---
name: CAS
slug: cas
category: AI Engineering
description: CAS provides persistent memory and task tracking across sessions for coding agents. Use it to remember context, manage dependencies, and search past work instead of ephemeral built-in tools.
github: "https://github.com/codingagentsystem/cas/tree/main/.claude/skills/cas"
language: Rust
stars: 161
forks: 16
install: "npx degit https://github.com/codingagentsystem/cas/tree/main/.claude/skills/cas ~/.claude/skills/cas"
installs_to: ~/.claude/skills/cas
source_path: .claude/skills/cas/SKILL.md
collection_size: 7
category_size: 3670
collection_url: "https://dirskills.com/collections/codingagentsystem/cas"
added: 2026-09-08T05:36:12.155Z
last_synced: 2026-09-08T05:36:12.155Z
canonical_url: "https://dirskills.com/skills/cas"
---

# CAS

CAS provides persistent memory and task tracking across sessions for coding agents. Use it to remember context, manage dependencies, and search past work instead of ephemeral built-in tools.

**Install:**

```bash
npx degit https://github.com/codingagentsystem/cas/tree/main/.claude/skills/cas ~/.claude/skills/cas
```

## README

# 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 `<promise>DONE</promise>` (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