# Changelog

What changed, newest first. This file feeds the **What's new** popup in the
editor (the star in the header, D58): every `## YYYY-MM-DD` heading opens a day,
every bullet under it becomes one note. Anything else here — like this
paragraph — is read by people, not by the build.

**English, deliberately.** The project's documentation is German (CLAUDE.md),
but this file is shown *inside the product*, whose interface speaks nine
languages. Like the shipped plan and `llms.md` it is a delivered artefact with a
worldwide audience (D22, D43). Keep the notes short — one line, what changed,
from the reader's side rather than the commit's. `Backticks` become code in the
popup; no other markup is honoured, so write plain sentences.

The node highlighting per day does **not** come from here: it is computed from
the git history of `docs/examples/werkbaum.werkbaum`. A day can therefore carry
a link without having a note (someone forgot to write one) — but never the
reverse.

## 2026-09-02

- Running the installed app and a browser tab side by side works now: text, names and earlier states live under their own storage key per document and deleting leaves a tombstone, so windows stop deleting each other's work
- A document created, renamed or deleted in another window shows up without a reload now, and a document deleted elsewhere while open here stays until you type — typing brings it back
- The modal "open more than once" dialog is gone; the one remaining loss case — the same non-shared document open in two windows — is found by a per-document lock, and the second window chooses: open another document, view only until the other window lets go, or edit anyway
- The other-window warning now names the document and says whether it is open in the app or in the browser — and stays silent when nothing collides
- Fix: in the "open in another window" dialog the list of other documents squeezed its buttons until the names ran into each other — picking one is a dropdown now, one line tall however many documents you have
- The two-window warning says "whichever change is saved last wins" now instead of "the last keystroke" — folding a branch in the diagram writes to the text too, so it joins the same race
- "View only" really is view only now: while the document is held by another window, the diagram's fold marks stay put too — folding writes to the text and used to slip past the read-only text area; the window holding the document folds as before
- An MCP server for AI agents recorded as planned: it lives in the backend, runs the one JS parser through GraalJS, hands plans to Claude Code and other agents as resources and tools over streamable HTTP, and writes changes as conflict-safe line diffs — no new runtime, spelled out in an RFC before it is built

## 2026-08-28

- Folding or unfolding a node keeps it in place on screen now: the scroll position follows the layout shift, so the clicked node no longer jumps away
- The node window no longer opens on hover: click a node to open it, click again or elsewhere to close — folding and moving across the tree stay snappy
- A linked node's plain click now opens the window everywhere, like on touch — the URL sits behind the ↗ button, and Enter on the focused node or Ctrl+click still open it directly
- The Taiga buttons in the node window sit side by side in one row now — the window grows a little wider for them, and they wrap only when space truly runs out
- The open button moved into the ticket box's action row, next to write and take, and its label shrank to "Open #US-123" — the neighbours say where
- "Link ticket" in the node window binds an existing Taiga story or task to a node: paste the ticket's URL — it carries project, type and number by itself — or enter a ref or bare number
- A bare number is resolved by probing story then task, and the ticket's subject is shown before anything is written — you link what you saw
- Linking appends the ref and, where needed, the `&taiga.slug` tag in one undo step, and pre-fills the ticket cache so window and divergence mark agree at once
- A ticket URL from a different Taiga instance is named as such instead of silently linking a same-numbered ticket on yours
- One bulk request reads the status of all referenced tickets: the proxy fans the refs out right next to the Taiga instance, so the cost scales with the refs in the plan — not with a project that holds thousands of tickets
- With a Taiga login, diverging tickets show up in the diagram: a ref whose ticket status no longer matches the node's box turns amber — as its own little badge where the ref is the node id and thus not part of the title
- The bulk result pre-fills the node window's ticket cache, so hovering a ticket node usually needs no request of its own any more
- The divergence mark is session knowledge and stays out of the SVG export and of print — what you share is the plan, not your fetch state
- The create buttons in the node window are recut: one "create story" button always opens the dialog with project choice and sub-package checkboxes — unchecking covers the story-only case
- A "create task" button appears where an ancestor node already carries a story: the task lands in that story without any dialog — project and story follow from the tree, only an error gets a surface

## 2026-08-27

- Where a ticket and the plan disagree, the node window says so and offers both directions as explicit buttons — nothing happens by itself
- "Write to Taiga" sets the ticket's column from the status box; only the five mapped states can be written, `[?]`, `[!]`, `[-]` and a box-less node leave the ticket untouched
- Writing goes against the state you were shown: if someone changed the ticket meanwhile, it is refused instead of overwritten, and ↻ fetches the new state
- "Take from Taiga" writes the status box into the text line — an ordinary, undoable change, visible to everyone in a shared document
- The node window shows the state of a ticket now: subject, status and assignee, read from Taiga through the backend proxy
- Taiga's status is shown next to the notation's own box (`In progress → [~]`) — a column name outside the five known ones stays unmapped and is shown as text
- Reading a ticket never changes the plan: no status is written back, and the text stays untouched
- The state is fetched once per ticket and session, and only when the node window stays open for a moment — a ↻ button fetches again
- Without being logged in nothing is fetched: the window offers a "fetch state" button that asks for the login first
- Ctrl+click a ticket ref like `#US-123` — in the text or on its node — opens the ticket in Taiga's web UI; the node window carries an open button, which is the way on touch
- The backend names the Taiga web address now (`WERKBAUM_TAIGA_WEB_URL`, reported by `/api/v1/info`) — without it, creating tickets still works and opening is simply absent
- A ticket ref like `#US-123` in a node title no longer breaks across two lines at its hyphen
- Create a Taiga story from a diagram node: the node window offers "create story" and "create story + tasks" — log in once (the token stays in the browser), pick the project, and the ref lands in the line as `#US-123`, undoable
- Sub-packages become Taiga tasks via a checkbox dialog: required and optional children start checked, in `|`/`=` groups only realized alternatives, done children unchecked, discarded ones absent — each created task writes its `#T-…` ref to its line
- The project dialog is prefilled from the inherited `&taiga.slug` keyword, and a creation without or against the inherited assignment writes the keyword back to the node's line
- A node whose line already carries a `#US-…`/`#T-…` token offers no create action — the ref on the line is the idempotency marker
- The backend proxies Taiga through four named endpoints — login, projects, create story, create task; the Taiga API address is server configuration, the token stays in the browser, and `/api/v1/info` says whether the feature is on
- Free `&tag` keywords are part of the notation now: free-standing only, quoted mentions like `(&taiga.slug)` stay labels — and `&taiga.slug` names the Taiga project of a subtree, inherited downwards
- Plans spanning several Taiga projects: a `&taiga.slug` tag names the project per subtree, inherited downwards — the first consumer of the reserved free tags, recorded as planned
- Creating Taiga tickets from nodes recorded as planned: a story per node from the node window, sub-packages as tasks picked in a dialog, through a backend proxy — the ref lands in the line as `#US-123`/`#T-1234`, beside the node id
- The unassigned pill in the people bar shows each language's short form now — German `N.N.`, English `TBD` — with the long wording in the tooltip
- `pull-doc --open` opens the fetched document in IntelliJ IDEA afterwards — also when nothing changed
- A dead live session now reconnects by itself — unsent text stays in the editor and goes out as a diff once the server answers again
- The connection state stands next to the document name: disconnected or unsent changes turn the kind label amber, instead of only a warning below the diagram
- The document kind now stands in grey behind the name chip — Included, Local or Shared with the server's host, the same words as the menu groups
- A second Werkbaum window now raises a modal dialog in both windows — it closes by itself as soon as the other window is gone
- A standing warning appears when changes have not reached the server for 30 seconds — whatever the reason: an open conflict bar, a dead session, the network
- Unsent text is never discarded silently any more: it is rescued into the local backups before a reload, a conflict decision or a server full-text replaces it, and closing with unsent changes asks first
- Local backups are collected for shared documents again and appear in the clock menu below the server milestones
- Fix: a failed first load of a shared document left a half-initialised session behind — typing went nowhere, silently
- A `pull-doc` script fetches a shared document from the backend into a file — with `--git-commit` it also commits it, dated, and only when something changed, so a cron gives the plan a git history
- A benefit rating per node recorded as planned: a 0-9 digit inside the size token (`M/9`), and a third path mode that picks alternatives by benefit over cost — spelled out in SPEC §11 before it is built
- A people bar below the diagram shows each `@person` with their share of the open work on the cheapest path — plus an entry for what is assigned to nobody
- Tapping a person filters the diagram to their nodes: everything else folds, their packages stand collapsed as `▸ n`, their pills turn teal — a view-only lens that never writes into the text
- Folding regions in the text editor recorded as an idea in the plan — view-only and local, unrelated to the diagram's fold marks, deliberately not sized yet
- Fix: the root node's fold chip was white-on-pastel and barely visible — it now looks like every other node's, and the description mark and id line on a coloured root are readable too
- The caret on a node off the cheapest path now highlights only the ring — the fill stays pale instead of jumping back to full colour
- On shared documents the history button shows the server's milestones — loading one is a rollback for everyone, as a new version, nothing lost
- The camera button turns the current state of a shared document into a server milestone instead of a local snapshot
- Joining or sharing a document asks once for a display name — it fills the history's "changed by" and stays a claim, not a proof
- Renaming a shared document now renames it for everyone: the pencil patches the server title, and the change feed hands the new name to every open editor
- URL documents lost their pencil — their name is the URL, and a local name would not survive the next load
- If Werkbaum is open in a second browser tab, a warning says so — both tabs write the same document list, and the last one to save wins
- Reloading a URL document no longer asks — a page reload discards local changes silently anyway, so the question promised a protection that did not exist
- Deleting your last document now says that a fresh example will take its place
- Fix: the reload button also showed for shared documents and would have loaded the API's JSON answer as text, pushing it to everyone
- An owner password for shared plans recorded as planned: creating a document returns it once, management will bind to it, an admin can reclaim
- Shared documents are left, not deleted: their row shows a leave action with its own icon and wording — the document stays on the server, and its link lands on the clipboard
- The document menu's groups are named Included, Local and Shared now — "yours" and "sources" said less than where a document lives
- Documents are stored one key each now, with a small index: a full storage no longer blocks every save, and one corrupted entry costs one document instead of all
- Typing no longer serializes every document on each keystroke — only the active text is written, the full list on switching, closing or leaving the page
- When the browser's storage is full, a warning says so instead of silently dropping changes until the next reload
- Shipped documents are no longer renamable — their name is part of the delivered state, and a renamed but unedited example would still silently receive new versions
- Fix: sharing from an instance without its own backend (GitHub Pages) failed with HTTP 405 — the share button now probes the default address and asks for the server instead

## 2026-08-26

- The document picker moved into the app header: `Werkbaum › name` opens the menu — on the phone it is reachable from both panes, and the name takes over the subtitle line
- The document menu groups by kind — included, yours, sources — carries rename and delete on each row, and scrolls instead of being cut off on small screens
- The editor title bar is labelled `Text editor` again and holds the document's own buttons: save, snapshot, history, reload from the source, and a short `Share` button that puts the plan on a server
- The address bar follows the document you switch to: `?live=` and `?sourceUrl=` name what is in front of you, so a reload brings back the same plan
- Switching to a server document in the picker now really opens it live — before it only showed its last state
- Fix: a foreign change to a server document could land in the text of a local document you had switched to
- Changes in a shared document now reach the others after 0.6 s instead of 1.5 s — the wait before sending was almost the whole delay

- The Etherpad integration is gone: collaboration now runs through a Werkbaum backend, and an old `?etherpad=` link says so instead of doing nothing
- Plans can live on a Werkbaum backend now: open `?live=<document URL>` and everyone edits the same text, seeing each other's changes without reloading
- When two people change the same lines, a bar asks whose version should win — everything else the server merges by itself
- The caret stays where you put it when someone else inserts lines above you
- The backend can be deployed to a server: its own JDK, a systemd service, and Apache passing `/api/` on
- "Put on the server" in the document menu turns a local plan into a shared one and puts the link in the address bar
- A service endpoint `/api/v1/info` says which build is running — for deploys and monitoring
- One `remote` command drives the server: deploy, log, service state, and a database backup that is read back before it is kept
- Fix: folding a node in a shared document could ask whose version should win — the editor was arguing with itself, because the change feed hands your own change back to you

## 2026-08-25

- The fold button cycles through four presets now: size M and smaller, everything off the cheapest path, everything, all open
- A button next to the cheapest-path toggle switches the dependency cross links on and off
- Dependency links follow the folding: an edge to a hidden node now ends at its first visible ancestor, for source and target alike
- In Brave, the file notice names the flag that enables the File System Access API by hand
- Fix: the file notice and the legend blamed "Chromium", but Brave is Chromium without the File System Access API — they now name the feature and example browsers
- Browsers without the File System Access API (Firefox, Safari) explain themselves once: files open as copies and saving downloads a new file
- Fix: the save dialog suggested a "name (1)" neighbour in the wrong folder — it now points at the original file, and open/save dialogs remember the plan folder
- Ctrl+S saves the document as a file — with a remembered file it writes straight back in place, and the document name flashes as confirmation
- Fix: a file double-clicked right after the app starts could open as a duplicate document instead of updating its own
- The installed app registers for `.werkbaum` files — a double-click in the file manager opens them straight into the editor
- A service worker starts the editor offline; navigations stay network-first, so the update notice keeps telling the truth
- Werkbaum installs as an app: a web app manifest with standalone display and icons rendered from the brand mark
- PWA file handling recorded in the plan — an installed app would open `.werkbaum` files on double-click and save without any dialog
- In Chromium browsers, saving writes back to the opened file, and the same file reopens into the same document
- Open a local `.werkbaum` file and save the document back as a file, from the document menu
- An AI integration recorded as an idea in the plan — edit the tree in a dialogue, with your own API key and `llms.md` as the model's guide
- A warning flags the bottleneck when one `@name` carries more than half of the open work on the cheapest path — their tag pills turn amber on the open nodes
- The estimated size of an unsized node now prices the remaining work — done sub-packages drop out, and a subtree with everything named done counts as XS
- The fold chip is solid white with an ink glyph now — the translucent box vanished on the pastel node colours
- A size prices its whole subtree on the cheapest path — sub-packages no longer add on top, so a carefully decomposed `(S)` beats a coarse `(L)`
- The size is now the last free-standing `(L)`-style token of the line — earlier ones stay in the title, and `"(L)"` or `((L))` mention a size literally
- Fix: Ctrl+click on a dependency preceded by a non-breaking space did nothing, although the parser reads it as a dependency
- Ctrl+click a dependency `:#id` in the text jumps to the line that defines the ID — Ctrl+Enter does the same at the caret

## 2026-08-24

- A missing size is now estimated from the sub-packages — at least the largest child size, one step more from three children of that size
- Node titles wrap at thirty-two characters now instead of forty — long titles pulled the diagram wide
- Fix: in the vertical layout, the line from a parent to one or two children was torn — the collector rail now always reaches the parent's stub
- The legend shows the high-risk status `[!]` and mentions the size check
- `llms.md` tabulates the size ranges and aligns its table columns
- Long node titles wrap into evenly balanced lines of at most forty characters
- With ids shown, the id sits on its own line above the title
- The fold sign is a framed chip now — a click target you can actually hit
- Typing `:#` suggests the document's ids — arrows choose, Enter inserts
- When the caret's node is folded away, the nearest visible ancestor takes the highlight — also on Alt+click from the text
- A size that cannot hold its sub-packages turns its badge amber and gets a warning — sizes are read as ranges, so only sure conflicts are reported
- Fix: the exported SVG drew the assumed-M badge filled like a real size instead of inverted
- Dependency links now run behind every node, highlighted ones included — no more lines struck through node titles
- Fix: the line to an only child was torn where the child does not sit centred in its cell
- An optional node (`+`) joins the cheapest path while it is being worked on — started work is the open front
- Fix: a started alternative lost its `|`/`=` group to an untouched cheaper one, although the choice was already made
- A node written as an id alone (`- #US-123`) is now titled by that id, instead of being ignored
- A line ending in a space and `\` continues on the next line, so a long node no longer has to fit into one
- A star in the header opens What's new: the changes of the last few days, and a link per day that shows the nodes it touched in the diagram
- A warning triangle replaces the question mark as the pointer over faulty line numbers
- The node window replaces the browser tooltip everywhere — at the pointer, on keyboard focus and on touch
- A `#` button in the diagram header puts node IDs in front of the titles
- Typing `#.kc` under `#prod-stage` expands to `#prod-stage.kc`, right when you close the id with a colon
- A camera button next to the history saves a snapshot on demand
- Fix: the manual snapshot button confirmed without saving anything while nothing had changed yet
- Warning line numbers carry their message as a tooltip
- `llms.txt` now points at the notation guide, and `llms.md` is served as UTF-8

## 2026-08-23

- Every node of the shipped Werkbaum plan carries an ID and a description
- One button steps from station to station along the cheapest path
- The cheapest path shows the open front: what is done costs nothing any more
- A new document starts by asking for its name
- The text area no longer wraps lines — the indentation keeps carrying the hierarchy
- Node IDs read `#auth: Title` now, with an optional separating colon
- Fold marks moved behind the status box, so the boxes stay aligned
- Fix: the document and download menus open again on small screens

## 2026-08-22

- Node IDs (`#auth`) name a node across the whole document
- Dependencies (`:#auth,#api`) point across the tree, cycles allowed
- The node colour shows the effective status — what a node waits for holds it back
- Dependency links are drawn as thin dotted curves behind the nodes
- Subtrees fold and unfold, in the diagram and as `>` / `<` in the text
- Exactly-one groups (`=`) with a "1" plaque on the collector rail
- Node descriptions, as `"` lines or as blocks behind a `---` divider
- The cheapest path counts shared dependencies once — and says so when it has to guess
- "Restore original" brings a shipped document back to the delivered state
- `llms.md` explains the notation to AI agents

## 2026-08-16

- The example plan is called `werkbaum.werkbaum` and describes Werkbaum itself

## 2026-08-05

- Line numbers next to the text, warnings marked in the strip
- Alt+click in the text centres the node of the caret line

## 2026-07-30

- The focus mark `!!!` got a teal crown of its own
- Research on updating by itself: what an Etherpad instance can and cannot do
- An IntelliJ plugin recorded as an idea in the plan

## 2026-07-27

- `+` marks an optional node — an extra, neither required nor an alternative
- Consecutive optional leaves cascade into a staircase instead of taking a column each
- "What's new" highlights what went into production since your last visit
- A shared Etherpad can be watched, embedded and reloaded

## 2026-07-25

- The notation text can be loaded from a URL with `?sourceUrl=`

## 2026-07-23

- Several documents side by side, switched from the editor's title bar
- The interface language follows the browser, German as the fallback
- High risk `[!]` carries a warning triangle

## 2026-07-22

- IBM Plex is embedded locally — no request to Google, no IP address to third parties
- Zoom controls for the diagram
- Accessibility: spoken labels per node, focus order, live region for warnings

## 2026-07-21

- First version: text notation, parser, and a diagram in three layout modes
- Status boxes, t-shirt sizes, people tags, bare URLs and `%%` comments
- The cheapest path through the tree, with a metro-style line through the open leaves
- Print stylesheet and SVG/PNG export of the diagram
