NEWS

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mediationverse 0.0.0.9000

Major Changes (2025-12-15)

Selective Loading Strategy (v0.1.0 preparation)

Breaking Change: mediationverse now uses selective loading - only medfit (foundation package) is loaded by default. Other packages must be loaded explicitly.

Why this change?

• Clean namespace with minimal function conflicts
• Users load only packages they need
• Explicit > implicit (better code clarity)
• Coordinated with medfit ecosystem integration

Migration:

# OLD behavior (v0.0.x)
library(mediationverse)  # Loaded all 5 packages

# NEW behavior (v0.1.0+)
library(mediationverse)  # Loads only medfit
library(probmed)         # Load explicitly as needed
library(RMediation)      # Load explicitly as needed

New startup message:

── Attaching mediationverse 0.0.0.9000 ──
✔ medfit 0.1.0 (foundation package)
ℹ Use library(probmed) for P_med effect size
ℹ Use library(RMediation) for DOP/MBCO inference
ℹ Use library(medrobust) for sensitivity analysis
ℹ Use library(medsim) for simulation utilities

Documentation Improvements

• Architecture diagrams: Added comprehensive ecosystem architecture and data flow diagrams to README
• Vignettes updated: All vignettes now demonstrate selective loading pattern
  • getting-started.qmd: Updated with selective loading explanation and examples
  • mediationverse-workflow.qmd: Complete workflow showing explicit package loading
• Testing documentation: Added SELECTIVE-LOADING-TEST.md with comprehensive test results

Implementation

• R/attach.R: Refactored to load only medfit by default
• R/zzz.R: Updated .onAttach() with informative startup message
• All utility functions (mediationverse_packages(), mediationverse_conflicts()) tested and verified

Coordination

• Aligned with medfit COORDINATION-BRAINSTORM.md (Option 2 strategy)
• Ready for medfit v0.1.0 integration (ETA Dec 21, 2025)
• Progress: 85% complete (waiting on medfit stabilization)

Bug Fixes

• Fixed badge URLs in README.md to use correct GitHub organization case (Data-Wise instead of data-wise). Updated workflow badges and ecosystem package table for consistency
• Fixed pkgdown workflow failure caused by version constraint on RMediation in DESCRIPTION. Removed (>= 1.4.0) constraint as it conflicted with pak dependency resolution in CI environments
• Fixed documentation typo in mediationverse_packages() where the @return section had a missing closing parenthesis in the version field description (R/packages.R:13)

Workflow Optimization & Standardization (2025-12-05)

Performance Improvements

• Optimized R-CMD-check workflow: Reduced from 5 to 3 platforms (macOS, Windows, Ubuntu release)
• Removed problematic platforms: Dropped ubuntu-latest (devel) and ubuntu-latest (oldrel-1)
• Runtime improvement: Check workflows now complete in ~3 minutes (down from 6 minutes, 50% faster)
• Build optimization: Added --ignore-vignettes flag to skip vignette validation during CI checks
• Removed Quarto installation: Not needed for CI checks, saves ~30 seconds per run

Infrastructure Updates

• Updated favicons: Regenerated all favicon assets to match updated logo
• Added Gemini AI workflows: Code review, triage, and automated issue management
• .Rbuildignore: Added ^CLAUDE\.md$ and ^STATUS\.md$ for documentation files
• .gitignore: Added CLAUDE.local.md, *.Rcheck/, *.tar.gz for better local development

Standardization

• All workflows passing on main branch
• Consistent with ecosystem badge standards
• Website configuration aligned with mediationverse theme

mediationverse 0.0.0.9000

New Features

• Initial package skeleton with core functionality
• mediationverse_packages() - List installed ecosystem packages with versions
• mediationverse_update() - Update all ecosystem packages from GitHub/CRAN
• mediationverse_conflicts() - Detect and display function name conflicts
• Startup message displays attached packages when loading mediationverse

Ecosystem

The mediationverse meta-package provides unified access to:

• medfit - Infrastructure (S7 classes, model fitting, extraction, bootstrap)
• probmed - Probabilistic effect size (P_med)
• RMediation - Confidence intervals (Distribution of Product, MBCO)
• medrobust - Sensitivity analysis (bounds, falsification)
• medsim - Simulation infrastructure

Documentation

• pkgdown website with standardized ecosystem theme
• README with installation and usage instructions
• Function documentation for all exports

Infrastructure

• GitHub Actions for R CMD check
• GitHub Actions for pkgdown deployment
• Standardized package structure following tidyverse patterns