vessel-browser (unmodeled-tyler/vessel-browser) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.
Built from the ground-up for agents, Vessel Browser is an open source AI browser for Linux/Mac/Windows that provides a durable state, MCP control, and BYOK with full autonomous browsing. Use with Hermes Agent, OpenClaw, or connect to your favorite API provider.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
How we verified
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unmodeled-tyler
Source: github_topic
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Install from
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BUILD_STORE_MSIXVESSEL_AIR_GAPPEDVESSEL_CONFIG_DIRVESSEL_DEBUGVESSEL_DEBUG_AGENT_LOOPVESSEL_DEBUG_MCPVESSEL_DEBUG_SCHEDULERVESSEL_MCP_URLVESSEL_PREMIUM_APIWINDOWS_REQUIRE_CODE_SIGNINGWINDOWS_TRUSTED_SIGNING_ACCOUNT_NAMEWINDOWS_TRUSTED_SIGNING_CERTIFICATE_PROFILE_NAMEWINDOWS_TRUSTED_SIGNING_ENDPOINTWINDOWS_TRUSTED_SIGNING_PUBLISHER_NAMEXDG_CONFIG_HOMETool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
96/96 tools missing one or more hints — vessel_devtools_console_logs (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); vessel_devtools_console_clear (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); vessel_devtools_network_log (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +93 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool inputs are validated
77/96 tool handlers declare input schemas (80%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
Only 24/96 tool handlers wrap calls in try/catch (25%)
Wrap each tool handler body in try/catch and return a structured error response.
Tool test coverage
Only 20/96 tools referenced in tests (21%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
1 child_process call — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Domain consistency
npm scope @quanta-intellect doesn't match GitHub owner unmodeled-tyler
Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.
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