Simplify downstream tool configuration

README.md

@@ -162,21 +162,40 @@ Archive run-upload details and boundaries are documented in [docs/archive-storag
 - `transcripts/normalized.json`: Seriatim-normalized transcript from the normalize stage
 - `transcripts/trimmed.json`: gameplay-only normalized polished transcript from trim stage
 
+## Seriatim Configuration
+
+`pipeline.seriatim` configures the Seriatim subprocess adapter used by `merge`, `normalize`, and `trim`.
+
+Minimal behavior:
+
+- `pipeline.seriatim` may be omitted entirely.
+- when omitted, Narratio defaults to:
+  - `binary: seriatim`
+  - `timeout: 10m`
+  - `output_schema: seriatim-intermediate`
+  - `coalesce_gap: 3.0`
+  - `report: true`
+
+Optional overrides in `pipeline.seriatim` continue to work, including explicit binary paths and advanced `env` tuning values.
+
 ## Audita Configuration
 
 `pipeline.audita` configures the real Audita subprocess adapter used by `polish`.
 
-Required:
+Minimal behavior:
 
-- `binary`
-- `timeout`
-- `base_url`
-- `model`
+- `pipeline.audita` may be omitted entirely.
+- when omitted, Narratio defaults to:
+  - `binary: audita`
+  - `timeout: 3h`
+  - `report: true`
 
 Optional:
 
 - `llm_api_key_env` (when set, Narratio requires that env var and passes it to Audita as `AUDITA_LLM_API_KEY`)
 - `modules` override list (when empty/omitted, Narratio does not pass `--modules`)
+- `base_url` (when omitted, Narratio does not pass `--base-url`; Audita runtime defaults/config may apply)
+- `model` (when omitted, Narratio does not pass `--model`; Audita runtime defaults/config may apply)
 - `transcript_description`
 - `config_path`
 - `output_schema` (`bare-segments` or `audita-v1`)
@@ -187,7 +206,7 @@ Optional:
 - `validation_llm_concurrency` (> 0 when provided)
 - `report` (defaults to `true`)
 
-Narratio passes only configured optional Audita flags. Omitted optional values are left to Audita runtime defaults.
+Narratio passes only configured optional Audita flags. Omitted optional values are left to Audita runtime defaults/config.
 
 ## Normalize Configuration
 
@@ -282,7 +301,7 @@ Render-debug files are diagnostics and are not treated as canonical stage output
 
 Key points:
 
-- `scriptorium.binary` is required when section is present
+- `scriptorium.binary` defaults to `scriptorium` when section is present
 - `scriptorium.config_path` is optional
 - `scriptorium.timeout` defaults to `10m` when omitted
 - `scriptorium.render_debug` enables render diagnostics globally
@@ -370,6 +389,7 @@ Expected session output paths:
 Starter files:
 
 - `examples/pipeline.minimal.yml`
+- `examples/pipeline.audita-overrides.yml`
 - `examples/session.minimal.yml`
 - `examples/session.template.yml`
 - `examples/speakers.yml`