Resolve canonical parties with campaign configuration

docs/config.md

@@ -69,9 +69,15 @@ remote state with an unsafe legacy identity must be migrated before use.
 - Pipeline defaults are applied before validation.
 - Campaign and session identities must agree.
 - Required stable files (`speakers_file`, `autocorrect_file`, `glossary_file`,
-  `players_file`, `party_file`) and the optional `spell_catalog_file` resolve
-  from session overrides when provided, otherwise from campaign defaults. An
-  empty or omitted session spell-catalog value inherits the campaign value.
+  `party_file`) and the optional `spell_catalog_file` resolve from session
+  overrides when provided, otherwise from campaign defaults. An empty or
+  omitted session spell-catalog value inherits the campaign value.
+- `party_file` is classified when pipeline and campaign configuration are
+  combined. A versioned [canonical party](integrations/party.md) is
+  campaign-owned, derives the players input internally, and forbids both a
+  separate `players_file` and a session `party_file` override. An unversioned
+  party remains a bounded legacy input and requires `players_file`; its normal
+  campaign/session overrides continue to apply.
 - Exactly one audio mode must be configured in session input:
   - local (`audio_dir` or `audio_files`), or
   - S3 (`audio_s3.prefix`).
@@ -433,8 +439,8 @@ integration.
 | `inputs.speakers_file` | string | Yes | stable input default |
 | `inputs.autocorrect_file` | string | Yes | stable input default |
 | `inputs.glossary_file` | string | Yes | stable input default |
-| `inputs.players_file` | string | Yes | stable input default |
-| `inputs.party_file` | string | Yes | stable input default |
+| `inputs.players_file` | string | Conditional | required only with an unversioned legacy `party_file`; forbidden for a canonical party |
+| `inputs.party_file` | string | Yes | stable campaign party source; relative paths resolve from `campaign.yml` |
 | `inputs.spell_catalog_file` | string | No | optional spell-catalog overlay default; required when a Notarius reference selects `narratio.input.spell_catalog` |
 
 ### Session
@@ -449,8 +455,8 @@ integration.
 | `inputs.speakers_file` | string | No | overrides campaign stable input |
 | `inputs.autocorrect_file` | string | No | overrides campaign stable input |
 | `inputs.glossary_file` | string | No | overrides campaign stable input |
-| `inputs.players_file` | string | No | overrides campaign stable input |
-| `inputs.party_file` | string | No | overrides campaign stable input |
+| `inputs.players_file` | string | No | legacy-party override; forbidden for a canonical party |
+| `inputs.party_file` | string | No | legacy-party override; forbidden for a canonical campaign party |
 | `inputs.spell_catalog_file` | string | No | overrides the optional campaign spell catalog; empty or omitted inherits the campaign value |
 | `inputs.audio_dir` | string | Conditional | local audio mode |
 | `inputs.audio_files[]` | list[string] | Conditional | local audio mode |

docs/integrations/README.md

@@ -21,6 +21,7 @@ focused stage documents.
 - [Audita](./audita.md): transcript polishing (`audita process`).
 - [Notarius](./notarius.md): complete pipeline execution and safe JSON bundle
   discovery (`notarius run`).
+- [Party](./party.md): canonical campaign roster input.
 - [Seriatim](./seriatim.md): merge, normalize, trim, and render operations.
 - [Scriptorium](./scriptorium.md): artifact generation and debug rendering
   (`scriptorium run|render`).

docs/integrations/party.md

@@ -0,0 +1,49 @@
+# Canonical Party Input
+
+`party.yml` is a campaign-owned roster input. Narratio recognizes the
+versioned `narratio.party.v1` document below when it resolves a pipeline,
+campaign, and session together.
+
+```yaml
+schema_version: narratio.party.v1
+
+characters:
+  arannis:
+    player:
+      name: Eric
+    character:
+      name: Arannis
+      alias:
+        - Ari
+        - The Grey Owl
+      classes:
+        - name: wizard
+          level: 8
+```
+
+`characters` is a non-empty mapping. Each key is a stable character ID using
+the configured-artifact key grammar: a lowercase ASCII letter followed by zero
+or more lowercase ASCII letters, digits, or underscores. Character order is
+preserved where roster order matters.
+
+Every entry has `player.name`, `character.name`, and a non-empty
+`character.classes` list. Class entries require a non-empty `name` and may
+include a positive integer `level`. The optional, intentionally singular
+`character.alias` field is a list. Names, aliases, and class names must be
+non-empty, trimmed display strings without control characters. Character names
+and aliases must be unique across the full roster under Unicode-aware
+case-insensitive comparison; player names may repeat.
+
+The document has exactly one YAML document and accepts no unknown fields. A
+wrong or malformed `schema_version` is an error.
+
+## Legacy migration boundary
+
+An unversioned party input remains supported only as opaque legacy reference
+material while campaigns migrate. It requires a separate `players_file` and
+retains the existing session override behavior. It cannot be mixed with a
+canonical party: canonical campaigns must omit `players_file`, and sessions
+must not override their party or players inputs.
+
+Use the canonical document for new campaigns. The configuration rules and
+source-relative path behavior are defined in the [Configuration Reference](../config.md).

docs/internal/configuration.md

@@ -52,6 +52,14 @@ download retain that exact pipeline object and its private provenance. Removing
 a temporary downloaded session file therefore cannot invalidate the resolved
 pipeline or campaign context.
 
+Campaign context construction also reads and classifies the campaign-owned
+party source through `ParseParty`. A canonical party retains its raw bytes and
+normalized roster in runtime-only `ResolvedParty` provenance, while a legacy
+party remains opaque. Canonical resolution creates a virtual
+`derived_from_party` players input and rejects competing campaign or session
+players files and session party overrides. The compact legacy compatibility
+path resolves the effective campaign/session party and players files together.
+
 ## Canonical Party Domain
 
 `ParseParty` is the package-owned boundary for classifying a party source.
@@ -103,3 +111,6 @@ confirming local session resolution retains the original pipeline. Other
 configuration tests continue to protect defaults and validation after assembly.
 `party_test.go` protects the versioned party schema, domain invariants, and
 deterministic players projection without involving campaign or runtime wiring.
+`party_resolution_test.go` protects campaign-owned party loading, canonical
+input restrictions, legacy overrides, source provenance, and virtual players
+input selection.

docs/roadmap/implementation.md

@@ -655,7 +655,7 @@ resolution.
 
 ## Stage 11 — Campaign Party Resolution And Isolated Legacy Mode
 
-**Status: Pending**
+**Status: Completed**
 
 ### Goal