olgasafonova/productplan-mcp-server

v4.4.0 Feature

This release adds 3 notable features for engineering teams evaluating rollout.

Published 5mo MCP Developer Tools

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✓ No known CVEs patched

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✓ No known CVEs patched in this version

Topics

anthropic claude go mcp mcp-server model-context-protocol

+4 more

okr product-management productplan roadmap

Summary

AI summary

Added adaptive rate limiter, in‑memory cache with LRU eviction, structured API errors with helper methods, and a health check tool.

Full changelog

What's New

Production-hardening features integrated from learnings across Miro and MediaWiki MCP servers.

Rate Limiting

Adaptive rate limiter parses X-RateLimit-* headers from ProductPlan API
Proactively slows down at 20% remaining quota
Prevents 429 errors before they happen

Caching

TTL-based in-memory cache for read operations
LRU eviction when cache is full (1000 entries default)
Prefix-based invalidation for related data

Structured Errors

APIError type with helper methods:
- IsRateLimited(), IsNotFound(), IsRetryable()
- Suggestion() returns actionable guidance for LLM
Parses JSON error responses from API

Health Check Tool

New health_check tool for diagnostics
Shallow mode: rate limit and cache status
Deep mode: also verifies ProductPlan API connectivity

Input Validation

Helper functions for common validations
Clear error messages for invalid inputs

CI/CD

GitHub Actions workflow with test, lint, build jobs
Multi-platform builds (darwin, linux, windows; amd64, arm64)
golangci-lint configuration

Code Organization

New productplan/ package with:
- errors.go - Structured API errors
- validation.go - Input validation helpers
- ratelimit.go - Adaptive rate limiting
- cache.go - TTL-based caching
- health.go - Health checking
Comprehensive test coverage

Full Changelog: https://github.com/olgasafonova/productplan-mcp-server/compare/v4.3.0...v4.4.0

View diff on GitHub

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