todo.txt-mcp@3.5.0
VERIFIED· startup onlyPublisher claims: "Model Context Protocol server for managing a todo.txt file" Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Coverage
Startup only; authenticated tool behavior not tested.- Tested
- server startup over stdio (initialize sent) · every file read, file written and host contacted by what ran
- Not tested
- the tool list (the server exited before answering) · what the tools do when called with real credentials
- Needs
- MCP_AUTH_TOKEN — give it to the server where it runs, through vet-skills run --secrets, so the value never enters the server's environment. Never paste a credential into a chat, a ticket or a report.
What this means for the label: Verified 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
MCP_ALLOW_WEAK_TOKENMCP_AUTH_TOKENMCP_AUTH_TOKEN_FILEMCP_AUTH_TOKENSMCP_METRICS_TOKENMIN_TOKEN_LENGTHRECOMMENDED_BASE64URL_TOKEN_LENGTHRECOMMENDED_HEX_TOKEN_LENGTHConfiguration, not credentials: MCP_ALLOWED_HOSTS, MCP_ALLOWED_ORIGINS, MCP_LOG_LEVEL, MCP_METRICS_ENABLED, MCP_METRICS_RATE_LIMIT_PER_MIN, MCP_READ_ONLY, MCP_READYZ_RATE_LIMIT_PER_MIN, MCP_TRANSPORT, TODOTXT_MCP_MAX_FILE_BYTES, TODOTXT_MCP_MAX_LINE_CHARS, TODOTXT_MCP_MAX_READ_TODOS, TODOTXT_MCP_MAX_TODOS, TRUST_PROXY- Where it talks to
- no vendor host named in the code
- What the honeypot saw
- no credential files read · no network
- What we could not test
- the tool list (the server exited before answering) · what the tools do when called with real credentials
Connect it with a scoped credential, under the guard. It asks for MCP_ALLOW_WEAK_TOKEN, MCP_AUTH_TOKEN, MCP_AUTH_TOKEN_FILE, MCP_AUTH_TOKENS, MCP_METRICS_TOKEN, MIN_TOKEN_LENGTH, RECOMMENDED_BASE64URL_TOKEN_LENGTH, RECOMMENDED_HEX_TOKEN_LENGTH and talks to its vendor. Give the credential to the guard, not the server: the value never enters the server's environment and only travels to the host you bind. What the tools do with a real credential was not observed.
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; startup only; authenticated tool behavior not tested) on 2026-11-14 and scored it 82/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed (it asks for MCP_AUTH_TOKEN); the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.
Behavior trace
Honeypot run · 54 s · 2 scenarios · 0 deviationsStatic findings
// chmod afterwards to keep the exact bits of the replaced file.Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.# This script only copies todo.txt. It never reads or writes tokens, .env, orFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.chmod 600 "$DEST"Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.`(mode ${octal}). Restrict it with "chmod 600" so only the server user ` +Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.// after `kill -9`, once the process has been reaped) can be reclaimedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.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 @arnoarnoarno/todo.txt-mcp@3.5.0 as of 13 h ago. This is the package itself, not its dependencies.