Attempt Ledger Pattern

Purpose

The attempt ledger tracks execution attempts for tasks, enabling:

• Retry with context: Each attempt includes previous failure information
• Gating: Prevents infinite retry loops when tasks consistently fail
• Progress persistence: Resume execution after interruption
• Receipt tracking: Structured summaries instead of full transcripts

Epic Schema

# .agents/relay/epic.yml
version: 2
id: "20260111-feature-name"
source: "docs/plans/xxx.md"
created_at: "2026-01-11T17:30:00Z"