Skills/Docker MCP Catalog/render

render@r9

CAUTION· install only

Publisher claims: "Interact with your Render resources via LLMs." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry Docker MCP CatalogPublisher render-oss · publishing for 129 daysInstalls 16,927Last detonated 3d ago
What would fix thisWatchDispute verdict

Coverage

Nothing executable in the bundle ran; the trace covers the install step only.
Tested
every file read, file written and host contacted by what ran
Not tested
use of the skill by an agent

What this means for the label: Caution here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
OPENAI_VERIFICATION_TOKENRENDER_API_KEYConfiguration, not credentials: REDIS_URL, RENDER_HOST
Where it talks to
render.com (its own)Also githubusercontent.com, mcp.ex — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
use of the skill by an agent

Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names githubusercontent.com, mcp.ex as well as its own vendor. The guard injects OPENAI_VERIFICATION_TOKEN, RENDER_API_KEY only into requests to render.com (and its subdomains) and refuses the rest.

$vet-skills run --secrets OPENAI_VERIFICATION_TOKEN=render.com,RENDER_API_KEY=render.com -- docker run -i --rm mcp/render

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is render@r9 safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario; nothing executable in the bundle ran; the trace covers the install step only) on 2026-11-11 and scored it 74/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Direct script execution from GitHub raw URL; Pipe-to-shell pattern. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 1 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.0sprocessscript backend runs setup only
0.0sprocessscript backend runs setup only
0.0sprocessno install scripts to re-run

Static findings

MEDIUM
File permission modification commandbin/install.sh:86 · File permission modification command — agent changes file ownership/permissionschmod +x "${INSTALL_DIR}/render-mcp-server"Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05
MEDIUM
MCP server using network transport (SSE/HTTP)cmd/server.go:124 · MCP server using network transport (SSE/HTTP) — data sent over networkfunc newStreamableHTTPServer(apiClient *client.ClientWithResponses, sessionStore session.Store) (*server.MCPServer, *server.StreamableHTTPServer) {Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
MCP server using network transport (SSE/HTTP)pkg/client/client.go:14 · MCP server using network transport (SSE/HTTP) — data sent over network"github.com/render-oss/render-mcp-server/pkg/httpcontext"Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
HIGH
Direct script execution from GitHub raw URLbin/install.sh:4 · Direct script execution from GitHub raw URL — unverified code source# curl -fsSL https://raw.githubusercontent.com/render-oss/render-mcp-server/refs/heads/main/bin/install.sh | shFix: Pin versions and sources; vendor anything fetched at install time.
AST06
CRITICAL
Pipe-to-shell patternbin/install.sh:4 · Pipe-to-shell pattern — downloads and immediately executes remote code# curl -fsSL https://raw.githubusercontent.com/render-oss/render-mcp-server/refs/heads/main/bin/install.sh | shFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06
MEDIUM
MCP server using network transport (SSE/HTTP)cmd/server.go:24 · MCP server using network transport (SSE/HTTP) — data sent over network"github.com/render-oss/render-mcp-server/pkg/httpcontext"Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
MCP server using network transport (SSE/HTTP)cmd/httpcontext_test.go:52 · MCP server using network transport (SSE/HTTP) — data sent over networkmcpServer, httpTransport := newStreamableHTTPServer(apiClient, session.NewInMemoryStore())Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
MCP server using network transport (SSE/HTTP)cmd/server.go:146 · MCP server using network transport (SSE/HTTP) — data sent over networkreturn mcpServer, httpTransportFix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
File permission modification commandpkg/config/config.go:168 · File permission modification command — agent changes file ownership/permissions// Ignore the error if we can't chmod try to continueFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05
MEDIUM
File permission modification commandpkg/config/config.go:199 · File permission modification command — agent changes file ownership/permissions// Ignore the error if we can't chmod try to continueFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05
MEDIUM
Remote installer piped to shellbin/install.sh:4 · Remote installer piped to shell# curl -fsSL https://raw.githubusercontent.com/render-oss/render-mcp-server/refs/heads/main/bin/install.sh | shFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07
MEDIUM
MCP server using network transport (SSE/HTTP)cmd/server_test.go:96 · MCP server using network transport (SSE/HTTP) — data sent over networkmcpServer, httpTransport := newStreamableHTTPServer(apiClient, session.NewInMemoryStore())Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
MCP server using network transport (SSE/HTTP)cmd/httpcontext_test.go:11 · MCP server using network transport (SSE/HTTP) — data sent over network"github.com/render-oss/render-mcp-server/pkg/httpcontext"Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
MCP server using network transport (SSE/HTTP)cmd/server.go:64 · MCP server using network transport (SSE/HTTP) — data sent over networkmcpServer, httpTransport := newStreamableHTTPServer(apiClient, sessionStore)Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04

Cost to the agent

Instructions loaded
≈34 tok
1 file · 81 in bundle

Tokens estimated at four characters each. Skills load their instruction text when triggered; the figure is what that costs.

Known vulnerabilities

Vulnerability advisories (OSV) cover npm and PyPI packages; this registry has no advisory database.

What would make this Verified

6 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%
  1. Pipe-to-shell pattern≈ +9 on the totalBuild commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
  2. Unclaimed publisher≈ +8 on the totalClaim render-oss: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
  3. Direct script execution from GitHub raw URL≈ +4 on the totalPin versions and sources; vendor anything fetched at install time.
  4. File permission modification command≈ +2 on the totalRequest the narrowest permission that works; replace wildcards with the exact paths or hosts.
  5. MCP server using network transport (SSE/HTTP)≈ +2 on the totalNamespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
  6. Remote installer piped to shell≈ +2 on the totalBuild commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
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