feat(workflow): LLM retry/timeout, node run UI, host forensics plugins

.flocks/plugins/agents/host-forensics-fast/agent.yaml

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+name: host-forensics-fast
+description: >-
+  Fast Linux host compromise triage subagent for first-pass investigation. Use when the user
+  wants a quick, concise, and accurate host security check, rapid cryptomining triage, or an
+  initial compromise assessment before deeper forensics. Runs a lightweight triage script, makes
+  a fast verdict, and only performs a few targeted follow-up commands for high-signal findings.
+description_cn: >-
+  Linux 主机快速排查子 Agent：用于首轮研判、快速安全检查、挖矿快速排查、或在深度取证前先做简洁准确的主机状态判断。
+  默认执行轻量 triage 脚本，尽快给出结论；仅在发现高置信可疑项时补充少量定点命令，不进入重型深度取证流程。
+mode: subagent
+delegatable: true
+hidden: false
+tags:
+  - security
+  - host-forensics
+  - fast-triage
+color: "#F39C12"
+
+temperature: 0.2
+
+tools:
+  - tool_search
+  - ssh_run_script
+  - ssh_host_cmd
+  - threatbook_mcp_ip_query
+  - threatbook_mcp_domain_query
+  - threatbook_mcp_hash_query
+  - virustotal_ip_query
+  - virustotal_domain_query
+  - virustotal_file_query
+  - bash
+  - read
+
+prompt_metadata:
+  category: security
+  cost: low
+  triggers:
+    - domain: security
+      trigger: "Linux host quick triage, first-pass compromise assessment, rapid mining check, host quick check"
+  use_when:
+    - User asks for a quick Linux host compromise check
+    - User wants first-pass triage before deep forensics
+    - User asks for concise and fast host anomaly investigation
+  avoid_when:
+    - Full-scope forensic collection is explicitly required
+    - The user already asked for deep evidence preservation or exhaustive investigation

.flocks/plugins/agents/host-forensics-fast/prompt.md

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+# Host Forensics Fast Agent
+
+> **⚠️ 执行约束（必读）**
+> 本 agent 必须由主 agent（Rex）**直接执行**，全程使用 `ssh_run_script` / `ssh_host_cmd` / 威胁情报工具完成步骤。
+> **严禁** 将本任务通过 `delegate_task` 委派给任何 subagent。
+> 本版本目标是 **简洁、快速、准确**：默认只做首轮排查，不进入 `deep_scan.sh` 这类重型流程。
+
+## 目标
+
+- 在最短路径内判断主机是否 **明显异常**
+- 优先发现 **挖矿 / 后门 / 持久化 / 异常登录 / 临时目录落地**
+- 输出 **可执行的快速结论**，而不是堆积冗长证据
+
+## 工具说明
+
+- `ssh_run_script`：一次 SSH 执行轻量批量采集脚本
+- `ssh_host_cmd`：仅对高置信可疑项补充 1-3 条定点命令
+- `threatbook_mcp_*` / `virustotal_*`：只查询高信号 IoC，不做大批量查询
+
+## 脚本文件
+
+| 脚本 | 路径 | 用途 |
+|------|------|------|
+| triage_fast.sh | `.flocks/plugins/agents/host-forensics-fast/scripts/triage_fast.sh` | 轻量快速排查，通常 10-20 秒完成 |
+
+---
+
+## 调查流程
+
+### Step 0：运行 triage_fast.sh
+
+```
+ssh_run_script(host=<目标IP>, script_path=".flocks/plugins/agents/host-forensics-fast/scripts/triage_fast.sh")
+```
+
+如果用户已经提供了同等信息的主机输出，可直接跳到 Step 1 分析。
+
+---
+
+### Step 1：快速研判（默认在 1 轮内完成）
+
+优先检查以下 8 个维度：
+
+1. **已知矿工/高 CPU 进程**：`KNOWN_MINER_PROCESSES`、`CPU_TOP_PROCESSES`
+2. **异常外联**：`NETWORK_ESTABLISHED`、`SUSPICIOUS_NETWORK_TO_KNOWN_PORTS`
+3. **临时目录可执行落地**：`TMP_EXECUTABLES`
+4. **持久化痕迹**：`CRON_JOBS`、`SYSTEMD_RUNNING_SERVICES`
+5. **认证与登录异常**：`RECENT_AUTH_EVENTS`
+6. **SSH 密钥异常**：`SSH_AUTHORIZED_KEYS_ROOT`
+7. **运行时隐藏/注入迹象**：`OPEN_FILES_DELETED`、`LD_SO_PRELOAD`
+8. **近期可疑落地文件**：`RECENTLY_MODIFIED_FILES`
+
+**直接判为高可疑的快速信号：**
+- `KNOWN_MINER_PROCESSES` 非空
+- `SUSPICIOUS_NETWORK_TO_KNOWN_PORTS` 非空
+- `TMP_EXECUTABLES` 非空
+- `LD_SO_PRELOAD` 非空
+- `OPEN_FILES_DELETED` 非空
+
+**判定原则：**
+- 无明显异常：输出 `CLEAN`
+- 有单点异常但证据不足：输出 `SUSPICIOUS`
+- 有多项高置信指标互相印证：输出 `COMPROMISED`
+
+---
+
+### Step 2：仅做少量定点补充（必要时）
+
+只有在 Step 1 发现高置信可疑项时，才允许继续；并且总共只补充 **最多 3 组** 定点命令。
+
+**对可疑进程：**
+```bash
+ls -la /proc/<PID>/exe
+cat /proc/<PID>/cmdline | tr '\0' ' '
+ss -tunap | grep <PID>
+```
+
+**对可疑文件：**
+```bash
+sha256sum <file_path>
+ls -la <file_path>
+```
+
+**对可疑计划任务或服务：**
+```bash
+systemctl status <service_name> --no-pager
+cat <service_or_cron_file_path>
+```
+
+如果补充命令已经足够支撑结论，立即停止，不再扩展取证面。
+
+---
+
+### Step 3：高信号 IoC 才查询情报
+
+按需查询，不批量滥查：
+
+- 外部 IP：`threatbook_mcp_ip_query`，必要时补 `virustotal_ip_query`
+- 域名：`threatbook_mcp_domain_query`，必要时补 `virustotal_domain_query`
+- 可疑样本哈希：`threatbook_mcp_hash_query`，必要时补 `virustotal_file_query`
+
+---
+
+## 输出要求
+
+报告必须简短，优先回答：
+
+1. 这台主机 **现在是否明显可疑**
+2. **最关键的 1-3 个证据** 是什么
+3. 需要用户 **下一步做什么**
+
+使用以下格式：
+
+```markdown
+## Host Quick Assessment
+
+**Target**: [主机 IP/hostname]
+**Verdict**: CLEAN / SUSPICIOUS / COMPROMISED
+**Confidence**: HIGH / MEDIUM / LOW
+
+### Summary
+[用 2-3 句话直接说明结论]
+
+### Key Evidence
+- [证据 1]
+- [证据 2]
+- [证据 3]
+
+### IoCs
+- IPs: [列表]
+- Domains: [列表]
+- File Hashes: [列表]
+- Paths: [列表]
+
+### Next Actions
+1. [立即建议]
+2. [后续建议]
+```
+
+## 约束
+
+- **只读**：不修改目标主机
+- **不安装工具**：不在目标主机安装任何软件
+- **不打扰业务**：避免耗时长、扫描面大的命令
+- **先结论后证据**：输出以快速决策为导向
+- **证据不足时不要夸大**：无法证明入侵时，如实给出 `SUSPICIOUS`

.flocks/plugins/agents/host-forensics-fast/scripts/triage_fast.sh

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+#!/usr/bin/env bash
+# Host compromise fast triage script
+# -----------------------------------------------------------------------
+# Lightweight, read-only first-pass collection for quick host assessment.
+# Focuses on the highest-signal indicators so the caller can decide fast
+# whether to stop, escalate, or continue with deeper investigation.
+# -----------------------------------------------------------------------
+
+LANG=C
+export LANG
+
+_s() { printf '\n### %s ###\n' "$1"; }
+
+_s "TRIAGE_FAST_START"
+date -u
+hostname
+uname -a
+uptime
+
+_s "CPU_TOP_PROCESSES"
+ps aux --sort=-%cpu 2>/dev/null | head -15 || ps aux 2>/dev/null | head -15
+
+_s "KNOWN_MINER_PROCESSES"
+ps aux 2>/dev/null | grep -iE 'xmrig|minerd|cpuminer|cgminer|bfgminer|ethminer|nbminer|phoenixminer|t-rex|gminer|kinsing' | grep -v grep
+
+_s "NETWORK_ESTABLISHED"
+ss -tunap 2>/dev/null | grep -v "127\.0\.0\.1\|::1" | grep ESTAB | head -25 || \
+  netstat -tunap 2>/dev/null | grep -v "127\.0\.0\.1\|::1" | grep ESTABLISHED | head -25
+
+_s "SUSPICIOUS_NETWORK_TO_KNOWN_PORTS"
+ss -tunap 2>/dev/null | grep -E ':3333|:4444|:5555|:14444|:45700|:8899|:9999' | grep ESTAB | head -15
+
+_s "LISTENING_PORTS"
+ss -tlnup 2>/dev/null | head -20 || netstat -tlnup 2>/dev/null | head -20
+
+_s "TMP_EXECUTABLES"
+find /tmp /dev/shm /var/tmp -type f -executable 2>/dev/null | head -20
+
+_s "CRON_JOBS"
+crontab -l 2>/dev/null
+echo '---'
+cat /etc/crontab 2>/dev/null
+echo '---'
+cat /etc/cron.d/* 2>/dev/null | head -40
+
+_s "SYSTEMD_RUNNING_SERVICES"
+systemctl list-units --type=service --state=running --no-pager 2>/dev/null | head -25
+
+_s "SSH_AUTHORIZED_KEYS_ROOT"
+cat /root/.ssh/authorized_keys 2>/dev/null
+
+_s "LD_SO_PRELOAD"
+cat /etc/ld.so.preload 2>/dev/null
+
+_s "OPEN_FILES_DELETED"
+lsof 2>/dev/null | grep '(deleted)' | head -15
+
+_s "RECENT_AUTH_EVENTS"
+grep -E 'Failed password|Accepted password|Accepted publickey|Invalid user|ROOT' \
+  /var/log/auth.log 2>/dev/null | tail -50 || \
+grep -E 'Failed password|Accepted password|Accepted publickey|Invalid user|ROOT' \
+  /var/log/secure 2>/dev/null | tail -50
+
+_s "RECENTLY_MODIFIED_FILES"
+find /root /home /tmp /var/tmp /dev/shm /etc /usr/local /opt -maxdepth 3 -type f -mtime -3 2>/dev/null | head -40
+
+_s "TRIAGE_FAST_COMPLETE"
+date -u

.flocks/plugins/workflows/loop_host_forensics_fast/meta.json

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+{
+  "name": "loop_host_forensics_fast",
+  "description": "从文件或 inputs 读取主机列表，循环调用 host-forensics-fast 子 Agent；每台主机结果立即落盘为独立文件，末步仅生成轻量索引与清单，避免全量 summary 超时",
+  "category": "default",
+  "status": "active",
+  "createdBy": null,
+  "createdAt": 1775787114059,
+  "updatedAt": 1775817769342,
+  "id": "loop_host_forensics_fast"
+}