# Casr

> Runs the casr operator skill in a Codex environment, reading the source skill for behavior and using the local shell with JSON/NDJSON command surfaces.

- Skill: `majiayu000/casr` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/casr`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/casr/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools, Dev Tooling
- Tags: Casr, Codex, Command Line, Shell
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-08-22
- Page: https://skillmd.com/skills/majiayu000/casr

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# casr (Codex)

Codex-native entry point for the `casr` operator skill.

The AgentOps source skill `../../skills/casr/SKILL.md` is the source of truth
for domain behavior, commands, examples, references, and output expectations.
Read it first, then use `prompt.md` for the Codex runtime profile.

## Codex Runtime Contract

- Use Codex plus the local shell. Do not invoke Claude Code as an executor.
- Load only the relevant source references or scripts for the task.
- Prefer robot/JSON/NDJSON command surfaces when the source skill exposes them.
- Verify command syntax from local `--help` or checked-in references before acting.
- Return concrete evidence: commands run, files touched, exit codes, and any remaining blocker.