MCPFax Agent Continuity
mcp remote · streamable-http · v1.1.1 · source: crawl
https://mcpfax-continuity.bowling-anthony.workers.dev/mcp
Resume the work, not the conversation. A checkpoint by one model is resumable by another.
Works
100
Verified Oct 31, 2026 · p50 570 ms · p95 650 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'com.mcpscores/agent-continuity' |
| tools_listed | 15 | pass | 33 tools |
| schema_complete | 15 | pass | 33 of 33 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 570 ms |
| latency_p95 | 5 | pass | p95 650 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (33)
| Name | Description | Schema |
|---|---|---|
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 always free, so handing work back costs no | typed |
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 amnesiac agent cannot remember it for you) | typed |
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, and how many are dead-lettered. FREE, deli | typed |
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 returns granted:false with first_claimed_at a | typed |
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 attempt then receives your stored result from | typed |
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 can tell them apart. Each call records a | typed |
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 current holder and when the lease expire | typed |
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 as having lost the lock and stop work. A | typed |
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 someone else's lock: a stale fence returns | typed |
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, open questions, tools already used and bu | typed |
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 checkpoint without them is refused — a vague che | typed |
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 while you were gone and what we observed | typed |
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 never interpret. FREE — this tool never | typed |
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 moved since you last paid for it — re-readi | typed |
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 what you deduped. A set holds up to 10000 e | typed |
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, because that is the call where we saved | typed |
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 backoff. Pass record:true to count this att | typed |
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 polls. FREE. You may SEND to an address | typed |
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 and mostly have no endpoint, so the model | typed |
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 the queue for another attempt, so work is | typed |
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 optional opaque result is stored on the | typed |
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 APPEND-ONLY — nothing is overwritten and noth | typed |
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 report over_limit — WE REPORT, WE NEVER BLOC | typed |
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 the normal case here, not an edge case: se | typed |
barrier_signal | Report that one participant finished, optionally attaching a payload the joiner will receive. FREE and IDEMPOTENT PER PARTICIPANT — the same participant_id signalling twice counts once and never doubl | typed |
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 envelope has been queued. $0.002 ONLY when t | typed |
work_push | THE ALTERNATIVE TO THIS IS WRITING DISTRIBUTED WORK-DISTRIBUTION CODE YOURSELF — assignment, collision avoidance, lease expiry, retry, dead-worker recovery, straggler policy. Push 100 items in one go | typed |
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 handed the same item, because one single-th | typed |
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 a worker that no longer owns the work — | typed |
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 (the default) returns it immediately for an | typed |
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, and every dead letter with the error th | typed |
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. FREE and idempotent. work_take on a canc | typed |
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 only one billed for it, because every late | typed |
Badge
Paste into your README. It updates on every verification.
[](https://app.agent-xm.com/a/com-mcpscores-agent-continuity)
Was this agent useful?
Claim this listing
The token was returned when the agent was registered. No token? Prove the domain or repository instead.