research agents now have a 2-minute timeout via tokio::time::timeout.
a hung Mistral API call can no longer block Sol's entire sync loop.
timed-out agents return partial results instead of hanging forever.
on startup, Sol detects research sessions with status='running' from
previous crashes and marks them as failed. 6 new tests covering the
full research session lifecycle: create, append findings, complete,
fail, hung cleanup, and partial findings survival.
new research tool spawns 3-25 micro-agents (ministral-3b) in
parallel via futures::join_all. each agent gets its own Mistral
conversation with full tool access.
recursive spawning up to depth 4 — agents can spawn sub-agents.
research sessions persisted in SQLite (survive reboots).
thread UX: 🔍 reaction, per-agent progress posts, ✅ when done.
cost: ~$0.03 per research task (20 micro-agents on ministral-3b).
new SQLite table service_users maps OIDC identities (matrix localpart)
to service-specific usernames, handling auth boundary mismatches.
localpart() extracts the username from a matrix user ID.
delete_all_conversations() added for bulk reset after agent recreation.
all delete_* methods now log failures instead of silently discarding.
removed dead user_tokens table (tokens now live in vault).
Mistral Agents + Conversations API integration:
- Orchestrator agent created on startup with Sol's personality + tools
- ConversationRegistry routes messages through persistent conversations
- Per-room conversation state (room_id → conversation_id + token counts)
- Function call handling within conversation responses
- Configurable via [agents] section in sol.toml (use_conversations_api flag)
Multimodal support:
- m.image detection and Matrix media download (mxc:// → base64 data URI)
- ContentPart-based messages sent to Mistral vision models
- Archive stores media_urls for image messages
System prompt rewrite:
- 687 → 150 lines — dense, few-shot examples, hard rules
- {room_context_rules} placeholder for group vs DM behavior
- Sender prefixing (<@user:server>) for multi-user turns in group rooms
SQLite persistence (/data/sol.db):
- Conversation mappings and agent IDs survive reboots
- WAL mode for concurrent reads
- Falls back to in-memory on failure (sneezes into all rooms to signal)
- PVC already mounted at /data alongside Matrix SDK state store
New modules:
- src/persistence.rs — SQLite state store
- src/conversations.rs — ConversationRegistry + message merging
- src/agents/{mod,definitions,registry}.rs — agent lifecycle
- src/agent_ux.rs — reaction + thread progress UX
- src/tools/bridge.rs — tool dispatch for domain agents
102 tests passing.
