settled-reach/docs/workshops/body-map-viewer/round-2-notes.md

---
title: "Round 2 Notes — Body Map Viewer Workshop"
description: "Compiled record of Round 2 synthesis positions: convergences, verified-absent tensions, and the exact interview-2 decision list against lead-interview-1's rulings."
type: workshop
status: active
workshop: body-map-viewer
agent: qatux
round: 2
created: 2026-07-25
---

# Body Map Viewer — Round 2 Notes

**Compiled by:** Qatux
**Round:** 2 — Synthesis (envelope mechanics, seed-chaining, step-ladder tables,
final cache spec, TTL-split payload, adversarial pass)
**Participants:** Dudley, Araminta, Stig, Tyre, Troblum (adversarial)
**Sources:** [dudley-round2.md](dudley-round2.md), [araminta-round2.md](araminta-round2.md),
[stig-round2.md](stig-round2.md), [tyre-round2.md](tyre-round2.md),
[troblum-round2.md](troblum-round2.md) (920 lines, incl. ADDENDUM + FINAL UPDATE
scorecard), [lead-interview-1.md](lead-interview-1.md),
[measurements/t-setpixel-c1.md](measurements/t-setpixel-c1.md) (⑥),
[measurements/t1177-hydrology.md](measurements/t1177-hydrology.md) (POPULATION
SURVEY addendum, 2026-07-23)

This round produced a filing-ready package: **1 new D-record + 11 amendment
texts + 8 ticket dispositions** (Tyre §a/§d), all four round-1 open items closed
(envelope mechanics, seed-chaining, step-ladder tables, cache tiers), a
population-scale re-verification of the cliff rarity claim, and a full
adversarial pass that resolved 5 of 7 original findings in-round. Troblum's own
FINAL UPDATE scorecard is the authoritative statement of what remains open —
this document verifies it against the four synthesis documents rather than
restating it blind.

---

## 1. Per-agent positions, round 2

### Dudley — envelope wire/serving design, seed-chaining ruling, step-ladder cost fills, final cache spec

- **(a) Envelope mechanics:** read `server/src/bridge/mod.rs` directly and found
  the "tagged marker" pattern D-225 asked for **already implemented five times**
  (`star_map`/`city_names`/`browse` each carry a mandatory boolean discriminator,
  `ShapeProbe` enforces mutual exclusivity). Recommends extending the exact
  pattern: `StepCanvasRequest { step_canvas: bool, body_id, step_index, center,
  extent, min_wl_m }` as a sixth `Inbound` variant; response is a **dedicated**
  `StepCanvasResponse` message (not a field on `AtlasLayerResponse` — D-226
  T-1124 §2's own rule names this exact case). Legacy `district_window` survives
  byte-unchanged with no coexistence engineering — it just goes cold once its
  only client (the retiring `AtlasWindowViewer`) is deleted. Step-0/Region rides
  the *new* envelope, not the legacy whole-body family. Answers Araminta's
  relayed dense/sparse framing question: **one flat tagged message** (her
  default shape), not a split — no server-side compute is saved by splitting,
  and the progressive-paint UX case is cheaper to solve client-side.
- **Cliff wire-shape self-correction:** explicitly adopts Araminta's sparse
  `Vec<CliffSegment>` shape over his own round-1 implicit dense-array framing,
  stating plainly he was "underspecified, not actually disagreeing" — resolves
  round-1 conflict #1.
- **(b) Seed-chaining ruling:** **independent re-derivation** — each step calls
  `derive_at_metres(seed, position, ...)` fresh; a finer step may call a coarser
  rung's derivation *function* internally (the existing region-baseline-feeds-
  district precedent) but never reads a coarser step's cached *response* as
  literal input. Argued from D-227 purity (cache-dependency chains and
  determinism-ordering hazards are exactly what independent re-derivation
  avoids) and states this validates his own round-1 cost numbers as the correct
  model.
- **(c) Step-ladder tables:** live-coordinated with Tyre mid-draft; corrected his
  own first-pass error (an invented, non-D-243 "4 m Tile-adjacent" spacing).
  Cost-filled three D-243-disciplined skeletons (Options A/B/C). **Recommends
  Option B** (skip-chunk, 5 steps) as the only skeleton where every row is
  directly measured or same-band-confirmed — chunk (64 m) was never benched, and
  B is the one option that doesn't need it. States plainly that cost does not
  distinguish B from C (identical per-row costs); the choice is pure UX pacing,
  which he explicitly hands to Jeroen.
- **(d) Final cache spec:** Jeroen's storage-eviction amendment **simplifies**
  his round-1 three-term TTL formula, not complicates it — drops
  `distance_decay` entirely once staleness and storage-thrift stop being
  conflated, landing on one axis: `evict_if: time_since_last_visit(entry) >
  STORAGE_TTL[rung]`. Global tier (~174 MB PNG-encoded, D-203-shaped resource,
  keep-always) unchanged from round 1. Notes his own design and Stig's
  independently-designed client tier converged on the identical two-axis shape.

### Araminta — final payload schema (TTL-split), region-as-step-0, label de-dup, final wire schema

- **(a) TTL-split payload:** the field *set* doesn't change (ratified by
  lead-interview-1); this section assigns each field to a **static-geometry
  plane** (cached indefinitely-fresh) or a **sim-state plane** (short-TTL,
  re-requested on clock-bucket rollover) as a **physical field separation**, not
  a policy layered on afterward. States the reasoning per field, not inferred
  from name: `glaciation`/new `flooded` → sim-state (their *live* value is the
  map-relevant fact); `temp_dc` → static (the map consumes it as a
  climate-baseline classification, not a live weather reading — same D-226
  clock mechanism, different consumer question). Rules against bit-packing the
  two sim-state fields, citing T-1179's own finding that packing hurts DEFLATE
  on low-entropy fields — separate L8 planes win on both compression and
  independent-re-fetchability grounds.
- **(b) Region-as-step-0: CLOSED three-way** (Araminta + Tyre + Jeroen's
  ruling) — states two clauses together per Tyre's wording nuance: Region = step
  0, **and** step 0 is the sole canonical/always-keep tier; nothing coarser than
  Region is a rung (the planetary seam is elastic, not steppable). Three
  independent arguments given (Tyre's snap ruling forces it structurally;
  continuity with the existing orbital mosaic; elimination — no coarser D-243
  rung exists).
- **(c) Label de-dup:** a deterministic, identity-keyed anchor rule — mean-cell
  position (point features) or cropped arc-length midpoint (line features),
  computed independently per canvas/tile, explicitly **not** a cross-tile
  coordination protocol. Adds a corollary no round-1 document stated explicitly:
  during hold-fetch-swap, only the currently-authoritative canvas's annotation
  layer draws — the held/stale canvas's terrain texture shows (magnified) but
  its labels do not.
- **(d) Final wire schema: CLOSED**, envelope framing confirmed by Dudley's
  design. Flags one sequencing note (not a disagreement): Dudley's struct as
  literally drafted predates her `flooded` field and needs it added as a ninth
  field — doesn't reopen the flat-envelope ruling.

### Stig — measurement ⑥, final c1 call, cache-store spec, px-per-gridunit band

- **(a) Measurement ⑥ headline:** `Image.set_pixel` flat ~78 ns/cell across
  330K–8.3M cells (25.7 ms / 165.2 ms / 643.5 ms); a hand-rolled
  `PackedByteArray` direct write is **~2× slower**, counter to his own
  going-in assumption — explicitly flags this as a "don't hand-roll the buffer
  write" finding for implementers.
- **(b) C1 final call: CONFIRMED CPU-first**, not a flip to shaders. States the
  number "changes how I'd frame the recommendation" — colorize is trivial at
  the realistic 330K per-step size (25.7 ms) but meaningful at the 8.3M
  stress-ceiling size (~1/3 of server derive time there) — reads this as a
  second, independent validation of Dudley's viewport-sizing policy rather than
  a new risk, since the policy structurally avoids ever requesting an 8.3M-cell
  canvas as a real payload. Names the shader path's trigger condition precisely
  (T-1175's tapering work landing, or a future step-count decision pushing the
  realistic per-step size meaningfully above ~2M cells) rather than leaving it
  a vague someday.
- **(c) Cache-store spec, final:** extends round 1's two-mechanism design
  (retention-floor+LRU for geometry, TTL for sim-state) to **three independent
  sweep mechanisms** kept structurally separate: Tier 1 (global/step-0) —
  retention floor only, no sweep ever; Tier 2 (sub-global geometry) — two
  independent triggers, (2a) time-since-last-visit and (2b) LRU-capacity
  budget; Tier 3 (sim-state planes) — explicit staleness TTL. Gives a concrete
  `IndexEntry` schema. Explicitly defers `STORAGE_TTL`/budget constants as "a
  tuning pass once real play-pattern data exists," not an architecture call.
- **(d) Px-per-gridunit band:** step-dependent, not flat — 1×1 at the deep/
  ground steps (full fidelity where the player is nearest visible detail),
  1×1 preferred at mid steps while realistic canvas count stays under ~2M
  cells, ~5×5 reserved for the shallow/orbital step only. Grounded in ⑤+⑥
  together: upload cost is flat regardless of display density, and colorize
  cost is cell-count-bound, not density-bound — so there's no cost reason to
  sacrifice fidelity at the deep end.

### Tyre — final amendment texts, envelope governance disposition, step-ladder tables, deprecation sweep

- **(a) One new D-record + 11 amendment texts**, each stated as record-ready
  ("paste directly into the named record"): the new render-architecture record
  (a.0); D-166 corollary repoint (a.1); T-1143 ruling 3 supersession (a.2);
  `select_rung` replacement (a.3); D-243 gridunit vocabulary entry, including
  Stig's ⑥-derived step-dependent display-ratio band (a.4); D-226 ceiling
  **re-scope**, not retirement (a.5); the map-time TTL-split + staleness/storage
  axis distinction, verbatim-grounded in Jeroen's amendment (a.6); the cliff
  sparse-list terminology repoint, now **survey-confirmed** by the population
  addendum (a.7); the D-226(d) per-request/per-derivation framing + client-cache
  accumulation cap, closing Troblum's S3 (a.8); the persistent-cache
  schema/version tag, closing Troblum's S5 (a.9).
- **(b) Envelope governance disposition:** the windowed-family ceiling's
  **purpose survives untouched**; its **mechanism is re-scoped to the legacy
  `district_window` carrier only** — the tagged envelope is a new carrier the
  old rule does not apply to by construction. States explicitly: **"the ceiling
  rule is RE-SCOPED, not retired"** and that the deprecation table's
  conditional SUPERSEDE branch "does NOT fire." Folds in Dudley's three wire
  rulings verbatim as confirmation his own drafted text required no changes.
- **(c) Step-ladder tables:** supplies the D-243-disciplined skeleton
  constraints (six rungs only, step 0 = Region, deepest = voxel, display ratio
  decoupled from spacing); Dudley fills costs. **Joint recommendation: Option
  B** — states this is "an evidence argument, not a taste one... Dudley and I
  both land here independently." Names the one real seam explicitly: the
  Region→District ÷100 jump lines up with the global/sub-global cache-tier
  boundary; every factor below it is pure UX pacing with no serving-side
  consequence, which he states can be decided "on feel alone."
- **(d) Deprecation sweep:** 11 DQR dispositions (including two added directly
  from Troblum's findings: D-226(d) AMEND for the accumulation cap, and a D-192
  cross-reference note) + 8 ticket dispositions (T-1176 close-as-delivered,
  T-1158 cancel, T-1175 re-scope-and-unblock, T-1157 re-scope, T-1174 keep
  unchanged, T-1153/T-1152 stay `done` with code-retirement flagged, their test
  suites retired with their code) + an explicit `_canvas.scale` retirement path
  for the implementation ticket.
- **Names the exact interview-2 items himself, at the end of his document** (see
  §3 below — verified against this).

### Troblum — adversarial pass (BLOCKING/SERIOUS/NOTE, then ADDENDUM, then FINAL UPDATE)

Three-part document, read in full. Initial pass (before any round-2 files
existed) found 2 BLOCKING (B1: the "273 bodies" hydrology bench is one body
solved 273 times, not a population survey; B2: the seed-chaining fork was
unresolved and every cost number implicitly assumed one answer to it), 5
SERIOUS (S1 eviction-interaction costing; S2 courses-density coverage gap; S3
D-226(d) letter-vs-purpose on client-cache accumulation; S4 sim-state phase
cadence; S5 disk-cache schema/version tag), and 3 NOTE items (N1 units
convention; N2 Region-as-step-0 unconfirmed at time of writing; N3 clean bill
on the courses cost bound itself).

**ADDENDUM** (after reading all four round-2 files): re-verified every finding
against source code, not agent prose. B2 **RESOLVED** — checked
`district_profile.rs:1705-1732` directly and confirmed the nested-function-call
pattern Dudley's ruling describes is *already what every measured ns/cell
number exercises*, not merely argued to be consistent with it. Attacked the
envelope design directly with three angles: a discriminator-collision attack
that **did not pan out** (cleared on inspection of `bridge/mod.rs:96-152`), the
version-skew angle that found Tyre's §(a.9) had **already closed** the gap
before Troblum could report it as new, and a genuinely new cache-format
cutover angle that traced to a **clean bill** (the legacy viewer never had a
disk cache to begin with, so there's no stale-key orphaning risk). Checked
Option B's "zero asterisks" claim row-by-row and found one precision note (the
Quarter row is same-band-inferred, not this-session-remeasured at 8.3M) —
explicitly states this doesn't change the recommendation. S1 downgraded to
NOTE (mechanism fully resolved by both Dudley's and Stig's independently
converging designs; only a tuning-pass number remains, correctly deferred).
S3 and S5 confirmed RESOLVED against Tyre's exact amendment texts.

**FINAL UPDATE** (after independently verifying the new population-survey
bench against source): confirmed the new bench (`bench_population_survey_all_
committed_bodies`) is genuinely distinct from the original defective bench —
loads each of 267 real heightmap PNGs independently inside the `par_iter`
closure, distinct `body_id`/`sea_level` per iteration, carries its own
determinism spot-check and a discovery-count guard. **B1 → RESOLVED.** States
the final scorecard explicitly: of seven original findings, five are resolved
(B1, B2, S3, S5, and S1's mechanism half — with S1's cost-number half correctly
deferred as tuning), and **exactly two remain open for interview 2**: S2
(courses-inclusive derive cost has zero measured coverage at the deep-step ×
high-river-density combination) and the S4 residual (sim-state TTL
phase-cadence is still an unnamed numeric variable, though the field-assignment
half Araminta resolved is fully closed).

---

## 2. Convergences (many this round — verified against the source documents, not merely asserted)

- **Flat envelope, one message, not a dense/sparse split.** Araminta's round-1
  default assumption; Dudley independently designs and confirms it in his own
  `StepCanvasResponse` struct with an explicit cost argument (no server compute
  saved by splitting, since every field comes off the same row-chunked pass);
  Tyre folds Dudley's ruling into the governance text verbatim. Three-way
  agreement, not two citing one.
- **D-226 §2 ceiling re-scope, not retirement — both seats that address it say
  re-scope.** Tyre's governance framing ("its purpose survives... its mechanism
  is re-scoped to the legacy carrier only") and Dudley's serving-level design
  (legacy `district_window` "survives unchanged," the envelope "carries only
  NEW step-canvas traffic") independently land on the identical disposition.
  Tyre states explicitly in his own document that his §(d) deprecation table's
  conditional SUPERSEDE branch "does NOT fire" — re-scope is final, not a live
  option still being weighed.
- **Option B (skip-chunk, 5-step ladder) — joint, independently-reached
  recommendation.** Tyre states this plainly: "Dudley and I both land here
  independently... an evidence argument, not a taste one." The shared reasoning
  (chunk/64m was never benched; B is the only skeleton with zero unmeasured
  rungs) appears in both documents in the same form, cost-argued rather than
  preference-argued.
- **Two-axis cache eviction (staleness vs. storage-budget) reached
  independently twice.** Dudley's server-side spec (§(d), the collapsed
  one-term `time_since_last_visit > STORAGE_TTL[rung]` formula, replacing his
  own round-1 three-term formula) and Stig's client-side spec (§(c), Tier 2's
  two independent sweep triggers with no distance term at all) were designed
  separately and converged on the same shape. Troblum's ADDENDUM explicitly
  names this convergence as evidence the simplification is correct, "not just
  convenient."
- **Step-dependent px-per-gridunit ratio, not a flat display ratio.** Stig
  proposes it (§(d), grounded in ⑤+⑥ together); Tyre files it directly into
  the D-243 gridunit amendment text (§(a.4)) attributed to Stig's measurement
  ⑥, and Dudley's ladder-table narrative independently confirms the same
  policy from a *different* cost driver (server-side colorize is cell-count-
  bound, not density-bound — so relaxing to 5×5 wouldn't even help at the
  steps where it doesn't need to). Dudley states this as "two independently
  measured cost models agreeing on a policy neither one was designed to argue
  for" — worth flagging as convergence, not restating as one position echoing
  another.
- **Cliff wire shape: sparse `Vec<CliffSegment>`, resolved unanimously.**
  Dudley explicitly retracts his own round-1 implicit dense-array framing in
  favor of Araminta's sparse-list shape; Tyre's filed amendment text adopts the
  same shape and states his own round-1 "new arrays" language was about
  rejecting bit-stealing, not endorsing dense arrays — the round-1 tension
  (round-1-notes.md §3) is fully closed, three ways, with each agent's own
  document stating why they landed where they did rather than silently
  adopting a consensus.
- **SQLite rejected in every shape, independently, by both cache-tier owners.**
  Restated and reconfirmed in round 2 (Dudley's D-203-shaped resource for the
  server global tier; Stig's plain `FileAccess` dir for the client) — not a new
  convergence this round but confirmed unchanged from the lead-interview-1
  ratification-by-silence.

---

## 3. Tensions — verified against the documents: NONE survive into interview 2

The coordinator's belief that no tensions remain was checked directly, not
assumed. Two items that were live tensions or open questions at the close of
round 1 are confirmed closed by round 2, each with an explicit closing
statement in the record (not merely implied by silence):

- **Round-1 conflict #1 (Dudley vs. Araminta, dense-vs-sparse cliff wire
  shape):** closed. Dudley's round-2 document states outright: "Reading her
  argument again against my own hydrology numbers, she's right and I was
  underspecified, not actually disagreeing." Tyre's filed text adopts the same
  shape and states his own prior "new arrays" phrasing was about the bit-
  stealing question, not a competing dense-array position. Three-way
  resolution with each party's reasoning on record — no residual disagreement
  found.
- **Round-1 conflict #2 (Tyre ruling Phase-4-not-Phase-5 for cliffs without an
  independent Araminta confirmation):** closed by the population-survey
  addendum plus Araminta's own round-2 document, which adopts the ratified
  Phase-4 sparse-list shape without objection and builds her final TTL-split
  schema directly on it (`cliffs` listed in her static-geometry plane table
  with no caveat). Lead-interview-1 ruling 3 already resolved this
  ("aligns the rarity finding, Araminta's encoding logic, and Tyre's scope
  ruling") before round 2 began; round 2's population survey (Troblum's B1,
  now RESOLVED) strengthens rather than reopens it.

**What is NOT a tension, despite surface appearance, and should not be treated
as one at interview 2:** Troblum's two remaining open items (S2, S4-residual)
are **not disagreements between agents** — no participant contests them, no
two documents give conflicting answers, and Troblum's own FINAL UPDATE frames
both as measurement/tuning gaps rather than architectural disputes. These
belong in the decision list below as **[decide]** items (does the gap get
closed before filing or deferred), not as **tensions** to relitigate. The
coordinator's framing (list them as decisions, not conflicts) matches what the
documents actually show.

**One asymmetry worth naming, not a tension:** Stig's round-2 §(d) phrases the
step-dependent display-ratio policy from the deep end ("1×1 at the deep/ground
steps... relaxing toward 5×5 only at the shallower steps"), while Dudley's
narrative phrases the same policy from the cost-driver end ("1×1 wherever the
resulting cell count is affordable... reserving the coarser ratio only for the
one place canvas extent is the pressure"). These are the same policy stated
in two directions, not two different policies — Tyre's filed amendment text
(§(a.4)) reconciles both into one canonical statement. Flagging only so this
isn't mistaken for a wording drift at interview 2.

---

## 4. EXACT interview-2 decision list

Cross-checked against Tyre's own explicit "For interview 2, the calls left for
Jeroen" list (`tyre-round2.md`, final section) and Troblum's FINAL UPDATE
scorecard (`troblum-round2.md`). **The coordinator's proposed list is correct
as stated, with one addition Tyre's own document makes explicit that should be
folded in rather than treated as separate — see item 3's note below.**

1. **[ratify] Step ladder: Option B vs. Option C.** Pure pacing choice — every
   costed row is byte-identical between the two skeletons (Tyre: "it costs
   identically to B row-for-row... District's absence is not a cost saving,
   it's purely a pacing choice"). B is the joint recommendation (5 steps,
   gradual ÷100-then-÷4-then-÷4-then-÷128 descent); C is 4 steps with a single
   blunt ÷400 top jump. Option A (6 steps, including the unmeasured chunk rung)
   is ranked last by both agents and is not presented as a live choice for
   Jeroen — it is named only to show why it was excluded.

2. **[ratify] D-226 §2 ceiling disposition: re-scope vs. retire.** Both seats
   that address this — Tyre's governance framing and Dudley's serving-level
   design — say **re-scope** (the rule keeps governing the legacy
   `district_window` carrier verbatim; the tagged envelope is a new carrier
   outside its scope, not an exemption from it). This is presented as a
   one-line ratification, not a live fork — Tyre states his own deprecation
   table's conditional retire-branch "does NOT fire."

3. **[ratify] Seed-chaining = function-composition, confirmed as Jeroen's
   outline intent.** Dudley's round-2 ruling (independent re-derivation; a
   finer step may call a coarser rung's derivation *function*, never read a
   coarser step's cached *response*) is **source-verified** by Troblum's
   ADDENDUM — not merely argued, but checked directly against
   `district_profile.rs:1705-1732` and confirmed to be the exact pattern
   every measured cost number in the appendix already exercises. What
   remains for interview 2 is narrower than "does the ruling hold" (it
   does, on the code) — it is **authorial confirmation**: does "this at the
   same time serves as seed information for the deeper cascade" in Jeroen's
   original outline mean this function-composition reading, or did he intend
   literal consumption of a coarser step's already-computed response bytes?
   Troblum frames this precisely as a one-line confirmation item, "very
   likely to confirm cleanly," not a re-open — but notes if Jeroen meant the
   second reading, Dudley's cost model needs a re-bench before the ladder
   table is authoritative. **This is exactly the coordinator's item 3, stated
   with the precision both Tyre and Troblum give it — no correction needed.**

4. **[decide] Troblum's two residuals — close before filing, or defer.**
   Confirmed as the only two items remaining open on Troblum's own final
   scorecard (of seven original findings, five are resolved; these two are
   not):
   - **S2 — deep-step × high-river-density courses bench.** The one
     courses-inclusive-at-real-density number in the whole appendix (T-1178
     Cross-check 1, 195.0 ns/cell, 18 courses, District spacing, one body) has
     zero coverage at the deepest step (Block/Tile spacing, where the deep-step
     83K-cell bench is courses-EMPTY by construction) crossed with high river
     density (a BraidedDelta/MeanderReach-class body, not yet sampled).
     Troblum's own framing: "not blocking... but it is the one combination in
     the whole measured appendix with literally zero data point." His ask is
     explicit: "run one more bench... before or shortly after filing; not a
     blocker for filing itself" — meaning the decision Jeroen faces is
     **run-now vs. defer-to-a-named-follow-up**, not whether the finding is
     valid.
   - **S4 residual — sim-state TTL phase-cadence.** Araminta's round-2 work
     fully resolved *which* fields are sim-state and *why* (per-field
     reasoning, not name-inference); what remains is a **numeric** gap — D-228's
     "computed once per phase" water-height/glaciation model never states how
     long a phase lasts, so the sim-state plane's TTL has no number to size it
     by. Troblum's framing: fold into the same tuning-pass deferral Stig/Dudley
     already used for their own unresolved constants (acceptable), **or** if
     Jeroen wants a concrete number before filing, that's a named Dudley/
     Araminta follow-up question at interview 2. Same shape as S2: a
     run-now-vs-defer choice, not a contested finding.

**Nothing else requires a Jeroen ruling at interview 2.** Every other item any
agent flagged as open at the close of round 1 (envelope mechanics, cliff wire
shape + Phase-4 scope, region-as-step-0, label de-dup, the c1 shader-vs-CPU
call, TTL-split field assignment) is closed in round 2 with an explicit
closing statement traceable to a specific document and section, verified
above.

---

## Summary for the lead interview

Round 2 delivered a complete, cross-verified filing package — not a set of
independent positions still needing reconciliation. Every one of round 1's
open items closed, most of them multiple ways (region-as-step-0 three-way;
cliff wire shape three-way with each party's reasoning stated; the envelope
ceiling disposition two ways with an explicit "does not fire" statement on
the untaken branch). Five distinct convergences were independently reached by
different agents from different starting arguments — worth Jeroen hearing as
confidence signal, not restated agreement. Troblum's adversarial pass is the
strongest evidence the package is filing-ready: of seven original findings
(two BLOCKING), five are now fully resolved and **verified against primary
source**, not merely re-asserted by the agent being checked — including a
brand-new, population-scale (267/267 real bodies) re-run of the cliff-rarity
claim that came back stronger than the original one-body finding. Exactly
four items need Jeroen's voice at interview 2: two ratifications on facts
already agreed (step count B-vs-C is pure pacing; the ceiling re-scope is
unanimous), one authorial-intent confirmation that the code already supports
(seed-chaining), and two narrow run-now-vs-defer calls on measurement/tuning
gaps that nobody disputes are real but that nobody has treated as
architecture-blocking either.