> ## Documentation Index
> Fetch the complete documentation index at: https://docs.spineworkspace.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Technical Account Success Architecture: Projection Design

> How the Technical Account Success domain is architected as a Spine Fabric projection including the domain contract and reference to platform architectures.

Technical Account Success is architected as a domain projection over Spine Fabric. It does not maintain separate data stores. All technical context is assembled on demand from the unified entity graph and governed by a domain contract.

## Domain Contract

```yaml theme={null}
domain:
  name: technical-account-success
  purpose: technical customer management, implementation, integration, architecture guidance
  personas:
    - tam
    - solutions_engineer
    - support_engineer
  entities:
    - TechnicalAccount
    - SystemArchitecture
    - Integration
    - Implementation
    - TechnicalIssue
    - HealthScore
    - APIUsage
    - TechnicalDebt
  source_systems:
    - salesforce
    - zendesk
    - datadog
    - github
    - jira
    - api_gateway
  views:
    - ImplementationPortfolio
    - TechnicalHealth
    - ArchitectureReviews
    - IntegrationStatus
    - APIUsageDashboard
    - TechnicalDebtTracker
    - TechnicalEscalations
    - ImplementationTimeline
  workflows:
    - Implementation
    - TechnicalEscalation
    - ArchitectureReview
    - Onboarding
    - HealthAudit
  agents:
    - twin
    - implementation_agent
    - integration_agent
    - architecture_agent
    - technical_escalation_agent
    - health_audit_agent
  capabilities:
    prefix: technical_account_success
    categories:
      - read
      - write
      - communication
      - workflow
```

## Projection Architecture

The Technical Account Success projection is a read model over Spine Fabric. When a TAM queries their implementation portfolio, Spine executes projection logic against current unified entities. Cache is only used when sources are unreachable and labeled with freshness.

## Context Assembly Architecture

Context assembly uses the entity graph, event log, and relationship index. For a technical account query, Spine traverses architecture, integrations, issues, API usage, and deployments. Domain scoping rules filter by ownership, environment, and time.

## Agent Architecture

Twin orchestrates domain agents through intent messages. Agents have isolated skill implementations but share the context fabric. The Integration Agent does not access Jira directly; it requests scoped context from Spine Fabric.

## Capability and Workflow Architecture

Capabilities are defined in the platform capability registry and bound to Technical Account Success at runtime. Workflows are state machines with transitions, approval gates, and receipt generation. See platform capability and workflow documentation for the underlying framework.

## Integration Architecture

Connectors manage protocol translation, authentication, and rate limiting. The Datadog connector handles metric queries and alert polling. The Jira connector manages project and issue APIs. The GitHub connector reads repository and deployment data. See platform connector architecture for patterns.

## Event Architecture

Technical Account Success emits and consumes domain events through Spine Fabric's event bus. Events are typed, versioned, and routed. Continuity persists session events for cross-session state reconstruction.

## Related

* [Technical Account Success Index](/internal-docs/domains/technical-account-success/index)
* [Spine Fabric](/internal-docs/domains/technical-account-success/spine-fabric)
* [System Flow](/internal-docs/domains/technical-account-success/system-flow)
* [Execution Flow](/internal-docs/domains/technical-account-success/execution-flow)
* [Platform Spine Fabric](/platform/spine-fabric)


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