MCP, MCP server
ArcAgent MCP
Zero-trust bounty verification for the agentic economy.
Compatibility: Not stated.
Grade D
Two or more Medium findings, or a High finding. Only try it in a sandbox.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
INSTALL_REMOTE_SCRIPT
Why this grade
- INSTALL_REMOTE_SCRIPT High
Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).
infra/aws/scripts/build-rootfs.sh, line 129
chroot "$MOUNT_DIR" bash -c 'curl -fsSL https://deb.nodesource.com/setup_20.x | bash -'
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Note
requests shell access. The manifest names this permission.
PERMISSION_SHELL_DECLARED
guest-agent/main.go, line 176
cmd = exec.Command("su", "-", req.User, "-c", req.Command)
guest-agent/main.go, line 178
cmd = exec.Command("bash", "-c", req.Command)
guest-agent/main.go, line 236
cmd = exec.Command("su", "-", req.User, "-c", req.Command)
Show more
guest-agent/main.go, line 238
cmd = exec.Command("bash", "-c", req.Command)
guest-agent/main.go, line 319
chownCmd := exec.Command("chown", req.Owner, req.Path)
guest-agent/main.go, line 321
chownCmd = exec.Command("chown", parts[0], req.Path)
Install and update
Serious
install fetches a script from the network.
INSTALL_REMOTE_SCRIPT
infra/aws/scripts/build-rootfs.sh, line 129
chroot "$MOUNT_DIR" bash -c 'curl -fsSL https://deb.nodesource.com/setup_20.x | bash -'
infra/aws/scripts/build-rootfs.sh, line 145
chroot "$MOUNT_DIR" bash -c 'curl --proto "=https" --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable'
infra/aws/scripts/setup-host.sh, line 136
curl -fsSL "https://deb.nodesource.com/setup_$NODE_VERSION.x" | bash -
Show more
infra/aws/scripts/setup-host.sh, line 164
curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b /usr/local/bin || true
infra/aws/scripts/setup-host.sh, line 170
curl -sfL https://raw.githubusercontent.com/aquasecurity/trivy/main/contrib/install.sh | sh -s -- -b /usr/local/bin || true
infra/rootfs/Dockerfile.node-20, line 23
RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && \
worker/rootfs/node.Dockerfile, line 54
RUN curl -sfL https://raw.githubusercontent.com/aquasecurity/trivy/main/contrib/install.sh | sh -s -- -b /usr/local/bin
Network
Concern
can reach a host that is not written as a fixed address. can reach gitlab.com. The description does not name that host. can reach api.bitbucket.org. The description does not name that host. can reach bitbucket.org. The description does not name that host. can reach api.voyageai.com. The description does not name that host. can reach api.resend.com. The description does not name that host. can reach api.linear.app. The description does not name that host. can reach api.monday.com. The description
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST NETWORK_NAMED_HOST
convex/attemptWorkersNode.ts, line 201
const response = await fetch(`${controlHost}/api/health`, {
convex/aws.ts, line 222
const response = await fetch(`${args.workerHost}/health`, {
convex/devWorkspaces.ts, line 382
await fetch(`${args.workerHost}/api/workspace/destroy`, {
Show more
convex/http.ts, line 2909
const response = await fetch(`${workerHost.replace(/\/+$/, "")}/api/health`, {
convex/providerConnections.ts, line 141
const response = await fetch("https://gitlab.com/api/v4/user", {
convex/providerConnections.ts, line 153
const response = await fetch("https://api.bitbucket.org/2.0/user", {
convex/providerConnections.ts, line 176
const response = await fetch("https://gitlab.com/oauth/token", {
convex/providerConnections.ts, line 217
const response = await fetch("https://bitbucket.org/site/oauth2/access_token", {
infra/aws/scripts/setup-host.sh, line 244
test: ["CMD-SHELL", "curl -f http://localhost:9000/api/system/status | grep -q UP"]
infra/aws/scripts/setup-worker.sh, line 204
curl -fsS -m 5 "http://127.0.0.1:3001/api/health" >/dev/null
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
convex/attemptWorkersNode.ts, line 374
const keyName = process.env.ATTEMPT_WORKER_KEY_NAME;
convex/aws.ts, line 16
const accessKeyId = process.env.AWS_ACCESS_KEY_ID;
convex/aws.ts, line 17
const secretAccessKey = process.env.AWS_SECRET_ACCESS_KEY;
Show more
convex/aws.ts, line 216
const workerSecret = process.env.WORKER_SHARED_SECRET;
convex/devWorkspaces.ts, line 265
const workerSecret = process.env.WORKER_SHARED_SECRET;
convex/devWorkspaces.ts, line 371
const workerSecret = process.env.WORKER_SHARED_SECRET;
convex/http.ts, line 70
const webhookSecret = process.env.CLERK_WEBHOOK_SECRET;
convex/http.ts, line 248
const webhookSecret = process.env.GITHUB_WEBHOOK_SECRET;
convex/lib/github.ts, line 32
".env/",
mcp-server/src/lib/clerk.ts, line 7
"Set it in your mcp-server/.env file.",
scripts/e2e/run_live_webhooks.mjs, line 138
...env,
scripts/env/lib.mjs, line 190
const envPath = path.join(tempDir, `${environment}.env`);
scripts/env/sync_worker_from_vercel.mjs, line 24
return path.join(repoRoot, "worker", ".env.generated");
.dockerignore, line 3
dist
.dockerignore, line 4
.env
.dockerignore, line 6
!.env.example
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. the file cap was reached before every file was read.
OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED
package-lock.json, line 1
{
src/app/(dashboard)/repos/page.tsx, line 1
"use client";
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 0c75f27512a7. requests shell access. The manifest names this permission. install fetches a script from the network. can reach a host that is not written as a fixed address. can reach gitlab.com. The description does not name that host. can reach api.bitbucket.org. The description does not name that host. can reach bitbucket.org. The description does not name that host. can reach api.voyageai.com. The description does not name that host. can reach api.resend.com. The description does not name that host. can reach api.linear.app. The description does not name that host. can reach api.monday.com. The description reads a credential or environment file. a fil
Date and source
Date checked:
github.com
Commit graded: 0c75f27512a7257901fe09eed8c78ae23133ec5b
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.