hub-core/AGENTS.md

# hub-core — Agent Instructions

## Repo Identity

**Purpose:** Reusable Python package of FastAPI router factories, SQLAlchemy
models, Pydantic schemas, MCP tooling, and migration scaffolds for FOS hub
services.

**Domain:** inter_hub
**Repo slug:** hub-core
**Topic ID:** `1f2e4d10-c967-4803-ae6c-7f4b4e806409`
**Workplan prefix:** `HUB-WP-`

---

## State Hub Integration

The Custodian State Hub tracks work across all domains. Interact via HTTP REST —
there is no MCP server for Codex agents.

| Context | URL |
|---------|-----|
| Local workstation | `http://127.0.0.1:8000` |
| Remote via tunnel | `http://127.0.0.1:18000` |

### Orient at session start

```bash
# Offline brief — works without hub connection
cat .custodian-brief.md

# Active workstreams for this domain
curl -s "http://127.0.0.1:8000/workstreams/?topic_id=1f2e4d10-c967-4803-ae6c-7f4b4e806409&status=active" \
  | python3 -m json.tool

# Check inbox
curl -s "http://127.0.0.1:8000/messages/?to_agent=hub-core&unread_only=true" \
  | python3 -m json.tool
```

Mark a message read:
```bash
curl -s -X PATCH "http://127.0.0.1:8000/messages/<id>/read" \
  -H "Content-Type: application/json" -d '{}'
```

### Log progress (required at session close)

```bash
curl -s -X POST http://127.0.0.1:8000/progress/ \
  -H "Content-Type: application/json" \
  -d '{
    "summary": "what was done",
    "event_type": "note",
    "author": "codex",
    "workstream_id": "<uuid>",
    "task_id": "<uuid>"
  }'
```

Omit `workstream_id` / `task_id` when not applicable.

### Update task status

```bash
curl -s -X PATCH "http://127.0.0.1:8000/tasks/<task_id>" \
  -H "Content-Type: application/json" \
  -d '{"status": "progress"}'
# values: wait | todo | progress | done | cancel
```

### Flag a task for human review

```bash
curl -s -X PATCH "http://127.0.0.1:8000/tasks/<task_id>" \
  -H "Content-Type: application/json" \
  -d '{"needs_human": true, "intervention_note": "reason"}'
```

---

## Session Protocol

**Start:**
1. `cat .custodian-brief.md` — domain goal and open workstreams (offline-safe)
2. Check inbox: `GET /messages/?to_agent=hub-core&unread_only=true`; mark read
3. Scan workplans: `ls workplans/` — note `status: ready`, `active`, or `blocked` files and open tasks
4. Check human-needed tasks: `GET /tasks/?needs_human=true`

**During work:**
- Update task statuses in workplan files as tasks progress
- Record significant decisions via `POST /decisions/`

**Close:**
1. Update workplan file task statuses to reflect progress
2. Log: `POST /progress/` with a summary of what changed
3. Note for the custodian operator: after workplan file changes, run from
   `~/state-hub`:
   ```bash
   make fix-consistency REPO=hub-core
   ```
   This syncs task status from files into the hub DB.

---

## Commands

`hub-core` is a library — there is no `serve` entrypoint. Host repos mount
routers and run their own `uvicorn` process.

```bash
cd ~/hub-core

# Install (editable)
python3 -m venv .venv && .venv/bin/pip install -e .

# Test
.venv/bin/pytest -q

# Compile check (fast sanity)
python3 -m compileall hub_core

# Build wheel
.venv/bin/pip install build && python3 -m build

# Consumer regression (after router/schema changes)
cd ~/state-hub && make test
```

No repo-native lint or format targets yet. Add `ruff` / `mypy` when the
package surface stabilizes.

Primary references: `INTENT.md`, `SCOPE.md`, `README.md`,
`~/the-custodian/docs/hub-core-extraction-boundary.md`.

---

## Credential and access routing

> Fleet template mirrored in `.claude/rules/credential-routing.md` for Claude Code.
> Re-sync both from `~/ops-warden/wiki/CredentialRouting.md` when the catalog changes.

**Audience:** Codex, Claude Code, Grok, and custodian agents that call **llm-connect**
for inference. Run this check **before** requesting secrets, API keys, SSH access,
login tokens, or database passwords — in any repo, not only `ops-warden`.

ops-warden **issues SSH certificates only** (`warden sign`, `cert_command`). Every
other credential need belongs to another subsystem. **Do not** message
`ops-warden` on State Hub expecting a secret value; the reply is a pointer, not a key.

### Lookup (do this first)

```bash
warden route find "<describe your need>" --json
warden route show <catalog-id> --json
```

Requires the `warden` CLI from `~/ops-warden` (`uv tool install .` or `uv run warden`).

| Agent runtime | How to orient |
| --- | --- |
| **Codex / Grok** (shell, HTTP State Hub) | `warden route` commands above; inbox `to_agent=hub-core` is for coordination, not secret vending |
| **Claude Code** (MCP when available) | `get_domain_summary("custodian")` for workstreams; **still** use `warden route` for credential ownership |
| **llm-connect** (inference service) | Never put secret retrieval in prompts; route custody to OpenBao/operator paths surfaced by `warden route` |

### Quick routing table

| I need… | Owner | ops-warden executes? |
| --- | --- | --- |
| SSH cert (`adm`/`agt`/`atm`) | ops-warden | **Yes** — `warden sign` |
| API key, DB password, provider token | OpenBao (`railiance-platform`) | No — route only |
| Login / OIDC / MFA | key-cape / Keycloak | No — route only |
| Authorization decision | flex-auth | No — route only |
| activity-core → issue-core emission | activity-core + issue-core | No — `warden route show activity-core-issue-sink` |
| SSH tunnel | ops-bridge (+ `cert_command` from warden) | No — route only |

### Anti-patterns (do not do these)

- `POST /messages/` to `ops-warden` asking for `ISSUE_CORE_API_KEY`, `OPENROUTER_API_KEY`, etc.
- Inventing `warden secret`, `warden login`, `warden bao`, `warden tunnel` — they do not exist
- Pasting secrets into Git, State Hub, workplans, logs, or chat

### Other capabilities (reuse-surface)

Non-credential capabilities are usually discovered through **reuse-surface** federation
(`reuse-surface` registry / `capability.*` indexes). Credential routing is inlined in
every repo's agent instructions because it is high-frequency, high-risk, and easy to
get wrong.

**Canon:** `~/ops-warden/wiki/CredentialRouting.md` · catalog `~/ops-warden/registry/routing/catalog.yaml`
---

## Workplan Convention (ADR-001)

Work items originate as files in this repo — not in the hub. The hub is a
read/cache/index layer that rebuilds from files.

**File location:** `workplans/HUB-WP-NNNN-<slug>.md`

**Archived location:** finished workplans may move to
`workplans/archived/YYMMDD-HUB-WP-NNNN-<slug>.md`. The `YYMMDD` prefix is
the completion/archive date; the frontmatter `id` does not change.

**Ad Hoc Tasks:** small opportunistic fixes discovered during a session use
`workplans/ADHOC-YYYY-MM-DD.md` with task ids `ADHOC-YYYY-MM-DD-T01`, etc. Use
this only for low-risk work completed directly; create a normal workplan for
anything needing analysis, design, approval, dependencies, or multiple phases.

**Frontmatter:**

```yaml
---
id: HUB-WP-NNNN
type: workplan
title: "..."
domain: inter_hub
repo: hub-core
status: proposed | ready | active | blocked | backlog | finished | archived
owner: codex
topic_slug: ...
created: "YYYY-MM-DD"
updated: "YYYY-MM-DD"
state_hub_workstream_id: "<uuid>"   # written by fix-consistency — do not edit
---
```

Use `proposed` for a new draft, `ready` after review against current repo
state, and `finished` after implementation. `stalled` and `needs_review` are
derived health labels, not frontmatter statuses.

**Task block format** (one per `##` section):

```
## Task Title

` ` `task
id: HUB-WP-NNNN-T01
status: wait | todo | progress | done | cancel
priority: high | medium | low
state_hub_task_id: "<uuid>"         # written by fix-consistency — do not edit
` ` `

Task description text.
```

Status progression: `todo` → `progress` → `done`; use `wait` for waiting/blocked work and `cancel` for stopped work.

To create a new workplan:
1. Write the file following the format above
2. Notify the custodian operator to run `make fix-consistency REPO=hub-core`
   (or send a message to the hub agent via `POST /messages/`)