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 skills add Luohaothu/everything-codex --skill sessionsgit clone --depth 1 https://github.com/Luohaothu/everything-codexWrote 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.
[](https://agentmods.dev/skills/luohaothu/everything-codex/sessions)<a href="https://agentmods.dev/skills/luohaothu/everything-codex/sessions"><img src="https://agentmods.dev/badge/skills/luohaothu/everything-codex/sessions/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.
<a href="https://agentmods.dev/skills/luohaothu/everything-codex/sessions"><img src="https://agentmods.dev/badge/skills/luohaothu/everything-codex/sessions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00023 | $0.00215 |
| Opus 5.5 | $0.00009 | $0.00086 |
| Sonnet 5.5 | $0.00005 | $0.00043 |
| Haiku 4.5 | $0.00002 | $0.00021 |
Grade A, and why
sessions 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 1mo 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.
What it actually says
Sessions Skill
Browse and manage Codex CLI session history.
Usage
/sessions # List recent sessions
/sessions list # Same as above
/sessions info <id> # Show session details
Session Storage
Codex stores session logs in its native format. Sessions contain:
- Conversation history
- Tool invocations and results
- File changes made during the session
- Timestamps and metadata
List Sessions
Display recent sessions with metadata:
- Session ID (short hash)
- Date and time
- Duration
- Working directory
Session Info
Show details for a specific session:
- Full session ID
- Start/end timestamps
- Files modified
- Summary of work done
Tips
- Use short IDs (first 6-8 characters) for convenience
- Sessions are stored chronologically
- Review past sessions before resuming related work
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.
- 1mo ago First seen · 47 lines · 23 tokens per session scan A a428703b82c9
sessions is a skill published in the GitHub repository Luohaothu/everything-codex (25 stars, last pushed 2mo ago), licensed MIT. It adds 23 tokens to every session and 215 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-03.
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