926969a03f8cb518e1d2f5b55abaaa41c974446a
Fix A3 of plans/2026-07-11-nomos-agent-code-review.md. handleChat only ever saved the assistant message ONCE, after a.chat(...) returned, using ctx := r.Context() for that write — the same context that cancels the instant the client disconnects (Stop button, tab close, network blip). A disconnect mid-turn meant the final save ran with an already-cancelled context and its error was never checked: the entire turn's tool-call history was silently lost from the persisted transcript, even though real work (executions launched, knowledge written) had already happened server-side. Brought handleChat in line with resumeSession's existing pattern (continue.go): insert a placeholder assistant row immediately, update the SAME row after every tool call. The key fix is WHICH context the writes use — a new pctx := context.Background() for every DB write in this handler (session creation/touch, the user message, question auto-close, the placeholder + incremental updates, the title update), while ctx/r.Context() still gates the agent's own work (a.chat) and the SSE writes exactly as before — a disconnect still correctly stops the agent from doing further work, it just no longer also erases what it already did. Verified live: sent a message requiring 6 tool calls (get_entity/ get_relations/get_blast_radius on two targets) and force-killed the client connection mid-stream with curl -m 12 (confirmed via exit code 28). Before this fix the persisted transcript would show 0 tool-call entries; after, all 12 raw tool_use/tool_result entries (6 calls × 2) were present and correctly attributed by tool name — proving both that progress survives an abort and that the incremental writes aren't corrupting the data. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
adr: convert all diagrams to Mermaid (sequenceDiagram, stateDiagram-v2, flowchart, erDiagram, graph)
Oikos
Agentic homelab operating system written in Go. Single binary (cmd/oikos),
Docker-deployed on mac-mini, with a standalone Nomos MCP agent gateway
(cmd/nomos). Manages the hubris Proxmox homelab autonomously — observes
state, classifies actions against policy, executes approved procedures over SSH,
learns from outcomes, and escalates when uncertain.
For agents running on enrolled clients: start with AGENTS.md. For client machines: see CLIENTS.md. For developers: see CONTRIBUTING.md.
Quick start
# Dev stack (postgres + api + scheduler + notifier)
docker compose --profile dev up -d
# Full stack (adds Nomos agent gateway)
docker compose --profile full up -d
# Build standalone binary
go build -o bin/oikos -tags timetzdata ./cmd/oikos
# Run all roles in one process (dev mode)
OIKOS_DATABASE_URL="postgres://oikos:oikos_dev@localhost:5432/oikos?sslmode=disable" \
go run ./cmd/oikos all
Architecture
┌──────────────────────────────────┐
│ mac-mini (Docker) │
│ │
Workstation ─── │ nomos (8092) ──MCP── api (8090) │
(mesh) │ MCP gateway REST + MCP │
│ │
│ scheduler ── notifier ── postgres │
│ (observe) (Matrix) (Timescale)│
└──────────────────────────────────┘
| Component | Port | Role |
|---|---|---|
oikos api |
8090 | REST API + MCP server (15 tools) |
oikos scheduler |
— | Probe runner, signal lifecycle, metrics |
oikos notifier |
— | Approval tokens, Matrix alerts |
nomos serve |
8092 | MCP client gateway, query routing |
Phases
| Phase | Status | Description |
|---|---|---|
| 1 — Ontology + DB | ✅ | TimescaleDB, migrations, seeds, blast_radius |
| 2 — API | ✅ | OpenAPI-first REST + MCP, auth, SSE, audit |
| 3 — Control loop | ✅ | Scheduler, actuator, learning, classifier, notifier |
| 4 — Nomos agent | ✅ | Standalone MCP client gateway, agent activity |
| 5 — Secrets | ✅ | Infisical backend + SOPS fallback, rotation runbooks |
| 6 — Deploy | ✅ | CI pipeline, cutover checklist, watchdog, rollback |
Full plan: plans/2026-07-06-consolidate-oikos-control-plane-onto-mac-mini.md.
Operations
API endpoints
curl http://localhost:8090/api/v1/entities?type=service # fleet
curl http://localhost:8090/api/v1/health # fleet health
curl http://localhost:8090/api/v1/agent-activity # agent log
Nomos queries
# Structured tool call
curl -X POST localhost:8092/query -H "Content-Type: application/json" \
-d '{"tool":"get_blast_radius","args":{"entity_id":"service:authentik"}}'
# Natural language
curl -X POST localhost:8092/query -H "Content-Type: application/json" \
-d '{"query":"what depends on authentik?"}'
CLI
oikos migrate # apply DB migrations
oikos seed # ingest ontology/inventory/policy seeds
oikos export # export DB state to YAML
oikos api # serve REST + MCP
oikos scheduler # run observe loop
oikos notifier # run notification loop
oikos all # all roles in one process
oikos secret list # enumerate SOPS secrets
oikos secret migrate # SOPS → Infisical
Repo layout
cmd/oikos/ Go entry point — single binary
cmd/nomos/ Nomos MCP client gateway
internal/ Go packages (httpapi, mcp, scheduler, actuator, learning,
notifier, policy, secrets, db, config, ontology, domain,
knowledge)
api/openapi.yaml API contract (OpenAPI 3.1)
migrations/ Forward-only SQL migrations (TimescaleDB)
seeds/ Bootstrap YAML (ontology, inventory, policy, knowledge)
compose/ Dockerfiles + Caddy config
scripts/ Deploy, watchdog, verification, rollback
nomos/ Nomos config, persona, skills
.agents/ Agent instruction files, shared conventions, skills
archive/ Historical reference (legacy wiki, plans, SOPS backups)
plans/ Design documents (active + done)
docs/adr/ Architecture decision records
For agents
See AGENTS.md for the full orientation. Quick reference:
- Source of truth: DB (runtime) then seeds (bootstrap). Old wiki is
archived at
archive/knowledge/— use MCPsearch_knowledgeinstead. - Mutations: classify against policy, request approval for
destructive/config_mutation - Secrets: Infisical (primary) or SOPS (fallback) — never hardcode
Related
- OIKOS.md — operating model, OODA loop, ontology
- CLIENTS.md — client onboarding guide
- CONTRIBUTING.md — developer guide
- plans/ — design documents and cutover checklist
- docs/adr/ — architecture decision records
Description
Languages
Go
53.1%
Svelte
25.7%
TypeScript
14%
Shell
3.8%
Python
1.7%
Other
1.5%