nodriver-mcp-server

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

57/57 tools missing one or more hints — bypass_insecure_warning (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); cf_verify (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); click (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +54 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

1 tool perform destructive updates without destructiveHint — delete_profile deletes at line 4244 (shutil.rmtree(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.

Descriptions match behaviour

3 tools describe read intent but their handlers mutate — get_network_request (line 1896: with open(request_file_path, "w", encoding="utf-8") as f:); take_snapshot (line 3087: with open(file_path, "w", encoding="utf-8") as f:); get_page_content (line 3519: with open(file_path, "w", encoding="utf-8") as f:)

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

Tool inputs are validated

45/57 tool handlers declare input schemas (79%)

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

Tool handlers catch errors

Only 22/57 tool handlers wrap calls in try/catch (39%)

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_snapshot: description implies read-only but handler writes/deletes/executes; get_page_content: description implies read-only but handler writes/deletes/executes

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