Files
state-hub/api/routers/capability_requests.py
tegwick 262682cdf0 refactor(hub-core): mount capability write router and compose MCP tools
Use create_capability_request_write_router with dev-hub callbacks and attach
generic HubCoreMCPServer tools while keeping enriched local overrides.
2026-06-22 19:52:22 +02:00

417 lines
14 KiB
Python

import re
import uuid
from datetime import datetime, timezone
from fastapi import HTTPException
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from api.database import get_session
from api.flow_defs import assertion_result_to_dict, evaluate_transition, flow_result_to_dict
from api.models.agent_message import AgentMessage
from api.models.capability_catalog import CapabilityCatalog
from api.models.capability_request import CapabilityRequest
from api.models.domain import Domain
from api.models.managed_repo import ManagedRepo
from api.models.task import Task
from api.schemas.capability_request import (
CapabilityRequestAccept,
CapabilityRequestCreate,
CapabilityRequestDispute,
CapabilityRequestPatch,
CapabilityRequestRead,
CapabilityRequestReroute,
CapabilityRequestStatusPatch,
)
from hub_core.routers.capabilities import (
create_capability_catalog_router,
create_capability_request_read_router,
create_capability_request_write_router,
)
# ---------------------------------------------------------------------------
# Write-router callbacks
# ---------------------------------------------------------------------------
async def _route_capability(
session: AsyncSession,
body: CapabilityRequestCreate,
) -> tuple[uuid.UUID | None, uuid.UUID | None, str | None]:
fulfilling_domain_id, catalog_entry_id, routing_note = await _route_capability_match(
session,
body.capability_type,
body.title,
body.description or "",
)
return fulfilling_domain_id, catalog_entry_id, routing_note
def _build_capability_request(
body: CapabilityRequestCreate,
requesting_domain: Domain,
fulfilling_domain_id: uuid.UUID | None,
catalog_entry_id: uuid.UUID | None,
routing_note: str | None,
) -> CapabilityRequest:
return CapabilityRequest(
title=body.title,
description=body.description,
capability_type=body.capability_type,
priority=body.priority,
requesting_domain_id=requesting_domain.id,
requesting_agent=body.requesting_agent,
requesting_workplan_id=body.requesting_workplan_id,
blocking_task_id=body.blocking_task_id,
fulfilling_domain_id=fulfilling_domain_id,
catalog_entry_id=catalog_entry_id,
routing_note=routing_note,
)
async def _notify_on_create(
session: AsyncSession,
req: CapabilityRequest,
body: CapabilityRequestCreate,
) -> None:
await session.flush()
if req.fulfilling_domain_id:
ful_domain = await session.get(Domain, req.fulfilling_domain_id)
to_agent = ful_domain.slug if ful_domain else "broadcast"
else:
to_agent = "broadcast"
_add_notification(
session,
from_agent="system",
to_agent=to_agent,
subject=f"[capability-request] {body.title}",
body=(
f"New capability request from **{body.requesting_agent}** "
f"({body.requesting_domain}):\n\n"
f"**Type:** {body.capability_type}\n"
f"**Priority:** {body.priority}\n\n"
f"{body.description or '(no description)'}"
),
)
def _apply_accept_fields(req: CapabilityRequest, body: CapabilityRequestAccept) -> None:
req.fulfilling_workplan_id = body.fulfilling_workplan_id
async def _notify_on_accept(
session: AsyncSession,
req: CapabilityRequest,
body: CapabilityRequestAccept,
) -> None:
_add_notification(
session,
from_agent=body.fulfilling_agent,
to_agent=req.requesting_agent,
subject=f"[capability-accepted] {req.title}",
body=f"Your capability request **{req.title}** has been accepted by **{body.fulfilling_agent}**.",
)
async def _on_status_change(
session: AsyncSession,
req: CapabilityRequest,
body: CapabilityRequestStatusPatch,
now: datetime,
) -> None:
if body.status == "completed":
if req.blocking_task_id:
task = await session.get(Task, req.blocking_task_id)
if task and task.status == "wait":
task.status = "todo"
task.blocking_reason = None
_add_notification(
session,
from_agent="system",
to_agent=req.requesting_agent,
subject=f"[capability-completed] {req.title}",
body=(
f"Capability request **{req.title}** has been completed.\n\n"
f"{body.note or ''}"
),
)
elif body.status == "ready_for_review":
_add_notification(
session,
from_agent=req.fulfilling_agent or "system",
to_agent=req.requesting_agent,
subject=f"[capability-ready] {req.title} -- please review",
body=(
f"Capability **{req.title}** is ready for your review and optimization.\n\n"
f"{body.note or ''}"
),
)
elif body.status == "rejected":
_add_notification(
session,
from_agent=req.fulfilling_agent or "system",
to_agent=req.requesting_agent,
subject=f"[capability-rejected] {req.title}",
body=(
f"Capability request **{req.title}** has been rejected.\n\n"
f"**Reason:** {body.note or '(no reason given)'}"
),
)
elif body.status == "in_progress":
_add_notification(
session,
from_agent=req.fulfilling_agent or "system",
to_agent=req.requesting_agent,
subject=f"[capability-in-progress] {req.title}",
body=f"Work on capability **{req.title}** is now in progress.",
)
async def _apply_capability_patch(
session: AsyncSession,
req: CapabilityRequest,
body: CapabilityRequestPatch,
) -> bool:
corrections: list[str] = []
if body.catalog_entry_id is not None:
old_entry_id = req.catalog_entry_id
entry = await session.get(CapabilityCatalog, body.catalog_entry_id)
if entry is None:
raise HTTPException(status_code=404, detail=f"Catalog entry '{body.catalog_entry_id}' not found")
req.catalog_entry_id = entry.id
req.fulfilling_domain_id = entry.domain_id
corrections.append(
f"catalog_entry: {old_entry_id}{entry.id} ({entry.title}); "
f"fulfilling_domain re-derived → {entry.domain_id}"
)
if body.priority is not None:
req.priority = body.priority
corrections.append(f"priority → {body.priority}")
if body.blocking_task_id is not None:
req.blocking_task_id = body.blocking_task_id
corrections.append(f"blocking_task_id → {body.blocking_task_id}")
if body.fulfilling_workplan_id is not None:
req.fulfilling_workplan_id = body.fulfilling_workplan_id
corrections.append(f"fulfilling_workplan_id → {body.fulfilling_workplan_id}")
if not corrections:
return False
correction_note = "hub correction: " + "; ".join(corrections)
req.routing_note = (req.routing_note + "\n" + correction_note) if req.routing_note else correction_note
return True
async def _notify_on_dispute(
session: AsyncSession,
req: CapabilityRequest,
body: CapabilityRequestDispute,
now: datetime,
) -> None:
dispute_entry = (
f"disputed by {body.disputed_by}: {body.reason}"
+ (f" (suggested: {body.suggested_domain})" if body.suggested_domain else "")
)
req.routing_note = (req.routing_note + "\n" + dispute_entry) if req.routing_note else dispute_entry
_add_notification(
session,
from_agent=body.disputed_by,
to_agent="custodian",
subject=f"[routing-disputed] {req.title}",
body=(
f"**{body.disputed_by}** has disputed the routing of capability request "
f"**{req.title}**.\n\n"
f"**Reason:** {body.reason}\n"
+ (f"**Suggested domain:** {body.suggested_domain}\n" if body.suggested_domain else "")
+ f"\nCurrently routed to: {req.fulfilling_domain_slug or 'unrouted'}"
),
)
if req.fulfilling_domain_slug:
_add_notification(
session,
from_agent=body.disputed_by,
to_agent=req.fulfilling_domain_slug,
subject=f"[routing-disputed] {req.title}",
body=(
f"The capability request **{req.title}** routed to your domain has been disputed "
f"by **{body.disputed_by}**.\n\n"
f"**Reason:** {body.reason}\n"
+ (f"**Suggested domain:** {body.suggested_domain}" if body.suggested_domain else "")
),
)
async def _notify_on_reroute(
session: AsyncSession,
req: CapabilityRequest,
body: CapabilityRequestReroute,
new_domain_slug: str,
) -> None:
_add_notification(
session,
from_agent=body.rerouted_by,
to_agent=req.requesting_agent,
subject=f"[re-routed] {req.title}",
body=(
f"Capability request **{req.title}** has been re-routed to **{new_domain_slug}**.\n\n"
f"**Note:** {body.note}"
),
)
_add_notification(
session,
from_agent=body.rerouted_by,
to_agent=new_domain_slug,
subject=f"[capability-request] {req.title}",
body=(
f"Capability request **{req.title}** has been re-routed to your domain.\n\n"
f"**From:** {req.requesting_agent} ({req.requesting_domain_slug})\n"
f"**Type:** {req.capability_type}\n"
f"**Priority:** {req.priority}\n\n"
f"{req.description or '(no description)'}"
),
)
# ---------------------------------------------------------------------------
# Routing algorithm
# ---------------------------------------------------------------------------
async def _route_capability_match(
session: AsyncSession,
capability_type: str,
title: str,
description: str,
) -> tuple[uuid.UUID | None, uuid.UUID | None, str]:
"""Find the best-matching catalog entry for a capability request.
Returns (domain_id, catalog_entry_id, routing_note).
"""
q = select(CapabilityCatalog).where(
CapabilityCatalog.capability_type == capability_type,
CapabilityCatalog.status == "active",
)
entries = list((await session.execute(q)).scalars().all())
if not entries:
return None, None, f"no active catalog entries for type '{capability_type}' — broadcast"
if len(entries) == 1:
entry = entries[0]
return entry.domain_id, entry.id, f"single match: '{entry.title}' (domain={entry.domain_id})"
combined = f"{title} {description or ''}".lower()
scored: list[tuple[int, CapabilityCatalog]] = []
for entry in entries:
keywords = [kw for kw in (entry.keywords or []) if len(kw) >= 3]
score = sum(
1 for kw in keywords
if re.search(r"\b" + re.escape(kw.lower()) + r"\b", combined)
)
scored.append((score, entry))
scored.sort(key=lambda item: -item[0])
best_score, best = scored[0]
if best_score == 0:
return None, None, (
f"no keyword overlap for type '{capability_type}' among "
f"{len(entries)} entries — broadcast"
)
if len(scored) >= 2 and scored[1][0] == best_score:
return None, None, (
f"ambiguous routing: '{scored[0][1].title}' and '{scored[1][1].title}' "
f"both scored {best_score} — broadcast"
)
return best.domain_id, best.id, (
f"matched '{best.title}' (score={best_score}, "
f"keywords matched from: {title!r})"
)
# ---------------------------------------------------------------------------
# Helpers
# ---------------------------------------------------------------------------
def _add_notification(
session: AsyncSession,
from_agent: str,
to_agent: str,
subject: str,
body: str,
) -> None:
msg = AgentMessage(
from_agent=from_agent,
to_agent=to_agent,
subject=subject,
body=body,
)
session.add(msg)
def _check_transition(current: str, target: str) -> None:
can_reach, failures, flow_result = evaluate_transition(
"capability_request",
current,
target,
)
if not can_reach:
raise HTTPException(
status_code=422,
detail={
"message": f"Cannot transition from '{current}' to '{target}'.",
"current_workstation": current,
"target_workstation": target,
"blocking_assertions": [
assertion_result_to_dict(item) for item in failures
],
"flow_result": flow_result_to_dict(flow_result),
},
)
router = create_capability_catalog_router(
get_session,
domain_model=Domain,
repo_model=ManagedRepo,
catalog_model=CapabilityCatalog,
)
router.include_router(
create_capability_request_read_router(
get_session,
domain_model=Domain,
request_model=CapabilityRequest,
request_read_schema=CapabilityRequestRead,
)
)
router.include_router(
create_capability_request_write_router(
get_session,
domain_model=Domain,
catalog_model=CapabilityCatalog,
request_model=CapabilityRequest,
request_create_schema=CapabilityRequestCreate,
request_accept_schema=CapabilityRequestAccept,
request_patch_schema=CapabilityRequestPatch,
request_status_patch_schema=CapabilityRequestStatusPatch,
request_dispute_schema=CapabilityRequestDispute,
request_reroute_schema=CapabilityRequestReroute,
request_read_schema=CapabilityRequestRead,
route_request=_route_capability,
build_request=_build_capability_request,
on_request_persisted=_notify_on_create,
check_transition=_check_transition,
apply_accept_fields=_apply_accept_fields,
after_accept=_notify_on_accept,
after_status_change=_on_status_change,
apply_patch=_apply_capability_patch,
after_dispute=_notify_on_dispute,
after_reroute=_notify_on_reroute,
)
)