MCP

Challenges

Automated validators — because "it worked in the demo" is not a test strategy. Run npm run challenge -- <slug> from the repo root. Pass them. You're welcome.

Add JSON Schema Validation

Ensure invalid types are rejected at validation boundary.

Add Audit Logs

Emit structured audit lines to stderr for each tool call.

Calculator MCP Tool

Implement an add tool with numeric schema and passing validation.

Capstone: Secure Internal Developer Assistant

Ship resources, prompts, guarded writes, audit logging.

Debug Broken Capability Negotiation

Fix server info/version fields so client initialize succeeds.

Enterprise MCP Governance Checklist

Author a markdown governance checklist with required headings.

Human Approval Before Writes

Write tool requires explicit approval token in args.

Multi-Server Agent Workflow

Expose planner and executor tools with distinct prefixes.

PR Review Prompt Template

Register a parameterized prompt for PR review.

Prevent Path Traversal

Reject ../ and absolute paths outside allowlist.

Add Structured Errors

Return MCP tool errors with clear codes for invalid input.

Convert Unsafe File Access to Read-only Resource

Expose safe read-only resource instead of arbitrary path tool.