Fix session helper on Python 3.9

Author: nvk

claude-plugin/.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "wiki",
   "description": "LLM-compiled knowledge base. Natural language routing, collector catalogs, topic archive lifecycle, inventory tracking, dataset manifests, collection ingestion for external wikis/spec repos, truth-seeking audits, session resume, automated session capture, context rehydration, concurrent-safe derived indexes, topic-isolated wikis, parallel multi-agent research, thesis-driven investigation, repo assessment, Obsidian dual-linking, retardmax mode, and --min-time sustained research.",
-  "version": "0.11.0",
+  "version": "0.11.1",
   "author": {
     "name": "nvk"
   },

plugins/llm-wiki/.codex-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "wiki",
-  "version": "0.11.0",
+  "version": "0.11.1",
   "description": "LLM-compiled knowledge bases for Codex. Build topic-scoped wikis, collect provenance-rich catalogs, archive old topics, track inventory, index datasets, capture and rehydrate session context, ingest sources, compile articles, audit, query, lint, research, and generate outputs.",
   "author": {
     "name": "nvk",

plugins/llm-wiki/hooks/llm_wiki_session.py

@@ -22,6 +22,7 @@
 from pathlib import Path
 from typing import Any
 
+UTC = dt.timezone.utc
 SCHEMA_VERSION = 1
 DEFAULT_TOOL_THRESHOLD = 50
 MAX_LAST_EVENTS = 20
@@ -134,7 +135,7 @@ class HookSkip(Exception):
 
 
 def utc_now() -> str:
-    return dt.datetime.now(dt.UTC).replace(microsecond=0).isoformat().replace("+00:00", "Z")
+    return dt.datetime.now(UTC).replace(microsecond=0).isoformat().replace("+00:00", "Z")
 
 
 def today() -> str:
@@ -197,10 +198,10 @@ def parse_timestamp(value: str) -> dt.datetime:
     try:
         parsed = dt.datetime.fromisoformat(normalized)
     except ValueError:
-        return dt.datetime.now(dt.UTC)
+        return dt.datetime.now(UTC)
     if parsed.tzinfo is None:
-        parsed = parsed.replace(tzinfo=dt.UTC)
-    return parsed.astimezone(dt.UTC)
+        parsed = parsed.replace(tzinfo=UTC)
+    return parsed.astimezone(UTC)
 
 
 def atomic_write(path: Path, text: str) -> None:

scripts/llm-wiki-session

@@ -22,6 +22,7 @@ import textwrap
 from pathlib import Path
 from typing import Any
 
+UTC = dt.timezone.utc
 SCHEMA_VERSION = 1
 DEFAULT_TOOL_THRESHOLD = 50
 MAX_LAST_EVENTS = 20
@@ -134,7 +135,7 @@ class HookSkip(Exception):
 
 
 def utc_now() -> str:
-    return dt.datetime.now(dt.UTC).replace(microsecond=0).isoformat().replace("+00:00", "Z")
+    return dt.datetime.now(UTC).replace(microsecond=0).isoformat().replace("+00:00", "Z")
 
 
 def today() -> str:
@@ -197,10 +198,10 @@ def parse_timestamp(value: str) -> dt.datetime:
     try:
         parsed = dt.datetime.fromisoformat(normalized)
     except ValueError:
-        return dt.datetime.now(dt.UTC)
+        return dt.datetime.now(UTC)
     if parsed.tzinfo is None:
-        parsed = parsed.replace(tzinfo=dt.UTC)
-    return parsed.astimezone(dt.UTC)
+        parsed = parsed.replace(tzinfo=UTC)
+    return parsed.astimezone(UTC)
 
 
 def atomic_write(path: Path, text: str) -> None: