Coming soon · Contract draft
Delivery Health & Recovery
A delivery intelligence contract for health snapshots, forecast settings, recovery proposals, and human decisions.
Reviewable specification — not callable
Canonical owner
Delivery health, forecast, and recovery services
Contract posture
P1 · Documentation first · implementation follows approval
Contract metadata
Draft version
0.2 review draft
Review owner
Delivery/Execute + Developer Platform
Last reviewed
July 14, 2026
Target wave
Wave 2 · Project and Execute core
Contract dependencies
- • Canonical domain service adapter
- • Optimistic concurrency and idempotency policy
- • Transactional event outbox
What this unlocks
Explain health change
Read a stable domain model for delivery health & recovery without depending on GUI routes or database shapes.
Compare forecast history
Create a reviewable proposal and apply only the bounded commands the canonical owner permits.
Review recovery proposals
React to durable lifecycle facts and connect external systems with explicit direction and provenance.
Lifecycle and invariants
Delivery Health & Recovery exposes a bounded lifecycle with explicit commands and named authority at every transition.
healthywatchat_riskrecoveringrecovered| From | To | Command | Authority |
|---|---|---|---|
| healthy | watch | Record warning | Delivery health and recovery services |
| watch | at_risk | Cross risk threshold | Delivery health and recovery services |
| at_risk | recovering | Accept recovery plan | Delivery health and recovery services |
| recovering | recovered | Confirm recovery | Delivery health and recovery services |
Lifecycle invariants
- • Health state is evidence-backed and versioned.
- • Recovery proposals never move schedules until governed commands apply.
Authority boundaries
The interfaces expose canonical capabilities; they do not become a second owner of domain rules or state.
DigitalStack owns
- • Health snapshot definitions
- • Forecast and burn projections
- • Recovery proposal and decision lifecycle
Explicitly not building
- • Advisory health mutating schedules
- • Opaque model output without evidence
- • Automatic acceptance of recovery plans
Surface decisions
Deliberate additions, retained boundaries, and removals from the proposed external contract.
Health history, forecast settings, recovery proposals, and named decisions
Consumers need change over time and explicit response workflows.
Existing health reads and evidence explanations
They are valuable advisory foundations.
Generic create/update of health snapshots and automatic recovery application
Snapshots are service-generated facts; agents do not author health truth.
Project/engagement-scoped filtering on every read and command
A workspace API key is not a licence to read every project. Access composes workspace membership with per-project visibility, so integrators receive exactly the engagements they are entitled to.
Interface plan
REST API
PlannedVersioned delivery health & recovery resources, commands, idempotency, and operation status.
Reads + explicit commands
GraphQL
PlannedComposable DeliveryHealth reads with mutations delegated to the same canonical domain service.
Composable reads + bounded delegated mutations
MCP / Agent API
PlannedBounded read, draft, and human-request tools with evidence and audit attribution.
Read + proposal/confirmed commands only
Webhooks
PlannedPast-tense delivery health lifecycle facts with minimal payloads.
Past-tense durable facts only
Connected Apps
PlannedSlack / Teams / analytics plus consumer clients, with declared direction and authority.
Declared direction and field authority required
Cross-interface parity
Each surface delegates to the named canonical owner; a blank surface is an intentional denial of authority, not missing documentation.
| Capability | REST | GraphQL | MCP | Webhook | Canonical owner |
|---|---|---|---|---|---|
| Primary read | GET /delivery/health | deliveryHealth(id: ID!): DeliveryHealth | get_delivery_health_recovery | — | Delivery health, forecast, and recovery services |
| Primary command | POST /delivery/health/{id}/accept-recovery | draftDeliveryHealthChange(input: DraftDeliveryHealthChangeInput!): DeliveryHealthChangeProposal! | draft_delivery_health_recovery_change | delivery_health.created | Delivery health, forecast, and recovery services |
Proposed scopes
Proposed scopes are not grantable yet.
delivery-health:readplanned scopedelivery-health:writeplanned scopedelivery-health:operateplanned scopeBehavioral contract
Cross-cutting rules every implementation and interface must satisfy.
Project / engagement-scoped access
A project and its engagement are the same object here. Resources are scoped to the projects the principal can access: workspace membership plus project-level visibility — owners and admins see every project, other principals see only the projects they created, were role-assigned, or were added to as members. List endpoints return only visible projects’ resources; detail endpoints enforce that visibility before returning or changing anything.
Canonical delegation
Every interface delegates to Delivery health, forecast, and recovery services; no resolver, gateway, worker, or connector reimplements domain rules.
Least-privilege principals
Scopes are evaluated with tenant, role, field-visibility, and principal-type constraints before data is read or changed.
Safe writes
Mutations use explicit confirmation where required, optimistic concurrency, idempotency, and durable actor attribution.
Transactional facts
Webhook facts are emitted from the canonical commit path, versioned, minimal, and safe to redeliver.
Declared provider authority
Every Connected App declares direction, field authority, provenance, and conflict behavior before activation.
REST API
Proposed endpoints
/api/v1/delivery/healthList delivery health & recovery
Return an authorized, paginated collection with stable filters and provenance.
delivery-health:read
/api/v1/delivery/health/{id}Retrieve DeliveryHealth
Return canonical detail, lifecycle state, permissions, and allowed actions.
delivery-health:read
/api/v1/delivery/health/{id}/accept-recoveryconfirmationaccept recovery DeliveryHealth
Run one explicit domain command after validation and authorization.
delivery-health:operate
/api/v1/delivery/health/{id}/historyGet health history
Return versioned health and forecast changes with evidence.
delivery-health:read
- Execution
- Synchronous
/api/v1/delivery/recovery-proposalsList recovery proposals
Return reviewable recovery proposals and decision state.
delivery-health:read
- Execution
- Synchronous
accept recovery a DeliveryHealth
curl --request POST \
+ --url https://www.digitalstack360.com/api/v1/delivery/health/delivery_health_123/accept-recovery \
+ --header "Authorization: Bearer $DSTACK_API_KEY" \
+ --header "Content-Type: application/json" \
+ --header "Idempotency-Key: delivery-health-recovery-accept-recovery-v2" \
+ --data '{
"expected_version": 2,
"reason": "Confirmed through the reviewed integration workflow"
}'{
"data": {
"id": "delivery_health_123",
"status": "recovery_accepted",
"version": 3,
"operation_id": "op_01k4..."
}
}GraphQL
Proposed graph
Types
DeliveryHealthDeliveryHealthConnectionDeliveryHealthChangeProposalOperationQueries
deliveryHealth(id: ID!): DeliveryHealthdeliveryHealthList(filter: DeliveryHealthFilter, pagination: PaginationInput): DeliveryHealthConnection!Mutations
draftDeliveryHealthChange(input: DraftDeliveryHealthChangeInput!): DeliveryHealthChangeProposal!query DeliveryHealthDetail($id: ID!) {
deliveryHealth(id: $id) {
id
status
version
updatedAt
allowedActions { id label requiresConfirmation }
source { kind externalId }
}
}MCP / Agent API
Proposed tools
Get Delivery Health & Recovery
get_delivery_health_recoveryRead the authorized delivery health & recovery state, provenance, and allowed actions.
- Scope
- delivery-health:read
- Input
- Resource id or a bounded filter.
- Output
- Canonical detail with source provenance and allowed actions.
- Write boundary
- Read only.
Draft Delivery Health & Recovery change
draft_delivery_health_recovery_changeBuild a reviewable proposal from explicit user intent and DigitalStack evidence.
- Scope
- delivery-health:write
- Input
- Target, requested outcome, expected version, and optional evidence references.
- Output
- A persisted proposal, validation results, and conflicts.
- Write boundary
- Creates a proposal; it does not mutate canonical state.
Request Delivery Health & Recovery action
request_delivery_health_recovery_actionPrepare an authorized human action request without executing the high-risk command.
- Scope
- delivery-health:operate
- Input
- Proposal id, expected version, named decision maker, and reason.
- Output
- A pending human-action request and audit reference.
- Write boundary
- The agent cannot execute the final command.
User: Review the proposed delivery health & recovery change and help me apply it.
1. Call get_delivery_health_recovery to inspect current state, provenance, and allowed actions.
2. Call draft_delivery_health_recovery_change to create a proposal without changing canonical state.
3. Show validation results, conflicts, and the exact command to the user.
4. Call request_delivery_health_recovery_action so an authorized human can decide.
Never infer authority from access to the MCP client.Webhooks
Proposed event catalog
Event types
delivery_health.createdplanned eventA canonical DeliveryHealth was created.
payload: delivery_health_id, status, created_at
delivery_health.updatedplanned eventGoverned DeliveryHealth fields changed.
payload: delivery_health_id, changed_fields, version, occurred_at
delivery_health.recovery_acceptedplanned eventThe accept recovery command completed.
payload: delivery_health_id, prior_status, status, occurred_at
{
"event_id": "evt_01k4...",
"type": "delivery_health.recovery_accepted",
"event_version": 1,
"occurred_at": "2026-07-16T14:22:04Z",
"workspace_id": "ws_abc123",
"resource": {
"type": "delivery_health",
"id": "delivery_health_123"
},
"actor": {
"id": "user_123"
},
"payload": {
"delivery_health_id": "delivery_health_123",
"prior_status": "draft",
"status": "recovery_accepted"
},
"source": null
}Connected Apps
Proposed connection roles
Claude / ChatGPT / IDE clients
Consumer application
Read, explain, and submit bounded delivery health & recovery proposals through MCP.
Authority: Client access never implies domain approval or unrestricted mutation authority.
Slack / Teams / analytics
Action sink
Deliver threshold alerts and reviewed recovery requests.
Authority: Alerts and responses delegate to canonical decision authority.
Open contract decisions
Resolve before implementation approval
- • Which forecast-setting changes belong to direct configuration versus governed recovery decisions?
Proof obligations
| Must remain true | Failure indicator |
|---|---|
| Delivery health, forecast, and recovery services remains the singular canonical owner. | An interface or connector persists a second authoritative lifecycle state. |
| Draft and apply remain separate actions. | An agent or integration silently converts inferred intent into a canonical mutation. |
| Every write is attributable, versioned, and idempotent. | A retry duplicates work or stale state overwrites a newer human decision. |
| Connected App direction and field authority are explicit. | Provider data silently becomes canonical or conflicts are resolved without policy. |