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/fusengine/agents/modularizenpx skills add fusengine/agents --skill modularizegit clone --depth 1 https://github.com/fusengine/agentsWhat 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 | $0.00044 | $0.00689 |
| Opus 5 | $0.00022 | $0.00345 |
| Sonnet 5 | $0.00009 | $0.00138 |
| Haiku 4.5 | $0.00004 | $0.00069 |
Grade A, and why
modularize 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.
How it starts
The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.
The core constraint it enforces is that shared logic always routes through a central core -- never module-to-module imports directly.
Agent Workflow (MANDATORY)
detect framework → explore structure → build migration plan → confirm with user → execute → sniper
Framework Detection
| Signal | Framework | Delegate To |
|---|---|---|
FuseCore/ dir + artisan file |
Laravel + FuseCore | fuse-laravel:laravel-expert |
composer.json + artisan (no FuseCore/) |
Laravel standard | fuse-laravel:laravel-expert |
src/modules/ or app/ + next.config |
Next.js + modules/ | fuse-nextjs:nextjs-expert |
src/ + package.json (React, no Next) |
React | fuse-react:react-expert |
Critical Rules
- Analyze first — always explore full structure before proposing anything
- Show migration map — present file-by-file plan before touching any code
- User confirms — never move or modify files without explicit approval
- Cores = central hub — no module-to-module imports; all shared logic goes through core
- Sniper after each file — run
fuse-ai-pilot:sniperafter every file moved or created
Workflow Steps
- Detect framework using signals from the table above
- Explore codebase: map all files, dependencies, imports, exports
- Build migration plan: list every file to create, move, or refactor
- Present plan to user — wait for explicit confirmation before proceeding
- Execute step by step; stop and report any conflict immediately
- Run sniper validation after each file change
- Final report: list all changes made and any remaining manual steps
What ships with it
2 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.
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.
- yesterday First seen · 58 lines · 44 tokens per session scan A 445147fb443f
modularize is a skill published in the GitHub repository fusengine/agents (25 stars, last pushed 28d ago), licensed MIT. It adds 44 tokens to every session and 689 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 2026-08-30.
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