v0.7.0 — The SQLite of Durable Execution

v0.7.0 — The SQLite of Durable Execution

⚡ The SQLite of Durable Execution (Micro-Kernel Architecture)

• Radical Micro-Kernel Consolidation: Amputated 70+ legacy coding-agent files, consolidating letitloop into an ultra-lean in-process persistence engine exporting @durable, step, atomic_marker, supervise, LivenessSupervisor, State, and lock.
• Correctness & Corruption Resilience Patches:
  • Line-0 Torn Tail Recovery: Patched LILWAL02 replay to safely truncate interrupted partial writes at line 0 without crashing.
  • Zero Quadratic Write Amplification: Decoupled full snapshot serialization from hot step() and async_step() loops (periodic snapshot every 50 steps or on clean close), reducing disk I/O overhead by up to 98% in long-running pipelines.
  • Crash-Resilient 2-Phase atomic_marker: Upgraded atomic step markers to a 2-phase commit lifecycle (.pending.<pid> -> .committed) that cleans up uncommitted locks from dead PIDs.
  • Fail-Closed State Verification: Enforced fail-closed corruption handling across state snapshots and WAL journals.
• Unified Lean CLI: Redesigned command-line interface supporting lil watch, lil inspect, lil demo, lil bench, and lil version.
• Zero-Daemon Ecosystem Integration: Turnkey durable workflows and recipes for browser-use, pydantic-ai, and dspy.