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.
npx agentmods add skills/jackfranklin/dotfiles/code-reuse-reviewernpx skills add jackfranklin/dotfiles --skill code-reuse-reviewergit clone --depth 1 https://github.com/jackfranklin/dotfilesWrote 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.
[](https://agentmods.dev/skills/jackfranklin/dotfiles/code-reuse-reviewer)<a href="https://agentmods.dev/skills/jackfranklin/dotfiles/code-reuse-reviewer"><img src="https://agentmods.dev/badge/skills/jackfranklin/dotfiles/code-reuse-reviewer.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00050 | $0.00353 |
| Opus 5 | $0.00025 | $0.00177 |
| Sonnet 5 | $0.00010 | $0.00071 |
| Haiku 4.5 | $0.00005 | $0.00035 |
Grade A, and why
code-reuse-reviewer 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 4d 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.
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.
What it actually says
Code Reuse Reviewer
Step 1: Identify target
Determine what code to review:
- Default to uncommitted changes (
git diffandgit diff --cached) - If the user specified a file or range, use that
- If unclear, ask before proceeding
Step 2: Review
Spawn an Explore subagent via the Agent tool. Give it the diff/file contents, the repo root path, and these instructions:
Review the changes for code reuse opportunities. You have access to the full repo — use Grep and Glob to search it.
- Search for existing utilities and helpers that could replace newly written code. Use Grep to find similar patterns elsewhere in the codebase — common locations are utility directories, shared modules, and files adjacent to the changed ones.
- Flag any new function that duplicates existing functionality. Suggest the existing function to use instead.
- Flag any inline logic that could use an existing utility — hand-rolled string manipulation, manual path handling, custom environment checks, ad-hoc type guards, and similar patterns are common candidates.
Step 3: Report findings
Present findings as a list. For each finding include:
- File path and line number
- What the issue is
- Concrete suggestion (e.g. the existing function/utility to use instead)
Do not make any changes. If the user asks to fix specific items, apply those fixes directly.
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.
- 4d ago First seen · 34 lines · 50 tokens per session scan A f67ffe0c35d3
code-reuse-reviewer is a skill published in the GitHub repository jackfranklin/dotfiles (254 stars, last pushed 3d ago), licensed MIT. It adds 50 tokens to every session and 353 once invoked, about $0.0003 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 2026-08-30.
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