cortex-mailbox-poll

name	cortex-mailbox-poll
description	Use when wiring the canonical cortex inbox+outbox polling loop into Claude Code's /loop. This is the orchestration spine — every empirica claude polls Cortex on a fast adaptive cadence (30s base, 5m max) for proposals addressed to itself + status changes on its own outgoing proposals. Self-throttles when an empirica transaction is open (the AI is already busy; no need to interrupt). The canonical loop catalog (empirica/core/cockpit/canonical_loops.py) auto-installs this when the TUI cockpit toggles L on an instance that has no loops registered. This skill is the body the AI runs each fire.
version	1.1.0

Cortex mailbox-poll cron loop wiring

The Phase 1 canonical orchestration loop. Every empirica claude polls Cortex inbox+outbox on a fast adaptive cadence so peer proposals and status changes route in seconds, not on the next user prompt.

This skill is a thin wrapper over /loop-cron — same self-scheduling template, with cortex_inbox_poll + cortex_outbox_poll MCP calls plugged in as the body.

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Harness portability — flat tool names are the Claude Code form

Every mcp__cortex__cortex_* name in this skill is the Claude Code calling convention, where each MCP tool is exposed as its own flat tool. Namespace-aggregating harnesses (codex / ecodex, the OpenAI Responses-API) instead collapse a whole MCP server's toolset into ONE namespace tool — mcp__cortex — driven by an operation + params interface. There you invoke the cortex operation through that namespace tool (operation=cortex_inbox_poll, params={…}); a flat mcp__cortex__cortex_inbox_poll call parses to a non-namespaced tool name, matches nothing, and returns unsupported call.

Rule of thumb: read every mcp__cortex__<op> below as "the cortex operation <op>" and call it however your harness surfaces cortex tools — a flat tool in Claude Code, the mcp__cortex namespace tool + operation param in codex/ecodex. The operations and their params are identical across harnesses; only the invocation shape differs.

Simpler: the empirica mailbox poll CLI (harness-agnostic receive path)

The whole namespace-shape problem above evaporates if you poll via the CLI instead of the MCP tool. empirica mailbox poll is a thin wrapper over the same GET /v1/orchestration/inbox that cortex_inbox_poll hits — a plain shell command every harness runs identically, no namespace gymnastics:

empirica mailbox poll --ai-id <your-canonical-3-form> --output json
# receive side, symmetric with `empirica mailbox reply` (the send/ack side)
#   --outbox                  poll YOUR emissions' status changes instead
#   --status accepted,changed default wake-react set (NOT eco_review — the CLI
#                             exists to react to ECO-decided wakes)
#   --since <ISO8601>         incremental polling
#   --limit 20 · --related    match cortex_inbox_poll defaults
empirica mailbox show <proposal_id> --output json   # one proposal's full body
empirica mailbox archive <proposal_id>              # soft-delete from inbox view

Prefer the CLI on tool-aggregating harnesses (codex/ecodex). A woken idle practitioner told to run empirica mailbox poll as its FIRST action succeeds with no open transaction — the mailbox verbs are Sentinel-whitelisted (reads → Tier 1, reply/archive → Tier 2), so they flow pre-transaction. The MCP cortex_inbox_poll remains valid everywhere; the CLI is the reliable receive path when the namespace call shape is fragile.

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When to Use

Register the canonical mailbox-poll cron when:

• You're setting up a new empirica claude instance and want it to join the orchestration mesh (react to proposals routed via cortex_propose)
• The TUI cockpit auto-installed cortex-mailbox-poll via the canonical catalog (see empirica/core/cockpit/canonical_loops.py) and surfaced a pending install request — this skill is the body
• You want fast collaboration cadence (30s base) without the overhead of polling when you're already busy (self-throttle)

If your project has a custom inbox poll already (e.g. outreach-inbox-poll, eco-inbox-poll in .empirica/project.yaml), use that instead — the project-specific config takes precedence over this canonical default.

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AI_ID convention

Your ai_id is the exact name of your project (directory basename, empirica- prefix KEPT). The full convention lives in ~/.claude/empirica-system-prompt.md (canonical) + empirica-org-prompt.md (org-specific aliases) + wire-level detail in docs/architecture/EVENT_LISTENER.md. Quick reference:

Project root	ai_id
~/empirical-ai/empirica	empirica
~/empirical-ai/empirica-cortex	empirica-cortex
~/empirical-ai/empirica-outreach	empirica-outreach

Shorter human aliases (cortex, outreach, etc.) live in the org-prompt layer and are used in chat — but not on the wire.

Read your canonical id from .empirica/project.yaml's ai_id field (set by setup-claude-code at project init). Use it in session-create --ai-id <id>. For target_claudes and source_claude, use the canonical 3-form <org>.<tenant>.<exact-project-name> (e.g. empirica.david.empirica-cortex) — bare basenames bounce via delivery_failed.

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Reaction Protocol — content events (push-primary)

The SessionStart session-monitor-arm.py hook arms a Monitor on empirica loop listen --instance <your-id> — the push-primary listener that holds an ntfy stream to Cortex and emits one stdout line per ECO-decided proposal event. Each line is a <task-notification> wake event into this session.

Content event (the wake signal you should usually act on)

{"event_type": "proposal_event",
 "proposal_id": "prop_abc",
 "proposal_title": "Surface project block on daemon HTTP",
 "status": "accepted",
 "action_category": "TACTICAL",
 "eco_actor": "eco-phone",
 "change_kind": "new",
 "instance_id": "<you>",
 "loop": "cortex-mailbox-poll",
 "ts": "..."}

The empirica loop tick body polled Cortex and diffed against last-seen state. This event IS the content — you don't need to poll inbox/outbox yourself. Each event represents one ECO-decided proposal (accepted / changed / declined).

ECO-gated autonomy property: every action you take ultimately traces back to eco_actor's decision. Even if the timer or fires log were compromised, your re-verification via cortex_inbox_poll(status="accepted") against the proposal_id is the auth boundary — Cortex only returns ECO-decided state. Hijacking the wake signal cannot widen your authority.

Step 0 — Recipient gate (always check this first)

Before any of the below, verify the event is addressed to YOU. The shared loop_fires.log carries events for every AI on the mesh; the Monitor that bridges those fires into your session is supposed to grep '"instance_id": "<your-ai-id>"', but a session armed before that filter existed — or one set up wide for debugging — will see the whole stream. Defense in depth: check before you act.

target_claudes is the authoritative recipient list, not instance_id. instance_id identifies which AI's loop emitted the event into the shared log; target_claudes (on the underlying proposal) identifies who the proposal is FOR. These often agree but they are not the same field — confusing them is the most common way real messages get silently dropped.

Branching logic, in order:

1. Read your own ai_id from .empirica/project.yaml ai_id: field, or fall back to the exact directory basename (prefix kept, strict-canonical — empirica-cortex stays empirica-cortex).

2. If event["instance_id"] == your ai_id — fast path. The event came through your own loop, so it's already targeted to you. Proceed to the direction-specific handler below. No proposal fetch needed just for the gate.

3. If event["instance_id"] != your ai_id — DO NOT silently ignore. Your Monitor is in broadcast mode (visible in its description: phrases like "all events", "not filtered by instance_id", "corrected" are tell-tales). Fall through to step 4 — target_claudes decides, not instance_id.

4. Resolve target_claudes for this event. Cheap path: if you've recently polled your inbox you already know the proposal_id and can look it up locally. Otherwise fetch with cortex_get_proposal( proposal_id=event["proposal_id"]). Then:

   • your ai_id IN target_claudes → proceed to the direction-specific handler below. This is a real message for you that came in via a broadcast or peer-emitted Monitor.
   • your ai_id NOT IN target_claudes → silently ignore. The event is observable noise from other AIs' loops, no action.

5. If you keep hitting step 4 repeatedly (more than ~3 events per session), your Monitor is set up wrong. Re-arm with the correctly-filtered command via empirica setup-claude-code --force or empirica listener on --output json (whose next_step.args.command pins the grep filter for your ai_id). Fixing the Monitor at the source is cheaper than per-event cortex_get_proposal calls.

Catch-up safety net: at session start, after long pauses, or any time you suspect Monitor drops, run cortex_inbox_poll(ai_id=<you>, status="accepted,changed") directly. The Monitor is the push path for liveness; the inbox poll is the pull path for correctness. Both should agree; the poll wins on disagreement.

Authoritative delivery model (David-ratified 2026-06-21). The mailbox is the source of truth; push is liveness only. A wake event is a low-latency nudge that something actionable landed — never the authority for what happened. Never act irreversibly on a push alone: the durable proposal state (poll / cortex_get_proposal) is what you reconcile against. Consequences:

• You don't need a reaction branch for every status. A dropped wake, a failed completion, an un-acked emission — all are reconciled on your next poll, not chased through the push stream.
• Cortex does not babysit delivery. There is no reminder / retry / escalation nag (that chain is retired — see /inbox-listener). Send-side reliability is the sender's job: refire on a delivery_failed bounce (see /cortex-mailbox-send).
• Autonomy is the systemic crack-net. Anything that genuinely slipped (a completion that failed, an item that landed but was never picked up, a send that bounced and wasn't refired) is swept by the canonical autonomy watch-layer — one quiet sweep with judgment, not N noisy per-message timers. You are not individually responsible for chasing every dropped signal; the sweep covers the tail.

What to do — depends on direction:

direction: "inbox" — proposal is FOR you (ECO-gated)

The proposal targets this AI. ECO has decided. Authorization to act is verified by the status field (accepted/changed/declined — never eco_review).

1. If mid-transaction: log a goal using the exact convention so the POSTFLIGHT deferred-proposals nudge can surface it later:

   empirica goals-create \
     --objective "Process proposal <proposal_id>: <title>" \
     --description "From <source_claude>. Direction=<direction>, status=<status>. \
                    Original ask: <summary>. \
                    Complete via cortex_complete_proposal + goals-complete."
   

   The literal token prop_ (in objective OR description) is what the POSTFLIGHT retrospective greps for. Pick up at the next natural break (EWM pattern). Do not interrupt the in-flight work.

   Before POSTFLIGHT of the in-flight transaction, scan for open proposal-derived goals (empirica goals-list + grep prop_) and either action them now or explicitly roll forward as planned for the next transaction. The retrospective will surface them in the POSTFLIGHT response — don't let them slip past after you close the window.

2. If idle:

   • status accepted → fetch full proposal via cortex_inbox_poll(ai_id=<you>, status="accepted") and find this proposal_id, then execute the payload (code change, follow-up emit). When done, mark it completed via the cortex completion primitive so the source AI gets the ack — this is the AI-to-AI handshake.
   • status changed → ECO requested refinement of a proposal SOMEONE ELSE sent that targets you. Read eco_decision.note and proceed with the adjusted scope.
   • status declined → ECO said no to something pointed at you. Update mental model; no action needed.

3. Archive via cortex_archive_proposal after handling.

direction: "outbox" — proposal is FROM you (ack-style, no ECO gate)

A proposal you emitted earlier just transitioned state. ECO already decided when it went out — these events are informational acks for the source AI.

• status completed / shipped → Target AI finished your work successfully. Event carries commit_sha so you can trace the landing. Log a finding (empirica finding-log) noting the completion + commit. If there's a next-step you were waiting on, chain to it now.
• status failed / wont_fix → Target AI did NOT land the work (tried and couldn't / declined to). These are honest completion outcomes, not error events — first-class results cortex emits verbatim (since fix dbc1de5). Do not chain the next step as if it shipped — that leg is dead. Read the reply note, reconcile, decide (re-scope / re-propose / drop). No frantic handling: it's informational and poll-visible — if you were asleep when it fired, your next outbox poll shows it and the autonomy watch-sweep catches any that slip. (Per the authoritative delivery model above: failure is a reconcile-on-poll state, not a push-reaction branch.)
• status changed → ECO sent your emission back for refinement. Read eco_decision.note and emit a parent_id-linked refined proposal via cortex_propose.
• status declined → ECO rejected your proposal. Update mental model. Optionally log a decision artifact noting why it didn't fly so you don't re-propose.

Outbox accepted is NEVER surfaced (informational — target will act on the next tick of their inbox poll). Saves chat noise.

event_type=ser_escalation — SER re-ping (LIVE; env-gated)

A separate wake shape rides the same proposal_event channel when an SER you're a required-tier participant of has been idle past its escalation interval and you haven't acked since the last transition. Cortex emits these from system:ser-escalation (env-gated by CORTEX_SER_ESCALATION_ENABLED; interval CORTEX_SER_ESCALATION_INTERVAL_S, default 600s). The listener delivers them two ways: the live ntfy doorbell is relayed straight from the push body (via: push_relay), and a dropped doorbell is recovered on the next catch-up by reconciling from /v1/sers (via: catchup_reconcile). Both paths are needed because ser_escalation has no proposal-store row, so the proposal-only catch-up can't reconstruct it.

The shape that lands in your session (what the relay writes) — note event_type is the shape itself, the cortex-side event key is promoted into it and dropped, and via tags the delivery path:

{"ts": "...", "instance_id": "<you>", "loop": "cortex-mailbox-poll",
 "event_type": "ser_escalation",
 "ser_id": "ser_xxx", "ser_state": "in_progress",
 "source_claude": "system:ser-escalation",
 "target_claudes": ["<your_canonical_id>"],
 "escalation": true,
 "idle_for_seconds": 14400,
 "via": "push_relay"}

Discriminator: event_type == "ser_escalation" (NOT "proposal_event") routes this as a non-proposal wake — proposal handlers keyed on event_type=="proposal_event" correctly skip it. escalation=true distinguishes re-pings from first delivery; source_claude=system:ser-escalation identifies the cortex internal emitter. via tells you the delivery path (push_relay = live doorbell; catchup_reconcile = recovered from /v1/sers after a dropped doorbell).

What to do:

1. Verify it's for you — your ai_id IN target_claudes. Cortex currently relies on the SER caller to set target_claudes correctly (caller-controlled per v1; see cortex prop_ealogh defer flag).
2. Re-engage with the SER. Fetch the SER projection:

   GET /v1/sers/{ser_id}
   

   Read coordination_state, last_transition_at, last_transition_actor, and your row in participants[] (your last_action_at, last_ack_at). The escalation fires because either:
   • You haven't acted (your last_action_at < last_transition_at), and the SER needs you to transition / ack / contribute, OR
   • You haven't even acked the last transition (last_ack_at IS NULL or < last_transition_at)
3. Act, then ack to silence the next tick. Either:
   • Take the substantive action (transition the SER via cortex_propose(payload.action='transition_ser', transition_spec=...)), OR
   • If just acknowledging receipt without state change is the right posture (e.g. an SER you're observing but not blocking on), emit cortex_propose(payload.action='ser_ack', ack_spec={...}) — this stamps your last_ack_at and suppresses the next escalation tick for you until the SER's next transition (spec §5.3 — read-and-waiting participants don't get spammed).
4. Closed SERs never escalate. If coordination_state=closed when you fetch, the tick was racing closure — no action needed.

If mid-transaction, follow the same defer-as-goal pattern as inbox proposals: log a goal "Process ser_escalation: <ser_id>" and pick up at the next natural break. SER escalations are designed to wait — the next tick fires another 10min later, not immediately.

Heartbeat event (content-free)

{"ts": "...", "instance_id": "<you>", "loop": "cortex-mailbox-poll"}

Some loops emit content-free heartbeats. If you receive one (no event_type field), fall through to the Cron Prompt Template below — poll inbox/outbox manually via MCP. This path costs more tokens; prefer the content-event path when available.

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Adaptive cadence model

Signal	Effect
Self has open empirica transaction	Skip poll (return paused result) — caller is busy, no interruption
Poll returns new items	Reset streak → next fire at base (30s)
Poll returns nothing	Advance streak → next fire grows toward max (5m)
Poll fails	Reset streak — retry at base, don't compound delay

This is the same --backoff exponential pattern as /loop-cron, with base 30s and max 5m. The faster floor reflects that orchestration is interactive — 15m is too slow when a peer Claude is waiting.

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Resolving ai_id for the poll

Cortex inbox/outbox are scoped to a specific AI identity (e.g. empirica-outreach, empirica-cortex, empirica-extension, empirica-autonomy, empirica). The body resolves ai_id from project context, in this order:

1. Project's .empirica/project.yaml — read the ai_id: field (canonical per-project value, set by setup-claude-code).
2. Project name fallback — use the directory basename as-is (keep the empirica- prefix).
3. EMPIRICA_AI_ID env var — last-resort explicit override (for environments that don't have a project file).

If none resolves, the body emits a fail heartbeat with the unresolved-ai_id error and lets the user fix the project's CLAUDE.md.

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Cron Prompt Template

When invoking /loop in cron mode, prepend these CLI lines to your task prompt. Variables already filled — the canonical preset is fixed by the catalog entry (30s base, 5m max).

At start (idempotent — safe to call every fire):
  empirica loop register --name cortex-mailbox-poll --kind interval \
    --interval 30s \
    --description "Poll Cortex inbox + outbox for orchestration messages (canonical)" \
    --backoff exponential --base-interval 30s --max-interval 5m

Check pause — exit silently AND don't schedule next fire if paused:
  PAUSED=$(empirica loop status cortex-mailbox-poll --output json | jq -r .paused)
  if [ "$PAUSED" = "true" ]; then
    empirica loop heartbeat cortex-mailbox-poll --status ok --result paused \
      --message "skipped, paused"
    exit 0
  fi

Self-throttle — if an empirica transaction is open, the caller is
already engaged. Don't interrupt; just freeze the streak.
  TX_OPEN=$(python3 -c "
from empirica.utils.session_resolver import InstanceResolver as R
tx = R.transaction_read()
print('true' if tx and tx.get('status') == 'open' else 'false')
")
  if [ "$TX_OPEN" = "true" ]; then
    empirica loop heartbeat cortex-mailbox-poll --status ok --result empty \
      --message "self-throttle: transaction open"
    NEXT_CRON=$(empirica loop schedule-next cortex-mailbox-poll --output json | jq -r .cron_one_shot)
    # CronCreate(cron=$NEXT_CRON, recurring=false, prompt='<this template again>')
    exit 0
  fi

Resolve self ai_id from project context:
  AI_ID=$(python3 -c "
import os, re
from pathlib import Path

# 1. Project's CLAUDE.md
for parent in [Path.cwd()] + list(Path.cwd().parents):
    claude_md = parent / 'CLAUDE.md'
    if claude_md.exists():
        text = claude_md.read_text()
        m = re.search(r'(?:^|\n)\*?\*?AI_ID:?\*?\*?\s*[\`\"]?([a-z0-9_-]+)[\`\"]?', text, re.IGNORECASE)
        if m:
            print(m.group(1)); raise SystemExit
        break

# 2. Project name fallback (use directory basename as-is, keep prefix)
project_path = os.getcwd()
name = Path(project_path).name
if name:
    print(name); raise SystemExit

# 3. Env var override
ai_id = os.environ.get('EMPIRICA_AI_ID')
if ai_id:
    print(ai_id); raise SystemExit

raise SystemExit(1)  # unresolved
")
  if [ -z "$AI_ID" ]; then
    empirica loop heartbeat cortex-mailbox-poll --status fail --result fail \
      --message "unresolved ai_id (no CLAUDE.md AI_ID line, no project name fallback, no EMPIRICA_AI_ID env)"
    NEXT_CRON=$(empirica loop schedule-next cortex-mailbox-poll --output json | jq -r .cron_one_shot)
    exit 0
  fi

Poll inbox via MCP — react to new proposals addressed to self.
The api_key for cortex_* MCP tools is read by the MCP server itself
from ~/.empirica/credentials.yaml; no need to pass it explicitly.
  Call mcp__cortex__cortex_inbox_poll(ai_id=$AI_ID)
  INBOX_NEW=<number of new items returned>

  For each new item:
    - If type=collab_brief: AUTO-REACT — read the payload, log a
      finding-log for durability, and post a reply via
      `empirica mailbox reply --parent-id <pid> --result shipped` (the
      atomic propose+complete verb closes the loop). Do NOT
      surface-and-wait. Collab is noetic/ungated — the human is the
      gate ONLY for ECO-gated typed proposals (see below) and for
      your own returning outbox state changes (status=changed/declined).
      If a collab asks you a question, answer it directly; the
      AI-to-AI substrate exists so the human doesn't have to dispatch.
    - If type=spec_updated: ack with cortex_archive_proposal once you've
      consumed the change
    - If type=architecture_decision / code_change_request / publish /
      trust_escalation_request: these are ECO-gated typed proposals.
      Surface to the user — they need explicit human Accept/Decline
      before action. Do not auto-execute the underlying work.
    - For any item with parent_id: link your follow-up via parent_id

Poll outbox via MCP — emit follow-ups for proposals that came back
as 'changed' (peer/user requested a refinement).
  Call mcp__cortex__cortex_outbox_poll(ai_id=$AI_ID, status=changed)
  OUTBOX_CHANGED=<number of changed proposals>

  For each changed proposal:
    - Read the refinement note
    - Compose an updated proposal with parent_id pointing to the original
    - Submit via cortex_propose (parent_id linking back closes the loop)

Determine result for backoff signaling:
  if [ "$INBOX_NEW" -gt 0 ] || [ "$OUTBOX_CHANGED" -gt 0 ]; then
    RESULT=found
    SUMMARY="ai_id=$AI_ID inbox=+$INBOX_NEW outbox-changed=+$OUTBOX_CHANGED"
  else
    RESULT=empty
    SUMMARY="ai_id=$AI_ID no activity"
  fi

At end — heartbeat with result, schedule + install the next fire:
  empirica loop heartbeat cortex-mailbox-poll --status ok --result $RESULT \
    --message "$SUMMARY"

  NEXT_CRON=$(empirica loop schedule-next cortex-mailbox-poll --output json | jq -r .cron_one_shot)
  # CronCreate(cron=$NEXT_CRON, recurring=false, prompt='<this whole template again>')

  # Heartbeat back the scheduler-returned job_id so pause can cancel:
  empirica loop heartbeat cortex-mailbox-poll --status ok --result $RESULT \
    --next-scheduled-job-id "$JOB_ID" --scheduler-kind cron-create

On MCP failure (network, auth, unexpected error):
  empirica loop heartbeat cortex-mailbox-poll --status fail --result fail \
    --message "{error message}"
  # Failure retries at base — schedule-next still returns base interval.

---

Self-throttle

If R.transaction_read() returns an open transaction, the body returns empty (not paused) — streak grows toward max_interval. Resumes on next fire after POSTFLIGHT.

---

Handling received items

The body shape above lists the rough decision tree. Detailed handling per proposal type:

type	Gate	Default action
collab_brief	None (noetic, ungated)	Auto-react: read payload, log finding-log, post a reply via empirica mailbox reply --parent-id <pid> --result shipped (atomic propose+complete). If the collab asks a question, answer it; if it shares context, ack/integrate it; if it converges, graduate to cortex_propose per the send-side discipline. Do NOT surface-and-wait — the human-as-dispatcher pattern breaks the AFK/ambassador model.
spec_updated	None	Read spec at payload.path, log finding-log "consumed spec X", archive via cortex_archive_proposal
architecture_decision	ECO-gated at the proposal layer	This is an inbound typed proposal targeting YOU as an executor. You DO the work after ECO accepts; ECO's Accept/Decline IS the gate, not a separate "ask the human if I can act" step. If status=accepted and you're in target_claudes, the human already authorized you — proceed.
code_change_request	ECO-gated at the proposal layer	Same: ECO already gated it. On status=accepted, do the code work + ack via empirica mailbox reply.
investigation_request	None (auto-reflex)	Run the investigation via cortex_research or local tools, post results via reply collab_brief
publish	ECO-gated at the proposal layer	On status=accepted, compose + dispatch per the spec
trust_escalation_request	ECO-gated at the proposal layer	On status=accepted, apply the trust change

ECO gating IS the proposal's Accept/Change/Decline status. Auto-emit on convergence; act on status=accepted for typed proposals targeting you. Do NOT re-ask the human at either end.

Surface to user only:

• direction=outbox, status=changed — read the change-note + emit refinement with parent_id. Only surface if the note needs clarification you can't infer.
• direction=outbox, status=declined — surface so the user can correct the model. Update beliefs; don't re-emit without new evidence.

For any proposal requiring action, open an empirica transaction (PREFLIGHT) to record the work. The poll itself is lightweight — detect + route, don't do the work inline.

Conceptual context: empirica/docs/human/end-users/MESH_CONCEPTS.md.

---

Visibility

Once registered, the loop appears in:

empirica status              # current instance — cortex-mailbox-poll: 30s, last fire X ago
empirica status --all        # every Claude across every terminal

…showing the adaptive interval (current streak position), last fire result, and pause state. From the TUI cockpit, press L on the instance to toggle pause/resume globally.

---

Related

• /loop-cron — the underlying registry-wiring template this skill wraps
• empirica/core/cockpit/canonical_loops.py — catalog entry that auto-installs this loop
• docs/architecture/COCKPIT.md — full state-file layout
• cortex_propose, cortex_inbox_poll, cortex_outbox_poll, cortex_archive_proposal — the MCP tools this body wires up