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Teknium
62f353eed5
The salvaged helper was appended to the gateway/run.py facade; new behaviour belongs in a topical sibling. agent/session_activity.py already owns the activity-snapshot contract the three render sites read from, so the formatter moves there as format_iteration_progress and the three call sites import it at module level instead of late-importing the facade. Tests trimmed to the salvage bar (<= 2 invariant tests per fix): one parameterized contract on the helper (unbounded/None hide the ceiling, a real budget keeps N/M) plus the contributor's end-to-end busy-ack test through the real render path. The per-site heartbeat/timeout tests exercised the same helper through mocks and are dropped; evals/gateway_status_render/ iteration_ceiling_ab.py drives all three real render sites with a real AIAgent for before/after evidence (3 sentinel leaks on main -> 0). Related: #103109 (same fix, same target module; credited in the PR), #102845 (third render site, closed by its author in favour of #102817).
92 lines
3.9 KiB
Python
92 lines
3.9 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 sys
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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 format_iteration_progress(api_call_count: Any, max_iterations: Any) -> str:
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"""``iteration N/M`` for user-facing status lines, or ``iteration N`` when the cap is unbounded.
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``AIAgent.max_iterations`` defaults to ``sys.maxsize`` (unlimited), so printing the pair verbatim
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shows ``iteration 3/9223372036854775807`` in busy acks, heartbeats and timeout diagnostics (#102806).
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"""
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try:
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cap = int(max_iterations)
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except (TypeError, ValueError):
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cap = sys.maxsize
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if cap >= sys.maxsize:
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return f"iteration {api_call_count}"
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return f"iteration {api_call_count}/{cap}"
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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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