MCP, MCP server
gooners
MCP (Model Context Protocol) servers, AI tools, and agent skills built on go-faster technologies.
Compatibility: Not stated.
Grade D
Two or more Medium findings, or a High. Only try it in a sandbox.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
NETWORK_HOST_FROM_INPUT SECRETS_PATH_CREDENTIAL
Why this grade
- NETWORK_HOST_FROM_INPUT High
A file takes a URL or endpoint as input and has no fixed host list.
blob/attach_test.go, line 43
resp := fetch(t, srv, b.URL, nil) - SECRETS_PATH_CREDENTIAL Medium
Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).
internal/e2e/mcp_e2e_test.go, line 596
cmd := fmt.Sprintf("mkdir -p ~/.ssh && chmod 700 ~/.ssh && echo '%s' >> ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys", strings.TrimSpace(string(pubBytes)))
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
cmd/opencode-handoff-mcp/main.go, line 233
cmd := exec.CommandContext(ctx, "opencode", argv...) //nolint:gosec // Operator-controlled local opencode invocation.
internal/gateway/secret.go, line 121
out, cmdErr := exec.CommandContext(ctx, argv[0], argv[1:]...).Output() //nolint:gosec // G204: argv comes from operator TOML config, not user input
internal/gateway/transport/transport.go, line 70
cmd := exec.Command(command[0], command[1:]...) //nolint:gosec // G204: command comes from operator TOML config (stdio upstream)
Show more
internal/session/config.go, line 431
cmd := exec.Command("sh", "-c", expanded) //nolint:gosec // proxy command is user-controlled, same as OpenSSH ProxyCommand
internal/tools/core/sudo_password.go, line 160
out, err := exec.Command(argv[0], argv[1:]...).Output() //nolint:gosec // G204: argv[0] is operator-supplied config, not user input
tunnel/cloudflared/cloudflared.go, line 60
cmd := exec.CommandContext(ctx, "cloudflared", args...) //nolint:gosec // local trusted execution
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Serious
accepts a host from input, with no fixed list in this file.
NETWORK_HOST_FROM_INPUT
blob/attach_test.go, line 43
resp := fetch(t, srv, b.URL, nil)
blob/attach_test.go, line 74
require.Equal(t, http.StatusOK, fetch(t, srv, b.URL, nil).StatusCode)
blob/attach_test.go, line 78
require.Equal(t, http.StatusNotFound, fetch(t, srv, b.URL, nil).StatusCode)
Show more
blob/attach_test.go, line 181
resp := fetch(t, srv, b.URL, nil)
blob/content_test.go, line 102
resp := fetch(t, srv, b.URL, nil)
blob/http_test.go, line 53
func fetch(t *testing.T, srv *httptest.Server, rawURL string, header http.Header) *http.Response {
blob/http_test.go, line 85
resp := fetch(t, srv, b.URL, nil)
blob/http_test.go, line 129
resp := fetch(t, srv, b.URL, http.Header{"Range": []string{"bytes=2-5"}})
internal/tools/gitlab/releases.go, line 484
r to a temporary URL you can fetch with curl when it is omitted. Only paths under the
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL
cmd/alertmanager-mcp/main.go, line 33
alertmanagerToken = flag.String("alertmanager-token", os.Getenv("ALERTMANAGER_TOKEN"), "Alertmanager API token")
cmd/alertmanager-mcp/main.go, line 35
alertmanagerPassword = flag.String("alertmanager-password", os.Getenv("ALERTMANAGER_PASSWORD"), "Alertmanager password for basic auth")
internal/e2e/mcp_e2e_test.go, line 596
cmd := fmt.Sprintf("mkdir -p ~/.ssh && chmod 700 ~/.ssh && echo '%s' >> ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys", strings.TrimSpace(string(pubBytes)))
Show more
cmd/alertmanager-mcp/main.go, line 38
prometheusToken = flag.String("prometheus-token", os.Getenv("PROMETHEUS_TOKEN"), "Prometheus API token")
cmd/alertmanager-mcp/main.go, line 40
prometheusPassword = flag.String("prometheus-password", os.Getenv("PROMETHEUS_PASSWORD"), "Prometheus password for basic auth")
cmd/alertmanager-mcp/main.go, line 44
upstreamClientKeyFile = flag.String("upstream-client-key-file", os.Getenv("UPSTREAM_CLIENT_KEY_FILE"), "client key file for Alertmanager and Prometheus mTLS connections")
cmd/gitlab-mcp/main.go, line 34
token = flag.String("gitlab-token", os.Getenv("GITLAB_TOKEN"), "GitLab API token; defaults to the glab CLI's stored token")
cmd/grafana-dashboard-mcp/main.go, line 42
grafanaToken = flag.String("grafana-token", os.Getenv("GRAFANA_TOKEN"), "Grafana API token or service account token")
cmd/grafana-dashboard-mcp/main.go, line 44
grafanaPassword = flag.String("grafana-password", os.Getenv("GRAFANA_PASSWORD"), "Grafana password for basic auth")
internal/e2e/mcp_e2e_test.go, line 602
// Configure ~/.ssh/config
internal/e2e/mcp_e2e_test.go, line 793
// populateKnownHosts writes ~/.ssh/known_hosts into homeDir with entries for
internal/gateway/config.go, line 68
// and friends, or ~/.aws/credentials), so the file can be committed and so the
internal/session/config.go, line 34
// ProxyJump overrides the ProxyJump directive from ~/.ssh/config.
internal/session/config.go, line 37
// HomeDir overrides the home directory used to resolve ~/.ssh/config,
internal/session/config.go, line 38
// ~/.ssh/known_hosts, and identity keys. Defaults to homeDir() if empty.
internal/session/config.go, line 156
// directives from ~/.ssh/config (unless overridden by Config fields).
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
internal/tools/opencode/opencode.openapi.json, line 1
{
internal/tools/opencode/opencodeapi/oas_json_gen.go, line 1
// Code generated by ogen, DO NOT EDIT.
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 22fc8d411338. requests shell access. The manifest names this permission. accepts a host from input, with no fixed list in this file. 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: 22fc8d4113383070dc5ae9dd7042ee1a02344152
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.