Files
semif-agent/semif_agent/scheduler.py
T
Denton Social 440e49e76e Author runnable skill bodies via OpenAI-compatible codegen model
create_skill now writes a real predict/act body: the small decision model
still authors title + description (engine.generate), then a larger
OpenAI-compatible model (default qwen38-iq3s) writes the runnable code
against the SKILL.md contract. Bodies persist to data/skills/<cat>/<name>.py,
are hot-loaded via importlib, merged into the running tree, and the request
re-dispatches to the new leaf. The dashboard decision-flow view shows the
title/description with a writing badge while the body is being written.
Codegen failure degrades to a navigable stub.
2026-09-24 00:36:35 -05:00

413 lines
16 KiB
Python

"""The scheduler: gate, choice, score, queue, dispatch.
Every SemIf decision (gate, choice, score, navigation, prediction) is logged.
A high-priority input can preempt the current process, which requeues with its
state preserved; a deferred input is scored and queued by urgency.
"""
from __future__ import annotations
from dataclasses import dataclass, field
from .codegen import CodegenClient, CodegenError, generate_skill_body
from .decisions import DecisionRequest, Option, Request
from .engine import SemIfEngine
from .llm import LLMClient
from .log import DecisionLog
from .queue import UrgencyQueue
from .skill import SkillRunner
from .skills import (
ActionContext,
CategoryRegistry,
CreateCategory,
CreateSkill,
Skill,
SkillBodyStore,
build_skills,
build_tree,
compose_state,
generate_category,
generate_skill,
materialize_skill,
merge_registry,
merge_skill_bodies,
navigate,
)
from .trace import TraceLog
GATE_YES = "yes"
CHOICE_INTERRUPT = "interrupt"
URGENCY_OPTIONS = [
("critical", "Immediate danger or critical failure."),
("high", "Important but not dangerous."),
("medium", "Should be handled reasonably soon."),
("low", "Can wait."),
]
URGENCY_WEIGHTS = {"critical": 1.0, "high": 0.75, "medium": 0.5, "low": 0.25}
@dataclass
class Process:
request: Request
skill: str
weight: float
@dataclass
class DispatchResult:
kind: str # ran | create_skill | error
summary: str
skill: str | None = None
decisions_logged: int = 0
body_written: bool = False
class Scheduler:
def __init__(
self,
engine: SemIfEngine,
llm: LLMClient,
log: DecisionLog,
config: dict,
tau: float = 0.6,
max_reentries: int = 3,
trace: TraceLog | None = None,
codegen: CodegenClient | None = None,
):
self.engine = engine
self.llm = llm
self.log = log
self.trace = trace if trace is not None else TraceLog()
self.config = config
self.tau = tau
self.max_reentries = max_reentries
self.codegen = codegen
self.queue = UrgencyQueue(
max_size=int(config.get("queue", {}).get("max_size", 100)),
age_rate=float(config.get("queue", {}).get("age_rate", 0.0)),
)
self.skills = build_skills(config)
self.tree = build_tree(self.skills)
self.registry = CategoryRegistry(config.get("category_registry", "data/categories.json"))
self.body_store = SkillBodyStore(config.get("skill_bodies", "data/skills"))
merge_registry(self.tree, self.registry.read())
merge_skill_bodies(self.tree, self.body_store, self.registry.read())
self.ctx = ActionContext(engine=self.engine, config=config)
self.runner = SkillRunner(self.ctx, self.llm, self.log)
self.current: Process | None = None
# ---- decision templates (all real SemIf, all logged) ----
def _contains_request(self, request: Request) -> bool:
decision = DecisionRequest(
state=compose_state(request),
question="Does this input contain an actionable request?",
options=[Option(GATE_YES, "Yes, it is actionable."), Option("no", "No, it is not.")],
)
result = self.engine.call(decision)
self.log.append(
decision, result, extra={"phase": "gate", "run_id": request.id}
)
return result.prob(GATE_YES) >= self.tau
def _choice(self, request: Request, current: Process) -> bool:
decision = DecisionRequest(
state=compose_state(request, current=current.skill),
question="Should this be allowed to interrupt the current process?",
options=[
Option(CHOICE_INTERRUPT, "Yes, interrupt the current process."),
Option("defer", "No, wait until the current process finishes."),
],
)
result = self.engine.call(decision)
self.log.append(
decision,
result,
extra={"phase": "choice", "current": current.skill, "run_id": request.id},
)
return result.prob(CHOICE_INTERRUPT) >= self.tau
def _score(self, request: Request, current: str | None = None) -> tuple[float, str]:
decision = DecisionRequest(
state=compose_state(request, current=current),
question="How urgent is this request?",
options=[Option(option_id, description) for option_id, description in URGENCY_OPTIONS],
)
result = self.engine.call(decision)
self.log.append(
decision, result, extra={"phase": "score", "run_id": request.id}
)
label = result.selected
return URGENCY_WEIGHTS[label], label
# ---- intake ----
def submit(self, text: str, source: str = "typed") -> tuple[str, str]:
"""Feed one input. Returns (status, detail)."""
from .engine import EngineUnavailable
try:
return self._submit(text, source)
except EngineUnavailable as exc:
return "error", f"decision engine unavailable: {exc}"
def _submit(self, text: str, source: str = "typed") -> tuple[str, str]:
request = Request(text, source=source)
self.trace.append("submit", request.id, text=text, source=source)
if not self._contains_request(request):
self.trace.append("dropped", request.id, reason="no actionable request")
return "dropped", "no actionable request"
if self.current is None:
weight, label = self._score(request)
self.current = Process(request=request, skill="(scheduling)", weight=weight)
try:
outcome = self._dispatch(request)
finally:
self.current = None
self.trace.append("ran", request.id, skill=outcome.skill, summary=outcome.summary)
return "running", f"[{label}] {outcome.summary}"
interrupt = self._choice(request, self.current)
if interrupt:
previous = self.current
previous.request.resume["from_skill"] = previous.skill
self.queue.push(previous.request, previous.weight)
self.current = Process(request=request, skill="(scheduling)", weight=1.0)
self.trace.append("preempted", request.id, preempted=previous.skill)
outcome = self._dispatch(request)
self.current = None
self.trace.append("ran", request.id, skill=outcome.skill, summary=outcome.summary)
return "preempted", f"interrupted {previous.skill}; {outcome.summary}"
weight, label = self._score(request, current=self.current.skill)
ok = self.queue.push(request, weight)
if not ok:
self.trace.append("rejected", request.id, reason="queue is full")
return "rejected", "queue is full"
self.trace.append("queued", request.id, weight=weight, label=label)
return "queued", f"urgency {label} (weight {weight:.2f})"
def busy(self, text: str, skill: str = "(driving)") -> None:
"""Set a fake in-progress process so the choice/score path is exercised."""
self.current = Process(request=Request(text, source="busy"), skill=skill, weight=1.0)
def idle(self) -> None:
self.current = None
def run_queue(self) -> list[tuple[str, str]]:
"""Process the queue while idle. Returns the outcomes."""
from .engine import EngineUnavailable
results = []
while self.current is None and len(self.queue) > 0:
request = self.queue.pop()
self.trace.append("dequeued", request.id)
self.current = Process(request=request, skill="(scheduling)", weight=0.0)
try:
outcome = self._dispatch(request)
except EngineUnavailable as exc:
outcome = DispatchResult(kind="error", summary=f"engine unavailable: {exc}")
except Exception as exc:
self.trace.append("error", request.id, phase="dispatch", message=str(exc))
outcome = DispatchResult(kind="error", summary=f"dispatch failed: {exc}")
finally:
self.current = None
self.trace.append("ran", request.id, skill=outcome.skill, summary=outcome.summary)
results.append(("ran", f"[{request.id}] {outcome.summary}"))
return results
# ---- dispatch ----
def _dispatch(self, request: Request, _depth: int = 0) -> DispatchResult:
navigation = navigate(self.engine, self.log, self.trace, request, self.tree)
if isinstance(navigation, CreateCategory):
return self._create_category(request)
if isinstance(navigation, CreateSkill):
created = self._create_skill(request, navigation.category)
if created.kind == "create_skill" and created.body_written and _depth < self.max_reentries:
requeued = _requeue(request, request.text)
self.trace.append(
"requeued", request.id, text=request.text, reason="skill created"
)
return self._dispatch(requeued, _depth=_depth + 1)
return created
return self._run_skill(navigation, request)
def _run_skill(self, skill: Skill, request: Request) -> DispatchResult:
outcome = self.runner.run(skill, request)
if outcome.error:
self.trace.append(
"error", request.id, skill=skill.name, message=outcome.error
)
return DispatchResult(kind="error", summary=f"skill error: {outcome.error}")
self.trace.append(
"assessed",
request.id,
skill=skill.name,
success=outcome.success,
summary=outcome.summary,
updated_request=outcome.updated_request,
)
if outcome.updated_request and request.reentries < self.max_reentries:
self.queue.push(_requeue(request, outcome.updated_request), 0.5)
self.trace.append("requeued", request.id, text=outcome.updated_request)
return DispatchResult(
kind="ran",
summary=f"{skill.name}: {'ok' if outcome.success else 'failed'}{outcome.summary}",
skill=skill.name,
decisions_logged=outcome.decisions_logged,
)
def _create_category(self, request: Request) -> DispatchResult:
"""Author a new category stub with the decision model in generation mode."""
from .engine import EngineUnavailable
try:
draft = generate_category(self.engine, request, self.tree)
except (EngineUnavailable, ValueError) as exc:
self.trace.append("error", request.id, phase="create_category", message=str(exc))
return DispatchResult(kind="error", summary=f"create_category failed: {exc}")
if draft.name in self.tree:
self.trace.append(
"error",
request.id,
phase="create_category",
message=f"category {draft.name} already exists",
)
return DispatchResult(
kind="error",
summary=f"create_category failed: {draft.name} already exists",
)
self.registry.register(draft.name, draft.description)
self.tree[draft.name] = []
self.trace.append(
"category_created",
request.id,
category=draft.name,
description=draft.description,
)
return DispatchResult(
kind="create_category",
summary=f"created category {draft.name}: {draft.description}",
skill=draft.name,
)
def _create_skill(self, request: Request, category: str) -> DispatchResult:
"""Author a new skill leaf with the decision model in generation mode.
The small model writes the title + description; a larger OpenAI-
compatible model then writes the runnable body against SKILL.md. The
stub is registered first so the leaf is navigable even if the body
write fails; a successful write is merged into the tree as a runnable
skill and the request re-dispatches to it.
"""
from .engine import EngineUnavailable
try:
draft = generate_skill(self.engine, request, category, self.tree)
except (EngineUnavailable, ValueError) as exc:
self.trace.append("error", request.id, phase="create_skill", message=str(exc))
return DispatchResult(kind="error", summary=f"create_skill failed: {exc}")
existing = {s.name for s in self.tree.get(category, [])}
if draft.name in existing:
self.trace.append(
"error",
request.id,
phase="create_skill",
category=category,
message=f"skill {draft.name} already exists",
)
return DispatchResult(
kind="error",
summary=f"create_skill failed: {draft.name} already exists",
)
self.registry.register_skill(category, draft.name, draft.description)
self.tree.setdefault(category, []).append(
Skill(name=draft.name, category=category, description=draft.description)
)
self.trace.append(
"skill_writing",
request.id,
category=category,
skill=draft.name,
description=draft.description,
model=self.codegen.model if self.codegen else None,
)
if self.codegen is None:
self.trace.append(
"skill_created",
request.id,
category=category,
skill=draft.name,
description=draft.description,
body=None,
written=False,
)
return DispatchResult(
kind="create_skill",
summary=f"created stub {category}.{draft.name}: {draft.description} (no codegen configured)",
skill=draft.name,
)
try:
draft.code = generate_skill_body(
self.codegen, request, category, draft, self.tree
)
skill = materialize_skill(draft, category, self.body_store)
except (CodegenError, ValueError) as exc:
self.trace.append(
"error",
request.id,
phase="create_skill",
category=category,
message=f"skill body write failed: {exc}",
)
return DispatchResult(
kind="create_skill",
summary=f"created stub {category}.{draft.name}: {draft.description} (body write failed: {exc})",
skill=draft.name,
)
skills = self.tree.setdefault(category, [])
for index, existing in enumerate(skills):
if existing.name == draft.name:
skills[index] = skill
break
else:
skills.append(skill)
skills.sort(key=lambda s: s.name)
body_path = self.body_store.body_path(category, draft.name).as_posix()
self.trace.append(
"skill_created",
request.id,
category=category,
skill=draft.name,
description=draft.description,
body=body_path,
written=True,
)
return DispatchResult(
kind="create_skill",
summary=f"created skill {category}.{draft.name}: {draft.description}",
skill=draft.name,
body_written=True,
)
def status(self) -> str:
lines = []
current = f"{self.current.skill} ({self.current.request.id})" if self.current else "idle"
lines.append(f"current: {current}")
lines.append(f"queue: {len(self.queue)} pending")
for weight, request in self.queue.items():
lines.append(f" {request.id} w={weight:.2f} {request.text[:60]}")
return "\n".join(lines)
def _requeue(request: Request, updated_text: str) -> Request:
updated = Request(updated_text, source="requeue")
updated.reentries = request.reentries + 1
updated.meta["parent_run"] = request.id
return updated