computer-control-mcp-lands

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

10/10 tools missing one or more hints — tool_version (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); click_screen (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_screen_size (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +7 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 — take_screenshot (line 810: shutil.copy(filepath, get_downloads_dir()))

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

Tool inputs are validated

7/10 tool handlers declare input schemas (70%)

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

Tool handlers catch errors

9/10 tool handlers wrap calls in try/catch (90%)

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

Tests exist

No test files found

Add tests that exercise each declared tool.

Tool description accuracy

take_screenshot: description implies read-only but handler writes/deletes/executes

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