PARK the ordinal-fidelity ladder — consumer removed (D-2026-06-20)

[hyperpolymath]

What & why

Owner decision (D-2026-06-20): PARK the transfinite ordinal-fidelity ladder. This is a park — not a kill, not a retraction. Order-type fidelity was always flagged OPEN; D-2026-06-14 stands; no postulate is closed.

Reason — the consumer was removed. The only consumer of ψ₀(Ω_ω) order-type fidelity was the Groove cleave. Groove RC-11 forbids ε₀+ in cleave ranks (the ladder is already past ε₀ at rung 2), and the cleave has resolved to a finite exact-round-trip zipper needing well-foundedness only. The fidelity result is therefore consumer-less. The ladder is correct, well-built, --safe --without-K, zero-postulate — and now unconsumed; the clean ending is to freeze it.

Changes (docs only — no .agda touched)

• New decision record docs/echo-types/decisions/ordinal-fidelity-ladder-parked.adoc (sibling to D-2026-06-14, same idiom), recording: status (parked, resumable); reason; the frozen artifact inventory (Veblen rungs 1–6); the frontier captured for cold resumption (Γ₀-least open → reverse φ_Γ₀(0) ≤′ Γ₀ → general first-arg monotonicity → gated on the Veblen mutual fixed-point descent; downstream the ψ collapsing function, then the two Fidelity.agda postulates); and the disposition (extraction to its own ordinal-notation repo, cut FLAGGED and left to the owner — firewall {OmegaMarkers, Buchholz.Syntax, EchoOrdinal} verified clean and stays; everything else under Ordinal/ moves).
• Pointers so a cold-resume session finds the park: docs/proof-debt.md (Fidelity debt entry), roadmap.adoc §Lane 3 banner, CLAUDE.md (new 2026-06-20 arc covering variance Resolve the monad/comonad/adjunction variance of loss in --safe Agda #243 + Veblen rungs φ₁ is a normal function; next-ε β is the LEAST ε-number above β (BH climb rung 3, slice 3) #244–First-argument monotonicity; Γ₀ ≤′ φ_Γ₀(0) (BH climb rung 6) #247 + the park).

The Veblen layer stays frozen exactly as landed; the mutual-descent rung is deliberately not opened.

Verification

• Docs only; no .agda changes → Agda invariants untouched (--safe --without-K, zero postulates, no TERMINATING).
• scripts/kernel-guard.sh → PASS.

🤖 Generated with Claude Code

https://claude.ai/code/session_01Rw1RpYXU5Q7rzy2bVofVeB

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Generated by Claude Code

[github-actions]

🔍 Hypatia Security Scan

Findings: 6 issues detected

Severity	Count
🔴 Critical	0
🟠 High	3
🟡 Medium	3

View findings

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    "reason": "Nominal-only SAST in echo-types: codeql.yml language matrix contains no language present in the repo and lacks `actions`, so CodeQL records zero results on every commit. Remediation: set the CodeQL matrix to `language: actions`.",
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    "remediation": "Add CodeQL or equivalent SAST workflow.",
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    "severity": "medium"
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    "reason": "Code scanning (Scorecard): TokenPermissionsID -- Token-Permissions -- 17 day(s) old [STALE]",
    "type": "CSA001",
    "file": ".github/workflows/scorecard.yml",
    "action": "escalate",
    "rule_module": "code_scanning_alerts",
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    "reason": "Code-scanning alert TokenPermissionsID (high) at .github/workflows/scorecard.yml is 17 days old (threshold: 7 days) -- overdue for remediation",
    "type": "CSA003",
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    "action": "escalate",
    "rule_module": "code_scanning_alerts",
    "severity": "high"
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  {
    "reason": "Code-scanning alert hypatia/code_safety/agda_postulate dismissed as 'false positive' -- ensure dismissal is documented and justified",
    "type": "CSA004",
    "file": "proofs/agda/EchoImageFactorizationPropPostulated.agda",
    "action": "review",
    "rule_module": "code_scanning_alerts",
    "severity": "medium"
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