Event triage is the one system agent whose right cadence depends on who it
runs for: it fires on inbound events, so someone on a dozen mailing lists
has something waiting on nearly every tick while a quiet account has
something waiting almost never. A single instance-wide interval serves one
of them badly, and the observed failure is the first: the agent starts on
practically every pass.
An admin can now set a per-person interval on that user's page (Users ->
the person -> Event triage). Empty means "follow the instance setting",
which stays the state nobody has a row for.
- New registry table `system_agent_user_settings(agent_id, user_id,
interval_secs)`. A row is an override and its absence is inheritance --
no sentinel value, no row seeded at user creation, clearing the field
deletes the row. Registry rather than the user's own file because the
writer is the admin and a member's database is unreadable unless they
happen to be logged in; a setting that could only be changed during its
subject's session would not be a setting. Keyed by agent_id though only
one agent uses it, so a future agent's schedule is not a schema change.
- `SystemAgent` gains `interval_secs_for(user_id)`, which `is_due` now
measures against, and `shortest_interval_secs()`. Both default to the
existing `interval_secs`, so every other agent implements nothing. The
second is the non-obvious half: `base_tick` sleeps for the shortest
interval any enabled agent asks for, so without it an override below the
instance value would be rounded up to it -- an override that works when
it lengthens and silently does nothing when it shortens.
- `GET/PUT /api/users/{id}/event-triage`, admin-gated, minutes on the
wire, null to clear. Nothing rides the bus: the scheduler re-reads the
interval every tick and due-ness is counted from the user's own last
attempt, so a change lands on the next wake-up with no push.
Both helpers fail open onto the instance value -- an unreadable registry
must not turn into an agent that stops running for someone.
Docs: docs/system-agents.md gains the per-person section and no longer
reads as if the interval were one number for everybody.
/sethome answered "no such table: config" from every surface. ChatHub is
owner-bound, so its pool is a {userid}.db, and `config` is a registry
table that only exists in system.db — the write had no table to land in.
The visible half was the lesser one. The notification consumer resolves
the home source before it delivers anything, and on an error it dropped
the batch: every `notify` from a background agent and every cron-job
completion has been discarded, silently, for as long as the hub has been
per-user. That error path now degrades to the default home instead — a
batch that got that far is data nobody can recreate, and the destination
is the one thing there with a sane fallback.
Where the setting belongs was never in doubt: one member choosing
Telegram must not move anybody else's notifications, so it is owner
state and it goes in their own file. The new owner table is `user_config`
and it deliberately does not reuse the registry name. The two hold
different namespaces — instance settings the admin owns versus one
person's own preferences — and a table called `config` in both files
would have turned this exact mistake into a silent read of the other
scope, which is strictly worse than the loud failure that revealed it.
Additive, so no migration: open_user_pool re-applies the owner schema on
every unlock, and the table appears at each user's next login.
open_user_pool ran only the key probe, so ensure_column never reached
pre-existing {userid}.db files: users created before an additive column
(e.g. chat_sessions.is_open) was introduced hit 'no such column' at
their next login. create_owner_tables is idempotent, so running it at
unlock lands additive changes per user, at the only moment an encrypted
file is readable.
Reopening the app closed every project tab: the copilot's tab bar lived in
RAM, so a reload dropped it and each conversation had to be found again from
its project board.
The set of open tabs is now a column on the session row, `chat_sessions.is_open`
(additive, `ensure_column`), restored by `GET /api/sessions/open` and written by
`PUT /api/sessions/{id}/open`. Not localStorage: that store is per-origin, so on
a shared laptop one member's tabs would greet the next, whereas the owner table
sits in their own encrypted file and follows them to another device. Which tab
is *selected* stays in sessionStorage — that one is genuinely per window, and a
shared value would have two windows fighting over it.
`is_open` defaults to 0 and `chat_sessions::create` never sets it: every `/new`
leaves its predecessor behind and every system-agent pass mints a row, so the
opposite default would restore a bar full of conversations nobody opened. Only
the copilot writes the column, at the moment it opens the tab. A reset moves the
flag rather than copying it — `POST /api/sessions` now returns the new id and
`new_session` carries it, and the old row is closed as the new one opens, or the
source would restore twice and a later close would clear the stale row.
Closing a tab clears the flag and nothing else: the conversation is kept and
comes back with its history when the project is reopened.
The first AgentScope::PerSubject system agent, and the reason that scope
exists. Once a night, for each person with a supervision edge, it reads every
message that person and the assistant exchanged since the previous review —
across all their conversations — and writes one report for the people who
supervise them.
Schema (all registry except reports):
- supervision(subject_user_id, supervisor_user_id): the generic §0.1 edge,
answering both 'whom does a background agent look at' and 'who may read
what it produced', with real FKs so deleting a user cascades both ways
- system_agent_coverage(agent_id, subject_user_id, covered_through): the
per-subject watermark that makes 'everything since last time' a window —
neither system_agent_runs (history for humans) nor system_agent_state
(advances before the work), and advanced only on a completed pass so a
crash re-covers instead of skipping
- reports (owner schema, the second two-homes table after memory_docs):
instance rows land in system.db, deliberately cleartext to the box owner,
who is the intended reader (§2); the subject cannot see them structurally
The pass reads the subject's database inside a supervisor's runtime, so the
ephemeral session and run row land in the watcher's file; iteration is over
subjects, so two parents watching one child get one review; and the subject
need not be logged in when their space is unencrypted — via the new
UserManager::open_unencrypted, which refuses an encrypted user outright (no
key to be had) and never registers the pool as unlocked.
The agent declares the new AgentMeta flag allow_tools: false, so its turn
gets an empty tool registry — nothing for a prompt injection in the
transcript to call — and produces its report as its final assistant message,
read back from chat_history and parsed (NOTHING_TO_REPORT sentinel, no row on
quiet days). chat_history::conversation_window is the transcript query; its
four filters (non-ephemeral, depth 0, non-synthetic, non-empty) each guard a
specific way the review would otherwise be wrong, and tool calls are absent
by construction.
Cadence is Run at (hour) rather than Interval — 4am local by default — with
due-ness answered inside has_work against the coverage watermark, so a
machine off for three days covers the whole stretch in one pass. Reports
announce ReportCreated on the system bus (no subscriber yet). run_ephemeral_turn
gains a per-pass system_substitutions map, which the review uses to hand the
model the subject's profile under __SUBJECT_PROFILE__ — the system-context
substitutions describe the session owner, the wrong person here.
docs/system-agents.md gains the conversation review section; CLAUDE.md
documents the scope, the tables and the tool-less design.
The grant junctions (plugin_access, mcp_global_access, mcp_catalog_access)
stay deny-by-default internally, but the rows are written for you at two
moments and never again:
— an object is CREATED: PluginManager::update_config (first toggle —
the plugins row's birth), mcp::catalog_upsert, marketplace install,
mcp::global_enable
— a user is CREATED: UserManager::register_user
Who is included is the role attrs.auto_grant flag (default true, so every
role predating the attribute behaves like an adult member). The seeded
Children preset sets it to false, which is the whole reason the attribute
exists. Admins are skipped because they hold everything implicitly. The
role editor now exposes the switch as a checkbox.
New crate module: db::access_defaults (seed_new_object, seed_new_user,
set_grant_by_default). Additive columns: grant_by_default on plugins,
mcp_catalog, mcp_global_servers (INTEGER NOT NULL DEFAULT 1).
On the frontend the Roles page gets a "New extensions" column and
checklist; the user's plugin/connector rosters are unchanged. i18n:
en, fr, it.
Docs: new docs/access.md for the assistant, plus index.md cross-link.
CLAUDE.md updated with a full default-access section.
Granting was a checklist of every user on each plugin's page, so "what may
this person use?" meant opening every plugin in turn — and the answer lived
on N pages while the connector half of it already lived on one. Both grant
sections now sit together on #users/{id}: same row list, same disabled chip,
same replace-the-whole-set save. The plugin's own page keeps a read-only
roster of who holds it, linking back to each person.
- db: plugin_access::set_for_user, the per-user twin of set_for_user on
mcp_catalog_access; set_access stays as the inverse read model
- PluginManager: list_grants_for_user / set_grants_for_user, which omit and
reject manages_own_access plugins (a box that controls nothing is worse
than no box)
- GET/PUT /api/users/{id}/plugins, mounted next to /users/{id}/connectors;
PUT /api/plugins/{id}/access is gone, GET remains as the roster
No push after the write, unlike a connector grant: that one gates a runtime
snapshotted at login, while a plugin grant is re-read from plugin_access on
every request that depends on it (sidebar pages, /plugins/mine, and each
inbound channel message), so a revoke lands with no bus event.
Docs updated with where access is granted, and why mobile-connector is
absent from that list.
TIC said nothing about what the agent does, and named the wrong thing: the
tick belongs to the scheduler, which is generic and lives outside it. The
agent's only decision is whether an incoming event deserves an interruption
— it sorts, it never acts — so it is now event-triage, matching the
functional naming of the two memory lints.
- agents/tic/ -> agents/event-triage/, module tic/ -> event_triage/,
TicManager -> EventTriageManager, TicConfig -> EventTriageConfig
- agent id and chat source: "tic" -> "event-triage"
- config keys: tic.* -> event_triage.*, and the config.yml section tic: ->
event_triage: (greenfield: previously set values fall back to defaults)
- i18n en/it/fr: Event triage / Triage eventi / Tri des evenements; dropped
the stale "TIC sessions" mention from the debug-pages description
- docs/system-agents.md, docs/index.md, docs/settings.md, CLAUDE.md, SKALD.md
Memory is kept as a maintained wiki, and a wiki nobody prunes rots. This adds
the scheduled maintenance pass, and generalises the machinery TIC had grown so
that a background agent is a trait impl rather than a loop of its own.
Two lint agents, not one. The private pass runs per user over `user-memory/`
and reports to them; the shared pass runs once over `shared-memory/`, where the
interesting defect is different — a note failing the table rule, i.e. private
business written where every member can read it. It names the note and the
category without repeating the content, since restating it spreads the very
thing being flagged. Both share `agents/common/memory-lint.md`.
Both are read-only, and that is enforced twice: the prompt says report-never-
repair, and `shared-memory/*` writes are already `@fs_write require`, so an
agent that tried to fix something would raise an approval card from an
unattended pass, which is auto-denied. Read-only is the only design that works
here, not merely the safe one.
One scheduler for cadences three orders of magnitude apart. TIC runs every few
minutes, a lint weekly — the case that tempts a second loop. It stays one
because the wake-up decides nothing: `base_tick` picks only how often to look,
and whether an agent runs for a user is `is_due` against persisted state.
Due-ness moves out of the run log into a new owner table, `system_agent_state`.
The two answer different questions: the run log skips idle ticks so it stays a
history rather than a heartbeat, while scheduling needs every attempt. Reading
due-ness off the log would re-run an idle agent on every tick and never bring a
weekly one due once its last productive run aged out. Persisting it is also
what makes a long interval survive a restart — an in-memory deadline is fine at
TIC's scale, but a weekly agent on a box rebooted every few days would have it
re-armed before it ever fired.
The shared store belongs to nobody, so `AgentScope::Instance` runs that pass as
the first unlocked admin. An ownerless run would write its trace into system.db,
which the runs endpoint shows to nobody by design, and its notify() would have
no recipient; attributing it to a user keeps the whole per-user surface working
unchanged.
Settings move to where the run log is. `ConfigSet` gains `owner`, so placement
is data on the set rather than a page that knows set names; the System agents
page grows one tab per agent holding its description, its settings (admin only)
and its runs — "why did this do nothing last night?" is half a schedule
question and half a log question. The form is shared with the Config page, and
writes still go through PUT /api/config/{key}.
Fixes an authorization gap found on the way: neither /api/config handler took
the caller into account, so any authenticated session could read and write
instance-wide config. The sidebar hiding the page is presentation, not access
control. Both are now admin-gated.
Reframe TIC from an ownerless global loop into a per-user system agent.
The events it reads live in each user's own encrypted mcp_events, the
connectors that produced them run in that user's container, and the
notifications go to that user's hub — so the previous design (built
against the ownerless Conversation bundle, writing into system.db and
notifying a hub with no subscribers) was inert by construction.
Core changes
- TicManager owns no timer and no user list. It now exposes
run_for(user_id, pool, sessions, hub): one tick for one user, over
deps unpacked from that user's UserContext. Removed from the
Conversation bundle; Skald::tic_manager() is gone.
- New spawn_system_agents in wiring.rs: one instance-wide loop, spawned
post-construction with a Weak<Skald> (like spawn_user_lifecycle).
Each pass walks the directory and runs TIC for one user at a time —
sequential, because a pass is N container round-trips and N LLM calls
nobody is waiting on. A ConfigKeyUpdated on the interval key cuts the
current wait short; enabled is re-read per pass.
- A user whose database is still locked is skipped (normal, not an
error): the pool is the unlock token, so a user who hasn't logged in
since restart has no readable events and nowhere to record a skip.
- The configured tic.security_group is re-checked per user through
run_context::reconcile_group_for_user — a restricted member never
gets a tool set their role wouldn't grant; unconfigured starts from
role_default_run_context, never None (None = catch-all = wider).
- New system_agent_runs owner table (no user_id column — the file is
the owner): start/finish split so a crash leaves a visible 'running'
row, swept to 'failed' by the next start; safe because the scheduler
is sequential and single-instance. An idle tick writes nothing.
- counting_notify wraps the notify tool so the run log can report
notifications emitted without the tool knowing it's counted.
- The session's event channel is drained by a spawned task instead of
a dropped receiver — the translator awaits its sends and would wedge
at capacity.
EventLog::{Persist,Discard} on McpManager::new
- mcp_events is an owner table and its only reader (TIC) is per-user,
so an event is something that happened to someone. The per-user
runtime gets Persist; the ownerless global runtime gets Discard (its
pool is system.db, rows would be unattributable and unread).
API + UI
- GET /api/system-agents/runs: the caller's own run history, scoped
through require_context with no admin override (same promise as the
rest of the private pool).
- web/components/system-agents.js replaces tic-sessions.js. The old
#tic debug page inferred runs from leftover ephemeral sessions; the
new #system-agents page (sidebar group 'extensions', visible to
everyone — the data is the caller's own) reads the real run log.
- i18n: tic.* keys replaced with system_agents.* in en/it/fr.
Docs
- New docs/system-agents.md (user-facing: what TIC does, why it runs
per person, why a run can be missing). Updated docs/settings.md and
docs/index.md.
- agents/tic/AGENT.md reframed per-user: events are that person's,
memory is user-memory/ (private) — never shared-memory/.
- CLAUDE.md records the system-agents design and the EventLog seam.
Remove the scope system end-to-end (llm_models.scope column, agent meta
scope field, scope-based tier in model selection, UI checkboxes/pills):
it was only a soft ranking hint, had drifted (6 UI scopes vs 3 used by
agents, 'general' not even selectable) and duplicated what strength
already decides. Strength stays the single AUTO-selection axis.
Compaction: the summary model is now pickable from the Settings page
via a new PropertyType::LlmModel config property (registry key
compaction_model), instance-wide and live (no restart). Fallback chain:
explicit pick -> compaction.strength from config.yml -> priority order;
a deleted configured model degrades to AUTO. ContextCompactor reads the
key at compact time through GlobalConfigManager.
Replace the old session_mcp_grants/stack_mcp_grants table pair with
a single activated_tools table that anchors each activation at the
assistant message_id that triggered it. The durable write moves from
the activate_tools tool itself to the round loop (handle_tool_call),
which has the message_id the DTL serializer positions injected tool
blocks against.
Introduce DtlMode (None / AnthropicToolReference / KimiSystemTools),
resolved per model from capabilities (opt-in via tool_search)
combined with the provider's dtl_format(). The message builder inserts
Kimi system {tools} blocks at the activation position, or emits
Anthropic tool_reference markers on the tool result. The tool-def
surface (all_tool_defs) switches shape: Anthropic declares everything
deferred; Kimi omits activated tools from the top-level array (system
takes over); None keeps the old grant-set logic.
Anthropic client: accept structured system arrays (cache_control on
the static block when DTL is active), carry defer_loading through
conversion, emit tool_reference blocks on result messages. Prompt
caching enabled exactly when DTL is active (anthropic provider).
MCP server list in the prompt is now a static catalogue (not split
Available/Active) — the split invalidated the cache on every activation.
Groundwork for providers.yaml dtl: key; Moonshot/Kimi providers wired
with kimi_system_tools and the k3* enrich now adds tool_search.
Compactor re-anchors activations whose message was compacted away.
When the resolved model declares an input modality (vision → images,
video, document → PDFs), read_file now hands a binary media file back to
the model as native input instead of failing on non-UTF-8 bytes.
- ToolResult gains a Media { text, media } variant carrying MediaRef
{ host_path, mime }; the tool message keeps only the text note, the
bytes travel out of band in a new additive chat_llm_tools.media column
(mirrors preview_old/new).
- read_file sniffs the resolved host file; a recognized medium becomes a
Media result (with a neutral note), everything else keeps the textual
path. Capability gating lives in the message builder, so read_file
never needs the model caps and degrades cleanly on a text-only model.
- MessageBuilder inlines current-turn tool media as a synthetic user
message right after the tool-result group (media_turn_start boundary,
so older turns are never re-billed), reusing media.rs primitives via a
new inline_paths helper that contains against the caller's workspace
roots. OpenAI forwards the parts verbatim; the Anthropic client now
also translates the PDF `file` part into a native `document` block
(image_url → image was already handled).
- read_file's description is annotated per serving model in
call_llm_round, listing the formats it can open, so the model knows
reading one shows it the content.
Tests: media sniff (PDF), PDF file-part build, inline_paths containment
+ capability gating, capability hint, read_file media-vs-text, Anthropic
file→document, and the owner-schema-stands-alone check with the new
column.
Rework projects from single-user leftovers into shareable endeavours.
- DB: move `projects` from the owner bucket to the registry (system.db,
not encrypted); add `owner_user_id` + `slug` (drop free `path`); new
`project_members(project_id, user_id, can_write)` mirroring
`shared_folder_members`. Drop `project_tickets` entirely. Only user↔agent
conversations stay encrypted (per-user DB) — each member keeps a private
project chat. Registry home dissolves the cross-DB-FK problem.
- Filesystem/container: on disk `{WD}/projects/{owner_userid}/{slug}`,
agent/container path `projects/{owner_username}/{slug}`. Two-segment routing
in UserFs (ProjectMount + host_base_and_tail arm) and a second loop in
build_user_fs; read-only members get a :ro mount. Reuse the shared-folder
remount machinery (refresh_user_shared_folders -> refresh_user_mounts).
- Remove the ticket system: ProjectTicketManager, UserContext.tickets, its
wiring, and the project_tickets references in scheduled_jobs/cron.
- API: repoint handlers to the registry pool + membership scoping. Sharing is
self-service — owner or any write-member may add/remove members and set
read/write; only the owner deletes; the owner cannot be removed. New
POST/DELETE /api/projects/{id}/members[/{user_id}]. Seed `@fs_any allow
projects/*`; build_runtime_run_context sets working_directory to the agent
path and drops the host-path allow_fs_writes.
- Frontend: create form without the free path field, owner/read-write badges;
the detail page becomes header + description + sharing panel + Open chat + a
file-explorer placeholder (the future primary surface). i18n en/it/fr.
Re-architects MCP from one owner table + agent-written registration into an
admin-curated catalog with two runtimes unioned per session, surfaced in the UI
as "Connectors" (mcp/schema stays neutral, §0.1).
Two runtimes behind one seam (§7):
- Global runtime: shared, stateless connectors (web-search, Tavily…) on the
HOST, connected at boot from mcp_global_servers, access-filtered per user via
mcp_global_access.
- Per-user runtime: a user's activated connectors run INSIDE their container,
started at first login from mcp_user_servers and living until restart (§9);
docker exec -i children die via kill_on_drop when the UserContext drops.
- McpProvider trait (mcp/provider.rs): the session round-loop never learns which
runtime owns a server. McpManager implements it directly (inert ownerless
bundle); UserMcpView implements global ∪ user with an accessible_global
snapshot. Both share McpManager::connect_all; McpServerSpec +
global_row_spec/user_row_spec turn a DB row into a connectable spec.
- mcp-client: McpServerConfig.launch_in runs a stdio command inside a container
via docker exec -i (set at runtime, never parsed from config).
Authorization is a capability on the role, not `if role==admin` (§0.1/§14):
role_capabilities table + db/role_capabilities.rs — register_remote and
register_local_from_catalog are self-service (seeded on every new role), while
register_local_script and manage_catalog are admin-only. admin holds every
capability by construction. This removes the agent-facing register_mcp/delete_mcp
tools and the mcp kinds of list_items/toggle_item, closing the §14 RCE vector.
Schema:
- Registry: mcp_catalog (vetted templates — schema only, no live creds),
mcp_global_servers + mcp_global_access, role_capabilities.
- Owner: mcp_user_servers (per-user activations; api_key encrypted at rest,
catalog_name a bare TEXT snapshot, never an owner→registry FK).
- Drops the old owner table mcp_servers.
API + UI: src/frontend/api/mcp.rs (admin catalog/global/access + user
available/activate/activated, all capability-gated via require_cap);
web/components/connectors.js (<connectors-page>) renders the user view always
and the admin view for role_id === 'admin'.
Deferred: interactive per-user auth (OAuth callback / QR / SSH elicitation, §15)
— only none/api_key wired; no boot seed of catalog presets; per-(user, session)
MCP grant model still open.
Realizes blueprint §6: each user gets a permanent Docker container
(skald-{userid}, our own skald-runtime image with python+node) as their
execution sandbox. Docker is now a hard requirement — a missing daemon fails
Skald::new and the process exits at boot.
- ContainerManager (crates/skald-core/src/container/): docker availability
check, builds skald-runtime from the embedded Dockerfile, reconciles one
running container per active user at boot, stops them at shutdown, and
ensure/remove on user create/delete. Shells the docker CLI (no client crate).
- UserFs (core-api): pure value type carried in ToolContext, mapping the agent's
single namespace — ~/ → homes/{userid}, shared/{X}/ → shared/{X} (membership),
user-memory/ + shared-memory/ → SQLite — to host and container paths.
- execute_cmd now runs inside the caller's container via `docker exec`.
- fs-tools resolve every physical path through UserFs to the per-user host
workspace, host-side, with fail-closed symlink/`..` containment
(resolve_host_path: canonicalize + prefix-check). grep_files resolves its root
the same way but stays disk-only.
- shared_folders + shared_folder_members (registry, junction table with
can_write) back the shared-folder membership that drives both the container
mounts and the shared/{X} routing.
- Threading: UserContext.fs → ChatSessionManager → handler → ToolContext.fs.
Per-user MCP servers do not yet run in the container (next round).
Add a virtual memory namespace backed by SQLite, surfaced through the
fs-tools, with private (per-user) and shared (system) stores.
Storage
- `memory_docs` owner table + external-content FTS5 index with sync triggers.
- `db/memory_docs.rs` accessor: get / upsert / list / search (bm25+snippet) / delete.
Routing (tools/fs)
- `classify_memory` splits paths on the raw first component; `..` clamps inside
the store, never escaping to disk.
- read/write/list/edit/insert/replace/search_file route `user-memory/` to the
owner pool and `shared-memory/` to the system pool (a singleton captured in
`register_all`); every other path stays on disk. Each tool extracts a pure
transform shared between its disk and memory paths.
- New `memory_search` tool over the FTS index (scope private/shared/all),
with a sanitised FTS5 query. grep_files stays disk-only.
Approval
- `user-memory/*` allow (read+write); `shared-memory/*` reads allow,
writes require approval so the agent can't silently push one person's data
into shared memory. `memory_search` allowed via a path-less rule.
- migrate away the old `memory/*` and blanket `shared-memory/*` rows.
Prompt injection
- `MessageBuilder::load_inject_memory` reads `user-memory/` (owner pool) and
`shared-memory/` (system pool) inject entries from SQLite; disk paths
unchanged. The system pool is threaded ChatSessionManager -> handler ->
MessageBuilder.
- main and project-coordinator inject `user-memory/index.md` +
`shared-memory/index.md`; common/memory.md rewritten for the two stores.
- New skald-setup crate: interactive first-run wizard that creates the
admin user, prompts for encryption choice and password
- Auth system: session-based login/logout with cookie, guard middleware
- Roles API: CRUD for data-driven roles, seeded on first boot
- Users management API: create, list, edit, delete users
- Setup state API: check if first admin has been created
- Frontend: login-page, setup-page, users-page, roles-page, profile-page
components with corresponding CSS
- Topbar: avatar dropdown with profile link and logout
- Sidebar: nav entries for Users and Roles (admin only)
- Page shell CSS: layout support for the new pages
- build.sh: builds both skald and skald-setup binaries
- run.sh: runs skald-setup before the server loop
- CLAUDE.md: updated workspace layout and build/run docs
Two changes developed together in one session; they share the same module
structure (db/mod.rs, the core lib root) and only compile together, so they
land as one commit.
## UserManager + per-user encryption (§9/§11)
New `users::UserManager`: owns the system.db pool plus a map
`userid -> SqlitePool` of unlocked databases. The pool *is* the unlock token —
its connect options carry the DEK as SQLCipher's raw key, so an open pool means
the key is in RAM until restart and dropping it re-locks (§9). Knows nothing
about cookies.
New `crypto` module: envelope encryption. A random 256-bit DEK encrypts
`{userid}.db`; `users.database_password` holds it sealed with AES-256-GCM under
`Argon2id(password, salt)`. The AEAD tag is the password verifier — one
derivation both authenticates and yields the key, so encrypted users store no
second hash. Cleartext users store the Argon2id output directly, compared in
constant time. Argon2 runs in spawn_blocking behind a 2-permit semaphore
(256 MiB per derivation).
- SQLCipher via `libsqlite3-sys` `bundled-sqlcipher-vendored-openssl`, pinned
<0.38 so it unifies with the one sqlx-sqlite links (a newer copy would apply
the feature to a SQLite sqlx never uses). OpenSSL is vendored and static, so
the binary stays self-contained.
- Schema split into `create_registry_tables` (instance-wide, no user key) and
`create_owner_tables` (one owner's content, identical in every file). No FK in
the owner bucket may reach the registry — enforced by a standalone test.
Dropped `chat_history.model_db_id` (write-only, and the only registry-crossing
key); moved `projects`/`project_tickets` into the owner bucket.
- Provisioning invariant: the file is written before the row, deleted after it,
so a crash leaves an orphan file, never a user without a database. `open_db`
never creates: a missing file is an error, not a silent empty database.
Not consumed yet: no login, call sites still use the shared system.db pool.
## Extract crates/skald-core
The headless core moves out of `src/` into its own crate; `skald` (server) and
the coming `skald-setup` are shells around it. Two dependencies on the shell
were inverted rather than dragged along, so the core names neither Tauri nor any
concrete plugin:
- `Plugin::tools(self: Arc<Self>)` — plugins contribute tools through this hook
(sibling of `http_router`), so the core no longer downcasts to
`MobileConnectorPlugin`.
- `tools::restart::set_restart_handler` — the desktop shell installs its
teardown-and-respawn; the core defaults to the supervisor exit code. The core
loses its `desktop` feature.
- `boot`'s stdout formatter moves to the binary (`src/boot_format.rs`); the core
only emits tracing events.
All 79 core tests pass; the binary boots and serves in a clean directory, and
the mobile-connector tools still register through the new hook.
Daniele
dguiducci