Harnios MCP (harnios/harnios-mcp) is an MCP server listed on the M8ven Trust Index. It scores 56 out of 100, grade D. It declares 21 tools. No publisher has claimed this listing.
Harnios is a self-hosted, MCP-based storage system that gives every AI assistant you use — Claude, ChatGPT, Cursor, or anything else — a shared, persistent memory of your business: knowledge base, skills, projects, operational tables, and reports, all in one place. Connect a new tool once, and it reads and writes through the same store instead of starting from zero.
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.
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harnios
Source: Glama · also listed on github_repo_search
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The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
create_fileread_filedelete_filecreate_directorylist_directorydelete_directoryupdate_filemoveget_docsget_os_engineget_os_upgradeget_os_initget_change_processget_inboxrun_jobRuns a registered workflow stored under os/jobs in the workspace. Supply its jobId and declared arguments only. The job can access only its manifest-authorized files and returns output metadata plus an aggregate summary, never file contents.
send_emailsend_telegram_messagerun_pythonlist_directory_treefind_files_by_namesearch_file_contentDisclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Next.js: Unauthenticated Remote Code Execution in Image Optimization API when AVIF files are used
Next.js: Unauthenticated Remote Code Execution on windows-hosted servers
Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale
Next.js: Server-Side Request Forgery in Server Actions on custom servers
Next.js: Denial of Service in App Router using Server Actions
MCP_BOOTSTRAP_PATHMESSAGING_RATE_LIMIT_MAXMESSAGING_RATE_LIMIT_WINDOW_MINUTESMISTRAL_API_KEYMISTRAL_MODELOAUTH_OWNER_PASSWORDOAUTH_OWNER_USERNAMEOS_NAMES3_ACCESS_KEY_IDS3_BUCKETS3_ENDPOINTS3_FORCE_PATH_STYLES3_REGIONS3_SECRET_ACCESS_KEYSCHEDULER_ENABLEDSCHEDULER_TIMEZONETELEGRAM_BOT_TOKENTELEGRAM_CHAT_IDSMTP_FROMSMTP_HOSTSMTP_PASSWORDSMTP_PORTSMTP_SECURESMTP_USERTool 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
21/21 tools missing one or more hints — create_file (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); read_file (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); delete_file (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +18 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 test coverage
Only 2/21 tools referenced in tests (10%)
Write tests that reference each tool by name so every tool has at least one test.
Production dependencies are patched
2 critical, 5 high severity in production deps — next@16.2.10 (critical), next@16.2.10 (critical)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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