Git Worktree Isolation
jnMetaCode/superpowers-zh
Sets up an isolated workspace before feature work or plan execution, preferring native worktree tools and falling back to git worktree, with instructions in Chinese.
Run this git worktree's code in its own local server at https://slot-local.blot (slots a-e) so the operator can see and click through it while the main stack keeps running.
Install Preview
$ npx skills add blotcms/blot --skill preview -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install blotcms/blot preview --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/blotcms/blot.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/preview .claude/skills/preview && 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 "preview" agent skill from https://github.com/blotcms/blot/tree/master/.claude/skills/preview into .claude/skills/preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preview", 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/blotcms/blot/tree/master/.claude/skills/previewType 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 blotcms/blot --skill preview -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install blotcms/blot preview --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/blotcms/blot.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/preview .agents/skills/preview && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "preview" agent skill from https://github.com/blotcms/blot/tree/master/.claude/skills/preview into .agents/skills/preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preview", 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 blotcms/blot --skill preview -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install blotcms/blot preview --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/blotcms/blot.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/preview .cursor/skills/preview && 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 "preview" agent skill from https://github.com/blotcms/blot/tree/master/.claude/skills/preview into .cursor/skills/preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preview", 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/blotcms/blot.git --path .claude/skills/preview--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 blotcms/blot --skill preview -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install blotcms/blot preview --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/blotcms/blot.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/preview .gemini/skills/preview && 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 "preview" agent skill from https://github.com/blotcms/blot/tree/master/.claude/skills/preview into .gemini/skills/preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preview", 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 blotcms/blot previewInstalls 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 blotcms/blot --skill preview -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/blotcms/blot.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/preview .github/skills/preview && 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 "preview" agent skill from https://github.com/blotcms/blot/tree/master/.claude/skills/preview into .github/skills/preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preview", 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 blotcms/blot --skill preview -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install blotcms/blot preview --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/blotcms/blot.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/preview .opencode/skills/preview && 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 "preview" agent skill from https://github.com/blotcms/blot/tree/master/.claude/skills/preview into .opencode/skills/preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preview", 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
preview- GitHub stars
- 2k
- Token cost
- ~649 tokens
- SKILL.md length
- 330 words
- Files
- 1
- Skills in repo
- 7
- Repo updated
- First seen
- Licence
- AGPL-3.0
At a glance
Run this git worktree's code in its own local server at https://slot-local.blot (slots a-e) so the operator can see and click through it while the main stack keeps running.
- Works in 6 steps: Work out the page the operator should… → From the worktree run → Give the operator the printed Login URL… → …
- The operator asks to preview
- Calls npm and docker; reaches local.blot
- Let them try the current changes
What it does
Preview is an agent skill from blotcms/blot. Run this git worktree's code in its own local server at https://slot-local.blot (slots a-e) so the operator can see and click through it while the main stack keeps running. Use when the operator asks to preview, show, or let them try the current changes, or to "set up a preview" for a worktree.
Its SKILL.md is about 650 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Git worktrees. It works with Git. The repository describes itself as: Turns a folder into a website. The licence is AGPL-3.0.
When your agent uses it
- The operator asks to preview
- Let them try the current changes
- Set up a preview for a worktree
Example prompts
- “set up a preview”
- “/preview”
Requirements
- Docker
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Work out the page the operator should look at: the docs page, template
- From the worktree run
- Give the operator the printed Login URL (one-time, opens the dashboard)
- Edits to files in this worktree show up on the slot within seconds. Dashboard
- Do not use a slot to test sync, the scheduler or Redis-schema changes; only
- When the task is finished or the operator is done, run
What it can do on your machine
Read from SKILL.md and the folder at commit 9a0c75d. 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:
npmdocker
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
local.blot
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Preview loads about 649 tokens when it runs. Until then it costs about 76 tokens; SKILL.md has 330 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 passed
The automated check found no risky patterns in SKILL.md.
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 blotcms/blot at commit 9a0c75d, republished under its AGPL-3.0 licence (© blotcms). 330 words, ~649 tokens.
Download SKILL.mdSave it as
.claude/skills/preview/SKILL.md (or your agent's skills folder).- name
- preview
- description
- Run this git worktree's code in its own local server at https://slot-local.blot (slots a-e) so the operator can see and click through it while the main stack keeps running. Use when the operator asks to preview, show, or let them try the current changes, or to "set up a preview" for a worktree.
Preview this worktree
https://local.blot serves the main checkout, never a worktree. Do not ask the
operator to check the branch out; use a preview slot. Design and limits:
scripts/development/worktrees.md.
Work out the page the operator should look at: the docs page, template preview, dashboard page, or brochure page related to the task. Prefer the
https://local.blot/...URL of that page;preview.shrewrites it to the slot host.From the worktree run:
bash scripts/development/preview.sh up <url-or-path>If it prints a WARNING that nginx has no preview routing, stop and tell the operator to update the main checkout to current
masterand restart nginx. Ifhttps://local.blotis down it refuses; ask the operator to runnpm start. When the command runs inside a sandbox, its health check may be unable to reach an otherwise-runninglocal.blot; retry with host access when the environment supports it before concluding that the main stack is offline.Give the operator the printed Login URL (one-time, opens the dashboard) and the Work URL, as clickable links. Use
blot-node-<slot>in place ofblot-node-app-1for anydocker exec.local.blotis the main checkout;<slot>-local.blot(for example,b-local.blot) is the worktree preview. If Firefox reports that the host cannot be found and mentionsmozilla.cloudflare-dns.com, Secure DNS / DNS over HTTPS is bypassing the local resolver. Have the operator choose Always continue for this site or disable Secure DNS/use the system resolver, then reload the printed URL.Edits to files in this worktree show up on the slot within seconds. Dashboard changes (site settings, template edits) are written to the shared dev database and also show on
local.blot.Do not use a slot to test sync, the scheduler or Redis-schema changes; only the main stack runs those. SITE-template edits (
app/templates/source) do rebuild on a slot, but write to the shared dev Redis, so they also show onlocal.blot.When the task is finished or the operator is done, run
scripts/development/preview.sh downto release the slot (preview.sh lsshows who holds each one).
© blotcms, AGPL-3.0. 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 .claude/skills/preview of blotcms/blot.
Open the folder on GitHubat commit 9a0c75d
Compare with similar skills
Preview 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 |
|---|---|---|---|---|---|---|
| Preview this skillblotcms/blot | 2k | — | ~649 | Automated safety check: Pass | AGPL-3.0 | |
| Git Worktree IsolationjnMetaCode/superpowers-zh | 8.3k | 1 repos | ~982 | Automated safety check: Pass | MIT | |
| WorktreeAgentsMesh/AgentsMesh | 2.4k | — | ~553 | Automated safety check: Notes | Custom licence | |
| Cursor Composer Task DelegateChachamaru127/claude-code-harness | 3.2k | — | ~4.4k | Automated safety check: Notes | MIT | |
| Git Worktree Setupk8zdev/k8z | 155 | — | ~930 | Automated safety check: Pass | None | |
| New Featuremichaelshimeles/skills | 1.3k | 1 repos | ~699 | Automated safety check: Pass | None |
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Related
Works with
Categories
Questions about Preview
What does Preview do?
Run this git worktree's code in its own local server at https://slot-local.blot (slots a-e) so the operator can see and click through it while the main stack keeps running. Preview is an agent skill from blotcms/blot.blot (slots a-e) so the operator can see and click through it while the main stack keeps running.
When should I use Preview?
Preview fits situations like: the operator asks to preview; let them try the current changes; set up a preview for a worktree.
How do I install Preview in Claude Code?
Run `npx skills add blotcms/blot --skill preview -a claude-code`. Or copy the skill folder (.claude/skills/preview in blotcms/blot) into .claude/skills/preview in your project. Claude Code loads it when a task matches its description.
How do I install Preview in Codex?
Run `npx skills add blotcms/blot --skill preview -a codex`. Or copy the skill folder (.claude/skills/preview in blotcms/blot) into .agents/skills/preview in your project. Codex loads it when a task matches its description.
Can I use Preview 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 blotcms/blot --skill preview -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/preview, .gemini/skills/preview, .github/skills/preview and .opencode/skills/preview in your project.
What does Preview need to run?
Going by SKILL.md and its folder, Preview needs the command-line tools its instructions call (npm and docker). Our summary lists: Docker.
Does Preview access the network?
SKILL.md names 1 domain. In commands or code: local.blot; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is Preview safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Preview use?
Preview is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Preview use?
About 649 tokens (SKILL.md is roughly 2.6k 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 Preview?
Skills that share tags, products or a category with Preview: Git Worktree Isolation (jnMetaCode/superpowers-zh, 8.3k stars), Worktree (AgentsMesh/AgentsMesh, 2.4k stars), Cursor Composer Task Delegate (Chachamaru127/claude-code-harness, 3.2k stars) and Git Worktree Setup (k8zdev/k8z, 155 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Preview?
blotcms (a GitHub organization) maintains it in blotcms/blot, which has 1,983 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on October 7, 2026.
Source: blotcms/blot on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.