Bruno MCP Studio (Ostico/bruno-mcp-studio) 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.
Enables AI agents to create, edit, read, and run Bruno API collections (both .bru and .yml formats) with byte-parity to Bruno's own reader, without requiring the Bruno CLI.
Caution. Specific findings reduced this grade. They are listed on the page. 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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⚡ Connect GitHub → continuous verification on every pushwhy connect →Who stands behind it
Ostico
Source: Glama
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Install from
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BRUNO_DNS_TIMEOUT_MSDNS resolution timeoutBRUNO_INSECURE_TLS_HOSTSHosts allowed to skip certificate verificationBRUNO_PROXY_HOSTSHosts allowed to use a collection's proxyBRUNO_SSRF_ALLOWLISTComma-separated exact hostnames, IP literals and/or CIDR ranges allowed despite being private. Read once at startup and never influenced by tool arguments; wildcards are rejectedBRUNO_UPLOAD_DIRSExtra directories uploads may read fromBRUNO_WORKSPACE_PATHWhere to find Bruno's workspace.ymlTool 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
18/18 tools missing one or more hints — create_collection (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_collections (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_collection_stats (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +15 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.
Destructive tools are labelled
1 tool perform destructive updates without destructiveHint — delete_request deletes at line 302 (unlink(args.filePath))
Add destructiveHint:true to any tool whose handler calls .delete(), .upsert(), .update(), unlink, rm, DELETE, DROP, REPLACE INTO, or any operation that overwrites existing data.
Shell command execution
3 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
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[](https://m8ven.ai/mcp/ostico-bruno-mcp-studio-1s8l4a)?variant=verified from the URL.Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.
https://m8ven.ai/api/mcp/tool-check