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96 Commits

Author SHA1 Message Date
Levi Neuwirth 689fb8333d
feat(workers): a required purpose on every job and process — worker identity Stage 1
`COHERENCE.md` §9 grades the worker model "mechanism without identity",
and §0 names step 11 (background-work ownership) as one of the two
remaining thin ends of the golden journey. The mechanism half is solid —
cancellation, supersession, streaming, frame-aware draining, `*workers*`.
The identity half was absent: `PendingJob` carried no description of what
it was doing, `pmacs.workers.dispatch` discarded the registered handler
name three layers above anything that takes one, and §9's "no progress
indicator exists anywhere" was checkable and true.

Framing: `docs/worker-identity-framing.md` (revision 4, approved).

What lands:

**A required `purpose`, on the job and on the process.** Non-optional,
with no `Default`, so the compiler — not a test — is what proves every
dispatcher supplied one. `allocate` / `allocate_with_resource` collapse
into ONE private `JobSpec`-taking funnel (Q#W-1): the two-function split
existed only because one prior lane needed one extra parameter, and a
second lane doing the same produces `allocate_with_resource_and_identity`.
`register_external` gains a `purpose` parameter rather than deriving one,
because its `JobKind` is `McpRequest`/`LspRequest` for every method — a
category, not a description.

**A dispatch-name ambient (Q#W-2), read at that same single funnel.** The
capture point is Rust, not the Lua wrapper layer, because a handler
reaching straight for `pmacs._async._dispatch_*` bypasses the wrappers
entirely — and those are precisely the callers attribution exists for.
Seven rules; the ones that decide whether it is honest:

- **Rule 1 — the extent is NON-YIELDABLE, and that is ENFORCED.** Both
  supported yield APIs refuse inside it, modelled on the `commit_to`
  refusal already in `async.lua`. The guards reject BEFORE parking and
  reject UNCONDITIONALLY: one placed after `_is_complete` would fire only
  when a yield really occurred, passing under test and failing
  intermittently in production.
- **A raw `coroutine.yield` is NOT covered, and nothing here claims it
  is.** R46 is a convention, and the scheduler inspects the yielded value
  only after `coroutine.resume` returns — by which point the coroutine has
  already suspended — so no refusal sited in a yield helper is ever
  consulted. The residual is recorded in the framing §2 and in the
  suite's module docs rather than papered over with a test that would
  imply coverage this design lacks.
- **Rule 5 — unwind-safe.** A raising handler still pops. A version that
  did not would let one failure poison every later dispatch in the session
  with a stale name: the feature would stop failing loudly and start lying
  silently. The bracketing also has to preserve the tail call it replaced:
  `dispatch` was `return handler(args, opts)` and propagated EVERY return
  value, so the pop/rethrow runs behind a varargs boundary rather than a
  `local ok, result = pcall(...)` that would silently truncate a
  multi-value handler. Varargs rather than `table.pack`, because that is
  Lua 5.2 surface and LuaJIT is this project's default backend.
- **Rule 6 — compose, do not replace.** `"<name>: <purpose>"`, because
  letting the dispatcher's purpose win loses the third party again and
  letting the name win discards the only description of the actual work.

**A statusline activity indicator** — the fourth `pmacs.statusline.register`
adopter, after `mode`, `terminal` and `lsp`. A count plus the OLDEST
in-flight job's purpose ("busiest" is not a defined quantity; jobs carry
no cost estimate), and **absent entirely** when idle rather than a
zero-width segment that costs modeline width forever to say nothing is
happening. Gated by one setting, `ui.activity-indicator` (boolean, default
true, Q#W-6) — a permanently-visible modeline element is a preference
someone genuinely holds on day one. No setting for purpose capture
itself: that is substrate.

**NO WIRE CHANGE.** The indicator rides the existing `StatuslineSegments`
vector, so a fourth provider adds an element, not a variant.
`PROTOCOL_VERSION` and `ADVERTISED_PROTOCOL_VERSION` are untouched — which
is the property that lets this run beside the two lanes holding the bump
slot.

**Q#W-7 — a pre-existing defect, repaired here, and NOT one anybody has
observed.** `Handle:await()` refuses inside `pmacs.window.commit_to`
precisely so a coroutine cannot park with the frontend scope pushed
(Journey Stage 1a, Q#JR14b). But `pmacs.async.yield_to_next_tick()` also
yields, is public, and carried no such refusal — so that invariant had a
second entrance, and a coroutine could produce exactly the misrouting the
`await` guard exists to prevent. It gains both refusals here: the same
supported yield helper, the same invariant, the same edit family, so
splitting it would have preserved a known hole without reducing
integration risk.

**Reachability by a real caller is UNPROVEN.** This was found by reading
the guard family while scouting rule 1, not by reproducing a fault. No
production caller is known to yield through that door inside a commit,
and the test pins the guard rather than reproducing a user-visible bug.
Nobody should later cite this commit as evidence the bug was observed in
the wild. Its witness is a PAIR, like rule 1's: the refusal fires **and**
the commit scope is restored afterwards — a guard that raises while
leaving the scope pushed converts a silent fault into a loud one and
fixes neither.

`journey_acceptance` carries the established `commit_to` pins —
forged-destination refusal, scope-and-restore on normal return and on
raise, the await refusal, delivery to the requesting frontend. It passes
**untouched**, which is what says this closed a gap in Journey Stage 1a's
semantics rather than altering them.

What is deliberately NOT here, and why it is worth saying:

- **No `owner`, in any spelling** — not `origin`, not `subsystem` (§3).
  Populated from static per-subsystem constants it would be an origin,
  not an owner, and would confidently misattribute third-party work to a
  builtin at exactly the point §9 wants attribution. A field that asserts
  a falsehood is worse than an absent one. The slot stays empty until P3
  can fill it with a real package signal.
- **No `parent`** (Q#W-5). An unpopulated field renders as `None`
  everywhere and reads as "this job has no parent" rather than "this
  system does not track parents". Stage 3 builds the lifetime model and
  the field together.

Consequences worth recording:

- `ProcessSpec::new` takes a third argument. The 40-odd call sites are
  almost all tests; the three production ones (LSP, MCP, terminal) supply
  real descriptions. `pmacs.process.spawn`'s Lua surface keeps `purpose`
  OPTIONAL, falling back to the label — requiring it there would break
  every existing caller for no coverage the compiler is not already
  providing, and a caller's own label is not a fabrication.
- `pmacs.process.list` gains a `purpose` KEY on each row and enumerates
  exactly the same processes (Q#W-4). Terminal PTYs stay hidden: three
  acceptance suites use `#pmacs.process.list()` as a leak baseline, and
  widening the accessor would inflate all three. Stage 2's unified view
  owns that decision.
- `statusline_segments_acceptance`'s builtin-provider inventory grows to
  `["activity", "mode", "terminal", "lsp"]`. That assertion exists to
  grow when a builtin provider is added.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016bqGA6s9tTUFzYpbeW3tai
2026-08-10 14:51:54 +02:00
Levi Neuwirth 8cd1da41ac
test: the report itself, at a real PTY — and §1.1 was wrong
Closes Stage 3's remaining obligations.

THE PTY TEST. Every other test in this lane checks a mechanism.
tests/long_line_readable_acceptance.rs checks the complaint: the
shipped binary, a real 80x24 PTY, one source line 200 columns wide,
and an assertion that its tail marker reaches the host. It bites —
`scripts/bite HEAD~2 src/editor.rs --test long_line_readable_acceptance`
against the pre-aa3cd4d editor never paints TAILZQX in 20s.

Its truncate control (an isolated init.lua pinning the mode) is what
makes that marker discriminating, and it is also the honest statement
of what truncate costs today: those bytes are not off-screen, they are
unreachable until Stage 4.

What it does not prove: the workspace has no screen model and no
vt100/termwiz/vte, so this shows the tail was WRITTEN to the terminal,
not which row a human would point at. That is nonetheless the whole of
the report — under truncation the bytes are never emitted at all.

§1.1 WAS WRONG, FOR NINETEEN REVISIONS. `editing.fill-column` is not
an orphaned registry setting "of the exact shape Stage 1 just fixed".
Both cited occurrences are inside `#[cfg(test)] mod tests` — fixture
names in round-trip tests covering one setting per ConfigKind. Two of
those five names are real; three, including this one, are defined
nowhere else in the tree. There is no shipped setting, so the Q#LL4
deliverable "sharpen its description" had no object.

The mechanism is worth more than the correction. A grep hit at a src/
path, a genuine `r.define(...)` call that is real API usage rather
than a mock, and `#[cfg(test)]` about fifty lines above the citation.
Every later revision inherited the conclusion instead of the evidence,
and three review rounds reasoned about the consequences of an orphaned
setting rather than re-checking that it existed. A file:line citation
is not a substitute for reading the scope it sits in.

Had it gone unchecked into implementation, Stage 3 would have shipped
an edit to a unit-test fixture believing it was rewording a
user-visible setting — a no-op with a misleading commit message.

§1.1 is withdrawn in place, keeping the original text and the
reasoning that produced it; §6's answer is unchanged (a setting that
does not exist is a stronger reason not to adopt it) and its premise
corrected. Both fixture sites now say they are fixtures. The approval
is not reopened: nothing else in the document rested on §1.1, which
argued for a display setting separate from fill-column — which is what
shipped.

AND ONE UNCLASSIFIABLE RED, logged as U1 in ci-red-signatures.md. A
`-p pmacs-gpu` run went 227/1 once; every run since is 228/0. The
failing test name was NOT captured, because I piped that command
through `tail -3` and discarded the failure block above the summary.
36 later runs are clean, 6 under deliberate concurrent load — which
per the rerun rule establishes intermittence only, and without a
selector not even that. Deliberately NOT matched against A1 despite
A1 also being GPU-headless-under-load: matching requires an exact
selector and every required fragment, and calling a shapeless red
"probably the known one" is the reputation-by-adjacency that file
exists to deny.

Gates: fmt; clippy --workspace --all-targets -D warnings; --lib
1917/0; --lib --features crdt 2102/0; line_wrap 6/0;
long_line_readable 2/0; folding 21/0; folding_stage2 48/0;
full_grid_resync 1/0; config_registry 16/0; m4 150/0;
PMACS_REQUIRE_GPU=1 -p pmacs-gpu 228/0 (see U1); git diff --check.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016bqGA6s9tTUFzYpbeW3tai
2026-08-07 19:37:46 +02:00
Levi Neuwirth d8cf809b97
feat: ui.line-wrap, resolved once and told to both frontends
The setting exists now, and both frontends honor it. This is the commit
that turns the stage on: the grid renderer, the coordinate mapping, and
the GPU were all built and tested against a mode nothing could set.

ui.line-wrap is buffer-local, an enum of wrap and truncate, defaulting
to wrap. A closed set rather than a string, so an unknown value is
impossible rather than handled --- and so adding "word" later is
additive. It lives in ui., not editing.: editing.* is buffer-editing
behavior, this changes only how text is SHOWN, and the two existing
ui.* settings carry a gpu- prefix to mark frontend-specific ones, so
the absence of a prefix is what says "both frontends".

Resolved exactly once. The render loop reads it per window per frame
and records it on the window; the viewport is built FROM that, and
Window::layout_ctx hands the same answer to all twenty coordinate call
sites. Nothing re-resolves, so two callers cannot disagree about one
buffer. The earlier write-back from viewport to window is removed as
circular now that the resolution precedes the viewport.

Semantic frontends are told over LineWrapFacts, gated at v22 in the
producer and again in the daemon write loop. The dedup key is the
(buffer, wrap) PAIR, and that is the whole design rather than a
micro-optimisation: font size is global, so caching it by value is
right, but wrap mode is buffer-local, so a value-keyed cache stays
silent when the user switches from a truncating buffer to a wrapping
one --- a real mode change with no config event behind it.
a_buffer_switch_re_emits_the_wrap_mode pins that, and it bites: keying
the cache on the mode alone fails it while every other test still
passes, which is exactly how the bug would have shipped.

Two existing tests moved, and both moved for the right reason rather
than because they were stale. The semantic allowlist gains the variant,
and the first-frame count goes 7 to 8 --- the second is really an
assertion that the attach trigger works: a semantic frontend that is
not told on its first frame never learns the setting at all.

Also ships ui.toggle-line-wrap, and its status line says the quiet part
--- turning wrapping off makes text past the right edge unreachable
until horizontal scrolling lands in Stage 4. That belongs where a user
sees it, not only in the framing.

Gates: fmt, workspace clippy -D warnings, diff --check, --lib 1916/0,
crdt 2101/0, pmacs-gpu 224/0, tab_width 2/0, folding 21/0, gui_zoom
15/15, full_grid_resync 1/1.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016bqGA6s9tTUFzYpbeW3tai
2026-08-07 18:02:21 +02:00
Levi Neuwirth c0eb16bd12
feat(panel): flip the adopter default — Arc 7's last step
Stage 3 steps 3 and 4. Omitting `display` now resolves to the PANEL for
listview, compile and terminal; dired keeps `"current"`, passed
explicitly to the shared resolver. Per-adopter `select` per Q#BP12:
listview true, compile false (passive output must not steal document
focus), terminal true.

The census predicted 37 failures across 5 suites and the flip produced
exactly that — same suites, same per-suite counts. The measurement was a
prediction, not an estimate, which is what the inverted step order was
for. Final sweep: 3449 passed / 0 failed against a 3447 baseline, the
+2 being new pins.

THE CENSUS COUNTED FAILURES, NOT CAUSES. Thirteen listview failures had
ONE root cause: a panel is derived-hidden while frame geometry is
unknown, and listview_acceptance never declared any — it never needed to
while listview defaulted to the current window. One helper took it from
13 to 2. The same applied to m4 and vterm_stage2. Geometry is
authoritative state and a grid frontend's real frame size IS its
declaration; the panel suites have always said so.

THREE DEFECTS THE FLIP EXPOSED, each fixed rather than tested around:

1. The OUTLINE panel's `on_visit` used `pmacs.window.switch_buffer` —
   the RAW switch, which replaces the buffer in the ACTIVE window. That
   was harmless while the outline opened into a document window. Once
   the panel became the default the active window WAS the outline panel,
   so RET clobbered the panel with the source and left nothing for `M-,`
   to return to. The references panel was migrated to `display_file`
   when the arc landed; the outline was missed because nothing exercised
   it from a panel until now. Q#BP11c names this exact corruption, and
   both the outline and compile tests now assert `M-,` FOCUSES the
   panel rather than cloning its buffer into the document — an
   assertion the previous one could not distinguish.

2. `pmacs.compile._last` stored only `{cmdline, cwd}`, so a recompile
   reached `start_run` with no `display` and took the new default. A
   user who ran `compile.run{display="current"}` would be moved into a
   panel the moment they pressed `g`. An opt-out that reverts on the
   next recompile is not an opt-out; `display` is stored and replayed,
   with nil kept as nil so an omitted value still resolves to the
   default rather than freezing at the first run's resolution.

3. `opts.display` on a nil `opts` — my own regression, introduced by
   fix 2 and caught by `journey_acceptance`, which is exactly what that
   ratchet is for.

COMPILE'S CHORDS ARE NOW PANEL-LOCAL, and that is a contract rather than
an accidental reachability loss. Every compile chord is bound
`scope = "buffer"`, so with `select = false` none dispatch from the
document — `C-c C-k` included. `acc34` pins it, and pins that
`M-x compile.kill` still reaches the running slot from anywhere via its
`or compile_slot()` fallback. A global chord is a command-surface
decision and belongs in its own framing.

TEST CLASSIFICATION WAS PER TEST, NOT PER SUITE. Two neighbouring
compile tests land on opposite sides: acc15 (RET-visits-error,
jump-back) asserts the NEW default, while acc16 (n/p within compile
output) genuinely needs the buffer selected and says so. compile's
suite-wide helper opts out because ITS subject is compile-BUFFER
behaviour; the placement-subject tests use a second helper that takes
the default. Every opt-out states why. Nothing was mass-added to make a
suite green.

s1_12's two concerns are split as directed: it keeps its Q#GB18
name-keyed-identity bite with explicit `display = "current"`, isolating
the buffer-level `p.prev` skip rule, while a new `s3_1` pins the
side-window presentation chain — C → B → A → delete, ending at the
document with the wrapper collapsed. The mechanisms are complementary:
presentation history chains in the side slot; `p.prev` prevents
raw-switch and capability-fallback loops.

Verified: fmt, diff-check, clippy with and without crdt, --lib 1896,
--lib --features crdt 2081, pmacs-protocol 19, m4 149, required GPU 221,
and the full serialized sweep at 3449/0.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-03 11:10:14 -04:00
Levi Neuwirth 41d37fcbcb
refactor(panel): one shared rule for the adopter `display` vocabulary
Stage 3 step 2 (Q#S3-1). DEFAULT-PRESERVING WITH ONE INTENTIONAL
NORMALIZATION — not "behaviour-preserving", which would be too broad a
claim. Every adopter keeps its current default, and the full serialized
suite is 3447 passed / 0 failed with ZERO suites differing from the
pre-change baseline. But invalid-input behaviour DID move, deliberately,
and that is pinned rather than asserted in prose.

Before this, FOUR adopters validated the same three-value vocabulary in
four places: Rust for the terminal, and hand-written Lua copies in
listview.lua, compile.lua and dired.lua, each carrying its own copy of
the error string. `parse_adopter_placement` read like the shared parser
its doc comment implied but had exactly one caller. Four copies of one
rule is how the next adopter gets it subtly wrong, and the next adopter
is DAP.

`resolve_adopter_display(operation, raw, default)` now owns exactly
three things: the vocabulary, the error text, and the default policy.
Reachable from Lua as the internal seam `pmacs.window._resolve_display`.

THE DEFAULT IS A PARAMETER, NOT A CONSTANT, and that is load-bearing
rather than stylistic. listview/compile/terminal will resolve omission
to the panel in step 3; DIRED MUST NOT, because
`pmacs.path.set_directory_handler` calls it with `{ dest = dest }` and
no `display` key at all — a flipped default would open `pmacs .` in a
bottom panel. Passing the default in makes dired's exemption visible at
its call site instead of hidden in a divergent copy.

TERMINAL'S `window` MUTUAL-EXCLUSION STAYS IN ITS OWN WRAPPER. Only the
terminal accepts a `window` id and only it must reject `window` combined
with `display = "panel"`. A helper pretending the four parsers were
identical would be its own defect.

THE NORMALIZATION, DECIDED AND PINNED. Terminal read
`get::<Option<String>>("display")?`, so a non-string value raised mlua's
TYPE error before reaching any custom message, while the Lua copies
stringified it into their own. Nothing pinned either behaviour — every
existing assertion passes an unknown STRING, which takes the same path
under both designs and therefore could not have caught a regression
here. The custom error wins because it names the legal vocabulary; the
value is rendered by TYPE ALONE (`unknown display (integer)`) so the
message cannot imply a string was passed.

Pinned at the terminal entry point in acc19 — the one adopter whose
behaviour changed — asserting the shared error AND that nothing is
created. The type SPELLING is deliberately not pinned: Lua 5.4 says
`integer` where LuaJIT has no integer subtype, so asserting either
literal would pass on one CI flavor and fail on the other. Verified
46/46 under both.

COMPILE NEEDED AN EXPLICIT OMISSION CAPTURE, and finding that out is
what this step is for. The resolver collapses omission into its default,
but compile's recompile gate distinguishes them: it fires on OMISSION
only, never on an explicit `display = "current"`, which is the
documented opt-out and must reach the raw switch even when the previous
run was panel-placed. Resolving first and testing `== "current"`
afterwards would have silently merged the two and broken the opt-out
with every test still green. `display_omitted` is captured before the
resolver call and the gate keys on it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-01 20:25:27 -04:00
Levi Neuwirth 84b1620e7e
feat(release): binaries on tag — Distribution Stage 1
.github/workflows/ had exactly one workflow and it was test-only: no
release job, no artifact upload, no tags-to-binaries path. Installing
pmacs meant `git clone` plus knowing the feature-flag matrix.
COHERENCE.md §17 grades this "missing — zero release machinery exists";
this moves it to Partial and completes journey step 1.

Scope is one stage: binaries when a `v*` tag is pushed, attached to a
GitHub Release. Channels, rollback, update-in-place, signing, RHEL 9 and
Intel macOS are out of scope and named in the framing's §5.

WHAT SHIPS: pmacs and pmacs-gpu, both at 1.1.0, CRDT-enabled, co-located
in one archive, with SHA256SUMS. pmacs-protocol stays at 1.0.0 — it is
the wire crate and versions on its own schedule.

THE VERSION BUMP EXPOSED A REAL DEFECT, and it is the reason this PR
touches src/ at all. `InstanceIdentity::for_running_process` is defined
in pmacs-protocol and expanded `env!("CARGO_PKG_VERSION")` THERE. `env!`
expands in the crate being compiled, so the field documented as "Pmacs
version string" carried the PROTOCOL crate's version. That identity
reaches Lua as `pmacs.instance.identity()` and goes on the wire in
`Hello`, so a 1.1.0 release would have told every attached frontend it
was 1.0.0.

Nothing could have caught it earlier. Three tests assert
`id.pmacs_version == env!("CARGO_PKG_VERSION")` evaluated in the pmacs
crate — the correct assertion — but while both crates read 1.0.0 they
compared the same number reached by two different paths and COULD NOT
FAIL. Deciding to hold pmacs-protocol at 1.0.0 while moving pmacs is
what made them discriminating; all three failed on the bump. The version
is now a parameter so `env!` expands in the caller's crate. A test can
be correct and still prove nothing when the two things it compares are
equal for a reason unrelated to the code under test.

TWO LAYERS OF BINARY EXCLUSION, and layer 2 is load-bearing —
demonstrated, not argued. Cargo auto-discovers src/bin/*.rs, so a
release build can produce five binaries and three must never ship
(pmacs-audit is a contributor tool; pmacs_fake_lsp and pmacs_fake_mcp
are test fixtures). Layer 1 names explicit --bin targets. Layer 2 stages
an explicit asset list, and building this branch produced exactly the
case it guards: after building ONLY --bin pmacs and -p pmacs-gpu,
target/release still held all three forbidden binaries, left by an
earlier `cargo test --release`. Swatinem/rust-cache restores that kind
of directory in CI. An implementation trusting layer 1 and archiving the
directory would have published a fake language server in the first
release.

The three archive assertions are bite-verified: a smuggled
pmacs_fake_lsp, a missing pmacs-gpu, and a cleared executable bit are
each caught, with the honest archive passing.

THE GLIBC FLOOR IS ASSERTED, NOT TRUSTED. Pinning ubuntu-22.04 sets the
floor at 2.35 (Ubuntu 22.04, Debian 12 — NOT RHEL 9 at 2.34, which needs
a container or cross-build and is parked). But a pinned runner proves
nothing about the artifact, and the failure surfaces as a bare
`GLIBC_2.39 not found` on a user's machine with no clue which commit
caused it. The build reads versioned-symbol requirements out of the
binary and fails above the floor, so switching to ubuntu-latest fails in
CI instead of shipping. Bite-verified both directions on a glibc 2.44
host. Both runners are pinned; macos-latest would drift the minimum
supported macOS with no commit to point at.

Preflight runs before any build: the tag must match the root crate
version (stripping a prerelease suffix, so v1.1.0-rc.1 and v1.1.0 both
match 1.1.0), and the tagged commit must be an ancestor of main. Both
catch mistakes that are cheap now and expensive once a public URL
exists. The suite is not re-run — CI already tested the commit — but
nothing otherwise enforced that a tag points at a tested one.

Verified: fmt, diff-check, clippy with and without crdt, --lib 1896,
--lib --features crdt 2081, pmacs-protocol 19, m4 149, required GPU 221,
and the full serialized crdt sweep at 3,715 passed / 0 failed / 30
ignored — identical to the pre-change baseline, so the protocol
signature change broke nothing. Archive staging, contents, executable
bits and both --version outputs were exercised against a real release
build locally.

No release is cut by this PR. Per the framing's §7 the RC is tagged
after merge, from the merge SHA.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-01 14:40:47 -04:00
Levi Neuwirth 12e2cff466 merge: integrate main @ c14f2de (PRs #197, #196) into the Stage 1 lane
`docs/active-work.md` was the only conflicting file. #196 added the dired
Stage 2a lane at the position this branch had used to relabel the #188
framing lane header; the resolution keeps both, changing neither side's
wording.

`src/editor_core.rs` auto-merged. Both lanes touch it, so a clean
textual merge is not evidence of a clean semantic one — the gate suite
is re-run in full on the merged tree rather than inherited from the
pre-merge head.

Resolution verified for line loss in both directions: the resolved file
differs from `main` only by this branch's own authored edits, and
differs from this branch only by additions taken from `main`.
2026-07-30 10:13:37 -04:00
Levi Neuwirth 44135fcd73 fix(stage2a): close review round 1 — four unreported failures
All four findings were the same shape: a failure that left state wrong
and told nobody.

**Delete refusals reach the user.** `reconcile_delete_and_fire` returned
`kept_modified` and `refused` and both production callers discarded
them, so a last-buffer refusal or the asynchronous modified-buffer race
left the file gone and the buffer still bound to it — and the next
`C-x C-s` recreates the deleted file. Reporting now happens inside the
shared seam, not at its call sites, for the same reason the
reconciliation does: a caller that has to remember to report is a caller
that will forget. The message names the buffers (capped, with a count
for the rest) and states the consequence, and it is written to
`EditorCore::status`, not `pmacs.error` — that channel is defined only
by a test stub, so a report there would be the same silence.
`reconcile_delete` now prefixes `kill_buffer`'s reason with the buffer
name, because "cannot kill the last remaining buffer" does not say which
buffer is now bound to a deleted path.

**The LSP subscribers stop swallowing their own failures.** Ignored
`pcall`s around `did_close`, `forget_uri`, `did_open` and overlay
re-rooting made the callback return successfully, so the
`all-must-succeed` logger had nothing to log — concretely, a stale server
made `forget_uri` raise while the callback carried on with the old
stores, routes and `documents` entry all live. A shared failure sink
attributes each step, reports on both channels, and raises **after** the
loop, so one unreachable server cannot leave every other attachment
unreconciled.

**`forget_uri` abandons requests through the established path.** It
purged `pending_routes` and `pending_external` but not the same ids
`send_request` put in `LspClient.pending`, and recorded nothing in
`cancelled_rids`. The per-rid work is extracted from
`drain_cancelled_externals` as `abandon_request` and reused, rather than
a second incomplete copy: route, client pending, cancelled record and
`$/cancelRequest` now happen together.

**Acceptance 35 is pinned.** With a plain delete the forbidden fallback
was unobservable — `find_or_open` raises out of `load_file` and the
`pcall` swallows it — so both assertions passed with the fallback
present. The plan now deletes the origin's file and recreates it, which
gives the fallback something to open and makes "restores nothing"
falsifiable. The corrected G1 explanation also reaches the production
comments, which still repeated the false `resolve_target_buffer::NotFound`
story.

New pins: acceptance 53 and 53b assert the status channel; a stale-server
row asserts attribution on both channels *and* that the healthy
attachment still reconciles; an `lsp.rs` unit test asserts the client-side
abandonment with an unrelated request as its control.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lv428Fth9LRtffwJSsqH7T
2026-07-29 21:28:16 -04:00
Levi Neuwirth edfb52f29c test(stage2a): make three bites bite, and correct one framing claim
Running the bites found three that did not falsify anything.

Item 28's rename row cannot pin the walk's containment rule:
`reconcile_rename` calls `Path::strip_prefix` to rebuild a descendant's
tail, and that is component-aware too, so a string-prefix walk is
silently corrected a second time. Deletion has no such second guard —
the walk's verdict IS the kill list — so the row moves there, and a
string prefix now provably destroys a buffer on `foobar.txt` when
`foo/` is deleted.

Item 30's composition-order assertion was a tautology: the LSP attach
leaves `diagnostic` LAST in the stack, and moving the last element to
the end is a no-op, so a remove-and-re-push was indistinguishable from
an in-place mutation. The row now pushes one more overlay after it and
asserts that precondition explicitly.

Item 34 needed both a restructure and a correction. §5's G1 says a
stale captured path "materializes a phantom" via
`resolve_target_buffer`'s `NotFound` arm.
It does not: `pmacs.buffer.find_or_open` calls `file_io::load_file`
directly and maps the error, so a missing path RAISES, and the
`NotFound` arm belongs to `resolve_target_buffer`, which serves
`pmacs.window.display_file` and the startup target rather than this
binding. The real defect is smaller and still real — the `pcall`
swallows the raise and the user is stranded wherever the last applied
op left them — so the plan now edits another file first, which is what
makes the restore observable at all. The correction is recorded at the
test.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lv428Fth9LRtffwJSsqH7T
2026-07-29 18:51:41 -04:00
Levi Neuwirth f294942ef5 wip(stage2a): the reconciliation transaction and the URI teardown
One shared walk query (`buffers_bound_under`), lifted out of #190's
`delete_verdict` so the guard and both reconciliation seams cannot
disagree about which buffers an operation touches: every buffer, both
sides normalized, component-aware containment.

`EditorCore::reconcile_rename` moves the stored path and — only for a
`PathDerived` name — the buffer name. `EditorCore::reconcile_delete`
composes the same two removal phases `pmacs.buffer.kill` composes,
preflighting `editing_in_progress` because a `ConcurrentEdit` refusal
arrives after `kill_buffer` has already moved windows. Phase 2 stays
with the caller; `EditorCore` gains no Lua handle.

`AsyncRuntime::tick` now returns a `TickOutcome` carrying the settled
ids plus the successful resource mutations, in bus-arrival order, which
is documented as not being execution order. `PendingJob.resource`
retains the paths the dispatchers move into the worker closure.

`LspManager::forget_uri` purges the routes carrying a URI, drains the
awaiters joined to them on the rid, and clears all fourteen stores plus
`documents`. A generation-scoped exact-pair tombstone gates the two
uncorrelated writers that can otherwise resurrect what it cleared:
`publishDiagnostics` and `mark_document_stale`, which now takes a
server id. `ResponseRoute::scoped_uri` is the one variant list, with
`uri()` delegating to it.

New Lua surface: `pmacs.buffer.set_name`, `pmacs.lsp.forget_uri`,
`pmacs.diag._rename_resource`.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lv428Fth9LRtffwJSsqH7T
2026-07-29 18:01:45 -04:00
Levi Neuwirth 4f6135263b wip(stage2a): name provenance plus the View rename hook
`BufferNameOrigin` records where a buffer's name came from instead of
inferring it from the string: a path-backed buffer's name is the path
*as given*, so a relative open is named `foo.rs` while its stored path
is absolute, and a user may legitimately choose a name that normalizes
to its own file's path. Rename reconciliation asks the bit.

Every path-backed creation site is audited onto the new
`set_path_derived_name` door: `EditorCore::get_or_load_buffer`, the
`NotFound` arm of `resolve_target_buffer`, `pmacs.buffer.from_file`,
and `pmacs.buffer.find_or_open`. Ordinary `Buffer::set_name` records
`Explicit`.

`View::rename_resource` is the seam that re-roots a URI-keyed overlay
in place, so it keeps its position in the window's composition order;
`DiagnosticView` overrides it, whose `uri` is private and set once at
construction.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lv428Fth9LRtffwJSsqH7T
2026-07-29 17:38:21 -04:00
Levi Neuwirth 7350cfdd8a merge: integrate main @ e003b81 (PR #190) into the Stage 1 lane
One conflict, `docs/active-work.md`, with three strands rather than the
usual one: main gained #190's lane, this branch carries its own Stage 1
lane and a relabel of the #188 framing lane, and main had removed the
documentation lane while this branch still had it.

Resolved by construction. Main's file taken whole; this branch's Stage
1 lane reinserted at its own position ahead of the bottom-panel lane;
this branch's relabelled framing lane ("MERGED AS PR #188") kept in
place of main's stale "OPEN, PROPOSED" version; main's removal of the
documentation lane preserved.

Verified against both parents rather than by inspection: the Stage 1
block is byte-identical to this branch's, the documentation lane is
gone, no conflict markers survive, and the update-protocol rule 6 seam
check finds no double blanks.

Note for whoever absorbs next: main now carries three lanes describing
merged PRs (#190, #188, #194). This merge keeps this branch's more
accurate labelling of the #188 one but does not remove any of them ---
rule 4 permits removal only once durable facts reach
`docs/agent-handoff.md`, and none of those three PRs touched it.
2026-07-29 15:12:13 -04:00
Levi Neuwirth 6b21e93e93 fix(lsp): close review round 1 on the resource-op delete guard
Four findings, all reproduced by the reviewer, all accepted. Two of
them are one defect class — a guard whose scope was REASONED ABOUT
rather than enumerated — so both are recorded in the framing's new §9
together with a sweep of every other place this lane decides something
is "affected".

P1 — the delete preflight broke ordered resource operations
(§9.3). Every delete was judged against the filesystem's INITIAL
state, at plan-construction time, so a valid `create X -> delete X`
was refused with a fabricated NotFound about a path the batch was
about to create; likewise `rename A -> B -> delete B`. This was a
regression this lane introduced, not a pre-existing defect.

Decision: DEFER, do not simulate. A delete whose target is related by
component-aware path containment to a path an EARLIER op in the same
plan creates, renames onto, renames away from, or removes is not
judged at plan time; the primitive judges it when it runs. Q#RD3
already calls this check a filter, not a transaction, so declining to
judge is inside its contract and refusing a legal batch is not.
Simulating instead would mean modelling filesystem presence AND the
registry's path bindings across create/rename/edit — the transaction
Q#RD3 declines to build — and a wrong simulation emits false `clear`
verdicts, which is the dangerous direction. `edit` ops are excluded
from the deferral set on purpose: an edit changes no path's existence,
so it can only turn a plan-time `clear` into a primitive-time
refusal, which Q#RD3 already documents and accepts. The
buffer-and-filesystem half therefore still fires early for any target
no prior op touches, which is what criterion 11c pins.

P1 — the production-boundary acceptances are landed (§9.5).
Criteria 11, 11a-11d, 12 (both directions), 13 and 15 now drive a real
`pmacs_fake_lsp` child over a real transport. One parameterized mode,
`applyeditplan`, replaces the eight the framing named: it reads its
whole WorkspaceEdit from a test-written file and publishes the
client's response to a sink, so each of the eight fixtures sits next
to the assertions that depend on it instead of being mirrored across
two files. Fail-closed — an unreadable plan sends no applyEdit and
reports itself through the sink, so a broken fixture cannot read as a
pass — and the sink is written `.part`-then-rename so a polling reader
never sees a partial record. There is no skip-and-return-ok arm
anywhere: `fake_lsp_path` resolves through `env!("CARGO_BIN_EXE_...")`,
a compile-time constant, so a missing binary is a build failure.

P1 — mid-batch failures were misreported as complete aborts (§9.4).
`apply_workspace_edit` now returns `nil, message, applied_op_count`,
and ONE renderer serves both the user-facing status line and the
server's `failureReason`, so the two cannot disagree. All three
callers are updated, not only the rename one.

P2 — non-recursive deletes inspected descendants (§9.2). `recursive`
is now a parameter of the shared query and descendant matching is
reserved for recursive deletes. The old doc comment argued at length
for the wrong behaviour and is replaced by the counterexample that
falsifies it: a modified buffer at `tree/gone.rs` whose file is
already gone blocked a non-recursive delete of the now-EMPTY `tree/`,
an op that would have succeeded and that removes none of that
buffer's contents. This narrows the Q#RD6 query #171 adopts.

Criterion 3's stated bite: fixed by fixing the SETUP, not the doc.
The first commit's test comment carried a correction saying the
framing's wording was wrong. It was wrong only against that setup —
and §9.2's narrowing would then have left the setup with no bite at
all, since a non-recursive delete no longer inspects a descendant.
So the buffer is now bound to the EXACT deleted path: a file is
opened, then replaced on disk by a non-empty directory, and
`remove_dir` fails with ENOTEMPTY deterministically under any uid.
Both of the framing's stated pre-images now bite, so the framing
needed no amendment there. The correction is recorded in §9.1 rather
than only in a test comment, which is where the review asked for it.

WHY THE SHIPPED SUITE PASSED WHILE FINDINGS 1 AND 4 WERE LIVE — two
coverage facts for the next lane. Every delete criterion drove the
PRIMITIVE directly, so nothing in the suite ever built a multi-op plan
and the preflight's plan-time behaviour had no test at all; the only
batch test, `m4_15`, happens to delete a path no earlier op touches.
And every recursive-delete criterion (7, 8, 9) passes `recursive =
true`, while every non-recursive one binds its buffer to the exact
target, so no test in the suite ever combined a non-recursive delete
with a descendant buffer — the exact cell finding 4 lives in.

Sweep, per the review's request. Seven sites decide something is
"affected"; the table is in framing §9.7. Three were the defects
above. Two are unchanged by design and named so they are not mistaken
for oversights: phase-4 reconciliation compares paths RAW via
`BufferRegistry::find_by_path`, which Q#RD10 pins as "exactly today's
behaviour" and which correcting would widen reconciliation — the one
thing Q#RD5 forbids; and `delete_verdict` stats the raw path while
comparing normalized ones, a latent inconsistency whose every branch
fails safe and which matches the primitive's own `remove_file`. Two
are consistent: the `_delete_verdict` binding defaults `recursive` and
`ignore_if_not_exists` the same way the primitive does, and the
deferral set is enumerated (create: 1 path; rename: 2; delete: 1;
edit: excluded, with the argument written down) rather than reasoned
about. Nothing else in the lane decides an affected set.

Bites. Every row was RUN, with the positive control `scripts/bite`
gained in #192 (merged into this lane), and every ref-based row below
reports `OK (assertion)` rather than `OK (COMPILE)`. `1873be6` is this
lane's own first commit: findings 1, 3 and 4 were introduced by it, so
`main` cannot falsify their pins.

  rd11a builtin/runtime/lsp.lua @ main      OK (assertion)
  rd11b builtin/runtime/lsp.lua @ main      OK (assertion)
  rd11c builtin/runtime/lsp.lua @ main      OK (assertion)
  rd11d builtin/runtime/lsp.lua @ main      OK (assertion)
  rd12a builtin/runtime/lsp.lua @ main      OK (assertion)
  rd12b builtin/runtime/lsp.lua @ main      OK (assertion)
  rd13  builtin/runtime/lsp.lua @ main      OK (assertion)
  rd15  builtin/runtime/lsp.lua @ main      OK (assertion)
  rd18  src/lua_bindings/mod.rs  @ 1873be6  OK (assertion)
  rd19a builtin/runtime/lsp.lua @ 1873be6   OK (assertion)
  rd19b builtin/runtime/lsp.lua @ 1873be6   OK (assertion)
  rd19c builtin/runtime/lsp.lua @ 1873be6   OK (assertion)
  rd20  builtin/runtime/lsp.lua @ 1873be6   OK (assertion)

Two rows need their weakness stated rather than hidden.

rd11 is VACUOUS against `main`'s `lsp.lua` and the script says so — a
preflight-less applier passes it, which is expected, because rd11 is
the direction that asserts the guard does NOT over-refuse (the same
shape as criteria 2, 7, 9 and 14). It bites two other ways, both run:
`OK (assertion)` against `main`'s `src/lua_bindings/mod.rs`, where the
primitive's absent-plus-ignore branch destroys the buffer; and against
a hand mutation dropping `ignore_if_not_exists` from the preflight
call, which is the pre-image the framing actually names for it.

rd3's two pre-images are designs never committed, so no ref carries
them and `scripts/bite` cannot be used. Hand-mutated instead:
reconciliation moved ahead of the filesystem mutation makes rd3 fail
on exactly its stated assertion (and rd4 with it). On this setup that
mutation and "validation that removes rather than inspects" are the
same mutation, because the buffer is bound to the exact deleted path —
stated because the first shipped setup could see neither.

The eight rows against `main`'s `lsp.lua` all fail by TIMEOUT rather
than by a value assertion, and that is the pre-image behaviour, not a
flaky harness: on `main` the primitive's raise escapes the applier,
escapes `handle_server_requests`, is swallowed by the
`pcall(handle_server_requests)` at the bottom of the file, and the
server is never answered at all. The sink is therefore never written.
That unanswered request is the defect criterion 13 exists to pin.

Gates: fmt; clippy -D warnings; --lib 1863; --lib --features crdt
2048; m4_acceptance 146 (was 132); lsp_dispatch_seams_acceptance 15;
dired_acceptance 25 and autosave_acceptance 29 (the framing's watch
items); PMACS_REQUIRE_GPU=1 -p pmacs-gpu 202; git diff --check clean.

No protocol change.
2026-07-29 11:45:43 -04:00
Levi Neuwirth e1b859fd4f feat(generated-buffers): dired and listview adopt the authorized write
Stage 1 of generated-buffer immutability
(docs/generated-buffer-immutability-framing.md, revision 5). Closes the
two families the bug is reachable on WITHOUT `M-x`: `compile.lua` and the
search panel rebind all seven undo chords to a no-op, but `dired.lua` and
`listview.lua` rebind nothing, so a bare `C-/` emptied a listing and a
panel. The cheap half is also the exposed half.

An intercept is not read-only. `Buffer::undo` reaches the rope through
`ensure_writable` and never consults the intercept chain, so the
erroring-intercept-plus-`bypass_intercept`-over-a-writable-rope idiom
guarded the edit path and left the history path open. Rebinding chords
does not close it: `M-x buffer.undo` is dispatchable on every buffer in
the tree.

- `dired.lua`'s `paint` and `listview.lua`'s `render` write through
  `pmacs.buffer.set_generated_contents` — lift the lock, whole-buffer
  replace skipping intercepts, discard history, re-assert the lock, fan
  the `Edit` out. Zero `bypass_intercept` writes remain in either file.
- Both keep their named erroring intercept and `set_round_trip_input`.
  The layering at `terminal.lua:351-366` is unchanged: the rope lock
  protects the daemon copy, round-trip input protects a semantic
  frontend's own mirror, and neither substitutes for the other.
- Q#GB13 — `listview.ensure_panel` stops adopting a same-named foreign
  buffer. Ownership is the `panels` table; a collision disambiguates
  `<2>`..`<99>` and raises at the limit, matching `dired.lua:476-504`.
  This is a prerequisite of the lock, not a follow-up: the arc removes
  the `M-x buffer.undo` that was the only recovery from a clobber.
- Q#GB18 — `panels` becomes a compacting list keyed by identity. It was
  written under the requested name and read back under the actual name,
  which a disambiguated panel breaks: `RET`, `g` and `q` fail closed and
  silently, and `listview.open`'s capture guard fails OPEN, capturing a
  panel as its own `q` target — the chained-panel loop its comment says
  it prevents. Ships in the same commit as the disambiguation by the
  framing's ordering constraint.
- Q#GB6 — `EditorCore::notify_buffer_edit` clamps each window coordinate
  against its own post-edit bound, unconditionally. `cursor` is a byte
  position bounded by `Buffer::len`; `view_top` is a line index bounded
  by `TextView::line_count`, and a replace can grow in bytes while
  collapsing lines, so "the buffer shrank" is not a usable trigger. This
  fixes a shipped defect that reaches terminal copy mode.
- Q#GB16(a) — locking these families disables fold CREATION on them,
  because `document_bytes` is spelled `is_read_only()`. Accepted and
  stated rather than shipped silently; the status string now names the
  read-only lock instead of claiming "not a document buffer".

Acceptance: 10 new criteria in `listview_acceptance` (16 total), 6 in
`dired_acceptance` (31 total), 2 in `terminal_copy_mode_acceptance`.
Every criterion's falsifying mutation was run: 5 bite by revert against
`githubsucks/main`, 9 by a named one-line mutation.

Two framing corrections, both recorded in the tests rather than worked
around silently:

- Stage 1 criterion 5 is unreachable as written. `Buffer::apply_edit`
  (`src/buffer.rs:773`) and `begin_edit` (`:725`) call `ensure_writable`
  as their FIRST statement while the intercept chain runs later inside
  `apply_edit_inner` (`:1072`), so once this arc's lock is installed an
  ordinary edit can never reach the intercept. Restated at the one point
  where the two are distinguishable — the lock lifted — which is the
  state the intercept genuinely still covers.
- Criterion 7 cannot bite at the listview adopter. `listview.refresh`
  and `listview.open` both follow `render` with `window.switch_buffer`,
  which rebuilds the `TextView` from scratch and masks a dropped
  fan-out. `dired.revert` does not, so the dired half carries the bite;
  it fails under the mutation with the reported
  `assertion failed: end <= self.len()`.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lv428Fth9LRtffwJSsqH7T
2026-07-29 09:50:09 -04:00
Levi Neuwirth 1873be6141 feat(lsp): refuse a resource-op delete that would destroy unsaved work
Implements the framing merged as #186. On `main` today,
`pmacs.buffer.apply_resource_op`'s delete arm removes a file and then
removes any buffer bound to it, with no dirty check at any link in the
chain — so a server-driven delete destroys unsaved edits, and the
`ignore_if_not_exists` arm destroys them having done no filesystem work
at all.

Layer 1 — the primitive. The delete arm becomes four ordered phases:
stat/no-op decision, enumerate and validate, mutate the filesystem,
reconcile the registry. Validation inspects and removes nothing, so a
filesystem failure leaves every buffer intact automatically rather than
by compensation, and `on_removed` still observes the path already gone
because reconciliation stays last.

`delete_verdict` is the single shared query. It scans *every*
path-bound buffer rather than the first match, because `find_by_path`
is first-match-only and `pmacs.buffer.from_file` makes duplicates
reachable — a clean first match could otherwise hide a modified second.
It normalizes both sides before comparing and uses component-aware
`starts_with`, so `/tree` does not match `/tree-sibling`. It stats with
`symlink_metadata`, not `canonicalize`, which reports a dangling
symlink as absent and would disagree with the primitive on exactly the
input `ignore_if_not_exists` turns on.

Layer 2 — the applier and the server-request boundary.
`apply_workspace_edit` gains a plan-time delete precondition check
driven by the same Rust helper, so the two layers cannot drift. It is a
filter, not a transaction, and the code says so: `documentChanges` are
sequential, so an earlier edit can dirty a buffer a later op deletes.
The applier is now total — every failure becomes `nil, message`, and
the origin buffer is restored on the failure path as well as the
success path. At the boundary, parse *and* apply are wrapped:
`_parse_workspace_edit` sits one line above the applier and is
fallible, so a parse failure previously escaped, was swallowed by
`pcall(handle_server_requests)`, and left the server unanswered — the
defect being fixed, one line out of scope. Failures now also append one
labelled record to `*errors*`.

Scope, stated plainly rather than implied by what is present:

  * Acceptance criteria 1-10, 14 and 16 land here — 11 tests driving
    the primitive directly. Criteria 11, 11a-11d, 12, 13 and 15 do
    NOT: they exercise Layer 2 through a real server pump and need
    `pmacs_fake_lsp` modes that do not exist yet. Criterion 13
    explicitly rejects a direct-call test as insufficient, so the
    Layer 2 code currently has no production-path pin. That is a real
    gap and the reason this is not the whole lane.

  * The framing's §8 branch plan said the implementation would land on
    #186 itself. #186 merged as framing-only, so it gets its own
    branch and PR. No decision changes.

  * Criterion 3's stated bite in the framing is wrong. It claims to
    fail against buffer-first ordering; it does not, because the
    deleted path is a directory no buffer is bound to, so the
    reordering never fires on that input. It does fail against
    validation that removes rather than inspects. Checked by mutation
    rather than trusted, and the test comment carries the correction.

Bite: criteria 1, 5, 6, 8 and 10 fail against `githubsucks/main` under
`scripts/bite`. Criteria 3 and 4 pin phase ordering against designs
never committed, so `main` cannot falsify them; both were verified by
hand mutation instead. Criteria 2, 7, 9 and 14 assert preserved or
deliberately-unchanged behaviour and pass against `main` by design —
2 is criterion 1's opposite direction, 9 pins today's imperfect
orphaning so widening cannot happen silently.

Gates: fmt; clippy -D warnings; --lib 1863; --lib --features crdt
2048; m4_acceptance 132; lsp_dispatch_seams_acceptance 15;
dired_acceptance 25 and autosave_acceptance 29 (the framing's watch
items); PMACS_REQUIRE_GPU=1 -p pmacs-gpu 202; git diff --check clean.

No protocol change.
2026-07-29 09:47:35 -04:00
Levi Neuwirth d9d1c0b423 test(journey): pin the destination commit, and land the doc updates
Completes Journey Stage 1a: the `commit_to` acceptance suite (framing
§6 N4, N6, N6b, N6c, P1, P2, P3) plus the documentation updates
COHERENCE §25 requires the PR to carry.

Bite-testing the new pins found a real gap. Deleting the
`ScopedFrontend` arm from `acting_frontend` left N4 green, because
`ScopedFrontend::enter` also swaps `core.active_frontend` and the
ambient fallback then answers correctly on its own. The arm is
load-bearing in exactly one case — a commit reached from inside an
interactive command, where the origin sits between the override and the
ambient value — and nothing pinned it. N4b is added, driven through
`dispatch_key` because that is the only thing that establishes an
interactive origin, and the mutation now bites it.

Two smaller corrections found the same way:

* `commit_to`'s forged-destination message was unreachable. Typed as
  `AnyUserData`, mlua rejected a table during argument conversion, so a
  caller got "error converting Lua table to userdata" — true, but naming
  neither the rule nor the remedy. The parameter is now `mlua::Value`
  and the pointed message fires.
* P1 and P2 also fail on full revert, since `commit_to` does not exist
  on the pre-image, so §6.0's "legitimately green on the pre-image" does
  not describe them. They stay in the P list because their
  discriminating falsifier is the named mutation — a revert-only check
  cannot distinguish "validates" from "validates in time" — and each pin
  now says so at its own site rather than being silently mislabelled.

Bite results, each run against the whole suite:

  scope stops swapping `core.active_frontend`  -> N6a, P3 fail; nothing else
  preflight moved after the callback           -> P1, P2 fail; nothing else
  drop the `ScopedFrontend` arm                -> N4b fails; nothing else

Docs: COHERENCE §2 grade + step-3 verdict row, §20 Priority 1 and the
arc list; the GPU initial-target framing's Q#GT6 and acceptance 10,
whose directory case this stage deliberately supersedes; handoff §1;
the active-work ledger; framing rev 7.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-26 17:25:22 -04:00
Levi Neuwirth f09f66ce37 feat(journey): open a directory, on one path
Journey Stage 1a's core: `pmacs .` opens the directory instead of
exiting 1, and local startup stops being a second implementation of
path resolution.

`EditorState::open` now calls `EditorCore::resolve_target_buffer` --
the primitive whose own doc comment says it exists "so two
path-normalization, dedup, and hook transactions cannot drift apart",
and which local startup had never been a caller of.

`resolve_target_buffer` returns a typed `ResolvedTarget` rather than
`(BufferId, HookKind)`, with a `Directory` arm checked ahead of the
load. Without it the load runs and fails: `File::open` succeeds on a
directory and `read_to_end` returns EISDIR, which is not `NotFound`, so
the `[new file]` arm never fired.

A directory creates no buffer. It dispatches a resolver chain: the
short-circuit `path.open-directory` hook, which no builtin subscribes
to, and then `pmacs.path.directory_handler`, which dired defaults. The
split is forced rather than chosen -- hook callbacks only append and
builtins load before init.lua, so a subscribing builtin would always
claim before any user listener could run. A raising listener stops the
chain and suppresses the fallback.

The listing is async and the daemon bootstrap is not, so the whole
post-await commit runs inside a new `pmacs.window.commit_to`: it
validates the destination -- frontend live, window live, buffer
unchanged, window replaceable -- BEFORE invoking its callback, then
scopes the acting frontend for its extent. Validating at display time
would be four dired mutations too late.

That scope is deliberately not `InteractiveCommandOrigin`, which does
not reach the core-ambient APIs and is authenticated user-command
authority a background continuation must not acquire.

The dedication rule is extracted into one `window_accepts_buffer`
shared by exact display, the display probe, and the new preflight, with
`incoming: Option<BufferId>` -- `None` means "the replacement does not
exist yet" and refuses a dedicated window.

`display_file` keeps its directory-is-an-error contract and does not
enter the chain; find-file's accept arm depends on it.

Framing: docs/journey-stage1a-framing.md rev 5 (Q#JR1-JR15).
2026-07-26 16:39:59 -04:00
Levi Neuwirth a0fb01f24c fix(buffer): fan out generated writes, and clear the history that exists
Review round 3, on the round-2 primitive itself. One lesson covers all
three findings: a rope write is only half of an edit, and "discard
history" means whichever history the buffer actually has.

P1 — the binding swallowed the edit. `set_generated_contents` returned
`()`, so nothing reached `notify_buffer_edit_to_windows`. Two
consequences, both reproduced by the reviewer. In the default build a
window showing the buffer kept a `TextView` line index describing the
PREVIOUS contents, and the next paint indexed the new rope with stale
ranges — `assertion failed: end <= self.len()` in `src/rope.rs`. In the
CRDT build `pending_crdt_ops` stayed empty, so replica mirrors never
imported the owner's write and their optimistic edits were generated
against content already replaced. The `delete`+`insert` pair this
replaced had done that fan-out for free.

Now applies ONE whole-buffer `Replace`, returns its `Edit`, and notifies
from the binding. The doc comment states the obligation, because the
next owner to adopt the primitive inherits it.

P2 — "discard history" was false in CRDT mode. The v0.1 stacks are
bypassed entirely there; the history lives in loro's `UndoManager`.
`read_only` stops the replay but not the retention, which is the memory
cost the contract claims to eliminate. `UndoManager` exposes no clear,
but needs none: it records only what happens after it is constructed,
the same property `CrdtState::from_bytes` already uses to keep the seed
insert out of undo. `CrdtState::clear_undo_history` rebinds a fresh
manager to the same doc.

P2 — the docs described the pre-fix architecture. Q#TC6a said no Lua
binding sets `read_only` and round-trip input is the only guard; the
acceptance text still said `is_read_only() == false` while 16b had been
flipped to true; `terminal.lua`'s comment repeated the obsolete claim.
The architecture is layered and now says so: rope-level read-only
protects the daemon copy, round-trip input protects the replica's
optimistic mirror, and neither substitutes for the other. Q#TC6a keeps
its analysis under a superseded-in-part box rather than being silently
rewritten — its conclusion survives, two of its premises do not.

New pins. acc16d paints the window after a SHRINKING generated write:
stale offsets then point past the buffer end, so the failure is the
reported crash rather than merely stale pixels. acc16e asserts the
refresh is queued for mirrors, through the real copy-mode path;
`crdt`-gated and therefore dark in CI, which is why 16d drives the
binding rather than the terminal. Plus a CRDT unit test that ten renders
leave the `UndoManager` with nothing recorded.

Bites: dropping the notify panics acc16d at `rope.rs:145` and fails
acc16e with `queued: []`; dropping the `UndoManager` rebind fails the
new unit test on `can_undo`.

Still open, and recorded in COHERENCE.md §14: the fan-out obligation
makes `*compilation*`/listview adoption more than a one-line swap.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gGQC6eqHJVbZJ5Hg7aLer
2026-07-26 13:43:22 -04:00
Levi Neuwirth 8c5b39ef32 fix(buffer): make generated buffers survive undo
Review round 2, P1. Undo could empty the "read-only" snapshot.

`render_snapshot` wrote with bypass_intercept, which leaves ordinary
undo history behind, and `Buffer::undo` reaches the rope through
`ensure_writable` without ever consulting the intercept chain. So a
single `C-/` — or `M-x buffer.undo`, which needs no keymap at all —
replaced a freshly rendered snapshot with an empty buffer.
`set_round_trip_input` does not help: it routes the key into the daemon
command path, which is exactly where undo runs.

Rebinding the undo chords buffer-locally would not have closed this,
and `compile.lua` already says so in a comment: "command/menu undo
stays dispatchable". `*compilation*` and listview panels therefore
carry the same latent defect today.

Adds `Buffer::set_generated_contents` (Lua:
`pmacs.buffer.set_generated_contents`): lift `read_only`, replace the
contents skipping intercepts, discard the resulting history, re-assert
`read_only`. This ships the framing's deferred immutability lane as ONE
primitive rather than exposing the setter — a bare `set_read_only`
would let a caller lock a buffer it can no longer refresh, which is
precisely why that lane was deferred. Discarding history is
load-bearing twice: it removes what undo would replay, and it stops a
periodically refreshed buffer accumulating rope clones that `read_only`
guarantees nothing can ever pop.

New acceptance 16c drives the real M-x path
(`command.invoke_interactive`), the chord, and redo, and asserts the
owner's own refresh still works — the operation plain `read_only` would
have broken. Acceptance 16b flips from asserting `is_read_only()` is
false to true, because the property it documented is the one that was
wrong. Three `buffer.rs` unit tests cover the primitive directly,
including that ten refreshes leave an empty undo stack.

Bite: restoring the delete+insert render reproduces the report exactly
— `left: Some("")` against the full snapshot — failing 16c and 16b.

Still open, and now named in the framing, COHERENCE.md §14 and the
ledger: `*compilation*` and listview have not adopted the primitive and
remain emptiable by `M-x buffer.undo`; a streaming-friendly variant is
needed for the append case. In CRDT mode `read_only` is what refuses
undo, since loro's UndoManager exposes no clear through `CrdtState`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gGQC6eqHJVbZJ5Hg7aLer
2026-07-26 13:12:08 -04:00
Levi Neuwirth b9fbb42dc0 Merge remote-tracking branch 'githubsucks/main' into terminal-copy-mode 2026-07-26 10:45:32 -04:00
Levi Neuwirth 1b1e599070 feat(terminal): copy mode over retained scrollback
Stage 2 of docs/terminal-config-and-copy-mode-framing.md (rev 4,
approved). `M-x terminal.copy-mode`, or `C-t` in a terminal buffer —
physically `C-c C-t`, since every unescaped key goes to the child —
materializes the retained scrollback into an ordinary read-only,
path-less buffer, with `g` to re-snapshot and `q` to return.

No protocol change.

Materializing is the whole design. isearch, motion, selection and the
kill ring work with no new substrate because the snapshot is a rope, so
SearchStore and the existing match painting apply unchanged. And "keys
must not reach the child" dissolves structurally rather than being
guarded: the transport arm keys on is_terminal(buffer_id), and a
snapshot is not a terminal, so the arm never fires. The
dispatch-shadow count stays at six and describe-key keeps telling the
truth — asserted directly, since that is the observable difference
between the buffer-local idiom and a shadow.

One serializer, not two (Q#TC7). `copy_retained` builds a whole-range
selection and hands it to `copy_selection_bytes`; a second walk would
re-derive soft-wrap joining, wide-glyph continuation, cluster bytes and
per-row trailing-blank trimming, and the two would drift. Four unit
pins in view.rs assert exact bytes against the same projection fixtures
that pin the serializer itself.

Q#TC6a is implemented as two calls, and the second is the load-bearing
one: an intercept guards dispatch only, and no Lua binding sets
Buffer::read_only, so set_round_trip_input is what keeps a replica
frontend from applying optimistically and emitting an op that would
pass ensure_writable and mutate both sides. Acceptance 16 pins that
UNGATED, because CI never compiles the crdt feature.

Eight of nine criteria. Criterion 17's semantic-frontend end-to-end pin
is deliberately absent: the optimistic apply lives only in
pmacs-gpu/src/main.rs and the headless SemanticClient has no optimistic
path, so a faithful test needs the real GPU binary — the a37
foundation, which CI never compiles, silently returns ok when the
binary is unbuilt, and is load-sensitive. Both halves of the mechanism
are pinned ungated instead (16, and 16b for the hazard); the wire-level
half stays an explicit obligation of the CI crdt-coverage lane.

Substrate fact found while wiring lifecycle: TerminalManager::prune
REACTS to a buffer already gone from the registry rather than removing
one, so a child exiting leaves both the terminal and its snapshot
alive. That is why on_removed is a sound teardown hook, and why a
finished command's output stays readable.

Five bites, five different wrong implementations, each failing exactly
one test: removing set_round_trip_input fails acceptance 16 in the
DEFAULT configuration; a naive independent serializer fails all four
unit pins, with the diffs naming each drift mode; making re-invoke
create a fresh buffer fails 18; dropping the kill-with-terminal
teardown fails 18; removing the intercept fails 16b.

COHERENCE.md: §6 gains this as the worked example that a modal-looking
feature need not become a shadow; §11 records the scope="global"
deferral's second live case, making the argument for both registry
deferrals cumulative; §2 step 8 gains copy mode and keeps the
still-missing close command named.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gGQC6eqHJVbZJ5Hg7aLer
2026-07-26 10:10:27 -04:00
Levi Neuwirth 7243714b3f Merge remote-tracking branch 'githubsucks/main' into lean4-stage3a-seams
# Conflicts:
#	docs/active-work.md
2026-07-26 09:25:25 -04:00
Levi Neuwirth 664cc25d0c feat(terminal): profiles, scrollback, and a configurable escape key
Stage 1 of the terminal config/copy-mode arc. The terminal had no
configuration surface at all: the command hardcoded $SHELL, scrollback
was a per-open argument only, and the escape chord was a literal in
Rust. No protocol change.

Profiles are a raw Lua table, pmacs.terminal.profiles, not a registry
setting: ConfigValue is four scalars with no table kind, so profiles
join pmacs.lsp.config and pmacs.pair.sets until table-valued settings
exist. The registry gains three scalars whose defaults reproduce the
previous behavior exactly.

Field resolution is explicit open argument, then profile field, then
scalar setting, then $SHELL. env MERGES, with explicit entries
overriding the profile's, because first-wins there would silently drop
half a user's environment. An explicitly named profile that does not
exist is an error even when terminal.default-profile is valid, so a typo
cannot silently fall back.

The two open-time settings resolve through the GLOBAL chain, because
they are read before the identity buffer exists and no caller could have
pinned a local override on a buffer that does not yet exist. Only
terminal.escape-key resolves per buffer, which makes a per-terminal
escape a supported feature.

The escape key is parsed at most once per (terminal, config epoch), and
the cache lives on TerminalSession so its lifetime is the terminal's,
with no purge hook to forget. The epoch alone is not a sufficient key:
it does not advance when focus moves between two terminals with
different buffer-local values, so an epoch-only cache serves one
terminal's chord to the other. An unparseable value falls back to C-c
and reports once per terminal per effective invalid value through the
status line, because a terminal with no escape chord cannot be escaped
to fix the setting that broke it.

Repeating the escape now sends THAT chord to the child through the
ordinary key encoder, rather than a hardcoded ETX. With an escape of
C-x, the previous code sent Ctrl-C and made literal Ctrl-X unreachable.

C-c t opens a terminal. COHERENCE Priority 1 names a terminal
keybinding, and section 2 step 8 grades the terminal works-but-
undiscoverable; C-c is already a live global prefix, so this is a new
leaf rather than a shadow. It is unreachable from inside a terminal,
where C-c is the escape.

Acceptance is tests/terminal_config_acceptance.rs, deliberately NOT
crdt-gated so CI actually runs it. Four bites, each against a different
plausible wrong implementation: a hardcoded ETX fails acc6/9; an
epoch-only cache key fails acc7; a single last-entry cache fails acc8's
parse count; removing the invalid-value fallback fails acc10.

Two test-instrument notes worth keeping. cat -v is the echo probe
because the screen rejects C0 controls before they reach cells, so a raw
echoed Ctrl-X would be invisible. And the probe counts occurrences
rather than testing presence, because a single-character probe collides
with the child's own banner text.
2026-07-25 18:36:18 -04:00
Levi Neuwirth a9ef257930 fix(lsp): decline a non-UTF-8 canonicalization; round 1 review
Six findings from review, one of them a real defect.

**`canonicalize` could emit a path that exists nowhere.**
`p.display().to_string()` substitutes U+FFFD for non-UTF-8 bytes, so a
resolution landing on such a path returned a plausible-looking string
that does not exist on disk — worse than nil, because this value becomes
a server-affinity key through `file_uri_for` and would silently fail to
round-trip, while the doc promised nil for anything unresolvable. Now
`.and_then(|p| p.to_str().map(str::to_owned))`: unrepresentable is a
decline, matching how the fs layer already treats non-UTF-8 symlink
targets.

Pinned by a new acceptance case that reaches a non-UTF-8 target through
an **ASCII** symlink, so the input is representable and only the
resolved output is not — the case a UTF-8 check on the argument would
miss. Bitten: restoring `display()` fails it.

The other five:

- `on_response`'s doc comment now warns that registering against a
  server with no attached buffer is fire-on-death, not fire-on-reply,
  because the drain visits only attached sids. It looks exactly like a
  hung request while debugging, and 3b is the first caller likely to
  hit it.
- `deliver_response`'s comment still carried the pre-correction
  rationale ("removed BEFORE invocation ... must not be re-entered") —
  the claim the bite disproved. It now says what is true: removal is
  unconditional, before-vs-after is unobservable without a re-entrant
  drain, and the reachable bug is gating removal on a clean return.
- Dropped `server_attempt`'s unused second return.
- Deleted a vacuous assertion in the no-attachment test (counting `_G`
  entries to assert "lua globals are readable") — scaffolding that
  pinned nothing, the exact shape the project's own lesson flags.
- `#[cfg(unix)]` on the three symlink-dependent tests.

Gates re-run in full. The sweep's first pass tripped
`composition_overhead_under_ten_percent` at 18.8% against a 10% budget;
it passes 3/3 in isolation here, passes in isolation on main, and the
same run reported the realistic-frame overhead as **-4.6%** — a negative
figure is measurement noise, not added work. Nothing in this diff is on
the render path. Rerun of the full sweep: 3,189 across 93 suites, zero
failures.
2026-07-25 16:53:27 -04:00
Levi Neuwirth bdd7611d0e Merge canonical main (#161) into the dired Stage 1 lane
Multi-root LSP affinity merged as #161 (`main` @ `46a1b8f`) while this
lane was in review, which made the PR conflict -- and a conflicting PR
has no merge ref, so GitHub silently stopped running CI on it after the
first push. Integrating rather than rebasing, per the #135/#137
precedent: the review anchors stay addressable and every gate is rerun
against the merged tree.

One conflict, in COHERENCE.md's in-flight list, resolved as the union of
both truths -- and #161 is now merged, which its own text still called a
PR.

The overlap to watch is `src/lua_bindings/mod.rs`: #161 widened the
`lsp.list()` row builder while this lane added `pmacs.path` and the
read_dir listing conversion. The merge was textually clean, which the
folding arc's lesson says is not the same as compiling, so the full gate
suite reruns from here.
2026-07-25 16:04:00 -04:00
Levi Neuwirth 12236b265d feat(lsp): notification/response dispatch seams and fs.canonicalize
Arc 8 Stage 3a (framing Q#LN9, Q#LN20). No Lean content: this changes
the event drain every LSP language runs through, and is split from the
Lean server work for the reason Stage 2 was.

**The seams.** `handle_server_requests` handled five `request` methods
and `initialized`, dropping every `notification` and `response` on the
floor. Dropping responses made `pmacs.lsp.send_request` a write-only API
from Lua — the reply was drained and discarded, so nothing outside
Rust's typed stores could consume one. Two new arms route to
`pmacs.lsp.on_notification(method, fn)` (persistent, method-keyed) and
`pmacs.lsp.on_response(sid, request_id, fn)` (one-shot). Both extend the
existing loop rather than opening a second `events_take` caller, which
would steal events from it.

A one-shot is removed **before** invocation, so a raising handler cannot
be re-entered. Every subscriber is `pcall`ed and a raise reports through
`pmacs.editor.set_status` per COHERENCE §1.2 — not `pmacs.error`, which
is defined nowhere in production. The notification list's length is
captured before the walk so a subscriber registering another cannot
extend the list being iterated.

**The purge is driven off `pmacs.lsp.list()`, not off a death event.**
The framing said acceptance 34's second edge was a killed buffer. That
was wrong, and scouting the implementation is what caught it: pmacs
fires exactly five hooks (`buffer.after-edit`, `buffer.after-load`,
`buffer.after-switch`, `frontend.detached`, `process.after-tick`) and
there is no buffer-kill hook at all, so `lsp.lua` never tears an
attachment down and the drain keeps reaching that server. No leak there.

The real leak is a different path with the same root cause. The drain
builds its sid list from `attachments`, and `attach_buffer` drops a sid
from that table the moment `server_is_live` reports false — rebuilding
against a fresh server. So the `crashed` / `stopped` event that should
trigger the purge is precisely the one most likely to go undrained. A
purge wired to that event leaks exactly when it matters.

`pmacs.lsp.list()` enumerates the manager directly and is unaffected by
attachment bookkeeping, so the purge polls it after each drain: a sid
that is absent, terminal, or running a **new generation** settles its
pending one-shots with an error. The generation check uses the `attempt`
field, because a crash-then-restart reuses the sid — without it a
one-shot would sit waiting on a reply the dead generation owed.

**`pmacs.fs.canonicalize`** (Q#LN20) is the one synchronous function on
`pmacs.fs`, and synchronous is the point: its consumer is a
function-valued `config.root` called from `ensure_server` <-
`attach_buffer` <- `buffer.after-load`, where there is no coroutine and
`pmacs.fs.stat`'s awaitable handle is unusable. It is installed from
`install_async` rather than `install_project` purely for load order —
`make_workspace` runs after `fs.lua` is evaluated, so a canonicalizer
placed there reads nil.

Acceptance: `tests/lsp_dispatch_seams_acceptance.rs`, 14 tests, driven
against `pmacs_fake_lsp` through rust so nothing needs a toolchain.
Dispatch integrity is exercised at real co-occurrence — the fake server
writes `workspace/applyEdit` and the `executeCommand` reply back to
back, so both land in one `events_take` batch. 34b asserts affinity
survives a symlinked open and is paired with its own falsification: the
same resolver minus the canonicalize call spawns two servers, so the
positive case cannot be vacuous.
2026-07-25 15:37:48 -04:00
Levi Neuwirth 531fdf404e fix(dired): address PR #165 review round 1
F1 (real, small-window misbehavior). `dired.revert`'s re-seat runs after
the read settles, and `pmacs.editor.move_to_line` is AMBIENT -- it moves
whatever window is active. A user who switched buffers (or hit `q`)
while the re-read was in flight had an unrelated buffer's cursor moved
to a line index that only means something in the dired listing. The
paint was already safe because it names its buffer; the seat now runs
only while dired is still the active buffer, and `seat_cursor`'s doc
says which callers are unconditionally in the right place and why.
Pinned by a test that starts the revert, switches to a six-line file
before the pump, and asserts that buffer's cursor never moved -- and
that the dired buffer still reverts when it IS active.

F2 (a trap set for Stage 3). `fmt_size` used `%10d`, so a size past ten
digits -- 10 GB and up, ordinary for VM images and core dumps -- widened
the field and shifted mtime and name right on that line alone. Cosmetic
today, but `_layout` is exported as a contract and Stage 3's
column-classifying intercept is planned against it. It now takes
`fmt_mtime`'s discipline: exact bytes while they fit, else a
fixed-width magnitude, so precision yields to the invariant rather than
the other way round. This is not the deferred human-readable column --
the exact count still shows right up to where it cannot. Pinned with a
sparse 12 GB fixture that skips if the filesystem refuses it.

F3 (honesty and a doubled read). The symlink arm claimed the probe cost
"one syscall"; it was a full `read_dir` -- opendir plus one lstat per
child -- and on success `open_directory` immediately read the same
directory again. Since `open_directory` reads before touching editor
state and raises having changed nothing (acceptance 15's invariant), its
failure IS the "not a directory" answer: the probe is gone, one read
remains, and the comment says what it actually does. New test pins both
arms -- a symlink to a directory descends under the path the user walked
(canonicalization is lexical, so the link is not resolved), and a
symlink to a file opens with the target's contents.

F4 (deliberate failure mode). A tolerant listing recorded readdir
iterator errors without bound, and `std::fs::ReadDir` need not terminate
after yielding one. Cancellation is NOT an adequate backstop here --
which is the reason for a constant rather than a comment saying it is: a
dired listing carries no supersede key, so nothing cancels it. A
directory whose iterator produces nothing but errors now fails with the
last error the way an unopenable directory does, after
READDIR_MAX_CONSECUTIVE_ENTRY_ERRORS; the counter resets on any entry
that materializes. Documented as untested and why: faking a failing
iterator needs the walk generic over it, a refactor with no other
consumer.

Smaller notes, all taken: READ_ONLY_LIMIT renamed NAME_VARIANT_LIMIT (it
caps `<2>`..`<99>`, nothing read-only); `fmt_perms`' omission of
setuid/setgid/sticky documented as a decision tied to the M8.3 fixture's
nine-bit parser; `format_outcome` binds the slice in the pattern instead
of re-traversing; and `pmacs.path.canonicalize`'s `to_string_lossy` is
noted as inside the existing non-UTF-8-path deferral rather than an
exception to it.

Process note, learned the hard way twice now: the round-1 dired.lua
fixes were briefly wiped because a mutation-bite helper restores with
`git checkout --`, which reverts to HEAD -- so a fix must be committed
BEFORE it is bitten, not after.
2026-07-25 15:21:26 -04:00
Levi Neuwirth f71055a206 feat(dired): the directory view (Stage 1)
Dired is the file surface, not a rider on one: before Stage 0 (#162)
pmacs had no way to open a file by path, and browsing is the half a
user reaches for when they do not already know the path. Stage 1 ships
the view.

builtin/runtime/dired.lua: one buffer per directory named by the
canonical path (Q#DR2) with an ownership check before any paint (F7);
read-only intercept plus round-trip input (Q#DR3); a `dired` major mode
carrying mode-scoped keys (Q#DR8) -- RET/f visit, ^ parent, n/p, g
revert, q quit, s sort; cursor re-seated by basename across every
wholesale repaint (Q#DR9); file visits through
`pmacs.window.display_file` and directory descent through dired's own
window (Q#DR10); `C-x d` / `C-x C-j`; and `dired.kill-when-opening`
through the config registry.

Two Rust changes, both narrow:

* `read_dir` grows per-entry tolerance behind an opt (Q#DR6). Five
  per-entry conditions used to fail the entire listing, so a plain
  refresh of a busy directory could just fail; the module doc's claim
  that a tolerant wrapper was "the package's job" was false, because
  the primitive hands Lua one structured error and no partial vec.
  Per-entry readdir/lstat/readlink failures and non-UTF-8 symlink
  targets now land in an `errors` channel; parent-level failures and
  non-UTF-8 *names* stay fatal. The tolerance travels in the settled
  payload, so the Lua boundary keeps the bare-array shape the frozen
  M8.2 fixture consumes and never has to look the job back up. The read
  ops' opts parsing now rejects unknown keys, so a typo'd `tolerant`
  cannot silently degrade to the fatal contract.

* `normalize_buffer_path` is exposed as `pmacs.path.canonicalize`
  rather than mirrored in Lua. Q#DR2 named exposure the preferred end
  state; it needs no borrow plumbing, so dired's name-dedup and
  `display_file`'s `find_buffer_for_path` dedup cannot fork, and the
  mirror's Stage 2 removal is not owed.

tests/dired_acceptance.rs covers framing items 1-16 (22 tests), driven
through real key dispatch. Item 17 is the m8_1/m8_2/m8_3 gate.

One framing claim is corrected by the substrate: R2-3 expected a
dedicated dired panel to carry its dedication across a descent, but
`display_buffer` never replaces the buffer in a slot dedicated to
another one -- it discards every side-specific parameter and falls back
to the document window (Q#BP3 2.iii). Dired does not try to unpin the
user's panel; both arms are pinned.
2026-07-25 14:54:58 -04:00
Levi Neuwirth 1ae5963e9d feat(lsp): one server per detected project root (Q#LN15)
`ensure_server` reused any live server whose `language_id` matched,
regardless of project root — its own comment documented this as a known
post-v0.1 limitation. For project-model-strict servers that is a
correctness failure, not a rough edge: `lake serve` is bound to one Lake
package, rust-analyzer and gopls to one workspace, so the second project
a user opens gets a server that cannot resolve its imports.

Server affinity is now keyed on the project root, with one rule that
keeps the change from regressing every other language:

  The affinity key is the root only when a root was actually FOUND.

`project_root_for` never returns nil for a file that has a path — its
last resort is the file's own directory — so a naive `(language_id,
root)` key would give every directory of loose scratch files its own
server, for every language: two stray .py files in different directories
would spawn two pyrights where today they share one. It now returns
`root, source` with source one of "config" / "detected" / "fallback",
and only the first two become an affinity key.

Matching is on the spawned spec's `root_uri`, nil matching nil, so the
fallback spawn passes `root_uri = nil` for the key and the stored spec to
agree. `cwd` still carries the directory, and `build_initialize`
(src/lsp.rs) derives the identical `rootUri` from `cwd` when the field is
None — using a percent-encoder with the same allowed set as Lua's
`file_uri_for`. The initialize payload for that case is therefore
byte-identical to before; only what the reuse loop matches on changes.
`build_initialize` is the only reader of `spec.root_uri` in the tree.

Two consequences, both deliberate and both asserted rather than
discovered:

- A server hand-spawned from init.lua with only `cwd` set also reads
  back nil, so a root-bearing attach will not adopt it. We cannot know
  which root it was meant to serve, and guessing wrongly routes a
  project's files to the wrong server.
- Opening files across N project roots spawns N servers. rust-analyzer
  has the same property and no editor caps it by default; `pmacs.lsp.stop`
  is the manual escape and an LRU reaping policy stays deferred.

`config[language].root` may now be a `function(path) -> string|nil` as
well as a string, for languages whose root rule the shared marker walk
cannot express — an innermost-wins walk cannot find an *outermost*
marker. A resolver returning nil declines and falls through to the marker
walk. Results are memoized per directory because hoisting the root
computation above the reuse loop puts it on every attach rather than
every spawn; the memo is keyed weakly by the resolver function itself, so
replacing `config[lang].root` cannot serve a root the old one computed.

`pmacs.lsp.list()` rows gain `root_uri` and `cwd`. `root_uri` is the spec
field verbatim, deliberately not the URI the server was initialized with.

No protocol change. No Lean content: this is the shared affinity function
for every LSP language, so it ships as its own PR and is exercised
through rust, python, go and typescript against `pmacs_fake_lsp`.

tests/lsp_multi_root_acceptance.rs covers acceptance 13-21. Every fixture
sets `pmacs.project.set_search_boundary` at its own tempdir root:
without it the marker walk climbs to the filesystem root, and a stray
`.git` above the temp directory would turn the markerless cases into
detected ones — the assertions would still pass while testing nothing.

Refs docs/lean4-mode-framing.md Q#LN15, acceptance 13-21.
2026-07-25 10:36:11 -04:00
Levi Neuwirth 9110f9f32c fix(window): keep pmacs.window.buffer() infallible with no argument
PR #155 review round 2, self-review of the round-2 commit.

The round-2 change labelled "minor" — resolving both arms of
pmacs.window.buffer() through the acting frontend for uniformity — made
the NO-ARGUMENT arm fallible. `acting_frontend` follows the interactive
origin, which can name a frontend that has no registered view: a bare
`dispatch_key` from an unattached peer does exactly that. `selected_window`
then raises "acting frontend has no layout" instead of answering.

Nothing surfaced that error, because the runtime callers do not pcall it.
killring, syntax, autosave, pair, indent and comment all read
pmacs.window.buffer() on ordinary edits, so the raise silently dropped
the operation: kill_ring_acceptance went 30/30 to 25/5, with
frontend_detached_drops_per_frontend_state reporting only "B has kill
state". main is 30/30, and reverting this one file restored it.

The no-arg arm is back on ambient active_buffer_id() and now documents
why that is deliberate rather than an oversight: dispatch sets
active_frontend to the acting frontend before running a command, so the
two agree on every real path, while only the ambient resolver has the
fallback that makes it total. The explicit-window arm keeps its Q#BP11
layout validation, which is what the arc actually needed.

acc19c pins it through the real path — a buffer.after-edit subscriber
reading pmacs.window.buffer() during a viewless peer's dispatch_key —
rather than by calling the binding directly. Bite-verified:
scripts/bite bbe4152 src/lua_bindings/mod.rs --test
bottom_panel_stage1_acceptance -- acc19c goes red with the exact
"acting frontend has no layout" traceback.

The ledger also records two gating facts 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; and a latent pre-existing main
bug in the buffer CRDT undo path, which is not this branch's and whose
proptest seed is deliberately not committed here.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012j4omtTMn9v1UfmHQb9ap6
2026-07-24 20:05:51 -04:00
Levi Neuwirth 4d44be5d7b fix(terminal): implement the Q#BP7 growth re-arm and pin it honestly
PR #155 review round 2.

Finding 1 (must fix): Q#BP7 item 1 — "growth reaching the live tail
re-arms follow (top -> None), only when no selection is active" — was
never implemented. `at_bottom` is the instantaneous geometric readout
`scroll_offset == 0`, which a still-anchored view satisfies whenever it
happens to be tall enough to reach the tail, so the round-1 assertion
could not see the gap: the next rows the child printed pushed the
anchored view back into history.

`rearm_follow_on_growth` now clears `top` when a viewport-size
declaration makes the view cover the tail and no selection is frozen,
and every size-declaring path (`snapshot_for_view`, `record_view_size`,
`view_status_for_size`) routes through one `declare_view_size` helper so
grid and semantic declarations cannot disagree. `scroll_view` and
`begin_selection` deliberately stay out: they write `top` themselves,
and `scroll_view` already owns the scroll-driven arm.

New acc32b is the pin the review asked for: scroll into history, grow
past the tail, then release a SECOND burst of child output through a
filesystem gate and assert the view moved with it.

Finding 2: the PTY fixtures emitted LF-only output, which staircases
rightward until every row clips to blanks past the viewport width — so
the round-1 anchor assertions compared "" with "" and could not fail.
Both fixtures now emit CRLF, and each anchor comparison is guarded by
`assert!(!top_before.is_empty())`.

Finding 3: acc33's contrast case asserted nothing, and the behavior it
claimed was false as coded. With the re-arm in place it is true and now
asserted: clearing the selection at the same geometry re-arms follow and
leaves the frozen anchor.

Finding 4: `start_run` gated the panel branch on `display == "panel" or
already_in_panel(..)`, so an explicit `display = "current"` lost to the
inference — and that value is the documented user-facing opt-out from
the Stage 3 default flip. Now gated on OMISSION. acc19b gains the
explicit-"current" case.

Finding 5: `window_drag` is a `HashMap<FrontendId, WindowDragState>`, so
a peer's mode-line press can no longer steal or clear another
frontend's in-flight gesture, and concurrent drags are legal. Cleared on
detach. acc30c gains the mode-line-press case.

Minor: `pmacs.window.buffer()` resolves both arms through the acting
frontend using the shared `lookup_window` / `selected_window` validators
rather than re-implementing them beside an ambient `active_buffer_id()`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-24 18:32:23 -04:00
Levi Neuwirth 90fc7a913e fix(window): wire the side-window split guard and scope the divider drag
PR #155 review round 1.

Finding 1 (must fix): `try_split_active` had no production caller —
`pmacs.window.split_horizontal` / `split_vertical`, and therefore
`C-x 2` / `C-x 3`, still went through plain `split_active`. Splitting a
focused panel made the root wrapper's final child a split rather than
`Leaf(side)`, which both `Layout::compute`'s fixed pass and
`document_subtree` key on: the panel band reverted to 1:1 weight
division and an ordinary window ended up living inside it. Both bindings
now route through the guard, and acc26 asserts through the real Lua
path — a direct core call passes with the guard unwired, which is how it
survived the first round.

Finding 2: the armed-drag early return now checks the arming frontend,
so one frontend's in-flight gesture cannot cancel or swallow another's
mouse events. New acc30c.

Finding 3: `paint_mode_line_graphemes`'s doc block was left heading
`paint_divider_segment`; moved back.

Finding 4: a recompile carries no `display`, so it took the raw switch
and duplicated a panel-placed `*compilation*` into the document window.
`start_run` now detects that the buffer already owns the panel slot.
`pmacs.window.buffer` gained an optional window argument so an adopter
can ask without selecting the panel first. New acc19b.

Stage-2 hazard pins the review asked for, both in `src/daemon.rs`:
a fresh attach while LOCAL is focused in a panel inherits LOCAL's
document buffer, and an initial-target bootstrap whose `after-load`
hook creates and selects a panel still reasserts into a document window.

Minor: dropped listview's dead `p.side`; documented `focus_window`'s
caller-validates contract; `jump_back` restores through `focus_window`
so the "every focus change" contract holds; `params` / `resize` default
to the acting frontend's selected window rather than the ambient one;
widened the flexible-division math to u64 intermediates.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-24 15:07:35 -04:00
Levi Neuwirth 683c9b86aa feat(window): adopter placement opt-in and the Stage 1 acceptance suite
- `listview.open`, `compile.run`, and `pmacs.terminal.open` all take the
  same strict `display = "current" | "panel"`, validated before any
  buffer, session, process, or wrapper exists. Omission keeps today's
  behavior; Stage 3 flips the default.
- `listview.quit` / `compile.quit` delegate to `window.quit` only when
  the buffer really is in a side window, so the presentation is deleted
  or restored instead of leaving a source buffer stranded in the slot.
- LSP `visit_location`, LSP go-to-definition, and compile `visit_error`
  route through `display_file`, so a visit from a panel lands in the
  document target and fires its hook with that window active.
- `window.quit`'s Delete arm focuses the revalidated remembered origin.
- Capability fallback discards an accompanying `height` rather than
  rejecting the call.
- `window.min-height` clamps a below-floor value on read instead of
  refusing the write.
- `tests/bottom_panel_stage1_acceptance.rs`: 42 tests over the framing's
  Stage 1 criteria, including the two production `Layout::compute`
  callers, the recursive minima, hide/reappear, the final-focus matrix,
  quit chains at the depth cap, per-frontend jump origins, the divider,
  and a real-PTY pin of Bet B1.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-24 14:10:45 -04:00
Levi Neuwirth 6c8a76e235 feat(window): window parameters, fixed extents, and the display policy
Stage 1 substrate for the bottom-panel arc (docs/bottom-panel-framing.md).

- `WindowParams` (side / fixed_rows / dedicated + implementation-owned
  quit action and remembered document origin), `Side`, `QuitAction` with
  a bounded replacement history, and the `MIN_WINDOW_OUTER_ROWS` floor.
- `Layout::compute(area, fixed)` allocates fixed rows before dividing the
  remainder by weight; both production callers feed the same shared map,
  including the peer-presence overlay pass that derives its own rect.
- `subtree_min_rows` / `interactive_min_rows`: the recursive minima, and
  `boundary_below` for the shared drag / keyboard resize boundary rule.
- `FrontendView` gains `panel_capable`, `frame_geometry`, and the derived
  `panel_hidden`, each spelled explicitly at every construction site.
- `EditorCore`: `primary_document_window`, the non-side target rule,
  `display_buffer` + placement policy, `quit_window`, side-window removal
  on `kill_buffer`, per-frontend jump entries with origin windows, and the
  shared resolve/load-without-switch seam the initial-target bootstrap now
  uses too.
- `EditorState`: the panel reconciliation transaction, geometry
  declaration, the side-window `dispatch_idle_for` gate, divider paint,
  and divider drag.
- `pmacs.window.display / display_file / quit / panel / params /
  set_params / resize / display_target`, plus `builtin/runtime/window.lua`
  with `window.panel-height`, `window.min-height`, and the resize commands.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-24 13:53:14 -04:00
Levi Neuwirth b750000d06 fix(fold): key the managed Lua widening on the EFFECTIVE edit site
PR #149 review round 5, finding 1 — correct, and both round-4 bugs did
survive through the intercept path.

Round 4 moved the widening off the point and onto `edit_start_of(&op)`,
but ran it in `run_buffer_edit` BEFORE `run_managed_edit`. A managed
buffer intercept may legally rewrite `pos` / `start` / `end`
(`LuaInterceptView::intercept_edit`), so the requested op is not where
the edit lands:

  - requested outside -> intercept relocates inside: the edit stayed
    hidden;
  - requested inside -> intercept relocates outside: an unrelated fold
    opened.

The seam still covers BOTH paths — hooking only `run_managed_edit` would
let an interactive `bypass_intercept` edit escape, which is why the
framing put it on the common entry — but each path now keys on its own
effective site:

  - `run_bypass_edit` applies its op verbatim, so `run_buffer_edit`
    hooks it there;
  - `run_managed_edit` hooks after the intercept chain settles and
    before the apply, on the op the chain returned. A chain that raises
    applies nothing, so it unfolds nothing.

The registry borrow is released at that point, and the helper reads only
`SharedCore` + the fold registry, so no borrow conflicts with phase 3.

Three new tests, all through real `M-x` with a real
`pmacs.buffer.add_intercept`: relocate-into-a-fold must unfold,
relocate-out-of-a-fold must not, and a rejected chain must not. Each
asserts the buffer text first, so the test fails loudly if the intercept
stops relocating rather than silently passing.

Suite 45 -> 48.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q5BkezMppbpCgGAYk2ftxV
2026-07-23 21:45:33 -04:00
Levi Neuwirth 90bb86d355 fix(fold): address PR #149 review round 4
All four findings were correct.

F1 (major) — the Lua widening keyed on the POINT, not the edit site.
Q#FD19 condition (iii) is `edit.range.start`; `run_buffer_edit` discarded
`op` and opened whatever fold contained `window.cursor`. Two wrong
behaviors followed: a command inserting elsewhere opened an unrelated
fold at the point, and — worse — a command editing INTO a fold from an
outside point left its edit hidden. `run_buffer_edit` now reads
`edit_start_of(&op)` before `op` is consumed and passes it down. The
`apply_active_edit` funnel stays point-keyed, which is correct and
deliberate: the six primitives, yank, and query-replace all place point
at the edit site first, and only the Lua path can diverge — now said so
in the doc comment.

The acceptance test encoded the wrong behavior (inserted at byte 0,
expected the cursor's fold to open). Replaced by two tests that pin both
directions, plus the framing's named **comment-toggle** case driven
through the real `M-;` on a file-backed Rust buffer rather than a
synthetic mutator.

F2 (major) — hidden-cursor motion normalized only the row. `move_up` /
`move_down` clamped `coord.row` but derived `goal` from the hidden
line's raw column, and returned early at a buffer boundary without
normalizing at all, so `Up` inside a fold headed on line 0 left the
logical cursor hidden. Added `normalize_cursor_to_visible`, which
projects the whole POSITION through `visible_position` as a real
mutation before any step is computed (and drops the sticky goal column,
since the jump is discontinuous). Paging shares it — the same latent
bug. The old test used equal-width lines and asserted only the line, so
it could not tell the two apart; the new fixture is deliberately ragged
and asserts the resulting BYTE in both directions, plus the boundary
case.

F3 (moderate) — `set_view_top` bypassed the fold clamp. Q#FD12/Q#FD18
say `view_top` is always set through `clamp_view_top`, naming the
`set_view_top` contract specifically. Rendering repaired it at the next
frame, but until then `view_top()` handed out a hidden line and
command/event reckoning could start from a non-visible origin. The
clamp now lives in the setter — the contract's home, what `saveplace`
and `pmacs.editor.set_view_top` call. New test reads `view_top()`
directly after the setter, before any paint.

F4 (moderate) — the suite claimed items 1–14 but omitted approved
clauses. Added: peer SELECTION endpoint projection with hidden interiors
dropped; the crossing-fold repeat for the peer cursor AND a peer
selection endpoint; a style/syntax span straddling a fold (alignment on
the shifted row); the completion popup anchored below a fold; and peer
presence in the split-buffer case using the RECIPIENT window's map.

Suite: 35 -> 45 tests. Eight new bite cases, each falsifying exactly the
line that implements its claim.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q5BkezMppbpCgGAYk2ftxV
2026-07-23 20:46:47 -04:00
Levi Neuwirth 313b1ff77a feat(fold): Stage 2 — grid (daemon-rendered) collapse
Implements docs/folding-stage2-framing.md rev 4. The daemon grid
renderer now consults the fold store: hidden lines are omitted, rows
below shift up, and every consumer that assumed
`display_row = source_line - view_top` routes through one shared
projection. No wire schema change and no protocol bump (Bet B6) — the
collapse is entirely daemon-side; the GPU path is Stage 3.

The spine (Q#FD12) is `src/fold_view.rs`: a `VisibleLineMap` derived
from `FoldRegistry::folds` plus a window's line offsets and never
stored. Its unit is a merged **hidden component** — overlapping OR
adjacent hidden intervals unioned, each keeping the one visible
`head_line` and that line's exact `head_position`. Adjacent intervals
merge because the later fold's head is itself hidden, which is what
makes nesting, shared heads, and crossing overlap all resolve to a
head that can actually render (round-3 F2).

Instances are short-lived and built **per rendered window** and **per
command/event operation**, never once per frame: `paint_frame` renders
several windows that may show different buffers, so a singleton would
leak one pane's folds into another (round-2 F2). The render instance
rides on a lifetime-bearing `Viewport<'a>` as `Option<&'a
VisibleLineMap>` — a shared ref is `Copy`, so `Viewport` stays `Copy`
(Bet B7).

Rendering:
- `TextView::render` walks visible lines; the head line gets a
  trailing content-area ellipsis (Q#FD13).
- The gutter walks visible lines too: Absolute keeps the raw `line+1`,
  Relative/Hybrid measure VISIBLE distance anchored on the cursor's
  visible head (Q#FD14). The fold glyph takes the col-0 sign cell only
  when a gutter exists — line numbers default to Off, so with no gutter
  the ellipsis is the sole marker (Q#FD20, round-1 F3). A diagnostic
  clamped onto the head wins that cell by paint order.
- A diagnostic on a hidden line clamps its SIGN to the outermost
  visible head (most-severe merge); the squiggle needs a real row, so
  only the sign clamps (Q#FD15).
- Caret, local selection endpoints, and peer cursors project via
  `visible_position_of` — the head row AND the head's end-of-content
  column, never an arbitrary column (round-2 F3). Peer presence derives
  the RECIPIENT window's map.
- Style/search/completion overlays route through
  `Viewport::row_offset_of`; the mode-line indicator reckons in
  visible-line space.

Command/event time is scoped per frontend (Q#FD21): a
`fold_projection` flag on `FrontendView`, set at attach from the
negotiated `semantic_render` bit (grid ⇒ true, semantic ⇒ false until
Stage 3, LOCAL ⇒ true) and never inferred from a `FrontendId` (Bet
B8). Without it, shared `EditorCore` motion would make a simultaneous
unfolded GPU session's cursor skip lines it still displays. The map's
two axes stay separate (round-3 F1): the acting frontend supplies the
policy, the operation's TARGET window supplies the buffer — a wheel
event names a pane without activating it.

Motion (Q#FD17, ruled: include), paging, wheel, the click inverse, and
the auto-scroll clamp all step by visible lines under that gate;
motion from a hidden logical cursor normalizes to the visible head
first. `view_top` stays a source-line index (Bet B5), set only via
`clamp_view_top` so it never rests hidden.

Unfold widening (Q#FD19): the pre-edit unfold moves to the top of
`apply_active_edit` — one funnel that subsumes the six primitives'
calls and covers yank + query-replace, both of which place point at
the edit site first. Interactive Lua mutators hook the common
`run_buffer_edit`, above the managed/bypass split, gated on
`InteractiveCommandOrigin` AND the edit targeting that frontend's
active-window buffer. The remote/optimistic-CRDT path stays excluded
(Stage 3); undo/redo unfold stays deferred.

Acceptance: `tests/folding_stage2_acceptance.rs`, 35 tests asserting
on the real `paint_frame` cell grid, covering framing items 1–14
including crossing folds, a nested deeply-hidden cursor, a split of
two different buffers with an inactive-pane wheel, and simultaneous
grid+semantic motion.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q5BkezMppbpCgGAYk2ftxV
2026-07-23 19:24:07 -04:00
Levi Neuwirth 9691dd4e9f fix(fold): address PR #142 review round 1
- **Finding 1 (bug):** a delete starting exactly at a fold's `end`
  removed the `\n` that `end` names — the last hidden line's terminator —
  but the strictly-after arm (`os >= e`) kept the fold, leaving a mid-line
  end. `translate`'s after-arm is now `os > e || (os == e && old_len == 0)`
  so a pure insert at `e` still stays outside while a delete at `e` falls
  to the drop arm, symmetric with the head side. New unit test
  `delete_starting_at_tail_boundary_drops_fold` (bite-verified).
- **Finding 2:** `pmacs.buffer.kill` didn't clean the fold registry.
  Added `FoldRegistry::forget_buffer(id)` (id-keyed; the view died with the
  buffer) and wired it into `after_buffer_removed`, mirroring the
  keymap/config cleanup; the registry is now stashed as Lua app-data.
  `forget(&mut Buffer)` is clarified as the revert/reload reset.
- **Finding 3:** `fold.close-all` now moves the invoking point to the head
  when it closes a fold around it (Q#FD3); the data-API `fold` exemption
  (programmatic, no invoking point) is named in the module doc.
- Nits: dropped the dead `!(both empty)` conjunct in `fold_state_msg`;
  replaced the trivial fresh-registry assert; added coverage for the
  stale-tree refuse via a fold command, the read-only-buffer rejection
  (Q#FD11), and unfold normalizing an arbitrary range.

Gates green: fmt, clippy --workspace --all-targets, --lib (1786),
--features crdt (1962), folding_acceptance (24), m4 (skip basedpyright),
required-GPU, git diff --check.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q5BkezMppbpCgGAYk2ftxV
2026-07-23 13:42:20 -04:00
Levi Neuwirth 3b411dbb2a feat(fold): Arc 6 Stage 1 — instance fold engine (headless)
The fold engine behind `docs/folding-framing.md` (approved rev 5): a
per-buffer fold store, a structural tree-sitter fold source, the
state-aware Lua command + data-API surface with the Emacs hideshow
`C-c @` bindings, the dispatch-layer pre-edit unfold, and `FoldState`
production. No rendering — Stages 2 (grid) and 3 (GPU) consume the store.

- `src/fold.rs`: `FoldStore` (a buffer-attached `View` that translates
  ranges on every edit and drops any whose head/tail the edit crosses,
  provenance-blind — Q#FD6), the structural source (nearest block-like
  node >= 2 source lines -> introducer<->body -> **derived head line**,
  the line immediately above the first hidden line, so wrapped signatures
  and `where` clauses stay visible per R3-1 -> **closer-aware tail**, a
  closing-delimiter line stays visible per R2-5), injection-layer walk,
  `(start, end]` containment, and the state-aware ops (close innermost
  open / open outermost closed / org-TAB cycle). Stale/absent tree
  refuses (Q#FD10).
- `src/lua_bindings/fold.rs`: `pmacs.fold.*` — explicit-buffer data API
  (`fold`/`unfold`/`folds`/`toggle`) + interactive helpers, validation
  (Q#FD11: document buffer, UTF-8 boundaries, >= 1 hidden line — Q#FD9
  falls out of the last clause), point-moves-to-head (Q#FD3).
- `builtin/runtime/fold.lua`: `fold.toggle/close/open/close-all/open-all`
  commands + the `C-c @` prefix set (Q#FD4).
- `src/editor_core.rs`: the six point-anchored edit primitives run the
  pre-edit unfold keyed on the authenticated source's point (Q#FD5,
  command path); `EditorCore` owns the shared `FoldRegistry`.
- `src/semantic_render.rs`: the `FoldState` producer —
  authoritative-empty, diff-suppressed, baseline resets on
  `BufferSnapshot` (Q#FD8); the "never emitted" pin split so
  `BlockAdornments` stays unproduced.
- `tests/folding_acceptance.rs` (16) over real Rust/Python/markdown
  grammars + `fold_state_producer_transitions` + 15 engine unit tests.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q5BkezMppbpCgGAYk2ftxV
2026-07-23 12:14:00 -04:00
Levi Neuwirth 3f0252fb97 Merge canonical main into vterm-tui
Integrate mode-system wiring and handoff updates before PR #130 lands.
Preserve per-frontend terminal dispatch while resolving major-mode keymaps,
and expose mode, terminal, and LSP statusline providers together.
2026-07-22 10:28:56 -04:00
Levi Neuwirth b9a7e40855 fix(vterm): harden view anchors and interactive authority
Clamp anchors into partially evicted wrapped lines, require authenticated
interactive origins, and avoid per-mouse cell snapshots. Restore dispatcher
rationale, named context errors, and focused regressions for the corrected
contracts.

Co-authored-by: OpenAI Codex <codex@openai.com>
2026-07-22 09:09:44 -04:00
Levi Neuwirth 8702791de9 fix(vterm): honor terminal escape and view contracts
Require the fixed C-c escape before editor-local terminal bindings, reject context-implicit Lua operations from document windows, and make controller replacement atomic per frontend. Borrow screen rows during view projection instead of deep-cloning retained history, preserve view anchors through zero-area layouts, and remove redundant detach paths.

Add focused child-input coverage for unescaped bound keys and C-c C-c, plus controller, zero-area, context-error, and clone-free projection assertions.

Co-authored-by: OpenAI Codex <codex@openai.com>
2026-07-22 08:28:18 -04:00
Levi Neuwirth da8f6aeae4 fix(vterm): harden integrated Stage 2 behavior
Resolve post-main integration drift in authenticated routing, terminal view projection, Lua installation, and inherited acceptance callers. Preserve the terminal statusline provider alongside the landed Themes provider and record the final Stage 2 gate evidence.

Co-authored-by: OpenAI Codex <codex@openai.com>
2026-07-21 21:38:08 -04:00
Levi Neuwirth 99cd7ec240 feat: wire major modes through key dispatch
Store a detected major mode on each buffer and expose it through Lua.
Resolve mode-scoped bindings in dispatch, describe-key, and help links,
including exact encoded mode context after entering the help buffer.

Initialize modes once at buffer load, preserve explicit overrides and
clears across switches, and publish the mode through a per-window
statusline provider. Add daemon acceptance for the complete mode lifecycle.
2026-07-21 20:25:48 -04:00
Levi Neuwirth 0ddff24589 Merge canonical main into vterm-tui
Integrate config-registry and handoff updates landed after the Stage 2
framing branch was cut.
2026-07-21 20:18:53 -04:00
Levi Neuwirth dc9225778a test(vterm): prove Stage 2 TUI integration
Add cross-surface Lua, shared-view, clipboard, authenticated routing,
BEL, resize, and real-host PTY acceptance. Ensure terminal-local keymaps
run before raw child transport and document the criterion-to-test map.

Co-Authored-By: Claude <noreply@anthropic.com>
2026-07-21 20:16:23 -04:00
Levi Neuwirth 0a846d91ce feat(vterm): bind exact frontend terminal contexts
Resolve terminal commands and buffer switches against the authenticated invoking
frontend, publish copied selections to that frontend, and wire daemon rendering,
resize, focus, paste, bell, and detach lifecycle through exact view identities.

Co-Authored-By: Claude <noreply@anthropic.com>
2026-07-21 19:20:00 -04:00
Levi Neuwirth 7c3953563c feat(vterm): add strict Lua and daemon foundations
Install strict owned terminal specification parsing, fresh global state tables,
default-name uniquification, durable view/controller lifecycle, and the builtin
terminal command/statusline surface. Route daemon key and mouse input by the
authenticated source and add non-replaying per-frontend BEL baselines.

Co-Authored-By: Claude <noreply@anthropic.com>
2026-07-21 19:10:45 -04:00
Levi Neuwirth 1b32f81033 feat(vterm): establish Stage 2 view authority contracts
Add exact frontend/window/buffer view identities, logical-cell selections,
durable controller ownership, lifecycle cleanup, default-name uniquification,
and a nested authenticated interactive-command origin shared with Lua. These
contracts let the terminal core and TUI lanes proceed without inventing
parallel state.

Co-Authored-By: Claude <noreply@anthropic.com>
2026-07-21 18:56:15 -04:00
Levi Neuwirth f86c966090 fix(config): reject wrongly-typed spec fields; make trim-on-save buffer-aware
Review round 1, findings 2-4 plus doc notes. Finding 1 landed in fd80bcb.

Finding 3 --- spec fields meaningless for the declared type are now
rejected. DEFINE_SPEC_FIELDS whitelists all nine keys for every type and
the kind parser only reads its own arm's fields, so
`{ type = "string", choices = {...} }` silently defined a string that
accepts anything (the author meant enum) and `min` on a boolean was
dropped. These are typo-shaped bugs the R50 whitelist structurally
cannot see: the key is spelled correctly, it is on the wrong type.
`check_fields_relevant_to_kind` closes it with a pointed error naming
the misplaced field, and a companion test pins that each field is still
accepted where it belongs, including `min`/`max` on number as well as
integer.

Finding 4 --- the after_buffer_removed purge had no end-to-end test.
Every existing test called ConfigRegistry::remove_buffer directly, so
deleting the three lines wired into mod.rs would have left the whole
suite green. The new acceptance test kills a buffer through
pmacs.buffer.remove (the real remove_buffer_and_fire route) and asserts
the locals are gone; bite-verified by removing the hunk and watching it
fail.

Finding 2 (the half with a natural buffer) --- editing.trim-on-save is
now resolved against the buffer being saved rather than the global
chain. Reading globally meant set_local was accepted, stored, and
reported by describe, then never consulted: a pin the user believes in
that does nothing, which is the shape F1 exists to prevent. Two tests,
one for the override and one for the global fallback the change could
have broken; the override test fails against the old global read.

Both new save tests initially passed VACUOUSLY and were rewritten:
pmacs.editor.save() is the raw save, while buffer.before-save fires
inside the buffer.save COMMAND (default.lua:224), and save() no-ops on
an unmodified buffer --- so the original form asserted on a file that
was never rewritten. They now insert content to dirty the buffer and go
through pmacs.command.invoke("buffer.save").

The other half of finding 2 --- a per-buffer autosave.interval-ms is
semantically meaningless yet still accepted --- is recorded as a named
deferral proposing a define-time `scope = "global"` flag, alongside
deferrals for bound-parse field naming and StartupOnly reset symmetry.
Also recorded: interval_ms(1e30) now raises instead of storing a
nonsense float, an improvement but a real divergence from "the wrapper's
shape stays exactly as it was".

Doc: the module header cited framing revision 2; the shipped doc is
revision 3, whose corrections are what the code implements.

Gates: fmt, clippy -D warnings, --lib (1691), --lib --features crdt
(1865), lua54 backend, config_registry_acceptance (16), editops (72),
autosave (29), PMACS_REQUIRE_GPU=1 pmacs-gpu (109), and the full
workspace sweep (2806 tests, exit 0). git diff --check clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-21 18:29:18 -04:00