babysit

babysit is a skill for Codex from a5c-ai/babysitter. It costs 55 tokens per session (546 once invoked), scanned A, original, MIT.

A routine for repeatedly executing babysitter runs, which are saved orchestration jobs under .a5c/runs. It also defines where temporary working copies should be created and how to check that they are cleaned up.

In plain words
What is it for?
Use it to orchestrate a process, run babysitter jobs iteratively, create scratch checkouts in /tmp, and verify that run directories contain no leftover worktrees.
Why use it?
It gives multi-step agent work a repeatable execution process and helps prevent temporary workspaces from being left inside run folders. It also checks the installed SDK and command-line tool before use.

Skill for Codex

Written for Codex: installed under .codex/. Also seen: mentions subagents; mentions Codex.

Good fit Use it to orchestrate a process, run babysitter jobs iteratively, create scratch checkouts in /tmp, and verify that run directories contain no leftover worktrees.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/a5c-ai/babysitter/babysit
About the project

Babysitter is a workflow engine for AI coding agents that enforces predefined steps, quality checks, human approvals, and decision records. It is used to coordinate complex, repeatable agent workflows across supported coding tools. The catalogue contains skills, agents, instructions, settings, a plugin, and an MCP integration for its workflow.

a5c-ai/babysitter · 1,778 stars · on GitHub · a5c.ai

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 a5c-ai/babysitter --skill babysit
Clone the repo
git clone --depth 1 https://github.com/a5c-ai/babysitter

Made for: Codex.

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 babysit

README.md
[![agentmods](https://agentmods.dev/badge/skills/a5c-ai/babysitter/babysit/github.svg)](https://agentmods.dev/skills/a5c-ai/babysitter/babysit)
Your own site
<a href="https://agentmods.dev/skills/a5c-ai/babysitter/babysit"><img src="https://agentmods.dev/badge/skills/a5c-ai/babysitter/babysit/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 babysit

Your own site · 80×15
<a href="https://agentmods.dev/skills/a5c-ai/babysitter/babysit"><img src="https://agentmods.dev/badge/skills/a5c-ai/babysitter/babysit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 546 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Tool Misuse · line 44
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
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 $0.00055 $0.00546
Opus 5 $0.00028 $0.00273
Sonnet 5 $0.00011 $0.00109
Haiku 4.5 $0.00006 $0.00055

Measured 9d ago against content hash c10fe07088a2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

babysit 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.

.codex/skills/babysit/SKILL.md · 65 lines

What it actually says

babysit

Orchestrate .a5c/runs/<runId>/ through iterative execution.

Subagents that need a scratch checkout or working directory must create it under /tmp/<descriptive-name>/, not under .a5c/runs/<runId>/work. Before returning deliverables, validate that no run-dir worktree was left behind, for example:

find .a5c/runs -maxdepth 3 -name work -type d -print

That command should print nothing. If it prints a non-empty work directory, move or remove only the scratch data you created before returning.

Dependencies

Babysitter SDK and CLI

Read the SDK version from versions.json to ensure version compatibility:

SDK_VERSION=$(node -e "try{console.log(JSON.parse(require('fs').readFileSync('${CODEX_PLUGIN_ROOT}/versions.json','utf8')).sdkVersion||'latest')}catch{console.log('latest')}")

Use an installed babysitter command only after proving it can execute:

if command -v babysitter >/dev/null 2>&1 && babysitter --version >/dev/null 2>&1; then
  CLI="babysitter"
else
  CLI="npm exec --yes --package @a5c-ai/babysitter-sdk@$SDK_VERSION -- babysitter"
fi

If a stale or broken global shim fails with MODULE_NOT_FOUND, repair it with npm rm -g @a5c-ai/babysitter @a5c-ai/babysitter-sdk && npm i -g @a5c-ai/babysitter-sdk@$SDK_VERSION, then re-run babysitter --version.

jq

Make sure jq is installed and available in the path. If not, install it.

Instructions

Run the following command to get full orchestration instructions:

$CLI instructions:babysit-skill --harness codex --interactive

For non-interactive runs (e.g., with -p flag or no question tool):

$CLI instructions:babysit-skill --harness codex --no-interactive

Follow the instructions returned by the command above to orchestrate the run.

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 · 65 lines · 55 tokens per session scan A c10fe07088a2

Subscribe to this mod's changes

babysit is a skill published in the GitHub repository a5c-ai/babysitter (1,778 stars, last pushed 3d ago), licensed MIT. It adds 55 tokens to every session and 546 once invoked, about $0.0003 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 2026-08-30.