MCP, MCP server
Simulator Ai Plugin
Simulator.Company platform assistant.
Compatibility: Not stated.
Grade C
One Medium finding. Read the findings before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit 5595a97944c6, unchanged since the check below.
INSTALL_REMOTE_SCRIPT
Why this grade
- INSTALL_REMOTE_SCRIPT Medium
Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).
Makefile, line 33
# curl -sSfL https://golangci-lint.run/install.sh | sh -s -- -b $$(go env GOPATH)/bin v2.14.0
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Note
requests shell access. The manifest names this permission.
PERMISSION_SHELL_DECLARED
plugins/simulator/mcp-server/app/auth/oauth.go, line 313
if err := exec.Command("open", u).Start(); err == nil {
plugins/simulator/mcp-server/app/auth/oauth.go, line 316
if err := exec.Command("xdg-open", u).Start(); err == nil {
plugins/simulator/mcp-server/app/auth/oauth.go, line 319
if err := exec.Command("rundll32", "url.dll,FileProtocolHandler", u).Start(); err == nil {
Show more
plugins/simulator/mcp-server/cmd/evalrunner/main.go, line 524
cmd := exec.Command("go", "run", "./cmd/server")
.github/workflows/ci.yml, line 55
res = subprocess.run(
Install and update
Serious
install fetches a script from the network.
INSTALL_REMOTE_SCRIPT
Makefile, line 33
# curl -sSfL https://golangci-lint.run/install.sh | sh -s -- -b $$(go env GOPATH)/bin v2.14.0
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
plugins/simulator/mcp-server/run.sh, line 28
if command -v curl >/dev/null 2>&1; then
plugins/simulator/mcp-server/run.sh, line 29
curl -fsSL "$1" -o "$2" 2>/dev/null
plugins/simulator/mcp-server/run.sh, line 30
elif command -v wget >/dev/null 2>&1; then
Show more
plugins/simulator/mcp-server/run.sh, line 31
wget -q "$1" -O "$2" 2>/dev/null
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
AGENTS.md, line 32
app/auth/ set-environment (public config → account URL) + OAuth2 PKCE + .env credential storage
plugins/simulator/mcp-server/app/auth/credentials.go, line 12
// envMu serialises all .env read-modify-write operations. updateEnvFile and
plugins/simulator/mcp-server/app/auth/credentials.go, line 34
// envFilePath returns the path to the .env file.
Show more
plugins/simulator/mcp-server/app/auth/credentials.go, line 39
return filepath.Join(dir, ".env")
plugins/simulator/mcp-server/app/auth/credentials.go, line 42
return filepath.Join(cwd, ".env")
plugins/simulator/mcp-server/app/auth/credentials.go, line 45
// updateEnvFileMulti reads the .env file once, applies all key=value updates,
plugins/simulator/mcp-server/app/auth/credentials.go, line 85
// removeEnvKey removes a key from the .env file.
plugins/simulator/mcp-server/app/auth/credentials.go, line 123
// Returns nil, nil when neither is set. The env vars are populated from .env by
plugins/simulator/mcp-server/app/auth/credentials.go, line 136
token := os.Getenv("ACCESS_TOKEN")
plugins/simulator/mcp-server/app/auth/credentials.go, line 144
if expiryStr := os.Getenv("ACCESS_TOKEN_EXPIRES_AT"); expiryStr != "" {
plugins/simulator/mcp-server/app/auth/credentials_test.go, line 158
if os.Getenv("ACCESS_TOKEN") != "" {
plugins/simulator/mcp-server/cmd/evalrunner/main.go, line 94
apiKey := os.Getenv("ANTHROPIC_API_KEY")
plugins/simulator/mcp-server/cmd/server/dotenv_test.go, line 52
if got := os.Getenv("SIMULATOR_API_SECRET"); got != "wsk_abc" {
plugins/simulator/mcp-server/cmd/server/dotenv_test.go, line 62
if got := os.Getenv("SIMULATOR_API_SECRET"); got != "from_environment" {
plugins/simulator/mcp-server/cmd/server/dotenv_test.go, line 73
if got := os.Getenv("DOTENV_TEST_KEY"); got != "value" {
plugins/simulator/mcp-server/cmd/server/dotenv_test.go, line 117
if got := os.Getenv("ACCESS_TOKEN"); got != "old" {
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.
OBFUSCATION_FILE_OVER_READ_CAP
plugins/simulator/mcp-server/internal/cduschema/smart-forms-swagger.json, line 1
{
plugins/simulator/mcp-server/internal/tools/testdata/papi-openapi.json, line 1
{
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 5595a97944c6. 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. reads a credential or environment file. a file was over the read cap and was not fully read.
Date and source
Date checked:
github.com
Commit graded: 5595a97944c667ae4cc2908321cfaa9415465295
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.