Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add LeeJuOh/claude-code-zero/plugin install codex-advisorWrote 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/leejuoh/claude-code-zero/codex-transfer)<a href="https://agentmods.dev/skills/leejuoh/claude-code-zero/codex-transfer"><img src="https://agentmods.dev/badge/skills/leejuoh/claude-code-zero/codex-transfer/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/leejuoh/claude-code-zero/codex-transfer"><img src="https://agentmods.dev/badge/skills/leejuoh/claude-code-zero/codex-transfer.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 | $0.00025 | $0.01280 |
| Opus 5.5 | $0.00010 | $0.00512 |
| Sonnet 5.5 | $0.00005 | $0.00256 |
| Haiku 4.5 | $0.00003 | $0.00128 |
Grade A, and why
codex-transfer 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.
How it starts
The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Codex Session Transfer
One-way handoff. Unlike every other codex-advisor skill, there is no double-check phase — once the transfer completes, work continues in Codex outside Claude Code, so there is nothing left here to classify. The wrapper's job is whitelisting, error taxonomy, and disable-parity — not verification.
Phase 1: Analyze
Whitelist for this skill: --source <path>, --json. Nothing else
— transfer has no prompt, so there is no focus text or model/effort to
route.
--source <path>— explicit Claude session.jsonlto import. Optional; when omitted the companion falls back to theCODEX_COMPANION_TRANSCRIPT_PATHenv var, which codex-advisor's own SessionStart hook (hooks/session-start.mjs) sets automatically — whether or not the Official plugin itself is enabled.--json— when the user passes this, show them the raw JSON payload in Phase 3 instead of the friendly summary: add--show-jsonto the script call. This is independent of the--jsonthe script always passes to the companion, which is for our own parsing.- Unrecognized token (any other flag, or free-standing text) →
AskUserQuestion. Transfer has no positional argument — the companion silently discards anything it doesn't recognize as--source/--cwd/--json(handleTransferdestructures onlyoptions, neverpositionals), so passing it through would do nothing rather than corrupt a prompt. Still don't forward it: ask what the user meant. If it looks like a task description, suggest/codex-rescueinstead — transfer moves the whole session, it doesn't run a task.
Phase 2: Invoke
Single synchronous call — no --wait/--background, no Pattern A/B.
The companion's own import timeout is 2 minutes
(EXTERNAL_AGENT_IMPORT_TIMEOUT_MS in lib/codex.mjs), so give the
Bash tool call itself a timeout comfortably above that (e.g.
150000) — a shorter tool-side timeout could kill the process right at
the companion's own deadline and mask its real error message.
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.
- 9d ago Changed · -10 lines · -61 tokens per session 3384abc602cd
- 1mo ago First seen · 89 lines · 86 tokens per session scan A 6087728ddf87
codex-transfer is a skill published in the GitHub repository LeeJuOh/claude-code-zero (52 stars, last pushed 3d ago), licensed MIT. It adds 25 tokens to every session and 1,280 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 2026-08-30.
Other skills, from other repositories
dcf-model
Build discounted cash flow valuation workbooks in Excel.
mle-workflow
Production machine-learning engineering workflow for data contracts, reproducible training, model evaluation, deployment, monitoring, and rollback. Use when building, reviewing, or hardening ML systems beyond one-off notebooks.
autonomous-loops
Patterns and architectures for autonomous Claude Code loops — from simple sequential pipelines to RFC-driven multi-agent DAG systems.
ascii-video
ASCII video: convert video/audio to colored ASCII MP4/GIF.
grounded-citations
Ground answers and documents in cited, verifiable sources.
hermes-agent-skill-authoring
Author in-repo SKILL.md files: frontmatter and structure.