MCPFax Agent Continuity

Name: MCPFax Agent Continuity
Author: com.mcpscores

MCP serverMCP

Resume the work, not the conversation. A checkpoint by one model is resumable by another.

by com.mcpscoreshomepage ↗v1.1.1

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30-day availability109/109 checks ok

when	check	result	http	latency	detail
33 min ago	mcp initialize	ok	200	11 ms	server com.mcpscores/agent-continuity 1.1.1 · protocol 2025-06-18 · 33 tools
8 h ago	mcp initialize	ok	200	19 ms	server com.mcpscores/agent-continuity 1.1.1 · protocol 2025-06-18 · 33 tools
15 h ago	mcp initialize	ok	200	105 ms	server com.mcpscores/agent-continuity 1.1.1 · protocol 2025-06-18 · 33 tools
21 h ago	mcp initialize	ok	200	11 ms	server com.mcpscores/agent-continuity 1.1.1 · protocol 2025-06-18 · 33 tools
28 h ago	mcp initialize	ok	200	13 ms	server com.mcpscores/agent-continuity 1.1.1 · protocol 2025-06-18 · 33 tools
35 h ago	mcp initialize	ok	200	32 ms	server com.mcpscores/agent-continuity 1.1.1 · protocol 2025-06-18 · 33 tools
2 d ago	mcp initialize	ok	200	20 ms	server com.mcpscores/agent-continuity 1.1.1 · protocol 2025-06-18 · 33 tools
2 d ago	mcp initialize	ok	200	15 ms	server com.mcpscores/agent-continuity 1.1.1 · protocol 2025-06-18 · 33 tools
2 d ago	mcp initialize	ok	200	17 ms	server com.mcpscores/agent-continuity 1.1.1 · protocol 2025-06-18 · 33 tools
3 d ago	mcp initialize	ok	200	18 ms	server com.mcpscores/agent-continuity 1.1.1 · protocol 2025-06-18 · 33 tools

Tools observed via MCP handshake

register — Create a durable identity for an agent. Returns an agent_secret (the only credential; store it in the agent's configuration the way you would an API key — an am
whoami — Report this namespace's public address, registration time, and mailbox counts: how many items exist, how many are due right now, when the next one falls due, an
claim — Exactly-once guard for work that costs money or has side effects. The first call for a key returns granted:true and is FREE. Every later call for that key retur
complete — Attach the outcome to an idempotency CLAIM you hold — NOT for finishing a mailbox task (use inbox_ack) or a queue item (use work_done). A later duplicate attemp
lease — Mutual exclusion so two instances of the same agent do not both process one item. Returns acquired:true with a fence token (FREE), or acquired:false naming the
lease_renew — Extend a lease you still hold, using the fence token you were given. FREE. Fails (renewed:false) if the lease expired or was taken by someone else — treat that
lease_release — Release a lease you hold so the next worker can take it immediately instead of waiting for the TTL. FREE. If you no longer hold it we REFUSE rather than free so
resume_packet — THE HEADLINE TOOL. Returns a briefing, not an archive: objective, last verified state, what arrived while you were gone, the single next action, files, risks, o
checkpoint_put — Save where the work got to, in a STRUCTURED shape so the next invocation can actually act on it. FREE. `objective` and `next_action` are REQUIRED and a checkpoi
checkpoint_get — Fetch the last checkpoint verbatim — what was stored, with no briefing composed around it. Most callers want resume_packet instead, which folds in what arrived
watermark_set — Record how far you got through a stream, feed or table so the next invocation knows where to start. FREE. The position is an opaque string we store verbatim and
watermark_get — Fetch the position you last recorded for a stream, so you can ask an upstream only for what is new. $0.002 ONLY when a watermark exists AND its position has mov
seen_add — Record items you have already processed. FREE. Items are stored ONLY as salted SHA-256 digests — we can test membership but cannot read, list or reconstruct wha
seen_check — Given a batch of items, return only the ones not already in the set — the work you actually still have to do. $0.002 ONLY when we filter at least one item out,
retry_state — Durable retry bookkeeping, so backoff survives the session that died. Returns the attempt count, first and last attempt times, and a deterministic suggested bac
send — Agent-to-agent mail. Queue a rich task envelope addressed to any registered agent so it finds the work waiting whenever it next starts. Nobody waits and nobody
inbox_schedule — Leave work for your own next invocation — the same as send() addressed to yourself. FREE. No callback URL is required or accepted: agents are not web services a
inbox_poll — Collect the next due task envelope from your mailbox. One envelope per call. The item is claimed with a visibility timeout: ack it when done, or it returns to t
inbox_ack — Acknowledge a task you finished. FREE and idempotent — acking twice is not an error. If the task was a repeating schedule, the next occurrence is queued now. An
inbox_nack — Explicitly return a claimed task to the queue instead of waiting for its visibility timeout, optionally deferring it. FREE. Redelivery of the same task_id is al
heartbeat — AN AGENT CANNOT DETECT ITS OWN DEATH — from the inside, 'I stopped' and 'I am about to do the next step' are the same thing. Only something outside the process
budget_record — An agent cannot see its own spend across sessions, so runaway cost is invisible until the bill arrives. Append one amount to this scope's ledger. FREE and APPEN
budget_check — What this unit of work has actually cost across every session, with a per-label breakdown and a lifetime total. If a limit is set (or you pass one here) we repo
barrier_create — Fan work out to N agents and have the LAST one to finish wake the joiner. FREE. A BARRIER THAT WAITS FOR ALL N IS A HANG WAITING TO HAPPEN, so stragglers are th
barrier_signal — Report that one participant finished, optionally attaching a payload the joiner will receive. FREE and IDEMPOTENT PER PARTICIPANT — the same participant_id sign
barrier_status — Progress on a join point: how many of the expected participants have signalled, which ones, who is still outstanding, and whether the completion or timeout enve
work_push — THE ALTERNATIVE TO THIS IS WRITING DISTRIBUTED WORK-DISTRIBUTION CODE YOURSELF — assignment, collision avoidance, lease expiry, retry, dead-worker recovery, str
work_take — Take up to n items, LEASED not deleted — the same lease semantics as lease()/renew()/release(): a holder, a fence token, an expiry. Two workers can never be han
work_done — Complete an item you hold. FREE. If your lease already expired and the item went back to the queue we REFUSE with lease_lost rather than accepting a result from
work_fail — Report that an item did not work out. FREE. THIS IS ALSO THE CORRECT WAY TO HAND AN ITEM BACK WHEN NOTHING WENT WRONG — there is no work_release; retry:true (th
work_status — Turn a fan-out from a black box into something you can act on: how many items are pending, leased, done, failed and dead-lettered, the results collected so far,
job_cancel — There is otherwise NO WAY TO TELL FIVE RUNNING AGENTS TO STOP — they finish and bill you for work you no longer want. This sets a durable stop flag on the job.
should_continue — The check a worker makes between items. $0.002 ONLY WHEN THE ANSWER IS 'no' — that is the call that saved you money, and the first caller told to stop is the on

MCPFax Agent Continuity

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