Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Aj Mcp

AJ-MCP A Lightweight Java MCP SDK

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 ccee0a971439, unchanged since the check below.

NETWORK_NO_FIXED_HOST OBFUSCATION_ENCODED_BLOB

Why this grade

  • NETWORK_NO_FIXED_HOST Low

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

    aj-mcp-2026/mcp-core/src/main/java/com/ajaxjs/mcp2026/core/ProtocolSchema.java, line 68 requests.put(method(type), type);

  • OBFUSCATION_ENCODED_BLOB Low

    Contains a long base64 shaped string in a file that should be readable.

    docs/asset/style/common.css, line 265 /*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbIi4vc3JjL2Fzc2V0L3N0eWxlL2NvbW1vbi5sZXNzIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUFBO0VBQ0ksY0FBQTtFQU

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

    Pass

    No shell or command execution found, and no extra permission was declared.

  • 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.

    NETWORK_NO_FIXED_HOST

    aj-mcp-2026/mcp-core/src/main/java/com/ajaxjs/mcp2026/core/ProtocolSchema.java, line 68

    requests.put(method(type), type);

    aj-mcp-2026/mcp-core/src/main/java/com/ajaxjs/mcp2026/core/ProtocolSchema.java, line 116

    String type = requests.get(request.getMethod());

    aj-mcp-2026/mcp-core/src/main/java/com/ajaxjs/mcp2026/core/ProtocolSchema.java, line 201

    String requestType = requests.get(request.getMethod());

  • Secrets

    Pass

    No read of a credential file or secret environment variable found.

  • Agent instructions

    Pass

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

  • Obfuscation

    Concern

    contains an encoded blob in a file that should be readable.

    OBFUSCATION_ENCODED_BLOB

    docs/asset/style/common.css, line 265

    /*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbIi4vc3JjL2Fzc2V0L3N0eWxlL2NvbW1vbi5sZXNzIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUFBO0VBQ0ksY0FBQTtFQU

    docs/asset/style/main.css, line 407

    /*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbIi4vc3JjL2Fzc2V0L3N0eWxlL21haW4ubGVzcyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQTtBQUNBO0VBQ0ksWUFBQT

    docs/asset/style/main2.css, line 407

    /*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbIi4vc3JjL2Fzc2V0L3N0eWxlL21haW4yLmxlc3MiXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6IkFBQUE7QUFDQTtFQUNJLFlBQU

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit ccee0a971439. can reach a host that is not written as a fixed address. contains an encoded blob in a file that should be readable.

Date and source

Date checked:

View source

github.com

Commit graded: ccee0a97143946a4c2003e9d4a97572787049918

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