mcp_book_source (weniv/mcp_book_source) is an MCP server listed on the M8ven Trust Index. It scores 52 out of 100, grade D. It declares 94 tools. No publisher has claimed this listing.

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

Code Verified⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

weniv

Source: github_code

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

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.

// key findings
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
// tools this server exposes20 tools

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.

add

Add two numbers

create_folder

Creates a folder under c:/test/

delete_folder

Deletes a folder under c:/test/

list_folders

Returns the list of folders under c:/test/

write_file

Creates a file under c:/test/ and writes content to it.

read_file

Reads the content of a file under c:/test/

append_to_file

Appends content to a file under c:/test/

list_files

Returns the list of files under c:/test/

read_excel

c:/test/ 아래의 엑셀 파일을 읽어 데이터를 리스트로 반환합니다.

write_excel

리스트를 엑셀 파일로 저장합니다.

create_excel_with_formatting

리스트를 서식이 지정된 엑셀 파일로 저장합니다.

append_to_excel

기존 엑셀 파일에 새로운 데이터를 추가합니다.

crawl_url_return_book_name

Receives a URL and crawls it to return book titles. Each data item is connected by a comma. Therefore, when showing to the user, please display with line breaks instead of commas.

get_upcoming_schedule

Return the upcoming 10 events

add_vacation_schedule

Register vacation schedule in Google Calendar. - title: Schedule title (e.g. 'Vacation') - start_date, end_date: 'YYYY-MM-DD' format

read_hwp

한글 문서(.hwp)를 읽어 텍스트로 반환합니다.

write_md_to_hwpx

마크다운 문자열을 .hwpx 파일로 변환합니다. 간단한 구조로, 책 예제용 기본 기능만 제공합니다. gen.py 파일이 같은 폴더에 함께 있어야 합니다.

echo

A tool that returns the input message as is.

create_thumbnail

Create a thumbnail from an image

greeting

Get a greeting using the greeting resource

// quality suggestions

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

94/94 tools missing one or more hints — add (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); create_folder (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); delete_folder (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +91 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

9 tools perform destructive updates without destructiveHint — delete_folder deletes at line 51 (os.rmdir(folder_path)); delete_folder deletes at line 51 (os.rmdir(folder_path)); delete_folder deletes at line 51 (os.rmdir(folder_path))

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.

Tool inputs are validated

74/94 tool handlers declare input schemas (79%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tool handlers catch errors

50/94 tool handlers wrap calls in try/catch (53%)

Wrap each tool handler body in try/catch and return a structured error response.

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Tests exist

No test files found

Add tests that exercise each declared tool.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 7 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Verified](https://m8ven.ai/badge/mcp/weniv/mcp_book_source?variant=verified)](https://m8ven.ai/mcp/weniv/mcp_book_source)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: 99dd9b75e8185f3a8b3d3bb81e5fb0e47e4c49c2
code hash: bbec8b370172828ee0d44716184f77e3f4dd610af510eb8397effec88ad1f790
view raw JSON →
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