fallow

fallow is a skill for Claude Code, Codex from andrelandgraf/fullstackrecipes. It costs 178 tokens per session (9,530 once invoked), scanned C, original, no licence file.

A codebase analysis skill for JavaScript and TypeScript projects. Static analysis examines code without running it and reports quality issues, risks, duplication, dependencies, and architecture problems.

In plain words
What is it for?
Use it to inspect changed-code risk, unused files or exports, type and dependency cleanup, circular dependencies, complex code, duplicated code, and boundary violations.
Why use it?
It helps reveal maintenance problems and risky changes that are easy to miss during ordinary code review.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to inspect changed-code risk, unused files or exports, type and dependency cleanup, circular dependencies, complex code, duplicated code, and boundary violations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/andrelandgraf/fullstackrecipes/fallow
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add andrelandgraf/fullstackrecipes --skill fallow
Clone the repo
git clone --depth 1 https://github.com/andrelandgraf/fullstackrecipes

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for fallow

README.md
[![agentmods](https://agentmods.dev/badge/skills/andrelandgraf/fullstackrecipes/fallow/github.svg)](https://agentmods.dev/skills/andrelandgraf/fullstackrecipes/fallow)
Your own site
<a href="https://agentmods.dev/skills/andrelandgraf/fullstackrecipes/fallow"><img src="https://agentmods.dev/badge/skills/andrelandgraf/fullstackrecipes/fallow/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for fallow

Your own site · 80×15
<a href="https://agentmods.dev/skills/andrelandgraf/fullstackrecipes/fallow"><img src="https://agentmods.dev/badge/skills/andrelandgraf/fullstackrecipes/fallow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 178 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,530 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00178 $0.09530
Opus 5.5 $0.00071 $0.03812
Sonnet 5.5 $0.00036 $0.01906
Haiku 4.5 $0.00018 $0.00953

Measured 1mo ago against content hash d393c8b7c3bd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

fallow scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

| `health` | Function complexity analysis (also covers Angular templates as synthetic `<template>` findings: external `.html` files via `templateUrl` AND inline `@Component({ template: \`...\` })`literals; suppress exter
.agents/skills/fallow/SKILL.md · 424 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 424 lines · 178 tokens per session scan C d393c8b7c3bd

Subscribe to this mod's changes

fallow is a skill published in the GitHub repository andrelandgraf/fullstackrecipes (22 stars, last pushed 4mo ago), with no licence file. It adds 178 tokens to every session and 9,530 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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