Ghost stack 5/6 — Node/graph model (unify-nodes, Phases 1–7)

.changeset/checks-review-on-graph.md

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+---
+"@anarchitecture/ghost": minor
+---
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+`ghost checks` and `ghost review` now route by graph ancestry and ground from the prose graph slice: grounding is the surface's gathered nodes by provenance (own / ancestor / edge), replacing the typed why/what (principles, contracts, patterns, exemplars) split — the why and what now live in each node's prose. `ghost checks` gains `--as <incarnation>` to filter grounding to one output form. Exemplar `path:` is dropped from grounding.

.changeset/cross-package-extends.md

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+---
+"@anarchitecture/ghost": minor
+---
+
+Add cross-package inheritance via `extends`. A package's `manifest.yml` can declare `extends: { <id>: <dir> }`, mapping another contract's identity to where it lives. Node refs then reference inherited context by identity, never path — `under: brand:core` or `relates: [{ to: brand:core-trust }]` (the `<package-id>:<node>` form replaces the earlier npm-style `<pkg>#<id>` ref grammar). Inherited nodes load read-only and flow into gather and validate like local ones. `ghost validate` resolves cross-package refs and reports unresolved refs, packages not declared in `extends`, identity mismatches, and cross-package cycles. This delivers the shared-brand story: one brand contract extended by many products, without copy-paste or merge. One level of `extends` in v1 (no transitive); location is an explicit relative dir (identity-based discovery is a future upgrade that keeps refs unchanged).

.changeset/facet-removal.md

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+---
+"@anarchitecture/ghost": minor
+---
+
+Remove the facet model — the graph is now the only fingerprint model. The `intent.yml`/`inventory.yml`/`composition.yml` schemas, the `GhostFingerprintDocument`, the facet→node load-time projection, and the dormant facet slice/grounding are deleted; the loader folds `nodes/*.md` + `surfaces.yml` directly into the graph. `ghost lint` and `ghost verify` are replaced by one `ghost validate` verb (artifact shape pass + node-graph pass: links resolve, one root, acyclic); `ghost emit` is removed. `ghost scan` now reports node/surface contribution instead of facet contribution. Legacy facet packages no longer load directly — `ghost validate`/load fail with guidance to run `ghost migrate`. Structured exemplar-path and evidence verification is dropped (evidence lives in node prose, per the prose-node model).

.changeset/gather-on-graph-incarnation.md

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+---
+"@anarchitecture/ghost": minor
+---
+
+`ghost gather` now composes its context slice by traversing the fingerprint node graph and emits nodes-by-provenance prose (own / ancestor / edge), and gains `--as <incarnation>` to filter the slice to one output form (e.g. email, billboard, voice) while always keeping essence (untagged) nodes.

.changeset/node-authoring.md

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+---
+"@anarchitecture/ghost": minor
+---
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+`ghost init` now scaffolds a node package (`manifest.yml` + `surfaces.yml` spine + a seed `nodes/*.md`) via a template registry (`--template <name>`, `default` for now) instead of emitting `intent.yml`/`inventory.yml`/`composition.yml`; the `--reference` flag is removed. `ghost migrate` now performs a one-way conversion of legacy/facet packages into `surfaces.yml` + `nodes/*.md` (the facet→node projection becomes the writer) and removes the old facet files. The authoring skill (`capture.md`, `SKILL.md`) teaches node authoring with intent/inventory/composition as authoring lenses rather than facet files.

.changeset/remove-compare-drift-fleet.md

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+---
+"@anarchitecture/ghost": minor
+---
+
+Remove `compare`, `drift`, `ack`, `track`, and `diverge` commands and the direct `fingerprint.md` machinery (parser, writer, semantic diff, decisions/dimensions, embeddings, perceptual prior). These rested on a quantified visual-design-system model (fixed dimensions + decision embeddings) that the context-graph reframe abandoned; the concepts are parked for a graph-native rethink (see docs/ideas/compare-drift-fleet-rethink.md). The `./compare` and `./drift` package subpaths and the root `compare`/`drift` exports are removed. `ghost lint` now validates `.ghost/` packages and node/surface/check artifacts only (direct `fingerprint.md` is no longer linted); a `nodes/*.md` file lints as a `ghost.node/v1` node.