624a752e79
- deadline: _result()/_abandon() replace 7 BoundedResult constructions and 2 cancel+callback sites; timers handled as a list; dead raise_if_timed_out removed. - file_safety: retired classify_cross_profile_target (0 refs; get_cross_profile_warning stub kept for external callers), _home_and_resolved/_mirror_warning shared by the sandbox/container mirror guards; _find_sandbox_mirror_segments inlined. - estop: _hermes_home/_canonical_root now the file_safety helpers; _reset_log_state_for_tests inlined into its only test. - subagent_lifecycle: _validate_request driven by _UNSUPPORTED_REQUEST_FIELDS table. - turn_liveness: dead start()/_abort_message removed, _emit_warning shared. - process_bootstrap: _enable_happy_eyeballs reused by the client variant. - Comment/docstring compaction across the remaining leaf modules.
92 lines
3.4 KiB
Python
92 lines
3.4 KiB
Python
"""Shared session activity observation contract.
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Observation-only: timestamp + bounded description/provenance. Notification,
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timeout, kill and retry policy live in their own components. Provenance is a
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small closed enum of *noun* sources; the default agent clock stamps ``unknown``
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unless a writer passes an explicit ``provenance=``.
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"""
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from __future__ import annotations
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import time
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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
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# SessionDB write path is contended and the heartbeat is an observation-only
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# projection that never justifies extra write pressure. Deliberately a code
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# constant (no config can turn it into a high-frequency writer); matches the
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# 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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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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if len(text) <= ACTIVITY_DESCRIPTION_MAX:
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return text
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return text[: ACTIVITY_DESCRIPTION_MAX - 1] + "…"
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def normalize_activity_provenance(
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provenance: Optional[ActivityProvenance | str],
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) -> 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 durable persist rate-limit so the next stamp writes through
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(terminal compression labels must not stay stuck on mid-compress text)."""
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try:
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agent._session_activity_last_persist_mono = 0.0
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except Exception:
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pass
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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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snap: dict[str, Any] = {
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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,
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"last_activity_desc": desc,
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"description": desc,
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"provenance": prov,
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}
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if extra:
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snap.update(dict(extra))
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return snap
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