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INFORMATIVEDRAFTprotocol
Truth Source: Repository schemas and tests are authoritative.

Error Handling — Conceptual Overview

Audience: Implementers, Architects Governance Rule: DGP-30

1. What Error Handling Refers To​

Error Handling in MPLP refers to the failure recovery dimension that concerns how the system responds to errors during lifecycle execution. It spans Plan/Step failure states, Trace recording, and compensation strategies.

Error Handling is not an exception framework. It is a conceptual area for failure semantics.

2. Conceptual Areas Covered by Error Handling​

Conceptual AreaDescription
Failure StatesRelates to failed status in Plan and Step modules
CancellationConcerns cancelled status and abort semantics
Error RecordingIs involved in Trace segment error capture
CompensationRelates to rollback and undo strategies

3. What Error Handling Does NOT Do​

  • ❌ Define specific exception types
  • ❌ Mandate retry policies
  • ❌ Prescribe circuit breaker patterns
  • ❌ Define timeout values

4. Where Normative Semantics Are Defined​

Normative SourceWhat It Covers
Plan Module (mplp-plan.schema.json)failed, cancelled status enums
Trace Module (mplp-trace.schema.json)Error segment structure
L3 Execution & OrchestrationCompensation, rollback
Golden FlowsExpected failure handling scenarios

5. Conceptual Relationships​

6. Reading Path​

  1. Plan Module — Status enums
  2. Trace Module — Error recording
  3. L3 Execution & Orchestration — Rollback

Governance Rule: DGP-30 See Also: Error Handling Anchor (Normative)