The kvb-hub is a local review hub in a container bound to 127.0.0.1: one page, JSON APIs and an MCP endpoint for the operator's inbox, asks, decisions, staged-commit reviews, the radio stream, the agent graph, the worktree tree, push-to-talk and read-aloud radio (Piper, whisper.cpp) and an optional LLM command line. The hub is only a relay. The host executors in hub/client (the runner user service, the PermissionRequest hook and the approval CLI the commit skills call) verify a WebAuthn passkey signature against keys pinned outside every sandbox, refuse replays and fail closed. scripts/hub.sh with make hub-install, hub-check, hub-pin, hub-runner and hub-hook installs and checks the hub; hub-hook writes ~/.claude/settings.json after a backup. make watch-check shows a stuck watch hook. The new kvb-git-diff skill and the commit skills route reviews through the hub; the test_hub_* suites replace test_hub.py. Security review (kvb-think-criticize, three skeptics) fixed four holes: signed rules auto-approved chained shell commands; the client and LLM openers followed redirects, the LLM one with its bearer key; the worktree scan ran git fsmonitor and filter commands from agent-writable repos; compose set no memory, pids or health limits. Documented until core requirement 093, on the operator's word: the hub page is trusted while signing and pinning, local processes can forge the unsigned operator actions, and the container reads the host /tmp. Committed on the operator's word despite the gate: the passkey path is not yet verified live. Accepted MEDUSA false positives (137 findings on 115 lines, rows in security-accepted.jsonl): EXA002 x17, MEDUSA-MM-SCAN-058 x12, B603 x8, MEDUSA-FTSC-SCAN-089 x7, MEDUSA-PRIV-SCAN-762 x6, AIC-EXFIL-005 x5, EXA006 x5, MEDUSA-FTSCAN-231 x5, WEB-SSRF x5, MEDUSA-INF-SCAN-2057 x3, RH005 x3, TC001 x3, LO002 x2, MEDUSA-AEXP-SCAN-096 x2, MEDUSA-CGS-SCAN-028 x2, MEDUSA-INF-SCAN-1350 x2, MEDUSA-INF-SCAN-2369 x2, MEDUSA-INF-SCAN-2440 x2, MEDUSA-INF-SCAN-2638 x2, MLSC-SERIAL-002 x2, PL002 x2, PQC005 x2, SAST-PATH-001 x2, TC004 x2, TC005 x2, TC006 x2, TC007 x2, AA-146, EXA007, FINE-050, GB-ENCODE-001, GB-ENCODE-003, MEDUSA-CGS-SCAN-029, MEDUSA-CGS-SCAN-103, MEDUSA-DP-SCAN-1034, MEDUSA-DP-SCAN-1916, MEDUSA-DP-SCAN-954, MEDUSA-EXF26-TOOL-004, MEDUSA-FT-TRIGGER-005, MEDUSA-INF-SCAN-2206, MEDUSA-INF-SCAN-2457, MEDUSA-INF-WEB-003, MEDUSA-INFRA-SCAN-030, MEDUSA-MP-SCAN-1135, MEDUSA-RLHF-POISON-002, MEDUSA-RT-SCAN-006, MM-ENCODE-001, MP-124, PQC001, PQC002, PQC006, RP001, TC009, TC010, WEB-FLASK-004. 🎯 Fix: 80 % 💥 Break: 4 % 💸 Cost: 129 % ⏱️ Time: – 🛡️ Security: 100 % 💰 Value: ? 🏆 Score: 60 🚦 Gate: ⛔ fix 80 % < 90; cost 129 % > 100: ask the operator before the commit ``` /home/kevinveenbirkenbach/Repositories/github.com/kevinveenbirkenbach/skills/.worktrees/feature/kvb-hub ``` Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
from __future__ import annotations
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import subprocess
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import sys
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from dataclasses import dataclass
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from pathlib import Path
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from typing import Protocol
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SCRIPT_TIMEOUT = 60
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OUTPUT_LIMIT = 4000
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SAFE_PATH = "/usr/local/bin:/usr/bin:/bin"
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RADIO = "kvb-org-radio/scripts/radio.py"
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RASCI = "kvb-org-rasci/scripts/rasci.py"
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NIGHT = "kvb-org-sunset/scripts/night.py"
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OPERATOR_SCRIPT = "kvb-org-operator/scripts/operator.py"
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class Runner(Protocol):
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def run(self, script: str, args: list[str]) -> dict: ...
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@dataclass(frozen=True)
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class Scripts:
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skills: Path
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council: Path
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home: Path
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def run(self, script: str, args: list[str]) -> dict:
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command = " ".join([Path(script).name, *args])
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env = {"PATH": SAFE_PATH, "HOME": str(self.home), "AGENTS_COUNCIL_ROOT": str(self.council), "PYTHONDONTWRITEBYTECODE": "1"}
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try:
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done = subprocess.run(
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[sys.executable, str(self.skills / script), *args],
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capture_output=True,
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encoding="utf-8",
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errors="replace",
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timeout=SCRIPT_TIMEOUT,
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env=env,
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stdin=subprocess.DEVNULL,
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check=False,
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)
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except (OSError, subprocess.TimeoutExpired) as error:
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return {"command": command, "code": -1, "stdout": "", "stderr": str(error)}
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return {"command": command, "code": done.returncode, "stdout": done.stdout[-OUTPUT_LIMIT:], "stderr": done.stderr[-OUTPUT_LIMIT:]}
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