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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vijaynaikd
Source: mcp.so
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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.
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.
get_tasksRetrieve all tasks from the Google Sheet.
create_taskAdd a new task to the Google Sheet.
update_taskUpdate an existing task's due date and/or status in the Google Sheet.
search_papersSearch for papers on arXiv based on a topic and store their information. Args: topic: The topic to search for max_results: Maximum number of results to retrieve (default: 5) Returns: List of paper IDs found in the search
extract_infoSearch for information about a specific paper across all topic directories. Args: paper_id: The ID of the paper to look for Returns: JSON string with paper information if found, error message if not found
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
8/8 tools missing one or more hints — get_tasks (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); create_task (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); update_task (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +5 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.
Descriptions match behaviour
1 tool describes read intent but its handler mutates — search_papers (line 184: with open(file_path, "w") as json_file:)
Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.
Tool inputs are validated
6/8 tool handlers declare input schemas (75%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
6/8 tool handlers wrap calls in try/catch (75%)
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.
Tool description accuracy
search_papers: description implies read-only but handler writes/deletes/executes
Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.
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