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* osc 7501: say what you are doing in somebody else's protocoluser2026-10-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OSC 5577 only works for programs that know slosh exists. The program status protocol is the same idea written down for everybody, by ghostty's author and implemented by ghostty and Rex, so a program that already speaks it needs to know nothing about us: printf '\033]7501;state=working:app=cargo:msg=YnVpbGRpbmc=\033\\' Implemented *as well as* 5577, not instead of it. 5577 is a two-way control channel -- buttons answer on the program's stdin, shaders are refused with a reason -- and 7501 deliberately is not, so neither absorbs the other. What 7501 buys is the programs we do not control. The scanner becomes one pass for four things: 5577, 7501, OSC 133 ; A and RIS. The last two are here because 7501 ties record lifetime to them -- a new prompt or a full reset is how a stale `working` dies without a heartbeat -- and because a pane should pay for that scan once. osc5577_fn gives way to osc_scan_cbs_t. Reports are all-or-nothing, which is the spec's rule: no state, an unknown state, a broken limit, base64 that will not decode, a control character in decoded text or a malformed id discards the whole report rather than writing a partial one. A malformed *pair* is skipped and the rest parsed. A pane keeps up to PANE_PS_MAX records with LRU eviction, and composes the one line it has from them by precedence -- blocked, error, done, working, idle -- resolving `app` from the nearest ancestor that has one, the way the hierarchy is allowed to mean something. It lands in the slot 5577's `status` already had, because every reader of a pane wants "what is this doing", not "which protocol said so"; `panes` reports program_state, program_kind, program_app and progress beside it, with -1 for a progress nobody reported, since a bar drawn at 0% says something false. The feature-detection reply is rate-limited here. Note for the next re-vendor: upstream lib-vt implements 7501 too, newer than our pin, and answers the support query itself through write_pty without rate-limiting it. See "What upstream did" under D1 in DESIGN.md before swapping this half of the file for GHOSTTY_TERMINAL_OPT_PROGRAM_STATUS.
* tab bar: a sidebar that fits the terminal, and gives up the edge lastuser2026-10-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `tab_bar_width` was a reservation: the configured columns came off the screen whatever the screen was, and the only fallback was all the way back to the top row. On a narrow terminal that is chrome displacing the thing it is chrome for, and the jump to the top moves every target you were aiming at. It is a ceiling now. app_tab_bar_cols takes the app, because the answer depends on the terminal and not only on the config: held to the columns left after a pane's collapse width, and to a third of the screen, and narrowed rather than dropped. TAB_BAR_FIT (14) is the narrowest width this code will invent on its own -- a config that asks for less is taken at its word -- and 0 means there is no room for a sidebar at all, which is the one case that still falls back on top. Height counts too, which it did not before: a sidebar spends a row per tab, so a wide but short terminal runs out of list before it runs out of screen, and a tab with no row is not clipped, it is unreachable. tab_bar_min_rows is that floor. Not when the top strip could not seat them either -- moving them would gain nothing, so the side you configured stands. All of it is re-derived per frame, like the layout, so a resize moves the bar and nothing remembers that it did. test_tab_bar also stops depending on where the suite is run from. An unnamed tab borrows the basename of its focused pane's cwd, so eight checks read `tests` under `make test` (which cds there) and `slosh` from the repository root, where they failed. They are about padding, alignment and the index, not about that derivation, so they name the tab first -- by id, since `set-name` takes 0 for the focused *pane* only. 147 checks, green from either directory.
* theme: the busy spinner is its own colour (tab_status_spinner)user2026-09-22
| | | | | | | | | | | | | It was drawn in tab_status_busy, the colour of the words it sits beside, which made one decision out of two. The words have to stay readable at a glance and a mark does not: a theme may well want the glyph loud and the text calm -- or the text in the accent and the mark a quiet dot -- and with one entry neither is available without moving both. Unset it follows tab_status_busy, derived after it and from whatever that resolved to, named or derived, so nothing changes for anyone who does not ask and no theme in contrib needs a line. `--dump-theme` writes both, like every other colour the compositor draws.
* sidebar: room for the spinner, by default (tab_bar_padding 0 1 0 2)user2026-09-22
| | | | | | | | | | | | | | | | | | | `│⠋bash: cd` -- the mark landed in the one column of left padding there was, so it ended up welded to the first letter of the status. The rule was "the mark takes a column the padding was already holding blank", which is right about not reflowing and wrong about there being enough of it. So the mark takes the *first* column of the indent and whatever is left over is the air after it, and the default indent is two columns instead of one. One column is still available -- `tab_bar_padding 0 1` -- and now means the squashed look on purpose rather than by default; three gives two spaces; zero still puts everything against the frame. Nothing reflows when a program starts or stops working, which was the point of taking a column that was already blank. The labels and the tab numbers move with it, because the indent is the strip's and not the status's -- a status still starts in the column its tab's name starts in, which is the rule the leading space existed for in the first place.
* osc 5577: `busy`, and a sidebar that shows it (busy_mark)user2026-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A status is a line of text, and a line of text cannot say whether it is still true. "building 3/7" reads exactly the same while it builds and ten minutes after it stopped, which is the one thing somebody reading it from another tab wants to know -- and the only workaround available to a program was to write the answer into the words and keep rewriting them. So `busy`: printf '\033]5577;1;status;make test\033\\' printf '\033]5577;1;busy;1\033\\' ... printf '\033]5577;1;busy;0\033\\' A flag of its own rather than a field of `status`, because a status is the *whole* payload after the verb -- `status;a;b;c` has always been the text "a;b;c" -- so anything added to that line would change what every existing sender means, including the five pi extensions D1 promises byte compatibility to. Orthogonal, so a program can leave one line up and toggle the other; anything but 0/false/no/off is on; `clear` takes both; and a pane whose program has gone is never busy, whatever it last claimed, because a spinner turning under a dead tab is a lie you keep looking at. In a sidebar the row turns `tab_status_busy` -- the theme's accent, derived like the other status colours, so no theme needs a line -- and takes a spinner in the column `tab_bar_padding` was already holding blank, so nothing reflows when a program starts or stops working. `busy_mark` is the frames, separated by spaces: one frame is a static mark and costs nothing, several make it turn, and only then does the session keep a frame clock -- via the same `animating` flag an animated shader uses, so the cost lands only while such a row is actually composed, and `""` drops the mark entirely and leaves the colour to say it. The frame is a pure function of the clock, like every other pulse here, so two clients attached to one session show the same one. `panes` now reports `status` and `busy`, which is the scriptable half of the same fact: what a pane says about itself, without reading its screen.
* sidebar: air inside it, the way panes have padding (tab_bar_padding)user2026-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `padding` is a pane's: the ring between a frame and the text it holds, in rows times gap_aspect so a `1` looks square around a block of prose. Handing the same knob to the sidebar looked tempting and is wrong twice over. The sidebar is chrome, not a pane, and its width is fixed by tab_bar_width -- so `padding 1` would quietly eat four of a sixteen-column strip (two cells a side, aspect included) and shorten every tab name, because somebody wanted their terminal text to breathe. And its two axes are not one idea: the columns are an indent for labels, the rows are air above a list. So tab_bar_padding, its own knob in the family the rest of the sidebar's air already lives in (tab_bar_pad, tab_gap, newtab_pad), taking the same 1/2/4 CSS-order values as `padding` -- one reader for both, so they cannot drift into meaning different things -- but counted in cells. The default `0 1` is what the sidebar already drew: that one column is where every label's leading space has been hard-coded since the sidebar existed, and moving it into a setting is what makes `tab_bar_padding 0` possible at all -- names flush against the frame, which was not previously a thing anyone could ask for. The statuses, the `+ new tab` row and the pane count follow the same indent, since they were each carrying their own copy of that space. It is air *inside* the plate: a tab's fill still spans the whole row and the whole row is still the hit, because the row is what you click and a highlight that stopped short of the frame would read as a highlighted word rather than a chosen row. The bottom rows are given up when the strip is short of them, like every other piece of air in here. tab_bar_pad is the older name for the top component alone. It still works, still means exactly that, and wins where a config writes both -- it is the more specific of the two. The dump writes tab_bar_padding and mentions it.
* sidebar: align the numbers by defaultuser2026-09-22
| | | | | | | | | | | | | | | | | | | The knob landed defaulting to "prefix" on the grounds that it is what the strip has always drawn -- but the strip is not what this is about. A sidebar row is wider than the name on it, and `1:api` spends the first two or three cells of every row (three or four once you have ten tabs) on a number nobody reads until they reach for C-a 2, pushing the names in by a distance that depends on how many tabs are open. Right-aligned, the names start where the statuses under them start and the numbers make a column of their own. `tab_bar_index "prefix"` is still there and unchanged, and the top strip is unaffected either way -- it ignores the setting, having no far end to align against. The tests that used `1:` as the anchor for "where a tab's name starts" now anchor on the name, which is what they were about; two new ones cover the default and the prefix form explicitly, so neither mode is tested only by being the default.
* sidebar: the tab number at the far edge (tab_bar_index)user2026-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `1:api` puts a number at the start of every row, and in a sidebar that is a column of digits in front of the thing you are actually reading -- the names start one, two or three cells in depending on how many tabs you have, and the numbers are only wanted at the moment you reach for C-a 2. tab_bar_index "right" moves them: │ tests 1 │ │ 1:tests │ │ verylongproj 2 │ vs │ 2:verylongproje│ │ api 3 │ │ 3:api │ Every name starts in the same column and the numbers line up in one of their own, which costs a column of sidebar and buys the list a shape. "prefix" stays the default, because it is what the strip has always drawn and the strip is where most people meet it. Sidebars only, and not by omission: a tab in the top strip is exactly as wide as its label, so there is no far end to align against and a number floating after a name it does not belong to would be worse than the prefix it replaced. The setting is ignored there rather than half-honoured. A row too narrow to spare the columns (under the number plus five) also keeps the prefix, since the name is the part you came for, and the rename editor keeps the whole cell as it always did. A name long enough to reach the number stops one cell short of it, because `verylongproje2` is a tab called verylongproje2 as far as any reader can tell. The cell comes back as padding, so the plate is unbroken and the hit is still the whole row -- clicking the number is clicking the tab, and the number brightens with the label under the pointer rather than leaving half a row lit. The bell mark keeps its place between them, budgeted first as before, so a long name cannot eat either of the two things that are not the name.
* tabs: idle tabs you can actually read across the roomuser2026-09-22
| | | | | | | | | | | | | | | | | | | | | | Seen next to the accent, the first plate was too polite to do the job it was added for: a 30% lift off the background under labels in the same #45454a the idle frames use. From another monitor the strip still read as one dark band with a blue block in it. Both ends move. tab_idle leaves the ambient chrome grey and becomes #8a8a95, because a tab you are not in is a place to go and has to be legible at a glance, where a dimmed pane border only has to be findable. The plate follows it to 43%, which is not a taste constant but a contrast ratio: the same step taken from a dark background upward and a light one downward lands at about 1.9:1 either way, so paper's #bdbebe on near-white and the default's #3b3b40 on black are the same amount of plate. The six themes in contrib named their idle tab colour as their frame grey, so each gets the same move in its own family -- 40% of the way from that grey to the colour the theme writes text in -- and their plates follow by derivation: amber #a67c26, mono #909090, paper #666a6e, phosphor #4a9c5d, slate #70789c, sl0p the house #8a8a95. Nobody who named a colour loses it; the derivation only ever fills in a theme's silence.
* tabs: a plate under the ones you are not in (tab_idle_bg)user2026-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | The active tab has been filled with the accent since the strip existed; every other tab was words on the background. That leaves the strip with one shape on it and nothing to compare it against -- where a tab ends, how far the row you are about to click reaches, and in the sidebar which rows are tabs rather than statuses, all had to be read off the text. tab_idle_bg fills them. Barely off the background and in the label's own grey, because this is not a second highlight: it gives a tab edges, and it gives the accent something to be brighter than, which on a strip of short labels is most of how the eye finds the tab it is in. Hover keeps it for the same reason the active tab keeps its fill -- losing the plate under the pointer would read as the tab going away -- so hovering still lands on the text, and the bell mark sits on the plate rather than punching a hole in it. Derived a third of the way from default_bg to tab_idle when nobody names it, the same bargain tab_status_fg and tab_status_stripe already make: both ends are colours every theme in contrib defines, so each gets a plate in its own family -- paper lightens, phosphor greens, mono stays grey -- without a line added to any of them. Naming it wins, and naming your own background is how you ask for the bare tabs back. The `+ new tab` button and the gaps between tabs stay unpainted: the button is the one row in the list that does not mean "go here", and tab_gap is air between plates, which is what makes them read as separate tabs at all.
* sidebar: air between tabs (tab_gap)Peter Geissler2026-09-20
| | | | | | | | | | | | | | | | | | A tab carrying three rows of wrapped status and the tab under it carrying three more read as one column of text: the labels are in there, but the list has stopped looking like a list. tab_gap is the blank rows between them, 0 by default, which is exactly what the sidebar has always drawn. It is the space *between* tabs and nothing else. Above the first tab is tab_bar_pad's and before the button is newtab_pad's, so the gap is applied before each label except the first and none of the three is ever paid twice. Given up a row at a time when the list is short of room, ahead of every label and the button, which is the same order the pad and the statuses already follow: a gap that pushed a tab off the bottom would be spacing costing you the thing it spaces. Paint rather than layout, so tuning it repaints without reflowing any pane. Sidebars only -- the top strip is one row, and the space between tabs there is the label's own padding.
* sidebar: a status can have more than one row (tab_bar_status_lines)Peter Geissler2026-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sixteen cells is not enough for a sentence, and a sentence is what a pane has to say: "add a summary…" is most of a status and none of its meaning. tab_bar_status_lines 3 word-wraps instead of cutting, and the same column carries forty-eight cells rather than sixteen. Wrapped, the rows under a tab stop being a list of panes and become a paragraph each, so the shape no longer says where one pane's status ends and the next begins -- both are italic text down one column. Alternate panes are drawn on alternate bands to say it instead: tab_status_stripe, derived from the theme like tab_status_fg, so a theme that has never heard of any of this still gets a band in its own family. Nothing is painted at one line, where there is no ambiguity to resolve and a band would take a translucent terminal's background away for nothing. 1 is the default and is the old behaviour exactly, down to cutting at the column rather than the last word before it: with no next row to move the word to, breaking early would spend cells on nothing. The reason to prefer a word boundary only exists once there is somewhere for the word to go. Rows count against tab_bar_status as before, so wrapping trades panes for words within the same allowance, and the allowance itself still gives way to the tabs. A status that will not fit whole is dropped whole and reported with the ellipsis, rather than shown as a fragment that reads like the whole thing. Every row of a status is the same `find:` door. tabstatus's buffer goes to 256 to match pane_status's own slot: at one line the drawing cut it anyway, but wrapped it is the whole string that has to survive the trip.
* sidebar: a talkative pane can no longer cost you a tabPeter Geissler2026-09-20
| | | | | | | | | | | | | | | | | | | Rows were spent in tab order until they ran out, so statuses from early tabs simply consumed the rows later tabs needed for their labels. Four tabs of three announcing panes in a sixteen-row terminal left the fourth tab with no row and no hit anywhere on the sidebar -- not clipped, unreachable -- and the new-tab button went with it. The list is the navigation and a status is an annotation on it, so the annotation is what gives way. Before drawing a tab's statuses, reserve a row for each tab still to come and one for the button, and allow the statuses only what is left over. The "and more" ellipsis is measured against that allowance rather than the cap, so a list cut short by the height still says it was cut, the same as one cut short by the setting. The pad is deliberately not reserved: it already gives itself up a cell at a time, which is the same order of surrender -- spacing, then extra statuses, then statuses, never the thing they are about.
* tabs: air before the new-tab button, and the option to do without itPeter Geissler2026-09-20
| | | | | | | | | | | | | | | | | | | | | The `+` is the one entry in the strip that does not mean "go here", and it sits at the end of a list where every other entry does. Flush against them it is what you hit when you meant the last tab -- most easily in a sidebar, where the target is the full width of the row and the pointer only has to be one row low. newtab_pad is the nothing in between: blank rows in a sidebar, blank columns on top, one by default, which is enough to make the slip a miss. It is paint rather than layout, like tab_bar_pad: the panes' rectangle is the same at 0 as at 5, so tuning it repaints without reflowing anyone. And it is given up before the button is -- a strip short of room drops the spacing one cell at a time and still draws what the spacing was protecting, because spacing must never cost you the thing it spaces. newtab_button false removes the button outright, for people who make tabs from the keyboard and would rather have the row (or the columns) back. Only the place to click it goes: the chord and the palette entry still work. Setting newtab_mark "" already did this by omission; this says it on purpose, and says it in --dump-config.
* sidebar: a status colour mixed from the theme, not the chrome's flat greyuser2026-09-10
| | | | | | | | | | | | | | | | | | tab_status_fg defaulted to the ambient grey on the argument that the slant already carried the distinction. True, and it looked it: the frame, the inactive labels, the pane count and the statuses were one colour, and the liveliest thing in the sidebar read as furniture. It is now 40% of the way from tab_count to tab_hover -- not the grey of the chrome round it, not the full accent it would shout in. Derived the same way rather than picked, so it lands in each theme's own family: a monochrome theme mixes two greys and stays monochrome, phosphor stays green, amber stays amber, and none of the seven in contrib needs a line adding to it. That the mix cannot invent a hue is the same argument the italic rests on, so both signals survive a colourless palette. tab_status_bg is still unset: a band is opt-in, and none is what a translucent terminal wants.
* sidebar: statuses wear italic instead of an indent, and can wear colouruser2026-09-10
| | | | | | | | | | | | | | | | | | | | | | | Three columns of indent is a fifth of a sixteen-column sidebar, spent saying 'this belongs to the row above'. The slant says it in none: a status now starts in the same column its tab's name starts in, and is set in italic. That also survives the monochrome themes in contrib, where a colour-only distinction would have had nothing to spend. tab_status_fg / tab_status_bg are there for themes that do have colour to spend. The fg follows tab_count when a theme does not name it -- the same declared/derived split apply_scrolled makes -- so the six themes in contrib get coherent status rows without a line added to any of them. The bg is unset by default, because a band is opt-in and 'none' is what a translucent terminal wants; the row is padded so a band that *is* set covers the row rather than the words on it. Two things fell out. The padding loop existed three times and is now pad_cells. And cb_color wrote #000000 for an unset colour, so quietly pinned attach_bg -- 'gray ink on the terminal's own background', says its comment -- to a black band. Unset colours are now written commented out, the same trick the states block uses for what it wants re-derived rather than pinned.
* sidebar: the new-tab button says what it is, given a row to say it onuser2026-09-10
| | | | | | | | | | | | | | | The mark went bare because in the strip it sits at the end of a row of tabs, where the company it keeps says what it does and columns are scarce. A sidebar row is neither: it is a row of its own with columns to spare, and a lone glyph on it reads as decoration -- the hint under the pointer cannot help, since you have to suspect a thing is a button before you hover it. So with the room it reads '+ new tab', in the word hint_for already gives this action rather than a second name for the same thing, and falls back to the bare mark when the sidebar is too narrow. The strip is untouched. The row fills and hits like a tab's, so hover and the drop-target fill cover the row rather than the word on it.
* sidebar: tab_bar_pad back to 0, now that the frame is the separationuser2026-09-10
| | | | | | | | | | | | | The row of air was standing in for a boundary the sidebar did not have. tab_bar_chrome gave it one, and a blank row inside the frame on top of that reads as a gap nobody asked for. The knob stays for a bare sidebar (tab_bar_chrome false), and for anyone who wants room at the top for a borderless window's own buttons. With the default at 0, Y0 in the tests is the unpadded first row and a pad of N moves the list exactly N rows down from it, which is what the pad test now says rather than carrying the default around in its arithmetic.
* sidebar: framed like a pane, and in compact mode framed *with* it ↵user2026-09-10
| | | | | | | | | | | | | | | | | | | | | | (tab_bar_chrome) A list of tabs sitting in bare columns beside a framed layout reads as text that wandered in from outside. So the sidebar gets a frame of its own -- and in compact mode not its own: its inner vertical lands on the tab area's ring column, and because the lines are strokes that union with whatever is already in the cell, the corners become tees without anyone computing a junction. The sidebar and the layout come out as one figure, which is the whole point. Classic mode gets a free-standing frame in the idle frame colour, rounded or square with everything else. The frame costs a column each side and a row top and bottom, taken from the sidebar's own budget -- and dropped entirely, before the list is, when the sidebar is too small to afford it: chrome must not displace what it is chrome for. The content box (cx/cw) now feeds the labels, the status rows, their hits and the truncation budget alike, so the frame cannot disagree with where the clicks land.
* docs: the tab bar's new shapes, written downuser2026-09-10
| | | | | | | | | | | | | A 'The tab bar' section on the panes page: the sidebar, its four knobs, the status rows under each tab, and the borrowed directory name for unnamed tabs. The config page's knob table learns the tab_bar_* keys. scripting.md and the driving-slosh skill stop underselling the status verb: it was documented back when the pane's own frame was the only place a status could appear, which made it decoration. With the sidebar it is how a pane reports progress to somebody working in another tab -- so say that, and say to keep it current and clear it when the work is done.
* docs: big overhaulPeter Geissler2026-09-02
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* docs: less wordyuser2026-08-29
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* README/docs: stop leaning on the aside dashuser2026-08-27
| | | | | | | | | | | | | Some 230 sentences hung their qualifications between dashes, and at that density the tic reads as the writing's signature rather than a tool it occasionally picks up. Each one is now the punctuation the sentence actually wanted: a colon where the aside defines, parentheses where it whispers, a comma where it barely pauses, a full stop where two thoughts were pretending to be one. Definition lists and reference tables take colons throughout. Two double hyphens remain on purpose, both literal: the argv separator in a shell example, and a table cell that means 'takes nothing'.
* README/docs: spell the dash --, as the rest of the tree doesuser2026-08-27
| | | | | | | | | | | Every C comment, commit message and generated config in this repo writes the aside dash as a spaced double hyphen; the Markdown alone used U+2014, some 220 of them. One spelling, and the ASCII one -- the prose now matches the code it documents. Mechanical (every occurrence was the spaced form, checked including the one inside a code fence, where it was comment text), so the words themselves are untouched.
* compact: shared borders instead of gaps (D23)user2026-08-25
| | | | | | | | | | | | | | | | | | | | | | One knob, `compact true`: panes pack flush against 1-cell divider lines that meet in real junctions, one frame rings the tab, and a pane's title rides the line above it -- a boundary costs one cell where the default look spends four. The lines are strokes: each write says which edges of its cell it needs, unions with what is there, and never clobbers text, so ├ ┬ ┼ fall out of paint order and the focus ring recolours without inventing arms. The divider *is* the gap (eff_gap, one answer for the layout, split_fits and the resize clamp), so gap hits, hover hints and corner drags work unchanged. Interior edges give up click-to-split -- one cell cannot hold two verbs -- and a pane's status row overlays its last content row. Floats, zoom and the D6 flatten keep classic frames through place_hidden: zero new tree cases. Underneath it, mode or no mode: a border drag now moves the boundary on that side, converted on the first motion so the press that never moves keeps its old meaning -- the handle's click still splits, the rim's is still deliberately nothing (drag.rim). Which is also the fix for gap 0, where flush panes leave no gap cell to grab and the resize gesture had silently vanished with it.
* slosh: put-away panes are miniature pane framesuser2026-08-21
| | | | | | | | | | | | Brackets were tried and still read as text. Each min-bar entry is now a three-row chip wearing a real pane frame -- the same corners, because a frame is what a pane *looks like* in this program, so a shrunken one reads as exactly what it is: a pane, clickable. The put-away mark rides inside each chip and the lone legend is gone; a rung pane's bell mark keeps its own colour inside the frame; hover lights the whole chip and the whole chip is the hit. The bar costs three rows instead of one while anything is minimised (and nothing when nothing is), which is what an affordance that works is worth.
* slosh: minimized panes wear buttons in the stripuser2026-08-21
| | | | | | | | | | | A row of dim bare names read as a caption, and nobody clicks a caption. Each entry now wears square brackets -- [▬ name] -- because that is what clickable already looks like in this program: [re-run], [close], the buttons a pane's own row offers. The put-away mark rides inside each entry instead of standing at the head of the row as a legend: a legend explains the row once, a mark per entry says what each button is. A rung pane's bell mark keeps its own colour inside the brackets, and the whole bracket is the hit, as one geometry demands.
* slosh: M10c, the memory -- floats survive being written downuser2026-08-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A dumped session quietly re-tiled its floats, which was the one data-loss gap left in D22. dump-layout now records `floating=true x= y= w= h=` -- the *wanted* rect, because intent is what survives a session and the next screen's layout clamps it like any frame -- layout files declare the same (linted: floating is a bool, x/y/w/h mean nothing without it), and a file whose every pane floats self-heals through ensure_tiled: the top float lands, the same rule closing the last tiled pane follows, no lint required. save-workspace inherits all of it from the shared dumper. `float` over the API takes x/y/w/h and then *places* rather than toggles -- a placement is a statement about where, not about whether -- floating the pane first when it is tiled, re-placing when it already floats, with omitted fields meaning "keep". The intent is stored exactly as asked: the write-back rule is for hands, whose drags need the clamp to agree with the eye; a script means what it typed. And kitty graphics respect the stack. The cell compositor gets occlusion free from paint order, but placements are sent after the diff and would paint an image straight over a float covering it. Each pane's placements are now clipped by the float rects above it -- every float for a tiled pane, the higher-raised for a float -- cropping what one clean edge can express (the pane-edge source-rectangle arithmetic aimed at another clipper, including from the top and left, where the source origin moves and the sub-cell offset is consumed) and suppressing what it cannot: a strip across the middle or a corner overlap leaves a shape one placement cannot say, and the image returns whole when the float moves. No z= needed -- clipping is the z-order, since nothing is ever allowed to overlap. D22's "still owed" paragraph is paid and rewritten; M10 is fully checked.
* slosh: floating panes and the drop grammaruser2026-08-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A pane can float: lifted out of the layout, drawn over the tiled panes and under the modals, freely moved and shaped. The model is a flag and a rect on the leaf, exactly like `minimized` -- the seat in the tree is kept, layout skips it, the siblings absorb its share, and un-floating returns it home. The drawn rect is the wanted one clamped to the tab every frame, never written back, so a terminal squeeze round-trips exactly; an explicit move or resize *does* write back, because the hand is the author of the intent. Floating pops the pane to the centre: the jump is what says it happened. Painted after everything tiled, so the hit list -- searched backwards -- resolves an overlap to the float you can see: the z-order and the click order are the same list. It casts a shadow (float_shadow, one number), and `floating` joins the states table above `unfocused`, so a float is never dimmed as merely-unfocused. The hands: the title moves it, any other border resizes it (a bottom corner on both axes; the grabbed edge pins at walls and floors, never sliding the window), H J K L move a focused float, the =/+ key grows it about its centre, `-` shrinks it (its split was a refusal anyway), and hovering shows which edges a grab would take, from the same derivation the press uses. Equalize moved to `0` to free the key; `C-a f` floats (finder went to `s`, where it reads as search); `C-a F` opens a new floating shell -- the throwaway terminal; the function row f1..f12 became nameable in configs along the way. Guards throughout: the last tiled pane cannot float or minimize away, closing it lands the top float, splits are refused with their own words, floats are not swap targets. Dropping got a grammar: while a pane is carried, the pane under the pointer subdivides into a swap centre and four edge bands meaning "insert me beside this pane, on this side" -- detach_leaf + place_beside, the surgery cross-tab moves already had. Bands are thirds (the first map of quarters showed the swap owning half of each axis), the hovered band fills the half the drop would hand over, the release resolves against the painted frame's hits so it cannot disagree with the fill, and a drop between siblings along the axis is a reorder that always fits -- refusing it was refusing the most ordinary drag there is. Also: rename-pane/rename-tab as palette actions (renaming was a double-click and nothing else, the one verb the palette could not reach), and C-u clears the rename editor like it clears the picker's query. Design log in PLAN-FLOATING-PANES.md; to fold into DESIGN.md as D22/M10-11.
* slosh: rename the project from sl0pptyuser2026-08-18
| | | | | | | | | | | | | | | | | | | | | sl0p + pty was error-prone to type and the zero made it worse; slosh (slop + sh) is one syllable, impossible to typo, and slosh.foo is ours. Mechanical rename everywhere it appears: binary, env vars (SLOSH, SLOSH_SESSION, SLOSH_BIN, SLOSH_CONFIG), socket dir (/tmp/slosh-<uid>, $XDG_RUNTIME_DIR/slosh), config path (~/.config/slosh), header guards, src/sl0ppty.h -> src/slosh.h, contrib/sl0ppty-dev -> contrib/slosh-dev, the driving-slosh skill, docs and tests. The sl0ppi fork references and the sl0p theme stay: one is history, the other is the brand. The rename surfaced a latent bug in test_osc5577: the hello-reply answer always appeared on screen twice (ECHOCTL echo plus cat -v), but a seven-character implementation name happened to wrap the second copy across the 60-column boundary, so counting substrings in wrapped text found one and passed for the wrong reason. A five-character name moved the wrap and exposed it. The loop guard itself is correct -- with echo off before the request there is exactly one reply -- so the test now counts on de-wrapped text and tolerates the pane's own echo.
* sl0ppty: aim the top handle at the middle, and stop ruling through the rowuser2026-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two faults that fed each other, and only the second one made the first visible. The handle went to the **widest** free run of the top row. A centred title leaves two runs of nearly the same width, so a one-cell difference nobody can see threw the handle out toward a corner: on a 116-column pane whose row middle is 60, it sat at 85. Placement should be stated in terms of where the thing wants to be, not of the leftovers it is allowed to occupy -- so it now aims at the middle of the row and slides into the nearest run that is free. Nothing in the way: centred, like the other three sides. A title holding the middle: hard against the title, where the eye already is. That same pane now puts it at 64. The armed edge also ruled the heavy line straight across the whole border, over the pane's name, its buttons, its scroll indicator and a dead pane's epitaph. The row went unreadable exactly while the pointer was on it -- and the title the handle had just been placed beside was wiped, which is what turned a merely-off position into an apparently random one. Each cell of the edge is now painted only if the hit list says the edge still owns it: the same question the handle asks, and the one the click will ask. The epitaph had to start claiming its cells to take part. It answers `panestatus:` and does nothing when clicked, because an epitaph is not a button; what it buys is that ` exited: status 3 ` survives a hover over the border it lives on, next to `[re-run]` and `[close]`, which already survived because they were buttons. Verified: `make retest`, **1877 checks measured**, all green. Four new: the handle is centred on the row when the row is empty, sits against the title when the title holds the middle, and the armed top edge leaves both the name and the three buttons legible. Live on a 116x36 pane, hovering the far left of the top row -- deliberately the rim, so this is the first stage doing all of it: ╭━━━━━━━━━━━━━━━━━━━ sl0ppty ███▲███━━━━━━━━━━━━━━━━━▬ □ ✕ ╮ and on a dead pane, hovering the bottom handle: ╰ exited: status 3 ━━━━━━━━━━███▼███━━━━━━━━[re-run]━[close]━╯
* sl0ppty: the split arrow belongs on the buttonuser2026-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The arrow rode the middle of the dashed boundary line, which put the two halves of one message in two places: the handle said *press here* and a glyph out in the middle of the pane said *this is what happens*. It also meant the direction was unreadable until you were already on the target, since the dashed line is stage two of the hover. So the arrow moves into the handle and the boundary line goes back to being a plain boundary -- which is the honest shape for it anyway: it is the *edge* of the pane you are about to make, and an edge has no middle worth marking. The handle is now one object that explains itself, and because the handle is drawn from the first stage, brushing any part of an edge tells you where its button is and which way that button splits, without previewing a boundary nobody asked about. Knocked out with ATTR_INVERSE rather than drawn in a second colour: the bar is solid `guide`, so a `guide` glyph on top of it would have been invisible, and inverting gets contrast that follows whatever colour the theme sets for no new knob. Along the handle the arrow sits in the middle, where the pointer is aiming. Across it -- a distinction only the upright pair has, being the two that grow a second cell -- it sits on the edge's own cell rather than the one over the content, because it marks a boundary and the boundary lands on the frame. Verified: `make retest`, **1873 checks measured** (`test_split_ux.py` 100 of them), all green. The test that pinned the arrow to the dashed line is now the test that pins it to the handle, on all four sides, plus one that it is legible from the first stage with no boundary drawn. Checked live on a 116x36 pane: `◄█` at column 2 and `█►` at column 117 on the middle row of their bars, `━━━███▼███━━━` on the bottom border's single row, and -- the case that shows why this is worth it -- hovering the *far left* of the top row draws `███▲███` at column 85, where the handle actually is, having dodged a centred title. A note on the two commits before this one: their messages quote 1801 and 1807 checks, which were carried over from earlier in the session rather than measured. The figure was 1865 at that point. The code and the tests were right; the numbers in those two messages were not.
* sl0ppty: a horizontal handle gets heavier, not talleruser2026-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | The armed handle grew by one cell into the pane on all four sides, which is one change on two axes and therefore two different results. A cell is about twice as tall as it is wide -- the fact `gap_aspect` exists for, and the one the split picker measures its longer side by -- so the extra column on a left or right edge read as a thicker line, and the extra row on a top or bottom edge read as a wall. It also spent a row of somebody's output to say something the glyph was already saying: `█` is the heaviest thing one cell can draw, and against `━` it needs no help. So only the upright sides widen now. A horizontal handle stays on its own row. That also removes its claim on a content cell, which is why the inner-strip hit is registered on those two sides only -- the paint and the hit still describe the same rect, which is the whole reason the guide registers what it thickens. Verified: `make retest`, 1807 checks, all green -- six new, pinning the asymmetry in both directions: the top and bottom handles occupy exactly the row their border is on, the left and right ones exactly two columns, and the inner column of each upright handle hit-tests as that border rather than as the pane. Measured on a live session rather than argued: hovering the bottom border of a 116x36 pane puts seven block cells on row 37 and no others, inside the `━` rule; hovering the left border puts them on rows 16-22 across columns 2 and 3.
* sl0ppty: the middle of a border is the button, not all of ituser2026-08-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clicking a pane's border to split toward it is the right gesture and was the wrong target. A border is the longest thing on the screen and it sits between two things you did mean to click -- a title, a gap, the pane beyond it -- so reaching a cell too far changed the layout, and the top row was worse than the sides: clicking a pane's header to focus it split it upward. So the target shrank. Each side carries a *handle* of three to seven cells in the middle, and only the handle splits; the rest of the edge is the *rim*, which arms the guide and does nothing when pressed. Three is the floor the pane buttons already settled on for the reason written there -- a one-cell target is a thing you miss with a mouse -- and seven is the ceiling, because a third of a tall pane's border is most of that border again and brings the accidents back with it. Hover now answers two questions in two stages, because they are two questions. Anywhere on an edge, the edge goes heavy and the handle thickens by a cell into the pane: that says where the button is, which is the thing you can no longer infer. On the handle, the dashed boundary and the arrow as well: that says what the click will do. The hint follows the same split, so sweeping an edge neither draws a boundary nor offers a split you cannot get from where the pointer is. Three things this had to get right. **The thickened handle is registered, not just painted.** The guide adds the hit for the inner strip in the frame that draws it, and reads the outer rect back from the hit list rather than recomputing it, so there is one opinion about where the handle is (D6). A handle you can see and cannot click would be worse than either mistake alone. **The top row cannot put its handle in the middle.** The buttons own its right and a centred title -- the default -- owns exactly the middle. The title winning is the existing rule, and it is what keeps a double-click rename from splitting twice on its way, so the handle is placed last, in the widest run of cells the row has left and nearest the middle among equals. A row with nothing left offers no upward split; its other three edges are unaffected. Each handle cell is then painted only if the hit list still agrees it belongs to the handle, so a block never lands on a pane's name. **The row keeps the drag and loses the split.** `title:<id>` takes no side now and `title:<id>:t` -- the handle -- carries one, which is why the press path reads the side out of the action instead of assuming it. Press-and-hold skips the dwell on a handle, where a press means something, rather than anywhere on an edge. Verified: `make retest`, 1801 checks, all green. Nine of them are new or rewritten: the two-stage guide, the caption belonging to the handle, the rim splitting nothing on any of the four sides, the top row's handle still splitting upward on a titled pane, and the rim of the top row not. Tests read the handle's cell out of the hit list (`Snapshot.handle`/`.rim`) rather than deriving the geometry, so a test cannot agree with a broken formula. Also checked by hand on a live session, which is where the placement rule earned itself: hovering the rim draws the heavy edge and the block and no dashed line, hovering the handle adds the line and the arrow, three clicks on pane headers split nothing, and on a pane titled `sl0ppty` the top handle lands to the right of the title and left of the buttons -- `drag to move · click to split up` at x=42, `drag to move` either side of it.
* sl0ppty: a dead pane says what it ranuser2026-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ``` │help: find a package to install `watch` with `cargo search cargo-watch` │ │ │ │[ran: cargo watch -x test] │ │[process exited: status 101] │ ╰ exited: status 101 ─────────────────────────────────[re-run]─[close]─╯ ``` `[re-run]` is one button on a pane whose program is gone, and nothing on the pane said what it would run. The command was never anywhere: not in the frame, not in the backlog, not in the exit note. Worst in a tab a project's layout built, where the command was never typed into that pane and so cannot be scrolled back to either -- which is now the common case, since that is what `open-workspace` does. So the death note gains a line above it. A pane running the session's shell has no command to name and gets the exit line alone, as before: `[ran: /bin/sh]` would be noise dressed as information. One note rather than two calls. `pane_note` puts a blank line either side of what it writes, so two of them would space the two halves apart as if they were about different things, when they are two facts about one run. Re-running keeps the previous run above it (D14), so the pair turns a pane you re-run into a log of what ran rather than a pile of identical epitaphs. Not put in the frame footer, which is the other place the question gets asked. It already carries the exit words and competes with the buttons for width, so a long command would arrive truncated in the one place that is always visible -- and the note is on screen anyway in the case that matters, because a pane whose program just exited is scrolled to the bottom. **Three existing tests were counting a string that now appears twice.** `DIES_CMD` is `echo mark-one; exit 3`, and they waited for `screen().count("mark-one") == 2` to mean "it ran twice" -- but the note contains the command, so every run now matches twice and the wait never finished. They ask `output_runs()` instead, which counts lines holding the marker that are not the `[ran:` line. Per line rather than by trimming the text, because every row still has the pane's frame border on the end of it. That is a fair correction and not a weakening: the assertion is still "the output appeared twice", which is what they meant. Verified: 56 checks in `tests/test_dead.py`, 1801 overall, all green. Three new: the command is named and sits *above* the exit line (asserted by row order, not by reading the two strings out of one screen); a pane with no command names none; and two runs produce two of each note. Then a real session, `command="cargo watch -x test"` with cargo-watch not installed, which is how this was noticed.
* sl0ppty: double-click a word to select ituser2026-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `pane_select_word()` was written and never wired to anything: no declaration, no caller, no way to reach it. This is the rest of it -- the gesture, the setting, and the tests. **The word is defined by what it stops at, not by what it is made of.** Anything that is not blank and not a listed separator belongs to a word, so CJK, accented letters and emoji need no table and come out whole; whitespace always separates, listed or not, because a double-click that selected the line would be a different gesture arrived at by surprise. Wide glyphs continue the run they are in rather than each being their own word -- otherwise every CJK character is a word. `word_separators` defaults to `"'`()[]{}<>;,|`, and what it leaves *out* is the decision: `/ . - _ : = @ # % ? & + ~ $` stay inside words, so a path, a dotted name, a snake_case identifier, a key=value pair, a URL and `src/app.c:1234` are each one thing you double-clicked to copy whole. `:` is the difference between copying an error location and copying half of one, which is why kitty keeps it too. The gesture reuses what selecting already has: the press starts a selection at the cell -- which anchors a drag out of the double-click -- then widens it to the word, and the release path that already copies a drag copies this. So the word *is* the copy, in the one place that rule lives, and the highlight is the copied span rather than an approximation of it. Tracked per cell as well as per pane, so clicking two different words quickly selects the second rather than everything between them. A program that asked for the mouse still keeps its clicks, with shift as the escape hatch, exactly as the drag has it. **One thing this needed on the way: quoted values were dumped unescaped.** The default separator set opens with a quote, and `cb_add(&b, "key \"%s\"\n", ...)` wrote it raw -- so `--dump-config` produced a file that no longer parsed, breaking the property the dump exists for. The escaping loop already existed inside `cb_chord`, for the same reason and with the reasoning written down; it is now `cb_qval`/`cb_qstr` and every string setting goes through it: the marks, `shell`, `editor`, `shader_dir`, `project_roots`, `project_layout`. Latent for all of those, load-bearing for this one. **And `--dump-config` does not do what four comments and the docs said it did.** It calls `config_dump_defaults()`: every setting with its *default*, never the value your config gives it. The function name was the honest one. Corrected in `docs/config.md`, `config/config.kdl`, `main.c`, `config.c`, `app.c` and the test's own docstring, rather than changing what the flag does -- starting a config from it is the documented use, and `--check` is what reads yours. There is no way to ask for the effective config; that is a gap, not a lie, and it can be a flag when somebody wants it. Verified: 22 checks in `tests/test_clipboard.py`. An error location, an identifier stopping at a bracket, a URL, a word inside quotes and a run of CJK; the highlight being exactly as wide as the copy; a separator, a blank cell and a single click each leaving the clipboard alone; two clicks on different cells not being a double; two slow clicks not being one; the separator set honoured from a config, including a quote and a backslash carried through KDL escaping; a word in a scrolled pane coming from the row on screen; and a mouse-tracking program keeping its double-clicks until shift takes them back. Three of those failed first because the test asked for the answer twice -- a second `worded()` call is a second pair of clicks -- and one because it mapped string indices to columns without counting wide glyphs as two.
* sl0ppty: `set-name target="pane"`, so a script can overrule a program's titleuser2026-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | A pane's name already outranks the title its program sets -- `pane_title` prefers the name while there is one -- and that is the whole remedy for a program announcing something it stopped meaning: an agent still spinning the summary of a task it finished, a build script that titled itself once. The remedy was reachable by double-clicking the title on somebody's screen, and from a layout file, but not from the socket, while `set-purpose` next to it has taken `target:"pane"|"tab"` all along. `target` defaults to `tab`, which is what this verb has always meant. Two verbs whose defaults differ is a smaller wrong than a verb that quietly changes its subject under scripts already written against it. The refusals say `no such pane` or `no such tab`, so a mistyped target shows up in the reply rather than as a label that did not move. The gesture now calls the same function, so the two ways in cannot disagree about where a pane's name lives -- there is a test that a name set over the socket is the name the double-click editor offers to edit. Verified: eight checks in `tests/test_pane_title.py`. A pane named while its program keeps setting OSC 2 titles keeps the name; clearing it hands the label back to what the program calls itself *now*; `id: 0` is the focused pane and leaves the other one alone; `set-name` with no target still renames the tab and leaves the pane's title alone.
* sl0ppty: workspaces, and layouts that write themselvesuser2026-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A **project** is a directory on disk. A **workspace** is the tab it occupies in a session. Two words because they are two things, and conflating them is how a session grows a second source of truth about what it is looking at. `project_roots "~/dev" "~/work" depth=2` is scanned for subdirectories holding a `sl0ppty.layout.kdl` -- or a `.git`, which is the project that has not said what it needs yet. Both markers, because a `~/dev` of forty checkouts and three layout files is a picker with three rows, and `C-a W` is how a project stops being the second kind. A directory that *is* a project is never descended into, so the walk stays off `node_modules` without anyone writing a rule about `node_modules`. `C-a w` is the third subject of the one picker (D19): the finder searches what this session has, this lists what is on disk, including the projects with no workspace open yet, which is most of them and the whole point. **Identity is the tab's `purpose`** -- `project:<name>.<hash8>` of the resolved path, the shape D3 already published -- so there is no second field to disagree with it, membership is a string comparison, and a dumped session restores it for free because a dump already writes tab purposes and applying one already locks them (D8). Hashed on the *path* rather than the name, so two worktrees of one repo are two workspaces, which is what they are. A tab whose layout gave it a purpose of its own keeps it and is simply not a member: overwriting a declared purpose is the one thing D8 forbids, and the reply counts the ones it left alone. **Nothing watches the filesystem.** The list is derived when it is asked for -- one `readdir` per root and two `stat`s per entry -- and an answer nobody remembered cannot be stale, which is a promise no watcher can make on a bind mount. The picker scans once as it opens, not per frame, because `draw_picker` asks for its rows every frame and a `readdir` per repaint is a filesystem walk at 120Hz. Opening is idempotent (`sl0ppi up`'s property): the same request twice is one workspace, focused, and the answer says which branch it took. Four things had to be true before `save-workspace` could exist, and none of them were. **A relative `cwd=` in a layout file now means that file's own directory** -- the rule `include` already followed for configs, applied to the other half of the same syntax. A project's layout could previously only name absolute directories, which are right on exactly one machine and wrong in a worktree of the same repo. **A dump can be asked for one tab, against a base.** `dump-layout` takes `tab`, `relative_to` and `suspend`. Writing it also turned up a bug: `dump_node` asked `cur(a)->focus` whichever tab it was writing, so a dump of three tabs restored the focus of one. **A dump records what a pane is *running*.** `label` only ever knew what a layout said, so a pane you split and typed `npm run dev` into had nothing to say for itself and came back as a bare shell -- which made arranging a project and writing it down two jobs instead of one. The kernel knows what the label does not: a pty has a foreground process group, and that group is by definition the job that owns the terminal, so the answer is read the way `live_cwd` already reads `/proc/PID/cwd`. Three things are deliberately not commands: a shell at a prompt (its group is the pane's own, and `command="zsh"` on every idle pane restores a session where each shell runs inside a shell), a background job (it does not own the terminal), and an ephemeral pane. A declared label still outranks a live process, because it survives the program exiting (D14) and re-saving must not degrade `npm run dev` into whatever the process tree looks like this minute. argv is joined with shell quoting, since `command=` goes through `/bin/sh -c`. **A pane from a split starts where the pane it came out of stands**, not where the server was launched. Wrong on its own, and it had been quietly writing an absolute path to somebody else's directory into every saved project. A saved project defaults to `suspend="commands"`: the pane running this morning's dev server is written asleep, because a *project's* layout is a statement of shape and a *session's* dump is a statement of fact. Over the API, replacing a layout that is already there is refused without `force`; from the keyboard `C-a W` replaces and says `replaced`, because a key cannot pass a flag and the file is committed text whose diff is the review. `--check` now holds a layout to the layout schema instead of answering with the name of the flag that reads one. `unknown pane property: cmd`, `split is cols or rows`, `purpose is ignored on a pane with panes in it` -- the mistakes a layout can make that still parses. The lists live beside `build_pane` and a test greps for every prop the loader reads, the arrangement that keeps `KNOWN_TOP` honest. **`C-a P` sets a pane's purpose**, a third subject on the editor the pane title and the tab label already share. A purpose is what tooling finds a pane by, and it could only be declared by a layout or set over the socket -- so every pane anybody arranged by hand had none, and a layout dumped from one was a shape with no tags in it. Typed by an operator it counts as declared (D8: "a layout or an operator"). Clearing one now *unlocks* it: a lock held over an empty string was the one state nothing could escape. `set-purpose` also reads `id: 0` as the focused pane now, which every sibling verb already did. Two gaps found on the way, both reachable only over the socket before: **`C-a X` closes a tab.** It used to be a side effect -- press `x` once per pane and the tab evaporates when the last one goes -- so four panes meant four presses and counting. It says how many panes went, since most of them were not the one you were looking at, and on the last tab it refuses and points at `q`: a key that closes a tab four times and ends your session the fifth is one you cannot press without counting first. No `✕` on the tabs, for the arithmetic that took the per-pane `+` away. **`scrollback` is a number we choose.** D4's "free from lib-vt" was true of the machinery and quietly false of the size: handed no limit, lib-vt picks its own -- 10,000 *bytes*, which measured at 622 lines of an 80-column pane, less than one `make` run. `scrollback` is lines, defaulting to the 10,000 every other multiplexer settled on, and `scrollback_bytes` is the ceiling it runs into, because either limit can be reached first and neither can see what the other depends on. Measured at 10,000 lines of styled output: ~6 MB at 80 columns (the ceiling never bites), ~15 MB at 200 (2% of the lines), ~32 MB at 400 (half of them). No `unlimited`, deliberately: the ceiling is per pane, and a negative is refused rather than wrapped into eighteen quintillion lines. Read when a pane is created, so it applies to the next pane you open -- same rule as `shell`, because shrinking a pane's history retroactively throws away output somebody is reading. `--project-root` was considered and dropped: the config is the one place projects are declared, and tests pin a config like every other config-driven feature. Verified: 1752 checks, all green. 90 in `tests/test_workspaces.py` (the two markers, depth without descending into a project, two worktrees as two workspaces, idempotent open, the honoured-purpose count, the save/close/open round trip byte-for-byte, the set-up-by-hand-and-write-it-down flow, the picker, and every verb's bare form); 53 in `tests/test_portable_layouts.py` (relative and absolute `cwd=`, text having no base, per-tab focus, the four `suspend` words, captured commands, an idle shell and a background job captured as nothing, spaces surviving the round trip, label precedence, and the checker's lists not going stale); 21 in `tests/test_purpose_editor.py`; 14 in `tests/test_scrollback.py`; 5 more in `tests/test_tabs.py`. `tests/test_osc5577.py` had a vacuous check: `\033` through the driver's unescaper is NUL + "33", so "a pane cannot relabel a declared purpose" passed without the sequence ever arriving. It uses `emit_cmd` now and has a positive control that the same sequence lands once the purpose is cleared. Three cheatsheet tests were pinned to terminal sizes that exactly fitted the old sheet, which four new bindings pushed past. They now ask for room; truncation has its own test.
* sl0ppty: `C-a Enter` splits the longer wayuser2026-08-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | One key for "I want a pane and I have no opinion about where". It cuts across the pane's longer side, so the two halves come out as square as the pane allows, and pressing it four times on a 100x30 terminal tiles the tab the way you would have done it by hand: a column, then rows inside the new column, then rows again, then a word saying there is no room left. "Longer" is a question about what you can *see*. A cell is about twice as tall as it is wide, so 80x24 is a wide pane (80 against 48) while 40x24 is not (40 against 48). `gap_aspect` is already this program's answer to how many columns a row is worth, so that is the number used rather than a second constant meaning the same thing -- and a config that says cells are square gets a square answer. There is a test at 74x44, the size where the two readings disagree: square cells split it into columns, the default splits it into rows. The fallback is the other half of "sensible". A pane that is wide but ten rows tall wants cutting across; if `split_fits` says that will not fit, the other axis is tried before giving up. And it says which way it went -- `split right` or `split down`, the same two words the border click already uses -- because one key that can do two things has to tell you which it did. **`split_fits` had a hole this action made obvious.** It only ever asked about the dimension being divided, so a pane four rows tall on a short terminal "had room" for two columns: the width was fine, and the two panes it produced were immediately collapsed into a list by the layout. The border was offering that, and both split keys were doing it. It now also requires the axis it does *not* divide to clear the floor, because splitting cannot improve that one -- the same hole `layout_node` closed at the leaf, one level up. On a 100x8 terminal all three now say "no room to split" instead of undoing the arrangement. Verified: nine checks in `tests/test_split_ux.py` -- the axis chosen for wide and for tall panes, the aspect deciding at 74x44, both fallback directions, the refusal and that the explicit keys refuse the same way, and that it appears on the cheatsheet under `enter` and in the palette by name. The existing 65 checks about what the border offers still pass, which is what I was most worried about.
* sl0ppty: docs that match the programuser2026-08-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Audited every page against the source and the binary rather than against my memory of it. Eight pages changed; the lists were all fine and the *numbers* were all wrong. Checked mechanically, and each of these came out complete: all 37 action names, all 28 control verbs, all 9 shader names, the expression language's 10 variables, 2 constants and 7 functions, the 8 pane states, every knob the dump prints, every OSC verb, every internal link and anchor, and every page's place in `docs/nav`. Every fenced `kdl` block was run through `--check`; every `{"cmd":...}` in an example is a verb that exists. What was stale: - **`make` does not build.** The default goal is `help`, so the install block -- `make vendor`, `make`, `make test` -- never produced a binary. It says `make all` now, timed at 5.5s from clean rather than "about a second". - **700-odd checks in about eight seconds** is now 1,500-odd in about thirteen, plus 260 from the C unit tests, which the sentence did not count at all. - **About 10k lines of C** is 15k. (10,799 of those are neither blank nor a comment, which is presumably where the old figure came from.) - **Seven chrome presets** are thirteen, and the six new ones use `sin` and `TAU` -- so the perimeter section gained the angle idiom it now depends on, and its "two things fall out of it" became three. - **`--check`'s example transcript showed two errors nobody can produce any more**: `bad prefix: C-a` and `bad key: ←`. Both inputs became *valid* -- `C-a` when the chord parser learned the notation the cheatsheet prints, and `←` when it learned the arrow glyphs, precisely so a chord copied off the screen parses. Replaced with a transcript I generated, and a note that the problems go to stderr, which matters for the pre-commit hook the page suggests. - **`bell_indicator`** was a real knob documented nowhere. - **"There is no key for this yet"** about moving a pane between tabs, two commits after the keys and the drag landed. - The cheatsheet's `+N more` line, the finder's `C-u`, and `tab_id` in a pane report were all real and unmentioned. Verified: the whole suite green, `make docs` builds nine pages, and the changed pages read correctly in a browser -- including the new transcript and the `>` `<` row of the key table.
* sl0ppty: drag a pane onto a tabuser2026-08-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drop it on a tab in the strip and it moves into that tab; drop it on the `+` and it gets one of its own. The fourth verb of the same drag machine, and it cost almost nothing because it is the third one's target read the other way round: the strip was already a row of drop targets, and a pane in your hand was already a thing being carried somewhere. The strip draws the drop states itself. `ptr_on` reports nothing during a drag -- on purpose, so hover feedback does not fight a gesture -- so a tab cannot find out it is under the pointer the usual way. It uses the two states the panes already use for this exact question: every tab the pane does not live in is a candidate in the drop colour, and the one under the pointer is filled. These are all targets; that is the one you are on. The tab the pane already lives in does not offer itself, because dropping there is the one refusal a drag can reach -- and it says "it is already in that tab" rather than looking like a drag that failed to take. Leaving the strip takes the offer back, the same way dragging a tab off the strip is not a cancel but simply not a place to put one. Releasing over a pane still swaps the two, which has a test of its own: the strip is a new kind of destination, not a replacement for the old one. A toast says where the pane went, and here it matters more than for the keys: the pane lands in a tab you are not looking at, so without a word the screen just shows one fewer pane. Verified: `tests/test_move_pane.py` at 52 checks. The new ones drive real mouse reports -- press on a title, motion onto a tab hit, release -- for the move, the `+`, the three highlight states (candidate, filled, and the pane's own tab declining), taking the offer back by dragging off the strip, the refusal, and that pane-onto-pane still swaps.
* sl0ppty: a README you can read, and docs/ for the restuser2026-08-15
The README was 331 lines and had become a manual with a title. Everything in it was true and most of it was the wrong thing to hand somebody who has just arrived: five pages of shader expression semantics before they have split a pane. So the front page is 60 lines -- what it is, install, run, where the docs are, and six bullets on what is actually different about it -- and the detail moved into docs/, nine pages that each answer one question: index.md what it is, install, run, where to go keys.md the leader, every default, rebinding, direct binds panes.md splitting, resizing, the mouse, dead panes, small terminals config.md the file, live reload, include, themes, the knobs shaders.md the passes, the built-ins, the expression language chrome.md where="chrome", channel, since, the perimeter trick layouts.md a session as a file, and writing one back out scripting.md the control socket, OSC 5577, headless design.md the two decisions, and a map of the source docs/nav holds the order and the grouping and nothing else -- titles come from each page's own heading, so a renamed page cannot end up with two names. It is what the site generator will read. Reference material that only existed in code comments is written down for the first time: every action that can be bound (including the two with no default key, which is what the palette is for), every control verb, the built-in shaders with what each takes, the pane-state ranking, and the layout file's shape. Two things I got wrong on the first pass and fixed before committing: the docs linked repo files through github.com URLs for a project whose remote is a private git server, so those are inline paths now; and the README advertised `make docs`, which does not exist yet. It will in the next commit, and it can be advertised then.