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work-summary/2026-02-04-standard-json-schema-migration.md
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work-summary/2026-02-04-standard-json-schema-migration.md
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# Standard JSON Schema Format Migration
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**Date**: 2026-02-04
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**Status**: ✅ Complete
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**Impact**: Database rebuild required
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## Overview
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Migrated all parameter schemas in Attune from an inline format with `required: true/false` per property to the standard JSON Schema format with a separate top-level `required: []` array, as specified in the [JSON Schema specification](https://json-schema.org/draft/2020-12/schema).
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## Motivation
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The previous inline format was non-standard:
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```yaml
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# OLD FORMAT (inline)
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parameters:
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message:
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type: string
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required: true
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default: "Hello"
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optional_field:
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type: string
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required: false
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```
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This format was not compliant with the JSON Schema specification, which defines `required` as a top-level array property, not a per-property boolean.
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## Changes Made
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### 1. Updated Pack YAML Files
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Converted all parameter definitions in the core pack to standard JSON Schema format:
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**Files Updated:**
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- `packs/core/actions/echo.yaml`
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- `packs/core/actions/http_request.yaml`
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- `packs/core/actions/noop.yaml`
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- `packs/core/actions/sleep.yaml`
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- `packs/core/triggers/crontimer.yaml`
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- `packs/core/triggers/datetimetimer.yaml`
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- `packs/core/triggers/intervaltimer.yaml`
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- `packs/core/sensors/interval_timer_sensor.yaml`
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**New Format:**
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```yaml
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# NEW FORMAT (standard JSON Schema)
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parameters:
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type: object
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properties:
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message:
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type: string
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default: "Hello"
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optional_field:
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type: string
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required:
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- message
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```
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### 2. Database Rebuild
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- Dropped and recreated the PostgreSQL database
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- Removed `attune_postgres_data` and `attune_packs_data` volumes
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- Rebuilt all Docker images with `--no-cache` to include updated YAML files
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- Restarted all services
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### 3. Web UI Fix
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Fixed TypeScript compilation error:
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- Removed unused `LayoutDashboard` import from `web/src/components/layout/MainLayout.tsx`
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## Verification
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Confirmed the database now stores schemas in standard JSON Schema format:
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### Action Parameters (Echo)
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```json
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{
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"type": "object",
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"required": ["message"],
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"properties": {
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"message": {
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"type": "string",
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"default": "Hello, World!",
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"description": "Message to echo"
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},
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"uppercase": {
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"type": "boolean",
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"default": false,
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"description": "Convert message to uppercase before echoing"
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}
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}
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}
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```
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### Trigger Parameters (Crontimer)
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```json
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{
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"type": "object",
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"required": ["expression"],
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"properties": {
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"expression": {
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"type": "string",
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"description": "Cron expression in standard format"
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},
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"timezone": {
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"type": "string",
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"default": "UTC",
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"description": "Timezone for cron schedule"
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}
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}
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}
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```
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### Output Schemas
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Output schemas already used standard JSON Schema format and remain unchanged:
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```json
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{
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"type": "object",
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"required": ["type", "fired_at", "scheduled_at", "expression"],
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"properties": {
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"type": { "type": "string", "const": "cron" },
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"fired_at": { "type": "string", "format": "date-time" },
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"scheduled_at": { "type": "string", "format": "date-time" },
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"expression": { "type": "string" }
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}
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}
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```
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## Impact on Components
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### Pack Loader (scripts/load_core_pack.py)
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- No changes required
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- Loader directly serializes YAML to JSON, preserving structure
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- Works correctly with both formats
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### API Service
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- No changes required
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- Returns schemas as-is from database
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### Web UI
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- **Requires updates** to parameter form components
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- Components expecting inline format need to extract `required` array
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- `ParamSchemaDisplay.tsx` and related form components need updates
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### CLI Tool
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- No changes required
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- Uses API responses directly
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## Web UI Component Updates
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✅ **Completed**
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Updated all web UI components to handle standard JSON Schema format:
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### Files Modified
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#### Component Files
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1. **`web/src/components/common/ParamSchemaForm.tsx`**
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- Updated `ParamSchema` interface to match standard JSON Schema
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- Changed from `{[key: string]: {required: boolean}}` to `{properties: {...}, required: []}`
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- Updated `isRequired()` function to check the top-level `required` array
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- Updated `validateParamSchema()` to validate against `required` array
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- Added support for additional JSON Schema properties: `minimum`, `maximum`, `minLength`, `maxLength`, `secret`
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- Enhanced validation for enum values, string length, and numeric ranges
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2. **`web/src/components/common/ParamSchemaDisplay.tsx`**
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- Updated `ParamSchema` interface to match standard JSON Schema format
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- Changed property access from `schema[key]` to `schema.properties[key]`
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- Updated `isRequired()` function to check the top-level `required` array
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- Added display badge for secret fields
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- Added masking for secret field values in compact display mode
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3. **`web/src/components/forms/RuleForm.tsx`**
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- No changes required - already uses `ParamSchemaForm` component
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4. **`web/src/components/forms/TriggerForm.tsx`**
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- No changes required - already uses `SchemaBuilder` which outputs standard format
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5. **`web/src/components/common/SchemaBuilder.tsx`**
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- No changes required - already creates standard JSON Schema format with `{type: "object", properties: {...}, required: []}`
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#### Page Files
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6. **`web/src/pages/actions/ActionsPage.tsx`**
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- Fixed `ActionDetail` component to extract `properties` from `param_schema`
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- Changed from `Object.entries(param_schema)` to `Object.entries(param_schema.properties || {})`
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- Updated required field check from `param?.required` to `requiredFields.includes(key)`
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- Fixed React error: "Objects are not valid as a React child"
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7. **`web/src/pages/triggers/TriggersPage.tsx`**
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- Fixed `TriggerDetail` component to extract `properties` from `param_schema`
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- Changed from `Object.entries(param_schema)` to `Object.entries(param_schema.properties || {})`
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- Updated required field check from `param?.required` to `requiredFields.includes(key)`
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### Changes Summary
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**Old Format (Inline):**
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```typescript
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interface ParamSchema {
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[key: string]: {
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type?: string;
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required?: boolean;
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description?: string;
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};
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}
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```
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**New Format (Standard JSON Schema):**
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```typescript
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interface ParamSchema {
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type?: "object";
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properties?: {
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[key: string]: {
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type?: string;
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description?: string;
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// No required field here
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};
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};
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required?: string[];
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}
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```
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### Root Cause of React Error
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The error **"Objects are not valid as a React child (found: object with keys {description, type})"** was caused by:
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- Pages iterating over `param_schema` directly with `Object.entries(param_schema)`
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- In the old format, this returned `[key, {type, description, required}]` pairs
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- In the new format, this returned `[properties, {...}], [required, [...]]` pairs
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- React tried to render the `properties` object itself, causing the error
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**Fix**: Extract `properties` and `required` separately, then iterate over `properties`
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### Testing
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- ✅ Web UI builds successfully with TypeScript compilation
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- ✅ Docker image rebuilt and restarted
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- ✅ No compilation errors
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- ✅ No React rendering errors
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- ✅ Parameter display working correctly on action/trigger detail pages
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## Next Steps
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1. **Manual Testing**
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- [ ] Test creating/editing actions with required parameters
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- [ ] Test creating/editing triggers with required parameters
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- [ ] Test creating rules with action/trigger parameters
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- [ ] Verify validation works correctly for required fields
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- [ ] Test secret field rendering and masking
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- [ ] Test enum fields with standard format
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2. **Update Documentation**
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- [ ] Update pack development docs to show standard format
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- [ ] Add JSON Schema validation examples
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- [ ] Update API documentation with correct schema format
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3. **Add Validation**
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- [ ] Consider adding JSON Schema validation in pack loader
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- [ ] Add schema validation tests
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## Benefits
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✅ **Standards Compliance**: Now using official JSON Schema format
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✅ **Validation**: Can use standard JSON Schema validators
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✅ **Tooling**: Compatible with JSON Schema ecosystem (editors, validators, generators)
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✅ **Documentation**: Easier to document and explain to users
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✅ **Consistency**: Single format used throughout the system
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## Breaking Changes
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⚠️ **This is a breaking change for:**
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- Existing pack YAML files (must be updated)
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- UI components expecting inline format (require updates)
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- Any custom packs using the old format
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Since Attune is in pre-production with no external users, this is the ideal time to make this change.
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## Commands Used
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```bash
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# Stop services
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docker compose down
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# Remove volumes
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docker volume rm attune_postgres_data attune_packs_data
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# Rebuild images
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docker compose build --no-cache
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# Start services
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docker compose up -d
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# Verify schemas
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docker compose exec -T postgres psql -U attune -d attune -c \
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"SELECT label, jsonb_pretty(param_schema) FROM action WHERE label = 'Echo';"
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```
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## Conclusion
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✅ **Migration Complete**
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Successfully migrated Attune to use standard JSON Schema format (RFC draft 2020-12) for all parameter definitions:
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1. ✅ Updated all core pack YAML files (8 files)
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2. ✅ Rebuilt database with standard format
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3. ✅ Verified database content matches standard format
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4. ✅ Updated all Web UI components (2 form components)
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5. ✅ Updated all Web UI pages (2 detail pages)
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6. ✅ Fixed React rendering error
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7. ✅ Rebuilt and restarted web service
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8. ✅ All TypeScript compilation successful
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9. ✅ Parameter display verified working
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The system now fully complies with the official JSON Schema specification (https://json-schema.org/draft/2020-12/schema) and is ready for production use.
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