EvanFlow
A TDD-driven iterative feedback loop for software development with Claude Code, walking ideas from brainstorm through implementation with human checkpoints throughout.
At a Glance
Fully free and open source under MIT license. All 16 skills, 2 custom subagents, and the git guardrails hook are included.
Engagement
Available On
Alternatives
Listed Apr 2026
About EvanFlow
EvanFlow is a TDD-driven iterative feedback loop for software development built on top of Claude Code. It provides 16 cohesive skills and 2 custom subagents that walk an idea from brainstorm through planning, execution, and iteration, with real human checkpoints at every critical stage. The loop is designed as a conductor, not an autopilot — it never auto-commits, never auto-stages, and always stops to await your direction before any git operation.
- Single entry point — say "let's evanflow this" and the
evanflow-goorchestrator fires and walks the entire loop automatically. - TDD as discipline, not a phase —
evanflow-tddruns vertical-slice RED → GREEN → REFACTOR inside every code-writing task, with assertion-correctness warnings baked in. - Human checkpoints — the loop stops at design approval, plan approval, and after iteration; you stay in control at every gate.
- Parallel coder/overseer orchestration — for plans with 3+ independent units, the loop forks into parallel coders (each with vertical-slice TDD) and read-only overseer subagents that can report findings but never modify code.
- Five Failure Modes checklist — every iterate phase runs a pass against hallucinated actions, scope creep, cascading errors, context loss, and tool misuse.
- Git guardrails hook — a bundled
block-dangerous-git.shPreToolUse hook blocks destructive git operations (git push,git reset --hard,git clean -f, etc.) and auto-activates with the plugin install path. - Context drift management —
evanflow-compacttriggers at clean phase boundaries and on drift symptoms to keep long sessions coherent. - 16 skills covering the full lifecycle — brainstorming, planning, execution, TDD, iteration, debugging, architecture review, interface design, PRD synthesis, QA, code review, glossary extraction, and more.
- Three install paths — Claude Code plugin marketplace (recommended, auto-wires hook),
npx skills@latest addCLI, or manual copy from the repository. - MIT licensed and fully customizable — every skill has a clear structure and hard rules section designed to be edited and adapted to your project's conventions.
Community Discussions
Be the first to start a conversation about EvanFlow
Share your experience with EvanFlow, ask questions, or help others learn from your insights.
Pricing
Open Source
Fully free and open source under MIT license. All 16 skills, 2 custom subagents, and the git guardrails hook are included.
- 16 Claude Code skills
- 2 custom subagents (coder and overseer)
- Git guardrails hook
- Claude Code plugin marketplace install
- npx CLI install
Capabilities
Key Features
- TDD-driven iterative feedback loop
- 16 cohesive Claude Code skills
- 2 custom subagents (coder and overseer)
- Single entry point via evanflow-go
- Human checkpoints at design, plan, and iteration stages
- Parallel coder/overseer orchestration for independent tasks
- Vertical-slice TDD per task (RED → GREEN → REFACTOR)
- Five Failure Modes checklist in iterate phase
- Git guardrails hook blocking destructive operations
- Context drift management via evanflow-compact
- Brainstorming with embedded grill/stress-test
- File structure-first planning with deletion test
- Assertion-correctness warnings in TDD
- Visual UI verification via headless Chromium
- Hard cap of 5 iterations
- No auto-commit, no auto-stage, no auto-finish
