Borrowing it
Nothing to install: this file belongs to tc-imba/ue-official-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/tc-imba/ue-official-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/tc-imba/ue-official-mcpWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/tc-imba/ue-official-mcp/claude-md)<a href="https://agentmods.dev/instructions/tc-imba/ue-official-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/tc-imba/ue-official-mcp/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/tc-imba/ue-official-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/tc-imba/ue-official-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01653 | $0.01653 |
| Opus 5 | $0.00826 | $0.00826 |
| Sonnet 5 | $0.00331 | $0.00331 |
| Haiku 4.5 | $0.00165 | $0.00165 |
Grade A, and why
ue-official-mcp CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Project-specific context for Claude Code sessions. The README is the user-facing doc — this file captures what Claude needs to know that isn't obvious from reading the code.
What this is
A toolkit that probes a live UE editor's official ModelContextProtocol server, captures every
toolset's tools + schemas, and publishes the catalog as a portable Claude skill (one per Epic
release). Replaces blind live describe_toolset discovery with file reads (~1,000–3,000× faster).
See README.md "Why this exists" for the full motivation.
Core invariants — don't break these
- Skill folder name == probe filename version.
skills/ue-official-mcp-X.Y.Z/matchesprobes/X.Y.Z.jsonexactly.paths.skill_name()enforces this; route any new path throughpaths.pyrather than hardcoding strings. - Both axes use the full
X.Y.Zversion. Patch releases (5.8.1,5.8.2) get their own probe AND their own skill. Rationale: MCP is Experimental and schemas drift across patches; pinning prevents silent breakage when a consumer's editor and the cached schemas disagree. - Generated files are never hand-edited. Everything under
skills/<X.Y.Z>/references/regenerates fromprobes/<X.Y.Z>.jsonviagenerate.py. Each generated file has a "do not hand-edit" header. - Frontmatter
name:in eachSKILL.mdmust equal its parent folder name (Anthropic skill convention). toolset_map.yamlis the curator source for domain grouping. Shared across all engine versions — one map, many skills. Edit the map, then re-generate; never edit the<domain>.mdoutputs directly.
Common commands
All commands run via uv (Python deps managed by uv, not pip directly):
uv run ue-mcp-skills sync --engine X.Y.Z --launch— launches UE, probes it, writesprobes/X.Y.Z.json+ regenerates the matching skill folder.uv run ue-mcp-skills sync --engine X.Y.Z --endpoint URL— same, against an already-running editor (skips the launch step).uv run ue-mcp-skills generate [--engine X.Y[.Z]]— offline rebuild from a saved probe. WithX.Y, picks the highest patch present.uv run ue-mcp-skills build [--serve]— mkdocs site over the engine pinned inmkdocs.yml.uv run python -m mkdocs build --strict— direct mkdocs invocation (what CI runs).
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 108 lines · 1,653 tokens per session scan A 76de632f47c7
ue-official-mcp CLAUDE.md is an instructions file published in the GitHub repository tc-imba/ue-official-mcp (2 stars, last pushed 2mo ago), licensed MIT. It adds 1,653 tokens to every session, about $0.0083 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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