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.
npx agentmods add agents/a5c-ai/babysitter/codexgit clone --depth 1 https://github.com/a5c-ai/babysitterWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.00399 |
| Opus 5 | $0.00000 | $0.00199 |
| Sonnet 5 | $0.00000 | $0.00080 |
| Haiku 4.5 | $0.00000 | $0.00040 |
Grade B, and why
codex scanned grade B 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 2d 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
Config file: `~/.codex/config.json`. What it actually says
OpenAI Codex
Adapter for OpenAI's Codex CLI.
Install
adapters install codex
Minimum CLI version: 1.0.0. Supported on macOS, Linux and Windows.
Auth
- API key only — set
OPENAI_API_KEYin your environment.
Config file: ~/.codex/config.json.
Minimal run
adapters run codex --prompt "Write a unit test for utils.ts"
Notable flags
--model <id>— defaulto4-mini;codex-mini-latestalso available.--full-auto— emitted whenapprovalMode: 'yolo'.--quiet <prompt>— used by the adapter to stream prompt output.
Session files
- Location:
~/.codex/sessions/*.jsonl - Parsed via the standard JSONL session reader.
- Resume/fork supported by the adapter layer.
Plugins
Plugin support: yes. Codex has a plugin directory with @plugin-creator skill.
Plugin Management
adapters plugin install codex <plugin>
adapters plugin list codex
MCP Servers
adapters mcp install codex <mcp-server>
adapters mcp list codex
Registry: https://modelcontextprotocol.io for MCP servers.
Capabilities
Thinking models (o4-mini) with low/medium/high effort levels, tool calling with parallel calls, JSON / structured output, text streaming.
Known limitations
- No image input/output, no file attachments.
- No MCP or plugin ecosystem — bring-your-own tooling only.
- Only two bundled models; other Codex variants must be specified explicitly via
--model. - Project-level config is not supported (
supportsProjectConfig: false); configuration is global.
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.
- 2d ago First seen · 65 lines · 0 tokens per session scan B 56f73325b801
codex is an agent published in the GitHub repository a5c-ai/babysitter (1,757 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 399 tokens. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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