diff --git a/README.md b/README.md
index 9767152..90dbfd3 100644
--- a/README.md
+++ b/README.md
@@ -273,7 +273,7 @@ A second execution path is being built: an arrow-first translator that
 compiles AgentScript into [Sibyl](https://github.com/vinodhalaharvi/sibyl)
 DAGs for durable, Temporal-backed execution. The design is documented in
 [`docs/dsl-to-sibyl-translator.md`](docs/dsl-to-sibyl-translator.md); the
-translator code is under `internal/agentscript/script/`. The existing
+translator code is under `pkg/script/`. The existing
 in-process runtime continues to serve as the fast "memory" backend.
 
 ## Project Structure
@@ -366,7 +366,7 @@ go test ./...
 go test -race ./...
 
 # A single package
-go test ./internal/agentscript/script/...
+go test ./pkg/script/...
 ```
 
 CI (GitHub Actions) runs `go mod tidy`, `go vet -structtag=false`, `gofmt`,
diff --git a/cmd/agentscript-run/main.go b/cmd/agentscript-run/main.go
index 2396bd4..15be0aa 100644
--- a/cmd/agentscript-run/main.go
+++ b/cmd/agentscript-run/main.go
@@ -30,7 +30,7 @@ import (
 
 	sibyl "github.com/vinodhalaharvi/sibyl/agent"
 
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script"
+	"github.com/vinodhalaharvi/agentscript/pkg/script"
 )
 
 func main() {
diff --git a/docs/dsl-to-sibyl-translator.md b/docs/dsl-to-sibyl-translator.md
index b6d6740..2810c97 100644
--- a/docs/dsl-to-sibyl-translator.md
+++ b/docs/dsl-to-sibyl-translator.md
@@ -1,6 +1,6 @@
 # AgentScript → Sibyl: DSL Translator Design Memo
 
-**Status:** Partially implemented. Parse and Resolve are merged; Lower → Submit and the CLI are in progress. See "Implementation status" below.
+**Status:** Translator MVP complete. The full pipeline (Parse → Resolve → Lower → Finalize → Validate → Submit) is merged and importable at `pkg/script/`; `echo` runs end-to-end against Sibyl's `PlanWorkflow`. See "Implementation status" below.
 **Companion repo:** [vinodhalaharvi/sibyl](https://github.com/vinodhalaharvi/sibyl) (the execution layer)
 **Implements against:** Sibyl's `agents.WithOAuth` behavior, `ConvergeWorkflow`, `ToolAgentArrow`, `SupervisorWorkflow`, and the existing DAG execution model.
 
@@ -12,17 +12,25 @@ The translator is being built in slices (see §14). Current state:
 
 | Phase | Arrow | Status |
 |-------|-------|--------|
-| Parse | `Arrow[Source, AST]` | **Merged** — `internal/agentscript/script/parse.go` |
-| Resolve | `Arrow[AST, ResolvedAST]` | **Merged** — `internal/agentscript/script/resolve.go` + `registry/` |
-| Lower | `Arrow[ResolvedAST, DAGFragment]` | Pending |
-| Finalize | `Arrow[DAGFragment, sibyl.DAG]` | Pending |
-| Validate | `Arrow[sibyl.DAG, sibyl.DAG]` | Pending |
-| Submit | `Arrow[sibyl.DAG, WorkflowHandle]` | Pending |
+| Parse | `Arrow[Source, AST]` | **Merged** — `pkg/script/parse.go` |
+| Resolve | `Arrow[AST, ResolvedAST]` | **Merged** — `pkg/script/resolve.go` + `registry/` |
+| Lower | `Arrow[ResolvedAST, Lowered]` | **Merged** — `pkg/script/lower.go` |
+| Finalize | `Arrow[Lowered, sibyl.Plan]` | **Merged** — `pkg/script/lower.go` |
+| Validate | `Arrow[sibyl.Plan, sibyl.Plan]` | **Merged** — `pkg/script/lower.go` |
+| Submit | `Arrow[sibyl.Plan, WorkflowHandle]` | **Merged** — `pkg/script/submit.go` |
+
+The full pipeline (`Compile` = Parse..Validate, `Run` = Compile + Submit)
+is in `pkg/script/submit.go`, importable from outside the module. The
+lowering target is Sibyl's serializable `Plan` (a DAG of named-activity
+references) executed by the generic `PlanWorkflow` — not the removed
+in-process closure DAG. The first builtin, `echo`, binds to Sibyl's
+`Echo` activity; the `agentscript-run` CLI compiles a `.as` file to a
+Plan (`--dry-run` to print it, otherwise submit to a Temporal worker).
 
 On the Sibyl side, the convergence-primitive arrows this memo depends on
 (`ConvergeArrow`, `SupervisorArrow`; `ToolAgentArrow` already existed) are
-merged. The sections below describe the full design; phases marked Pending
-above are specified but not yet built.
+merged, as are the serializable `Plan`, `PlanWorkflow`, and `Echo`
+activity the translator lowers into.
 
 ---
 
diff --git a/internal/agentscript/script/ast/ast.go b/pkg/script/ast/ast.go
similarity index 100%
rename from internal/agentscript/script/ast/ast.go
rename to pkg/script/ast/ast.go
diff --git a/internal/agentscript/script/builtins.go b/pkg/script/builtins.go
similarity index 94%
rename from internal/agentscript/script/builtins.go
rename to pkg/script/builtins.go
index 1fec008..d8a643b 100644
--- a/internal/agentscript/script/builtins.go
+++ b/pkg/script/builtins.go
@@ -12,7 +12,7 @@ package script
 import (
 	sibyl "github.com/vinodhalaharvi/sibyl/agent"
 
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/registry"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/registry"
 )
 
 // EchoSpec is the BuiltinSpec for the echo builtin. It takes one
diff --git a/internal/agentscript/script/lower.go b/pkg/script/lower.go
similarity index 97%
rename from internal/agentscript/script/lower.go
rename to pkg/script/lower.go
index 14dc24e..835ae19 100644
--- a/internal/agentscript/script/lower.go
+++ b/pkg/script/lower.go
@@ -28,8 +28,8 @@ import (
 
 	sibyl "github.com/vinodhalaharvi/sibyl/agent"
 
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/ast"
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/resolved"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/ast"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/resolved"
 )
 
 // fragment is a partial plan under construction. Nodes accumulate as the
diff --git a/internal/agentscript/script/lower_test.go b/pkg/script/lower_test.go
similarity index 97%
rename from internal/agentscript/script/lower_test.go
rename to pkg/script/lower_test.go
index 0728506..dd9b9bd 100644
--- a/internal/agentscript/script/lower_test.go
+++ b/pkg/script/lower_test.go
@@ -6,8 +6,8 @@ import (
 
 	sibyl "github.com/vinodhalaharvi/sibyl/agent"
 
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script"
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/registry"
+	"github.com/vinodhalaharvi/agentscript/pkg/script"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/registry"
 )
 
 // compile is a helper: source → Plan via the full Compile pipeline using
diff --git a/internal/agentscript/script/parse.go b/pkg/script/parse.go
similarity index 98%
rename from internal/agentscript/script/parse.go
rename to pkg/script/parse.go
index 7547fec..5465c28 100644
--- a/internal/agentscript/script/parse.go
+++ b/pkg/script/parse.go
@@ -25,7 +25,7 @@ import (
 	"github.com/alecthomas/participle/v2"
 	"github.com/alecthomas/participle/v2/lexer"
 
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/ast"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/ast"
 )
 
 // === Parse arrow ===========================================================
diff --git a/internal/agentscript/script/parse_test.go b/pkg/script/parse_test.go
similarity index 98%
rename from internal/agentscript/script/parse_test.go
rename to pkg/script/parse_test.go
index 746a8ab..53781f2 100644
--- a/internal/agentscript/script/parse_test.go
+++ b/pkg/script/parse_test.go
@@ -6,8 +6,8 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script"
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/ast"
+	"github.com/vinodhalaharvi/agentscript/pkg/script"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/ast"
 )
 
 // === Helpers ===============================================================
diff --git a/internal/agentscript/script/registry/registry.go b/pkg/script/registry/registry.go
similarity index 100%
rename from internal/agentscript/script/registry/registry.go
rename to pkg/script/registry/registry.go
diff --git a/internal/agentscript/script/registry/registry_test.go b/pkg/script/registry/registry_test.go
similarity index 97%
rename from internal/agentscript/script/registry/registry_test.go
rename to pkg/script/registry/registry_test.go
index 3cfeeec..44e4333 100644
--- a/internal/agentscript/script/registry/registry_test.go
+++ b/pkg/script/registry/registry_test.go
@@ -3,7 +3,7 @@ package registry_test
 import (
 	"testing"
 
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/registry"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/registry"
 )
 
 func echoSpec() registry.BuiltinSpec {
diff --git a/internal/agentscript/script/resolve.go b/pkg/script/resolve.go
similarity index 96%
rename from internal/agentscript/script/resolve.go
rename to pkg/script/resolve.go
index 7426bd6..fc9b295 100644
--- a/internal/agentscript/script/resolve.go
+++ b/pkg/script/resolve.go
@@ -17,9 +17,9 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/ast"
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/registry"
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/resolved"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/ast"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/registry"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/resolved"
 )
 
 // Resolve binds an AST to a Registry, producing a ResolvedAST. Because
diff --git a/internal/agentscript/script/resolve_test.go b/pkg/script/resolve_test.go
similarity index 96%
rename from internal/agentscript/script/resolve_test.go
rename to pkg/script/resolve_test.go
index 8c29821..b87d695 100644
--- a/internal/agentscript/script/resolve_test.go
+++ b/pkg/script/resolve_test.go
@@ -5,10 +5,10 @@ import (
 	"errors"
 	"testing"
 
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script"
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/ast"
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/registry"
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/resolved"
+	"github.com/vinodhalaharvi/agentscript/pkg/script"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/ast"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/registry"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/resolved"
 )
 
 // === Test registry helpers =================================================
diff --git a/internal/agentscript/script/resolved/resolved.go b/pkg/script/resolved/resolved.go
similarity index 90%
rename from internal/agentscript/script/resolved/resolved.go
rename to pkg/script/resolved/resolved.go
index 56a445f..9da3a8e 100644
--- a/internal/agentscript/script/resolved/resolved.go
+++ b/pkg/script/resolved/resolved.go
@@ -9,8 +9,8 @@
 package resolved
 
 import (
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/ast"
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/registry"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/ast"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/registry"
 )
 
 // AST is a fully resolved program: a list of resolved blocks.
diff --git a/internal/agentscript/script/source.go b/pkg/script/source.go
similarity index 100%
rename from internal/agentscript/script/source.go
rename to pkg/script/source.go
diff --git a/internal/agentscript/script/submit.go b/pkg/script/submit.go
similarity index 97%
rename from internal/agentscript/script/submit.go
rename to pkg/script/submit.go
index e14f2ae..bdc2c92 100644
--- a/internal/agentscript/script/submit.go
+++ b/pkg/script/submit.go
@@ -19,7 +19,7 @@ import (
 
 	sibyl "github.com/vinodhalaharvi/sibyl/agent"
 
-	"github.com/vinodhalaharvi/agentscript/internal/agentscript/script/registry"
+	"github.com/vinodhalaharvi/agentscript/pkg/script/registry"
 )
 
 // Compile runs Parse >>> Resolve >>> Lower >>> Finalize >>> Validate,