plankton-code-quality

Write-time code quality enforcement with auto-formatting, linting, and Claude-powered subprocess fixes on every file edit. Integration reference for Plankton (credit: @alxfazio), a write-time code quality enforcement system for Claude Code. Plankton runs formatters and linters on every file edit via PostToolUse hooks, then spawns Claude subprocesses to fix violations the agent didn't catch. Every time Claude Code edits or writes a file, Plankton's multi_linter.sh PostToolUse hook runs: The main agent only sees issues the subprocess couldn't fix. Most quality problems are resolved transparently. LLMs will modify .ruff.toml or biome.json to disable rules rather than fix code. Plankton blocks this with three layers: A PreToolUse hook on Bash blocks legacy package managers: Note: Plankton requires manual installation from its repository. Review the code before installing.