State Hub v0.1

The operational brain of the Custodian: a local PostgreSQL database, FastAPI REST service, FastMCP SSE server for Claude Code, Observable Framework dashboard, and a custodian CLI.

---

Stack

Layer	Technology	Port
Database	PostgreSQL 16-alpine (Docker)	127.0.0.1:5432
API	FastAPI + SQLAlchemy 2.0 async + asyncpg	127.0.0.1:8000
MCP server	FastMCP SSE	127.0.0.1:8001
Dashboard	Observable Framework	127.0.0.1:3000
CLI	custodian (Python, uv entry point)	—

All services bind to 127.0.0.1 only — nothing exposed to the network.

---

Setup

Prerequisites

• Docker Engine (WSL2: see CLAUDE.md in repo root → Docker Setup)
• Python 3.12+ with uv (pip install uv)
• Node.js 18+ (dashboard only)

First-time

cd state-hub

cp .env.example .env          # edit POSTGRES_PASSWORD
make install                  # uv sync
make db                       # docker compose up postgres
make migrate                  # alembic upgrade head (creates 5 tables)
make seed                     # insert 6 canonical topics
make api                      # db + migrate + uvicorn :8000 (restarts if running)

Dashboard

make dashboard    # Observable dev server on :3000

CLI

make install-cli              # symlink .venv/bin/custodian → ~/.local/bin
custodian status              # API health + summary totals
custodian register-project    # register cwd as a Custodian project

---

Makefile Targets

Target	What it does
make install	uv sync — install Python deps + entry points
make install-cli	Symlink custodian to ~/.local/bin
make db	Start postgres container
make db-tools	Start postgres + pgadmin (http://127.0.0.1:5050)
make migrate	alembic upgrade head
make seed	Insert 6 canonical topics
make api	db + wait + migrate + uvicorn (restarts if running)
make dashboard	Observable dev server (restarts if running)
make check	curl /state/health
make register-project DOMAIN=x PROJECT_PATH=y	Register a project
make clean	docker compose down -v (destroys DB volume)

---

Database Schema

Five tables in dependency order:

topics
└── workstreams
    └── tasks (self-FK: parent_task_id)
        └── progress_events
decisions (FK: topic_id, workstream_id — at least one required)
    └── progress_events

Enums

Enum	Values
topic_status	active · paused · archived
workstream_status	active · blocked · completed · archived
task_status	todo · in_progress · blocked · done · cancelled
task_priority	low · medium · high · critical
decision_type	made · pending
decision_status	open · resolved · escalated · superseded
domain	custodian · railiance · markitect · coulomb_social · personhood · foerster_capabilities

Governance constraints encoded in schema

• No hard DELETE endpoints — only soft: archived, cancelled, superseded
• progress_events has no updated_at and no DELETE endpoint (append-only per constitution §5)
• decisions with financial/legal keywords + pending type → auto-set escalation_note (§4)

---

API

Interactive docs at http://127.0.0.1:8000/docs once the API is running.

Key endpoint: /state/summary

Returns a full snapshot in one call — used by both the MCP server and dashboard:

{
  "generated_at": "...",
  "totals": {
    "topics":      { "active": 6, "paused": 0, "archived": 0, "total": 6 },
    "workstreams": { "active": 1, "blocked": 0, "completed": 1, "total": 2 },
    "tasks":       { "todo": 9, "in_progress": 0, "blocked": 0, "done": 11, "total": 20 },
    "decisions":   { "open": 1, "resolved": 0, "escalated": 0, "total": 1 }
  },
  "topics": [...],             // topics with nested workstream stubs
  "blocking_decisions": [...], // pending decisions only
  "blocked_tasks": [...],
  "recent_progress": [...],    // last 20 events
  "open_workstreams": [...]
}

Router summary

Prefix	Operations
/topics	CRUD (soft-delete: archived)
/workstreams	CRUD (soft-delete: archived)
/tasks	CRUD (soft-delete: cancelled); PATCH updates status
/decisions	CRUD (soft-delete: superseded); auto-escalation
/progress	GET list + POST append — no DELETE
/state/summary	Full snapshot
/state/health	DB connectivity check

---

MCP Server

Runs as a persistent SSE service on :8001, independent of the Claude Code session. Restart it anytime without restarting Claude Code.

make mcp-http   # start (or restart) the MCP SSE server on :8001

Registered at user scope in ~/.claude.json:

{ "type": "sse", "url": "http://127.0.0.1:8001/sse" }

To re-register from scratch:

claude mcp remove state-hub -s user 2>/dev/null || true
claude mcp add-json -s user state-hub '{"type":"sse","url":"http://127.0.0.1:8001/sse"}'

See mcp_server/TOOLS.md for the full tool reference card (30 lines, faster than reading server.py).

Tools at a glance

Query (read-only): get_state_summary · get_topic · list_blocked_tasks · list_pending_decisions · get_recent_progress

Mutate (each auto-emits a progress event): create_task · update_task_status · record_decision · resolve_decision · add_progress_event · update_workstream_status

Resources: state://summary · state://topics · state://workstreams/{topic_slug} · state://decisions/blocking · state://tasks/blocked

---

custodian CLI

Installed into .venv/bin/custodian by uv sync; symlinked to ~/.local/bin by make install-cli.

custodian register-project [--domain DOMAIN] [--path PATH]

• --path defaults to current working directory
• --domain is auto-detected from project_charter_v*.md frontmatter if omitted

custodian status

Prints API health, totals, and any blocking decisions.

What register-project does

1. Verifies the API is reachable (fails fast with make api hint)
2. Looks up the topic ID for the domain via /topics/?status=active
3. Checks that state-hub is in ~/.claude.json
4. Writes $PROJECT_PATH/CLAUDE.md from scripts/project_claude_md.template
5. Posts a milestone progress event recording the registration

---

Project Registration Scripts

Script	Purpose
scripts/register_project.sh	Shell version of custodian register-project
scripts/patch_mcp_cwd.py	Legacy: patched cwd for the old stdio registration (no longer needed)
scripts/project_claude_md.template	CLAUDE.md template with {PROJECT_NAME}, {DOMAIN}, {TOPIC_ID}
scripts/seed.py	Insert the 6 canonical topics into a fresh database
scripts/pull_image.py	WSL2 workaround: pull Docker images via Python urllib with Range-request chunking

---

Dashboard

Four pages at http://127.0.0.1:3000 (dev) or built with npm run build:

Page	Content
Overview	Status cards, task-by-status chart, recent activity feed, decisions due within 7 days
Workstreams	Filterable table by domain/status/owner; selected workstream task list; progress timeline
Decisions	Pending tab (with escalation highlights) and Made tab; resolution velocity chart
Progress	Append-only event feed with author badges; 30-day event volume chart

Data loaders (src/data/*.json.py) are Python scripts that call the local API. They run at dev-server start and on npm run build. Clear the cache if data appears stale:

rm -rf dashboard/src/.observablehq/cache/

---

Known Issues / WSL2 Notes

• TLS bad record MAC on large downloads: WSL2 corrupts packets on big TCP transfers. Use scripts/pull_image.py instead of docker pull for future image pulls.
• MCP server is now SSE, not stdio: Re-registration is claude mcp add-json -s user state-hub '{"type":"sse","url":"http://127.0.0.1:8001/sse"}'. The patch_mcp_cwd.py script and .mcp.json config are legacy artifacts from the old stdio setup.
• AsyncSession concurrency: SQLAlchemy 2.0 async sessions don't support concurrent operations. All queries in /state/summary run sequentially on a single session.