Files
smart-org/apps/api/app/infrastructure/db/models_engine.py
T
mjalmoudy94 df7da8c75c feat(engine): workforce engine core — tag protocol, pipelines, optimistic state
Phase 1 of TODO-agent-2: pure logic plus the tables it writes to.

- domain/workforce/pipeline.py: Stage/PipelineKey/Outcome, the four pipelines,
  TRANSITIONS, next_stage, STAGE_ROLE (role+mode), resolve_pipeline with the
  no-reviewer fallback, task-kind defaults, stage -> coarse tasks.status, and
  the TaskPipelineState record (with the optimistic version).
- application/engine/protocol.py: the [[TAG attr="v"]]body[[/TAG]] parser and
  its self-closing form, the per-role/mode allow-list, literal bodies (a
  bracket inside a body is not a tag), typed readers (ASSIGN/CREATE_TASK/
  team changes/KNOWLEDGE/EDIT_FILE blocks) and the per-reply limits
  (3 tasks, 3 team changes, 3 knowledge items).
- application/engine/state.py: advance() with the optimistic compare-and-set
  and park_dependents() so a failed dependency never deadlocks its children.
- db/models_engine.py + migration a2b3c4d5e6f2: task_pipeline_state,
  employee_profiles, engine_turns, gate_results as side tables (tasks and
  employees stay locked). Linear head; alembic check reports no drift.
- repositories/engine.py + 58 new tests (test_engine_protocol,
  test_engine_pipeline) covering every pipeline's happy path, illegal
  transitions, exactly-one-winner concurrent advance, dependency parking and
  all parser edge cases.

Suite: 594 passed, ruff clean, mypy clean.
2026-10-14 15:35:31 +03:30

175 lines
7.4 KiB
Python

"""ORM tables owned by Agent 2 (AI workforce engine).
Use ``from app.core.database import Base`` and the helpers in
``app.infrastructure.db.columns`` (``pk()``, ``created()``). Do NOT import from
``app.infrastructure.db.models`` here: that module imports this one (import cycle).
Foreign keys to existing tables are written as plain strings, e.g.
``ForeignKey("organizations.id", ondelete="CASCADE")``. See docs/plan/PLAN-v2.md §6.
Four tables, deliberately split so ``tasks`` and ``employees`` stay untouched
(they are locked):
* ``task_pipeline_state`` — the engine's own view of a task: pipeline, stage,
cycle counters, branch and the optimistic ``version``. One row per task.
* ``employee_profiles`` — which granted model an employee runs on, and how
busy it is. Model identity never leaves the server.
* ``engine_turns`` — one row per agent turn: the audit trail of who thought
what, with a bounded reply excerpt.
* ``gate_results`` — one row per gate verdict (tests, diff guard, no-progress,
green), with the detail that justifies it.
Both side tables cascade from their parent, so deleting a task or an employee
never leaves an orphaned engine row behind.
"""
from __future__ import annotations
from datetime import datetime
from sqlalchemy import (
JSON,
Boolean,
DateTime,
ForeignKey,
Index,
Integer,
String,
Text,
)
from sqlalchemy.orm import Mapped, mapped_column
from app.core.database import Base
from app.domain.base import utcnow
from app.infrastructure.db.columns import created, pk
#: The engine's default limits, mirroring the settings block in ``config.py``.
#: They are column defaults (not settings) so that a database written by an
#: older deployment still carries a sane value.
DEFAULT_MAX_CYCLES = 6
class TaskPipelineStateRow(Base):
__tablename__ = "task_pipeline_state"
task_id: Mapped[str] = mapped_column(
ForeignKey("tasks.id", ondelete="CASCADE"), primary_key=True
)
#: Denormalised from the task so the tenant filter stays a single-table
#: WHERE: the scheduler's hot query never joins back to ``tasks``.
organization_id: Mapped[str] = mapped_column(
ForeignKey("organizations.id", ondelete="CASCADE"), nullable=False, index=True
)
project_id: Mapped[str | None] = mapped_column(
ForeignKey("projects.id", ondelete="CASCADE"), nullable=True
)
pipeline: Mapped[str] = mapped_column(
String(32), default="plan_code_test", nullable=False
)
kind: Mapped[str] = mapped_column(String(16), default="feature", nullable=False)
risk: Mapped[str] = mapped_column(String(8), default="medium", nullable=False)
#: Indexed: every scheduler tick asks "which tasks are at a turn stage".
stage: Mapped[str] = mapped_column(
String(32), default="pending_manager_review", nullable=False, index=True
)
cycle: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
max_cycles: Mapped[int] = mapped_column(
Integer, default=DEFAULT_MAX_CYCLES, nullable=False
)
branch: Mapped[str] = mapped_column(String(120), default="", nullable=False)
last_diff_hash: Mapped[str] = mapped_column(String(64), default="", nullable=False)
same_diff_count: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
retry_count: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
#: A waived test pass must always be explainable: the reason is stored,
#: never inferred (PLAN-v2 §3, green gate).
waiver_reason: Mapped[str] = mapped_column(Text, default="", nullable=False)
parent_task_id: Mapped[str | None] = mapped_column(
ForeignKey("tasks.id", ondelete="SET NULL"), nullable=True
)
depends_on: Mapped[list] = mapped_column(JSON, default=list, nullable=False)
#: Optimistic lock. Every stage move bumps it; a stale write is refused.
version: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
updated_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), default=utcnow, onupdate=utcnow, nullable=False
)
class EmployeeProfileRow(Base):
__tablename__ = "employee_profiles"
__table_args__ = (Index("ix_employee_profile_busy", "busy_task_id"),)
employee_id: Mapped[str] = mapped_column(
ForeignKey("employees.id", ondelete="CASCADE"), primary_key=True
)
#: A granted model id (``org_model_grants.ai_model_id``). Nullable until the
#: owner grants something: an employee exists but is inactive, which is a
#: state the UI shows instead of hiding the employee.
ai_model_id: Mapped[str | None] = mapped_column(String(32), nullable=True)
effort: Mapped[str] = mapped_column(String(16), default="medium", nullable=False)
roles: Mapped[str] = mapped_column(String(255), default="", nullable=False)
hired_by: Mapped[str] = mapped_column(String(8), default="user", nullable=False)
busy_task_id: Mapped[str | None] = mapped_column(
ForeignKey("tasks.id", ondelete="SET NULL"), nullable=True
)
updated_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), default=utcnow, onupdate=utcnow, nullable=False
)
class EngineTurnRow(Base):
__tablename__ = "engine_turns"
__table_args__ = (
Index("ix_engine_turn_task_stage", "task_id", "stage"),
Index("ix_engine_turn_run", "run_id"),
)
id: Mapped[str] = pk()
task_id: Mapped[str] = mapped_column(
ForeignKey("tasks.id", ondelete="CASCADE"), nullable=False
)
run_id: Mapped[str] = mapped_column(
ForeignKey("runs.id", ondelete="CASCADE"), nullable=False
)
employee_id: Mapped[str | None] = mapped_column(
ForeignKey("employees.id", ondelete="SET NULL"), nullable=True
)
role: Mapped[str] = mapped_column(String(24), default="developer", nullable=False)
mode: Mapped[str] = mapped_column(String(16), default="work", nullable=False)
stage: Mapped[str] = mapped_column(String(32), default="", nullable=False)
prompt_chars: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
#: Bounded on write: a reply is unbounded, a row is not.
reply_excerpt: Mapped[str] = mapped_column(Text, default="", nullable=False)
tags: Mapped[dict] = mapped_column(JSON, default=dict, nullable=False)
tool_calls: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
ok: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
error_kind: Mapped[str] = mapped_column(String(16), default="", nullable=False)
started_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), default=utcnow, nullable=False
)
finished_at: Mapped[datetime | None] = mapped_column(
DateTime(timezone=True), nullable=True
)
created_at: Mapped[datetime] = created()
class GateResultRow(Base):
__tablename__ = "gate_results"
__table_args__ = (Index("ix_gate_result_task_gate", "task_id", "gate"),)
id: Mapped[str] = pk()
task_id: Mapped[str] = mapped_column(
ForeignKey("tasks.id", ondelete="CASCADE"), nullable=False
)
gate: Mapped[str] = mapped_column(String(16), default="tests", nullable=False)
ok: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
detail: Mapped[str] = mapped_column(Text, default="", nullable=False)
created_at: Mapped[datetime] = created()
__all__ = [
"DEFAULT_MAX_CYCLES",
"EmployeeProfileRow",
"EngineTurnRow",
"GateResultRow",
"TaskPipelineStateRow",
]