MCP, MCP server
Synapse RMCP
Host, Docker, Compose, SSH, logs, ZFS, and file operations over MCP and CLI.
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 cf3bdde6723d, unchanged since the check below.
PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV INSTALL_DOCUMENTED_INSTALLER
Why this grade
- PERMISSION_DELETE_FILES Low
Contains a call that can delete files.
packages/synapse-rmcp/scripts/check-package.js, line 450
fs.rmSync(tempDir, { recursive: true, force: true }); - NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
install.sh, line 97
curl -fsSL "https://api.github.com/repos/${REPO}/releases/latest" \ - NETWORK_UNNAMED_HOST Low
Calls a fixed host that the description does not name.
install.sh, line 97
curl -fsSL "https://api.github.com/repos/${REPO}/releases/latest" \ - SECRETS_PATH_DOTENV Low
Mentions a .env file.
entrypoint.sh, line 71
# .env must not be world-readable - it contains API keys. - INSTALL_DOCUMENTED_INSTALLER Note
Documentation shows an installer that pipes a download into a shell.
install.sh, line 9
# curl -fsSL https://raw.githubusercontent.com/dinglebear-ai/synapse/main/install.sh | 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.
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
Concern
can delete files.
PERMISSION_DELETE_FILES
packages/synapse-rmcp/scripts/check-package.js, line 450
fs.rmSync(tempDir, { recursive: true, force: true });
packages/synapse-rmcp/scripts/install.js, line 80
fs.rmSync(destination, { force: true });
packages/synapse-rmcp/scripts/install.js, line 149
fs.rmSync(tempDir, { recursive: true, force: true });
Show more
packages/synapse-rmcp/scripts/sync-readme.js, line 12
fs.unlinkSync(packageReadme);
packages/synapse-rmcp/scripts/sync-readme.js, line 22
fs.unlinkSync(destination);
scripts/check-blob-size.py, line 27
result = subprocess.run(["git", *args], check=True, capture_output=True, text=True)
scripts/check-yanked-exceptions.py, line 12
result = subprocess.run(
Install and update
Note
The docs document an installer that pipes a download into a shell.
INSTALL_DOCUMENTED_INSTALLER
install.sh, line 9
# curl -fsSL https://raw.githubusercontent.com/dinglebear-ai/synapse/main/install.sh | bash
docs/SCRIPTS.md, line 103
curl -fsSL https://raw.githubusercontent.com/dinglebear-ai/synapse/main/install.sh | bash
Network
Concern
can reach api.github.com. The description does not name that host. can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST
install.sh, line 97
curl -fsSL "https://api.github.com/repos/${REPO}/releases/latest" \
install.sh, line 126
if ! curl --proto '=https' --proto-redir '=https' --max-redirs 5 --connect-timeout 15 --max-time 120 -fsSL --progress-bar "${url}" -o "${tmp_dir}/${archive}"; then
install.sh, line 135
curl --proto '=https' --proto-redir '=https' --max-redirs 5 --connect-timeout 15 --max-time 30 -fsSL \
Show more
install.sh, line 205
printf ' 5. Check health: curl http://localhost:40080/health\n'
apps/web/components/api/action-card.tsx, line 7
const curlExample = `curl -X POST ${apiBaseUrl}${WEB_APP_CONFIG.restEndpoint} \\
apps/web/lib/api.ts, line 73
const res = await fetch(url, options);
packages/synapse-rmcp/scripts/check-package.js, line 335
const request = https.request(url, { method: "HEAD" }, (response) => {
packages/synapse-rmcp/scripts/install.js, line 42
const request = https.get(parsed, (response) => {
plugins/synapse/skills/synapse/SKILL.md, line 236
curl -sX POST "http://${SYNAPSE_MCP_HOST:-127.0.0.1}:${SYNAPSE_MCP_PORT:-40080}/v1/synapse" \
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
entrypoint.sh, line 71
# .env must not be world-readable - it contains API keys.
entrypoint.sh, line 72
if [ -f "${DATA_DIR}/.env" ]; then
entrypoint.sh, line 73
chmod 600 "${DATA_DIR}/.env"
Show more
entrypoint.sh, line 95
# echo " Set it in your .env file or Docker environment." >&2
install.sh, line 201
printf ' 1. Copy the example config: cp .env.example .env\n'
install.sh, line 202
printf ' 2. Edit .env and set: SYNAPSE_MCP_HOST, SYNAPSE_MCP_PORT\n'
packages/synapse-rmcp/scripts/check-package.js, line 238
".env",
scripts/block-env-commits.sh, line 3
# scripts/block-env-commits.sh - Pre-commit guard: block .env secrets
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Pass
No encoded or minified payload found.
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 cf3bdde6723d. can delete files. The docs document an installer that pipes a download into a shell. can reach api.github.com. The description does not name that host. can reach a host that is not written as a fixed address. reads a credential or environment file.
Date and source
Date checked:
github.com
Commit graded: cf3bdde6723d08529a30bf35d13f356f6ab968e5
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