diff --git a/docs/consumers/configuration-migration.md b/docs/consumers/configuration-migration.md
index 400b2b9..d98321f 100644
--- a/docs/consumers/configuration-migration.md
+++ b/docs/consumers/configuration-migration.md
@@ -139,8 +139,10 @@ and diffs expose resolved values, recorded normalization and provenance.
 can apply further overrides, so the views are not promised to be identical.
 
 Remove `PromptVersion` and `PromptIdentity.Version` uses and the corresponding
-`prompt_version` JSON members. Prompt hashes are opaque equality values and may
-change when the removed field no longer participates in hashing.
+`prompt_version` JSON members. Prompt definition hashes are opaque equality
+values and may also change because redundant captured fields were removed.
+Invalidate persisted caches or comparisons that span this change; hashes from
+inspection and preparation of the same captured definition still agree.
 
 ## Identity Mapping
 
diff --git a/docs/roadmap/implementation.md b/docs/roadmap/implementation.md
index b311792..52b9205 100644
--- a/docs/roadmap/implementation.md
+++ b/docs/roadmap/implementation.md
@@ -804,6 +804,11 @@ pass on Go 1.27.3. The remaining file-source caller uses its three results.
 output overrides and hash-relation tests pass with independently specified
 behavior. No assertion of bit-identical previous hash values is added.
 
+Completion: captured definitions use the validation contract's format and no
+longer retain a redundant content-file path. Source-relative loading and
+request override defaulting remain intact. Configuration, prompt, use-case, and
+focused public tests pass on Go 1.27.3; migration guidance notes hash/cache impact.
+
 ## Stage 32: Retire The Legacy Production Capacity Wrapper
 
 **Catalog:** 34. **Files:** runner scheduling test, capacity wrapper/tests/docs.
diff --git a/internal/configuration/prompts.go b/internal/configuration/prompts.go
index 3a2932c..f5fe9dd 100644
--- a/internal/configuration/prompts.go
+++ b/internal/configuration/prompts.go
@@ -87,7 +87,6 @@ func (state *loaded) materializePrompt(id string, raw promptConfig, base configk
 	definition.Inputs = inputs
 	definition.Templates = messages
 	entry := &promptEntry{requirementInputs: inputMetadata, messages: compiledMessages}
-	definition.OutputFormat = contract.Format
 	definition.Validation = contract
 	if raw.SessionID != nil {
 		var err error
diff --git a/internal/domain/domain.go b/internal/domain/domain.go
index 4412087..787d200 100644
--- a/internal/domain/domain.go
+++ b/internal/domain/domain.go
@@ -145,7 +145,6 @@ type PromptDefinition struct {
 	SessionID      string                  `yaml:"session_id" json:"session_id,omitempty"`
 	Inputs         []PromptInput           `yaml:"inputs"`
 	Templates      []PromptMessageTemplate `yaml:"templates"`
-	OutputFormat   OutputFormat            `yaml:"output_format"`
 	Validation     OutputContract          `yaml:"validation"`
 }
 
@@ -170,7 +169,6 @@ type PromptInput struct {
 type PromptMessageTemplate struct {
 	Role         string        `yaml:"role"`
 	Content      string        `yaml:"content"`
-	ContentFile  string        `yaml:"content_file"`
 	CacheControl *CacheControl `yaml:"cache_control,omitempty" json:"cache_control,omitempty"`
 }
 
diff --git a/internal/prompt/renderer_test.go b/internal/prompt/renderer_test.go
index 5703291..e38cf1d 100644
--- a/internal/prompt/renderer_test.go
+++ b/internal/prompt/renderer_test.go
@@ -49,7 +49,7 @@ func TestGoRenderer_Render(t *testing.T) {
 		def := &domain.PromptDefinition{
 			Inputs: []domain.PromptInput{{Name: "transcript", Required: true}},
 			Templates: []domain.PromptMessageTemplate{
-				{Role: "user", Content: "From file: {{input \"transcript\"}}", ContentFile: "/tmp/user.tmpl"},
+				{Role: "user", Content: "From file: {{input \"transcript\"}}"},
 			},
 		}
 
diff --git a/internal/usecase/runner.go b/internal/usecase/runner.go
index 316de9d..487388a 100644
--- a/internal/usecase/runner.go
+++ b/internal/usecase/runner.go
@@ -641,9 +641,6 @@ func copyExtraParams(src map[string]any) map[string]any {
 
 func resolveOutputContract(def *domain.PromptDefinition, override *domain.OutputContract) (domain.OutputContract, error) {
 	contract := def.Validation
-	if contract.Format == "" {
-		contract.Format = def.OutputFormat
-	}
 	if override != nil {
 		contract = *override
 		if contract.Format == "" {
diff --git a/internal/usecase/runner_test.go b/internal/usecase/runner_test.go
index 3c4bdcb..c5f38ec 100644
--- a/internal/usecase/runner_test.go
+++ b/internal/usecase/runner_test.go
@@ -2504,7 +2504,6 @@ func promptDef(format domain.OutputFormat, mode domain.ValidationMode, attempts
 		DefaultProfile: "exec",
 		Inputs:         []domain.PromptInput{{Name: "transcript", Required: true}},
 		Templates:      []domain.PromptMessageTemplate{{Role: "user", Content: "x"}},
-		OutputFormat:   format,
 		Validation: domain.OutputContract{
 			ValidationMode: mode,
 			RepairAttempts: attempts,