feat: nightly brain-expand, GPU resource management, memory decay zones#24
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…ecay zones - Add bin/lacp-brain-nightly: cron-ready wrapper with pre-flight checks (disk space, GPU VRAM, knowledge root), log rotation, failure notifications, and --install-cron flag for self-registration - Add gpu_pressure_ok(), acquire_gpu_lock(), release_gpu_lock() to lacp-lib.sh (nvidia-smi check with portable macOS fallback using atomic mkdir) - Add memory decay zone env vars inspired by Ori-Mnemos ACT-R model: LACP_MEMORY_DECAY_IDENTITY (0.1), KNOWLEDGE (1.0), OPERATIONS (3.0) - Add config/lacp-brain-nightly.cron template - Document all new env vars in config/lacp.env.example
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Summary
Adds three capabilities inspired by the ytscribe knowledge refinery architecture and Ori-Mnemos competitor analysis:
1. Nightly brain-expand wrapper (
bin/lacp-brain-nightly)~/.lacp/state/nightly-last-result.json--install-cronflag for self-registration to user's crontabconfig/lacp-brain-nightly.cron2. GPU resource management (
scripts/lacp-lib.sh)gpu_pressure_ok()— checks nvidia-smi for VRAM availability, skips gracefully on macOSacquire_gpu_lock()/release_gpu_lock()— flock on Linux, atomic mkdir on macOS with stale lock detectionLACP_RUNTIME_MIN_GPU_HEADROOM_MB,LACP_RUNTIME_GPU_LOCK_FILE3. Memory decay zones (config only)
Inspired by Ori-Mnemos ACT-R cognitive decay model and three metabolic zones:
LACP_MEMORY_DECAY_IDENTITY=0.1— identity notes barely decayLACP_MEMORY_DECAY_KNOWLEDGE=1.0— standard decayLACP_MEMORY_DECAY_OPERATIONS=3.0— operational notes burn hotKnowledge ingest (Obsidian)
15 notes written to vault inbox via MCP tools:
Test plan
bash -n bin/lacp-brain-nightlysyntax checkbash -n scripts/lacp-lib.shsyntax checkgpu_pressure_okreturns 0 on macOS (no nvidia-smi)acquire_gpu_lock+release_gpu_lockwork on macOSbin/lacp-brain-nightly --helpoutputs usagebin/lacp-test --quickpasses