MCP, MCP server
runx
The governed runtime for agent skills.
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.
Rescanned at commit eedbf68677a0.
PERMISSION_SHELL_UNDECLARED SECRETS_PATH_CREDENTIAL OBFUSCATION_ENCODED_BLOB OBFUSCATION_MINIFIED_PAYLOAD
Why this grade
- PERMISSION_SHELL_UNDECLARED Medium
Runs shell commands that the manifest or description does not mention.
connectors/reddit/tools/reddit/brave/brave.py, line 46
result = subprocess.run(["osascript", "-e", source], capture_output=True, text=True, timeout=15, check=False) - SECRETS_PATH_CREDENTIAL Medium
Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).
.github/workflows/release.yml, line 604
printf '%s\n' "$AUR_SSH_PRIVATE_KEY" | tr -d '\r' > ~/.ssh/aur - OBFUSCATION_ENCODED_BLOB Medium
Contains a long base64 shaped string in a file that should be readable.
connectors/reddit/tools/reddit/brave/brave.py, line 32
THREAD_JS = "JSON.stringify((function(){const p=document.querySelector('shreddit-post');if(!p)return {error:'post_not_rendered'};const c=Array.from(document.querySelectorAll('shred - OBFUSCATION_MINIFIED_PAYLOAD Medium
Contains a very long line with almost no spaces in a script or style file.
connectors/reddit/tools/reddit/brave/brave.py, line 32
THREAD_JS = "JSON.stringify((function(){const p=document.querySelector('shreddit-post');if(!p)return {error:'post_not_rendered'};const c=Array.from(document.querySelectorAll('shred
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
requests shell access. No manifest field names shell or command execution.
PERMISSION_SHELL_UNDECLARED
connectors/reddit/tools/reddit/brave/brave.py, line 46
result = subprocess.run(["osascript", "-e", source], capture_output=True, text=True, timeout=15, check=False)
fixtures/skills/scafld-native-smoke/run.py, line 73
result = subprocess.run(
packages/sdk-python/runx/__init__.py, line 89
completed = subprocess.run(
Install and update
Note
The docs document an installer that pipes a download into a shell.
INSTALL_DOCUMENTED_INSTALLER
README.md, line 84
curl -fsSL https://runx.ai/install | sh
SKILL.md, line 126
curl -fsSL https://runx.ai/install | sh
Network
Concern
can reach a host that is not written as a fixed address. can reach api.github.com. The description does not name that host.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST
crates/runx-parser/src/package/javascript/tests.rs, line 92
("export default () => fetch('/data');", "fetch"),
crates/runx-parser/src/package/javascript/tests.rs, line 113
"export default () => 'fetch() process.env RUNX_INPUTS_JSON';",
.github/workflows/release.yml, line 82
const response = await fetch(`https://api.github.com/repos/${process.env.GITHUB_REPOSITORY}/releases/tags/${process.env.GITHUB_REF_NAME}`, {
Show more
.github/workflows/release.yml, line 728
const tokenResponse = await fetch(tokenUrl);
.github/workflows/release.yml, line 732
const manifest = await fetch(`https://ghcr.io/v2/runxhq/runx/manifests/${process.env.RUNX_RELEASE_VERSION}`, {
crates/runx-runtime/src/drivers/web.rs, line 96
fetch(self.transport, self.call.env, self.call.arguments)
crates/runx-runtime/src/drivers/web.rs, line 113
fn fetch(
crates/runx-runtime/src/drivers/web.rs, line 302
fetch(&exchanges, env, &input)
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV
crates/runx-parser/src/package/javascript/tests.rs, line 95
"export default () => process.env.TOKEN;",
.github/workflows/release.yml, line 604
printf '%s\n' "$AUR_SSH_PRIVATE_KEY" | tr -d '\r' > ~/.ssh/aur
.github/workflows/release.yml, line 605
chmod 600 ~/.ssh/aur
Show more
.github/workflows/release.yml, line 606
ssh-keyscan -t ed25519 aur.archlinux.org 2>/dev/null > ~/.ssh/known_hosts
crates/runx-cli/src/command_spec/catalog.rs, line 181
riable the environment and the workspace .env set to different values is refused.",
crates/runx-cli/src/command_spec/catalog.rs, line 182
set in the environment or the workspace .env is bound to that variable: the instance
crates/runx-contracts/src/connector_instance.rs, line 114
/// workspace `.env`. The instance holds the variable's name, never its
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. contains a minified payload.
OBFUSCATION_ENCODED_BLOB OBFUSCATION_MINIFIED_PAYLOAD
connectors/reddit/tools/reddit/brave/brave.py, line 32
THREAD_JS = "JSON.stringify((function(){const p=document.querySelector('shreddit-post');if(!p)return {error:'post_not_rendered'};const c=Array.from(document.querySelectorAll('shred
crates/runx-contracts/examples/runx-x402-fixtures.rs, line 15
const OFFICIAL_REQUIRED_HEADER: &str = "eyJ4NDAyVmVyc2lvbiI6MiwiZXJyb3IiOiJQQVlNRU5ULVNJR05BVFVSRSBoZWFkZXIgaXMgcmVxdWlyZWQiLCJyZXNvdXJjZSI6eyJ1cmwiOiJodHRwczovL2FwaS5leGFtcGxlLmNv
crates/runx-contracts/examples/runx-x402-fixtures.rs, line 16
onst OFFICIAL_SIGNATURE_HEADER: &str = "eyJ4NDAyVmVyc2lvbiI6MiwicmVzb3VyY2UiOnsidXJsIjoiaHR0cHM6Ly9hcGkuZXhhbXBsZS5jb20vcHJlbWl1bS1kYXRhIiwiZGVzY3JpcHRpb24iOiJBY2Nlc3MgdG8gcHJlbWl1
Show more
crates/runx-contracts/examples/runx-x402-fixtures.rs, line 17
const OFFICIAL_RESPONSE_HEADER: &str = "eyJzdWNjZXNzIjp0cnVlLCJ0cmFuc2FjdGlvbiI6IjB4MTIzNDU2Nzg5MGFiY2RlZjEyMzQ1Njc4OTBhYmNkZWYxMjM0NTY3ODkwYWJjZGVmMTIzNDU2Nzg5MGFiY2RlZiIsIm5ldHdv
crates/runx-receipts/src/notary.rs, line 1
//! A hosted notary's counter-seal over a receipt's public projection.
fixtures/contracts/canonical-json/runx-stable-json-v1.cases.json, line 1
{"canonicalization":"runx.stable-json.v1","cases":[{"expected_canonical_json":"[]","expected_sha256":"sha256:4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945","expe
fixtures/contracts/principal-id/principal-id-v1.vectors.json, line 1
{"cases":[{"expectation":"valid","input":"user_1","name":"simple-user","reference":{"type":"principal","uri":"runx:principal:user_1"}},{"expectation":"valid","input":"edge-key:sha2
fixtures/contracts/x402-v2/official-payment-payload.json, line 1
{"expectation":"valid","header":"eyJ4NDAyVmVyc2lvbiI6MiwicmVzb3VyY2UiOnsidXJsIjoiaHR0cHM6Ly9hcGkuZXhhbXBsZS5jb20vcHJlbWl1bS1kYXRhIiwiZGVzY3JpcHRpb24iOiJBY2Nlc3MgdG8gcHJlbWl1bSBtYXJ
fixtures/contracts/x402-v2/official-payment-required.json, line 1
{"expectation":"valid","header":"eyJ4NDAyVmVyc2lvbiI6MiwiZXJyb3IiOiJQQVlNRU5ULVNJR05BVFVSRSBoZWFkZXIgaXMgcmVxdWlyZWQiLCJyZXNvdXJjZSI6eyJ1cmwiOiJodHRwczovL2FwaS5leGFtcGxlLmNvbS9wcmV
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 eedbf68677a0. requests shell access. No manifest field names shell or command execution. can reach a host that is not written as a fixed address. can reach api.github.com. The description does not name that host. reads a credential or environment file. contains an encoded blob in a file that should be readable. contains a minified payload.
Date and source
Date checked:
github.com
Commit graded: eedbf68677a0e0f93c6024f82b01eda87869afe8
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.