Fallow Skills
Fallow Skills teaches Claude Code, Cursor, Codex, and other coding agents the right Fallow CLI commands and flags for codebase cleanup.
The install is two minutes and the payoff is immediate: your agent stops guessing Fallow flags and starts running the right command with the right output mode. The gotchas file earns its keep on its own, especially the fix --yes non-TTY trap that quietly corrupts an auto-fix run. The Claude Code commit gate — a PreToolUse hook that runs fallow audit before git commit and git push and blocks on a fail verdict — is the piece that turns the skills from documentation into enforcement, and it only fires in projects that already have a Fallow config or dependency. It's free and open, so the only real question is whether you already run an agent against Fallow — if you don't, there's nothing here
Verified 5d ago · liveness 60/100 · cite: rightaichoice.com/tools/fallow-skills
- Developers running the Fallow CLI through Claude Code, Cursor, or another coding agent on TS/JS projects
- Teams wiring a Fallow code-quality CI gate and letting the setup skill install it with a baseline
- Engineers migrating from knip or jscpd who want documented, agent-assisted analysis
- Monorepo teams whose agent needs to pick the right Fallow analysis mode instead of guessing flags
- Developers who only run Fallow by hand from a terminal — the skills need an agent reading them
- Projects outside TypeScript and JavaScript, since Fallow analyzes TS and JS only
- Anyone wanting live in-editor diagnostics — the VS Code extension covers that
We scan live Reddit threads, YouTube comments, X posts, G2 reviews and other communities — and hand you an honest verdict in under a minute.
- Honest verdict, not marketing
- Real pros & cons from real users
- Attributed quotes with receipts
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Skip Fallow Skills if no coding agent is driving Fallow in your repo, or if your project isn't TypeScript or JavaScript — the package is pure agent guidance, so without an agent reading it there is nothing to run.
The skills are free, but the Fallow CLI they drive must be installed and configured separately, so your real cost is the analyzer setup plus the CI minutes the commit and push gate consumes.
Fallow Skills ships as a free, open-source package (fallow-skills) fetched from the fallow-rs GitHub repository, so there is no license line at any team size. The cost that actually scales with your team is the Fallow CLI and its CI usage, not this package: a small TS/JS team gets the commit gate for nothing beyond existing CI minutes, while a monorepo running fallow audit on every push pays in build minutes rather than seats.
In short
Fallow Skills — Fallow Skills teaches Claude Code, Cursor, Codex, and other coding agents the right Fallow CLI commands and flags for codebase cleanup. Best for Developers running the Fallow CLI through Claude Code, Cursor, or another coding agent on TS/JS projects, Teams wiring a Fallow code-quality CI gate and letting the setup skill install it with a baseline, Engineers migrating from knip or jscpd who want documented, agent-assisted analysis. Free to use.
What's new in Fallow Skills
Checked 5 days agoAcross the latest 3 updates: 3 feature updates.
Claude Code commit gate blocks git commit and git push on a fail verdict
The Claude Code plugin adds a PreToolUse hook that runs fallow audit before git commit and git push. It activates only in projects with a fallow config file or a fallow dependency in package.json, and FALLOW_PLUGIN_GATE=off disables it.
Codex plugin adds the Fallow app with code health dashboard and thread tab
Installing the Codex plugin via codex plugin marketplace add fallow-rs/fallow-skills and codex plugin add fallow@fallow-skills also adds a Fallow app: a code health dashboard, a thread tab, and composer attachments.
fallow agent install writes skills, MCP registration, AGENTS.md task map, and commit/push gate
For projects that already have fallow from npm, fallow agent install writes the fallow and fallow-setup skills where Claude Code, Codex and Cursor look, plus MCP registration, an AGENTS.md task map, and the commit and push gate. --dry-run previews the plan.
What people actually say about Fallow Skills — is it worth it?
We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.
4 mentions across 1 source (GitHub) · researched Jul 4, 2026.
Average across the 1 source that answered — each source counts once, not each post.
- +Free to use with no pricing tiers.
- +Deep integration with 30+ AI coding agents.
- +Covers dead code, duplication, circular deps, complexity, architecture violations.
- +Auto-fix with dry-run preview for safe application.
- +CI pipeline workflow recipes for GitHub Actions and GitLab CI.
- −Installation via skills.sh broken due to repo move.
- −Documentation markdown has invalid link anchors causing CI failures.
- −Very limited community posts – only 4 on GitHub.
- −No confirmed user success stories with AI agents yet.
- −Relatively unknown – low star count (101) and buzz.
- • Requires Fallow CLI and MCP, which may have separate costs; none mentioned.
Viability Score
How well maintained and how widely used is Fallow Skills? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: October 2026
How we score →Key Features
- Analysis skill with workflows for unused code, duplication, complexity, and boundary analysis
- Setup skill detects existing quality tools, runs fallow recommend, and installs a CI gate with baseline
- CLI reference documenting commands, flags, output formats, and configuration
- Gotchas file with correct versus incorrect examples for common Fallow pitfalls
- Gotcha example: running fallow fix --yes in a non-TTY context
- Workflow recipes for CI pipelines, monorepo analysis, and incremental adoption
- Migration recipes for teams moving from knip or jscpd
- Natural-language handling: 'Find all unused exports in this project' runs fallow dead-code --format json --quiet
- Duplication requests run fallow dupes and explain clone families
- Auto-fix workflow enforces a dry-run preview before applying with --yes
- False-positive debugging via fallow --trace with suppression suggestions
- Commit gate (Claude Code plugin) runs fallow audit before git commit and git push, blocks on fail verdict
- fallow agent install writes skills, MCP registration, AGENTS.md task map, and commit/push gate
- --dry-run flag previews the fallow agent install plan before it runs
- One-line install in Claude Code via /plugin marketplace add fallow-rs/fallow-skills
About Fallow Skills
Fallow Skills is a free, open-source package that gives your coding agent a working manual for the Fallow codebase-health CLI. Instead of guessing flags from general knowledge, the agent reads the installed skills and runs the right Fallow command, with the right output format, on the first try. It is aimed at JavaScript and TypeScript developers who already run Fallow, or plan to, and who work inside Claude Code, Cursor, Codex, Windsurf, GitHub Copilot, Gemini CLI, or Amp. The fallow-skills package ships five components. The analysis skill covers unused code, duplication, complexity, boundary analysis, auto-fix, and CI setup. The setup skill (fallow-setup) detects existing tooling, runs fallow recommend, installs Fallow, runs fallow agent install, and adds a CI gate with a baseline. A CLI reference documents commands, flags, output formats, and configuration. A gotchas file shows common pitfalls with correct and incorrect examples, such as running fallow fix --yes in a non-TTY context. Workflow patterns give recipes for CI pipelines, monorepo analysis, migrating from knip or jscpd, and incremental adoption. Installation fits the agent you use. Claude Code gets a one-line marketplace add plus install; Cursor, Windsurf, Copilot, Codex, and Amp take a git clone into the skills directory; Gemini CLI uses gemini skills install. If Fallow is already installed from npm, fallow agent install writes the skills where Claude Code, Codex, and Cursor look, alongside MCP registration, an AGENTS.md task map, and a commit/push gate — add --dry-run to inspect the plan first. Skills complement the CLI and MCP integration rather than replace them: skills supply knowledge, MCP supplies a structured tool interface, and the CLI executes. Because the package follows the open Agent Skills specification, any compatible agent can read it. The Claude Code plugin adds a commit gate: a PreToolUse hook that runs fallow audit before git commit and git push and blocks the command on a fail verdict, active only in projects that use Fallow, and disabled with FALLOW_PLUGIN_GATE=off.
Behind the Verdict
Fallow Skills solves a specific and under-appreciated problem: a coding agent that half-knows your CLI will invent flags, misuse output formats, and confidently hand you a wrong command. The fallow-skills package addresses that by shipping five components — an analysis skill covering unused code, duplication, complexity, boundary analysis, auto-fix and CI setup; a setup skill (fallow-setup) that detects existing tooling, runs fallow recommend, installs Fallow, runs fallow agent install and adds a CI gate with a baseline; a CLI reference for commands, flags, output formats and configuration; a gotchas file with correct-versus-incorrect examples; and workflow patterns for CI pipelines, monorepo analysis, knip/jscpd migration and incremental adoption. The gotchas file is the standout. It documents the kind of trap that a general-purpose model will walk straight into, naming fallow fix --yes in a non-TTY context as its worked example. Natural-language handling is genuinely useful: asking for all unused exports in a project resolves to fallow dead-code --format json --quiet, and duplication requests run fallow dupes with an explanation of clone families. The auto-fix workflow enforces a dry-run preview before applying --yes, and false-positive debugging runs through fallow --trace with suppression suggestions. The Claude Code plugin adds a PreToolUse commit gate that runs fallow audit before git commit and git push and blocks on a fail verdict — this is the most consequential part of the package, because it converts agent guidance into an enforced step. It activates only in a project with a fallow config file or a fallow dependency in package.json, and it stands down where fallow agent install already registered a gate for Claude Code or Codex. You can turn it off with FALLOW_PLUGIN_GATE=off. The honest boundaries: the skills guide the analyzer, they are not the analyzer, so the Fallow CLI must be installed and configured separately. Accuracy depends on the agent following the structured workflows, and edge cases in unusual codebases can still produce errors — the gotchas file documents known pitfalls, not every pitfall. Scope is TypeScript and JavaScript; other languages are out of scope. There is no live in-editor diagnostics layer here, which is what the VS Code extension covers. The cleanest install path is fallow agent install when Fallow is already in package.json, with --dry-run to inspect the plan first; otherwise Claude Code takes a one-line marketplace add plus install, Cursor, Windsurf, Copilot, Codex and Amp take a git clone into the skills directory, and Gemini CLI uses gemini skills install.
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Real-world workflow fit
Concrete scenarios for the personas Fallow Skills actually fits — and what changes day-one when you adopt it.
Adds the fallow-skills marketplace with /plugin marketplace add fallow-rs/fallow-skills, then asks the agent to find all unused exports; the analysis skill resolves that to fallow dead-code --format json --quiet rather than a guessed flag set.
Outcome: Dead-code results come back in a parseable format on the first attempt, and the gotchas file keeps the agent away from the fix --yes non-TTY trap.
Runs fallow agent install (with --dry-run first) so the skills land where Claude Code, Codex and Cursor look, along with MCP registration, an AGENTS.md task map, and a commit/push gate.
Outcome: The commit gate runs fallow audit before git commit and git push and blocks on a fail verdict, so dead code and boundary violations stop at the hook instead of in review.
Points the agent at the migration workflow pattern, which walks the repo from an existing knip configuration to Fallow step by step, then asks the setup skill to add a CI gate with a baseline.
Outcome: The migration is documented and repeatable, and the baseline means the CI gate blocks new violations without failing on the existing backlog.
Use Cases
- Ask your agent to find all unused exports in a project with a single natural language request.
- Identify duplicate code blocks and let the agent refactor them using clone family analysis from fallow dupes.
- Detect circular dependencies in a monorepo and get auto-fix suggestions.
- Set up a CI pipeline that gates PRs on dead code thresholds using an agent-generated workflow.
- Migrate an existing knip configuration to Fallow with step-by-step agent guidance.
- Analyze complexity hotspots and architecture boundary violations during code review.
- Let the agent pick the analysis mode instead of guessing flags on a large TypeScript repo.
- Run a dry-run preview of auto-fix before letting the agent apply --yes.
Limitations
- The skills require the Fallow CLI to be installed and configured separately, since they provide guidance rather than the analyzer itself.
- Accuracy depends on the agent following the structured workflows, and edge cases can still produce errors.
- Error handling for unusual codebases is not guaranteed by the gotchas file; it documents known pitfalls, not every pitfall.
- The Claude Code commit gate activates only in projects with a fallow config file or a fallow dependency in package.json, and FALLOW_PLUGIN_GATE=off disables it.
as of 2026-10-13
Verification history
We have re-verified Fallow Skills 9 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-checked, vendor evidence unchanged
- — re-checked, vendor evidence unchanged
Showing the 6 most recent of 9 verification passes.
Free to cite with attribution — this page re-verifies continuously.
Where the pricing makes sense
The company stage and team size where Fallow Skills's pricing actually pencils out — and where peers do it cheaper.
Fallow Skills ships as a free, open-source package (fallow-skills) fetched from the fallow-rs GitHub repository, so there is no license line at any team size. The cost that actually scales with your team is the Fallow CLI and its CI usage, not this package: a small TS/JS team gets the commit gate for nothing beyond existing CI minutes, while a monorepo running fallow audit on every push pays in build minutes rather than seats.
Setup time & first value
How long it actually takes to get something useful out of Fallow Skills — broken out by persona, not the marketing-page minute.
In Claude Code, one line — /plugin marketplace add fallow-rs/fallow-skills plus install — gets skills loaded, and the commit gate activates on the next commit in a project that already uses Fallow. If Fallow is already installed from npm, fallow agent install is the shortest path, writing skills, MCP registration, an AGENTS.md task map and the commit/push gate in one shot; --dry-run shows the
Switching to or from Fallow Skills
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From knip: the workflow patterns include a documented migration recipe, and the setup skill can add a CI gate with a baseline afterward.
- →From jscpd: a dedicated migration recipe covers moving duplication analysis to fallow dupes with clone family explanations.
- →From manual Fallow usage: fallow agent install writes skills, MCP registration, an AGENTS.md task map and the commit/push gate, with --dry-run to preview.
- ↗To CLI-only Fallow: uninstall the plugin and set FALLOW_PLUGIN_GATE=off to disable the Claude Code commit gate without removing the CLI.
Integrations
Resources & Guides
Tutorials & Learning
YouTube returned 6 videos for “Fallow Skills”, and we withheld 6: 6 did not mention Fallow Skills. We are showing none, because we could not prove any of them are about Fallow Skills.
Official links
Tools that pair well with Fallow Skills
Common stack mates teams adopt alongside Fallow Skills, with the specific reason each pairing earns its keep.
CodeViz
CodeViz turns your codebase into a Git-versioned architecture diagram you edit inside VS Code or Cursor.
Bito
Bito Governor is an AI model router with a code context engine that cuts coding-agent spend by 40-70%.
Ellipsis
Run Claude Code and Codex coding agents in managed cloud sandboxes defined by YAML in your repo.
Featured Head-to-Head Comparisons
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These tools serve entirely different needs: Presto Voice automates drive-thru ordering for QSR chains, boosting revenue through upselling, while Fallow Skills helps developers clean up TypeScript/JavaScript codebases via AI agents. Choose Presto if you run a multi-location QSR; choose Fallow Skills if you're a developer using AI coding agents and need structured code analysis.
Fallow Skills vs Truleo
Truleo is a must-have for law enforcement agencies drowning in siloed data—it turns manual case research into automated lead generation. Fallow Skills is invaluable for TypeScript/JavaScript developers using AI coding agents who want reliable, versioned codebase analysis. They serve entirely different worlds; choose based on your domain.
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