Code Decisions: Open Source Claude Plugin Captures Technical Decisions
Code Decisions is a Claude Code plugin that addresses the problem of Claude forgetting technical decisions between sessions, whether working solo with parallel sessions or collaborating with a team. The plugin captures decisions made during normal conversation and persists them for future reference.
How It Works
When you make a technical decision in conversation with Claude—for example, saying "use raw SQL for dashboard queries" or "use Redis, Sidekiq is too heavy"—the plugin detects decision language and writes a markdown file to .claude/decisions/. Each file includes an affects field pointing to the files it governs. When anyone on the team (including future-you) edits those files, the decision automatically surfaces in their Claude session.
Key Features
- Zero configuration, zero dependencies (stdlib-only Python)
- Always advisory—provides nudges but never blocks
- Markdown files serve as the source of truth (not a database)
- Decisions commit to git and travel with the repository
- Decisions appear in pull requests
Manual Control Commands
The plugin includes a /decision command for manual control:
/decision authsearches past decisions about authentication/decision --tagsbrowses decisions by topic/decision undoreverts the last captured decision
The plugin is MIT licensed and available on GitHub at https://github.com/zimalabs/code-decisions.
📖 Read the full source: r/ClaudeAI
👀 See Also
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A developer who used Claude Code daily for 9 months has open-sourced a pipeline that structures feature development with checkpoints like functional documentation, technical documentation, complexity estimation, and security checks. The pipeline includes /new-feature and /bug-fix entry points that guide implementation.
Comparing Multi-Agent AI Systems: Anthropic's Harness vs Agyn's Engineering Org Model
Anthropic published a harness design for long-running application development, while Agyn's multi-agent system for team-based autonomous software engineering was open-sourced last month. Both systems reject monolithic agents in favor of role separation, structured handoffs, and review loops.
Claude Code Dynamic Workflows: Parallel Subagents & UltraCode Mode
Claude Code introduces dynamic workflows that orchestrate tens to hundreds of parallel subagents for complex tasks like codebase-wide bug hunts, large migrations, and multi-angle verification. UltraCode mode auto-triggers workflows on hard problems.