maxx — one tally for what you can spend right now.

• Maxx Emit — Report this session's token-usage metadata (counts only, never content) to the central maxx budget tally. Call at checkpoints during a long run and once at the end. A cloud routine cannot read /usage, so leave `anchor` unset.
• Maxx Budget — Read this account's live token budget from the central maxx tally. THE RULE: maxx COUNTS, Anthropic LIMITS. Nothing in this payload can deny you work — the only things that stop a call are Anthropic's own 5h and weekly windows, and they enforce themselves by rejecting it. Pace against block_share_pct: the percentage of your WEEK that THIS 5h block may spend (what remains of the week ÷ the 5h blocks left in it), paired with block_used_pct, what it has spent, on the same denominator so the two com
• Maxx Reserve — Reserve part of this block's share before spawning agents, so concurrent dispatchers don't double-spend the same allowance. Sizes are PERCENT OF THE WEEK — the same scale as block_share_pct — so a fan-out you expect to cost about a fifth of this block's share reserves that fifth. Granted leases subtract from the allowance other callers compute (block_share_pct minus block_used_pct minus reserved_pct) and auto-expire at ttl_sec. Returns {granted, lease_id, remaining_pct}. Pass your existing lease
• Maxx Release — Release a reservation lease when the fan-out it guarded completes (or is cancelled). What was actually spent is already in the tally via maxx_emit; releasing returns the UNSPENT hold to the allowance every other dispatcher sees, immediately instead of after TTL. Returns {ok, released}.

Schemas and invoke metadata: Directory API