Claude Code, Plugin
Pev Harness
Claude Opus 4.7 native Plan-Execute-Verify coding harness — a Claude Code plugin that enforces a 3-phase pipeline with hook-driven verification
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit f830297bd067, unchanged since the check below.
NETWORK_NO_FIXED_HOST SECRETS_PATH_UNCONFIRMED OBFUSCATION_ENCODED_BLOB PERMISSION_SHELL_DECLARED
Why this grade
- NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
experiments/harness-effect-v1/reports/verify-scenarios-v2.js, line 16
const ws = new WebSocket(`ws://localhost:${port}`); - SECRETS_PATH_UNCONFIRMED Low
The Secrets check reports a credential or environment file, but no quoted line shows a recognisable path.
CONTRIBUTING.md, line 104
- secrets/credentials を含める (`.gitignore` で `*.env` 追加検討) - OBFUSCATION_ENCODED_BLOB Low
Contains a long base64 shaped string in a file that should be readable.
experiments/harness-effect-v8/logs/t2.stream.jsonl, line 1
{"type":"system","subtype":"hook_started","hook_id":"91190243-2260-4f56-aca3-04f7b1a8eca0","hook_name":"SessionStart:startup","hook_event":"SessionStart","uuid":"39ace3e1-fc3d-46a7 - PERMISSION_SHELL_DECLARED Note
Runs shell commands, and the manifest or description says so.
skills/skill-creator/eval-viewer/generate_review.py, line 291
result = subprocess.run(
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Note
requests shell access. The manifest names this permission.
PERMISSION_SHELL_DECLARED
skills/skill-creator/eval-viewer/generate_review.py, line 291
result = subprocess.run(
skills/skill-creator/scripts/improve_description.py, line 35
result = subprocess.run(
skills/skill-creator/scripts/run_eval.py, line 85
process = subprocess.Popen(
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
experiments/harness-effect-v1/reports/verify-scenarios-v2.js, line 16
const ws = new WebSocket(`ws://localhost:${port}`);
experiments/harness-effect-v1/reports/verify-scenarios.js, line 36
const ws = new WebSocket(`ws://localhost:${target.port}`);
experiments/harness-effect-v1/scratch/with-harness/artifacts/ws-test.mjs, line 21
const ws = new WebSocket(BASE_URL);
Show more
experiments/harness-effect-v1/SPEC.md, line 27
- C4: WebSocket (`ws://` または同等のリアルタイム双方向 transport) を使う (long polling や SSE は不可)
experiments/harness-effect-v1/scratch/no-harness/public/index.html, line 234
ws = new WebSocket(wsUrl());
experiments/harness-effect-v1/scratch/with-harness/public/index.html, line 125
ws = new WebSocket(`${proto}//${location.host}`);
skills/skill-creator/eval-viewer/viewer.html, line 666
const resp = await fetch("/api/feedback");
skills/skill-creator/eval-viewer/viewer.html, line 1012
fetch("/api/feedback", {
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_UNCONFIRMED
CONTRIBUTING.md, line 104
- secrets/credentials を含める (`.gitignore` で `*.env` 追加検討)
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
experiments/harness-effect-v8/logs/t2.stream.jsonl, line 1
{"type":"system","subtype":"hook_started","hook_id":"91190243-2260-4f56-aca3-04f7b1a8eca0","hook_name":"SessionStart:startup","hook_event":"SessionStart","uuid":"39ace3e1-fc3d-46a7
experiments/harness-effect-v8/logs/t3.stream.jsonl, line 1
{"type":"system","subtype":"hook_started","hook_id":"7ccecf18-5a76-4d13-9794-2f7634b96dc9","hook_name":"SessionStart:startup","hook_event":"SessionStart","uuid":"90ea4a29-66e7-4999
experiments/harness-effect-v8/logs/t4.stream.jsonl, line 1
{"type":"system","subtype":"hook_started","hook_id":"ca81d7aa-7b24-4500-8be5-84e87e8848f3","hook_name":"SessionStart:startup","hook_event":"SessionStart","uuid":"d7fce8f6-8d63-4a37
Show more
experiments/harness-effect-v8/logs/t5.stream.jsonl, line 1
{"type":"system","subtype":"hook_started","hook_id":"460d669b-757c-45f6-8200-225052558ae6","hook_name":"SessionStart:startup","hook_event":"SessionStart","uuid":"f9422356-fcdf-4889
experiments/harness-effect-v8/logs/t6.stream.jsonl, line 1
{"type":"system","subtype":"hook_started","hook_id":"13e3f508-615c-4d79-b31d-657ff3be5962","hook_name":"SessionStart:startup","hook_event":"SessionStart","uuid":"aaaa11b3-1c95-4123
experiments/harness-effect-v18/logs/dispatch.log, line 11
{"type":"assistant","message":{"model":"claude-opus-4-8","id":"msg_01H6E29CanUUQYvNAzcHptw9","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
experiments/harness-effect-v18/logs/dispatch.log, line 22
{"type":"assistant","message":{"model":"claude-opus-4-8","id":"msg_01SjKLtrdqzgAkdHAe6THkfQ","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
experiments/harness-effect-v18/logs/dispatch.log, line 32
{"type":"assistant","message":{"model":"claude-opus-4-8","id":"msg_018Xio9WMjpxCQj1qqtgdvsY","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
experiments/harness-effect-v18/logs/dispatch.log, line 45
{"type":"assistant","message":{"model":"claude-opus-4-8","id":"msg_01UqYZZxC2AxB8ZJjrfh9G7D","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
experiments/harness-effect-v18/logs/dispatch.log, line 51
{"type":"assistant","message":{"model":"claude-opus-4-8","id":"msg_01QmxbUVrArVKy3GYZKxuxaQ","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
experiments/harness-effect-v18/logs/dispatch.log, line 88
{"type":"assistant","message":{"model":"claude-opus-4-8","id":"msg_01BGV8PnugbSD6h8ZFZZL9Xn","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
experiments/harness-effect-v18/logs/goalcheck.log, line 17
{"type":"assistant","message":{"model":"claude-opus-4-8","id":"msg_01LzsdYW9gu8YXWLYyCWVUxg","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
experiments/harness-effect-v18/logs/goalcheck.log, line 35
{"type":"assistant","message":{"model":"claude-opus-4-8","id":"msg_01NM8TNvyuSsEEuTqxmEzWD4","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit f830297bd067. 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. contains an encoded blob in a file that should be readable.
Date and source
Date checked:
github.com
Commit graded: f830297bd067818ef26f4cf3881a6a6cf44ec453
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.