Grades are a hygiene check, not a security guarantee.

Claude Code, Skill

hardknock

Evidence-backed experience for autonomous agents. Hardknock runs bounded trials, records what happened, and uses tested, scoped lessons to inform later work.

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.

NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED OBFUSCATION_FILE_CAP_REACHED

Why this grade

  • NETWORK_NO_FIXED_HOST Low

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

    scripts/install.sh, line 1307 command -v curl >/dev/null 2>&1 || fail "curl is required"

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    src/bridge/diagnostics.rs, line 645 .env(LOGGER_ENV, token)

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    integrations/hermes/__init__.py, line 108 subprocess.run([os.environ.get("HARDKNOCK_BIN", "hardknock"), "--home", str(client.home), "bridge", "start"],

  • OBFUSCATION_FILE_CAP_REACHED Note

    The 400 file cap was reached before every file was read.

    src/doctor.rs, line 1 // SPDX-License-Identifier: Apache-2.0

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

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    integrations/hermes/__init__.py, line 108

    subprocess.run([os.environ.get("HARDKNOCK_BIN", "hardknock"), "--home", str(client.home), "bridge", "start"],

    scripts/bridge_soak.py, line 346

    completed = subprocess.run(

    scripts/bridge_soak.py, line 497

    completed = subprocess.run(

    Show more

    scripts/bridge_soak.py, line 602

    completed = subprocess.run(

    scripts/test_bridge_soak.py, line 189

    descendant = subprocess.Popen(

    scripts/test_bridge_soak.py, line 266

    process = subprocess.Popen(

    scripts/test_bridge_soak.py, line 788

    return subprocess.run(

    scripts/test_bridge_soak.py, line 816

    completed = subprocess.run(

  • 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

    scripts/install.sh, line 1307

    command -v curl >/dev/null 2>&1 || fail "curl is required"

    scripts/install.sh, line 1308

    if ! curl --disable \

    scripts/test_install.sh, line 2261

    begin_test "HTTPS downloads use hardened curl options without network access"

    Show more

    src/federation/transport.rs, line 39

    fn fetch(&self, selector: &FederationSelector) -> Result<Vec<SignedExperienceBundle>>;

    src/federation/transport.rs, line 184

    fn fetch(&self, selector: &FederationSelector) -> Result<Vec<SignedExperienceBundle>> {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    src/bridge/diagnostics.rs, line 645

    .env(LOGGER_ENV, token)

    src/development/benchmark.rs, line 29

    .env("PATH", "/usr/bin:/bin")

    src/development/benchmark.rs, line 30

    .env("HOME", root)

    Show more

    src/development/benchmark.rs, line 31

    .env("GIT_CONFIG_NOSYSTEM", "1")

    src/development/benchmark.rs, line 32

    .env("GIT_CONFIG_GLOBAL", "/dev/null")

    src/development/benchmark.rs, line 33

    .env("GIT_AUTHOR_DATE", "2026-01-01T00:00:00Z")

    src/development/benchmark.rs, line 34

    .env("GIT_COMMITTER_DATE", "2026-01-01T00:00:00Z")

    src/dojo.rs, line 339

    .env("GIT_INDEX_FILE", &index)

  • Agent instructions

    Pass

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

  • Obfuscation

    Note

    the file cap was reached before every file was read.

    OBFUSCATION_FILE_CAP_REACHED

    src/doctor.rs, line 1

    // SPDX-License-Identifier: Apache-2.0

  • 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 87ffa4e443bb. requests shell access. The manifest names this permission. can reach a host that is not written as a fixed address. reads a credential or environment file. the file cap was reached before every file was read.

Date and source

Date checked:

View source

github.com

Commit graded: 87ffa4e443bb0322850648f6b681d4ba27a3ce35

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