fr-code-reuse

fr-code-reuse is a command for coding agents from tractorjuice/arc-kit. It costs 39 tokens per session (3,708 once invoked), scanned A, original, no licence file.

An assessment of whether existing public code can be reused before commissioning new software for a French administration.

In plain words
What is it for?
It is for finding and assessing reusable public code during planning for an administration project.
Why use it?
It helps administrations avoid unnecessary new development and check reuse opportunities required by French public-sector rules.

Command

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the arckit-fr plugin — 12 commands shipped together

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.

agentmods
npx agentmods add commands/tractorjuice/arc-kit/fr-code-reuse
Clone the repo
git clone --depth 1 https://github.com/tractorjuice/arc-kit

Or install arckit-fr, the plugin that ships this one along with the rest of its 12 commands.

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 fr-code-reuse

README.md
[![agentmods](https://agentmods.dev/badge/commands/tractorjuice/arc-kit/fr-code-reuse.svg)](https://agentmods.dev/commands/tractorjuice/arc-kit/fr-code-reuse)
Your own site
<a href="https://agentmods.dev/commands/tractorjuice/arc-kit/fr-code-reuse"><img src="https://agentmods.dev/badge/commands/tractorjuice/arc-kit/fr-code-reuse.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,708 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00039 $0.03708
Opus 5 $0.00019 $0.01854
Sonnet 5 $0.00008 $0.00742
Haiku 4.5 $0.00004 $0.00371

Measured yesterday against content hash 8f6d184b7d3b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fr-code-reuse scanned grade A with 0 findings 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 yesterday.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/arckit-claude/plugins/fr/commands/fr-code-reuse.md · 291 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. yesterday First seen · 291 lines · 39 tokens per session scan A 8f6d184b7d3b

Subscribe to this mod's changes

fr-code-reuse is a command published in the GitHub repository tractorjuice/arc-kit (2,219 stars, last pushed yesterday), with no licence file. It adds 39 tokens to every session and 3,708 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.