Teknium
e83816a4d1
For each issue anchor present in BASE 63279301bc non-test .py and absent on HEAD, the BASE comment/docstring block was re-attached at the HEAD location of the code it explained (matched by the distinctive code line / enclosing def). Sentences already covered by an existing HEAD comment were deduped; the issue number always survives. Insert-only: no code lines changed.
76 lines
3.3 KiB
Python
76 lines
3.3 KiB
Python
"""Shared session activity observation contract: timestamp + bounded description/provenance, observation
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only (notification, timeout, kill and retry policy live elsewhere). Provenance is a small closed enum of
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*noun* sources; the default agent clock stamps ``unknown`` unless a writer passes ``provenance=``."""
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from __future__ import annotations
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import time
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from contextlib import suppress
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from enum import Enum
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from typing import Any, Mapping, Optional
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ACTIVITY_DESCRIPTION_MAX = 120
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# Durable SessionDB heartbeat cadence. Contract: MUST stay >= 30s — the SessionDB write path is contended and
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# this observation-only projection never justifies extra write pressure. A code constant on purpose (no config
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# can make it a high-frequency writer); matches the kanban auto-heartbeat. force_persist (terminal stamps) is the only bypass.
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SESSION_ACTIVITY_HEARTBEAT_MIN_INTERVAL_SECONDS = 60.0
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class ActivityProvenance(str, Enum):
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"""Where a durable/in-memory activity stamp came from."""
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UNKNOWN = "unknown"
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# Compression writers: heartbeat, host timeout, cooldown, turn hold.
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# See #72424.
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AGENT_COMPRESSION = "agent.compression"
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AGENT_COMPRESSION_TIMEOUT = "agent.compression_timeout"
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AGENT_COMPRESSION_COOLDOWN = "agent.compression_cooldown"
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AGENT_COMPRESSION_TURNHOLD = "agent.compression_turnhold"
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def bound_activity_description(description: Optional[str]) -> str:
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"""Clamp free-form activity text to the shared description budget."""
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text = (description or "").strip()
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return text if len(text) <= ACTIVITY_DESCRIPTION_MAX else text[: ACTIVITY_DESCRIPTION_MAX - 1] + "…"
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def normalize_activity_provenance(provenance: Optional[ActivityProvenance | str]) -> ActivityProvenance:
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"""Return a known provenance, or ``UNKNOWN`` when unset/unrecognized."""
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if isinstance(provenance, ActivityProvenance):
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return provenance
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try:
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return ActivityProvenance((provenance or "").strip())
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except ValueError:
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return ActivityProvenance.UNKNOWN
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def reset_session_activity_persist_window(agent: Any) -> None:
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"""Clear the persist rate-limit so the next stamp writes through (terminal compression labels must not stick on mid-compress text)."""
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with suppress(Exception):
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agent._session_activity_last_persist_mono = 0.0
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def build_activity_snapshot(
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*,
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last_activity_at: Optional[float],
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last_activity_description: Optional[str],
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last_activity_provenance: Optional[ActivityProvenance | str] = None,
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now: Optional[float] = None,
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extra: Optional[Mapping[str, Any]] = None,
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) -> dict[str, Any]:
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"""Build the shared activity snapshot (plus optional caller extras)."""
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when = float(last_activity_at) if last_activity_at is not None else None
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clock = float(now if now is not None else time.time())
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desc = bound_activity_description(last_activity_description)
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prov = normalize_activity_provenance(last_activity_provenance).value
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return {
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"last_activity_at": when,
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"last_activity_description": desc,
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"last_activity_provenance": prov,
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"seconds_since_activity": round(clock - when, 1) if when is not None else None,
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# Short aliases used by existing gateway/delegate readers.
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"last_activity_ts": when, "last_activity_desc": desc, "description": desc, "provenance": prov,
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**(extra or {}),
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}
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