Skills/npm/huly-mcp

huly-mcp@0.56.0

VERIFIED· not started

Publisher claims: "Huly MCP: feature-complete MCP server for Huly integration" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher firfi · publishing for 285 daysInstalls 3,965Last detonated 3d ago
$claude mcp add huly-mcp -- npx -y @firfi/huly-mcp
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Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
no credential variables read in the code
Where it talks to
no vendor host named in the code
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it under the guard. Not started: dependency install failed; the server itself was not observed. The code names no credential variable; the guard pins the network to what the honeypot saw and logs every call.

$vet-skills run --net declared -- npx -y @firfi/huly-mcp

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-11 and scored it 89/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 22 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
22sprocessdependency install exit 1 · (node:1047) [UNDICI-EHPA] Warning: EnvHttpProxyAgent is experimental, expect them to change at any time. (Use `node --trace-warnings ...` to show where the warning was created) npm error A complete log of this run can be found in: /tmp/ks-detonate-ZQzNLq/task/home/.npm/_logs/2026-11-11T19_15_02_116Z
22sclaimednot started: dependency install failed (exit 1); the server itself was not observed
22sprocessscript backend runs setup only
22sprocessno install scripts to re-run

Static findings

HIGH
Collapsed <details> block carrying instructionsREADME.md:156 · Collapsed <details> block carrying instructions<summary>OpenCode</summary> Open the global configuration file (`~/.config/opencode/opencode.json`) and merge this entry into your config: ```json { "mcp": { "hFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
HIGH
Collapsed <details> block carrying instructionsREADME.md:70 · Collapsed <details> block carrying instructions<summary>Codex</summary> `npx` automatically downloads and caches Huly MCP; `pnpm dlx @firfi/huly-mcp@latest` is an alternative. Huly is optional, so Codex can Fix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
CRITICAL
HTML comment carrying imperative instructions to the agentREADME.md:354 · HTML comment carrying imperative instructions to the agentAUTO-GENERATED from src/mcp/tools/ descriptions. Do not edit manually. Run `pnpm update-readme` to regenerate.Fix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01
HIGH
Collapsed <details> block carrying instructionsREADME.md:92 · Collapsed <details> block carrying instructions<summary>Claude Code</summary> ```bash claude mcp add huly \ -e MCP_TRANSPORT=stdio-resident \ -e HULY_URL=https://your-huly-instance.example.com \ -e HULY_TOKEFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
CRITICAL
HTML comment carrying imperative instructions to the agentREADME.md:339 · HTML comment carrying imperative instructions to the agentAUTO-GENERATED from src/mcp/resources.ts resourceTemplates. Do not edit manually. Run `pnpm update-readme` to regenerate.Fix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01
HIGH
Collapsed <details> block carrying instructionsREADME.md:118 · Collapsed <details> block carrying instructions<summary>VS Code</summary> Add with Command Palette → "MCP: Add Server", or put this in a VS Code MCP config such as `.vscode/mcp.json`. Do not commit workspaceFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01

Cost to the agent

Instructions loaded
≈51 tok
1 file · 5 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for @firfi/huly-mcp@0.56.0 as of 3d ago. This is the package itself, not its dependencies.