3b1632069c9ad982cefb2d4db264e909aa55b95d
25 Commits
| Author | SHA1 | Message | Date | |
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 Jaroslav Beneš
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3b1632069c |
Compaction: a button, and automatically when the window fills
A long conversation eventually just stops working. Compaction summarises the earlier turns and sends the summary in their place. The messages are kept. They stay in the transcript behind a collapsed divider and simply stop being part of the request, which is what makes the button safe to press and automatic compaction safe to have at all: a summary that came out badly is a bad turn, not a lost conversation. Stored on the Chat, not as a synthetic Message. A synthetic row needs a role -- `system` breaks the one-system-message rule the moment build_messages emits it beside the harness, and user/assistant makes it a turn people can edit, regenerate from and copy, indistinguishable from a real one in all four places a bubble is rendered. Worse, "editing rewinds, it does not branch" would silently delete it and leave no marker that compaction had happened at all. The summary goes out as a user turn and an assistant turn, not one. A leading assistant breaks templates requiring the first non-system message to be user; a lone leading user produces user, user whenever the kept history starts on a user turn -- which it always does, because the cutoff lands on a finished reply. compacted_through_id is a plain id rather than a foreign key: migrations.py compiles only the column type, so a REFERENCES clause would exist on a fresh database and not on an upgraded one, and a constraint half the fleet has is worse than none. cutoff_message validates it on every read instead, and a rewind past the boundary clears it. Compacting again summarises only the delta, with the previous summary supplied to be subsumed. Re-summarising the whole chat each time grows quadratically and eventually exceeds the window it is protecting. Automatically at the top of _run, not in post_message: that route's contract is to return immediately and leave the slow part to a resumable connection, and it also means build_request is called once, after compaction, with no second assembly path. The trigger is the last reply's recorded usage plus an estimate of the new turn -- retrospective because true prompt_tokens are only knowable after a response, plus the delta because otherwise fifty thousand characters pasted into the composer overflow a window that read 90% last turn. It never fires when the context length is unknown. It does fire on estimated counts, which is safe here precisely because nothing is lost. _maybe_compact never raises: a failure logs and sends the uncompacted request. A `status` event says "Summarising earlier messages…" in the meantime, because a silent multi-second pause before the first token is what a hang looks like. The wording is three fragments under Admin - Prompts. Clearing task.compact turns compaction off entirely. Also adds compaction.moment(): SQLite does not store the offset, so a row loaded from disk is naive while one in the session's identity map keeps its tzinfo, and comparing the two raises. Every comparison here is between exactly those. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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aa0bbe524a |
An admin inspector on the right of the chat
A third child of .shell, opening and closing like the sidebar opposite it, showing the system message that would go out, the tools offered, what the last reply cost, and the whole request body as JSON. Rebuilt, not recorded. Recording every request would store a copy of the growing conversation against every message -- quadratic in chat length -- and the thing an administrator debugging a bad answer actually wants is what the current configuration produces. The panel says exactly that at the top, so nobody mistakes it for forensics. Owner-checked and admin-checked, not admin alone. permissions.resolve giving an admin everything is about configuration, which they can grant themselves anyway; reading someone's conversation is a different act, and it is why sharing.visible_to has no admin branch. An inspector that could dump any user's transcript would be that branch under another name. No new JavaScript. app.js already delegates [data-toggle], and hx-trigger="intersect once" makes the load lazy for free: a hidden element never intersects, so the request fires the first time it is opened and never on a page load nobody looked at. Image data URIs are replaced before dumping -- fidelity is the point, but not several megabytes of base64 in the DOM. Everything renders through normal escaping and never |safe: this JSON is full of model output, search results and uploaded documents. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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09cfde4de8 |
Prompt suggestions on the new-chat screen
A blank composer is the least helpful thing a chat client can show someone who has just installed one. Three cards now sit under the empty state, and an administrator manages them at /admin/suggestions. Clicking a card fills the composer and stops there. It deliberately does not send: every default ends mid-sentence, because a card is a starting point rather than a question somebody already asked, and the caret lands where the person has to start typing. Seeding is guarded by a settings flag, not by "is the table empty" -- otherwise an administrator who decided against them would get all three back on every restart. Capped at twelve, six shown: past a dozen this is a menu, and a menu on the empty screen is a worse blank page than a blank page. The cards are gated on there being no chat at all, not on the thread being empty. An empty chat someone opened on purpose already has a model and a prompt chosen. Also fixes a pre-existing bug the position test caught. Both this and _refresh_models wrote `coalesce(max(position), -1) or -1`, and position 0 is falsy -- so the second row landed back on 0 on top of the first. The coalesce was already doing that job; the `or` was undoing it. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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248dec2961 |
Temporary chats
A clock in the top-right starts one. It is never listed in the sidebar and is swept a day after the last thing said in it. A real row rather than something held in the browser, because a reload, a crash or a background tab all look identical from here -- "delete when you navigate away" would lose conversations people meant to keep. The flag rides in the URL (/chat?temporary=1) rather than in JavaScript, so it survives a reload and can be bookmarked, and the composer carries it as a hidden field beside model_id. Keep clears the flag. Without a way out, a conversation that turns out to matter is destroyed a day later with no recourse, and people would find that out exactly once. archived was filtered in three places and temporary mirrors all three, plus Folder.visible_chats. It also skips the unread flag in _persist: there is no sidebar row for the dot to land on, and the toast would name a chat nobody can navigate to. The sweep measures age from the newest message, not from the chat row. created_at would destroy a conversation still in use at hour 23, and updated_at does not move when a message is inserted -- onupdate fires on an UPDATE of the chat, and adding a message is not one. It runs at startup beside the existing upload sweep. Deleting a chat cascades its rows but leaves the files on disk; only the orphan sweep unlinks anything, and it looks only at uploads that were never attached. files.remove_files_for_chats() closes that for the new sweep. The same hole in delete_chat is pre-existing and left for its own change, which can now call the same helper. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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b8618b0c91 |
Show what a reply cost, live and afterwards
Tokens, how full the context is, and tokens per second -- as chips under each assistant bubble, updating while the reply streams and still there when it finishes. The numbers come from one Metrics object built either from the generation still being written or from the row it left behind. That is the point rather than tidiness: the finished bubble is re-rendered from the database the instant the stream ends, so two code paths would make the figures visibly jump at exactly the moment someone is watching them. Here the only thing that changes is that an estimate may become exact. Message.usage_json has existed and been dead since the schema was written. It is the store. Two counts that look like one. prompt and completion are summed across tool rounds -- what the reply cost. context_tokens is overwritten each round with that round's prompt plus completion -- what the window actually holds. A three-round reply pays for its prompt three times and only ever occupies the window once, so a single number would be wrong for one of the two questions. Generation gains started_at as a field rather than a local in _run, because _follow is a different function that sees only the Generation and otherwise has nothing to compute a live speed against. It also carries a prompt estimate taken before the first chunk, since real usage arrives in one chunk at the very end and a percentage that appears only after the reply is useless. Everything is marked with a tilde when the endpoint reported nothing, and the percentage is simply absent when no context length is set: unknown has to stay tellable from small, and a percentage of an unknown total is a made-up number in a place people trust numbers. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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ff58ada6bf |
Ask the endpoint what a streamed reply cost
A streamed completion carries no token counts unless you ask for them, and
`stream_options: {include_usage: true}` is how. Not every server implements
it, and an unknown key is a 400 from some -- the same hazard as sending a
tools array to an endpoint without support. So it is asked for once per base
URL per process, and an endpoint that refuses is remembered and retried
without it. The retry is safe because the status is checked before a single
line is read: nothing has been yielded, so there is nothing to duplicate.
chunk_usage() reads the resulting chunk. It needed no change to the loop
above it: a usage chunk carries `choices: []`, which is exactly the shape
delta_text, delta_reasoning, delta_tool_calls and finish_reason have always
returned early on. All-zero counts are treated as absent, because some
servers attach zeros to every chunk and the real numbers only at the end.
services/tokens.py is the fallback for endpoints that never report: four
characters to a token, counting the tools array because thirteen schemas is
a meaningful slice of a short window, and counting nothing for an image
because its cost depends on tiling and an invented number would be worse
than the omission. Crude on purpose -- a real tokeniser means one per model
family, for a figure that is displayed beside a tilde.
Nothing uses any of this yet.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Jaroslav Beneš
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90623b461d |
Models know how much context they hold
A column rather than a key in capabilities_json, which is rebuilt wholesale from the submitted checkboxes on every save and would destroy a number living in it. 0 means unknown, and unknown has to stay tellable from small: the context percentage and automatic compaction both refuse to act on a figure nobody supplied. Filled in from /v1/models where the runner advertises it -- OpenRouter, vLLM and llama.cpp each spell it differently, so context_from() reads the four spellings actually in use, accepts a quoted number but not "8192 tokens", and rejects anything outside 256..10,000,000. Applied on discovery only when nothing is set: a refresh must never undo a correction, since an administrator sets this precisely because the endpoint was wrong. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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4531cd75e3 |
Archived chats no longer show inside folders
The unfiled list has filtered archived chats since archiving existed (api/pages.py). The folder branch went through the ORM relationship, which filters nothing, so an archived chat kept appearing as long as it was filed -- and the "Empty" check read the same unfiltered list, so a folder holding only archived chats would have claimed to be empty while listing them. Fixed on the model rather than in the template, as `Folder.visible_chats`. The loop and the empty check now cannot disagree, because there is one list and the template binds it once. Ordering matches the unfiled list: pinned first, then most recently touched. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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0df21d23af |
Regenerate actually regenerates
`ensure` is keyed on message_id and idempotent on purpose -- a page load
finding an unfinished reply must attach to it rather than start a second
one, and `_follow` calls it too. But finished generations linger in the
registry for KEEP_FINISHED so a follower arriving at the last moment still
gets the final frames, and regenerate is the only caller that reuses an
existing Message row instead of creating a new one. So `ensure` handed back
the finished generation: no request was made, `_follow` replayed the old
answer, and the `done` frame re-rendered a streaming shell because the row
said incomplete. That is the reconnect loop, and the Send button stuck on
Stop. It appeared to work after five minutes only by accident, and only
sometimes: `_prune` sat below the early return, so it was unreachable for
exactly the message that needed it.
`restart()` is the explicit opposite of `ensure`, and regenerate calls it.
`_prune` moves above the lookup.
Cancelling a live predecessor makes its `finally:` run `_persist` on the
same row, which would overwrite the reply that replaced it. `_persist` now
refuses when another generation owns the message -- "someone else owns this
row now", not "this one is registered", so a direct call still writes.
Three things found next door, all in the same area and all bugs:
- `done` was set before `_persist` committed, while `_follow`'s docstring
claimed the opposite. `_follow` breaks out the instant it sees the flag
and re-renders the bubble from the row, so the row has to be right
first. Harmless today, a guaranteed loss once metrics land there.
- Live reasoning duplicated quadratically. The frame carries the whole
block each time, exactly as `render` and `tools` do, but the target
swapped it `beforeend`.
- `sse.KEEPALIVE` was defined and never yielded. A model thinking for
ninety seconds emits nothing, and an idle connection is what a proxy
closes.
There was no test for regenerate at all. There is now.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Jaroslav Beneš
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1906919ee2 |
Every injected prompt becomes editable, and several get written
The instructions LLeMbas puts in front of a model were hard-coded: six
strings in a GUIDANCE dict, two headings, and the title request inline in
chat.py. An operator could not see what was being sent, let alone change
it, and there was nowhere for a custom tool to contribute its own guidance
when custom tools land.
services/prompts.py now holds each piece as a Fragment, and /admin/prompts
edits them with a preview of the whole assembled system message including
unsaved edits. harness.py keeps only the decisions -- which fragments apply
to this request, and what their variables resolve to.
The design turns on one choice: a fragment carries its gate as data
(families, requires, when_tools) rather than as a callable, because a
database row can carry the same three fields. Custom tools will therefore
register a fragment source and change nothing else -- there is a test that
says exactly that, and it is the reason the rest of the shape is what it is.
Consequences worth knowing:
- Defaults live in code, overrides in the database, and text equal to its
default is never stored. Otherwise pressing Save once would freeze
today's wording forever and no later release could improve it.
- An empty override means off. A fragment that was not submitted at all
keeps what it had, because it may be missing from the page only because
whatever contributes it is currently switched off.
- requires= replaced the hand-written pair of memory guidance variants.
The sentence that refers to a section now lives inside that section, so
it cannot outlive it. That was the general problem the pair was a
special case of.
- {{name}}, with anything unrecognised passing through verbatim. The name
grammar is the guard: {"total": 1} and ${PATH} are not candidates.
Substitution is one pass and never recursive, because {{memories}}
carries text a model wrote.
The wording is also overhauled, and a model now gets the core fragments
even with no tools -- the date above all. "An empty harness is worse than
none" was about tokens that say nothing; a model with no clock being asked
about the present is not that. Clearing those boxes restores the old
silence exactly. New: today's date, who it is talking to, the three-round
tool budget, that tool results are not replayed, that anything a tool
returns is data rather than instruction, and what the <document> wrapper
around an attachment is. Extended: memory_forget, notes_edit/delete,
skill_create/edit, and reading a knowledge document in full rather than
answering from an extract.
Tool descriptions stay in code and are listed read-only. They are schema
and they state facts about what a runner does; an edit would make the text
a lie with nothing to catch it.
No schema change -- one JSON row in the settings table.
488 tests. Version 0.2.0, which also invalidates the service worker cache
so the green artwork appears without a hard reload.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Jaroslav Beneš
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2a79d962a3 |
Add nullable columns without a default
Deploying knowledge bases showed the migration runner doing the wrong thing:
ALTER TABLE "documents" ADD COLUMN "base_id" VARCHAR(32) DEFAULT ''
`base_id` is nullable and its absent value is NULL, but the runner derived a
default from the column type and backfilled every existing row with the empty
string. Nothing then matched `base_id IS NULL`, so the startup sweep that files
pre-bases documents into a default base would have skipped all of them and the
documents would have stayed invisible.
Nobody lost anything -- the live instance had no documents yet -- but the fault
is general: any nullable column added from here would arrive as "" rather than
NULL, and every "is this set?" check would be wrong about the rows that predate
it. So a default is now emitted only for NOT NULL columns, where SQLite requires
one.
The sweep also accepts "" as meaning unfiled, since a deployment that upgraded
through the previous release has rows holding it.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Jaroslav Beneš
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35b9d8c8d2 |
Knowledge bases, and a file input that lines up
**Bases.** Documents now live in named collections rather than one flat pile, and a chat can be pointed at particular ones — "answer from the contracts folder" is a different question from "answer from everything I have ever uploaded". A chat with none attached still searches everything its owner can see, because empty means unscoped, not empty. The harness names the attached bases. Without that the model cannot tell "there is nothing about this" from "I am only allowed to see one folder", and it phrases a miss as the former. **Sharing moves to the base.** A document is visible to whoever can see the base it lives in, so `Document` is gone from the shareable types and `documents.visible()` filters through `base_id`. "This folder is the team's" is the granularity people think in; per-document grants meant answering "who can see this?" by checking every file. Moving a document between bases changes who can see it, so the destination has to be one you own. `Document.base_id` is nullable only because the column had to be added to a table that already had rows. `sweep_unfiled()` runs at startup beside the orphaned-upload sweep and files anything predating bases into its owner's default, which is what makes "always set" true everywhere else. **The file input.** `.input` gave it a fixed height and horizontal padding, so the browser's own button sat hard against the left edge while the filename floated off the centre line. A file input is two controls in one box and neither inherits anything useful, so it gets its own rule: no horizontal padding, the button sized to `--control-h` with the divider that separates it, and the text centred with line-height rather than flexbox, which file inputs do not lay out reliably. 437 tests, ruff clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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1eba860d39 |
Knowledge, notes, memory and skills, and a harness to make them used
Four places a model can reach for, differing in who writes a record and how it gets in front of the model. **Knowledge** is uploaded by a person and searched by the model. It goes through `services/files.py:prepare` — the same pipeline as a chat attachment — so the same PDF produces the same text whichever way it arrived, and `Document` carries the same content columns as `Attachment` for the same reason. **Notes** are written by the model and edited by you. Too long to inject, so they are searched. **Memory** is short facts, and every one of them goes into every request. That single decision is where the rest of its design comes from: records are capped short, the block has a budget, there is no search tool because the model is already looking at them, and they are not shareable — a record about a person is not content to hand round. **Skills** are saved procedures. Only the name and description are injected; the body is fetched when the model decides one applies, which is what makes a hundred skills affordable. A model may write and revise its own — the safety story is not a gate but a record: every revision is kept, attributed and revertible. A model that has just read a hostile page can save a skill that outlives the conversation, and the honest mitigation is that it is visible and undoable rather than that it was prevented. **The harness** is why any of it gets used. A model handed a tools array ignores it and answers from recall, because nothing in the request suggests otherwise. `services/harness.py` assembles a preamble from what this chat actually has: when to reach for each tool, the memories, the skill index. This is an exception to "system prompts are precedence, not concatenation", and a deliberate one. That rule governs the three *authored* layers and is untouched — exactly one still wins. The harness is a different axis: it describes the machinery rather than the behaviour, nobody authored it, and there is nothing for it to disagree with. It is prepended to whichever authored prompt won, in one system message, since several endpoints reject a second. Supporting changes: - **Sharing**, in one helper. `visible_to()` is the only definition of who can see a library item and every listing and tool goes through it. Sharing grants *reading*; two people editing one note with no history and no merge is worse than copying it. **Administrators do not bypass this** — they bypass permissions elsewhere because an admin can grant themselves those anyway, but reading somebody's private notes is a different act. - **FTS5**, created by `db/migrations.py:ensure_fts` with the triggers an external-content index needs. Idempotent, like the column sync beside it. Terms are ANDed and then ORed: the caller is usually a model writing a whole question, and requiring every word loses the match on one absent term. - **The attach button is a menu** — file, image, a web page, or a document from the library. Attaching a document copies it, because history must not change when a document is edited later. - **A URL fetcher with an SSRF guard.** This server can reach the router, the other services on the box and LLeMbas itself, and the address can come from a model. Private ranges are refused *after resolution* and redirects are followed by hand so every hop is checked. An admin can open it deliberately. - **Model capabilities split** into protocol support and a toggle per built-in tool. Rows predating the split have no `tool_*` keys, and absent counts as on when `tools` is on — otherwise an upgrade silently takes web search away from every model already configured for it. Also fixes the test fixture, which built the schema with `create_all` and so ran against a database without the FTS tables production has; it now runs `sync_schema`, the same path startup takes. 430 tests, ruff clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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3ad4c82b86 |
Fix the settings tabs, and space a form from what follows it
**The Audio tab rendered nothing.** The tabs are radios plus sibling selectors, and the CSS named every tab twice -- once to highlight its label, once to show its panel. A tab added without also adding those two rules gets a label that selects nothing, which is not something anyone catches in review; it looks like a blank page. Replaced with rules that derive what they can. The active label is `input:checked + .tabs__tab`, which needs to know nothing at all. The panel is matched by position -- CSS cannot compare a radio's id with a panel's data-tab -- so the Nth radio shows the Nth panel. Both lists render in the same order and a conditional tab drops out of both at once, so they cannot drift. There is a test asserting the two orders match, including with Audio absent. **A card following a form sat flush against Save.** The "Try it" panel on the search page read as another field of the settings form. The gap belongs to the form rather than to its action row: the action row is always its form's last child, so a bottom margin there has nothing to push away from. Adds `.form-actions` and a bottom margin on a form that is a direct child of an admin page. Also says plainly in the dictation settings that a server hosting one model ignores the model field, so `whisper-1` there is a label rather than a selection. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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436226370a |
PWA, one send/stop button, audio in and out, web search as a tool
Four pieces of work.
**Installable.** A manifest carrying the instance name, PWA icons rasterised
from the existing mark at design time, a service worker and a themed offline
page. The worker caches the shell only and bails out on /api/, /auth/, /admin/
and anything accepting text/event-stream -- passing a reply stream through a
worker turns it into one delivery at the end, or nothing. It is served from
GET /sw.js rather than the static mount because a worker's scope is the path it
came from.
**Send and Stop are one button.** They were two, and the hidden one was never
hidden: `.btn` is display: inline-flex, which outranks the browser's own
`[hidden] { display: none }`, so Stop sat permanently beside Send. app.css now
forces the attribute to win -- every control toggled with `hidden` depended on
that -- and the composer renders one button carrying both icons, with ui.js
flipping data-composer-action and the type with it.
**Audio.** Speech to text and text to speech against any OpenAI-shaped
/v1/audio/* endpoint: dictate into the composer, have a reply read out.
Instance settings in Admin, per-reader overrides in Settings, with the voice
list discovered from the server where it offers one. Recorded audio is capped
and never written to disk -- it is not an attachment, it has no owner, and
nothing would ever sweep it.
**Web search, as a tool.** This is the tool loop PLAN.md described as the real
work: one reply is now a bounded sequence of requests rather than one. The model
asks, the tool runs, the result goes back and it is asked again, up to three
rounds. Providers are DuckDuckGo (no setup), SearXNG and Firecrawl.
Two decisions worth stating. Tools are only offered to models flagged `tools`,
because an endpoint without support rejects the whole request rather than
ignoring the array -- the same reason images only reach models flagged
`vision`. And tool results are not replayed as context on the next turn, for the
same reasons reasoning is not: the answer already contains what the model made
of them, and replaying stale results into every later request wastes the window
and reliably sends a small model into a search loop. The sources stay visible in
the transcript instead.
Search results are untrusted third-party text and are treated as such: escaped,
and only http/https URLs rendered as links.
338 tests, ruff clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Jaroslav Beneš
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ca3e4fd04f |
Background generation, unread replies, send/stop, PLAN.md
**Replies now run in the background.** Generation was driven by the SSE request, so navigating away or opening another chat cut the answer off mid-sentence. services/generation.py owns the work as its own task and the SSE endpoint merely follows it. Verified: attached briefly, closed the connection, went to another page -- the reply finished anyway, 832 characters, not marked stopped, auto-titled. Reattaching works because both `render` and `reasoning` frames now carry the whole block rather than a delta. A follower arriving late has no earlier fragments to append to, so deltas would leave it permanently missing the beginning. Verified: attached six seconds in and the first frame already contained 517 characters written while nobody watched. **Unread indicator.** A reply that lands with no follower attached marks its chat unread; the sidebar polls every 10s for out-of-band dot spans plus an HX-Trigger that raises a toast. Polled rather than pushed: a browser sitting on another chat has no connection to the one that finished, and an always-on channel per tab is a lot of machinery for a green dot. `unread_notified` stops the same arrival being announced every tick. Follower count is what decides "was anyone watching", so reading it as it arrives does not mark it unread -- verified both ways. **Stop is the send button.** While a reply is being written the send button becomes a red stop square, found via a MutationObserver on the thread since the composer and the streaming bubble are far apart in the document. The in-bubble Stop is gone. **Attachment border removed.** As asked -- an attachment is a picture, and the frame only ever drew at the wrong width. The anchor now shrink-wraps and the img's width/height attributes are overridden so a small image shows at its own size. Adds PLAN.md: what is built, what is not, known limits, and the decisions that look like oversights until you know the reason. 239 tests, ruff clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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5f020ef33f |
Live Markdown, stop, rewind, custom picker, dialogs
Seven things. **Reasoning starts closed.** The answer is what the reader is waiting for; the thinking is one click away. **Image borders.** .attachments__image was a block-level <a>, so its border stretched the full column around a narrow picture. inline-block, and the frame is the picture. Same fix for the composer thumbnail. **Markdown now renders during the stream.** The generator re-renders the answer so far and sends it as a `render` event at most every 100ms, swapped with innerHTML, instead of appending escaped tokens and formatting everything at the end. Re-rendering whole rather than appending is the point: a list or a code fence is only correct once its context exists, and partial syntax resolves itself as more arrives. Measured against a live model: 29 render events, formatting visible from the first content token. **Stop button.** A stop request goes into an in-process set the generator checks between chunks; whatever arrived is kept, because a half-written answer the reader chose to cut short is still worth having. Measured: stream ended 0.2s after the request, 1155 characters preserved, message marked stopped rather than errored. Navigating away does the same thing via CancelledError. **Rewind and edit.** Edit one of your own turns and everything after it is deleted, then the conversation runs on from there. Deliberately not branching: that needs a UI for choosing between versions, and "go back and try again from here" is what was asked for. The form states how many messages will be discarded before you confirm. **Custom model picker.** A <select> renders only text in an <option>, so it can never show an avatar. Built from buttons and a hidden input, with descriptions, capability tags, a filter box past eight models, and arrow-key navigation written out by hand since there is no native widget doing it. **Notification system.** lembas.notify/confirm/prompt in ui.js, built on <dialog> so focus trapping, Escape and page inertness come from the browser. htmx:confirm is intercepted, so every existing hx-confirm gets the themed dialog with no change at the call site; the browser's grey confirm() is gone from every template. 230 tests, ruff clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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476812f119 |
Fix attachments never being sent with the message
Uploading an image showed the chip and then did nothing: the file was stored but never reached the model. Two causes, both in the composer template. The chips live in #attachments, and each carries the hidden file_ids input that binds it to the message. That container sat OUTSIDE the <form>, with an `hx-include="#attachments"` on a hidden <div> inside the form meant to pull it back in. That attribute only has an effect on the element issuing the request -- on a child of it, it does nothing. So the form serialised content and nothing else, and post_message saw no file_ids at all. Fixed by putting #attachments inside the form, where the inputs are submitted because they are in the form, rather than because of an attribute that has to be wired correctly. The file input stays outside, since inside it would submit an empty file part on every message. Second: /chat preselected models[0] rather than the model a new chat would actually use. With a vision model set as the default and a non-vision one first in the admin ordering, the composer showed the wrong model, sent the wrong model, and told the user images *would* be sent when they would not. It now resolves through default_model(), the same path /start uses. Every server-side test passed throughout, because the bug was entirely in the wiring between template and browser. Added tests that serialise the rendered form the way a browser does -- every named input inside <form> -- and assert file_ids is among them and the image reaches the model as a content part. Verified they fail with the old markup restored, then pass again. Confirmed end to end against gemma4-e4b-q8: given a drawing, it replied "Left: Green Circle / Right: Orange Triangle". 220 tests, ruff clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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75edae039b |
Split the model admin into a list and a page per model
/admin/models rendered a full edit form for every model. With eight that
was merely long; with a hundred it was unusable, which is the report.
The list is now compact rows only -- avatar, name, badges, position,
reorder buttons, Edit link -- with search across id and display name,
filter tabs (All / Enabled / Disabled / Pinned / Restricted, each with a
count), a connection filter, and pagination at 40. Filters are links, so
a filtered view is a real URL you can keep. Editing moved to
/admin/models/{id}/edit, one model per page, with Previous/Next links so
a freshly imported connection can be tidied without returning to the
list each time.
Measured with 128 models: the list is 73 KB showing 40 rows over 4
pages, and a detail page is 17 KB. The old page would have rendered all
128 forms into one response.
Reordering needed rethinking at that size too. Up/down is fine for
nudging a model one place but hopeless for moving it sixty, so the
detail page has a position field you type into; the value is clamped and
a non-numeric one is ignored rather than throwing. The move buttons take
a `back` field so they return to whatever filtered, paginated view they
were pressed on instead of dumping you at page 1.
Also adds a select-all checkbox for the bulk bar, scoped to a container
selector rather than the page so a future list can carry more than one.
212 tests, ruff clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Jaroslav Beneš
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29db54960e |
Fix bulk actions, create chats lazily, rework the UI
Seven reported problems.
**Bulk model actions 404'd.** /admin/models/{model_id} was registered
before /admin/models/bulk, and FastAPI matches in registration order, so
"bulk" was parsed as a model id. Moved above the parameterised route,
with a comment saying why, and a regression test.
**Empty chats piled up.** There is now no endpoint that creates one.
"New chat" is a link to /chat, which renders a composer with no row
behind it, and POST /api/chats/start writes the chat together with its
first message. Opening one and walking away leaves nothing.
**Pinning meant two different things.** The picker is now always in the
administrator's position order; pinned models get shortcuts in the chat
sidebar and nothing else. A picker whose order silently differs from the
admin screen is just confusing.
**Model images were missing in chat.** Assistant bubbles now show the
avatar of the model that actually wrote the turn -- which is not always
the model the chat is set to now -- falling back to the LLeMbas mark.
The picker shows it too.
**No global or per-model system prompt.** Three layers now: instance
(Admin -> General), model (Admin -> Models), chat. Precedence, not
concatenation: most specific wins outright. Stacking them reads well in
a settings screen and badly in practice, because two layers that
disagree give the model contradictory instructions and nobody can tell
which is losing. The chat panel shows the inherited prompt as
placeholder text so "leave empty to inherit" is not a guess.
**Alignment and button sizing.** Added --control-h and friends to
tokens.css; every button, input and select takes its height from them,
so a mixed row is flush by construction rather than by per-instance
nudging. Icon buttons are square at that height. Added .btn-row,
.card__header/.card__footer and .grid so pages stop carrying inline
styles, and moved every admin page onto them.
**Settings needed structure.** The user settings page is now tabbed
(Account / Models / Appearance / Security) using radio inputs and
sibling selectors -- no JavaScript, and the browser keeps the chosen tab
across a re-render.
Caught while checking: the chat.css surgery had deleted the attachment,
chip and dropzone rules. Restored, and there is now a check that every
literal class used in a template has a CSS rule.
197 tests, ruff clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Jaroslav Beneš
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d90195015c |
File attachments: images for vision, PDFs and text into the prompt
Drag, paste or pick a file in the composer. Images go to vision models as multimodal content parts; PDFs and text files have their content extracted and placed in the prompt. Verified end to end against gemma4-e4b-q8 on llama-swap: given a drawing and a text file, it named the red square and blue circle and read the number out of the document. Type is decided by inspecting the bytes, never the filename or the browser's Content-Type -- a .png full of text is stored as text. Images are downscaled to 1400px and re-encoded: a phone photo is several megabytes of base64, which is slow and a large slice of the context window. PDF text is extracted once, at upload, and stored; re-extracting per request would let a reply change because a parser was upgraded. Design points worth keeping: - Images are only sent to models an administrator has marked `vision`. This is not graceful degradation -- most endpoints reject the entire request rather than ignoring an image part. A plain text turn stays a plain string for the same reason: the list form 400s on endpoints that do not implement it. - Images reach the model as base64 data URIs, not links. A local endpoint has no route back to LLeMbas, and a hosted one has no credentials for it. - Non-images are served Content-Disposition: attachment with nosniff, so an uploaded .html can never execute in this origin. Stored names are random; the uploader's name is a label and never a path. - Uploads are unbound until the message is sent, which is what lets a file be removed beforehand. claim() only takes unclaimed rows owned by the sender, so a forged id cannot pull in someone else's file. Abandoned uploads are swept at startup. - A scanned PDF says so rather than silently contributing nothing, and truncation is declared to the model in the document tag so it can admit it did not see page 400. - "Here, look at this" with no words is a legitimate turn, so a message is only empty when it carries neither text nor files. Also fixes auto-titling, which read message["content"] as a string and would have broken on the first multimodal turn. 186 tests, ruff clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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1d3f6c450b |
Users, groups, permissions, model settings and reasoning display
Four features, plus the schema machinery they needed. **Schema sync.** The first live instance had data in it, and create_all only creates missing *tables* -- a new column silently never appeared. db/migrations.py now diffs the declared models against the database and ALTER TABLE ... ADD COLUMN for what is missing, deriving a backfill default from the column type (SQLite refuses a NOT NULL column without one, and a Python-side `default=dict` cannot be expressed in DDL). Verified against a copy of the live database: eight changes applied, all rows preserved, second run a no-op. Renames, drops and retypes are still manual and say so. **Permissions.** A flat set of named booleans: an instance baseline widened by each group the user belongs to. A group grants and never denies -- with denies, "why can this user not do X" cannot be answered without simulating every group. Admins bypass entirely, because an admin can grant it back to themselves in two clicks and pretending otherwise is theatre. Model *access* is separate: public, or granted to groups. The picker is not the boundary -- switching a chat to a model you cannot reach is a 403. **Model settings.** Ordering, pinned-first, an instance default and a per-user default, display names, descriptions, capability flags, and uploaded images. Images are stored and served locally rather than by URL: a remote URL makes every page render a request to a third party. Uploads are validated by magic number, not the declared content type, and stored under a random name. Models with no image get a generated initial whose hue is derived from the model id, so it is stable. **Reasoning display.** Streams into its own collapsible block above the answer, labelled "Thought for 14 seconds", collapsed once finished, and never replayed as context on the next turn. Two sources: the reasoning_content delta field, and <think> tags inline in content -- the latter needs a streaming splitter because the tags arrive split across chunks. Models emitting no reasoning show nothing, via a :has() rule rather than JavaScript. Verified against qwen35-9b on llama-swap: 694 reasoning events, 52 answer tokens, cleanly separated. Two bugs found and fixed while testing: - A bare `Mapped[list]` relationship is treated by SQLAlchemy as a scalar and returns None instead of []. It needs the element type. - FastAPI substitutes the default for an empty form value, so with `x: str | None = Form(None)` a submitted `x=` is indistinguishable from an absent field. That silently broke clearing a system prompt or a temperature. update_chat now reads the raw form and checks key presence. 143 tests, ruff clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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9179461bfe |
Add registration toggle and password change; genericise deploy
Two things the running instance needed. **Registration toggle.** Admin -> General, backed by a new settings table group rather than the environment. LEMBAS_ALLOW_SIGNUP now seeds only the initial value: once an administrator saves the setting, the stored value wins. The alternative -- environment always winning -- means a toggle in the UI silently reverts on the next restart, which is worse than not offering one. Closing registration also removes the "Create one" link from the sign-in page, so the link never leads somewhere that refuses. **Password change**, on the user settings page. Changing a password revokes every other session and immediately re-issues a cookie for the current one: if the reason for the change is that somebody else knows the password, leaving their session alive defeats the point, but signing the user out of the tab they are standing in is merely rude. **deploy/ is now host-agnostic.** This repository is public, so the unit and vhost became templates with __PREFIX__ / __SITE_HOST__ / __APP_PORT__ substituted at install time, and every path, hostname and port moved to environment variables. REPO_URL defaults to the checkout's own origin so a fork deploys itself. Machine-specific values belong in private notes, not here -- CLAUDE.md now says so. 83 tests, ruff clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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0f44e8d24c |
Working chat: auth, connections, streaming, folders
LLeMbas now runs end to end. Register, add an OpenAI-compatible connection, and hold a real streaming conversation organised into folders. Verified against the local llama-swap instance. Streaming is the one genuinely tricky part. Sending a message returns two HTML fragments -- the user bubble and an empty assistant bubble carrying an sse-connect -- and that attribute is the ONLY thing that starts a generation. Rendering an incomplete assistant message as a streaming shell falls out of the same template, which means loading a page whose last reply never finished simply picks it up again. Details worth knowing about, each commented where it matters: - SSE payloads are split across several data: lines. A raw newline in one data: line truncates the event, which shows up the first time a model emits a code block. - Markdown is rendered server-side by the same helper for both the page and the final streamed frame, so the two cannot disagree. The fence renderer is replaced outright rather than using markdown-it's highlight option, which re-wraps output in a second <pre>. - escape_text is html.escape, not nh3.clean_text: it escapes character by character, so escaping stream chunks separately equals escaping the whole string. - The stream opens its own session via session_scope(); it outlives the request handler and the dependency-scoped session may be closed. - Deleting a folder keeps the chats inside it (FK is SET NULL). Losing a conversation to a mis-clicked folder delete is unforgivable. - Login failures use one message for "no such account" and "wrong password" so the form cannot enumerate registered addresses. Also adds deploy/ for the gamebox install at https://chat.lan: system unit, nginx vhost with buffering off (buffering on turns streaming into one lump at the end), and install/update scripts following the same service-user and /srv bind-mount conventions as llama-swap and comfyui. 70 tests, ruff clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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Jaroslav Beneš
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5ef2af6a9f |
Scaffold project, data model and artwork
Establish the LLeMbas foundation: FastAPI/Jinja/SQLite layout, the ORM schema, and the original SVG identity. Notable decisions, all recorded in comments at the point they matter: - No Alembic. SQLite only, schema created at startup, so models carry a few columns nothing reads yet (Message.parent_id for branching, content_parts_json for multimodal turns). Adding them later to a live database without migrations is the painful path. - Sessions are server-side rows keyed by a SHA-256 of the cookie value, not JWTs, so logout and bans revoke access immediately. - Upstream API keys are Fernet-encrypted with a key derived from LEMBAS_SECRET_KEY. decrypt() fails soft to "" so rotating the secret degrades to re-entering keys rather than crashing the admin UI. - Artwork is generated by scripts/build_artwork.py rather than hand-drawn per file: the mallorn leaf appears in the icon, favicon, lockup and banner, and one source is the only way those stay in sync. The wordmark is Source Serif 4 (OFL) converted to outlines, because a README banner cannot load a webfont and <text> would render in whatever serif the viewer happens to have. - Icons live in a template partial, not assets/, because same-document <use href="#id"> is universally supported and the cross-document form is not. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |