# Cas

> Coding Agent System - unified memory, tasks, rules, and skills. Use when you need to remember something, track work, search past context, or manage tasks. (project)

- **Type:** Skill
- **Install:** `agentstack add skill-codingagentsystem-cas-cas`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [codingagentsystem](https://agentstack.voostack.com/s/codingagentsystem)
- **Installs:** 0
- **Category:** [Search](https://agentstack.voostack.com/c/search)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [codingagentsystem](https://github.com/codingagentsystem)
- **Source:** https://github.com/codingagentsystem/cas/tree/main/.claude/skills/cas
- **Website:** https://codingagentsystem.com

## Install

```sh
agentstack add skill-codingagentsystem-cas-cas
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# CAS - Coding Agent System

**IMPORTANT: Use CAS MCP tools instead of built-in tools for task and memory management.**

CAS provides persistent memory and task management across sessions. Built-in tools like TodoWrite are ephemeral and don't persist.

## WHEN TO USE CAS (ALWAYS)

- **Task tracking**: Use `mcp__cas__task` with action: create instead of TodoWrite
- **Planning tasks**: Use `mcp__cas__task` with action: create and blocked_by for dependencies
- **Storing learnings**: Use `mcp__cas__memory` with action: remember to store context
- **Searching context**: Use `mcp__cas__search` with action: search to find past work

## Task Tools (USE INSTEAD OF TodoWrite)

### Creating Tasks

Use `mcp__cas__task` with action: create and parameters:
- `title` (required) - Task title
- `priority` - 0=critical, 1=high, 2=medium (default), 3=low, 4=backlog
- `start` - Set to true to start immediately (RECOMMENDED)
- `notes` - Initial working notes

### Managing Tasks

All task operations use `mcp__cas__task` with different actions:
- action: ready - Show tasks ready to work on
- action: blocked - Show blocked tasks
- action: list - List all tasks
- action: show - Show task details (requires id)
- action: update - Update notes as you work (requires id)
- action: close - Close with resolution (requires id)

### Task Dependencies

- action: dep_add - Add blocking dependency (requires id, to_id)
- action: dep_list - List dependencies (requires id)

## Memory Tools

All memory operations use `mcp__cas__memory` with different actions:
- action: remember - Store a memory entry (requires content)
- action: get - Get entry details (requires id)
- action: helpful - Mark as helpful (requires id)
- action: harmful - Mark as harmful (requires id)

## Search Tools

Use `mcp__cas__search` with different actions:
- action: search - Search memories (requires query)
- action: context - Get full session context

## Iteration Loops

Use loops for long-running repetitive tasks. The loop blocks session exit and re-injects your prompt until completion.

Use `mcp__cas__coordination` with different actions:
- action: loop_start - Start a loop (requires prompt, session_id, optional completion_promise and max_iterations)
- action: loop_status - Check current loop status (requires session_id)
- action: loop_cancel - Cancel active loop (requires session_id)

To complete a loop, output `DONE` (or your custom promise text).

## Rules & Skills

Use `mcp__cas__rule` and `mcp__cas__skill` with different actions:
- rule action: list - Show active rules
- rule action: helpful - Promote rule to proven (requires id)
- skill action: list - Show enabled skills

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [codingagentsystem](https://github.com/codingagentsystem)
- **Source:** [codingagentsystem/cas](https://github.com/codingagentsystem/cas)
- **License:** MIT
- **Homepage:** https://codingagentsystem.com

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-codingagentsystem-cas-cas
- Seller: https://agentstack.voostack.com/s/codingagentsystem
- Browse the marketplace: https://agentstack.voostack.com/browse

---
Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.