Grades are a hygiene check, not a security guarantee.

MCP, MCP server

VRChat MCP

VRChat MCP, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit 714da3ac1e03, unchanged since the check below.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    scripts/build-mcpb.ts, line 248 await fs.rm(outputPath, { force: true });

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    scripts/generate-tools-docs.ts, line 89 const res = await fetch(SPEC_URL);

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    scripts/generate-tools-docs.ts, line 89 const res = await fetch(SPEC_URL);

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 34 .env

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    scripts/metrics/tool-budget.ts, line 525 process.env.VRCHAT_MCP_TOOL_BUDGET_MAX_TOKENS,

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    package-lock.json, line 1 {

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    scripts/build-mcpb.ts, line 248

    await fs.rm(outputPath, { force: true });

    scripts/build-mcpb.ts, line 261

    await fs.rm(buildRoot, { recursive: true, force: true });

    src/auth/autoLogin.ts, line 116

    await fs.rm(lockPath, { force: true });

    Show more

    src/auth/autoLogin.ts, line 149

    await fs.rm(lockPath, { force: true });

    src/auth/cookieStore.ts, line 75

    await fs.unlink(this.filePath);

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach api.vrchat.cloud. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    scripts/generate-tools-docs.ts, line 89

    const res = await fetch(SPEC_URL);

    src/auth/index.ts, line 523

    const res1 = await fetch('https://api.vrchat.cloud/api/1/auth/user', {

    src/auth/index.ts, line 548

    const res2 = await fetch('https://api.vrchat.cloud/api/1/auth/twofactorauth/totp/verify', {

    Show more

    src/auth/index.ts, line 573

    const res2 = await fetch(

    src/core/client.ts, line 353

    const res = await fetch(url, await buildInit());

    src/core/client.ts, line 358

    return { res: await fetch(url, await buildInit()) };

    src/core/spec.ts, line 47

    const res = await fetch(specUrl);

    src/services/pipeline/manager.ts, line 126

    const socket = new WebSocket(url.toString(), {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    scripts/metrics/tool-budget.ts, line 525

    process.env.VRCHAT_MCP_TOOL_BUDGET_MAX_TOKENS,

    scripts/metrics/tool-budget.ts, line 529

    process.env.VRCHAT_MCP_TOOL_BUDGET_MAX_LLM_INPUT_TOKENS,

    .gitignore, line 34

    .env

    Show more

    scripts/metrics/tool-budget.ts, line 533

    process.env.VRCHAT_MCP_TOOL_BUDGET_MAX_MCP_WIRE_TOKENS,

    scripts/metrics/tool-budget.ts, line 537

    process.env.VRCHAT_MCP_TOOL_BUDGET_MAX_INPUT_SCHEMA_STRUCTURE_TOKENS,

    scripts/metrics/tool-budget.ts, line 541

    process.env.VRCHAT_MCP_TOOL_BUDGET_MAX_OUTPUT_SCHEMA_STRUCTURE_TOKENS,

    scripts/metrics/tool-budget.ts, line 545

    process.env.VRCHAT_MCP_TOOL_BUDGET_MAX_TOOL_DESCRIPTION_TOKENS,

    src/index.ts, line 39

    const bearerToken = process.env.VRCHAT_MCP_HTTP_BEARER_TOKEN ?? '';

    src/auth/autoLogin.ts, line 36

    const password = process.env.VRCHAT_MCP_PASSWORD;

    .gitignore, line 33

    # Environment files

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Note

    a file was over the read cap and was not fully read.

    OBFUSCATION_FILE_OVER_READ_CAP

    package-lock.json, line 1

    {

    docs/tools.md, line 1

    # Tool Catalog (generated)

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit 714da3ac1e03. can delete files. can reach a host that is not written as a fixed address. can reach api.vrchat.cloud. The description does not name that host. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: 714da3ac1e037b1e61c3a3093ebca99d3d721326

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen