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Glossary

Term Definition
daari Apache 2.0 local execution router (Telugu: path, way)
Tier Level in the routing stack (L0–L6, Lt)
L0 Exact cache — identical prompt → instant hit
L1 Semantic cache — similar meaning → reused response
L2 Rules — deterministic transforms, no model
Lt Tool-native — CLI/IDE execution without AI
L3 / L4 / L5 Small / medium / large local models
L6 Frontier cloud API — last resort
$0 tier L0, L1, L2, or Lt — zero marginal inference cost
CCS Command context store — reuse command output across turns
PolicyEngine Lt allow / deny / ask before shell execution
Boundary Product-domain scope gate (in / out / ambiguous)
Guardrail Regex/heuristic safety check (injection, PII, secrets)
daari_meta Per-response routing metadata (tier, cache_hit, trace_id, …)
Virtual key Hashed API key with budgets / RPM / tier caps
Local-first Prefer on-machine tiers before cloud
Org cache Optional shared L0/L1 for a fleet