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/auravixstudio/caelo/refactornpx skills add AuraVixStudio/caelo --skill refactorgit clone --depth 1 https://github.com/AuraVixStudio/caeloWhat 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 | $0.00019 | $0.00243 |
| Opus 5 | $0.00010 | $0.00121 |
| Sonnet 5 | $0.00004 | $0.00049 |
| Haiku 4.5 | $0.00002 | $0.00024 |
Grade A, and why
Refactor (behavior-preserving) 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 3d 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
Refactor (behavior-preserving)
Use this to improve readability/structure without changing what the code does.
Steps
- Pin behavior. Make sure there are tests (or add a couple) that capture the current behavior before you touch anything.
- Small steps. Make one structural change at a time (extract function, rename, dedup, inline). Keep each step mechanical and reversible.
- Verify each step. Run tests / type-check after each change. Never batch many refactors and verify once at the end.
- No behavior change. If you spot a bug, note it and fix it in a separate change — not inside the refactor.
- Report. Summarize the structural changes and confirm behavior is unchanged.
Notes
- Match the surrounding style and naming. The diff should read as obviously equivalent.
- Stop when the code is clear — refactoring has diminishing returns.
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.
- 3d ago First seen · 27 lines · 19 tokens per session scan A 22b2d0a3bb91
Refactor (behavior-preserving) is a skill published in the GitHub repository AuraVixStudio/caelo (22 stars, last pushed 21d ago), licensed Apache-2.0. It adds 19 tokens to every session and 243 once invoked, about $0.0001 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.
Other skills, from other repositories
compose:subagent
Use when executing implementation plans with independent tasks in the current session.
compose:plan
Use when you have a spec or requirements for a multi-step task, before touching code.
skill-creator
Use when creating, updating, packaging, or validating an Lfcode skill. Covers normal user-managed skills stored under the Lfcode data directory skills/ / and built-in bundled skills shipped from packages/lfcode/src/skill/lfcode/.bundle/ /.
playwright-browser
Use when controlling browser pages with Playwright MCP in Lfcode; guides navigation, screenshots, interaction, and reuse of hidden or collapsed embedded side browser targets instead of the Electron app shell.
compose:brainstorm
You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
compose:new-skill
Use when creating new skills, editing existing skills, or verifying skills work before deployment.