mirror of
https://github.com/SHOGGOTH-SECTOR/sica-fondt.git
synced 2026-08-01 00:23:15 +00:00
24f816b6a3
Place useful parts of the surrounding repos into sica-fondt by layer, per the
body model (Ada = membrane; brain/endocrine/capabilities/knowledge non-Ada):
- brain/ LLM reasoning + providers (dapr, hermes, MoMoA)
- capabilities/ REPRAG sidecars: hermes tools/skills, dapr tools, parallel
dispatch, A51 channels, and the OSINT cluster
- knowledge/ LORAG corpus: 754 cyber-skills, agency personas, secure-coding,
MITRE ATT&CK data
- reference/ defensive threat-reference (C3, shhbruh doc) + AdaYaml parser
License handling: AGPL sources (worldosint, advanced_evolution, mercury,
Reticulum) and GPL DeTTECT are SPEC-only clean-room/port descriptions — no
copyleft code copied. MIT/Apache/data parts copied as working trees.
Safety: shhbruh escape/persistence material and C3 covert-C2 kept as reference
only, not wired into the running organism. See CONSOLIDATION.md.
https://claude.ai/code/session_01UehUqEXXJJCsHoA4voCU5c
965 lines
36 KiB
Python
965 lines
36 KiB
Python
"""CaMeL-style trust separation for Hermes tool execution.
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This module separates trusted control inputs from untrusted data inputs:
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- trusted control comes from the system prompt, approved skills, and user turns
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- untrusted data comes from tool outputs and retrieved context
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- sensitive tools are authorized against a trusted action plan, not against
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instructions embedded in untrusted content
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"""
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from __future__ import annotations
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from collections import Counter
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from dataclasses import asdict, dataclass, field
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from datetime import datetime, timezone
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import json
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import re
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from typing import Any, Dict, Iterable, List, Sequence
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CAMEL_UNTRUSTED_PREFIX = "[CaMeL: UNTRUSTED TOOL DATA]"
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CAMEL_GUARD_RUNTIME_CHOICES = ("on", "off", "monitor", "enforce", "legacy")
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_CAMEL_GUARD_MODE_ALIASES = {
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"on": "monitor",
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"off": "off",
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"monitor": "monitor",
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"enforce": "enforce",
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"legacy": "off",
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}
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_TRUSTED_CONTROL_TOOLS = {
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"clarify",
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"skill_view",
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"skills_list",
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"todo",
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}
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_SENSITIVE_TOOL_CAPABILITIES = {
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"browser_click": "browser_interaction",
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"browser_press": "browser_interaction",
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"browser_type": "browser_interaction",
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"cronjob": "scheduled_action",
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"delegate_task": "delegation",
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"execute_code": "command_execution",
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"ha_call_service": "external_side_effect",
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"memory": "persistent_memory",
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"mixture_of_agents": "delegation",
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"patch": "file_mutation",
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"rl_edit_config": "file_mutation",
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"rl_start_training": "external_side_effect",
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"rl_stop_training": "external_side_effect",
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"send_message": "external_messaging",
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"skill_manage": "skill_mutation",
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"terminal": "command_execution",
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"write_file": "file_mutation",
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}
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_CAPABILITY_LABELS = {
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"browser_interaction": "browser interaction",
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"command_execution": "command execution",
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"delegation": "delegation / subagents",
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"external_messaging": "external messaging",
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"external_side_effect": "external system side effects",
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"file_mutation": "file mutation",
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"persistent_memory": "persistent memory writes",
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"scheduled_action": "scheduled actions",
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"skill_mutation": "skill mutation",
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}
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_CAPABILITY_ORDER = tuple(sorted(_CAPABILITY_LABELS.keys()))
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_CAPABILITY_CLASSIFIER_PROMPT = """You classify trusted operator intent for Hermes' CaMeL guard.
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Input contains only trusted user instructions. You do not have tools, memory, or external context.
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Return strict JSON with this exact shape:
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{
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"goal_summary": "short summary",
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"allowed_capabilities": ["command_execution"],
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"denied_capabilities": ["external_messaging"],
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"rationale": "short reason"
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}
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Rules:
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- Only allow a capability when the trusted user explicitly asks for it or it is clearly necessary.
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- If intent is ambiguous, do not allow the capability.
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- Put a capability in denied_capabilities only when the user explicitly forbids it.
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- Do not invent capabilities outside the allowed list.
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- Be conservative.
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Allowed capability ids:
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""" + "\n".join(
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f"- {cap}: {_CAPABILITY_LABELS[cap]}" for cap in sorted(_CAPABILITY_LABELS.keys())
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)
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_SUSPICIOUS_INSTRUCTION_PATTERNS = [
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(re.compile(r"ignore\s+(previous|all|above|prior)\s+instructions", re.IGNORECASE), "ignore_previous_instructions"),
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(re.compile(r"do\s+not\s+tell\s+the\s+user", re.IGNORECASE), "hide_from_user"),
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(re.compile(r"(reveal|show|print|dump).*(system prompt|api key|token|secret|credential)", re.IGNORECASE), "secret_exfiltration"),
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(re.compile(r"system\s+prompt\s+override", re.IGNORECASE), "system_prompt_override"),
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(re.compile(r"send_message|tweet|email|dm|post this", re.IGNORECASE), "embedded_side_effect_instruction"),
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]
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_OUTPUT_INSTRUCTION_PATTERNS = [
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re.compile(r"\b(?:begin|start)\s+your\s+reply\s+with:\s*(.+)$", re.IGNORECASE),
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re.compile(r"\b(?:prefix|start)\s+your\s+output\s+with:\s*(.+)$", re.IGNORECASE),
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re.compile(r"\brespond\s+with:\s*(.+)$", re.IGNORECASE),
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re.compile(r"\boutput\s+exactly:\s*(.+)$", re.IGNORECASE),
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re.compile(r"\bthen\s+write:\s*(.+)$", re.IGNORECASE),
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re.compile(r"\bwrite:\s*(.+)$", re.IGNORECASE),
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]
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_OUTPUT_ANALYSIS_CONTEXT_RE = re.compile(
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r"\b(quote|repeat|show\s+the\s+hidden|extract\s+the\s+hidden|what\s+does\s+the\s+hidden|"
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r"analyze\s+the\s+hidden|explain\s+the\s+hidden|classify\s+the\s+hidden|prompt injection)\b",
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re.IGNORECASE,
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)
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_SYSTEM_ANNOTATION_RE = re.compile(r"\[System:.*?\]", re.IGNORECASE | re.DOTALL)
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_URL_RE = re.compile(r"https?://\S+", re.IGNORECASE)
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_PATH_RE = re.compile(
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r"(?:~?/[\w.\-~/]+|"
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r"(?:\./|\.\./)[\w.\-~/]+|"
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r"\b[\w.\-]+\.(?:py|js|ts|tsx|jsx|json|ya?ml|md|txt|sh|toml|ini|cfg|go|rs|java|c|cc|cpp|h|hpp|sql)\b)"
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)
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def _truncate(text: str, limit: int) -> str:
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text = " ".join((text or "").split())
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if len(text) <= limit:
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return text
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return text[: limit - 3].rstrip() + "..."
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def _strip_system_annotations(text: str) -> str:
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return _SYSTEM_ANNOTATION_RE.sub("", text or "").strip()
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def _extract_urls(text: str) -> List[str]:
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seen: List[str] = []
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for match in _URL_RE.findall(text or ""):
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if match not in seen:
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seen.append(match)
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return seen[:4]
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def _extract_paths(text: str) -> List[str]:
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seen: List[str] = []
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for match in _PATH_RE.findall(text or ""):
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if match not in seen:
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seen.append(match)
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return seen[:6]
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def _extract_suspicious_flags(text: str) -> List[str]:
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flags: List[str] = []
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haystack = text or ""
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for pattern, label in _SUSPICIOUS_INSTRUCTION_PATTERNS:
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if pattern.search(haystack):
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flags.append(label)
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return flags
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def _extract_first_json_object(text: str) -> Dict[str, Any] | None:
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haystack = (text or "").strip()
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if not haystack:
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return None
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try:
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parsed = json.loads(haystack)
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if isinstance(parsed, dict):
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return parsed
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except Exception:
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pass
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start = haystack.find("{")
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end = haystack.rfind("}")
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if start == -1 or end == -1 or end <= start:
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return None
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snippet = haystack[start : end + 1]
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try:
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parsed = json.loads(snippet)
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except Exception:
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return None
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return parsed if isinstance(parsed, dict) else None
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def _call_trusted_capability_classifier(messages: List[Dict[str, str]]) -> Dict[str, Any]:
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from agent.auxiliary_client import call_llm
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response = call_llm(
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task="camel_guard",
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messages=messages,
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temperature=0,
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max_tokens=220,
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timeout=12.0,
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)
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content = ""
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if getattr(response, "choices", None):
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choice = response.choices[0]
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message = getattr(choice, "message", None)
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content = getattr(message, "content", "") or ""
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parsed = _extract_first_json_object(content)
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if not parsed:
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raise ValueError("CaMeL classifier returned invalid JSON")
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return parsed
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def _normalize_for_match(text: str) -> str:
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return " ".join((text or "").split()).strip().casefold()
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def _extract_output_markers(text: str) -> List[str]:
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markers: List[str] = []
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for raw_line in (text or "").splitlines():
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line = raw_line.strip().lstrip("-*").strip()
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if not line:
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continue
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for pattern in _OUTPUT_INSTRUCTION_PATTERNS:
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match = pattern.search(line)
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if not match:
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continue
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marker = match.group(1).strip().strip("`\"'")
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marker = re.sub(r"\s+", " ", marker).strip()
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if marker and marker not in markers:
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markers.append(marker[:120])
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return markers
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def _response_starts_with_marker(response_text: str, marker: str) -> bool:
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normalized_marker = _normalize_for_match(marker)
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if not normalized_marker:
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return False
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lines = [line.strip() for line in (response_text or "").splitlines() if line.strip()]
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for line in lines[:4]:
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if _normalize_for_match(line).startswith(normalized_marker):
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return True
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return False
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def _strip_marker_from_response(response_text: str, marker: str) -> str:
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if not response_text:
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return response_text
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escaped = re.escape(marker)
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leading_line_pattern = re.compile(rf"^\s*{escaped}\s*$\n?", re.IGNORECASE | re.MULTILINE)
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updated = leading_line_pattern.sub("", response_text, count=1)
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inline_prefix_pattern = re.compile(rf"^\s*{escaped}(?:\s*[:\-]\s*)?", re.IGNORECASE)
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updated = inline_prefix_pattern.sub("", updated, count=1)
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return updated.lstrip()
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def _format_capabilities(capabilities: Sequence[str]) -> str:
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if not capabilities:
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return "none"
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return ", ".join(_CAPABILITY_LABELS.get(cap, cap.replace("_", " ")) for cap in capabilities)
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def _extract_source_label(tool_name: str) -> str:
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if tool_name.startswith("mcp_"):
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return "mcp"
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if tool_name.startswith("browser_"):
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return "browser"
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return tool_name
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def _tool_capability(tool_name: str, tool_args: Dict[str, Any] | None = None) -> str:
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tool_args = tool_args or {}
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if tool_name == "send_message" and str(tool_args.get("action", "send")).lower() == "list":
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return ""
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if tool_name == "cronjob" and str(tool_args.get("action", "")).lower() == "list":
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return ""
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return _SENSITIVE_TOOL_CAPABILITIES.get(tool_name, "")
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def normalize_camel_guard_mode(value: Any, *, default: str = "monitor") -> str:
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raw = "" if value is None else str(value).strip().lower()
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if not raw:
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raw = default
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normalized = _CAMEL_GUARD_MODE_ALIASES.get(raw, raw)
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if normalized not in {"off", "monitor", "enforce"}:
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normalized = default
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return normalized
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def is_untrusted_tool(tool_name: str) -> bool:
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# In the full CaMeL model, nearly all tool outputs are data, not control.
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return tool_name not in _TRUSTED_CONTROL_TOOLS
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def is_sensitive_tool(tool_name: str, tool_args: Dict[str, Any] | None = None) -> bool:
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return bool(_tool_capability(tool_name, tool_args))
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def _message_contains_untrusted_marker(message: Dict[str, Any]) -> bool:
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if message.get("_camel_untrusted"):
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return True
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content = message.get("content", "")
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if isinstance(content, str) and CAMEL_UNTRUSTED_PREFIX in content:
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return True
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if not isinstance(content, str):
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return False
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try:
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parsed = json.loads(content)
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except Exception:
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return False
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if isinstance(parsed, dict):
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meta = parsed.get("_camel_guard")
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return isinstance(meta, dict) and meta.get("trust") == "untrusted_data"
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return False
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def _tool_call_source_index(history: Sequence[Dict[str, Any]]) -> Dict[str, str]:
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index: Dict[str, str] = {}
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for message in history:
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if message.get("role") != "assistant":
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continue
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for tool_call in message.get("tool_calls") or []:
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if not isinstance(tool_call, dict):
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continue
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call_id = str(tool_call.get("id") or "").strip()
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function = tool_call.get("function") or {}
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tool_name = str(function.get("name") or "").strip()
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if call_id and tool_name:
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index[call_id] = tool_name
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return index
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def _extract_untrusted_record(message: Dict[str, Any]) -> tuple[str, List[str], List[str]] | None:
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if not _message_contains_untrusted_marker(message):
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return None
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source = message.get("_camel_source") or "history"
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flags: List[str] = []
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markers: List[str] = []
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content = message.get("content", "")
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if isinstance(content, str):
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try:
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parsed = json.loads(content)
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except Exception:
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parsed = None
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if isinstance(parsed, dict):
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meta = parsed.get("_camel_guard")
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if isinstance(meta, dict):
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source = str(meta.get("source") or source)
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raw_flags = meta.get("flags") or []
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flags = [str(flag) for flag in raw_flags if str(flag).strip()]
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raw_markers = meta.get("output_markers") or []
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markers = [str(marker) for marker in raw_markers if str(marker).strip()]
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else:
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flags = _extract_suspicious_flags(content)
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markers = _extract_output_markers(content)
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return source, flags, markers
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def sanitize_message_for_api(message: Dict[str, Any]) -> Dict[str, Any]:
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"""Drop internal guard bookkeeping before sending messages to providers."""
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sanitized = {}
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for key, value in message.items():
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if key.startswith("_camel_"):
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continue
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sanitized[key] = value
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return sanitized
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@dataclass
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class CamelGuardConfig:
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enabled: bool = False
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mode: str = "monitor"
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wrap_untrusted_tool_results: bool = False
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trace_enabled: bool = True
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trace_preview_chars: int = 220
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@classmethod
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def from_dict(cls, raw: Dict[str, Any] | None) -> "CamelGuardConfig":
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raw = raw or {}
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mode = normalize_camel_guard_mode(raw.get("mode"), default="monitor")
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preview_chars = raw.get("trace_preview_chars", 220)
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try:
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preview_chars = int(preview_chars)
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except Exception:
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preview_chars = 220
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preview_chars = max(80, min(preview_chars, 1000))
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return cls(
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enabled=bool(raw.get("enabled", False)),
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mode=mode,
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wrap_untrusted_tool_results=bool(raw.get("wrap_untrusted_tool_results", False)),
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trace_enabled=bool(raw.get("trace_enabled", True)),
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trace_preview_chars=preview_chars,
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)
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@dataclass
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class CamelPlan:
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operator_request: str = ""
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goal_summary: str = ""
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trusted_context_excerpt: List[str] = field(default_factory=list)
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allowed_capabilities: List[str] = field(default_factory=list)
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denied_capabilities: List[str] = field(default_factory=list)
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read_only: bool = True
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mentioned_urls: List[str] = field(default_factory=list)
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mentioned_paths: List[str] = field(default_factory=list)
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planner: str = "none"
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planner_status: str = "disabled"
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planner_notes: str = ""
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@classmethod
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def from_trusted_history(
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cls, current_user_message: str, trusted_user_history: Sequence[str]
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) -> "CamelPlan":
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cleaned_current = _strip_system_annotations(current_user_message)
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history = [_strip_system_annotations(msg) for msg in trusted_user_history if _strip_system_annotations(msg)]
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if cleaned_current and (not history or history[-1] != cleaned_current):
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history = [*history, cleaned_current]
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recent = history[-3:]
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policy_source = "\n".join(recent)
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goal_source = cleaned_current or (recent[-1] if recent else "")
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goal_summary = _truncate(goal_source or "No explicit operator goal available.", 220)
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urls = _extract_urls(policy_source)
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paths = _extract_paths(policy_source)
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trusted_excerpt = [_truncate(item, 160) for item in recent[-3:]]
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return cls(
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operator_request=cleaned_current or "",
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goal_summary=goal_summary,
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trusted_context_excerpt=trusted_excerpt,
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allowed_capabilities=[],
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denied_capabilities=[],
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read_only=True,
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mentioned_urls=urls,
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mentioned_paths=paths,
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planner="none",
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planner_status="disabled",
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planner_notes="CaMeL disabled or classifier not run",
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)
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@dataclass
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class CamelDecision:
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allowed: bool
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reason: str
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sources: List[str] = field(default_factory=list)
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capability: str = ""
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@dataclass
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class CamelResponseDecision:
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allowed: bool
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reason: str
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content: str
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matched_markers: List[str] = field(default_factory=list)
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@dataclass
|
|
class CamelToolDecisionTrace:
|
|
tool_name: str
|
|
capability: str
|
|
allowed: bool
|
|
reason: str
|
|
sources: List[str] = field(default_factory=list)
|
|
tool_args_preview: Dict[str, Any] = field(default_factory=dict)
|
|
|
|
|
|
@dataclass
|
|
class CamelResponseTrace:
|
|
allowed: bool
|
|
reason: str
|
|
matched_markers: List[str] = field(default_factory=list)
|
|
original_preview: str = ""
|
|
final_preview: str = ""
|
|
|
|
|
|
@dataclass
|
|
class CamelTurnTrace:
|
|
turn_index: int
|
|
started_at: str
|
|
runtime_mode: str
|
|
operator_request: str = ""
|
|
goal_summary: str = ""
|
|
trusted_context_excerpt: List[str] = field(default_factory=list)
|
|
planner: str = ""
|
|
planner_status: str = ""
|
|
planner_notes: str = ""
|
|
untrusted_sources: List[str] = field(default_factory=list)
|
|
untrusted_source_counts: Dict[str, int] = field(default_factory=dict)
|
|
suspicious_flags: Dict[str, int] = field(default_factory=dict)
|
|
output_markers: List[str] = field(default_factory=list)
|
|
tool_decisions: List[CamelToolDecisionTrace] = field(default_factory=list)
|
|
response_decision: CamelResponseTrace | None = None
|
|
|
|
|
|
@dataclass
|
|
class CamelGuard:
|
|
config: CamelGuardConfig
|
|
latest_trusted_user_message: str = ""
|
|
trusted_user_history: List[str] = field(default_factory=list)
|
|
current_plan: CamelPlan = field(default_factory=CamelPlan)
|
|
untrusted_sources: List[str] = field(default_factory=list)
|
|
untrusted_source_counts: Dict[str, int] = field(default_factory=dict)
|
|
untrusted_flag_counts: Dict[str, int] = field(default_factory=dict)
|
|
untrusted_output_markers: List[str] = field(default_factory=list)
|
|
session_id: str = ""
|
|
trace_turns: List[CamelTurnTrace] = field(default_factory=list)
|
|
current_turn_trace: CamelTurnTrace | None = None
|
|
_plan_cache: Dict[str, CamelPlan] = field(default_factory=dict)
|
|
|
|
def set_session_id(self, session_id: str) -> None:
|
|
self.session_id = session_id or ""
|
|
|
|
def _trace_mode(self) -> str:
|
|
if not self.config.enabled or self.config.mode == "off":
|
|
return "off"
|
|
return self.config.mode
|
|
|
|
def _tool_args_preview(self, tool_args: Dict[str, Any] | None = None) -> Dict[str, Any]:
|
|
preview: Dict[str, Any] = {}
|
|
tool_args = tool_args or {}
|
|
for index, (key, value) in enumerate(tool_args.items()):
|
|
if index >= 6:
|
|
preview["..."] = f"+{len(tool_args) - 6} more fields"
|
|
break
|
|
if isinstance(value, str):
|
|
preview[key] = _truncate(value, self.config.trace_preview_chars // 2)
|
|
elif isinstance(value, (int, float, bool)) or value is None:
|
|
preview[key] = value
|
|
else:
|
|
try:
|
|
serialized = json.dumps(value, ensure_ascii=False, default=str)
|
|
except Exception:
|
|
serialized = str(value)
|
|
preview[key] = _truncate(serialized, self.config.trace_preview_chars // 2)
|
|
return preview
|
|
|
|
def _sync_current_turn_trace(self) -> None:
|
|
if not self.config.trace_enabled or not self.current_turn_trace:
|
|
return
|
|
|
|
self.current_turn_trace.runtime_mode = self._trace_mode()
|
|
self.current_turn_trace.operator_request = self.current_plan.operator_request
|
|
self.current_turn_trace.goal_summary = self.current_plan.goal_summary
|
|
self.current_turn_trace.trusted_context_excerpt = list(self.current_plan.trusted_context_excerpt)
|
|
self.current_turn_trace.planner = self.current_plan.planner
|
|
self.current_turn_trace.planner_status = self.current_plan.planner_status
|
|
self.current_turn_trace.planner_notes = self.current_plan.planner_notes
|
|
self.current_turn_trace.untrusted_sources = list(self.untrusted_sources)
|
|
self.current_turn_trace.untrusted_source_counts = dict(self.untrusted_source_counts)
|
|
self.current_turn_trace.suspicious_flags = dict(self.untrusted_flag_counts)
|
|
self.current_turn_trace.output_markers = list(self.untrusted_output_markers)
|
|
|
|
def _plan_cache_key(self, current_user_message: str, trusted_user_history: Sequence[str]) -> str:
|
|
cleaned_current = _strip_system_annotations(current_user_message)
|
|
history = [_strip_system_annotations(msg) for msg in trusted_user_history if _strip_system_annotations(msg)]
|
|
if cleaned_current and (not history or history[-1] != cleaned_current):
|
|
history = [*history, cleaned_current]
|
|
recent = history[-3:]
|
|
return "\n".join(recent).strip().casefold()
|
|
|
|
def _base_trusted_plan(self) -> CamelPlan:
|
|
plan = CamelPlan.from_trusted_history(
|
|
self.latest_trusted_user_message,
|
|
self.trusted_user_history,
|
|
)
|
|
if self.config.enabled and self.config.mode != "off":
|
|
plan.planner = "auxiliary_llm"
|
|
plan.planner_status = "deferred"
|
|
plan.planner_notes = (
|
|
"Classifier deferred until a sensitive tool decision requires "
|
|
"trusted-capability authorization under untrusted context"
|
|
)
|
|
return plan
|
|
|
|
def _classify_trusted_plan(self, current_user_message: str, trusted_user_history: Sequence[str]) -> CamelPlan:
|
|
base_plan = CamelPlan.from_trusted_history(current_user_message, trusted_user_history)
|
|
if not self.config.enabled or self.config.mode == "off":
|
|
return base_plan
|
|
|
|
cache_key = self._plan_cache_key(current_user_message, trusted_user_history)
|
|
if cache_key and cache_key in self._plan_cache:
|
|
return self._plan_cache[cache_key]
|
|
|
|
classifier_messages = [
|
|
{"role": "system", "content": _CAPABILITY_CLASSIFIER_PROMPT},
|
|
{
|
|
"role": "user",
|
|
"content": json.dumps(
|
|
{
|
|
"current_request": base_plan.operator_request,
|
|
"recent_trusted_user_turns": base_plan.trusted_context_excerpt,
|
|
"mentioned_urls": base_plan.mentioned_urls,
|
|
"mentioned_paths": base_plan.mentioned_paths,
|
|
},
|
|
ensure_ascii=False,
|
|
),
|
|
},
|
|
]
|
|
|
|
try:
|
|
payload = _call_trusted_capability_classifier(classifier_messages)
|
|
raw_allowed = payload.get("allowed_capabilities") or []
|
|
raw_denied = payload.get("denied_capabilities") or []
|
|
allowed = sorted(
|
|
cap for cap in {str(item).strip() for item in raw_allowed}
|
|
if cap in _CAPABILITY_ORDER
|
|
)
|
|
denied = sorted(
|
|
cap for cap in {str(item).strip() for item in raw_denied}
|
|
if cap in _CAPABILITY_ORDER
|
|
)
|
|
allowed = [cap for cap in allowed if cap not in denied]
|
|
goal_summary = _truncate(str(payload.get("goal_summary") or base_plan.goal_summary), 220)
|
|
rationale = _truncate(str(payload.get("rationale") or "Classifier-derived policy plan"), 260)
|
|
plan = CamelPlan(
|
|
operator_request=base_plan.operator_request,
|
|
goal_summary=goal_summary,
|
|
trusted_context_excerpt=list(base_plan.trusted_context_excerpt),
|
|
allowed_capabilities=allowed,
|
|
denied_capabilities=denied,
|
|
read_only=not bool(allowed),
|
|
mentioned_urls=list(base_plan.mentioned_urls),
|
|
mentioned_paths=list(base_plan.mentioned_paths),
|
|
planner="auxiliary_llm",
|
|
planner_status="ok",
|
|
planner_notes=rationale,
|
|
)
|
|
except Exception as exc:
|
|
plan = CamelPlan(
|
|
operator_request=base_plan.operator_request,
|
|
goal_summary=base_plan.goal_summary,
|
|
trusted_context_excerpt=list(base_plan.trusted_context_excerpt),
|
|
allowed_capabilities=[],
|
|
denied_capabilities=[],
|
|
read_only=True,
|
|
mentioned_urls=list(base_plan.mentioned_urls),
|
|
mentioned_paths=list(base_plan.mentioned_paths),
|
|
planner="auxiliary_llm",
|
|
planner_status="fallback_read_only",
|
|
planner_notes=_truncate(f"Classifier unavailable: {exc}", 260),
|
|
)
|
|
|
|
if cache_key:
|
|
self._plan_cache[cache_key] = plan
|
|
return plan
|
|
|
|
def _ensure_classified_plan(self) -> CamelPlan:
|
|
if not self.config.enabled or self.config.mode == "off":
|
|
self.current_plan = self._base_trusted_plan()
|
|
return self.current_plan
|
|
|
|
if self.current_plan.planner_status in {"ok", "fallback_read_only"}:
|
|
return self.current_plan
|
|
|
|
self.current_plan = self._classify_trusted_plan(
|
|
self.latest_trusted_user_message,
|
|
self.trusted_user_history,
|
|
)
|
|
self._sync_current_turn_trace()
|
|
return self.current_plan
|
|
|
|
def _record_tool_decision(
|
|
self,
|
|
tool_name: str,
|
|
tool_args: Dict[str, Any] | None,
|
|
decision: CamelDecision,
|
|
) -> None:
|
|
if not self.config.trace_enabled or not self.current_turn_trace:
|
|
return
|
|
|
|
self.current_turn_trace.tool_decisions.append(
|
|
CamelToolDecisionTrace(
|
|
tool_name=tool_name,
|
|
capability=decision.capability,
|
|
allowed=decision.allowed,
|
|
reason=decision.reason,
|
|
sources=list(decision.sources),
|
|
tool_args_preview=self._tool_args_preview(tool_args),
|
|
)
|
|
)
|
|
self._sync_current_turn_trace()
|
|
|
|
def _record_response_decision(
|
|
self,
|
|
original_content: str,
|
|
decision: CamelResponseDecision,
|
|
) -> None:
|
|
if not self.config.trace_enabled or not self.current_turn_trace:
|
|
return
|
|
|
|
self.current_turn_trace.response_decision = CamelResponseTrace(
|
|
allowed=decision.allowed,
|
|
reason=decision.reason,
|
|
matched_markers=list(decision.matched_markers),
|
|
original_preview=_truncate(original_content or "", self.config.trace_preview_chars),
|
|
final_preview=_truncate(decision.content or "", self.config.trace_preview_chars),
|
|
)
|
|
self._sync_current_turn_trace()
|
|
|
|
def trace_summary(self) -> Dict[str, Any]:
|
|
policy_alerts = 0
|
|
response_alerts = 0
|
|
sources: set[str] = set()
|
|
for turn in self.trace_turns:
|
|
sources.update(turn.untrusted_sources)
|
|
policy_alerts += sum(1 for item in turn.tool_decisions if not item.allowed)
|
|
if turn.response_decision and not turn.response_decision.allowed:
|
|
response_alerts += 1
|
|
|
|
return {
|
|
"session_id": self.session_id,
|
|
"runtime_mode": self._trace_mode(),
|
|
"turn_count": len(self.trace_turns),
|
|
"policy_alert_count": policy_alerts,
|
|
"response_alert_count": response_alerts,
|
|
"unique_untrusted_sources": sorted(sources),
|
|
}
|
|
|
|
def trace_payload(self) -> Dict[str, Any]:
|
|
return {
|
|
"trace_version": 1,
|
|
"session_id": self.session_id,
|
|
"runtime_mode": self._trace_mode(),
|
|
"generated_at": datetime.now(timezone.utc).isoformat(),
|
|
"summary": self.trace_summary(),
|
|
"turns": [asdict(turn) for turn in self.trace_turns],
|
|
}
|
|
|
|
def mark_user_message(
|
|
self,
|
|
message: Dict[str, Any],
|
|
*,
|
|
operator_request: str | None = None,
|
|
) -> Dict[str, Any]:
|
|
marked = dict(message)
|
|
marked["_camel_trust"] = "trusted_user"
|
|
if operator_request is not None:
|
|
marked["_camel_operator_request"] = operator_request
|
|
return marked
|
|
|
|
def mark_assistant_message(self, message: Dict[str, Any]) -> Dict[str, Any]:
|
|
marked = dict(message)
|
|
marked["_camel_trust"] = "model_generated"
|
|
return marked
|
|
|
|
def mark_system_control_message(self, message: Dict[str, Any]) -> Dict[str, Any]:
|
|
marked = dict(message)
|
|
marked["_camel_trust"] = "system_control"
|
|
return marked
|
|
|
|
def _remember_untrusted_observation(
|
|
self,
|
|
source: str,
|
|
flags: Sequence[str],
|
|
markers: Sequence[str] | None = None,
|
|
) -> None:
|
|
if source not in self.untrusted_sources:
|
|
self.untrusted_sources.append(source)
|
|
counts = Counter(self.untrusted_source_counts)
|
|
counts[source] += 1
|
|
self.untrusted_source_counts = dict(counts)
|
|
|
|
flag_counts = Counter(self.untrusted_flag_counts)
|
|
for flag in flags:
|
|
flag_counts[flag] += 1
|
|
self.untrusted_flag_counts = dict(flag_counts)
|
|
|
|
for marker in markers or []:
|
|
if marker not in self.untrusted_output_markers:
|
|
self.untrusted_output_markers.append(marker)
|
|
self._sync_current_turn_trace()
|
|
|
|
def begin_turn(self, user_message: str, history: Iterable[Dict[str, Any]] | None = None) -> None:
|
|
self.latest_trusted_user_message = _strip_system_annotations(user_message or "")
|
|
self.trusted_user_history = []
|
|
self.current_plan = CamelPlan()
|
|
self.untrusted_sources = []
|
|
self.untrusted_source_counts = {}
|
|
self.untrusted_flag_counts = {}
|
|
self.untrusted_output_markers = []
|
|
|
|
history_list = list(history or [])
|
|
tool_sources = _tool_call_source_index(history_list)
|
|
|
|
for message in history_list:
|
|
if (
|
|
message.get("role") == "user"
|
|
and not message.get("_flush_sentinel")
|
|
and message.get("_camel_trust") != "system_control"
|
|
):
|
|
trusted_text = message.get("_camel_operator_request") or message.get("content", "")
|
|
trusted_text = _strip_system_annotations(str(trusted_text))
|
|
if trusted_text:
|
|
self.trusted_user_history.append(trusted_text)
|
|
|
|
record = _extract_untrusted_record(message)
|
|
if record:
|
|
source, flags, markers = record
|
|
self._remember_untrusted_observation(source, flags, markers)
|
|
continue
|
|
|
|
if message.get("role") == "tool":
|
|
tool_call_id = str(message.get("tool_call_id") or "").strip()
|
|
source = tool_sources.get(tool_call_id, "")
|
|
if source and is_untrusted_tool(source):
|
|
content = message.get("content", "")
|
|
text = content if isinstance(content, str) else ""
|
|
flags = _extract_suspicious_flags(text)
|
|
markers = _extract_output_markers(text)
|
|
self._remember_untrusted_observation(source, flags, markers)
|
|
|
|
self.current_plan = self._base_trusted_plan()
|
|
if self.config.trace_enabled:
|
|
self.current_turn_trace = CamelTurnTrace(
|
|
turn_index=len(self.trace_turns) + 1,
|
|
started_at=datetime.now(timezone.utc).isoformat(),
|
|
runtime_mode=self._trace_mode(),
|
|
)
|
|
self.trace_turns.append(self.current_turn_trace)
|
|
self._sync_current_turn_trace()
|
|
else:
|
|
self.current_turn_trace = None
|
|
|
|
def system_prompt_guidance(self) -> str:
|
|
return ""
|
|
|
|
def render_security_envelope(self) -> str:
|
|
return ""
|
|
|
|
def evaluate_tool_call(self, tool_name: str, tool_args: Dict[str, Any] | None = None) -> CamelDecision:
|
|
tool_args = tool_args or {}
|
|
|
|
if not self.config.enabled or self.config.mode == "off":
|
|
decision = CamelDecision(True, "CaMeL disabled")
|
|
self._record_tool_decision(tool_name, tool_args, decision)
|
|
return decision
|
|
|
|
capability = _tool_capability(tool_name, tool_args)
|
|
if not capability:
|
|
decision = CamelDecision(True, "Tool is not policy-gated")
|
|
self._record_tool_decision(tool_name, tool_args, decision)
|
|
return decision
|
|
|
|
if not self.untrusted_sources:
|
|
decision = CamelDecision(
|
|
True,
|
|
"No untrusted data in current context",
|
|
capability=capability,
|
|
)
|
|
self._record_tool_decision(tool_name, tool_args, decision)
|
|
return decision
|
|
|
|
plan = self._ensure_classified_plan()
|
|
|
|
if capability in plan.denied_capabilities:
|
|
decision = CamelDecision(
|
|
False,
|
|
f"Blocked by CaMeL guard: the trusted operator request explicitly denied {_CAPABILITY_LABELS.get(capability, capability)}",
|
|
sources=list(self.untrusted_sources),
|
|
capability=capability,
|
|
)
|
|
self._record_tool_decision(tool_name, tool_args, decision)
|
|
return decision
|
|
|
|
if capability in plan.allowed_capabilities:
|
|
decision = CamelDecision(
|
|
True,
|
|
f"Trusted operator plan authorizes {_CAPABILITY_LABELS.get(capability, capability)}",
|
|
sources=list(self.untrusted_sources),
|
|
capability=capability,
|
|
)
|
|
self._record_tool_decision(tool_name, tool_args, decision)
|
|
return decision
|
|
|
|
decision = CamelDecision(
|
|
False,
|
|
(
|
|
f"Blocked by CaMeL guard: {tool_name} requires {_CAPABILITY_LABELS.get(capability, capability)} "
|
|
f"but current context includes untrusted data from {', '.join(self.untrusted_sources)} "
|
|
"and the trusted operator plan did not authorize that capability"
|
|
),
|
|
sources=list(self.untrusted_sources),
|
|
capability=capability,
|
|
)
|
|
self._record_tool_decision(tool_name, tool_args, decision)
|
|
return decision
|
|
|
|
def evaluate_assistant_response(self, content: str) -> CamelResponseDecision:
|
|
text = content or ""
|
|
if not self.config.enabled or self.config.mode == "off" or not text.strip():
|
|
decision = CamelResponseDecision(True, "CaMeL disabled or empty response", text)
|
|
self._record_response_decision(text, decision)
|
|
return decision
|
|
|
|
if not self.untrusted_output_markers:
|
|
decision = CamelResponseDecision(True, "No embedded output directives observed", text)
|
|
self._record_response_decision(text, decision)
|
|
return decision
|
|
|
|
operator_request = self.current_plan.operator_request or ""
|
|
if _OUTPUT_ANALYSIS_CONTEXT_RE.search(operator_request):
|
|
decision = CamelResponseDecision(
|
|
True,
|
|
"Operator explicitly requested analysis or quotation of hidden content",
|
|
text,
|
|
)
|
|
self._record_response_decision(text, decision)
|
|
return decision
|
|
|
|
normalized_request = _normalize_for_match(operator_request)
|
|
matched: List[str] = []
|
|
sanitized = text
|
|
|
|
for marker in self.untrusted_output_markers:
|
|
normalized_marker = _normalize_for_match(marker)
|
|
if not normalized_marker or normalized_marker in normalized_request:
|
|
continue
|
|
if _response_starts_with_marker(sanitized, marker):
|
|
matched.append(marker)
|
|
sanitized = _strip_marker_from_response(sanitized, marker)
|
|
|
|
sanitized = sanitized.strip()
|
|
if not matched:
|
|
decision = CamelResponseDecision(True, "No response hijack markers detected", text)
|
|
self._record_response_decision(text, decision)
|
|
return decision
|
|
|
|
if not sanitized:
|
|
sanitized = (
|
|
"I detected hidden instructions embedded in untrusted content and ignored them. "
|
|
"Use only the visible application information."
|
|
)
|
|
|
|
decision = CamelResponseDecision(
|
|
False,
|
|
"Blocked by CaMeL guard: assistant response echoed output directives from untrusted content",
|
|
sanitized,
|
|
matched_markers=matched,
|
|
)
|
|
self._record_response_decision(text, decision)
|
|
return decision
|
|
|
|
def wrap_tool_result(self, tool_name: str, content: str) -> tuple[str, bool]:
|
|
if not self.config.enabled or self.config.mode == "off":
|
|
return content, False
|
|
if not is_untrusted_tool(tool_name):
|
|
return content, False
|
|
|
|
try:
|
|
parsed = json.loads(content)
|
|
except Exception:
|
|
parsed = None
|
|
|
|
if isinstance(parsed, dict):
|
|
existing_guard = parsed.get("_camel_guard")
|
|
if isinstance(existing_guard, dict) and existing_guard.get("blocked"):
|
|
return content, False
|
|
|
|
source = _extract_source_label(tool_name)
|
|
flags = _extract_suspicious_flags(content)
|
|
self._remember_untrusted_observation(source, flags, [])
|
|
return content, False
|