Worktree Stack

What it does

When your agent uses it

• An agent needs a running
• Playwright-ready Breeze stack for the current git worktree

Example prompts

• “/worktree-stack”

Requirements

• Docker
• A credential in RESEND_API_KEY
• A credential in MAILGUN_API_KEY

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

1. 1Bring up the stack (per-worktree isolated): pnpm wt-stack up
2. 2Read .breeze-stack.json at the worktree root for baseUrl, apiUrl,
3. 3Drive Playwright: pnpm wt-stack test -- tests/.spec.ts, or point the
4. 4Tear down: pnpm wt-stack down (removes volumes by default). Run it from

What it can do on your machine

Read from SKILL.md and the folder at commit 1f72bb7. 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:

  • docker
  • pnpm
  • jq

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use docker and pnpm, 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:

  • RESEND_API_KEY
  • MAILGUN_API_KEY

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Worktree Stack loads about 1.2k tokens when it runs. Until then it costs about 55 tokens; SKILL.md has 383 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~55

When it runs · the whole SKILL.md, loaded when a task matches

~1.2k

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

• NoteMentions a .env fileSKILL.md:23

  e v22.20.0 on PATH and a populated root `.env` (image refs).

• NoteMentions a .env fileSKILL.md:24

  - `.env.stack` pins `RESEND_API_KEY`, `MAILGUN_API_KEY` and `SMTP_HOST` to empty so a QA stack never sends real email ev

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 LanternOps/breeze at commit 1f72bb7, republished under its AGPL-3.0 licence (© LanternOps). 383 words, ~1,154 tokens.

name

worktree-stack

description

Use when an agent needs a running, seeded, Playwright-ready Breeze stack for the current git worktree. Brings up pg+redis+api+web+portal+caddy running the worktree's own code and emits a JSON descriptor.

# 1. What is still up, across ALL worktrees and sessions?
docker compose ls -a --format json \
  | jq -r '.[] | select(.ConfigFiles|test("breeze")) | "\(.Name)\t\(.Status)"'
docker ps -a --format '{{.Names}}\t{{.Status}}\t{{.Label "com.docker.compose.project"}}' \
  | grep -i breeze            # blank 3rd column = bare `docker run` container, no compose project

# 2. Tear down what YOU brought up, from the worktree that created it
pnpm wt-stack down                                    # this worktree's dev stack (drops volumes)
pnpm test-stack down                                  # this worktree's integration pg+redis
pnpm --filter @breeze/api test:docker:down            # the shared :5433 test stack (docker-compose.test.yml, no -p)
docker compose -f docker-compose.yml -f docker-compose.override.yml.dev down -v --remove-orphans
                                                      # a compose-mode stack — pass the same -f files you used for `up`

# 3. Anything left over (worktree deleted, branch renamed, another session's stack)
docker compose -p <name> down -v --remove-orphans     # <name> = first column of step 1; no -f needed
docker rm -f <container>                              # bare containers, e.g. breeze-<issue>-drift

# 4. Verify — both must print nothing
docker compose ls -a --format json | jq -r '.[] | select(.ConfigFiles|test("breeze")) | .Name'
docker ps -a --format '{{.Names}}' | grep -i breeze

docker compose ls -a --format json | jq -r '.[] | select(.ConfigFiles|test("breeze")) | .Name' \
  | xargs -r -I{} docker compose -p {} down -v --remove-orphans
docker ps -aq --filter name=breeze | xargs -r docker rm -f
docker network ls --format '{{.Name}}' | grep -i breeze | xargs -r docker network rm   # stray *-net networks

© LanternOps, 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/worktree-stack of LanternOps/breeze.

Open the folder on GitHubat commit 1f72bb7