cm-execution

cm-execution is a skill for Claude Code, Codex from tody-agent/codymaster. It costs 30 tokens per session (3,979 once invoked), scanned A, original, no licence file.

An implementation-planning skill for carrying out coding tasks in batches, with checkpoints, separate workers, or parallel work on independent problems.

In plain words
What is it for?
Use it to execute multi-step coding plans, divide separate tasks between workers, or run independent tasks at the same time.
Why use it?
It gives a planned way to move from an implementation plan to completed changes when a task has several parts.

Skill for Claude CodeCodex

Part of the cm plugin — 63 skills, 11 commands, 8 agents, 3 hooks, 1 MCP server shipped together

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.

agentmods
npx agentmods add skills/tody-agent/codymaster/cm-execution
Any agent
npx skills add tody-agent/codymaster --skill cm-execution
Clone the repo
git clone --depth 1 https://github.com/tody-agent/codymaster

Made for: Claude Code, Codex.

Or install cm, the plugin that ships this one along with the rest of its 63 skills, 11 commands, 8 agents, 3 hooks, 1 MCP server.

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 cm-execution

README.md
[![agentmods](https://agentmods.dev/badge/skills/tody-agent/codymaster/cm-execution.svg)](https://agentmods.dev/skills/tody-agent/codymaster/cm-execution)
Your own site
<a href="https://agentmods.dev/skills/tody-agent/codymaster/cm-execution"><img src="https://agentmods.dev/badge/skills/tody-agent/codymaster/cm-execution.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,979 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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 $0.00030 $0.03979
Opus 5 $0.00015 $0.01989
Sonnet 5 $0.00006 $0.00796
Haiku 4.5 $0.00003 $0.00398

Measured 4d ago against content hash b88c63c497e3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cm-execution scanned grade A with 1 finding 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 4d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

| `subprocess.run(f"cmd {arg}", shell=True)` | Command Injection | `subprocess.run(["cmd", arg])` |
.agents/skills/cm-execution/SKILL.md · 412 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 4d ago First seen · 412 lines · 30 tokens per session scan A b88c63c497e3

Subscribe to this mod's changes

cm-execution is a skill published in the GitHub repository tody-agent/codymaster (52 stars, last pushed 9d ago), with no licence file. It adds 30 tokens to every session and 3,979 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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