Commit Graph

3 Commits

Author SHA1 Message Date
Jaroslav Beneš b8e7745311 An instance that can be somebody else's
A name, a tagline, a logo, a favicon and the launcher icons derived from it; the
Middle-earth strings as data; themes as token sets; and a stylesheet for what
none of that reaches. All four are on one page, in one settings group.

The snapshot is a Jinja global over a process-level cache, because render() has
no session and four render paths never reach it at all -- the sign-in page, the
error pages, the offline page and the SSE fragments. A context value would have
had to be threaded through every one and would still have missed those. It being
a global is also what lets mark() branch on an uploaded logo without any of its
six call sites learning about branding; the macro that renders the sidebar link
is called brandlink now, because a macro imported as `brand` shadows the global
for the whole template and took out every page at once.

Defaults in code and overrides in the database, as the prompt fragments do, with
one difference stated in the module: an empty fragment means off, an empty
flavour string means the shipped wording. And blanked rather than dropped --
settings_store.update merges, so an omitted key leaves what was stored last time
and "I typed the default back in" would store something different from "I changed
nothing".

A custom theme sets a handful of tokens and inherits the rest, and the
inheritance is a CSS fact: tokens.css matches [data-base="shire"] as well as
[data-theme="shire"], so a custom light theme lands on parchment rather than four
light colours on near-black. Values are validated on read rather than on save,
because a theme written straight into the settings table still has to produce a
stylesheet that parses -- a `}` in a value ends the rule and silently breaks
every rule after it. The soft variants are derived from the accent, or a changed
accent leaves focus rings in the old hue and reads as half-working.

/branding.css is a route, not an inline block: an external stylesheet has no HTML
context to escape from. The link carries a content hash, so a save is not left to
the browser's cache, and it is deliberately outside the service worker's precache
list, which is versioned by the release.

The instance name moved off /admin/general rather than being duplicated there.
An upgrade keeps it: the general row is read as a seed exactly while the branding
row has never mentioned the name, which is `key in row` and not `row[key] is
truthy` -- the two read alike would resurrect the old name underneath a cleared
one.

The theme list stops being a hard-coded pair in five places. Every failure mode
in that area is silent, so it is driven under a DOM stub as well as tested.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-06 15:42:25 +02:00
Jaroslav Beneš 17995c1275 Green instead of gold, and a leaf that reads at 16px
The brand accent was rune gold. It is now mallorn green: --gold becomes
--leaf in tokens.css and everywhere it resolved, and the mark's wafer is
the green of the leaves lembas travels wrapped in rather than the biscuit
inside. Yellow is left to mean exactly one thing in the interface -- a
warning -- instead of two.

Two knock-on choices the rename forced:

  - Code keywords move from the brand accent to --warning. Strings are
    --success, which is green; keywords in leaf green beside them is not
    a colour scheme.
  - --success itself leans teal now. Two greens a hue apart read as one
    colour rendered badly, and an unread dot has to be tellable from a
    brand badge at a glance.

The mark is redrawn, not just recoloured. The blade is ovate -- widest a
third up from the base, rounded where the stem meets it, drawn out only
at the tip -- because the old one was pointed at both ends and read as an
eye. It is also much larger relative to the tile: at 16px the silhouette
is all that survives, and a small leaf on a large tile is a green square
with a smudge on it. Veins sweep towards the tip and shorten as the blade
narrows. The score cross is thinner and fainter so it stays texture.

A single diagonal score was tried first and rejected: behind a diagonal
leaf it does not read as scoring, it reads as a line struck through the
mark.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-31 22:24:53 +02:00
Jaroslav Beneš 21001f2eb8 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>
2026-07-21 19:43:57 +02:00