ultraplan: mass recon + phased plan + systemet->system-et rename assessment

[arena-ai-coding-agent]

Summary

Mass recon of ecosystem topology as seen from affinescript, plus ultraplan (do-nothing per request) and explicit rename assessment for systemet -> system-et.

Recon

• Chain: systemet (theory L0-L4 Equality Theory, totality cut) → anytype (kernel, pluggable Grade.Algebra semiring) → affinescript (product profile affine+cost, premier PL work, Stage E) → *script faces (rattlescript, jaffascript, cafescripto, lucidscript, pseudoscript, planned properscript/realscript)
• Faces are shims, no compiler, pin affinescript as submodule, single .affine extension + pragma, same-cube invariant (currently 2 cubes Face transformers disagree on trailing-statement lowering — greet compiles to 2 wasm classes #601)
• Satellites: INT-01..04/07/08/09/11 closed, WASI preview1+adapter --command default INT-03 S6c: flip default wasm target preview1 → component + native-preview2 cleanup #486, typed-wasm L7+L10+L13 enforced L1-L6/L14-L16 need new carrier multi-producer ABI
• Estate: ~300 repos via reposystem, control plane standards/megasweep

Mathematical foundations = world-changing bet

• L1 totality cut: normalize+compare, type-level total by construction, no coercion machinery inside equality (anti-System-Fc, avoids coherence cliff that killed v0.1)
• L2 pluggable grades: same kernel many disciplines (affine, privacy budget, security lattice, cost, latency×billing), categorical LCCC/SMCC/graded comonad D_π/Freyd/presheaf
• If holds: dial-a-discipline kernel, N faces cost one proof

Rename assessment

• Without sweep: 8/10 damage — mass broken links, confused AI agents (0-AI-MANIFEST.deed), failing CI, hyphen invalid in Cargo/opam, 100-200 files across estate
• With sweep: 3/10 — 1-2 week churn, GitHub redirect saves URLs not strings
• Recommendation Option A: KEEP repo name systemet, display as system-et / System ET everywhere, topics both, alias in deed, zero damage +2 discoverability. Norwegian pun 'systemet = the system' valuable.
• Option B full rename only after Phases 1-5 green with reposystem scenario + rg sweep

Ultraplan Phases (doc only, no execution)

0. Recon (this PR)
1. Math hardening: L1/L2 formalization, L3/L4 open problems
2. Anytype kernel: instances, branching join, L0 lowering, ABI in-process
3. AffineScript soundness Stage D→E: Polonius production 0 divergences, effect handlers CPS/loud-fail, typed-wasm widening, same-cube fix Face transformers disagree on trailing-statement lowering — greet compiles to 2 wasm classes #601, WASI preview2 native
4. Faces sealing: Face Contract accepted, js_face split (JaffaScript plain JS, ProperScript TS), RealScript, ActionScript preset
5. Ecosystem & distribution: releases + JSR/npm, satellites published, dogfood
6. Rename if still wanted (optional)

Files

• docs/ULTRAPLAN.adoc (full, authoritative)
• docs/decisions/0027-systemet-rename-to-system-et.adoc (ADR)
• .machine_readable/descriptiles/ULTRAPLAN.deed (machine companion)
• docs/reports/ULTRAPLAN-EXEC-SUMMARY-2026-09-25.adoc (exec summary)
• docs/NAVIGATION.adoc cross-link

Compliance

• No code changes, no renames, no moves per request — docs only
• SPDX headers present
• Branch arena/01a0d873-affinescript

Closes: N/A (plan only)

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