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Conventions
Read these once. They hold across every tool.
Time
ISO 8601, UTC. Every read accepts as_of (default now, or the pinned as_of of an open decision). available_at records when an item became knowable — the server stamps it itself.
Proposals
Agents write status=proposed — memory, edges, learnings. Humans approve, out of band. No write tool can promote its own proposal.
Token protocol
L0 bootstrap card (~200 tokens) → L1 summaries + ids → L2 full cards by id. No tool ever dumps raw chunks unrequested.
Versioning
/v1 · schemas dated; breaking changes get a new path, never a silent edit. capability_status marks what is implemented vs interface_only.
Every tool returns the object documented on its page. Errors share one shape — see Errors & limits.