GGCoder is an extended version of Superpowers - a complete software development workflow for coding agents. It includes all the original Superpowers capabilities plus specialized code review and fixing for GridGain 9 / Apache Ignite 3 codebases.
In addition to the core Superpowers workflow (brainstorming, planning, TDD, subagent-driven development), GGCoder adds:
- 5 Specialized Reviewers - Domain-specific code review for GridGain/Ignite
- 6 Automated Fixers - Apply fixes using patterns from 100+ real PRs
- 9 Pattern Skills - Concurrency, resource cleanup, async, testing patterns
- Layered Review - GridGain reviewers run first, then architecture review
| Reviewer | Focus |
|---|---|
gg-safety-reviewer |
Concurrency, resource leaks, null safety, type safety |
gg-quality-reviewer |
Dead code, duplication, logging, style |
gg-testing-reviewer |
Coverage gaps, assertions, flakiness |
gg-cpp-reviewer |
C++ headers, ownership, shell scripts |
gg-build-reviewer |
Dependencies, API consistency |
When you use ggcoder:subagent-driven-development or ggcoder:requesting-code-review:
Pass 1: GridGain Domain Reviewers (Parallel)
├── .java/.cs files → gg-safety + gg-quality + gg-testing
├── .cpp/.h files → gg-cpp
└── build.gradle → gg-build
Pass 2: Architecture Review
└── code-reviewer (plan alignment, design patterns)
It starts from the moment you fire up your coding agent. As soon as it sees that you're building something, it doesn't just jump into trying to write code. Instead, it steps back and asks you what you're really trying to do.
Once it's teased a spec out of the conversation, it shows it to you in chunks short enough to actually read and digest.
After you've signed off on the design, your agent puts together an implementation plan that's clear enough for an enthusiastic junior engineer with poor taste, no judgement, no project context, and an aversion to testing to follow. It emphasizes true red/green TDD, YAGNI (You Aren't Gonna Need It), and DRY.
Next up, once you say "go", it launches a subagent-driven-development process, having agents work through each engineering task, inspecting and reviewing their work, and continuing forward. It's not uncommon for Claude to be able to work autonomously for a couple hours at a time without deviating from the plan you put together.
There's a bunch more to it, but that's the core of the system. And because the skills trigger automatically, you don't need to do anything special.
GGCoder is built on top of Superpowers by Jesse Vincent. If you find this useful, consider sponsoring his opensource work.
Note: Installation differs by platform. Claude Code or Cursor have built-in plugin marketplaces. Codex and OpenCode require manual setup.
In Claude Code, register the marketplace first:
/plugin marketplace add tapnetix/ggcoderThen install the plugin:
/plugin install ggcoder@ggcoder-marketplaceIn Cursor Agent chat, install from marketplace:
/add-plugin ggcoder
or search for "ggcoder" in the plugin marketplace.
Tell Codex:
Fetch and follow instructions from https://raw.githubusercontent.com/tapnetix/ggcoder/refs/heads/main/.codex/INSTALL.md
Detailed docs: docs/README.codex.md
Tell OpenCode:
Fetch and follow instructions from https://raw.githubusercontent.com/tapnetix/ggcoder/refs/heads/main/.opencode/INSTALL.md
Detailed docs: docs/README.opencode.md
gemini extensions install https://github.com/obra/superpowersTo update:
gemini extensions update superpowersStart a new session in your chosen platform and ask for something that should trigger a skill (for example, "help me plan this feature" or "let's debug this issue"). The agent should automatically invoke the relevant ggcoder skill.
-
brainstorming - Activates before writing code. Refines rough ideas through questions, explores alternatives, presents design in sections for validation. Saves design document.
-
using-git-worktrees - Activates after design approval. Creates isolated workspace on new branch, runs project setup, verifies clean test baseline.
-
writing-plans - Activates with approved design. Breaks work into bite-sized tasks (2-5 minutes each). Every task has exact file paths, complete code, verification steps.
-
subagent-driven-development or executing-plans - Activates with plan. Dispatches fresh subagent per task with two-stage review (spec compliance, then code quality), or executes in batches with human checkpoints.
-
test-driven-development - Activates during implementation. Enforces RED-GREEN-REFACTOR: write failing test, watch it fail, write minimal code, watch it pass, commit. Deletes code written before tests.
-
requesting-code-review - Activates between tasks. Reviews against plan, reports issues by severity. Critical issues block progress.
-
finishing-a-development-branch - Activates when tasks complete. Verifies tests, presents options (merge/PR/keep/discard), cleans up worktree.
The agent checks for relevant skills before any task. Mandatory workflows, not suggestions.
Testing
- test-driven-development - RED-GREEN-REFACTOR cycle (includes testing anti-patterns reference)
Debugging
- systematic-debugging - 4-phase root cause process (includes root-cause-tracing, defense-in-depth, condition-based-waiting techniques)
- verification-before-completion - Ensure it's actually fixed
Collaboration
- brainstorming - Socratic design refinement
- writing-plans - Detailed implementation plans
- executing-plans - Batch execution with checkpoints
- dispatching-parallel-agents - Concurrent subagent workflows
- requesting-code-review - Layered review with GridGain reviewers + architecture check
- receiving-code-review - Responding to feedback
- using-git-worktrees - Parallel development branches
- finishing-a-development-branch - Merge/PR decision workflow
- subagent-driven-development - Fast iteration with two-stage review (spec compliance, then code quality)
GridGain/Ignite Patterns
- concurrency-patterns - Double-checked locking, private locks, volatile flags
- resource-cleanup-patterns - Idempotent close, async cleanup, early release
- null-check-patterns - Objects.requireNonNull, @Nullable annotations
- async-patterns - CompletableFuture chaining, Channels, cancellation
- test-patterns - Hamcrest matchers, Awaitility, distributed test data
- performance-patterns - Benchmarking, fast paths, executor optimization
- version-compatibility-patterns - Protocol feature flags, version checks
- security-context-patterns - SecurityContextHolder, credentials handling
- review-pr - Orchestrates layered review process
Meta
- writing-skills - Create new skills following best practices (includes testing methodology)
- using-ggcoder - Introduction to the skills system
GridGain Reviewers (5)
gg-safety-reviewer- Concurrency, resources, null safety, type safetygg-quality-reviewer- Dead code, duplication, stylegg-testing-reviewer- Coverage, assertions, flakinessgg-cpp-reviewer- C++/CMake/shell issuesgg-build-reviewer- Dependencies, API consistency
GridGain Fixers (6)
gg-safety-fixer- Applies concurrency/resource/null fixes with TDDgg-quality-fixer- Removes dead code, extracts constantsgg-test-fixer- Adds coverage, converts to Hamcrestgg-doc-fixer- Fixes typos, Javadocgg-cpp-fixer- Adds includes, move semanticsgg-build-fixer- Fixes BOM versions, adds READMEs
General
code-reviewer- Plan alignment, architecture review
/brainstorm- Start a brainstorming session/write-plan- Write an implementation plan/execute-plan- Execute a plan step by step/review- Run layered code review (GridGain + architecture)/code-review- Review uncommitted changes with all reviewers/pr-review- Review a PR with all reviewers/fix <category>- Apply fixes (safety, quality, tests, docs, cpp, build)
- Test-Driven Development - Write tests first, always
- Systematic over ad-hoc - Process over guessing
- Complexity reduction - Simplicity as primary goal
- Evidence over claims - Verify before declaring success
Read more: Superpowers for Claude Code
Skills live directly in this repository. To contribute:
- Fork the repository
- Create a branch for your skill
- Follow the
writing-skillsskill for creating and testing new skills - Submit a PR
See skills/writing-skills/SKILL.md for the complete guide.
Skills update automatically when you update the plugin:
/plugin update ggcoder@ggcoder-marketplaceMIT License - see LICENSE file for details
Superpowers is built by Jesse Vincent and the rest of the folks at Prime Radiant.
For community support, questions, and sharing what you're building with Superpowers, join us on Discord.
- Discord: Join us on Discord
- Issues: https://github.com/tapnetix/ggcoder/issues
- Original Superpowers: https://github.com/obra/superpowers