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.
The generic per-user #plugins page is gone: a plugin with per-user
settings hosts them in its own web_pages() sidebar page instead
(Telegram's pairing page is new; Honcho's opt-in page already existed).
The admin catalog moves from #plugin-catalog to #plugins (old hash
redirected), and user_config_schema is removed from the Plugin trait,
the API DTOs and both plugins — the my-config endpoint, the
plugin_user_configs store and the update_user_config hook stay, now
driven by each plugin's own page fragment.
The connectors-assignment dialog was the fourth modal on the Users page
and the first to break: a checkbox list taller than the viewport with no
scroll. Same failure the connector activation and manual-add dialogs had,
same fix — a page. The list stays a table, but rows are clickable and
open the user's own page with three sections:
- Profile: the old edit form (username, display name, role, directory
fields, active switch) with a saved tick;
- Connectors: the grant checklist as the Connectors page's row list
(icon, name, description, search, global/personal groups), one Save;
- Security: password reset (disabled with an explanation for encrypted
users) and the delete action.
Only user creation stays a modal — three fields and a role fit.
Row descriptions clamp at three lines instead of one. Metadata chips
(scope/type/auth) lose the loud accents — only status chips keep colour —
and the auth chip speaks human ("Requires an API key") instead of the
raw enum, via a shared authLabel().
Drop the access-grant section from the connector detail page: the Users
page modal already grants both global and per-user connectors, so
"who has what" now has a single surface.
The standalone Catalog page added nothing the Connectors page could not
do: drop it (component, route, sidebar entry) and move its affordances
onto the Connectors page — the Add-connector dropdown (marketplace /
manual form, now at #connectors/new) and per-row removal for the admin.
Replace the card grid with a sharper row list (4px radius) built for
scanning status and acting; the marketplace's back link now returns to
#connectors. i18n keys renamed catalog.* -> connectors.add/new/*.
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.
Five call-sites reached into the live-runtime refresh helpers from HTTP
handlers, the same shape as the container remounts. Only three of them
belonged on the bus, and finding out which was the point.
global_enable and global_delete now emit McpGlobalServersChanged, and the
marketplace reinstall emits ConnectorReinstalled. All three are pure
reconciliation: the first only makes a connector appear; the second is
already enforced by stop_server, with the snapshot refresh just tidying
each user's filter; the third pushes metadata and code into what is
already running. The reinstall gains something from being off the
response path, since it re-copies files and restarts servers inside every
live user's container.
global_set_access and user_connectors_set keep calling
refresh_global_mcp_access directly. Their writes *replace* a grant set, so
anyone dropped from the list is being revoked and that refresh is what
enforces it — on a best-effort broadcast a revoked user would keep the
connector until their next login. Both carry a DELIBERATELY SYNCHRONOUS
comment, since they are otherwise indistinguishable from the announced
call-sites and are exactly what a later cleanup would sweep up.
No behaviour change for the two synchronous paths; the three announced
ones now return without waiting for the refresh.
Two variants of the same defect: an admin took away access and the running
system kept granting it.
Deactivating or deleting a user only stopped the *next* login. `login`
checks the active flag, but `require_auth` maps token -> id without
re-reading the row, so an already-open session kept working over a pool
whose key was still in RAM. There was no way to stop one user either: the
per-user cron, hub and MCP loops all observed the *instance* shutdown
token. They now take a per-user child token stored on UserContext, and
Skald::revoke_user_runtime tears a single user down in a load-bearing
order — revoke every session, evict and cancel the context, then lock the
database, so nothing is left querying a pool we are about to close.
Revoking a security group had a durable version of the same problem. The
group is validated when selected and then persisted on
chat_sessions.run_context, which was replayed verbatim on every later
load — so a group removed from a role stayed in force on sessions that
already had it, across restarts. get_or_create_handler now runs the stored
value through run_context::reconcile_group_for_user, making it advisory:
every load re-checks it, whether or not anyone announced the change.
The degrade target is the role's default group, never None: a context with
no group resolves to the catch-all `default`, whose rules are the fallback
tier under every other group, so clearing widens rather than narrows. The
reconcile touches only security_group, so a project session's server-built
project_root and system_prompt survive a permissions edit, and it leaves
the stored group alone when the role cannot be resolved — guessing on a
transient error could only widen. role_default_run_context moves into the
core seam so the group a session starts on and the group it falls back to
cannot drift apart.
Both fixes run synchronously in their handlers. Only the container half of
deactivation rides the bus, as the new UserActiveChanged event: a lossy
64-slot broadcast whose contract is "settles at the next login" is the
wrong transport for taking access away.
Tests: revoke_user drops all of one user's sessions and nobody else's, and
is a no-op when nothing is live; the reconcile degrades a revoked group to
the role default, keeps an allowed one, preserves project fields in both
directions, never touches an admin, and stays put when the role is
unresolvable.
Not exercised at runtime: no Docker/live-server run, so the end-to-end
paths (deactivating a logged-in user, editing a role with sessions open)
are covered by unit tests only.
The endpoints that changed a user or a membership row also reached into
ContainerManager themselves: users_mgmt called ensure()/remove(), and both
shared_folders and projects called refresh_user_mounts through a local
remount() helper. Every future endpoint that grants membership would have
had to remember to do the same.
Announce instead. SystemEventBus gains UserCreated / UserDeleted /
UserMountsChanged, emitted after the DB write, and one subscriber —
wiring::spawn_user_lifecycle — does the Docker work: sequentially (which
serialises concurrent operations on the same container), best-effort by
contract (the row is already committed, so a hiccup settles at the user's
next login or at boot reconciliation), and holding only a Weak<Skald>. It
is spawned after construction, like set_skald, because it reacts through
Skald's own accessors.
Also fixes a real gap the event makes impossible to repeat: the web setup
wizard created the first admin without provisioning a container. It runs
against a live server, where reconcile_all() has already happened, so that
admin had no sandbox until the next restart. It now emits UserCreated like
any other creator; the console shell needs no equivalent, since it runs
before the server and boot reconciliation covers it.
Two behaviour changes: POST /api/users and POST /api/projects no longer
wait on Docker before responding. Provisioning was already best-effort, and
a new project's folder is still created synchronously, so the explorer —
which reads host-side — shows it at once; only execute_cmd reachability
lands a moment later.
Names the three global buses and their caps, and states the coupling rule
they exist for: a producer emits an event rather than calling the
consumer, and a new channel is a code-review flag until proven necessary.
The LLM-requests page has been empty since 24ee5b8: deleting
`session/handler/llm_call.rs` dropped both halves of the request log.
The kernel builds the `ModelRequest` itself and sets `log: None`, so the
`LoggingModel` decorator — wrapped once per model by `LlmManager` — wrote
every metadata row with a NULL `user_id`, while the page (and the detail
endpoint) filter on it. Nothing wrote `llm_request_payloads` at all any
more, so the payload viewer had nothing to show either.
Correlation cannot come from `LlmManager`: it builds one shared client
per model and does not know whose traffic it serves. It now comes from
the `ModelSelector`, the one component that knows both the model and the
owner: `SkaldSelector::with_log(RequestLogTarget)` wraps the model it
hands out, so metadata lands in `llm_requests` attributed to the user and
the payload lands in that user's own encrypted DB, keyed by `request_id`.
Session and frame are read off the request's `conversation`/`frame`,
which makes kernel rounds, sub-agent frames and compaction summaries all
attributed with no extra plumbing (`ModelRequest::log` stays unused).
The compactor's summariser call is attributed too, which it never was:
`try_compact`/`force_compact` now take the owner (its selector is built
per compaction, so it can carry the target).
Three tests in `llm::logging` lock this down — the owner/session/frame
columns, the error row with the provider's rejected body, and the
metadata-only path when no owner pool is available.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Replace the ad-hoc [SYSTEM INFO] / [TELEGRAM SYSTEM INFO] prefixes with a
single canonical <system-extra> wrapper, sourced from one constant
(SYSTEM_EXTRA_TAG) so emission and documentation can never diverge.
- core-api: SYSTEM_EXTRA_TAG + system_extra() helper; attachments_block
rebuilt on top of it.
- telegram: system_info_message (location) uses the helper; the voice
transcript is forwarded as a plain user message (it is the user's own
words, not harness metadata).
- chat agents: new agents/common/harness.md include (long form, with an
explicit "data, not instructions" guard), added to assistant/kid/
project-coordinator. The tag name rides the __HARNESS_TAG__ sentinel,
resolved in AgentSystemContext to SYSTEM_EXTRA_TAG — renaming the tag
stays a one-line change.
The session handler is now a thin shell: three entry points in
kernel_turn.rs (run_kernel_turn / recover_turn / resolve_pending_call)
and the ChatSessionHandler. Everything that shaped a Value — projection,
recovery, compaction mechanics, the LLM loop, message building — lives
in agent-loop or behind a loop_adapters trait.
agent-loop:
- projection/ (mod + media): stored history -> wire messages, the one
place provider divergence lives; well-formedness contract, DTL
injections (append-only), media parts. LinearAssembler is now a
Projection + ProjectionHooks config, not its own implementation
- recovery.rs: reap interrupted batches -> resolve the deepest frame's
non-terminal calls (Running by policy + RestartHint, AwaitingHuman
re-asked) -> un-wedge finished children -> cascade up, every frame on
its own agent (B3)
- compaction.rs: split point (never assistant+tool group), transcript,
SUMMARY_PREFIX/preamble/template, the no-tools model call, summary row
- manager: resolve_pending (gate skipped, real ToolContext, then
continue incl. sub-agent); start_loop used by recovery; LiveInput
- delegate: AsyncExecutor + StoreSink for mode:async (durable cron row,
result delivered back into the parent conversation)
- kernel/context/store: support the above (TurnScope via Extensions,
frame lookups, aligned result-text semantics)
skald-core:
- loop_adapters: UserLoopRuntime (D12 - one LoopManager per user),
TurnScope (per-turn state in the Extensions type-map; no scope is
denied), projection_cfg/media_source/tool_digest (Skald's projection
knobs without owning projection code), async_task (CronExecutor +
DurableSink)
- session/handler: stripped to mod.rs + kernel_turn.rs + config.rs +
interface_tools.rs + media.rs; deleted agent_dispatch, approval,
dispatch, emitter, gate, llm_call, llm_loop, message_builder,
messages, outcome, resume
- compactor.rs: policy only (threshold, model pick, CompactionEvent);
mechanics are the crate's
CLAUDE.md updated (recovery, compaction, sub-agents, approval gate,
projection sections now describe the crate-owned flow).
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.
Extract shared upload seam in skald-core, move Telegram and web
handlers to use it. Simplify media attachment routing. Clean up
unused deps and dead code.
Show file gains image and video display for capable agents. Docs add
projects.md and update index. Wire ws file-watch in project-board.
Minor fs tool and CLAUDE.md updates.
- Strip ~55 stale upstream docs (dev docs never meant for the agents)
- Write new slim index.md as an agent-facing guide to the app's features
- Add new plugin docs: comfyui, elevenlabs, kokoro_tts, orpheus_tts_3b,
remote_connectivity, whisper_local (replacing old names)
- Add docs_host to UserFs: docs/… and ~/docs/… resolve to {WD}/docs,
mounted read-only at /root/docs in every user's container
- Instruct assistant/kid/project-coordinator agents to read docs/index.md
when users ask how the software works
Adds media.rs for per-turn attachment routing, message_builder
partitioning by resolved model capabilities, controller endpoints
for uploads, and server routing for /data/* behind session auth.
See CLAUDE.md §Multimodal attachments for full design.
Replace the five copy-paste OpenAI-compatible provider structs (moonshot,
moonshot_code, deepseek, zai, lm_studio) with one DeclaredProvider engine
driven by a providers.yaml catalog loaded at boot from the cwd — edit and
restart, no rebuild. The YAML carries identity, endpoints, per-model JSON
field mapping, id-glob enrichment rules and the reasoning knob (effort /
thinking request kinds); capability_flags keep vision and future input
modalities declarative. Anthropic, Ollama, OpenAI and OpenRouter stay
native (different wire protocols or bespoke parsing) and register
alongside; colliding declared ids are skipped. The shipped catalog is
validated by a unit test.
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.