Add Seriatim configuration contract

README.md

@@ -16,6 +16,18 @@ WhisperX config contract in `pipeline.yml`:
 - required: `whisperx.transcribe_url`
 - defaulted when omitted: `whisperx.language` (`en`), `whisperx.timeout` (`30m`), `whisperx.retries` (`3`), `whisperx.retry_delay` (`2s`), `whisperx.concurrency` (`2`)
 
+Seriatim config contract in `pipeline.yml`:
+
+- required: `seriatim.binary` (name or path; existence is checked at execution time, not config validation time)
+- defaulted when omitted: `seriatim.timeout` (`10m`), `seriatim.output_schema` (`seriatim-intermediate`), `seriatim.coalesce_gap` (`3.0`), `seriatim.report` (`true`)
+- allowed `seriatim.output_schema` values: `seriatim-minimal`, `seriatim-intermediate`, `seriatim-full`
+- optional tuning: `seriatim.env.*` (`overlap_word_run_gap`, `overlap_word_run_reorder_window`, `backchannel_max_duration`, `filler_max_duration`) must be `> 0` when provided
+
+`speakers.yml` note:
+
+- use Seriatim’s documented `match:` format (not the legacy direct mapping style used by older scripts/scaffolds)
+- TODO: add a concrete `speakers.yml` example once the Seriatim README/spec is vendored or linked in-repo.
+
 Decoding is strict (`KnownFields(true)`), so unknown YAML fields fail fast.
 
 Example minimal files are available under `examples/`:

architecture.md

@@ -115,6 +115,15 @@ WhisperX config keys:
 - `pipeline.whisperx.retry_delay` (default: `2s`)
 - `pipeline.whisperx.concurrency` (default: `2`)
 
+Seriatim config keys:
+
+- `pipeline.seriatim.binary` (required)
+- `pipeline.seriatim.timeout` (default: `10m`)
+- `pipeline.seriatim.output_schema` (default: `seriatim-intermediate`; allowed: `seriatim-minimal|seriatim-intermediate|seriatim-full`)
+- `pipeline.seriatim.coalesce_gap` (default: `3.0`, must be `>= 0`)
+- `pipeline.seriatim.report` (default: `true`)
+- optional tuning under `pipeline.seriatim.env.*` (must be `> 0` when provided)
+
 Validation currently enforces:
 
 - `pipeline.workspace.root` is required.
@@ -122,6 +131,11 @@ Validation currently enforces:
 - `pipeline.whisperx.timeout` and `pipeline.whisperx.retry_delay` must parse as Go durations.
 - `pipeline.whisperx.retries` must be `>= 0`.
 - `pipeline.whisperx.concurrency` must be `> 0`.
+- `pipeline.seriatim.binary` is required.
+- `pipeline.seriatim.timeout` must parse as Go duration.
+- `pipeline.seriatim.output_schema` must be one of `seriatim-minimal|seriatim-intermediate|seriatim-full`.
+- `pipeline.seriatim.coalesce_gap` must be `>= 0`.
+- optional `pipeline.seriatim.env.*` values must be `> 0` when provided.
 - `session.session_id` is required.
 - `session.inputs.speakers_file`, `autocorrect_file`, `glossary_file` are required.
 - At least one audio source: `session.inputs.audio_dir` or non-empty `session.inputs.audio_files`.

examples/pipeline.minimal.yml

@@ -13,7 +13,16 @@ whisperx:
   concurrency: 2
 
 seriatim:
-  timeout: 30s
+  binary: "seriatim"
+  timeout: "10m"
+  output_schema: "seriatim-intermediate"
+  coalesce_gap: 3.0
+  report: true
+  env:
+    overlap_word_run_gap: 1.0
+    overlap_word_run_reorder_window: 1.0
+    backchannel_max_duration: 2.0
+    filler_max_duration: 1.25
 
 audita:
   timeout: 1h

internal/app/commands_test.go

@@ -207,7 +207,11 @@ whisperx:
   retry_delay: 1ms
   concurrency: 1
 seriatim:
-  timeout: 30s
+  binary: seriatim
+  timeout: 10m
+  output_schema: seriatim-intermediate
+  coalesce_gap: 3.0
+  report: true
 audita:
   timeout: 1h
 analyzer:

internal/config/config.go

@@ -52,9 +52,20 @@ type WhisperXConfig struct {
 
 // SeriatimConfig configures seriatim adapter settings.
 type SeriatimConfig struct {
-	BinaryPath string   `yaml:"binary_path"`
+	Binary       string            `yaml:"binary"`
 	Timeout      string            `yaml:"timeout"`
-	Args       []string `yaml:"args"`
+	OutputSchema string            `yaml:"output_schema"`
+	CoalesceGap  *float64          `yaml:"coalesce_gap"`
+	Report       *bool             `yaml:"report"`
+	Env          SeriatimEnvConfig `yaml:"env"`
+}
+
+// SeriatimEnvConfig configures optional advanced seriatim environment tuning.
+type SeriatimEnvConfig struct {
+	OverlapWordRunGap           *float64 `yaml:"overlap_word_run_gap"`
+	OverlapWordRunReorderWindow *float64 `yaml:"overlap_word_run_reorder_window"`
+	BackchannelMaxDuration      *float64 `yaml:"backchannel_max_duration"`
+	FillerMaxDuration           *float64 `yaml:"filler_max_duration"`
 }
 
 // AuditaConfig configures audita adapter settings.

internal/config/load.go

@@ -82,6 +82,7 @@ func applyPipelineDefaults(cfg *PipelineConfig) {
 		return
 	}
 	applyWhisperXDefaults(&cfg.WhisperX)
+	applySeriatimDefaults(&cfg.Seriatim)
 }
 
 func applyWhisperXDefaults(cfg *WhisperXConfig) {
@@ -109,3 +110,31 @@ func intPtr(v int) *int {
 	p := v
 	return &p
 }
+
+func applySeriatimDefaults(cfg *SeriatimConfig) {
+	if cfg == nil {
+		return
+	}
+	if cfg.Timeout == "" {
+		cfg.Timeout = "10m"
+	}
+	if cfg.OutputSchema == "" {
+		cfg.OutputSchema = "seriatim-intermediate"
+	}
+	if cfg.CoalesceGap == nil {
+		cfg.CoalesceGap = float64Ptr(3.0)
+	}
+	if cfg.Report == nil {
+		cfg.Report = boolPtr(true)
+	}
+}
+
+func float64Ptr(v float64) *float64 {
+	p := v
+	return &p
+}
+
+func boolPtr(v bool) *bool {
+	p := v
+	return &p
+}

internal/config/load_validate_test.go

@@ -23,7 +23,7 @@ func TestLoadAndValidate(t *testing.T) {
 whisperx:
   transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
 seriatim:
-  timeout: 30s
+  binary: seriatim
 audita:
   timeout: 1h
 analyzer:
@@ -93,6 +93,8 @@ unknown_field: true
   root: /tmp/narratio
 whisperx:
   transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
+seriatim:
+  binary: seriatim
 `,
 			sessionYAML: `session_id: ""
 inputs:
@@ -108,6 +110,8 @@ inputs:
 			pipelineYAML: `workspace:
   root: /tmp/narratio
 whisperx:
+seriatim:
+  binary: seriatim
 `,
 			sessionYAML: `session_id: 2026-05-03
 inputs:
@@ -124,6 +128,8 @@ inputs:
   root: /tmp/narratio
 whisperx:
   transcribe_url: ://
+seriatim:
+  binary: seriatim
 `,
 			sessionYAML: `session_id: 2026-05-03
 inputs:
@@ -141,6 +147,8 @@ inputs:
 whisperx:
   transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
   timeout: definitely-not-a-duration
+seriatim:
+  binary: seriatim
 `,
 			sessionYAML: `session_id: 2026-05-03
 inputs:
@@ -158,6 +166,8 @@ inputs:
 whisperx:
   transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
   retry_delay: not-a-duration
+seriatim:
+  binary: seriatim
 `,
 			sessionYAML: `session_id: 2026-05-03
 inputs:
@@ -175,6 +185,8 @@ inputs:
 whisperx:
   transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
   retries: -1
+seriatim:
+  binary: seriatim
 `,
 			sessionYAML: `session_id: 2026-05-03
 inputs:
@@ -192,6 +204,8 @@ inputs:
 whisperx:
   transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
   concurrency: 0
+seriatim:
+  binary: seriatim
 `,
 			sessionYAML: `session_id: 2026-05-03
 inputs:
@@ -202,6 +216,140 @@ inputs:
 `,
 			wantValidate: "pipeline config \"pipeline.yml\" invalid: pipeline.whisperx.concurrency must be > 0",
 		},
+		{
+			name: "unknown seriatim field fails",
+			pipelineYAML: `workspace:
+  root: /tmp/narratio
+whisperx:
+  transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
+seriatim:
+  binary: seriatim
+  bogus: true
+`,
+			sessionYAML: `session_id: 2026-05-03
+inputs:
+  audio_dir: ./audio
+  speakers_file: ./speakers.yml
+  autocorrect_file: ./autocorrect.yml
+  glossary_file: ./glossary.yml
+`,
+			wantLoadErr: "strict decode failed",
+		},
+		{
+			name: "unknown seriatim env field fails",
+			pipelineYAML: `workspace:
+  root: /tmp/narratio
+whisperx:
+  transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
+seriatim:
+  binary: seriatim
+  env:
+    unknown_knob: 1.0
+`,
+			sessionYAML: `session_id: 2026-05-03
+inputs:
+  audio_dir: ./audio
+  speakers_file: ./speakers.yml
+  autocorrect_file: ./autocorrect.yml
+  glossary_file: ./glossary.yml
+`,
+			wantLoadErr: "strict decode failed",
+		},
+		{
+			name: "missing seriatim binary fails",
+			pipelineYAML: `workspace:
+  root: /tmp/narratio
+whisperx:
+  transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
+seriatim:
+  timeout: 10m
+`,
+			sessionYAML: `session_id: 2026-05-03
+inputs:
+  audio_dir: ./audio
+  speakers_file: ./speakers.yml
+  autocorrect_file: ./autocorrect.yml
+  glossary_file: ./glossary.yml
+`,
+			wantValidate: "pipeline config \"pipeline.yml\" invalid: pipeline.seriatim.binary is required",
+		},
+		{
+			name: "invalid seriatim timeout fails",
+			pipelineYAML: `workspace:
+  root: /tmp/narratio
+whisperx:
+  transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
+seriatim:
+  binary: seriatim
+  timeout: not-a-duration
+`,
+			sessionYAML: `session_id: 2026-05-03
+inputs:
+  audio_dir: ./audio
+  speakers_file: ./speakers.yml
+  autocorrect_file: ./autocorrect.yml
+  glossary_file: ./glossary.yml
+`,
+			wantValidate: "pipeline config \"pipeline.yml\" invalid: pipeline.seriatim.timeout must be a valid duration",
+		},
+		{
+			name: "invalid seriatim output schema fails",
+			pipelineYAML: `workspace:
+  root: /tmp/narratio
+whisperx:
+  transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
+seriatim:
+  binary: seriatim
+  output_schema: invalid-schema
+`,
+			sessionYAML: `session_id: 2026-05-03
+inputs:
+  audio_dir: ./audio
+  speakers_file: ./speakers.yml
+  autocorrect_file: ./autocorrect.yml
+  glossary_file: ./glossary.yml
+`,
+			wantValidate: "pipeline config \"pipeline.yml\" invalid: pipeline.seriatim.output_schema must be one of: seriatim-minimal, seriatim-intermediate, seriatim-full",
+		},
+		{
+			name: "negative seriatim coalesce gap fails",
+			pipelineYAML: `workspace:
+  root: /tmp/narratio
+whisperx:
+  transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
+seriatim:
+  binary: seriatim
+  coalesce_gap: -0.1
+`,
+			sessionYAML: `session_id: 2026-05-03
+inputs:
+  audio_dir: ./audio
+  speakers_file: ./speakers.yml
+  autocorrect_file: ./autocorrect.yml
+  glossary_file: ./glossary.yml
+`,
+			wantValidate: "pipeline config \"pipeline.yml\" invalid: pipeline.seriatim.coalesce_gap must be >= 0",
+		},
+		{
+			name: "invalid seriatim env float fails",
+			pipelineYAML: `workspace:
+  root: /tmp/narratio
+whisperx:
+  transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
+seriatim:
+  binary: seriatim
+  env:
+    overlap_word_run_gap: 0
+`,
+			sessionYAML: `session_id: 2026-05-03
+inputs:
+  audio_dir: ./audio
+  speakers_file: ./speakers.yml
+  autocorrect_file: ./autocorrect.yml
+  glossary_file: ./glossary.yml
+`,
+			wantValidate: "pipeline config \"pipeline.yml\" invalid: pipeline.seriatim.env.overlap_word_run_gap must be > 0 when provided",
+		},
 	}
 
 	for _, tt := range tests {
@@ -247,6 +395,18 @@ inputs:
 				if cfg.Pipeline.WhisperX.Concurrency == nil || *cfg.Pipeline.WhisperX.Concurrency != 2 {
 					t.Fatalf("whisperx.concurrency = %v, want 2", cfg.Pipeline.WhisperX.Concurrency)
 				}
+				if cfg.Pipeline.Seriatim.Timeout != "10m" {
+					t.Fatalf("seriatim.timeout = %q, want %q", cfg.Pipeline.Seriatim.Timeout, "10m")
+				}
+				if cfg.Pipeline.Seriatim.OutputSchema != "seriatim-intermediate" {
+					t.Fatalf("seriatim.output_schema = %q, want %q", cfg.Pipeline.Seriatim.OutputSchema, "seriatim-intermediate")
+				}
+				if cfg.Pipeline.Seriatim.CoalesceGap == nil || *cfg.Pipeline.Seriatim.CoalesceGap != 3.0 {
+					t.Fatalf("seriatim.coalesce_gap = %v, want 3.0", cfg.Pipeline.Seriatim.CoalesceGap)
+				}
+				if cfg.Pipeline.Seriatim.Report == nil || *cfg.Pipeline.Seriatim.Report != true {
+					t.Fatalf("seriatim.report = %v, want true", cfg.Pipeline.Seriatim.Report)
+				}
 			}
 
 			err = Validate(cfg)
@@ -280,6 +440,13 @@ func TestValidateMissingAudioSource(t *testing.T) {
 				RetryDelay:    "2s",
 				Concurrency:   &concurrency,
 			},
+			Seriatim: SeriatimConfig{
+				Binary:       "seriatim",
+				Timeout:      "10m",
+				OutputSchema: "seriatim-intermediate",
+				CoalesceGap:  float64Ptr(3.0),
+				Report:       boolPtr(true),
+			},
 		},
 		Session: &SessionConfig{
 			SessionID: "2026-05-03",

internal/config/validate.go

@@ -36,8 +36,7 @@ func validatePipeline(cfg *PipelineConfig) error {
 	if err := validateWhisperX(cfg.WhisperX); err != nil {
 		return err
 	}
-
+	if err := validateSeriatim(cfg.Seriatim); err != nil {
-	if err := validateDuration("pipeline.seriatim.timeout", cfg.Seriatim.Timeout); err != nil {
 		return err
 	}
 	if err := validateDuration("pipeline.audita.timeout", cfg.Audita.Timeout); err != nil {
@@ -85,6 +84,44 @@ func validateWhisperX(cfg WhisperXConfig) error {
 	return nil
 }
 
+func validateSeriatim(cfg SeriatimConfig) error {
+	if strings.TrimSpace(cfg.Binary) == "" {
+		return fmt.Errorf("pipeline.seriatim.binary is required")
+	}
+	if err := validateDuration("pipeline.seriatim.timeout", cfg.Timeout); err != nil {
+		return err
+	}
+
+	switch cfg.OutputSchema {
+	case "seriatim-minimal", "seriatim-intermediate", "seriatim-full":
+	default:
+		return fmt.Errorf("pipeline.seriatim.output_schema must be one of: seriatim-minimal, seriatim-intermediate, seriatim-full")
+	}
+
+	if cfg.CoalesceGap == nil {
+		return fmt.Errorf("pipeline.seriatim.coalesce_gap must be set (defaults should populate this)")
+	}
+	if *cfg.CoalesceGap < 0 {
+		return fmt.Errorf("pipeline.seriatim.coalesce_gap must be >= 0")
+	}
+
+	for _, item := range []struct {
+		name  string
+		value *float64
+	}{
+		{name: "pipeline.seriatim.env.overlap_word_run_gap", value: cfg.Env.OverlapWordRunGap},
+		{name: "pipeline.seriatim.env.overlap_word_run_reorder_window", value: cfg.Env.OverlapWordRunReorderWindow},
+		{name: "pipeline.seriatim.env.backchannel_max_duration", value: cfg.Env.BackchannelMaxDuration},
+		{name: "pipeline.seriatim.env.filler_max_duration", value: cfg.Env.FillerMaxDuration},
+	} {
+		if item.value != nil && *item.value <= 0 {
+			return fmt.Errorf("%s must be > 0 when provided", item.name)
+		}
+	}
+
+	return nil
+}
+
 func validateSession(cfg *SessionConfig) error {
 	if strings.TrimSpace(cfg.SessionID) == "" {
 		return fmt.Errorf("session.session_id is required")