diff --git a/packages/flow-schema/scripts/generate.mjs b/packages/flow-schema/scripts/generate.mjs
index 09aefa1..1f45bf8 100644
--- a/packages/flow-schema/scripts/generate.mjs
+++ b/packages/flow-schema/scripts/generate.mjs
@@ -6,7 +6,7 @@
 // is committed; CI runs `gen` and fails on any diff (drift guard).
 
 import { compileFromFile } from 'json-schema-to-typescript';
-import { mkdir, writeFile, copyFile } from 'node:fs/promises';
+import { mkdir, readFile, writeFile, copyFile } from 'node:fs/promises';
 import { dirname, resolve } from 'node:path';
 import { fileURLToPath } from 'node:url';
 
@@ -22,11 +22,24 @@ await mkdir(genDir, { recursive: true });
 //    consumers don't reach outside the package at runtime.
 await copyFile(schemaPath, resolve(genDir, 'flow.v1.schema.json'));
 
-// 2. Emit the model types from the schema.
 const banner =
   '// GENERATED from schema/flow.v1.schema.json by scripts/generate.mjs — do not edit.\n' +
   '// Run `pnpm gen` after changing the schema; CI fails on drift.\n';
 
+// 2. Emit the schema as a TS module. The runtime imports this instead of
+//    the bundled JSON file: a JSON import needs `with { type: 'json' }`,
+//    which older consumer bundlers (e.g. wrangler 3's pinned esbuild)
+//    cannot parse in the published dist.
+const schemaSource = JSON.parse(await readFile(schemaPath, 'utf8'));
+const schemaTs =
+  banner +
+  '\nconst schema = ' +
+  JSON.stringify(schemaSource, null, 2) +
+  ' as const;\n\nexport default schema;\n';
+await writeFile(resolve(genDir, 'schema.ts'), schemaTs);
+
+// 3. Emit the model types from the schema.
+
 const ts = await compileFromFile(schemaPath, {
   bannerComment: banner,
   additionalProperties: true, // unknown fields are accepted (matches both twins)
@@ -35,4 +48,4 @@ const ts = await compileFromFile(schemaPath, {
 
 await writeFile(resolve(genDir, 'model.ts'), ts);
 
-console.log('generated src/generated/model.ts and bundled flow.v1.schema.json');
+console.log('generated src/generated/{model,schema}.ts and bundled flow.v1.schema.json');
diff --git a/packages/flow-schema/src/generated/schema.ts b/packages/flow-schema/src/generated/schema.ts
new file mode 100644
index 0000000..244eb9b
--- /dev/null
+++ b/packages/flow-schema/src/generated/schema.ts
@@ -0,0 +1,380 @@
+// GENERATED from schema/flow.v1.schema.json by scripts/generate.mjs — do not edit.
+// Run `pnpm gen` after changing the schema; CI fails on drift.
+
+const schema = {
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://schema.wavekat.com/flow/v1.json",
+  "title": "Flow",
+  "description": "The WaveKat call-flow (\"Receptionist\") document, schema_version 1. This file is the single source of truth for the document SHAPE: every consumer (the @wavekat/flow-schema npm package, the wavekat-flow Rust crate) generates its model types from this file. Semantic rules that a JSON Schema cannot express (graph reachability, exit-set exactness, hours/timezone math, DTMF digit validity, prompt length) are NOT encoded here — they live in each language's validator and are pinned by the shared conformance corpus. Unknown fields are permitted structurally, matching both implementations (Rust serde ignores them; the TS parser surfaces a non-blocking warning).",
+  "type": "object",
+  "required": [
+    "schema_version",
+    "id",
+    "name",
+    "entry",
+    "nodes"
+  ],
+  "properties": {
+    "schema_version": {
+      "description": "Document format version. This file describes version 1 only; a document declaring another version validates against that version's schema file, not this one.",
+      "type": "integer",
+      "const": 1
+    },
+    "id": {
+      "description": "Opaque platform-assigned id (flow_…). Treated as a label; appears in traces.",
+      "type": "string"
+    },
+    "name": {
+      "description": "Human name shown in the editor and the read-only viewer.",
+      "type": "string"
+    },
+    "version": {
+      "description": "Platform-assigned publish counter, bumped on publish. Defaults to 1 for a hand-written or generated pre-publish document. Distinct from schema_version.",
+      "type": "integer",
+      "minimum": 0,
+      "default": 1
+    },
+    "entry": {
+      "description": "Node id where execution begins.",
+      "type": "string"
+    },
+    "nodes": {
+      "description": "The flat node set, keyed by human-meaningful node id and string-referenced by exits. Order is irrelevant to execution.",
+      "type": "object",
+      "additionalProperties": {
+        "$ref": "#/$defs/Node"
+      }
+    },
+    "ui": {
+      "description": "Presentation metadata (canvas positions, annotations). Preserved on round-trip, never read by the engine. Opaque by design so a canvas editor can add layout fields without a schema bump."
+    }
+  },
+  "$defs": {
+    "Prompt": {
+      "description": "What a component speaks: TTS text (a bare string) or a reference to a pre-rendered audio asset shipped alongside the flow.",
+      "oneOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "object",
+          "required": [
+            "audio"
+          ],
+          "properties": {
+            "audio": {
+              "description": "Audio asset ref. A generated-clip ref is a voice_prompts id matching ^vprompt_[a-z0-9]+$.",
+              "type": "string"
+            }
+          }
+        }
+      ]
+    },
+    "MessageTone": {
+      "description": "The cue a message node plays between its prompt and the start of recording.",
+      "type": "string",
+      "enum": [
+        "beep",
+        "none"
+      ]
+    },
+    "Exits": {
+      "description": "Wired exits: exit name → target node id. Which names are valid is a property of the node's kind and is checked by the validator, not by this schema.",
+      "type": "object",
+      "additionalProperties": {
+        "type": "string"
+      }
+    },
+    "TimeRange": {
+      "description": "One open window: open–close as \"HH:MM\" (24-hour). Ordering and overnight rules are enforced by the validator.",
+      "type": "object",
+      "required": [
+        "open",
+        "close"
+      ],
+      "properties": {
+        "open": {
+          "type": "string"
+        },
+        "close": {
+          "type": "string"
+        }
+      }
+    },
+    "WeeklySchedule": {
+      "description": "Open ranges per weekday; a missing or empty day means closed all day.",
+      "type": "object",
+      "properties": {
+        "mon": {
+          "type": "array",
+          "items": {
+            "$ref": "#/$defs/TimeRange"
+          }
+        },
+        "tue": {
+          "type": "array",
+          "items": {
+            "$ref": "#/$defs/TimeRange"
+          }
+        },
+        "wed": {
+          "type": "array",
+          "items": {
+            "$ref": "#/$defs/TimeRange"
+          }
+        },
+        "thu": {
+          "type": "array",
+          "items": {
+            "$ref": "#/$defs/TimeRange"
+          }
+        },
+        "fri": {
+          "type": "array",
+          "items": {
+            "$ref": "#/$defs/TimeRange"
+          }
+        },
+        "sat": {
+          "type": "array",
+          "items": {
+            "$ref": "#/$defs/TimeRange"
+          }
+        },
+        "sun": {
+          "type": "array",
+          "items": {
+            "$ref": "#/$defs/TimeRange"
+          }
+        }
+      }
+    },
+    "HoursException": {
+      "description": "A single-date override of the weekly schedule (holiday / special hours).",
+      "type": "object",
+      "required": [
+        "date"
+      ],
+      "properties": {
+        "date": {
+          "description": "\"YYYY-MM-DD\" in the flow's timezone.",
+          "type": "string"
+        },
+        "closed": {
+          "description": "Closed all day regardless of ranges.",
+          "type": "boolean",
+          "default": false
+        },
+        "ranges": {
+          "type": "array",
+          "items": {
+            "$ref": "#/$defs/TimeRange"
+          }
+        }
+      }
+    },
+    "Node": {
+      "description": "One node: a component (kind + its config) plus its wired exits. An internally-tagged union on `kind`.",
+      "oneOf": [
+        {
+          "$ref": "#/$defs/GreetingNode"
+        },
+        {
+          "$ref": "#/$defs/HoursNode"
+        },
+        {
+          "$ref": "#/$defs/MenuNode"
+        },
+        {
+          "$ref": "#/$defs/RingNode"
+        },
+        {
+          "$ref": "#/$defs/MessageNode"
+        },
+        {
+          "$ref": "#/$defs/TransferNode"
+        },
+        {
+          "$ref": "#/$defs/HangupNode"
+        }
+      ]
+    },
+    "GreetingNode": {
+      "description": "Speak a prompt, then continue. Exit: next.",
+      "type": "object",
+      "required": [
+        "kind",
+        "prompt"
+      ],
+      "properties": {
+        "kind": {
+          "const": "greeting"
+        },
+        "prompt": {
+          "$ref": "#/$defs/Prompt"
+        },
+        "exits": {
+          "$ref": "#/$defs/Exits"
+        }
+      }
+    },
+    "HoursNode": {
+      "description": "Branch on the business's weekly schedule + holiday overrides. Exits: open, closed.",
+      "type": "object",
+      "required": [
+        "kind",
+        "schedule",
+        "timezone"
+      ],
+      "properties": {
+        "kind": {
+          "const": "hours"
+        },
+        "schedule": {
+          "$ref": "#/$defs/WeeklySchedule"
+        },
+        "timezone": {
+          "description": "IANA zone (America/New_York). Validated to resolve at load.",
+          "type": "string"
+        },
+        "exceptions": {
+          "type": "array",
+          "items": {
+            "$ref": "#/$defs/HoursException"
+          }
+        },
+        "exits": {
+          "$ref": "#/$defs/Exits"
+        }
+      }
+    },
+    "MenuNode": {
+      "description": "Speak a prompt and collect a DTMF choice. Exits: one per digit in options, plus no_input and invalid.",
+      "type": "object",
+      "required": [
+        "kind",
+        "prompt",
+        "options"
+      ],
+      "properties": {
+        "kind": {
+          "const": "menu"
+        },
+        "prompt": {
+          "$ref": "#/$defs/Prompt"
+        },
+        "options": {
+          "description": "Digit key → human label. The exit for a digit is exits[digit]. Valid digit keys are enforced by the validator.",
+          "type": "object",
+          "additionalProperties": {
+            "type": "string"
+          }
+        },
+        "retries": {
+          "type": "integer",
+          "minimum": 0,
+          "default": 1
+        },
+        "timeout_secs": {
+          "type": "integer",
+          "minimum": 0,
+          "default": 5
+        },
+        "exits": {
+          "$ref": "#/$defs/Exits"
+        }
+      }
+    },
+    "RingNode": {
+      "description": "Ring the human for a window. answered is an implicit terminal; the only wired exit is no_answer.",
+      "type": "object",
+      "required": [
+        "kind",
+        "timeout_secs"
+      ],
+      "properties": {
+        "kind": {
+          "const": "ring"
+        },
+        "timeout_secs": {
+          "type": "integer",
+          "minimum": 0
+        },
+        "exits": {
+          "$ref": "#/$defs/Exits"
+        }
+      }
+    },
+    "MessageNode": {
+      "description": "Voicemail: speak a prompt, record, transcribe, notify. Terminal.",
+      "type": "object",
+      "required": [
+        "kind",
+        "prompt"
+      ],
+      "properties": {
+        "kind": {
+          "const": "message"
+        },
+        "prompt": {
+          "$ref": "#/$defs/Prompt"
+        },
+        "max_secs": {
+          "type": "integer",
+          "minimum": 0,
+          "default": 120
+        },
+        "tone": {
+          "allOf": [
+            {
+              "$ref": "#/$defs/MessageTone"
+            }
+          ],
+          "default": "beep"
+        },
+        "exits": {
+          "$ref": "#/$defs/Exits"
+        }
+      }
+    },
+    "TransferNode": {
+      "description": "Blind-transfer to an external number. Terminal.",
+      "type": "object",
+      "required": [
+        "kind",
+        "target"
+      ],
+      "properties": {
+        "kind": {
+          "const": "transfer"
+        },
+        "target": {
+          "type": "string"
+        },
+        "exits": {
+          "$ref": "#/$defs/Exits"
+        }
+      }
+    },
+    "HangupNode": {
+      "description": "Speak an optional goodbye and end the call. Terminal.",
+      "type": "object",
+      "required": [
+        "kind"
+      ],
+      "properties": {
+        "kind": {
+          "const": "hangup"
+        },
+        "prompt": {
+          "$ref": "#/$defs/Prompt"
+        },
+        "exits": {
+          "$ref": "#/$defs/Exits"
+        }
+      }
+    }
+  }
+} as const;
+
+export default schema;
diff --git a/packages/flow-schema/src/index.ts b/packages/flow-schema/src/index.ts
index 7db61e3..137e41f 100644
--- a/packages/flow-schema/src/index.ts
+++ b/packages/flow-schema/src/index.ts
@@ -14,7 +14,10 @@
 import { Ajv2020 } from 'ajv/dist/2020.js';
 import type { ErrorObject } from 'ajv';
 
-import schema from './generated/flow.v1.schema.json' with { type: 'json' };
+// The schema as a generated TS module, not a JSON import: import
+// attributes (`with { type: 'json' }`) don't survive every consumer
+// bundler. The raw JSON is still shipped at the `./schema/v1` export.
+import schema from './generated/schema.js';
 
 // Model: generated types + hand-written constants & helpers.
 export * from './model.js';