liquid-cat-physics

liquid-cat-physics is a skill for Claude Code from catcatcatstudio/cat-skills. It costs 107 tokens per session (4,755 once invoked), scanned A, original, MIT.

An autonomous work loop for coding projects. It repeatedly reads saved project state, chooses one focused task, checks confidence before acting, performs the work, and saves the result.

In plain words
What is it for?
Use it for ongoing project work that can be divided into small units, with progress stored in PROJECT_STATE.md and project notes.
Why use it?
It lets work continue across repeated runs without relying on the conversation to remember project context.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

Good fit Use it for ongoing project work that can be divided into small units, with progress stored in PROJECT_STATE.md and project notes.

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Install with agentmods
npx agentmods add skills/catcatcatstudio/cat-skills/liquid-cat-physics
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 catcatcatstudio/cat-skills --skill liquid-cat-physics
Clone the repo
git clone --depth 1 https://github.com/catcatcatstudio/cat-skills

Made for: Claude Code.

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 liquid-cat-physics

README.md
[![agentmods](https://agentmods.dev/badge/skills/catcatcatstudio/cat-skills/liquid-cat-physics/github.svg)](https://agentmods.dev/skills/catcatcatstudio/cat-skills/liquid-cat-physics)
Your own site
<a href="https://agentmods.dev/skills/catcatcatstudio/cat-skills/liquid-cat-physics"><img src="https://agentmods.dev/badge/skills/catcatcatstudio/cat-skills/liquid-cat-physics/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 liquid-cat-physics

Your own site · 80×15
<a href="https://agentmods.dev/skills/catcatcatstudio/cat-skills/liquid-cat-physics"><img src="https://agentmods.dev/badge/skills/catcatcatstudio/cat-skills/liquid-cat-physics.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 107 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,755 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 $0.00107 $0.04755
Opus 5 $0.00053 $0.02377
Sonnet 5 $0.00021 $0.00951
Haiku 4.5 $0.00011 $0.00475

Measured 9d ago against content hash f22dc886d1ec, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

liquid-cat-physics 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 9d 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.

.agents/skills/liquid-cat-physics/SKILL.md · 318 lines

How it starts

The opening of the file, as written. The whole thing — 318 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Liquid Cat Physics

Autonomous deep-work engine. One command to start, then walk away.

How it works

Type /liquid-cat-physics and the skill runs a pre-flight readiness check (once), sets up a recurring cron loop, and keeps going autonomously every 10 minutes.

Each iteration cycle:

ORIENT  → Read state, know where you are           (fast read)
THINK   → Expert assessment, decide next action     (subagent)
GATE    → GREEN/YELLOW/RED confidence check         (decide)
ACT     → Execute ONE unit of work                  (main context)
PERSIST → Update PROJECT_STATE.md + selective notes  (always)

State lives on disk, not in conversation. Context compaction can't erase it.

Reference files (read on demand, NOT every iteration):

  • references/confidence-gate.md — re-read when GATE decision is uncertain
  • references/anti-thrashing.md — re-read when a failure occurs or failure_log is non-empty
  • references/elevate-lens.md — re-read in THINK phase (what to work on)
  • references/prodev-standard.md — re-read in THINK + ACT phases (how to execute)
  • references/browser-verification.md — re-read when doing visual/UI work

When NOT to use this skill

  • No project structure (no git repo, no CLAUDE.md, no clear goals) — set those up first
  • One-off task or quick fix — just do it directly
  • Project requires continuous human design decisions — use /architect instead

Invocation

Input Action
/liquid-cat-physics Start the loop (default 10m interval) + run first iteration
/liquid-cat-physics 5m Start with custom interval
/liquid-cat-physics status Show current state: iteration, cron ID, blocked items, recent actions
/liquid-cat-physics stop Cancel the cron loop + set status to paused
/liquid-cat-physics reset Reset iteration count, clear failure log, keep notebook history

Startup Decision Tree

Every invocation enters here. One path, no ambiguity.

Read PROJECT_STATE.md → look for ## Loop State
│
├── No Loop State found → FIRST RUN
│   1. Run Phase 0: Pre-Flight (interactive)
│   2. Initialize Loop State + _notebook/
│   3. Create cron at requested interval
│   4. Proceed to ORIENT
│
├── Loop State exists, status: paused
│   1. Create new cron at stored interval
│   2. Set status: active
│   3. Proceed to ORIENT
│
├── Loop State exists, status: active
│   1. Check cron_id via CronList
│   ├── Cron alive → Proceed to ORIENT
│   └── Cron dead (session restart, expired)
│       1. Recreate cron at stored interval
│       2. Update cron_id
│       3. Proceed to ORIENT
│
├── Loop State exists, status: checkpoint
│   1. Human resumed after checkpoint — create new cron
│   2. Set status: active
│   3. Proceed to ORIENT
│
├── Loop State exists, status: complete → Exit. "Project complete."
│
└── Loop State exists, status: blocked-stopped
    1. Check if blocked items are now unblocked
    ├── Still blocked → Exit. Show blocked items.
    └── Something unblocked → Create cron, set active, ORIENT

Read the full file on GitHub · 318 lines

Files

What ships with it

7 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. 9d ago First seen · 318 lines · 107 tokens per session scan A f22dc886d1ec

Subscribe to this mod's changes

liquid-cat-physics is a skill published in the GitHub repository catcatcatstudio/cat-skills (3 stars, last pushed 13d ago), licensed MIT. It adds 107 tokens to every session and 4,755 once invoked, about $0.0005 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 2026-08-31.

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