Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Myco: Agent-First Cognitive Substrate

Myco: Agent-First Cognitive Substrate, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings 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 932f19f3d40f, unchanged since the check below.

OBFUSCATION_ENCODED_BLOB

Why this grade

  • OBFUSCATION_ENCODED_BLOB Medium

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

    substrate/src/events/attestation.rs, line 529 const SPAWN_COSIGN_PARITY_HEX: &str = "31072006646f6d61696e20146d79636f2d737061776e2d636f7369676e2d7631200c616e63686f725f6e6f6e63652120030303030303030303030303030303030303030303030

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

    substrate/src/sealing.rs, line 83

    //! Per PIP discipline ("changed code without build/test/curl = malpractice"):

  • 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

    substrate/src/events/attestation.rs, line 529

    const SPAWN_COSIGN_PARITY_HEX: &str = "31072006646f6d61696e20146d79636f2d737061776e2d636f7369676e2d7631200c616e63686f725f6e6f6e63652120030303030303030303030303030303030303030303030

    test_vectors/canonical_bytes_v1.json, line 111

    "output_hex": "218001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

    test_vectors/crypto_v1.json, line 87

    "key_hex": "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

  • 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 932f19f3d40f. 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: 932f19f3d40ff62f03207b1f9e740394db3eff3e

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