# Independent coverage verification — c06 (destructive maintenance agent)

## Operative archetypes (identified independently via facet decomposition)

This is an oblique problem instantiating several structures at once. Facet retrieval
(search_by_facets) surfaced the operative pair cleanly:

- **irreversible_commitment_management** — top hit (0.76) on the "irreversible action that
  cannot be undone" facet and on "converting a final destructive step into a recoverable
  staged one"; this is the deletion/finality core. The whole problem IS the irreversible
  subset.
- **checks_and_balances_architecture** — top hit on BOTH the "actor judges itself, no
  independent review at the moment of action" facet (0.68) and the "authority/scrutiny
  scaled to consequence" facet (0.74). This is the self-judging-actor core.

Supporting structures that surfaced (fail_safe_default on the uncertainty facet;
accountability_chain_design / accountability prime on the "no durable record" facet) are
genuine but subsidiary; their distinct functions (safe default, durable rationale) are
checked as homologs/instantiations inside the two operative sets below.

The candidate design names this same pair (plus fail_safe, tail_risk, accountability_chain).
I verified the two operative sets independently; coverage judged FROM THE DESIGN ALONE.

---

## Coverage map A — irreversible_commitment_management (13 components)

| Component | Status | Clause |
|---|---|---|
| Irreversibility Check | instantiated | up-front "recoverable or final?" judgment; flags last-copy / unknown-dependents / hard purge |
| Consequence Scope | instantiated | dependency probe surfaces who/what silently depends before teardown |
| Point-of-No-Return Marker | instantiated | "The window is the visible point of no return; everything before it is reversible" |
| Consent or Review Gate | instantiated | independent checker must concur BEFORE the item passes the window; gate sits before threshold |
| Staged Commitment Path | instantiated | holding state (soft-delete/quarantine) then separate delayed reclaimer — destructive act split in two |
| Simulation or Pilot Probe | instantiated | dependency probe runs teardown in shadow form (traffic black-holed, fleet watched) |
| Exposure Limit | instantiated | rate-and-blast-radius cap; large jobs batched and throttled so a bad rule cannot cascade |
| Compensation Rule | homolog | recoverability itself — buffered data/services fully restorable for the window; restoration is genuinely possible here, so restitution is replaced by restore, not declined |
| Finality Record | instantiated | durable record before proceeding: target, why-safe, probe findings, checker verdict, scheduled purge |
| Cooling-Off Period | instantiated | retention window (a week, up to a month) enforced before reclaimer purges |
| Independent Review Panel | homolog | independent automated checker component (own logic), not a human panel — same function: independent concurrence |
| Impact Monitoring Signal | instantiated | fleet watched for breakage during window; spike auto-restores |
| Rollback Residue Assessment | instantiated | window length scales with recovery doubt ("up to a month ... where recovery is doubtful or external copies may not exist") |

Set A: 11 instantiated, 2 homolog, 0 declined, 0 missing.

---

## Coverage map B — checks_and_balances_architecture (11 components)

| Component | Status | Clause |
|---|---|---|
| Power Map | instantiated | design names the three separated roles — proposing path, independent checker, delayed reclaimer — and where each can act |
| Separated Function | instantiated | "checker ... is not the same judgment that decided to act; it is a distinct component"; reclaimer also separate |
| Checking Actor | instantiated | independent checker that must concur before any purge |
| Review Power | instantiated | "power to block the purge or release it" |
| Veto or Remedy Rule | instantiated | checker can block; probe alarm auto-restores and escalates rather than completing |
| Capture or Stalemate Monitor | instantiated | checker concurrence "sampled and audited so it never degrades into a rubber stamp" (anti-capture) + auto-finalize on unobjected window expiry (anti-stalemate) |
| Independence Safeguard | instantiated | checker is "a distinct component with its own logic," reasons independently of the proposing path |
| Coordination Interface | homolog | the shared holding state + finality record is the coordination surface between proposer, probe, and checker (no separate org interface needed for single-agent automation) |
| Escalation Interface | instantiated | "automatically restored and the action is escalated rather than completed"; emergency path to operators |
| Accountability Record | instantiated | durable record incl. checker verdict (same artifact as Finality Record) |
| Emergency Override Protocol | instantiated | operators can force early restore or, in emergency, force earlier purge with a logged reason |

Set B: 9 instantiated, 1 homolog (Coordination Interface), 0 declined, 0 missing.

Note: the design itself declines (correctly) the full power-distribution doctrine
(escalation hierarchy / multi-actor government / adversarial-gaming controls) as over-lift
for a single-agent automation case. The 11 transferable C&B components above are all
nonetheless discharged; the declined items in the design's own working are sub-doctrine
extras, not catalog components, so they do not create gaps.

---

## Special-attention checks (per instructions)

- **Independent confirmation at the moment of an irreversible action** — PRESENT. An
  independently-reasoning checker must concur before any item crosses the purge window, and
  no single line of reasoning can carry a destructive action to permanence alone. This is the
  load-bearing guarantee against success-criterion #1.
- **Durable record of why** — PRESENT. A record is written before each final-track action
  capturing target, rationale, probe findings, checker verdict, classification, and purge
  time — directly answering the "no durable account" gap.
- **Authority/scrutiny scaled to consequence** — PRESENT. Routine reversible work runs
  untouched at full speed (protects criterion #2); only the rare final track engages probe +
  checker + record + window, with window length scaling to severity/recovery-doubt.

## Anti-signature spot-check (this scenario)

- irreversible_commitment_management "ordinary_reversible_change" / "failure_response_after_event" — NOT tripped; heavy path engages only for the irreversible subset and gates BEFORE the threshold.
- checks_and_balances "low-stakes single-owner reversible work" — NOT tripped for destructive class; correctly the reason routine bypasses the check.
- No surviving anti-signature disqualifies the design.

---

## Totals (both operative sets, 24 components)

- instantiated: 20
- homolog: 3 (Compensation Rule, Independent Review Panel, Coordination Interface)
- correctly_declined: 0 (catalog components); design declines only sub-doctrine extras outside the component lists
- missing: 0

## VERDICT: PASS

All 24 components of both operative archetypes are instantiated or discharged by a named
homolog. The three pillars the stakes demand — independent confirmation at the irreversible
moment, a durable record of why, and scrutiny scaled to consequence — are each present and
load-bearing. No missing components.
