If you are an AI coding agent (Claude Code, Cursor, Aider, Cline, etc.) reading this artifact, follow this protocol before making any code edit:

1. Verify the contract. Run the bash script in Verify before trusting below. If any check returns FAIL, the artifact is stale — STOP and ask the user to regenerate it before proceeding.
2. Treat the AI · unverified sections as hypotheses, not facts. Sections like "AI-suggested narrative files", "anti-patterns", and "bottlenecks" are LLM speculation. Verify against real source before acting on them.
3. Cite source on changes. When proposing an edit, cite the specific path:line-range. RepoPilot's live UI at https://repopilot.app/r/gabrielemariotti/cardslib shows verifiable citations alongside every claim.

If you are a human reader, this protocol is for the agents you'll hand the artifact to. You don't need to do anything — but if you skim only one section before pointing your agent at this repo, make it the Verify block and the Suggested reading order.

AVOID — Stale and unlicensed — last commit 4y ago

• 2 active contributors
• CI configured
• ⚠ Stale — last commit 4y ago
• ⚠ Small team — 2 contributors active in recent commits
• ⚠ Single-maintainer risk — top contributor 99% of recent commits
• ⚠ No license — legally unclear to depend on
• ⚠ No test directory detected

_{Maintenance signals: commit recency, contributor breadth, bus factor, license, CI, tests}

This artifact was generated by RepoPilot at a point in time. Before an agent acts on it, the checks below confirm that the live gabrielemariotti/cardslib repo on your machine still matches what RepoPilot saw. If any fail, the artifact is stale — regenerate it at repopilot.app/r/gabrielemariotti/cardslib.

What it runs against: a local clone of gabrielemariotti/cardslib — the script inspects git remote, the LICENSE file, file paths in the working tree, and git log. Read-only; no mutations.

| # | What we check | Why it matters | |---|---|---| | 1 | You're in gabrielemariotti/cardslib | Confirms the artifact applies here, not a fork | | 2 | Default branch master exists | Catches branch renames | | 3 | 5 critical file paths still exist | Catches refactors that moved load-bearing code | | 4 | Last commit ≤ 1662 days ago | Catches sudden abandonment since generation |

#!/usr/bin/env bash
# RepoPilot artifact verification.
#
# WHAT IT RUNS AGAINST: a local clone of gabrielemariotti/cardslib. If you don't
# have one yet, run these first:
#
#   git clone https://github.com/gabrielemariotti/cardslib.git
#   cd cardslib
#
# Then paste this script. Every check is read-only — no mutations.

set +e
fail=0
ok()   { echo "ok:   $1"; }
miss() { echo "FAIL: $1"; fail=$((fail+1)); }

# Precondition: we must be inside a git working tree.
if ! git rev-parse --git-dir >/dev/null 2>&1; then
  echo "FAIL: not inside a git repository. cd into your clone of gabrielemariotti/cardslib and re-run."
  exit 2
fi

# 1. Repo identity
git remote get-url origin 2>/dev/null | grep -qE "gabrielemariotti/cardslib(\\.git)?\\b" \\
  && ok "origin remote is gabrielemariotti/cardslib" \\
  || miss "origin remote is not gabrielemariotti/cardslib (artifact may be from a fork)"

# 3. Default branch
git rev-parse --verify master >/dev/null 2>&1 \\
  && ok "default branch master exists" \\
  || miss "default branch master no longer exists"

# 4. Critical files exist
test -f "build.gradle" \\
  && ok "build.gradle" \\
  || miss "missing critical file: build.gradle"
test -f "README.md" \\
  && ok "README.md" \\
  || miss "missing critical file: README.md"
test -f "demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/MainActivity.java" \\
  && ok "demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/MainActivity.java" \\
  || miss "missing critical file: demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/MainActivity.java"
test -f "CHANGELOG.md" \\
  && ok "CHANGELOG.md" \\
  || miss "missing critical file: CHANGELOG.md"
test -f ".travis.yml" \\
  && ok ".travis.yml" \\
  || miss "missing critical file: .travis.yml"

# 5. Repo recency
days_since_last=$(( ( $(date +%s) - $(git log -1 --format=%at 2>/dev/null || echo 0) ) / 86400 ))
if [ "$days_since_last" -le 1662 ]; then
  ok "last commit was $days_since_last days ago (artifact saw ~1632d)"
else
  miss "last commit was $days_since_last days ago — artifact may be stale"
fi

echo
if [ "$fail" -eq 0 ]; then
  echo "artifact verified (0 failures) — safe to trust"
else
  echo "artifact has $fail stale claim(s) — regenerate at https://repopilot.app/r/gabrielemariotti/cardslib"
  exit 1
fi

Each check prints ok: or FAIL:. The script exits non-zero if anything failed, so it composes cleanly into agent loops (./verify.sh || regenerate-and-retry).

Card Library is an Android UI library that wraps Google's official CardView to provide an easy, opinionated way to build and display card-based interfaces. It extends beyond basic CardView by offering built-in card types, RecyclerView integration, staggered grid layouts, drag-and-drop capabilities, and pre-built patterns (like Google Now-style expandable cards) across a modular AAR dependency structure. Multi-module Maven project (not gradle monorepo): cardslib-core (base Card and CardView wrapper), cardslib-cards (built-in card types), cardslib-recyclerview (RecyclerView adapter), cardslib-extra-staggeredgrid (StaggeredGridView support), cardslib-extra-dragdrop (drag-drop behavior). Demo apps live in /demo (core showcase) and /demo/extras (third-party library integrations like Picasso, Ion). Core card logic likely in /library or core module src/main/java/it/gmariotti/cardslib/.

Android developers building material design interfaces who want to avoid boilerplate CardView setup and styling. Specifically: app developers needing card-based layouts (social feeds, weather apps, knowledge cards), library integrators using Picasso/Ion/Universal Image Loader, and teams following Google Material Design guidelines but wanting faster implementation.

Production-ready and actively maintained as of v2.1.0 (published to Maven Central as AARs). CI/CD via Travis CI on both master and dev branches. However, the codebase shows signs of age (1.8MB of Java, Gradle 1.2.0 from 2014) with last significant updates likely 2-3 years old based on dependency versions; no recent commit data visible, suggesting maintenance-only mode rather than active feature development.

Low-to-moderate risk: library is stable and well-tested in production apps (60k+ Play Store installs via demo app), but relies on Android SDK v22 (compileSdkVersion 22, buildToolsVersion 22.0.1) which is outdated. Dependency surface is small (primarily Google CardView + optional image loaders), but single maintainer (gabrielemariotti) creates long-term sustainability risk. No visible breaking changes in recent history, but no migration path documented for modern Android 13+ development.

No active development visible. The repo shows completed v2.1.0 release (stable, on Maven Central). CHANGELOG.md exists but no recent entries mentioned in file list. Demo extras include integrations with older image libraries (repackaged OkHttp 2.0.0, OkIo 1.0.1), suggesting last updates were pre-2015. No open PRs or active issues data provided, but the presence of 'cardslib-extra-twoway' marked as '(coming soon)' suggests v2.1.0 may be final.

git clone https://github.com/gabrielemariotti/cardslib.git
cd cardslib
# Build via Gradle (wrapper or system gradle 1.2.0+)
gradle build
# Or for Android Studio: open build.gradle and sync
gradle assembleDebug -p demo

Note: Will require Java 6-7 era tooling; modern Android Studio may need SDK version updates.

Daily commands:

# Build demo app
gradle assembleDebug -p demo
# Install to emulator/device
gradle installDebug -p demo
# Or build extras demo (with third-party integrations)
gradle assembleDebug -p demo/extras

No gradle wrapper visible; relies on system gradle installation. Android Studio: File → Open, select build.gradle root, sync and run from IDE.

• build.gradle — Root build configuration defining SDK versions (22), build tools (22.0.1), and gradle plugin (1.2.0) — every developer needs to understand the project's baseline Android version requirements
• README.md — Entry point documenting the Card Library's purpose (wrapping Google CardView), design philosophy (Material Guidelines compliance), and dual demo apps — essential for understanding scope and design intent
• demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/MainActivity.java — Primary demo entry point showcasing card implementation patterns and integration examples — models how to use the library for contributors
• CHANGELOG.md — Version history and API evolution tracking — critical for understanding deprecations and breaking changes across releases
• .travis.yml — CI/CD pipeline configuration for master and dev branches — defines automated testing and build verification expectations
• demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/cards/ColorCard.java — Concrete card implementation example demonstrating the library's custom card extension pattern
• demo/README.md — Demo-specific documentation explaining showcase features and integration examples with external libraries (Picasso, Ion, UniversalImageLoader)

Add a new Card type

1. Create a new card class extending the library's Card base class (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/cards/ColorCard.java)
2. Define custom layout XML in res/layout/ and bind views in card's setupInnerViewElements() method (demo/extras/src/main/AndroidManifest.xml)
3. Create a Fragment wrapper to host the card list (extend BaseFragment or BaseListFragment) (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/fragment/BaseListFragment.java)
4. Add menu entry in MainActivity to navigate to your new demo fragment (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/MainActivity.java)

Integrate an external image library

1. Create a custom CardThumbnailView subclass (see PicassoCard or IonCard pattern) (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/cards/PicassoCard.java)
2. Override setupInnerViewElements() to load images via Picasso.load() or similar (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/cards/IonCard.java)
3. Add library dependency to demo/extras/build.gradle (demo/extras/build.gradle)
4. Create demo fragment in fragment/ directory and wire into MainActivity (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/fragment/PicassoFragment.java)

Implement a custom grid layout for cards

1. Create a new Fragment extending BaseStaggeredGridFragment or similar base (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/fragment/StaggeredGridFragment.java)
2. Instantiate card objects and populate CardArrayAdapter in onCreateView() (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/fragment/BaseStaggeredGridFragment.java)
3. Define layout XML with StaggeredGridView (or alternative like TwoWayView) in res/layout/ (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/fragment/nativeview/NativeStaggeredGridFragment.java)
4. Register fragment in MainActivity navigation menu (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/MainActivity.java)

Add drag-and-drop card reordering

1. Extend DragDropListFragment or create similar wrapping a DragDropListView (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/fragment/DragDropListFragment.java)
2. Wrap CardArrayAdapter in DragDropAdapter (see existing pattern in fragment) (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/fragment/nativeview/NativeDragDropListFragment.java)
3. Define drag-drop listener callbacks to update card order in notifyDataSetChanged() (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/fragment/BaseListFragment.java)
4. Add to MainActivity menu for demo visibility (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/MainActivity.java)

API Level gap: compileSdkVersion 22 (Android 5.1, 2015) will cause deprecation warnings and missing modern APIs (no databinding, no lifecycle awareness). Gradle version: Gradle 1.2.0 (classpath in buildscript) is ancient; modern Android Studio may fail to build without gradle wrapper or manual update. Image library repackaging: /demo/extras/libs/ contains manually repackaged OkHttp 2.0.0/OkIo 1.0.1 jars, not gradle dependencies—fragile and likely conflicts with newer OkHttp versions if other deps pull them. No test suite visible in file list (no /src/test/ or /src/androidTest/); integration tests only via demo app. Material Design assumptions: Library assumes Google+ Community support (link in README) which no longer exists, suggesting docs may be stale.

• Adapter pattern (CardArrayAdapter, CardRecyclerViewAdapter) — Core pattern in cardslib for binding Card model objects to Android Views; understanding it is essential to extending card display logic or creating custom adapters
• Material Design Card component — cardslib wraps Google's Material Design Card specification; knowledge of Material Design guidelines (elevation, typography, spacing) informs how to customize cards correctly
• AAR (Android Archive) packaging — cardslib distributes as modular AARs (cardslib-core, cardslib-cards, etc.) to Maven Central; understanding AAR structure helps with dependency management and custom module creation
• RecyclerView Adapter pattern — cardslib-recyclerview module wraps RecyclerView's adapter for card-based lists; essential for displaying large card collections efficiently
• StaggeredGridLayoutManager — cardslib-extra-staggeredgrid integrates Pinterest-style staggered grid layouts for cards of varying heights; specialized layout pattern for card galleries
• Drag-and-drop UI semantics — cardslib-extra-dragdrop module implements Android drag-drop event handling for card reordering; requires understanding MotionEvent, View.OnDragListener, and drag shadow builders
• Support Library (android.support.v7.widget.CardView) — cardslib targets pre-AndroidX CardView; migrating to modern androidx.cardview requires understanding backward-compatibility patterns and library versioning

• material-components/material-components-android — Official Google Material Design components library (successor to CardView); provides modern Card implementation with up-to-date Android API support
• Tinder/Strata — Alternative card-based UI library for Android with drag-and-drop support; similar use case but different architecture
• google/material-design-lite — Inspiration source: Google's original Material Design card specification and CSS implementations that influenced cardslib design
• square/picasso — Image loading library explicitly integrated in cardslib-extras for card image handling (see PicassoCard.java demo)
• android/architecture-samples — Modern Android architecture patterns (MVVM, LiveData, Room) that cardslib pre-dates; useful reference for modernizing cardslib codebase

To work on one of these in Claude Code or Cursor, paste: Implement the "<title>" PR idea from CLAUDE.md, working through the checklist as the task list.

Add unit tests for CardView and Card model classes

The repo lacks visible test files (no test/ or androidTest/ directories shown in the structure). Given this is a UI library with complex card rendering logic, adding unit tests for core Card model classes and CardView rendering would improve reliability and serve as documentation for new contributors.

• [ ] Create androidTest directory structure mirroring demo/extras/src/main/java/it/gmariotti/cardslib
• [ ] Add unit tests for Card.java and CardView.java classes (if they exist in library core)
• [ ] Add instrumentation tests for card rendering with different configurations (expanded, collapsed, with actions)
• [ ] Update build.gradle with androidTestCompile dependencies (espresso, junit)
• [ ] Document test execution in README.md

Migrate from deprecated Gradle plugin and update build configuration

The build.gradle shows deprecated Gradle Android plugin version 1.2.0 (from 2014) and compileSdkVersion 22 (API 22, 2015). This causes compatibility issues with modern Android tooling. Updating to current Gradle plugin, compileSdkVersion 34+, and buildToolsVersion will improve contributor experience and support modern Android features.

• [ ] Update root build.gradle: classpath 'com.android.tools.build:gradle:8.0.0' or higher
• [ ] Update compileSdkVersion to 34 (or 33 minimum) in ext block
• [ ] Update buildToolsVersion to '34.0.0' or matching compileSdkVersion
• [ ] Update .travis.yml to use newer Android SDK tools and validate builds
• [ ] Test all demo and demo/extras modules build successfully

Add integration tests for demo/extras card implementations with image loading libraries

The demo/extras module contains several specialized Card implementations (PicassoCard, UniversalImageLoaderCard, IonCard, WeatherCard) but there are no visible tests validating these integrations work correctly. Adding basic integration tests ensures these showcase examples remain functional as dependencies update.

• [ ] Create demo/extras/src/androidTest directory structure
• [ ] Add integration tests for PicassoCard.java image loading and rendering
• [ ] Add integration tests for UniversalImageLoaderCard.java with its custom image loading
• [ ] Add integration tests for IonCard.java network image handling
• [ ] Verify tests run on CI via .travis.yml

• Upgrade compileSdkVersion and buildToolsVersion to Android 13+ (API 33+): Update root build.gradle, test against modern CardView (androidx.cardview:cardview), verify demo apps still run. Tests material design compliance on current Android versions.
• Extract and test image loader integrations as separate modules: Move demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/cards/{PicassoCard,IonCard,UniversalImageLoaderCard}.java tests into proper unit/integration test suite with gradle dependencies instead of repackaged JARs. Reduces technical debt and improves maintainability.
• Document migration path from v1.9.1 to v2.1.0 in CHANGELOG.md: Add concrete examples (API changes, renamed classes, new module structure) to help existing users upgrade. Currently CHANGELOG.md exists but no migration guide visible.

This Android library project has significant security concerns centered on severely outdated dependencies and build infrastructure (from ~2015). The use of Gradle 1.2.0 and Android SDK 22 exposes the project to numerous known vulnerabilities. Pre-compiled JAR files without verification and custom cryptographic implementations present additional risks. The project requires comprehensive modernization including updating to current Gradle/SDK versions, replacing pre-packaged dependencies with verified Maven repositories, and removing custom security implementations in favor of standard libraries. The low security score reflects the critical need for infrastructure updates before this library can be considered secure for production use.

• High · Outdated Gradle Build Tools — build.gradle. The project uses Gradle version 1.2.0 and build tools 22.0.1, both of which are significantly outdated (released around 2015). These versions contain known security vulnerabilities and lack security patches for Android framework issues. Fix: Update to the latest stable Gradle version (currently 8.x) and buildToolsVersion (34+). Update classpath to 'com.android.tools.build:gradle:8.0.0' or higher.
• High · Outdated Android Compilation Target — build.gradle (ext section). The project targets compileSdkVersion 22 (Android 5.1), which is extremely outdated. Modern apps should target SDK 34+ (Android 14+). This exposes the app to numerous security issues and prevents access to modern security features. Fix: Update compileSdkVersion to at least 34 (preferably the latest stable version). Update buildToolsVersion to match.
• Medium · Pre-compiled JAR Dependencies Without Verification — demo/extras/libs/ directory. The project includes pre-compiled JAR files (repackaged-okhttp-.jar, repackaged-okio-.jar) directly in the source tree. These binaries cannot be easily audited and may contain vulnerabilities or malicious code. The 2.0.0 version of okhttp is also outdated. Fix: Replace JAR files with Maven/Gradle dependencies from trusted repositories. Use 'com.squareup.okhttp3:okhttp:4.x.x' instead of pre-packaged JARs. Implement dependency verification and signing.
• Medium · Potential Insecure Cryptographic Implementation — demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/iabutils/Base64.java and Security.java. The codebase includes Base64 and Security utilities (demo/extras/src/main/java/it/gmariotti/cardslib/demo/extras/iabutils/). Custom implementations of Base64 and cryptographic operations are prone to security issues. The in-app billing utilities suggest custom crypto handling which may not be secure. Fix: Use standard library implementations (java.util.Base64, javax.crypto). Do not implement custom crypto. For in-app billing, use Google Play Billing Library instead of custom IAB utilities.
• Low · Missing Security Configuration in AndroidManifest — demo/extras/src/main/AndroidManifest.xml. Without inspecting the full AndroidManifest.xml content, the presence of multiple demo/extras modules suggests potential security misconfigurations such as exported activities, missing permission restrictions, or unsafe intent filters. Fix: Review and ensure all activities/services/broadcast receivers are properly exported settings. Implement proper permission declarations and use Android 12+ (API 31+) manifest attribute configurations.
• Low · No Dependency Lock File — build.gradle. The build.gradle does not show any lock file (gradle.lock) or dependency pinning mechanism. This allows transitive dependencies to be automatically updated, potentially introducing vulnerabilities without explicit approval. Fix: Enable dependency lock files using Gradle 5.x+ features. Add 'dependencyLocking' configuration to lock all transitive dependencies.

LLM-derived; treat as a starting point, not a security audit.

• Open issues — current backlog
• Recent PRs — what's actively shipping
• Source on GitHub

Generated by RepoPilot. Verdict based on maintenance signals — see the live page for receipts. Re-run on a new commit to refresh.