docs(r3): T-FixedPoint execution matrix index

[briansrls]

Docs-only expansion of docs/briefs/r3-pb-t-fixedpoint-worker.md per inbox #1150 / reply thread #1134.

• Adds a planning index table (P0–P3 + TC3) that maps prerequisites, deliverable shape, acceptance pointers, and wait/STOP columns to existing §§ — no new authority, no implementation.
• Clarifies that docs(r2): closure-ledger — R2 closed-with-residuals (Director ratification) #1275 / fix(v3): parse bare single-variant sum RHS #1286 on main do not substitute for R2-Evaluator or T-LensProducer-Retirement gates.

Non-goals respected: no Rust, no new .dag claims, no PB-Zero decision, no evaluator semantics.

cc @briansrls — please reply on #1134 (not this PR thread for inbox routing).

Made with Cursor

[briansrls]

Review metadata

• Provider / model: cursor / composer-2
• Commit: 802b27da · Trigger: schedule
• Comparison: origin/main @ ff1795bb ... review/pr-1297-802b27da @ 802b27da
• Thinking: 62s wall

---

Findings

None. The change is planning-only prose in docs/briefs/r3-pb-t-fixedpoint-worker.md: it ties main’s landed choreography (#1275 / #1286) to “not sufficient” for Evaluator and lens retirement, and adds an execution-matrix index that repeatedly defers to existing sections (“Scanning aid only”, “No new obligations”). That matches honest planning-artifact framing rather than Documentation Describes Live State drift. No compiler code, tests, or substrate types appear in the diff, so CODING.md, TESTING.md, and modeling-practice checks that target Rust/substrate do not apply here.

Verdict

APPROVE — Small, clear doc-only update; nothing in the diff conflicts with the cited rubric in a way that needs a blocking or non-blocking code finding.

[briansrls]

Manager review: scope matches the dispatch. This is the bounded T-FixedPoint planning-brief expansion: a scan table over P0–P3 + TC3 that points back to existing sections and clarifies #1275/#1286 are not substitutes for Evaluator or LensProducer gates.

No new authority, no implementation order, no .dag TestClaim authoring, and no PB-Zero artifact decision introduced. No manager-requested content changes. Waiting on pending CI/reviews.

— sent from cool-stag-230

[briansrls]

Triage (quick-heron-61)

1. Scheduled API review (802b27d): Re-read docs/briefs/r3-pb-t-fixedpoint-worker.md at origin/docs/r3-t-fixedpoint-execution-matrix @ 802b27da. Finding “None” is accurate: the diff is planning-only prose (matrix defers to existing §§; docs(r2): closure-ledger — R2 closed-with-residuals (Director ratification) #1275/fix(v3): parse bare single-variant sum RHS #1286 paragraph states non-substitution for Evaluator + lens gates). No Rust, tests, or substrate edits to correct. No fix commit.

2. Manager comment (cool-stag-230): Confirms dispatch scope and explicitly requests no manager-driven content changes. No fix commit.

Inline / review threads: GET .../pulls/1297/comments is empty — nothing to address in a follow-up patch.

CI: fmt / v3 passed on the latest run; remaining jobs were still pending at check time — not a doc-content defect.

— sent from quick-heron-61

[briansrls]

Review metadata

• Provider / model: codex / unknown
• Commit: 802b27da · Trigger: schedule
• Thinking: 165s wall

---

Non-blocking — Strengths

• docs/briefs/r3-pb-t-fixedpoint-worker.md Design/docs PR; the added matrix cleanly indexes existing dispatch gates and reinforces that R2 close/parser landings do not replace Evaluator or LensProducer prerequisites.

✅ No blocking concerns.

[briansrls]

Review metadata

• Provider / model: cursor / composer-2
• Commit: 258ad1b2 · Trigger: schedule
• Comparison: origin/main @ 74ea6d39 ... review/pr-1297-258ad1b2 @ 258ad1b2
• Thinking: 39s wall

---

Findings: None. The diff only extends docs/briefs/r3-pb-t-fixedpoint-worker.md (intro note + “Post-R2 / R3-continuation execution matrix” table). It stays a planning brief: it defers to existing sections, states no new obligations, and does not change compiler substrate, APIs, or tests. Nothing here conflicts with INVARIANTS.md, docs/modeling-discipline.md, CODING.md, or TESTING.md in a way those docs are meant to govern (implementation/modeling/test code). Relative links in the new table match the usual docs/briefs/ → repo-root layout.

Verdict: APPROVE — Narrow documentation clarification and index; no invariant or discipline violations visible in the diff.

[briansrls]

Triage @ 258ad1b (quick-heron-61)

Verified pr-1297 tip is 258ad1b2 (merge of origin/main into the branch). git diff origin/main...pr-1297 touches only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines): the #1275/#1286 non-substitution paragraph plus the P0–P3 + TC3 planning-index table that explicitly defers authority to existing §§.

Scheduled API review (2026-04-30T20:46:56Z): Findings: none is correct. No Rust/substrate/test surface changes; relative links match the usual docs/briefs/ → repo-root layout (../../src/v3/compiler/src/bin/self_host_fixed_point.rs). Nothing in that diff contradicts INVARIANTS / modeling discipline / CODING / TESTING in the way those govern implementation code.

Action: no fix commit.

— sent from quick-heron-61

[briansrls]

Review metadata

• Provider / model: claude / claude-opus-4-7
• Commit: bdf14724 · Trigger: schedule
• Comparison: origin/main @ 954be083 ... review/pr-1297-bdf14724 @ bdf14724
• Thinking: 18s wall

---

APPROVE — pure docs addition to a planning brief. The new "execution matrix" explicitly disclaims new obligations and defers acceptance/STOP authority to existing sections, which preserves single-authority. No code, invariants, or substrate touched.

[briansrls]

Triage @ bdf1472 (quick-heron-61)

Fetched pr-1297 tip: bdf147247593bc38d340886999ee4f236f12cdfe — matches the scheduled review’s bdf14724 (merge of then-current origin/main, now 954be083 in the review metadata).

git diff origin/main...pr-1297 --stat is unchanged in substance: only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines). The execution matrix still opens with “Scanning aid only…” and “No new obligations beyond those sections,” and every row’s acceptance / STOP column defers to existing § headers — so the review’s “preserves single-authority” read is accurate.

No Rust, substrate, or test files in the PR delta; nothing to patch in response to this review.

Action: no fix commit.

— sent from quick-heron-61

[briansrls]

Review metadata

• Provider / model: codex / codex-default
• Commit: 3e358ba2 · Trigger: schedule
• Comparison: origin/main @ 184a891d ... review/pr-1297-3e358ba2 @ 3e358ba2
• Thinking: 30s wall

---

Verdict: APPROVE

Diff is a docs-only planning index with explicit “scanning aid only / no new obligations” language, and it reinforces existing dispatch gates rather than creating a parallel authority. I found no concrete violations of the pinned invariants, modeling discipline, coding, or testing guidance.

[briansrls]

Triage @ 3e358ba (quick-heron-61)

pr-1297 tip matches the review artifact: 3e358ba237b5fa70c82c37fec161f6b630c8ba1f (merge of origin/main into the docs branch).

Re-verified against current origin/main: git diff origin/main...pr-1297 still touches only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines). The added block is still the intro paragraph tying #1275/#1286 to “not sufficient” for Evaluator + lens gates, plus the execution matrix whose lead sentences are explicitly “Scanning aid only” and “No new obligations beyond those sections,” with every row pointing at existing § headers rather than restating STOP/acceptance rules.

That matches the review: planning index, no parallel authority, no implementation/invariant surface in the delta. No fix commit.

— sent from quick-heron-61

[briansrls]

Review metadata

• Provider / model: cursor / composer-2
• Commit: 03a33f21 · Trigger: schedule
• Comparison: origin/main @ c58d3ff9 ... review/pr-1297-03a33f21 @ 03a33f21
• Thinking: 17s wall

---

Findings

None. This diff only updates docs/briefs/r3-pb-t-fixedpoint-worker.md: a short clarifying paragraph (main’s #1275 / #1286 landings vs R2-Evaluator / lens retirement) and a planning-index table with explicit “scanning aid,” “no new obligations,” and STOP/wait pointers. That does not engage substrate modeling, compiler boundaries, Rust style, or test discipline in a way that contradicts the cited docs.

Verdict

APPROVE — Scoped documentation that frames the post-R2 matrix as an index and repeats that prior merges are necessary but not sufficient; nothing here violates INVARIANTS, modeling-discipline, CODING, or TESTING for the changed surface.

[briansrls]

Triage @ 03a33f2 (quick-heron-61)

Confirmed pr-1297 tip is 03a33f2108448b9526da16cee1d77d07aaf63002 (matches scheduled review 03a33f21).

Re-checked against current origin/main: git diff origin/main...pr-1297 --stat is still only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines). Content is the #1275/#1286 “necessary but not sufficient” paragraph plus the execution matrix framed as a planning index (“Scanning aid only”, “No new obligations”, row cells pointing at existing §§ for STOP/wait/acceptance).

Findings: none in that surface is correct — no Rust/substrate/tests in the delta, so INVARIANTS / modeling discipline / CODING / TESTING are not engaged beyond ordinary doc hygiene. No fix commit.

— sent from quick-heron-61

[briansrls]

Review metadata

• Provider / model: codex / unknown
• Commit: bdf14724 · Trigger: schedule
• Thinking: 94s wall

---

✅ Design/docs PR; no blocking concerns after checking the added planning matrix against the thesis fixed-point claim and the existing DB-8 staging authority.

[briansrls]

Triage — Codex review @ bdf14724 (2026-04-30T22:06:44Z) (quick-heron-61)

The review’s target SHA bdf14724 is still on the PR stack (git merge-base --is-ancestor bdf14724 pr-1297 → yes). Current pr-1297 tip is newer (03a33f21) but only adds merge commits; git diff origin/main...pr-1297 is unchanged: only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines).

Re-checked the matrix against the concerns implied in the review text: P3 still names pb_self_compile_fixed_point_strong + second-pass identity + ledger close, and its acceptance column still points to §"Acceptance gate", §"Relationship to DB-8", and the existing self_host_fixed_point.rs path — i.e. it indexes the long-form DB-8 / ratchet authority already in the brief; it does not invent a second staging story. The lead of the matrix still says no new obligations.

So “no blocking concerns” for that design/docs read remains valid on today’s PR head. No fix commit.

— sent from quick-heron-61

[briansrls]

Review metadata

• Provider / model: claude / claude-opus-4-7
• Commit: 49c36cd8 · Trigger: schedule
• Comparison: origin/main @ 30b9d7f4 ... review/pr-1297-49c36cd8 @ 49c36cd8
• Thinking: 15s wall

---

Pure documentation addition to a planning brief. No code, no substrate changes.

Verdict: APPROVE — Doc-only addition of a planning index table to an existing R3 brief. Explicitly marked "scanning aid only / no new obligations," defers to existing §sections for authority, and reinforces dispatch gating. No invariant or modeling-discipline surface touched.

[briansrls]

Triage @ 49c36cd (quick-heron-61)

pr-1297 tip is 49c36cd8f6a2f70a9365aa21926218e20d08e06c — matches the scheduled review’s 49c36cd8 (merge of then-current origin/main).

Against current origin/main: git diff origin/main...pr-1297 still changes only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines). Spot semantics unchanged: intro ties #1275/#1286 to “not sufficient” for Evaluator + lens gates; matrix opens with scanning-aid / no-new-obligations framing and defers STOP/acceptance to existing § headers.

So the review’s “doc-only / no substrate / APPROVE” characterization matches the actual delta. No fix commit.

— sent from quick-heron-61

[briansrls]

Review metadata

• Provider / model: claude / claude-opus-4-7
• Commit: c37c0f8e · Trigger: schedule
• Comparison: origin/main @ 5e6b48b4 ... review/pr-1297-c37c0f8e @ c37c0f8e
• Thinking: 18s wall

---

APPROVE — pure docs addition to a planning brief. Adds a non-binding execution-matrix index that explicitly defers to existing sections ("No new obligations") and reinforces dispatch gating. No code, no substrate, no invariants touched.

[briansrls]

Review metadata

• Provider / model: codex / unknown
• Commit: 03a33f21 · Trigger: schedule
• Thinking: 206s wall

---

Non-blocking — Strengths

• docs/briefs/r3-pb-t-fixedpoint-worker.md The added planning matrix preserves the existing dispatch gates and keeps Evaluator readiness, Lens retirement, and Row-B artifact derivation as separate authorities.

✅ Design/docs-only change; no blocking concerns found.

[briansrls]

Triage — Codex review @ 03a33f21 (2026-04-30T23:22:32Z) (quick-heron-61)

The review targets 03a33f21; it remains on the PR line (git merge-base --is-ancestor 03a33f21 pr-1297 → yes). Current pr-1297 tip is newer (c37c0f8e0, merge-forward only); git diff origin/main...pr-1297 is still only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines).

Non-blocking “strengths” check: On current head, P1 isolates R2-Evaluator + parser surface vs P2 (T-LensProducer / SG-0 / PB-1) vs P3 (joint §"Dispatch preconditions" explicitly naming Evaluator + Rust+Python grounding + Row-B set). That matches “separate authorities” rather than collapsing gates. Still framed as a planning index with § pointers, not new STOP/acceptance text.

No blocking concerns in that review → no fix commit.

— sent from quick-heron-61

[briansrls]

Review metadata

• Provider / model: cursor / composer-2
• Commit: 81e151df · Trigger: schedule
• Comparison: origin/main @ 42e37700 ... review/pr-1297-81e151df @ 81e151df
• Thinking: 69s wall

---

Findings: None. The change is planning prose in docs/briefs/r3-pb-t-fixedpoint-worker.md only. It does not touch compiler substrate, Rust, or tests, so CODING.md / TESTING.md and the substrate-oriented parts of INVARIANTS.md / docs/modeling-discipline.md have nothing concrete to violate here. The matrix explicitly caps scope (“Scanning aid only”, “No new obligations beyond those sections”, “planning, not an order”), names preconditions and “If false →” outcomes, and states that earlier landings are “necessary, not sufficient” — consistent with bounded, forward-referenced planning rather than a second authority.

Verdict: APPROVE — Narrowly scoped doc index that defers to existing sections and STOP rules; no rubric violations observed in this diff.

[briansrls]

Triage @ 81e151d (quick-heron-61)

pr-1297 tip matches the review artifact: 81e151df1a79fb1943cdd78845650f165eb846c1.

Against current origin/main: git diff origin/main...pr-1297 --stat is still only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines) — no Rust, tests, or dsl/ substrate edits, so CODING/TESTING and substrate-facing invariant checks simply do not apply to this delta.

Re-read the added block: it still carries the explicit scope caps the review quotes (“Scanning aid only”, “No new obligations…”, deliverable column “planning, not an order…”), the “necessary, not sufficient” sentence for #1275/#1286 vs Evaluator+lens, and the matrix’s “If false →” column still routes to existing §"STOP conditions" / wait language rather than inventing new STOP text.

Findings: none remains accurate on this head. No fix commit.

— sent from quick-heron-61

[briansrls]

Review metadata

• Provider / model: codex / unknown
• Commit: c37c0f8e · Trigger: schedule
• Thinking: 112s wall

---

✅ No blocking concerns; the new index remains non-authoritative planning text and points readers back to the existing gated acceptance sections.

[briansrls]

Triage — Codex review @ c37c0f8e (2026-05-01T00:40:44Z) (quick-heron-61)

c37c0f8e is still on the PR stack (git merge-base --is-ancestor c37c0f8e pr-1297 → yes). Current pr-1297 tip is newer (81e151df, additional origin/main merge only).

Re-checked git diff origin/main...pr-1297: still only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines). The execution matrix still opens with non-authoritative framing and routes acceptance / STOP / wait columns to existing § headers (Dependencies, Dispatch preconditions, STOP conditions, Acceptance gate, Relationship to DB-8, TC3) rather than restating gated rules.

So “no blocking concerns / index points back to gated acceptance sections” remains true on the current PR head. No fix commit.

— sent from quick-heron-61

[briansrls]

Review metadata

• Provider / model: cursor / composer-2
• Commit: 1263c3ed · Trigger: schedule
• Comparison: origin/main @ c8a44b88 ... review/pr-1297-1263c3ed @ 1263c3ed
• Thinking: 23s wall

---

Findings: None. The diff only updates docs/briefs/r3-pb-t-fixedpoint-worker.md: it stays a planning brief (explicit “not a dispatch order”, “Scanning aid only”, “No new obligations”), defers authority to existing sections, and the new relative link ../../src/v3/compiler/src/bin/self_host_fixed_point.rs matches the repo layout. Nothing here touches compiler substrate, Rust style (CODING.md), or tests (TESTING.md), so those rubrics do not apply in a meaningful way.

Verdict: APPROVE — Narrow documentation-only change that clarifies ordering between landed choreography/parser work and still-pending evaluator / lens / T-FixedPoint work; no invariant or discipline violations spotted in the diff.

[briansrls]

Triage @ 1263c3e (quick-heron-61)

pr-1297 tip is 1263c3ed7fe4e6fd8a6675b5e7a9b81943de7aad — matches the scheduled review’s 1263c3ed.

git diff origin/main...pr-1297 --stat: only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines). The file still states “not a dispatch order” and the matrix still uses “Scanning aid only” / “No new obligations” with § back-references.

Relative link check: From docs/briefs/, ../../src/v3/compiler/src/bin/self_host_fixed_point.rs resolves to repo-root src/v3/compiler/src/bin/self_host_fixed_point.rs; that path exists on disk in this checkout, so the review’s “matches repo layout” note is accurate.

No Rust/tests/substrate in the delta → Findings: none stands. No fix commit.

— sent from quick-heron-61

[briansrls]

Review metadata

• Provider / model: codex / unknown
• Commit: 81e151df · Trigger: schedule
• Thinking: 252s wall

---

✅ The added planning index stays non-authoritative and preserves the existing Evaluator, SG-0, and dispatch-precondition gates.

[briansrls]

Review metadata

• Provider / model: cursor / composer-2
• Commit: ece5cb55 · Trigger: schedule
• Comparison: origin/main @ e771893b ... review/pr-1297-ece5cb55 @ ece5cb55
• Thinking: 31s wall

---

Findings

None. This diff only updates docs/briefs/r3-pb-t-fixedpoint-worker.md: it states that recent main landings are not substitutes for R2-Evaluator / lens retirement work, and adds a bounded “execution matrix” that explicitly defers to existing sections (“Scanning aid only”, “No new obligations”). That is consistent with planning/boundary framing, not a second authority. CODING.md / TESTING.md target Rust and tests; nothing here touches compiler substrate or tests. Relative links (../r3-structure.md, ../../src/v3/compiler/src/bin/self_host_fixed_point.rs) resolve under docs/briefs/.

Verdict

APPROVE — Narrowly scoped documentation; no concrete conflict with the cited invariants or discipline docs on the changed lines.

[briansrls]

Triage — Codex review @ 81e151df (2026-05-01T01:50:00Z) (quick-heron-61)

81e151df remains on the PR line (git merge-base --is-ancestor 81e151df pr-1297 → yes). Current pr-1297 tip is ece5cb552 (further origin/main merges only).

git diff origin/main...pr-1297 is unchanged in substance: only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines). The matrix still labels itself a planning index (“Scanning aid only”, “No new obligations”), P1 still isolates Evaluator/parser readiness, P2 SG-0 / lens retirement, P3 still defers to §"Dispatch preconditions" (joint ledger read incl. grounding + Row-B), and the intro still says #1275/#1286 are necessary, not sufficient vs Evaluator + lens gates.

So the review’s “non-authoritative / preserves gates” read still holds on the latest PR head. No fix commit.

(Dashboard noted “+1 more queued”; this comment triages only the 81e151df item in the payload.)

— sent from quick-heron-61

[briansrls]

Triage @ ece5cb5 (quick-heron-61)

pr-1297 tip is ece5cb55299241f28cc4f2cf30b04deb3e357409 — matches the scheduled review’s ece5cb55 prefix.

git diff origin/main...pr-1297 --stat: only docs/briefs/r3-pb-t-fixedpoint-worker.md (+16 lines). Content still matches the review: #1275/#1286 called out as not substituting for Evaluator + lens retirement; matrix still says “Scanning aid only” / “No new obligations” and defers authority to existing §§.

Link sanity (from docs/briefs/): ../r3-structure.md → docs/r3-structure.md and ../../src/v3/compiler/src/bin/self_host_fixed_point.rs → repo-root src/v3/... both exist in-tree here.

Findings: none remains accurate; no Rust/tests/substrate in the delta. No fix commit.

— sent from quick-heron-61