Codex Plugin QA
code-yeongyu/oh-my-openagent
Tests the omo Codex plugin in an isolated CODEX_HOME with a local mock model, proving hooks fired through app-server notifications without touching ~/.codex.
Ship the current work — repo, uncommitted changes, .env files, and the live agent session — to another machine over Tailscale SSH, where the agent resumes in tmux and keeps working.
MITAuto-check: notes
Install Parcel
$ npx skills add 0xSero/parcels --skill parcel -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install 0xSero/parcels parcel --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/0xSero/parcels.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/parcel .claude/skills/parcel && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "parcel" agent skill from https://github.com/0xSero/parcels/tree/main/skills/parcel into .claude/skills/parcel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parcel", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/0xSero/parcels/tree/main/skills/parcelType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add 0xSero/parcels --skill parcel -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install 0xSero/parcels parcel --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/0xSero/parcels.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/parcel .agents/skills/parcel && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "parcel" agent skill from https://github.com/0xSero/parcels/tree/main/skills/parcel into .agents/skills/parcel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parcel", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add 0xSero/parcels --skill parcel -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install 0xSero/parcels parcel --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/0xSero/parcels.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/parcel .cursor/skills/parcel && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "parcel" agent skill from https://github.com/0xSero/parcels/tree/main/skills/parcel into .cursor/skills/parcel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parcel", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/0xSero/parcels.git --path skills/parcel--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add 0xSero/parcels --skill parcel -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install 0xSero/parcels parcel --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/0xSero/parcels.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/parcel .gemini/skills/parcel && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "parcel" agent skill from https://github.com/0xSero/parcels/tree/main/skills/parcel into .gemini/skills/parcel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parcel", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install 0xSero/parcels parcelInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add 0xSero/parcels --skill parcel -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/0xSero/parcels.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/parcel .github/skills/parcel && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "parcel" agent skill from https://github.com/0xSero/parcels/tree/main/skills/parcel into .github/skills/parcel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parcel", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add 0xSero/parcels --skill parcel -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install 0xSero/parcels parcel --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/0xSero/parcels.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/parcel .opencode/skills/parcel && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "parcel" agent skill from https://github.com/0xSero/parcels/tree/main/skills/parcel into .opencode/skills/parcel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parcel", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
parcel- GitHub stars
- 175
- Token cost
- ~740 tokens
- SKILL.md length
- 343 words
- Files
- 1
- Skills in repo
- 1
- Repo updated
- First seen
- Licence
- MIT
At a glance
Ship the current work — repo, uncommitted changes, .env files, and the live agent session — to another machine over Tailscale SSH, where the agent resumes in tmux and keeps working.
- Works in 4 steps: Write intent into HANDOFF.md at the repo… → Ship. From inside the repo → Verify it is actually running — never… → …
- The user says /parcel
- SKILL.md covers Workflow, Fixing missing auth (from… and Notes
- Calls claude, codex and ssh; needs CLAUDE_CODE_OAUTH_TOKEN and XAI_API_KEY
What it does
Parcel is an agent skill from 0xSero/parcels. Ship the current work — repo, uncommitted changes, .env files, and the live agent session — to another machine over Tailscale SSH, where the agent resumes in tmux and keeps working. Use when the user says /parcel, "hand off to <machine", "send this work to another machine", "keep this running after I close the laptop", or wants to move a coding session (Claude Code, Codex, pi, Droid, or Grok Build) to a remote box.
Its SKILL.md is about 740 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with tmux. The repository describes itself as: Ship your repo + live coding-agent session (Claude Code / Codex / pi / Droid) to another machine over Tailscale; it resumes in tmux and keeps working. The licence is MIT.
When your agent uses it
- The user says /parcel
- Hand off to <machine
- Send this work to another machine
- Keep this running after I close the laptop
Example prompts
- “hand off to <machine”
- “send this work to another machine”
- “keep this running after I close the laptop”
- “/parcel”
Requirements
- A credential in CLAUDE_CODE_OAUTH_TOKEN
- A credential in XAI_API_KEY
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Write intent into HANDOFF.md at the repo root before shipping. This is
- Ship. From inside the repo
- Verify it is actually running — never assume. parcel status
- Tell the user how to reach it
What it can do on your machine
Read from SKILL.md and the folder at commit 7b23c72. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
claudecodexssh
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use ssh, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
CLAUDE_CODE_OAUTH_TOKENXAI_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Parcel loads about 740 tokens when it runs. Until then it costs about 107 tokens; SKILL.md has 343 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NoteMentions a .env fileSKILL.md:3
urrent work — repo, uncommitted changes, .env files, and the live agent session — to another machine over Tailscale SSH, - NoteMentions a .env fileSKILL.md:60
e ships — including untracked files and `.env`s — so
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from 0xSero/parcels at commit 7b23c72, republished under its MIT licence (© 0xSero). 343 words, ~740 tokens.
Download SKILL.mdSave it as
.claude/skills/parcel/SKILL.md (or your agent's skills folder).- name
- parcel
- description
- Ship the current work — repo, uncommitted changes, .env files, and the live agent session — to another machine over Tailscale SSH, where the agent resumes in tmux and keeps working. Use when the user says /parcel, "hand off to <machine>", "send this work to another machine", "keep this running after I close the laptop", or wants to move a coding session (Claude Code, Codex, pi, Droid, or Grok Build) to a remote box.
- license
- MIT
Parcel — hand off work to another machine
The parcel CLI is on PATH. Targets are machines defined in
~/.parcels/targets/<name>.conf; list them with parcel targets.
Workflow
Write intent into
HANDOFF.mdat the repo root before shipping. This is the most valuable part of the handoff — the remote agent (possibly a different one) reads it first. Include:- what you were working on and why
- current state (what works, what's verified, what's mid-flight)
- concrete next steps, in order
- known gotchas and how to verify progress
Preserve any existing
## Machine state (auto-generated by parcelsection — parcel regenerates it on every send.Ship. From inside the repo:
parcel send <target> --agent <claude|codex|pi|droid|grok> [--session <id>]- If you are Claude Code, your session id is the UUID in your scratchpad
path (
.../<uuid>/scratchpad). If you are Grok Build, it is the session directory name under~/.grok/sessions/<encoded-cwd>/<uuid>/. If unsure, omit--session— parcel picks the newest session for this cwd. --agent grok(alias:grok-build) transplants a Grok Build session.--prompt "..."steers what the remote agent does first (default: read HANDOFF.md and continue).--idleships without launching anything.
- If you are Claude Code, your session id is the UUID in your scratchpad
path (
Verify it is actually running — never assume.
parcel status <target>tails the remote tmux pane; you should see the agent producing output. If the launch failed, runparcel doctor <target>and report exactly what is missing.Tell the user how to reach it:
ssh -t <host> tmux attach -t parcel-<repo-name>.
Show full SKILL.md (119 more words)Show less
Fixing missing auth (from parcel doctor)
- claude — user runs
claude loginonce on the target, or mints a token on an authed machine withclaude setup-tokenand setsCLAUDE_CODE_OAUTH_TOKENin the target's shell profile. - codex / pi / grok —
parcel auth <target>copies the credential files. Grok alternative: setXAI_API_KEYon the target, or rungrok login. - droid — user runs
droidonce on the target to log in.
Notes
- Only git repos can be parceled (
parcel sendruns from inside the repo). - The whole working tree ships — including untracked files and
.envs — so warn the user before sending a repo with secrets to a shared machine. - Re-sending the same repo overwrites the remote copy (rsync --delete) and restarts the tmux session.
© 0xSero, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/parcel of 0xSero/parcels.
Open the folder on GitHubat commit 7b23c72
Compare with similar skills
Parcel next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Parcel this skill0xSero/parcels | 175 | — | ~740 | Automated safety check: Notes | MIT | |
| Codex Plugin QAcode-yeongyu/oh-my-openagent | 70k | 1 repos | ~1.9k | Automated safety check: Pass | Custom licence | |
| Tmuxopenclaw/openclaw | 392k | 2 repos | ~640 | Automated safety check: Pass | MIT | |
| 1passwordtrpc-group/trpc-agent-go | 1.8k | 15 repos | ~656 | Automated safety check: Pass | Apache-2.0 | |
| CodeGraph Agent Evalcolbymchenry/codegraph | 73k | — | ~950 | Automated safety check: Pass | MIT | |
| Tmuxtrpc-group/trpc-agent-go | 1.8k | 24 repos | ~868 | Automated safety check: Pass | Apache-2.0 |
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openclaw/openclaw
Control tmux sessions/panes for interactive CLIs: list, capture output, send keys, paste text, monitor prompts.
1password
trpc-group/trpc-agent-go
Set up and use 1Password CLI (op). An agent skill from trpc-group/trpc-agent-go.
CodeGraph Agent Eval
colbymchenry/codegraph
Benchmarks how much CodeGraph helps a coding agent on a real repository, comparing runs with and without it for a chosen local or published version.
Tmux
trpc-group/trpc-agent-go
Remote-control tmux sessions for interactive CLIs by sending keystrokes and scraping pane output.
CodexBar Live QA
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Related
Works with
Questions about Parcel
What does Parcel do?
Ship the current work — repo, uncommitted changes, .env files, and the live agent session — to another machine over Tailscale SSH, where the agent resumes in tmux and keeps working. Parcel is an agent skill from 0xSero/parcels.env files, and the live agent session — to another machine over Tailscale SSH, where the agent resumes in tmux and keeps working.
When should I use Parcel?
Parcel fits situations like: the user says /parcel; hand off to <machine; send this work to another machine; keep this running after I close the laptop.
How do I install Parcel in Claude Code?
Run `npx skills add 0xSero/parcels --skill parcel -a claude-code`. Or copy the skill folder (skills/parcel in 0xSero/parcels) into .claude/skills/parcel in your project. Claude Code loads it when a task matches its description.
How do I install Parcel in Codex?
Run `npx skills add 0xSero/parcels --skill parcel -a codex`. Or copy the skill folder (skills/parcel in 0xSero/parcels) into .agents/skills/parcel in your project. Codex loads it when a task matches its description.
Can I use Parcel in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add 0xSero/parcels --skill parcel -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/parcel, .gemini/skills/parcel, .github/skills/parcel and .opencode/skills/parcel in your project.
What does Parcel need to run?
Going by SKILL.md and its folder, Parcel needs the command-line tools its instructions call (claude, codex and ssh) and credentials named CLAUDE_CODE_OAUTH_TOKEN and XAI_API_KEY. Our summary lists: A credential in CLAUDE_CODE_OAUTH_TOKEN; A credential in XAI_API_KEY.
Does Parcel access the network?
SKILL.md contains no URLs. Its commands use ssh, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Parcel safe to install?
Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Parcel use?
Parcel is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Parcel use?
About 740 tokens (SKILL.md is roughly 3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Parcel?
Skills that share tags, products or a category with Parcel: Codex Plugin QA (code-yeongyu/oh-my-openagent, 70k stars), Tmux (openclaw/openclaw, 392k stars), 1password (trpc-group/trpc-agent-go, 1.8k stars) and CodeGraph Agent Eval (colbymchenry/codegraph, 73k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Parcel?
0xSero (a GitHub user) maintains it in 0xSero/parcels, which has 175 GitHub stars. The repository was last updated on September 3, 2026.
Source: 0xSero/parcels on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.