An agent using MCP tools to manage GitHub repository settings is repeatedly calling the 'update_branch_protection' tool with missing required parameters, causing tool errors on every run. Logs confirm the agent always has the correct branch name available in context. Which tool configuration refinement will most directly fix this recurring tool misuse?
Select an answer to reveal the explanation.
Short Explanation and Infographic
When an agent keeps calling a tool with the wrong parameters, the tool isn't broken — the agent's understanding of the contract is broken. Improving the JSON schema description is like upgrading the instruction manual: once the agent can clearly see every required parameter, its type, and an example, it will construct the call correctly without you removing or replacing the tool.
Full explanation below image
Full Explanation
Repeated tool misuse with missing required parameters typically signals a tool description problem rather than a model reasoning problem. The agent has the information it needs (the branch name is available in context) but consistently fails to construct a complete, valid tool call. This pattern points to an underspecified tool schema.
Option B is correct because the JSON schema description is the primary interface through which an agent understands how to call a tool. If required parameters are not clearly named, their types are ambiguous, or no examples are provided, the agent is likely to omit them or pass incorrect values. Improving the schema by enumerating required fields, specifying types (e.g., 'string', 'boolean', 'array of strings'), and adding example values directly addresses the agent's incorrect call construction.
Option A (remove the tool) eliminates the capability the agent needs to complete its task. This is not a fix — it is abandoning the feature. Removing a tool should only happen when the tool is genuinely inappropriate for the agent's role.
Option C (add a retry loop) will cause the agent to repeat the same broken call up to three times. If the call is missing required parameters, retrying it without changing anything will produce the same error each time. Retries help with transient failures, not consistent structural errors.
Option D (switch MCP servers) is a heavy-handed workaround that introduces migration risk and may introduce new tool mismatches. The correct fix is to improve the tool description on the existing server, which is a lightweight, targeted change.