mu-ebook-scout (muippt/mu-ebook-scout) is an MCP server listed on the M8ven Trust Index. It scores 70 out of 100, grade C. It declares 2 tools. No publisher has claimed this listing.
📚电子书下载器|Multi-source search tool for public-domain and open-license ebooks (Chinese/English) — CLI + MCP server + Agent Skill shell
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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muippt
Source: github_repo_search
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Install from
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.
BOOKSCOUT_GITHUB_TOKEN3. export GITHUB_TOKEN=github_pat_xxxx (or , which takes precedence)GITHUB_TOKEN3. export =github_pat_xxxx (or BOOKSCOUT_GITHUB_TOKEN, which takes precedence)BOOKSCOUT_GOOGLE_BOOKS_KEY4. export =AIza...Tool 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
2/2 tools missing one or more hints — search (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). 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 — get deletes at line 189 (dest.unlink(missing_ok=True))
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.
Descriptions match behaviour
1 tool describes read intent but its handler mutates — get (line 189: dest.unlink(missing_ok=True))
Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.
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[](https://m8ven.ai/mcp/muippt/mu-ebook-scout)?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.
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