npm-mcp

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

38/38 tools missing one or more hints — publish (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); version (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); view (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +35 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

14 tools describe read intent but their handlers mutate — view (line 37: exec(NPM, fullArgs, opts)); search (line 37: exec(NPM, fullArgs, opts)); outdated (line 37: exec(NPM, fullArgs, opts))

Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.

Tests exist

No test files found

Add tests that exercise each declared tool.

Shell command execution

1 call in production code run through a shell (src/index.ts:37)

Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.

Tool description accuracy

14 tools have description/behavior mismatches: view: description implies read-only but handler writes/deletes/executes; search: description implies read-only but handler writes/deletes/executes; outdated: description implies read-only but handler writes/deletes/executes

Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.