# Active work — cross-machine resume ledger **Snapshot: 2026-07-28.** This file records volatile work that has not landed on `main`. Read it after `docs/agent-handoff.md`. Remove completed entries when their PR merges; do not let this become a second permanent backlog. **One lane below is retained past its merge, and says so at its own head**: the PTY terminate diagnostic (#176), because no landed-doc PR owns moving its facts to `docs/agent-handoff.md` yet, and rule 4 removes a lane only *after* that move. Every other merged lane has been removed — the Lean 4 and GPU-terminal-input headers this paragraph used to disclaim are gone, as are the inline-math (#172), dired (#169), and terminal config + copy mode lanes — the last of these was #180's work, folded into #182 so two open PRs would stop re-conflicting in this file. **Trust the canonical-base line below over any lane header**: if a PR number appears in `git log --first-parent githubsucks/main`, it has landed regardless of what a lane says. ## Repository authority - Canonical development URL: `https://github.com/levineuwirth/pmacs.git`. This ledger uses the normalized local alias `githubsucks` so its refs and recovery commands are identical on every machine. Remote names are otherwise machine-local: `origin` may name this canonical URL, a release mirror, or something else, and therefore has no authority by name alone. - Canonical base at this snapshot: `githubsucks/main` @ `7fd646d` (Journey/GPU directory-target ratchet #183, atop Journey Stage 1a #182 and the previously recorded landed work; protocol v20). The previous snapshot named `c2d56ff`, and **the recovery floor advances with it**: the check below now requires `7fd646d` or newer, so a tree at `c2d56ff` no longer passes. That is deliberate — the floor moves with the base, because a check that accepts an older commit than the declared base passes on a tree the rest of this file does not describe. **Lanes below that name an older base have not been re-based; derive their integration surface from `git diff ..main`.** - On the transfer source, `origin/main` named a release mirror at `d3fa632` and lagged badly. On the current destination, `origin` names the canonical URL. This difference is why all recovery begins by verifying URLs and normalizing `githubsucks` rather than trusting `origin/main`. - The shared desktop checkout contained unrelated uncommitted work. The branches below were prepared in isolated worktrees; never clean or overwrite the shared checkout to recover them. Start on another machine by inspecting its remotes: ```sh git remote -v git remote get-url githubsucks ``` If the second command says the alias is absent, add it; if it prints a different URL, stop and resolve that collision rather than overwriting an unknown remote: ```sh git remote add githubsucks https://github.com/levineuwirth/pmacs.git ``` Then recover current refs: ```sh git fetch githubsucks --prune git log -1 --oneline githubsucks/main git worktree list git status --short --branch ``` The `git log` command must expose `7fd646d` — the base named above — or a newer intentional main. Keep this threshold and the canonical-base line in step: a recovery check that accepts an older commit than the base it declares canonical will pass on a tree the rest of this file does not describe. If it does not, stop and repair the remote/fetch configuration. ## PTY terminate diagnostic lane — MERGED (PR #176) > **Lane retained deliberately, and it is the next one to close.** #176 > merged into `main` @ `bf8878f` (2026-07-26); rule 4 below removes a > merged lane, but only after its durable facts reach > `docs/agent-handoff.md`. **That absorption is unowned** — no landed-doc > PR exists for #176 — so removing the lane now would delete the record > instead of moving it. Whoever opens that PR removes this section. - Portable branch: `githubsucks/pty-terminate-eperm`; worktree `../pmacs-math-slice`. **PR #176**, base `main`, based on `ccf29e3` with `c93f9ee` (#175) merged in. - Approved framing: `docs/process-signal-tolerance-framing.md` **revision 4**, after three review rounds. - **Diagnostic only. No disposition change.** Every call that failed before still fails, with no state transition and no reap-ledger arming. `src/process.rs` is the only source file touched. - **Why nothing is fixed:** revisions 1–3 each proposed a *tolerance* rule and all three were rejected as unsound in the same way — each concluded something about a process from something that was not about that process. Rev 1 from an errno alone (EPERM means the caller lacks permission, not that the id was recycled); rev 2 from `try_wait`, which observes the spawned **leader** while a PTY signal targets `-tcgetpgrp(...)`, entities that diverge exactly when job control has moved the terminal; rev 3 from group-directed **ESRCH**, which proves only that the selected foreground group vanished. - **Two facts that killed the original argument.** `group = true` is *rejected* for PTY mode at spawn (`src/process.rs:1428-1429`), so the reap ledger never applies to the PTY path at all; and the ledger comment (`:1075`) says EPERM "cannot happen for our own children" and drops the entry for **bounded growth** — not a ruling that EPERM means dead. - **The CI evidence never established the child had exited.** The probe's last source statement is a file write and CPython teardown does not synchronise with it, so no tolerance rule could even be shown to fix the symptom. That is the whole reason the lane is diagnostic. - What ships: a failing `kill` now reports five separate facts — target source, target kind/value, spawn-time group, errno, and the leader's real `try_wait` state. The test seam injects the **kill result only**, never the observation, so the real `ChildHandle::try_wait` runs against the real child. - **Not "strictly additive".** `try_wait` reaps and caches, so an exited child may be reaped earlier than otherwise. Safe because `portable-pty` 0.9.0 returns a `std::process::Child` on Unix and delegates `try_wait` to it, so `poll_one` still sees the cached status — pinned by an exactly-one-terminal-event test rather than assumed. - Round-1 review fixes: the exited-child tests no longer use a fixed sleep as proof of exit (nix's `waitid` is unavailable on macOS and `libc::waitid` needs `unsafe`, which the crate forbids), instead driving the production diagnostic in a bounded loop until it observes the exit; and every assertion is now exact message equality built from the kernel-assigned pid, since the substring forms would have accepted a hardcoded target or a wrong exit code. - Bites, all verified rather than assumed: tolerating the failure fails the disposition test; stubbing the leader observation fails three tests including the one-event pin; a hardcoded target fails four; a wrong exit code fails two. - **The sweep found a real defect in these tests, not a flake.** `observing_the_leader_does_not_consume_the_exit_event` failed with "process ProcessId(26) is not running": the pid helper drained for `Started`, and **`drain_until` ticks**. A tick can observe an immediately-exiting child and move the record out of `Running`, after which `signal` never reaches the diagnostic at all, so the bounded loop spun to its limit. It passed standalone because the drain returned on `Started` before `poll_one` saw the exit; only load lost the race. Fast-exiting children now read the pid straight from the supervisor record (no tick), and the loop fails fast if the record left `Running`. **Verified under matched load: 0/15 with all 16 cores saturated, while the old ticking helper fails 1/10 — the fix is load-bearing.** - Verification: fmt, `git diff --check`, strict workspace clippy clean; lib 1,838 + CRDT 2,015 (both +6, exactly the new tests); GPU 202; M4 121; bottom-panel 46; compile-mode 67; vterm 9/6/5; **isolated-config `--no-fail-fast` sweep 3,258 across 93 suites, zero failures**. Earlier sweeps on this branch showed two failures and then one; the totals reconcile (3,256/2 → 3,257/1 → 3,258/0, same test count). The two that were genuinely unrelated — `read_dir_supersede_cancels_in_flight_predecessor` (known pre-existing) and `headless_snapshot_round_trip_summary_restores_the_minimap` — are load-contention flakes; the second is structurally unreachable from this diff, since `pmacs-gpu` depends on `pmacs-protocol` and never on `pmacs`. - **Parked, each with its reason:** all tolerance rules (need the evidence this PR produces); `terminate` idempotence for an already-reaped process (independent fix, different failure, one feature per PR); and `signal_target`'s read-then-kill of `tcgetpgrp` — still the most likely real fix site. - **The lane closes when this merges.** It does not wait for the flake to recur; the next occurrence carries its own evidence under whoever's PR, and a Stage B framing follows then. ## The CRDT half of the test corpus is dark in CI — NEEDS A LANE - **No branch, no framing yet.** Found while gating #166, then measured properly during the vterm as-framed audit. Deliberately kept out of #166 so a CI change would not arrive after review approval. - **Root cause:** `.github/workflows/ci.yml` never enables the `crdt` feature anywhere — zero hits across the workflow directory. The `test` job runs `cargo test --all-targets --no-default-features --features luajit|lua54`. Every `#[cfg(feature = "crdt")]` test is therefore **not compiled** in CI, not merely skipped. - **Measured, `--list` under CI's exact flags versus the same flags plus `crdt`: 3,176 vs 3,449 — 273 tests dark.** Re-measured at `74301d1` (2026-07-26; at `fe8b8ba` it read 3,170 vs 3,443, the same 273 dark — #176 added six tests, none of them `crdt`-gated). **The number moves with every merge and must be re-measured, not quoted.** #168 reported 3,024 vs 3,288 — 264 dark, 177 in the library — at `1b6a084`; #178 then added CRDT-only generated-buffer coverage, and other lanes landed CRDT tests in between. Per target: | dark | CI | full | target | |---:|---:|---:|---| | 185 | 1,848 | 2,033 | **the library itself** (`src/lib.rs`) | | 21 | 15 | 36 | `m5_5_acceptance` | | 13 | 1 | 14 | `gpu_invocation_acceptance` | | 13 | 1 | 14 | `gpu_initial_target_acceptance` | | 8 | 0 | 8 | `m10_11_acceptance` | | 6 | 0 | 6 | `auto_pair_crdt_acceptance` | | 6 | 0 | 6 | `m10_2_perf` | | 4 | 5 | 9 | `vterm_stage3_acceptance` | | 4 | 0 | 4 | `m10_10_perf` | | 3 | 0 | 3 | `compile_mode_crdt_acceptance` | | 2 | 22 | 24 | `theme_faces_acceptance` | | 2 | 0 | 2 | `m11_5_semantic_acceptance` | | 1 | 14 | 15 | `terminal_copy_mode_acceptance` | | 1 | 9 | 10 | `vterm_stage1_acceptance` | | 1 | 7 | 8 | `statusline_segments_acceptance` | | 1 | 10 | 11 | `gpu_font_acceptance` | | 1 | 0 | 1 | `auto_indent_crdt_acceptance` | | 1 | 0 | 1 | `m10_11_perf` | The rows sum to 273; the table is the whole census, not its head. - **The single worst line is the library.** `cargo test --lib --features crdt` is a REQUIRED local gate in `CLAUDE.md`, and CI has never run it. 185 library tests — the whole CRDT half — are developer-machine-only, and that count grows with every merged branch that adds a `crdt`-gated unit test. - **Ten suites run zero or one test in CI**, including `gpu_initial_target` (#148's entire acceptance, 1/14), `gpu_invocation` (#141's, 1/14), and `a37`, the Vterm Stage 3 real-daemon/real-PTY/real-wgpu path that #135 built specifically because "a decoded-message fixture would prove none of the three fit together". - **⚠ `a37` will report green in the new job without running, unless the job builds `pmacs-gpu` AND sets `PMACS_REQUIRE_GPU=1`.** Measured 2026-07-26 while gating #173. `a37_real_daemon_real_pty_and_headless_gpu_ render_one_terminal_session` derives its sibling binary path from `CARGO_BIN_EXE_pmacs`, and on a missing binary it `eprintln!`s a skip and **returns `ok`**. A fresh worktree running `cargo test --features crdt --test vterm_stage3_acceptance` reports **9/9 in 0.17 s having never run it**; a real run takes ~4 s. Only `PMACS_REQUIRE_GPU=1` promotes that skip to a failure, and `CLAUDE.md` applies that flag to `cargo test -p pmacs-gpu` — a **different package**, so the required local gate does not cover a37 either. The `gpu-render` job already sets the flag, which is what makes fix-shape part 2 sound; state it as a **requirement** of that job rather than inheriting it by luck, because a `crdt` leg added to the plain `test` job would run a37 vacuously. - **`a37` is also load-sensitive, which changes how to read the expected first-run failures.** It passed at `d152120` and failed at that *same commit* twenty minutes later, with a second agent saturating the machine with `rustc` in between; it then failed identically on `d152120`, `04c5ad1`, and the #173 merge commit, which is how #173 established the failure was not its own. The signature is `last_frame_text` all spaces with `rendered_nonuniform_frames` nonzero — frames arrive, content does not. `pmacs-gpu`'s own suite flaked the same way under the same load (201/202, then 202/202 on immediate rerun). **So a red a37 on the first CI run is ambiguous by construction**: before treating it as a real failure, run the same command on the merge base, and prefer serialized execution for this suite over retry-until-green. - **Sort deliberate from accidental before proposing a fix.** Some of the 264 are perf suites that are `#[ignore]`d by default and belong to their own jobs (`m10_2_perf` 6, `m10_11_perf` 1). `m10_10_perf` has **no** `#[ignore]` and no CI job naming it, so it looks accidental. This classification is not finished and is the lane's first task. - **Fix shape, two parts** (the flag combination is verified to work: `--no-default-features --features luajit,crdt` lists 10 vterm Stage 1 tests versus 9 without): 1. a `crdt` leg on the `test` job for the non-GPU suites and the library; 2. the GPU-requiring `crdt` suites onto the existing `gpu-render` job, which already has lavapipe and `PMACS_REQUIRE_GPU=1` — `vterm_stage3_acceptance`, `gpu_invocation_acceptance`, `gpu_initial_target_acceptance`, `gpu_font_acceptance`. - **Expect first-run failures, and budget for them.** These would execute in CI for the first time ever: real PTY timing on CI runners, wgpu under lavapipe, and daemon-socket tests at unfamiliar concurrency. Start ubuntu-only and decide about macOS from evidence. A red first run is the lane working, not the lane failing. - Mitigating fact, verified rather than assumed: #166's three unit pins are **not** `crdt`-gated and do run under CI's exact flags, including the controller-release pin whose only job is catching the plausible wrong fix. - **This lane also owns a `--lib --features crdt` flake, observed and scoped without overclaiming its cause** (inherited from #178's gating, where the terminal lane recorded it). `cargo test --lib --features crdt` failed ~1 run in 5 on `process::tests::setsid_escapee_is_not_reaped_and_teardown_reclaims_readers` — `active_reader_probe` returning `None` at `process.rs:3179` ("live runtime probe"). **Pre-existing and unrelated to #178:** that branch did not touch `src/process.rs` at all, and the test passed 10/10 standalone; the observed failures were during parallel full-suite runs. That localizes the trigger to suite load or interaction, but does **not** distinguish parallelism from another full-suite effect — no serial full-suite bite was run. The leading code-path explanation is the known `drain_until` trap: draining for `Started` also ticks, and a tick can reap the leader before the following `active_reader_probe`. That is an inference from the failure site and control flow, not yet a falsified root cause. Discriminating it belongs here. Two unnamed CRDT failures in #178's round-2 gating are a plausible match but remain **unattributed** — no test names were captured. - **A second standing obstacle for this lane:** `cargo clippy --workspace --all-targets --features crdt -- -D warnings` **fails on `main`** — measured at `74301d1`: seven errors before the build aborts, four in `src/daemon.rs` (`useless_conversion` at 3996, missing doc backticks at 4076, `too_many_lines` 112/100 at 4083, an unneeded `mut` at 4965) and three in `tests/vterm_stage3_acceptance.rs` (`too_many_lines` at 637 and 793, a redundant `continue` at 843). **Treat that as a lower bound, not an inventory:** Clippy abandons the remaining targets once one fails, and a run on an older tree surfaced a further doc-backticks error in `tests/auto_indent_crdt_acceptance.rs:42` that this run never reached. The standing gate list runs Clippy without `crdt`, so these lints have never been enforced. Any CI job that compiles the `crdt` targets has to fix them first or it will be red on arrival. ## Bottom-panel lane (Arc 7) — 2B-1 GATED; PR #184 OPEN FOR REVIEW Stage 1, the Stage 2 framing, and Stage 2A are on `main`. Framing revision 5's three-way split of 2B was explicitly approved on 2026-07-27. **Stage 2B-1 is implemented, integrated with canonical `main` @ `7fd646d`, and fully gated at `c8895a8`; it has no remaining dependency. PR #184 is open and must not merge before user review.** - **Stage 2B-1 branch:** `bottom-panel-stage2b`, based on `githubsucks/main` @ `7fd646d` by merge because review had begun. Recovery: `git fetch githubsucks && git checkout bottom-panel-stage2b`. Everything described through the integration and gate checkpoint is committed and pushed; nothing depends on a worktree or `/tmp`. PR #184: . - **Ships only the v21 wire layer:** the four wire shapes, version bump, shared cell-grid validator, and version-ladder move. It has no producer, consumer, or capability change; `panel_capable` stays `false`, so this slice changes no user-visible journey grade. - **Review round 1 closed:** two P1s and one P2, all corrected at `9b364ad`: `PanelFrame` now identifies its buffer, the transport ratchet covers the actual attach path rather than a detached codec assertion, and shared grid bounds have one validator. - **The full gate found and corrected two 2B-1 omissions:** the statusline version ladder still pinned v20/rejected v21, and Vterm Stage 3 pinned v20 both structurally and in its real headless probe. Those ratchets now expect v21 and, where applicable, reject v22. - **Pre-integration green evidence at `b9123c2`:** formatting and strict workspace Clippy; library **1,849 passed + 3 ignored default** and **2,034 passed + 4 ignored CRDT**; bottom-panel Stage 1 / 2A / 2B-1 **46 / 17 / 15**; folding Stage 2 **48**; GPU font **11**; statusline **8 CRDT**; m11_5 semantic **2 CRDT**; Vterm Stages 1 / 2 / 3 **10 / 6 / 9 CRDT**, with Stage 3's real daemon + PTY + wgpu probe required and green; M4 **121 passed + 3 ignored + 1 filtered**; required GPU **202**; and the isolated-config, one-invocation full workspace sweep green on rerun. Its first pass hit the known completion-before-supersede race in `m8_1_acceptance::read_dir_supersede_cancels_in_flight_predecessor`; the exact pin, its full 10-test target, and the complete workspace rerun all passed. - **The former deterministic red is resolved on `main`.** PR #183 corrected `gpu_initial_target_acceptance` through the public `pmacs --gpu .` path, consumed the asynchronous dired snapshot, and retained the managed daemon before the wait so failure cleanup remains effective. The code integration auto-composed. - **The complete post-integration gate is green at `c8895a8`:** formatting; strict workspace Clippy; library **1,849 passed + 3 ignored default** and **2,034 passed + 4 ignored CRDT**; bottom-panel Stage 1 / 2A / 2B-1 **46 / 17 / 15**; folding Stage 2 **48**; GPU font **11**; statusline **8 CRDT**; m11_5 semantic **2 CRDT**; GPU initial target and invocation **15 / 15 CRDT**; Vterm Stages 1 / 2 / 3 **10 / 6 / 9 CRDT**, including the required real daemon + PTY + wgpu probe; M4 **121 passed + 3 ignored + 1 filtered**; required GPU **202/202**; the isolated-config, one-invocation full workspace sweep; and `git diff --check`. - The first required-GPU pass was **201/202** on `a_fraction_draws_rule_pixels_between_its_operand_rows`, a rendering test structurally outside this lane's protocol-only GPU diff. The exact test passed immediately in isolation with one test thread, and the mandatory complete rerun passed **202/202**. This is retained as classified gate evidence, not erased as a clean first pass. - **Next ordering is fixed:** 2B-2 branches from `main` only after 2B-1 lands; 2B-3 branches only after 2B-2 lands. The daemon epoch machine belongs to 2B-2; the GPU band and negotiated capability flip belong to 2B-3. - **Stage 2A MERGED as #177** (`main` @ `0a3fcd1`, 2026-07-26, all twelve checks green at `8424172`, three review rounds). Branch `githubsucks/bottom-panel-stage2a` and worktree `../pmacs-bp-stage2a` are retained and carry nothing unmerged. Five commits: the classified census routing, the painter extraction + acceptance, the lane record, then the round-1, round-2 and round-3 review fixes. **No protocol change; no behavior change for any frontend today** — with `panel_capable = false` for semantic sessions, `primary_document_window` returns `view.active` in every existing configuration, so this is seam adoption that becomes load-bearing in 2B. - **Stage 2A verification on its merge result:** `cargo fmt --check` clean; strict workspace Clippy clean; **1,832 default + 2,015 CRDT** library tests; `bottom_panel_stage2a_acceptance` **17**; bottom-panel Stage 1 46; statusline segments 8 CRDT; m11_5 semantic 2 CRDT; GPU initial target 14 CRDT; terminal config 12 CRDT; vterm Stage 1/2 10 / 6; folding Stage 2 48; M4 121; required GPU 202; `git diff --check` clean. - **Every routed producer is now pinned at a seam its production caller uses, and each pin was falsified by revert**: #1 follow, #2 lazy CRDT upgrade, #3 `CursorByte`, #5 decorations, #7 `Viewport` (aligns without focusing), #8 `Pointer` (aligns and focuses), #9 the terminal-context gate, #12 statusline, #21 the publication filter, plus the focus-class negatives. #1/#3/#21 required extracting three named helpers, because their only production caller is `dispatcher_loop`, which no test can drive. - **Three lessons about the TESTS, not the code, all from review:** (a) a *structural* test comparing the two authorities directly does **not** catch a misrouted consumer — only consumer-level assertions do; (b) a daemon-path test must `register_session` or the event is dropped at the uninstalled-session check before reaching the code under test; (c) a discriminating fixture must make the two routings DISAGREE — comparing two non-terminal buffers, or two windows with no selection, yields the same answer either way and proves nothing. Round 2 found four of my own pins vacuous by exactly these shapes, and round 3 found two more problems of the same family: a pin placed at a HELPER while production called it from a producer (reverting only the producer's call site left every test green), and a socket-pair assertion whose blocking read made a regression HANG instead of fail. Both now assert at the producer, with read timeouts on every read. - **Review round 1 closed: 4 P1 + 2 P2, all real.** The P1s were a stale-`Pointer` focus steal (the failed-alignment arm returned the window, so #8's activation focused it before `dispatch_pointer` rejected the buffer), the missing A2A-2 two-context fan-out, a census suite that asserted the AUTHORITY rather than the CONSUMERS, and the missing main integration. **Two of the new pins were themselves vacuous on the first attempt** — the dispatcher test passed because an unregistered session is dropped at `daemon.rs:1962` before reaching the aligner, and the painter test was a fixed-point check that survived deleting `text_view.render`. Both now fail under their own bite. - **`vterm_stage3_acceptance::a37` is a pre-existing flake here**, not a Stage 2A regression: measured **6/8 failures on the base commit** and **7/8 on the branch** in matched isolated samples. It needs a real daemon + real PTY + headless GPU and is documented load-sensitive. It also silently returns `ok` unless `pmacs-gpu` has been built, and is `crdt`-gated so CI never runs it at all. - **Two suites are dark without `--features crdt`**: `m11_5_semantic_acceptance` reports **0 tests** and `gpu_initial_target_acceptance` reports **1** in the default config. Both are semantic-census suites, so Stage 2A must be gated with the feature on or its most relevant coverage never executes. - Stage 1 merged as **#155** (`main` @ `e745068`, 2026-07-24, after two review rounds). No protocol change. Durable substrate facts live in `docs/agent-handoff.md` §1; the two round lessons are in §5. - Landed-docs follow-up merged as **#156** (`main` @ `d152120`, 2026-07-25). - **Stage 2 framing: `docs/bottom-panel-stage2-framing.md` revision 5** is commit `56301ed` on branch `githubsucks/bottom-panel-stage2b`, worktree `../pmacs-bp-stage2b`. Revisions 1–4 remain on `githubsucks/bottom-panel-stage2-framing` (head `4fbd47f`, four framing commits, revision 4 at `49757e5`). Round 1 closed 2 blocking + 3 high; round 2 closed 1 blocking + 2 high + 1 medium and decided both open items; round 3 closed 1 blocking + 1 high + 1 medium. No open items remain. Revision 5 adds no decision; it records the approved 2B-1/2B-2/2B-3 implementation split. The parent framing `docs/bottom-panel-framing.md` (rev 4) remains authoritative, **including its acceptance criteria 37–55**. - Retained, carrying nothing unmerged: branch `bottom-panel` and worktree `../pmacs-bottom-panel`. - **Stage 2 ships as four serial implementation slices**, each landing before the next branches: **2A** = classified §1.3 census routing + `paint_frame` per-window painter extraction (with the active-window auto-scroll preparation), no protocol change; **2B-1** = protocol **v21** (`InstanceMessage::PanelFrame` plus `FrontendEvent::{FrontendCellGeometry, PanelResizeRows, PanelPointer}`, gated both directions, each extended enum byte-pinned on its own previous final variant); **2B-2** = daemon panel projection and epoch machine; **2B-3** = the GPU band and negotiated `panel_capable` flip. Stage 3 is the adopter default flip. - **Correction — this entry previously mis-stated the census contract.** It is **not** "route every consumer through `primary_document_window`". Q#BP14 classifies the 23 reads into four classes and routes only the **Projection** class that way; focus/input (#13–#15, #23), focus chrome and surface-routed (#16–#19), and focus/session (#20) keep their own authorities. Rerouting them would break remote-op validation and application, `DispatchIdle`, presence, focused search/menu/completion routing, and terminal bell ownership. The Stage 2 framing carries the full table. - **The GPU document bottom is three boundaries, not one.** `text_area_bottom` (`pmacs-gpu/src/main.rs:8490`) is today `status_band_top`, `geometry_capacity_bottom`, and `document_text_bottom` at once. Once a band is installed they diverge: the status chrome must stay pixel-identical at the physical window bottom while document consumers move. A blanket rewrite of that helper moves both together and passes an "everything moved" assertion, so the Stage 2 criterion asserts **both directions in one scenario**. The census is 20 production sites (8 status-owned, 12 document-owned) + 1 definition + 8 test sites = 29 matches; the framing carries the per-site table. The three easiest to misclassify are document completion `:6140`, minibuffer candidates `:7351`, and edge scrolling `:8561` — each with its own visible symptom. - **Folding Stage 3 and this arc's Stage 2 both touch the semantic projection.** Whichever is framed second re-scouts the other's landed state. ## Folding lane (Arc 6) — Stages 1 and 2 MERGED; Stage 3 (GPU) is next Both shipped stages are on `main`; nothing in this arc is in flight. Stage 3 has **no branch and no framing yet**. - Stage 1 (headless fold engine) merged as **#142**, Stage 2 (grid/daemon collapse) as **#149** — both under "Closed since the last snapshot". - Retained, carrying nothing unmerged: branches `folding` / `folding-tui` and worktrees `../pmacs-folding` / `../pmacs-folding-tui`. The framings `docs/folding-framing.md` (rev 5) and `docs/folding-stage2-framing.md` (rev 4) are the approved artifacts Stage 3 re-scouts against. - **Stage 3 (GPU) obligations, already named by the framings** — the starting point for its own framing doc: GPU collapse at TUI parity; caret/hit-test fold-awareness; the `BufferSnapshot` **fold-mirror clear** (parent R2-4 — without it, empty-after-revert diff suppression leaves stale folds on the GPU, the same trap class as #120); CRDT-origin and GPU-optimistic interactive unfold (parent R2-3); and flipping `FrontendView.fold_projection` to `true` for semantic frontends, which Stage 2 deliberately left `false` (Q#FD21). ## Parked lane: kill-ring browser + persistence - Portable branch: `githubsucks/kill-ring-browser` - Parked framing head: `503c489` - State: framing only, revision 2; no implementation and no PR. - Status: explicitly parked by the user on 2026-07-20. - Its original scout was based on `0efb5cd`. The preserved framing marks this ground truth stale and requires a complete re-scout against the then-current `githubsucks/main` before implementation. - Compile-mode has merged since the original scout, so old “compile-mode in flight” keybinding/touch-set assumptions are not authoritative. Recovery worktree, only when the user un-parks it: ```sh git worktree add --track \ -b kill-ring-browser \ ../pmacs-kill-ring-browser \ githubsucks/kill-ring-browser ``` ## Documentation lane - Portable branch: `githubsucks/handoff-2026-07-20` - Carries synchronized `AGENTS.md` / `CLAUDE.md`, this ledger, the durable handoff refresh, and the keybinding reference correction. - It changes no runtime code. - Review and merge this documentation branch separately; it must not be folded into a feature framing branch. - Now also absorbs both landed arcs: Vterm Stage 1 (#126) and the config registry (#127). Canonical `main` is merged into it up to `2e37c04`, so its diff against `main` is documentation only. ## Closed since the last snapshot - **Terminal configuration + copy mode arc — BOTH STAGES MERGED, lane removed.** Stage 1 **#173** (`main` @ `cf54270`, one review round) and Stage 2 **#178** (`main` @ `fe8b8ba`, **four review rounds**, twelve checks green on head `1b44c69` — verified by `head_sha`, not by the check summary), both 2026-07-26, both with no protocol change. Approved framing: `docs/terminal-config-and-copy-mode-framing.md` rev 4, committed as the first commit of Stage 1's branch; its Q#TC6a carries a superseded-in-part box rather than a silent rewrite. Durable facts moved to `docs/agent-handoff.md` §1 (the arc bullet) and §4 (the `set_generated_contents` invariant) per rule 3 below, and to `COHERENCE.md` §14. **Stage 2 ships eight of nine criteria and the missing one is named** — criterion 17 needs a real GPU frontend, so it waits on the `a37` footing; the handoff records what it must assert. Branches `githubsucks/terminal-config` and `githubsucks/terminal-copy-mode` with worktrees `../pmacs-terminal-config` and `../pmacs-terminal-copy-mode` are retained. The gate-run flake found while gating #178 moved to the CI `crdt`-coverage lane above, which owns its discrimination. - **Dired Stage 1 (the directory view) — MERGED as #165** (`main` @ `c8ec8f3`, 2026-07-25, after one review round). pmacs has a directory surface: `C-x d` / `C-x C-j`, one read-only buffer per directory named `*dired:*`, a `dired` major mode carrying `RET`/`f`, `^`, `n`/`p`, `g`, `q`, `s`. No wire change (v20). The Rust is two things — a per-entry-tolerant `read_dir` (Q#DR6), which had to be Rust because `read_dir_blocking` fails a whole listing on any of five per-entry conditions and a tolerant wrapper cannot be written in Lua at all, and `normalize_buffer_path` going `pub` as `pmacs.path.canonicalize` (Q#DR2's preferred end state, so no Lua mirror exists and Stage 2 owes no mirror removal). The frozen m8_1/m8_2/m8_3 counts are unchanged, which is the additivity gate. 15 claims bite-verified; one came back VACUOUS (acceptance 3c cannot pin descent routing — dired holds focus in its own panel, so dedication is the only discriminator) and is documented at the assertion rather than relabelled. Its branch (`dired-stage1`) and worktree (`../pmacs-dired-stage1`) are done; the abandoned `dired` branch (`ffdd642`, `../pmacs-dired-arc`) was superseded by a fresh cut and carries nothing unmerged. **Stage 2 (marks and operations) and Stage 3 (wdired) each still need their own framing**, and the frozen fixture shrinks after Stage 3. Durable substrate facts and both new ops lessons live in `docs/agent-handoff.md` §§1/5; the implementation notes are `docs/dired-framing.md` §0, S1-1…S1-12. Two named forward items for Stage 2: `apply_resource_op`'s rename rebind is exact-PathBuf-equality, first-match-only, looked up with the raw path while stored paths are normalized — so a directory rename strands every buffer under it, and `pmacs.fs.rename` has zero production callers, so it can be fixed at the primitive; and Q#DR5's seam is the main-thread drain `AsyncRuntime::tick`, not `_take_result`, where rename settles as an undifferentiated `ReplyKind::FsUnit` and so must be keyed on `JobKind::FsRename`. - **GPU terminal input (the double terminal-layout sync) — MERGED as #166** (`main` @ `b889873`, 2026-07-25, one review round, all twelve checks green after a macOS PTY-timing rerun). The dispatcher applied **both** terminal-layout syncs to **every** attached frontend; a semantic session satisfies both conditions, so its PTY was resized twice per tick forever and the child took a `SIGWINCH` storm that made a GPU terminal untypable while output still flowed. `sync_terminal_layout` is now split into a frontend-kind-neutral half (panel reconcile + controller liveness) and a grid-only geometry half, with the loop body extracted to `sync_terminal_layouts_for_tick` so the exclusivity is structural. No protocol change (v20). Durable lessons are in `docs/agent-handoff.md` §5; the framing (`docs/gpu-terminal-input-framing.md` rev 2) carries three falsified hypotheses, the two-pre-image bite matrix, and two named out-of-scope items (Q#GT5 interactive-shell echo on a raw PTY, which reproduces in-process and so is not the GUI/TUI asymmetry; and a geometry change appearing to clear the visible screen, which reproduces pre-fix). Branch `gpu-terminal-input` and worktree `../pmacs-gui-term-input` retained. **Its landed-doc pair MERGED as #168** (`main` @ `1b6a084`, 2026-07-26): #166 recorded as landed, the CI `crdt`-coverage gap measured (**264 tests dark workspace-wide**, 177 in the library — a reading taken at `1b6a084` and kept here only as history. **The CI `crdt`-coverage lane above is the authority for the live figure**; do not quote this one forward), the vterm audit corrected — "only 3 of 9 acceptances drive a real daemon" was optimistic; without the frontend binary the honest number is **2** — and the a37 findings folded into the coverage lane. - **Inline-math slice — MERGED as #158** (`main` @ `5aa9044`, 2026-07-25). Detect → parse → layout → draw for `$…$`, entirely inside `pmacs-gpu`, no protocol change. Verified by the user's manual pass on a real paper after the landing. What is worth carrying forward: - **The v0 subset is 34 Greek symbols, sub/superscript, and `\frac`.** An unsupported command fails the **whole span** back to source, so on a real document most inline spans still show LaTeX. Widening the symbol map is the highest-value next increment — ahead of display math, which is also deferred. - **A stale frontend binary is invisible from the source tree.** The slice lives only in `pmacs-gpu`, so after it merged the feature was absent until `cargo build --release -p pmacs-gpu` and a client restart; the daemon needs neither. Diagnose with `strings` on the binary (`Latin Modern Math`, `MathBox`) rather than by re-reading the checkout, which was already current. - **Main was integrated three times in one day** (`8c86d34`, `46a1b8f`, `b889873`), merged not rebased to preserve review anchors. Two conflicts, both this ledger and nothing else. **The dangerous case was the one that did NOT conflict**: #166 auto-merged into `pmacs-gpu/src/main.rs`, the file this lane rewrites, because the two edits sat in different regions of it. Decide whether to integrate from the shared-**file** set, never from whether git complained. - **Integration was proved by test-count reconciliation**, not by a green run: predict what the other side adds, then check the deltas. GPU 199→202 matched `e547a90`'s 3; later lib 1,826→1,829 and CRDT 2,003→2,006 matched #166's 3, with GPU unchanged because #166 adds none. Suites 91→92 was #161's new binary. - **Why the branch had no CI for a day**: a conflicting PR builds no merge ref, so no `pull_request` run is created. The ledger previously recorded this cause as unidentified; it is not. Check `mergeable` and confirm a run exists for the current head SHA. - **`m4_5_basedpyright` has no timeout and hangs forever**, parking a `--workspace` sweep (observed 2h26m at 38 of 92 suites). It is **intermittent**, so an earlier clean sweep proves nothing. Sweep with `cargo test --workspace --no-fail-fast -- --skip basedpyright` and judge progress by whether the suite count advances. - Named v0 approximations: the peer-caret half of acceptance 14 is pinned at the mapping level, not pixels; a soft-wrapped spacer draws its box whole at the first run's origin; the fit budget reads the bundled code face even under a custom `set_font` family. - **Bottom panel Stage 1 — MERGED as #155** (`main` @ `e745068`, 2026-07-24, after two review rounds). Window placement, window parameters, TUI side windows, the divider, and the adopter `display` opt-in, with no protocol change. Both rounds found the same class of defect and are worth keeping: - **Round 1**: the Q#BP6 side-window split guard had *no production caller* — `C-x 2` still reached plain `split_active` — and survived because the acceptance test called the core method directly. - **Round 2**: Q#BP7's terminal growth re-arm had *never been implemented*, and the assertion meant to pin it (`at_bottom`) is a geometric readout that a still-anchored view satisfies; the anchor assertions beside it compared `""` with `""` because the PTY fixture emitted LF-only output. - **Post-round-2 self-review**, caught by CI going red on all four Test jobs: resolving `pmacs.window.buffer()`'s no-argument arm through the acting frontend made a total function partial, and six runtime modules silently dropped operations (`kill_ring_acceptance` 30/30 → 25/5). Fixed in `9110f9f` before merge. - Gating fact found on the way: **the workspace sweep must run with an isolated `XDG_CONFIG_HOME`**, because the real user `init.lua` installs a local package and the losing race leaks a status message into painted-frame comparisons. There is also a latent pre-existing `main` bug in the buffer CRDT undo path, unrelated to this arc. - `compile_mode_acceptance` is load-sensitive under default parallelism (~1 run in 3, a different test each time); verified pre-existing by swapping in `main`'s `compile.lua`. It is 67/67 at `--test-threads=1`. - **GPU initial target — MERGED as #148** (`main` @ `0dd16a5`, 2026-07-24, after two review rounds). `pmacs --gpu [--socket …] FILE` opens a target before the GPU window appears. Protocol bumped 19 → 20: a semantic-session `SessionBootstrapRequest` after `AttachRequest`, plus an appended `InstanceMessage::InitialTargetResult` pre-window readiness barrier; v6–v19 wire encodings are unchanged. Root owns launcher tilde/cwd resolution and exact raw-byte path transport; the daemon resolves/dedups/loads the target and runs load/switch hooks inside one dispatcher transaction, then publishes CRDT-upgraded targets to existing grid replicas (gated on `upgraded_to_crdt`, independent of the load/create outcome, so a dedup onto a hidden not-yet-backed buffer still reaches pre-attached replicas — round 2 finding). Semantic replicas receive a publication only when displaying that buffer, so a second target launch cannot switch an existing GPU window. Round 2 also closed a failure-containment gap: every dispatcher-side bootstrap failure now shuts down the socket (a dropped write-half clone does not close a shared FD), and the dispatcher drops any event from a session that was never installed, rather than reaching absent render/size state. Integrated cleanly with Folding Stage 2 (#149): fold projection at attach is selected from the same negotiated `semantic_render` bit the target bootstrap uses. Its lane, worktree (`../pmacs-gpu-initial-target`), and branch (`gpu-initial-target`) are done; the `-framing` branch is kept. Durable substrate facts and both review-round lessons live in `docs/agent-handoff.md` §§1/5 and `docs/gpu-initial-target-framing.md` rev 3. - **Folding Stage 2 (grid/daemon collapse) — MERGED as #149** (`main` @ `6ed4fe9`, 2026-07-24, after **five** review rounds). The grid TUI now renders collapses. Spine (Q#FD12): `src/fold_view.rs`'s `VisibleLineMap`, derived from the fold store plus a window's line offsets and **never stored**, threaded as `Option<&'a VisibleLineMap>` on a lifetime-bearing `Viewport<'a>` that stays `Copy`. No wire schema or protocol change; the GPU path is Stage 3. 48 acceptance tests on the real `paint_frame` grid, every behavioral claim bite-verified. Durable design points, each a trap Stage 3 inherits: - the map's unit is a **merged hidden component** (overlapping *or adjacent* intervals unioned, keeping the earliest visible head), not a fold — folds may cross, and a later fold's own head can be hidden; - instances are **per rendered window** and **per command/event operation**, never per frame; a command's map follows the operation's **target** window, since a wheel event names a pane without activating it; - fold projection is **per-frontend** (`FrontendView.fold_projection`) — shared `EditorCore` motion would otherwise make a simultaneous unfolded GPU session's cursor skip lines it still displays; - a hidden cursor normalizes by **position**, not row, and `set_view_top` clamps in the setter rather than being repaired at render time; - the interactive-Lua unfold keys on the **post-intercept** edit site — a managed buffer intercept may legally relocate the op. Process notes worth keeping: `main` moved under the arc, and the merge was textually clean but **not semantically clean** (#146 added `Viewport` literals the new `folds` field invalidated) — a clean `git merge-tree` does not mean the merged tree compiles. CI was red at review on the macOS/luajit `outline_5_level_100_entry_renders_within_100ms` budget flake and went green on rerun. - **Documentation ledger refresh — MERGED as #147** (`main` @ `0a479ae`, 2026-07-24). The #142 housekeeping, expanded after review found the ledger stale through four merges rather than one. Its own macOS/luajit red was the vterm `VTERM_ALT_READY` PTY timeout; green on rerun. - **Web grammars HTML + CSS — MERGED as #146** (`main` @ `47581f4`, 2026-07-23). `.html/.htm/.xhtml` and `.css` highlight off the official `tree-sitter-html` 0.23 / `tree-sitter-css` 0.25 crate query constants (no in-repo overlay), and HTML's `INJECTIONS_QUERY` lights up `