSONL path. With the UE connector plugin installed,
call its export_asset_inventory tool in the editor first (it writes
Saved/spaghetti_inventory.jsonl); without it, a short Python-console script
produces the same file.
Cost: 3 credits per session, billed only when a report is produced.
Safety: Audit is read-only. If the user wants to apply fixes, use Tool-Maker to generate a dry-run script first.
Research tools (free)
search_docs_code— hybrid search over curated UE engine documentation.search_patterns— recommended engine approaches vs anti-patterns for a described intent.search_logs_temporal— time/severity/subsystem-filtered search over logs previously ingested byanalyze_logs. Requires project context.query_temporal_relations— entity-relation traversal over ingested logs (up to 3 hops, optionally as of a point in time).investigate_incident— bounded investigation combining logs, relations, docs, and patterns. Requires project context.
Tool-Maker (spaghetti/make_tool)
When to call: The user wants to automate a UE5 editor task (batch-rename assets, apply settings, generate reports, etc.).
What it does: Generates an editor-automation Python script from a natural-language description of the task.
Safety — three-layer model:
- API allowlist: only approved editor APIs.
- Dry run: delivered scripts are simulation transforms — destructive
operations commented out, reversible operations wrapped in
unreal.ScopedTransactionfor undo support. - Human approval: the user Approves/Declines via the client's approval flow. Billed 10 credits only on approval; blocked, declined, and cancelled runs are free.
Always show the generated script to the user before executing.
Safety defaults
- Never auto-delete assets without explicit user confirmation.
- Prefer dry-run mode for any script that modifies the project.
- Use ScopedTransaction for reversible operations (enables Ctrl+Z).
- Read the Output Log for errors after any automated editor operation.
Billing
Tool calls bill the user's personal wallet, or the team wallet when team
context is set. If you see 402 Payment Required / "Insufficient credits",
call the free topup tool to create a checkout link, or direct the user to
spaghetti.gg/billing to top up.