neo-mcp@0.5.16
CAUTION· not startedPublisher claims: "Neo MCP server — bring Neo, the autonomous AI engineer for ML, LLM, GenAI & data workflows, into Claude Code, Cursor, Codex & other editors. Describe a task; Neo builds it and writes results to your repo." Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Coverage
Not started: dependency install failed; the server itself was not observed.- Tested
- the dependency install step · every file read, file written and host contacted by what ran
- Not tested
- server startup · the tool list · tool behavior
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
NEO_AUTH_URLNEO_SECRET_KEYConfiguration, not credentials: NEO_API_URL, NEO_BYOK_KEY, NEO_BYOK_MODEL, NEO_BYOK_PROVIDER, NEO_COMMAND_STATE_MAX, NEO_DEPLOYMENT_ID, NEO_DEPLOYMENT_ID_MODE, NEO_ENV, NEO_ENVIRONMENT, NEO_HEALTH_PORT, NEO_HOME, NEO_INIT_CHAT_TIMEOUT_SECONDS, NEO_INTEGRATIONS_BACKEND, NEO_JOB_MAX_LOG_BYTES, NEO_JOB_MAX_RUNTIME_SECONDS, NEO_POLL_DRAIN_EMPTY, NEO_POLL_PARK_TICK, NEO_POLL_STATUS_CHECK_AFTER, NEO_POLLER_READY_TIMEOUT_SECONDS, NEO_PUBLIC_URL, NEO_READ_ONLY, NEO_RELAY_URL, NEO_THREAD_STATUSES_MAX, NEO_THREAD_WORKSPACES_MAX, NEO_THREAD_WORKSPACES_TTL_SECONDS, NEO_TRACE_ROUTING, NEO_WORKSPACE_DIR, NEO_WORKSPACE_REGISTRATION_WAIT_SECONDS- Where it talks to
- no vendor host named in the codeAlso heyneo.com, openrouter.ai, heyneo.so, huggingface.co, kaggle.com, amazonaws.com, wandb.ai — 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
- server startup · the tool list · tool behavior
Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names heyneo.com, openrouter.ai, heyneo.so, huggingface.co, kaggle.com, amazonaws.com, wandb.ai as well as its own vendor. The guard injects NEO_AUTH_URL, NEO_SECRET_KEY only into requests to the host you bind (and its subdomains) and refuses the rest.
Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.
Is [email protected] safe to install?
KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-13 and scored it 68/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Access to sensitive file paths; Access to sensitive file paths; Access to sensitive file paths. Summary: no network, touches nothing outside the project, writes no memory.
Behavior trace
Honeypot run · 0 s · 2 scenarios · 0 deviationsStatic findings
"""Insert or replace the [neo] profile in ~/.aws/credentials."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.- anthropic/openrouter: one location (either keyring entry or 0o600 .env)Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.…b_pat_`) to infer the provider when unstated. Do NOT suggest the user create a `.env` file — this tool IS the registration path. | Stored locally only — `~/.neo/int…Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.NETRC_FILE = Path.home() / ".netrc"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."filename": "../../../../etc/passwd",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."""Store one .env file per provider under ``~/.neo/integrations/`` at 0o600."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."""Weights & Biases API key — stored via SecretStore + ~/.netrc."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.On any failure the tempfile is unlinked so we don't leave ``.env.tmp``Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.kept.append(f"https://{username}:{pat}@github.com")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."""AWS S3 credentials — stored via SecretStore + ~/.aws/credentials [neo] profile."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."""Weights & Biases API key — stored via SecretStore + ~/.netrc."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."""Insert or replace the api.wandb.ai block in ~/.netrc."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."""AWS S3 credentials — stored via SecretStore + ~/.aws/credentials [neo] profile."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.(``~/.neo/integrations/byok-<id>.env`` at 0o600, or the OS keyring whenFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."logged, never committed to git (~/.neo/ and .env are in .gitignore). "Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."""Remove the [neo] profile from ~/.aws/credentials. Returns True if removed."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.return self._dir / f"{provider}.env"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."""Insert or replace the [neo] profile in ~/.aws/credentials."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.- ``FileStore`` — one ``~/.neo/integrations/<provider>.env`` file per provider,Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.# key=value .env files with mode 0o600.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."DO NOT instead suggest the user create a .env file, export an "Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."~/.neo/integrations/<provider>.env, mode 0o600) and never sent "Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."""Remove the [neo] profile from ~/.aws/credentials. Returns True if removed."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose."""Insert or replace the api.wandb.ai block in ~/.netrc."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.return subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.result = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.self.assertIn("AKIAIOSFODNN7EXAMPLE", content)Fix: Never read or enumerate credential locations; accept a documented environment variable instead.owner — there is no write-then-chmod window.Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts."https://user:[email protected]\n"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.r = subprocess.run(["claude", "mcp", "remove", "--scope", scope, "neo"],Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.subprocess.Popen(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.subprocess.Popen(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.r = arun(self.h.handle_command(self.cmd(filename="../../evil.sh", code="rm -rf /")))Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.# Plaintext .env file was NOT writtenFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.self.assertFalse(self.allowed("/etc/passwd"))Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.raise RuntimeError("connection refused from https://user:[email protected]")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.return self.td / "integrations" / f"{provider}.env"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.result = subprocess.run(cmd, capture_output=True, text=True, timeout=15)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.# with a hard timeout to kill hung subprocesses.Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.editor cannot suspend or kill it. All stdio is detached to DEVNULL.Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.r = arun(self.h.handle_command(self.cmd(filename="../../evil.sh", code="rm -rf /")))Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.subprocess.run(["loginctl", "enable-linger", user],Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.self.assertNotEqual(Path("/etc/passwd").read_text(), "evil")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.r = arun(self.h.handle_command(self.cmd(file_path="../../etc/passwd")))Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.result = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.subprocess.Popen(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.s3.write_secret({"aws_access_key_id": "AKIAIOSFODNN7EXAMPLE", "aws_secret_access_key": "wJalrXUtn", "region": "eu-west-1"})Fix: Never read or enumerate credential locations; accept a documented environment variable instead.Cost to the agent
Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.
Known vulnerabilities
No advisories in OSV for neo-mcp@0.5.16 as of 34 h ago. This is the package itself, not its dependencies.
What would make this Verified
12 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%- Unclaimed publisher≈ +8 on the totalClaim neoresearchai: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
- Access to sensitive file paths≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
- References a credential file in the home directory≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
- URL with embedded credentials≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
- Python subprocess execution detected≈ +2 on the totalBuild commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
- AWS access key pattern detected≈ +2 on the totalNever read or enumerate credential locations; accept a documented environment variable instead.