Adds a curated, Pi-native, skills+prompts-only profile at pi/core/ for downstream packagers that mirror GitHub Releases.
- manifests/pi-core.json: explicit include lists, per-item exclusion reasons, curation rules, safety allowlists; every root skill and command must be classified.
- scripts/build-pi-core.js regenerates pi/core deterministically (package.json from VERSION, LICENSE, README.md, CURATION.md, skills/, commands/); --check fails CI on drift. council is renamed ecc-council inside pi/core only.
- Safety checks: no callable endpoints outside the allowlist, no npx/curl|sh/pip install, no secrets, no absolute home paths, no symlinks, valid frontmatter, no duplicate names.
- CI: build + drift check and an offline Pi CLI load test of pi/core.
- Release: VERSION, package.json and pi/core/package.json at 2.2.2, CHANGELOG, tag-triggered release verification, and a two-week cadence in CONTRIBUTING.md.
pi/core: 123 of 293 skills and 24 of 94 commands; 35,006 characters of skill description text.
Account for Polish docs metadata, the Plankton resource update and five scientific skill names. Preserve the same 32 covered skills, 206 phrases and manual-curation provenance.
Registry-Proof-SHA256: 8d1a1116e5e2bcc8df9d06e38f1b00ab88af6577a3db2c4ebb2d1bb6e390a209