refactor: status-based graph routing + mustache prompt templates

- Delete ConditionDefinition, Transition types from workflow-protocol
- Add Target type, change graph to Record<string, Record<string, Target>>
- Remove conditions from WorkflowPayload and WORKFLOW_SCHEMA
- Replace jsonata with mustache in workflow-moderator
- Rewrite evaluate() to simple map lookup + mustache render
- Update cli-workflow to use new 3-arg evaluate(graph, role, output)
- 296 tests pass, 0 fail

Phase 1 of #490 (closes #491)

packages/workflow-protocol/src/index.ts

@@ -7,7 +7,6 @@ export type {
   AgentAlias,
   AgentConfig,
   CasRef,
-  ConditionDefinition,
   ModelAlias,
   ModelConfig,
   ModeratorContext,
@@ -26,12 +25,12 @@ export type {
   StepNodePayload,
   StepOutput,
   StepRecord,
+  Target,
   ThreadForkOutput,
   ThreadId,
   ThreadListItem,
   ThreadStepsOutput,
   ThreadsIndex,
-  Transition,
   WorkflowConfig,
   WorkflowName,
   WorkflowPayload,

packages/workflow-protocol/src/schemas.ts

@@ -14,22 +14,11 @@ const ROLE_DEFINITION: JSONSchema = {
   additionalProperties: false,
 };
 
-const CONDITION_DEFINITION: JSONSchema = {
+const TARGET: JSONSchema = {
   type: "object",
-  required: ["description", "expression"],
-  properties: {
-    description: { type: "string" },
-    expression: { type: "string" },
-  },
-  additionalProperties: false,
-};
-
-const TRANSITION: JSONSchema = {
-  type: "object",
-  required: ["role", "condition", "prompt"],
+  required: ["role", "prompt"],
   properties: {
     role: { type: "string" },
-    condition: { anyOf: [{ type: "string" }, { type: "null" }] },
     prompt: { type: "string" },
   },
   additionalProperties: false,
@@ -38,7 +27,7 @@ const TRANSITION: JSONSchema = {
 export const WORKFLOW_SCHEMA: JSONSchema = {
   title: "Workflow",
   type: "object",
-  required: ["name", "description", "roles", "conditions", "graph"],
+  required: ["name", "description", "roles", "graph"],
   properties: {
     name: { type: "string" },
     description: { type: "string" },
@@ -46,15 +35,11 @@ export const WORKFLOW_SCHEMA: JSONSchema = {
       type: "object",
       additionalProperties: ROLE_DEFINITION,
     },
-    conditions: {
-      type: "object",
-      additionalProperties: CONDITION_DEFINITION,
-    },
     graph: {
       type: "object",
       additionalProperties: {
-        type: "array",
-        items: TRANSITION,
+        type: "object",
+        additionalProperties: TARGET,
       },
     },
   },

packages/workflow-protocol/src/types.ts

@@ -27,23 +27,16 @@ export type RoleDefinition = {
   frontmatter: CasRef;
 };
 
-export type Transition = {
+export type Target = {
   role: string;
-  condition: string | null;
   prompt: string;
 };
 
-export type ConditionDefinition = {
-  description: string;
-  expression: string;
-};
-
 export type WorkflowPayload = {
   name: string;
   description: string;
   roles: Record<string, RoleDefinition>;
-  conditions: Record<string, ConditionDefinition>;
-  graph: Record<string, Transition[]>;
+  graph: Record<string, Record<string, Target>>;
 };
 
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