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fix(prompt): invalidate bootstrap cache on wiki changes

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Add a session-bootstrap content signature to the executor prompt cache key so identity/wiki updates invalidate cached system prompts and take effect on the next turn.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
oliver 2026-05-06 23:42:52 +08:00
parent 5fc0805c69
commit b15ff4c31c
1 changed files with 57 additions and 0 deletions
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57
runtime/system_prompt.py
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@ -1,8 +1,11 @@
from __future__ import annotations
import hashlib
import threading
from pathlib import Path
from typing import Any
from oclaw.platform.config.paths import PROJECT_ROOT
from oclaw.runtime.memory_stage import render_memory_context_block
from oclaw.runtime.project_context_prompt import build_project_context_block
from oclaw.runtime.skills_prompt import build_skills_catalog_block
@ -19,6 +22,59 @@ _EXECUTOR_STATIC_PROMPT_CACHE_LOCK = threading.Lock()
_EXECUTOR_STATIC_PROMPT_CACHE: dict[tuple[Any, ...], str] = {}
def _file_stat_signature(path: Path) -> str:
try:
st = path.stat()
return f"{path.as_posix()}:{int(st.st_mtime_ns)}:{int(st.st_size)}"
except Exception:
return f"{path.as_posix()}:missing"
def _session_bootstrap_content_signature(*, skill_binding_role: str | None, workspace_dir: str | None) -> str:
"""Best-effort signature for session-bootstrap content sources.
When this signature changes, cached executor system prompts are invalidated,
so the next turn rebuilds project context and re-runs bootstrap hooks.
"""
repo = Path(PROJECT_ROOT).resolve()
role = str(skill_binding_role or "").strip().lower()
ws = Path(workspace_dir).expanduser().resolve() if str(workspace_dir or "").strip() else None
targets: list[Path] = []
# session-bootstrap static source files
targets.append((repo / "runtime" / "skills" / "session-bootstrap" / "SOUL.md").resolve())
targets.append((repo / "runtime" / "skills" / "session-bootstrap" / "IDENTITY.md").resolve())
# wiki global memory/improvement sources
targets.append((repo / "data" / "wiki" / "improvement" / "learnings.md").resolve())
targets.append((repo / "data" / "wiki" / "improvement" / "errors.md").resolve())
targets.append((repo / "data" / "wiki" / "improvement" / "feature-requests.md").resolve())
core_dir = (repo / "data" / "wiki" / "core").resolve()
if core_dir.exists() and core_dir.is_dir():
for p in sorted(core_dir.glob("*.md"), key=lambda x: x.name.lower()):
targets.append(p.resolve())
if role:
role_dir = (repo / "data" / "wiki" / "experts" / role).resolve()
if role_dir.exists() and role_dir.is_dir():
for p in sorted(role_dir.glob("*.md"), key=lambda x: x.name.lower()):
targets.append(p.resolve())
if ws is not None:
mem_dir = (ws / "memory").resolve()
if mem_dir.exists() and mem_dir.is_dir():
mem_files = [p for p in mem_dir.glob("*.md") if p.is_file()]
mem_files.sort(key=lambda p: p.stat().st_mtime if p.exists() else 0.0, reverse=True)
if mem_files:
targets.append(mem_files[0].resolve())
h = hashlib.sha256()
for p in targets:
h.update(_file_stat_signature(p).encode("utf-8", errors="ignore"))
h.update(b"\n")
return h.hexdigest()[:24]
def _executor_prompt_settings_signature(store: Any) -> tuple[str, ...]:
keys = (
"AIA_SKILL_RUNTIME_ENABLED",
@ -145,6 +201,7 @@ def get_executor_prompt_static(
bool(tools is not None),
int(bool(excl)),
str(lane_seg or ""),
_session_bootstrap_content_signature(skill_binding_role=skill_binding_role, workspace_dir=workspace_dir),
)
with _EXECUTOR_STATIC_PROMPT_CACHE_LOCK:
cached = _EXECUTOR_STATIC_PROMPT_CACHE.get(cache_key)