broomva/lago/life-lago

life-lago -- Lago Knowledge Substrate Skill

Universal agent brain stem built on Lago's event-sourced persistence layer.

Operations

Three-Layer Model

Graceful Degradation

When the Lago daemon isn't running, all operations fall back to direct filesystem access on markdown files. The skill detects Lago availability by checking LAGO_URL or localhost:3001.

Access Model

• Life/Arcan agents: Native Rust access via lago-knowledge crate
• Any other agent (Claude Code, Codex, Cursor): This skill provides the same capabilities through CLI commands + markdown output

Event Protocol

All write operations emit canonical aios-protocol EventKind events:

• ObservationAppended for new knowledge ingested
• MemoryProposed -> MemoryCommitted for wiki page writes
• PolicyEvaluated for Nous gate scoring decisions
• StateEstimated for lint health assessments

Integration with Control Kernel

The knowledge substrate feeds the control loop:

• Belief state includes wiki context from wake-up + relevant entity pages
• Nous evaluators score knowledge operations (freshness, coherence, coverage, provenance)
• EGRI can optimize scoring thresholds, search weights, and promotion criteria
• Policy gates enforce knowledge governance (no entity without provenance, no promotion below Nous gate)

Configuration

Environment variables:

• LAGO_URL -- Lago daemon URL (default: http://localhost:3001)
• LAGO_DATA_DIR -- Data directory for standalone mode
• LAGO_WIKI_DIR -- Wiki directory for filesystem fallback

Dependencies

Rust crates used:

• lago-knowledge (BM25, graph, lint, index, ingest)
• lago-core (MemCubes, events, cognitive types)
• lago-store (BlobStore, manifest diff)
• lago-journal (event persistence)