HiveMind demonstrates solid tool design with clear naming conventions and comprehensive input schemas for all 7 tools. All tools start with action verbs (add_, search_, list_, delete_, publish_, manage_, report_) and follow verb_noun patterns. Input schemas are fully documented with proper typing. However, descriptions vary significantly in quality and length, some are detailed (manage_roles at ~280 chars), others are terse (list_knowledge at ~90 chars, delete_knowledge at ~65 chars). Parameter descriptions are present but inconsistent in depth. Output schemas are not documented in the visible source code, which is a significant gap for agent composition. Error handling is mentioned (errorReporting=true) but specific recovery guidance is not visible in the source. Tool composition is generally sound with minimal overlap, though some parameter relationships (e.g., in manage_roles, the conditional behavior of 'obj' and 'permission' parameters based on 'action') could be more explicit.
Tools (7)
add_knowledgewriteauth50/100
Add knowledge to the HiveMind commons with PII detection and anonymization
delete_knowledgereversibleauth50/100
Soft-delete a knowledge item from the HiveMind commons
list_knowledgeread onlyauth50/100
List knowledge items from the HiveMind commons with filtering and pagination
manage_roleswriteauthsource verified79/100
Manage agent roles and access policies within an organization namespace. Organization admins can assign roles, query role assignments, and manage fine-grained access policies at the namespace, category, or item level.
publish_knowledgewriteauth50/100
Publish a knowledge item to the public commons, making it visible across organizations
report_outcomewriteauth50/100
Report quality signals and outcomes for knowledge items to improve collaborative intelligence
search_knowledgeread onlyauth50/100
Search the HiveMind knowledge commons using semantic similarity and filtering
Enum constraints missing for constrained-input parameters. 'action' in manage_roles and 'signal_type' in report_outcome are documented as free-form strings but should be enums to prevent hallucinated values.
Terse descriptions for list_knowledge (~65 chars) and delete_knowledge (~45 chars) fall below optimal range (100-200 chars). Insufficient context for LLM tool selection.
list_knowledgedelete_knowledge
HIGH
Recommendations
Add enum constraint to manage_roles 'action' parameter: {enum: ['assign_role', 'get_roles', 'add_permission', 'remove_permission']}. Update parameter description to be explicit: 'Action to perform. assign_role: assign role to agent. get_roles: list roles for agent. add_permission/remove_permission: manage access policies.'
Convert report_outcome 'signal_type' to enum: {enum: ['retrieval', 'outcome_solved', 'outcome_not_helpful', 'contradiction']}. Add description: 'Type of quality signal. retrieval: returned in search. outcome_solved: knowledge helped resolve issue. outcome_not_helpful: user found it irrelevant. contradiction: conflicts with other knowledge.'
Document output schemas for all tools in tool registration or in a structured comment. Minimum fields: add_knowledge → {item_id, created_at, category, confidence}; search_knowledge → {results: [{item_id, content, confidence, category}], total_count}; list_knowledge → {items: [{item_id, category, confidence}], total_count}; delete_knowledge → {success, item_id}; publish_knowledge → {success, item_id, visibility}; manage_roles → response depends on action (enum result); report_outcome → {success, item_id, signal_type}.
Expand terse descriptions to 100-200 chars: delete_knowledge from 'Soft-delete a knowledge item from the HiveMind commons' to 'Soft-delete a knowledge item from the HiveMind commons. The item is marked as deleted but remains recoverable. Returns success status and item_id.'; list_knowledge from 'List knowledge items from the HiveMind commons with filtering and pagination' to 'List all knowledge items in the HiveMind commons. Supports filtering by category and pagination via limit/offset. Returns paginated results with total count for discovery and browsing.'
No recovery guidance in error cases. delete_knowledge, publish_knowledge, and manage_roles are state-modifying but lack error messages explaining what to do if validation fails (e.g., item not found, permission denied).
Conditional parameter relationships underdocumented. manage_roles 'obj' format and 'permission' applicability depend on 'action' value but parameter descriptions don't explicitly state these dependencies, risking misuse.
Pagination and result limits not explicit. search_knowledge and list_knowledge accept 'limit' but lack documented defaults and maximum caps. No guidance on expected result counts or when pagination is required.
No idempotency hints or confirmation patterns for destructive tools. delete_knowledge and publish_knowledge (marked REVERSIBLE/WRITE) lack idempotent hints or dry-run documentation, risking accidental repeats.
delete_knowledgepublish_knowledge
Add explicit pagination guidance to search_knowledge and list_knowledge descriptions: 'Accepts limit (default 20, max 100) and offset (default 0). Returns total_count to enable pagination.'
For destructive operations (delete_knowledge, publish_knowledge), add error recovery guidance in tool description: 'Errors: item_id not found → try search_knowledge or list_knowledge to locate; permission_denied → ensure you have write access via manage_roles.'
Document manage_roles conditional parameters in schema: add 'conditionalParameters' or update parameter descriptions to state: 'obj: Required for add_permission/remove_permission. Format: namespace:<org_id> | category:<cat> | item:<uuid>. Unused for assign_role/get_roles. permission: Required for add_permission/remove_permission (read|write|*). Unused for assign_role/get_roles.'
Add result limits and defaults to list_knowledge and search_knowledge: 'limit: Maximum results (1-100, default 20).' This aligns with production baseline of 20-50 items per result set.
For manage_roles, clarify idempotency: 'assign_role is idempotent, calling twice with same agent/role succeeds both times. Useful for tool retry safety.'
Add tool annotations (toolAnnotations=true) when registering with fastmcp: mark delete_knowledge and publish_knowledge with destructiveHint=true; mark add_knowledge and publish_knowledge with appropriate write hints; mark search/list with readOnlyHint=true to guide agent planning.