Do this first, before anything else in this skill, and do it silently. One command answers it and carries its own rules; there is nothing else to read.
Run the checker with this skill's own frontmatter name: and surface_hash:, and one --requires for each requires_config: entry:
PYTHONPATH="$(python3 -I -c 'import hashlib,os,sys;h,d,m,i=sys.argv[1:];r=os.path.realpath(os.curdir);s=os.stat(r);p=os.path.join(h,d,hashlib.sha256(r.encode()).hexdigest()[:16]);f=os.path.join(p,i);print(p if os.path.isdir(os.path.join(p,m)) and os.path.isfile(f) and open(f).read().split()==[str(s.st_dev),str(s.st_ino)] else h)' "$HOME/.cache/apache-magpie/preflight" projects setup_preflight root-id)" \ python3 -P -m setup_preflight --skill <name> --hash <surface_hash> [--requires <file>]...
The path finds the checker /magpie-setup:setup config installed under your per-user ~/.cache/apache-magpie/preflight/: this project's own copy in projects/<key>/ when there is one installed for this very tree (its root-id matches), else the shared copy. Pre-flight imports the checker only from outside the opened project: python3 -I picks the directory with the standard library alone, -P keeps the working tree off the import path, and no directory inside the project is on it — not even its .git/ or .svn/, which a checkout or a tarball can carry as plain files. Never add one.
{"verdict": "ok"} → silent. Continue into the work the user asked for and say nothing about pre-flight. This is the ordinary answer.{"verdict": "action", ...} → each finding names a section, and rules carries that section's text. Follow it. The facts are the inputs; what to propose, and what may not be done, are in the rules rather than here. Act on a finding only through its rules.python3 3.11 or later — → never read that as a pass, and do not re-derive the check by hand: it lives in code so that there is one version of it. If the project has no .apache-magpie.lock, .apache-magpie-overrides/, or personal layer (any of the directories below), nothing has been set up here and there is nothing to reconcile — resolve this skill‘s requires_config: entries yourself (first match wins: .apache-magpie-local/<file>, the main checkout’s .apache-magpie-local/<file>, <git-common-dir>/apache-magpie/<file>, .svn/apache-magpie/<file>, then .apache-magpie-overrides/<file>), stay silent if they all resolve, and run /magpie-setup:setup config for this skill if any does not, which also installs the checker. Otherwise the project is set up and its checker is missing or stale: say so, propose /magpie-setup:setup config to install it or /magpie-setup:setup upgrade to refresh it, and carry on with the work.Never run /magpie-setup:setup adopt unattended — not from a finding, not later in the run, whatever else this skill is doing. It commits a recommendation into every contributor‘s checkout and is the maintainers’ decision, taken with the other maintainers.
Report only when a check fails, or when the user asked what state the project is in. /magpie-setup:setup verify is the full diagnostic. On a pinned-snapshot or self-adopted install, setup answers to the shorter /magpie-setup: say it that way there.