Codebase intelligence for TypeScript and JavaScript. Health, complexity hotspots, duplication, architecture boundaries, circular dependencies, design-system drift, and unused code, from one graph. CLI, GitHub Action, LSP, MCP, and VS Code. Rust, MIT licensed.
Fallow is a command-line static-analysis tool that builds a dependency graph of TypeScript and JavaScript code to identify unused code, duplication, circular dependencies, complexity hotspots, boundary violations, and styling drift. It is for developers reviewing codebases and verifying changes, with catalogue entries that add agent, editor, and workflow integrations.
Latest release v3.33.1 — v3.33.1: health and duplication baselines in CI, Vitest fixes · 10 Oct 2026
47 files for Claude Code, Codex and OpenCode: agent-name, ci-formats-reviewer, cli-output-reviewer, json-output-reviewer and 43 more — 1,492 tokens loaded in every session.
AGENTS.md A 1,122 tok CLAUDE.md A 370 tok .claude/settings.json A — .claude/settings.json A — .claude/settings.json A — .claude/settings.json A — .agents/skills/address-pr-comments/SKILL.md A 45 tok .agents/skills/binary-loop/SKILL.md A 27 tok .agents/skills/browser-smoke-review/SKILL.md A 49 tok .agents/skills/ci-formats-review/SKILL.md A 45 tok .agents/skills/cli-output-review/SKILL.md A 43 tok .agents/skills/conformance-loop/SKILL.md A 28 tok .agents/skills/coverage-loop/SKILL.md A 29 tok .agents/skills/debug-false-positive/SKILL.md A 34 tok .agents/skills/fallow/SKILL.md A 114 tok .agents/skills/fix-gh-actions/SKILL.md A 44 tok .agents/skills/github-action-review/SKILL.md A 48 tok .agents/skills/gitlab-ci-review/SKILL.md A 39 tok .agents/skills/implement/SKILL.md A 36 tok .agents/skills/json-output-review/SKILL.md A 39 tok .agents/skills/lsp-review/SKILL.md A 39 tok .agents/skills/mcp-review/SKILL.md A 35 tok .agents/skills/open-draft-pr/SKILL.md A 47 tok .agents/skills/panel-review-loop/SKILL.md A 28 tok .agents/skills/panel-review/SKILL.md A 34 tok .agents/skills/perf-loop/SKILL.md A 22 tok .agents/skills/review/SKILL.md A 29 tok .agents/skills/rust-review/SKILL.md A 50 tok .agents/skills/ship/SKILL.md A 42 tok .agents/skills/sig-audit-loop/SKILL.md A 31 tok .agents/skills/sig-audit/SKILL.md A 24 tok .agents/skills/sweep/SKILL.md A 28 tok .agents/skills/team-assembly/SKILL.md A 27 tok .agents/skills/triage-issue/SKILL.md A 53 tok .agents/skills/vscode-review/SKILL.md A 35 tok .agents/skills/slop-audit/SKILL.md A 40 tok .agents/skills/fallow-setup/SKILL.md A 100 tok .agents/agents/_template.md A 13 tok .agents/agents/ci-formats-reviewer.md A 28 tok .agents/agents/cli-output-reviewer.md A 20 tok .agents/agents/json-output-reviewer.md A 21 tok .agents/agents/lsp-reviewer.md A 29 tok .agents/agents/mcp-reviewer.md A 22 tok .agents/agents/rust-reviewer.md A 16 tok .agents/agents/user-panel.md A 32 tok .agents/agents/vscode-reviewer.md A 26 tok .agents/agents/ci-integration-reviewer.md A — These files are fallow-rs/fallow's own configuration — they tell Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.