Loading ToolBench
MCP Server for Byzantine Fault Tolerant Quorum Voting Skill - Pure Python Standard Library implementation of Practical Byzantine Fault Tolerance (PBFT) style consensus. Guarantees safety and liveness across an agent swarm tolerating up to f faulty or adversarial nodes (N >= 3f + 1).
Single tool 'validate_quorum' has a reasonable description (194 chars) but critical schema deficiencies. Input schema present but lacks proper type constraints and descriptions for all parameters. Parameter 'payload' is typed as 'object' with no structure specification, making it ambiguous for LLM invocation. No output schema documented, LLM cannot predict response structure. Tool name lacks action verb prefix (should be 'execute_quorum_consensus' or 'validate_pbft_consensus'). No error handling guidance; generic exception catch returns bare error strings. No parameter validation, no enum constraints, no range limits. Composition is monolithic, consensus execution, node simulation, and result aggregation bundled into one tool.
Executes Byzantine Fault Tolerant consensus on a PBFT cluster with configurable node count and byzantine fault tolerance. Returns consensus result including view, sequence, digest, quorum size, participating nodes, byzantine nodes count, consensus achievement status, and committed node count.
Tool name lacks action verb. 'validate_quorum' is passive; should start with verb like 'execute_', 'run_', or 'simulate_' to signal intent to LLM.
Input schema lacks type constraints and parameter descriptions. 'payload' parameter is untyped object with no structure spec; 'nodes' and 'byzantine_faults' lack min/max bounds or validation rules. LLM cannot infer valid ranges or payload structure.
No output schema documented. Response fields (view, sequence, digest, quorum_size, etc.) are not formally specified. LLM cannot plan downstream operations or extract required fields reliably.
Error handling returns bare exception strings ('error': str(e)). No recovery guidance, no error classification (retryable vs fatal), no actionable next steps for LLM.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-23 | F | 37 | 2026-07-28+ | v2 |
No input validation. Tool accepts arbitrary node counts and byzantine fault counts without enforcing PBFT invariant N >= 3f+1 at the tool boundary. Assertion in PBFTCluster.__init__ will crash; LLM receives no guidance on valid parameter combinations.